In many buildings, the ceiling can be too high for a normal person to reach when the person aims to mount or de-mount a unit such as a fire detection device.

EP 25211.08 A2 describes a mounting system according to the known technique.

The invention pertains a mounting system comprising: An electronic unit for installation in a; partially cylindrical housing with fixed or variating radius, a side wall, a front side, a back side and a central axis running between the housing’s front side and back side and said housing comprises means of fixture on the housing frontside, locking mechanisms on the housing back side and coupling means on the housing side wall; a bracket, comprising a periphery, a coupling side, a fastening side and a central axis running between the coupling side and the fastening side, the fastening side comprises means of fixation onto a flat surface such as a ceiling or a wall and said bracket comprises a first set of fixation means mutually adapted to the housing’s coupling means in such a way that housing and bracket can be coupled together by aligning housing and bracket coaxially against each other until the housing’s backside abuts the bracket’s coupling side that by rotation, centers the alarm housing relative to the ceiling fixation and there after rotate the housing in a specific circumferential direction around the housing's central axis relative to the ceiling fixation bracket whereby the housing’s coupling means and the bracket’s first set of fixation means are coupled together with a noticeably increased first friction coefficient; an assembly unit with an assembly side, a holding side and a central axis running between the assembly side and the holding side with said assembly unit comprising a first set of mounting means mutually adapted to the housing’s mounting means in such a way that the housing’s mounting means and the assembly unit’s first set of mounting means are joined by aligning the housing’s mounting means with the assembly unit’s assembly side coaxially until the housing’s front side abuts against the assembly nit’s assembly side and thereafter fixate the housing while the assembly unit is rotated and thereby is centered in the specific circumferential direction around its central axis whereby the housing’s mounting means and the assembly units first set of mounting means are reversibly coupled with a noticeable increased second friction coefficient greater than the first friction coefficient between the housing’s coupling means and the bracket’s first coupling means.

This and other problems are solved by application of the invention as the coupling side of the bracket comprises locking mechanisms and the housing back side comprises complementary locking mechanisms that in combination allow coupling of housing and bracket by rotation of the hou sing relative to the bracket in the specific rotation direction and where said locking and complementary locking mechanisms prevents rotation of the housing in the opposite direction of the specific circumferential direction in the position or positions where the coupling of housing and bracket has occurred.

By designing the bracket’s coupling side to comprise locking mechanisms and the housing back side to comprise complementary locking mechanisms that allow the cou pling of housing and bracket by rotation of the housing relati ve to the bracket in the specific circumferential direction and simultaneously prevent rotation of the housing in the opposite rotation direction of the specific rotation direction in the position or the positions where a coupling between housing and bracket has occurred, it is achieved that an operator can mount the housing onto a ceiling by firstly coupling the partially cylindrical housing with the assembly unit and thereafter join the assembly unit already joined with the partially cylindrical housing coaxially with the bracket whereafter the bracket and the partial cylindrical housing joins coaxially with the bracket, whereafter the bracket and the partial cylindrical housing are brought together until the partial cylindrical housing abuts against the bracket.

Afterward, the partial cylindrical housing is rotated and centered in the bracket in the specific circumferential direction until the noticeable increased friction coefficient occurs when the housing is coupled to the bracket. Then, the assembly tool is rotated in the opposite direction When the assembly tool is rotated in the opposite direction of the specific circumferential direction, the locking means and the complementary a locking means prevent the housing and bracket from being rotated out of engagement However, the rotation causes the reversible coupling between the housing’s mounting means and the first set of mounting means of the assembly unit to be re versed, thereby releasing the assembly unit from the housing.

Thus, a user of the system can attach a housing to a bracket positi oned, for example, on a ceiling by first mounting the housing in the assembly tool and then guiding the assembly tool with the housing up to the bracket so that the housing aligns coaxially with the bracket. Subsequently, the housing and the bracket are coupled by rotating the assembly tool in the specific circumferential direction until the noticeable increased friction is felt. Afterward, the assembly tool with the housing is rotated in the opposite direction of the specific circ umferential direction, thereby keeping the housing and the bracket coupled, while the reversible connection between the assembly tool and the housing is reversed, releasing the assembly tool from the housing.

In known systems, locking or friction-increasing means are placed in connection with the coupling means themselves, which can result in the locking, means being influenced by the coupling means, leading to malfunctions. By placing the lockingmeans and the complementary' locking means on the bracket's mounting side and the housing's bottom, respectively, coupling means and locking means are positioned in a way that they- cannot affect each other, thereby minimizing the risk of errors due to mutual influence between them.

In one embodiment, the system relates to a mounting system where the unit is a fire alarm.

In one embodiment, the system relates to a mounting system that includes a handle part with at least one flexible and bendable joint, which can be attached to the mounting part. In one embodiment, the invention relates to a mounting system, where the bracket’s first set of coupling means includes resilient parts arranged along the bracket’s periphery, and these parts are adapted to complementary coupling means located on the housing's side.

In one embodiment the invention relates to a mounting system where the fire alarm includes an upper spring-loaded front panel and/or the entire alarm housing, which, under normal conditions, is electrically disconnected via a switch. However, by exerting gentle pressure anywhere on the alarm housing, false alarms are interrupted. Alternatively, the switch is electrically connected under normal conditions but can be interrupted by gentle pressure anywhere on the alarm housing, thereby interrupting false alarms. In other words, the entire alarm housing, or essentially the entire alarm housing, functions as a switch that can interrapt the alarm, tor example, by pressing it with a broomstick or another readily available tool that can reach the alarm housing. Thus, a user who cannot immediately reach the alarm housing, for instance, can stand on the floor without the risk of falling and interrupt the alarm using a press from virtually any accessible tool long enough to reach the alarm housing.

In one embodiment, the invention relates to a mounting system where the fire alarm includes an upper spring-loaded front panel and/or the entire alarm housing. Between the base and the alarm housing, there is a flexible gap used to test or deactivate a false alarm. Under normal conditions, the front panel or the entire alarm housing is electrically disconnected via a switch. However, by exerting pressure for a few seconds, a functional test can be conducted to check whether the alarm lacks power supply from the battery or fixed power supply via the sliding coupling 250, as shown in Figure 7. Alternatively, under normal conditions, the front panel or the entire, alarm housing is electrically connected via the switch, and the test is triggered by interrupting the contact for a few seconds with pressure. This is advantageous as an operator ~ in the case of false alarms or function tests - can interrupVtest the alarm by simply bringing any object up to the alarm housing and, with a slight pressure on the entire alarm housing, interrupt/test false alarms.

In one embodiment, the invention relates to a mounting system where the housing and bracket include complementary electrical slip rings, allowing mutual rotation between the parts. Such electrical slip rings are known from, for example, kettles used for boiling water, and their functionality will therefore not be further explained. However, they are highly suitable for use in the invention to supply power to the device in the housing, for example, a fire alarm, as the bracket and housing are coupled by rotation.

In one embodiment, the invention relates to a mounting system where the engaging means of the ho using are located on the backside of the housing.

In one embodiment, the invention relates to a mounting system where the housing's coupling means are located on the side surface of the cylinder.

In one embodiment, the invention relates to a mounting system where the bracket’s first set of coupling means is arranged along the bracket’s periphery, so that the coupling means

In the following, an embodiment of the invention will be explained with reference to the figures, where:

Fig. 1 shows an assembly unit in side view;

Fig. 2 shows, in side view, an embodiment of a cylindrical housing;

Fig. 3 shows, in side view, a bracket;

Fig. 4 shows a bracket viewed from the side that is to face the flat surface to which the cylindrical housing is to be mounted;

Fig. 5 shows a bracket in side view; Fig. 6 shows a bracket from the side that the cy lindrical housing is to be mounted on; Fig, 7 shows a cylindrical housing from the side that is to face the bracket;

Fig. 8 shows a cylindrical housing from the same side as shown in Fig. 7;

Fig, 9 shows a cylindrical housing seen from the top;

Fig, 10 shows, in side view, an assembly unit with an assembly rod;

Fig. 11 shows, from the holding side, an assembly unit;

Fig. 12 shows, in side view, a stop unit;

Fig, 13 shows a container for storing an alarm unit with a cylindrical housing, assembly unit, and three extension rods; and

Fig. 14 shows an embodiment of a flashlight holder.

In Figures I -3, a mounting system for mounting a unit on a surface such as a ceiling is shown. Typically, according to the invention, the mounting system will include an electronic unit built into the housing of the assembly unit. this unit is preferably a fire alarm.

The house has a front side 30, and this is the side that will face downward when the house is mounted in a bracket on, for example, a ceiling. In contrast to the front 30, the house has a backside 31 , and this side wi ll face the ceiling when the house is mounted on it. At the top of Figure 1, a flexible and bendable rod 1 is shown, which is detachably attached to the assembly tool 2. Furthermore, a gearwheel 3 is shown, which can engage in notches for easier rotation of the assembly tool. The attachment itself can be done with snap-locking means, and typically, the rod 1 includes several flexible and bendable joints to reduce friction between the assembly tool and the housing (not shown in the figure). This allows it to be connected to an extension, making it suitable for mounting, even at great ceiling heights.

According to the invention, the alarm housing is a partially cylindrical housing 3, as shown in Figure 2, The fact that the housing is partially cylindrical should not be narrowly interpreted as the housing having a constant radius. Instead, the housing can also be shaped so that it has a varying radius (diameter), as shown in Figure 2, where the housing’s diameter is smaller at the front than it is at the back.

For clarity, a center axis Ch is depicted, running from the front to the back of the housing. The partially cylindrical housing includes essentially identical mounting means located on the cylindrical housing front with a 1 ,20-degree offset. These mounting means can be faintly seen in Figure 2.

The mounting system includes a bracket 4, which is shown from the side in Figure 3. This bracket is securely attached to the surface on which the unit is to be mounted, typically a ceiling.

It is on this bracket, that the cylindrical housing is mounted. The bracket is shown in more detail in Figure 4, In this figure, the bracket is viewed from below, Le,, from the side (side 8 shown in Figure 3 ) that frees the surface on which the bracket is to be mounted. This side is also referred to in the application as the bracket's fastening side.

In Figure 4, it can be seen that the bracket is circular with a periphery 6 along which the bracket’s first coupling means 40a, 40b, 40c are mounted with a 1.20>degree offset These first coupling means are mutually adapted to the cylindrical housing's coupling means 33 a, 33 b, 33c so that the cylindrical housing can be coaxially guided towards the bracket while the bracket's first set of coupling means 40a, 40b, 40c are guided between the cylindrical housing's coupling means 33a, 33b, 33c,

In Figure 5, the bracket is seen from the side. As particularly well seen in this figure, the bracket’s first coupling means 40a, 40b, and 40c are curved with a. concave side facing toward the center of the bracket. The purpose of this is that the concave side of the first coupling means can thus hold/gnp the coupling means 33a, 33b, 33c on the side wall of the cylindrical housing. The bracket has a coupling side 7, as shown in greater detai l in Figure 6. The coupling side is - as mentioned above - the side to which the cylindrical housing is connected. The other side of the bracket is the bracket’s fastening side 8. In Figure 6, the bracket is shown with a center axis Cb running between the coupling side and the fastening side, and the fastening side includes means 8a, 8b, 8c for attachment to a surface such as a ceiling or a wall. Normally, these means are holes, allowing the bracket to be screwed into the ceiling. In Figures 4 and 6, openings 41 a, 4 lb, 41c are seen, and these openings are one embodiment of locking means adapted to complementary locking means in the housing. The functionality of these wi ll be explained in more detail in the context of the explanation of Figures 7-10.

In the middle of the bracket, in this embodiment, an electrical/data cylindrical slip ring is present. This type of electrical slip rings is known from, for example, electric kettles used in households, and it is adapted to a complementary electrical slip ring 250, which can advantageously be spring-loaded for easier assembly (as seen in Figure 8) on the top surface of the housing. This system of electrical slip rings can be used to connect the unit, including fire alarms, to an electrical power source that is permanently connected to the bracket's slip ring 250.

In an alternative embodiment, the unit is powered by batteries and, therefore, does not require an electrical connection to the bracket.

As also mentioned, the bracket's first coupling means 40a, 40b, 40c are mutually adapted to the cylindrical housing's coupling means 33a, 33b, 33c so that the cylindrical housing and bracket can be coupled by coaxially guiding the cylindrical housing and bracket towards each other while the cylindrical housing's coupling means 33a, 33b, 33c are inserted between the cylindrical housing's coupling means until the back of the cylindrical housing is flush with the coupling side of the bracket. Then, the cylindrical housing is rotated in a specific direction of rotation, and at the same time, it is centered around the center axis relative to the bracket Typically, the specific direction is clockwise rotation, but the invention can, of course, also be implemented. to be turned in the opposite direction. When this is done, the cylindrical housing’s coupling means are brought below the bracket's first set of coupling means, and thereby, the cy lindrical housing is coupled with the bracket under a noticeable increased first friction coefficient. By "coupled,” it means that the cylindrical housing anti the bracket cannot, be pulled apart when pulling them in opposite directions, primarily along their center axes, Ch and Cb.

In Figure 7, the cylindrical housing is seen from the side that faces the ceiling when the cylindrical housing is placed in a bracket attached to a ceiling. In this figure, the embodiment of the invention is shown, where the housing is equipped with, the three coupling means 33a, 33b, 33c, which are located on the housing's wall/side with a 120-degree offset. In the middle of the housing, a slip ring 250 is visible.

In Figure 8, the cylindrical housing is seen from the same side as it is seen in Figure 7, and in both Figure 7 and Figure 8, the mounting means used to reversibly attach the cylindrical housing to a mounting unit 2 are shown in greater detail.

In Figure 9, the cylindrical housing is seen from the front, he., towards side 30, which is the side that can engage with tire mounting unit used to guide the cylindrical housing up to the bracket and then engage it with the bracket. The cylindrical housing includes three substantially identical mounting means 134 a, 134b, 134c, which are arranged with a 120-degree offset on the cylindrical housing. These mounting means are designed to be complementary to a first set of mounting means 202a, 202b, 202c on the mounting unit, and their functionality will be explained more clearly below with reference to Figure 10. In addition, the housing includes locking means 34a, 34b, 34c located on the back of the cylindrical housing with a 120-degree offset (these locking means cannot be seen in Figure 9 but are visible in Figures 7 and 8).

In the illustrated embodiment, these locking means are designed as small resiliently extending wedges, shaped and adapted to the openings 41a, 41b, 41c (mentioned in connection with Figure 6) on the bracket so that due to their resilient properties and inclined shape 34a, 34b, 34c, they will enter the openings 41a, 41b, 41 e when the housing - when viewed from the front - is rotated clockwise, engaging with the bracket (as explained with reference to Figure 7).

When the back edge of the wedges ’’fall into the openings,” this can be felt as a click, and momentarily, the increased friction created as the wedges slide on the bracket during deformation will disappear. Due to the wedge's shape with a back edge that is essentially perpendicular to the bracket’s plane, the back edges of one or more wedges inserted into the openings 41a, 41b, 41c, along with the edges 141a, 141b, 141c of the openings, will prevent the cylindrical housing from being rotated counterclockwise in relation to the bracket.

At the same time, the wedge shape allows the cylindrical housing to continue to rotate clockwise, and the wedges, due to their inclined shape and resilient property, will simply be pushed out of the openings when they encounter the edges of the openings during this rotation.

A skilled professional can, of course, modify this mechanism so that the wedges, openings, the bracket's first set of couplings, and the housing's couplings operate in reverse rotation. A skilled professional can also change the number of openings and resilient wedges to achieve a similar result, and, of course, they can achieve a similar result by altering the design so that the resilient wedges are located in. the bracket, while the openings are in the cylindrical housing.

As explained in connection with Figure 1, the mounting system also includes a mounting unit 1 with a mounting side, 200, a holding side 201, and a center axis Cm running between the mounting side and the holding side. In Figure 10, this mounting unit is shown in greater tietail, and here it. can be seen that the mounting unit inchides a first set of mounting means comprising three mounting means 202a, 202b, 202c, These mounting means are adapted io the cylindrical housing mounting means 134a, 134b, 134c so that the mounting unit and the cy lindrical housing can be coupled by coaxially guiding the mounting unit toward the cylindrical housing while the first set of mounting means 202a, 202b, 202c is inserted between the mounting means 134a, 134b, 134c and until the front 30 of t he cylindrical housing abuts the linderside/mounting side 200 o f the mounting tool, after which the mounting unit is rotated in a specific rotational direction relative to the cylindrical housing. During this process, the first set of mounting means 202a, 202b, 202c of the mounting unit will grip around the mounting means 134a, 134b, 134c of the cylindrical housing, and under this process, the lower catching parts of the three identical mounting means, as shown with reference to 210 in Figure 8, will grasp and hold the cylindrical housing 3.

The first set of mounting means and the resilien t housing mounting means are mutually adapted in such a way that the friction occurring between these parts is greater than the friction occurring between the bracket's first coupling means 40a, 40b, 40c and the cylindrical housing’s coupling means when these are rotated into engagement. This ensures that the mounting unit does not separate from the cylindrical housing if an operator continues to rotate the cylindrical housing after it has engaged with the bracket. This is utilized when a cylindrical housing needs to be removed from a bracket, as the mounting unit is simply brought up to the cylindrical housing and connected to it by rotating it in a specific direction, and this rotation is then continued, causing the cylindrical housing, due to the lower friction between the cylindrical housing and the bracket, to rotate within the bracket and thereby be released from the bracket.

In Figure 11 , there is a stop unit 204 that is pivotable in the mounting unit, allowing it to be rotated lor an open/ close function depending on whether the alarm housing needs to be disassembled or mounted onto the ceiling bracket. The stop unit and the mounting unit are mutually adapted so that the stop unit can be mounted on the mounting unit and then removed. Furthermore, the units are also adapted to the bracket so that the stop unit can be mounted (and dismounted) on the mounting unit and then rotated into a position where the stop unit will strike the bracket's coupling means when the housing is rotated into engagement with the bracket via the mounting unit. Subsequently, further rotation of the cylindrical housing in relation to the bracket will be prevented by the stop unit. The stop unit is adapted to the mounting unit, the cylindrical housing, and the bracket in such a way that it stops the rotation between the cylindrical housing and the bracket at a very precise location to avoid misalignment. When the stop unit is rotated to abut the mounting tool as shown in Figure 10 and 11 , this ensures that the cylindrical housing is mounted in a very precise manner on the bracket, preventing the operator from inadvertently turning the cylindrical housing out of engagement with the bracket. Instead, they are prevented from turning these units relative to each other when a desired position is achieved. This position will preferably be when the wedges have slid into the openings (as explained above), allowing an operator to easily release the mounting unit from the cylindrical housing by simply rotating it in the opposite direction. In this way, the resilient housing is disengaged from the mounting unit because the cylindrical housing is rotationally locked in this direction due to the locking means, which can be composed of wedges and openings.

As explained, the stop unit is also adapted to the mounting unit so that it can be rotated about the axis 205. The purpose of this feature is that the stop unit can be rotated to an inactive position where it does not block the rotation of the cylindrical housing relative to the bracket. The stop unit is designed in such a way that it does not strike the bracket when the mounting unit is used to release the cylindrical housing from the bracket, with the stop unit rotated to its inactive position. The stop unit is preferably made as a unit that can be rotated between its active and inactive positions, but a skilled person can easily adapt it so that it only has an active position and needs to be removed or inserted into the mounting unit depending on whether the mounting unit is used to insert a cylindrical housing into the bracket (with the stop unit atached) or to remove a cylindrical housing from the bracket, in which case the stop unit is removed from the mounting unit.

In Figure 12, the stop unit is shown in greater detail, and here it can advantageously be equipped with a small handle 206 for easier rotation between its active and inactive positions around the axis 205. The axis and the mounting unit’s hole can be designed so that the stop unit can be taken on and off the mounting unit. However, if the stop unit is mutually adapted to the cylindrical housing to allow it to be rotated between an active and inactive position, the stop unit and mounting unit, in one embodiment, can also be mutually adapted so that the stop unit cannot be removed from the mounting unit.

When a cylindrical housing with an attached stop unit needs to be mounted on a surface such as a ceiling, the operator first connects the cylindrical housing securely to the mounting unit. This is done by coaxially aligning the cylindrical housing and the mounting unit until the front of the cylindrical housing abuts the mounting unit's mounting side. Then, the cylindrical housing is held in place (e.g., by hand) while the mounting unit is rotated in the specific rotational direction around its center axis, thereby coupling the cylindrical housing's mounting means and the mounting unit’s first set of mounting means with a noticeable increase in the second friction coefficient. When the cylindrical housing is coupled with the mounting unit, it is coaxially aligned with the bracket until the front of the cylindrical housing abuts the bracket. Then, the mounting unit, with the cylindrical housing, is rotated in the specific rotational direction until the stop unit prevents further rotation. Afterward, the mounting unit is rotated in the opposite direction, freeing it from the cylindrical housing. If the cylindrical housing needs to be removed from the bracket, the stop unit must naturally be removed or turned to its inactive position from the mounting unit. A stop unit can also be used in other mounting systems (i.e., other than the mounting systems explained in this application) that include a mounting unit capable of reversibly mounting a housing in a bracket by rotating the housing in the bracket. The stop unit (with or without the mounting unit) can therefore be the subject of one or more separate applications.

In Figure 11, three openings/notehes 203a, 203b, 203c are visible. These openings are adapted to the rod 1, as shown in Figure I, among others. The function of these notches will be explained with reference to Figure 13,

In Fig. 13, a cylindrical container (not visible) 401 with a removable lid 402 and transparent side walls 401 is shown. The container is for storing a mounting system, which includes:

• a bracket 4.

• a flexible rod 1 (not visible),

• a mounting unit 2.

• a cylindrical housing 5.

• a flashlight holder 600.

In the center of the container, there is a rod 1 for attachment to a mounting unit 2, which, in turn, is attached to a cylindrical housing 3. The cylindrical housing may also be mounted on a bracket, although this is not clearly evident from Figure 13,

In the center of the container 400 (not visible), there is a gripping part 406 with three grip brackets, 406a, 406b, and 406c (406c not visible), of which only 406a. and 406b are clearly visible in the figure. The three grip brackets are symmetrically positioned with a 120-degree offset. The gripping part is designed with a central opening so that it can be attached to the rod 403, which encloses the flexible rod I (not visible) mounted on the mounting unit 2. The mounting system shown in Figure 13 includes four extension rods, 403, 404, 405, 406, which can optionally be interconnected and then mounted on the rod 403 to extend it by one, two, or three extension rods. Of course, the system can include more or different extension rods, but they are not shown or stored in the container shown in Figure 13, The three extension rods, 403, 404, 405, are adapted to the three grip brackets 406a, 406b, 406c of the gripping part so that they can be "clicked" into engagement with the grip brackets. They are also mutually adapted to the mounting part 2, so they can be clicked into engagement with it through openings 203a, 203b, 203c in it. The opening 203c is not visible in Figure 13. By mounting the three extension rods, 403, 404, 405, in both a gripping part 406 attached to it and in the openings of the mounting part 2, these parts are held together and can be easily lifted out of the container as a single unit when the lid is removed. If the mounting unit 2 is additionally attached to the cylindrical housing, which may optionally be mounted on a bracket, the mounting unit can also be removed from the container as a complete unit. The fact that the components are assembled as shown in the container makes the container structurally much stronger than a similar container with separate components. Figure 13 thus shows a storage system that can function with the mounting systems explained above but can also function independently, making it eligible for separate protection.

A holding system comprising:

• A cylindrical housing with an embedded electronic device;

• A mounting unit for the installation of the cylindrical housing, wherein the mounting unit is designed with two or more openings;

• A rod that can be centrally attached to the mounting unit, allowing the mounting unit to install the cylindrical housing via the rod;

• Two or more extension rods that can be interconnected and extended from the rod, which extension rods are mutually adapted to the openings, allowing the rods to be inserted into the openings so they lie parallel and side by side;

• A central gripping part with one or more grip brackets, the central gripping part being designed with a hole, allowing the gripping part to be mounted on the rod, The two or more grip brackets are mutually adapted to the two or more extension rods, enabling the extension rods to engage with the grip brackets. The system is characterized in that the rod can be mounted on the mounting unit while it is mounted on the cylindrical housing, and simultaneously, o the gripping part is mounted on the rod, and the two or more extension rods are mounted in both the one or more openings and a the one or more grip brackets so that the extension rods lie parallel and side by side.

In one embodiment of this holding system, it is characterized by the system including a container in which the holding system can be inserted. In one embodiment of the hol ding sy stem, the container includes a lid. In one embodiment of the holding system, the container is transparent.

In Figure 14, a flashlight holder is shown that can be attached to the rod 403, as shown in, for example. Figure 13.

The idea behind the flashlight holder is that it can be mounted as needed. For example, if inspections need to be carried out, or fire alarms need to be installed or removed in poorly lit environments.

The flashlight holder 600 is designed with a rod part 605 that has an opening 601 adapted to the rod 403 so that it can be fastened to the rod. In the figure, the opening 601 has an angular shape, but the shape of the opening can be adapted by a skilled person according to the shape of the rod. The flashlight holder also includes a flashlight part 606, and on this part, there is a flashlight holder 602. A bearing 603 is mounted between the flashlight holder 602 and the rod part 605, allowing these parts to rotate relative to each other. The flashlight holder is used optionally and can be atached to the rod so that a flashlight mounted on the flashlight part, and potentially adjusted through the swivelling bearing 603, can illuminate the mounting unit and its surroundings.

In the depicted embodiment, the flashlight holder is designed with a rod part that includes an opening 601 in which the rod 403 is fastened. However, the flashlight bolder can also be designed with a rod part shaped as an insert that can be placed between the rod 403 and the mounting unit 2 or between two extension rods or between the rod 403 and an extension rod. Such insert parts are easy for a skilled person to create and, therefore, will not be further described in this application. The flashlight holder can be attached to all embodiments of the invention mentioned in this application, but it can also be used with any mounting system that includes a rod attached to a mounting unit.

The flashlight holder could, therefore, also become the subject of a separate patent or utility model application.