Device ceiling mounting

Abstract

A device ceiling mount (10) includes a telescopic arm having an adjustable length and a frame (5) attached to a lower end of the telescopic arm. The arm includes a set of slidable coupling members including at least an upper end member (20) and a lower end member (30). All components are slidably coupled to its adjacent components. The upper end member may be attached to a ceiling (15). Means (6, 7) may be attached to the frame. In addition, the device ceiling mount also includes a cable (55) coupled with one end to the lower end member and with another end to an adjustable constant force spring (50) coupled to the upper end member. The gravity acting on the device is counteracted by the force provided by the adjustable constant force spring.

Description

Technical Field

[0001] This utility model relates to a ceiling mounting component for a device. Background Technology

[0002] An example of a device that can be mounted on a ceiling-mounted device is a monitor. Monitors mounted on the ceiling are used when there is no workbench space available (e.g., in a catheterization lab, often referred to as a catheterization room). A catheterization room is an examination room in a hospital or clinic equipped with diagnostic imaging instruments that can be used to visualize arteries and navigate treatment devices within the arteries to their target locations during interventional procedures. During interventional procedures, surgical monitors are used to display X-ray images and other critical inputs required by the physician. This requires attaching a relatively large monitor (e.g., 58'') or several smaller monitors (e.g., 2 × 27'') to a ceiling-mounted device. To allow for monitor height adjustment with minimal effort, motorized monitor ceiling-mounted devices can be used.

[0003] The disadvantage of electrically operated ceiling-mounted devices is their relatively slow vertical movement. Ceiling-mounted devices capable of rapid vertical movement are needed. Utility Model Content

[0004] The purpose of this invention is to provide a ceiling mounting component that can move up and down at a relatively fast speed.

[0005] The objective is achieved by a ceiling mounting device according to one aspect of this utility model.

[0006] The ceiling-mounted device includes a telescopic arm with an upper and a lower component. The upper and lower components are slidably coupled, allowing the arm length to be adjusted according to user needs. When bridging relatively large distances, the telescopic arm may include more components than just the upper and lower components. Each component is slidably coupled to its adjacent or neighboring component. For example, the telescopic arm may have three components: an upper component slidably coupled to a middle component; a middle component slidably coupled to a lower component; and a lower component. The upper component may be attached to the ceiling of the room, and a frame is coupled to the lower component. A device (e.g., a monitor) may be attached to the frame. The monitor's height relative to the user can be adjusted by changing the length of the telescopic arm. To allow the user to easily adjust the length of the telescopic arm with minimal effort, the ceiling-mounted device includes an adjustable constant-force spring that counteracts the weight of the monitor or additional instruments or accessories already attached to the frame. When the telescopic arm length is adjusted, the cable applies a force to an adjustable constant-force spring, which counteracts the weight of the device attached to the frame and keeps the device stationary at the desired location the user wants to move it to. The speed of vertical movement is determined by the user. By using the adjustable constant-force spring (which acts as a counteractor to the weight of the device), the user does not need to exert much force to move the device attached to the frame up and down. The spring force is adjusted according to the weight of the device (e.g., a monitor or additional instrument or accessory attached to the frame). Measurements show that the user can move the frame (and the device attached to the frame) upwards at a maximum speed of 260 mm / s and downwards at a maximum speed of 338 mm / s with one arm. For a motorized ceiling mount, the average upward speed was measured to be approximately 15 mm / s and the average downward speed to be approximately 17 mm / s. The ceiling mount also includes a friction element arranged to provide a predetermined level of resistance to the adjustment of the telescopic arm length. When the length of the telescopic arm is adjusted by moving the frame up or down, the friction element provides a predetermined level of resistance. This provides a "braking force" to stop the telescopic arm from moving up or down when the user stops pushing the frame (and any devices attached to it), and provides a stable balance where the length of the telescopic arm is fixed until an external force from the user pushes the frame up or down with a force greater than a predetermined threshold set by the friction element. The friction element prevents the need to adjust a constant-force spring to maintain static balance when relatively small attachments (e.g., weighing less than 3 kg) are attached to the frame. Examples of attachments that can be attached to the frame include IV stands, waste bins, or cameras.

[0007] The telescopic arm may include one or more intermediate components slidably coupled between an upper component and a lower component. Depending on the ceiling height, the maximum length of the telescopic arm may require three or more components. For example, the telescopic arm may include intermediate components slidably coupled between the upper and lower components. The upper, intermediate, and lower components are linearly aligned relative to each other. For example, when the ceiling mount is arranged vertically, the intermediate components are arranged to slide up and down relative to the upper component attached to the ceiling, while the lower component is arranged to slide up and down relative to the intermediate components.

[0008] In a first embodiment of the ceiling mount according to the independent claim, each component of a set of slidably coupled parts is hollow, thereby creating a hollow, extendable telescopic arm. In this embodiment of the ceiling mount, the telescopic arm is hollow from the upper end component to the lower end component, including any intermediate components that may be included. This allows cables and adjustable constant-force springs to be installed inside the telescopic arm. This provides enhanced safety because the cables are not accidentally touched when the arm is moved up and down.

[0009] In a second embodiment, the ceiling mount of the device further includes a first pulley system for guiding the cable to the adjustable constant force spring. The adjustable constant force spring is positioned outside the upper component. It can be coupled to the outside of the upper component. The first pulley system is coupled to the upper component and positioned inside the upper component. The upper component of the arm has an opening for the cable to pass through to the adjustable constant force spring positioned outside the upper component. This arrangement is advantageous for rooms with low ceiling heights, where it is desirable to move the frame (to which the monitor can be attached) upwards to a relatively small distance from the ceiling.

[0010] In a third embodiment, the ceiling-mounted device further includes a second pulley system coupled to and positioned within the lower component. Before passing through the opening to couple to the adjustable constant-force spring, the cable is coupled to the upper component of the telescopic arm via a first cable end and routed through the second pulley system to the first pulley system. This arrangement provides the advantage of reducing the force that needs to be balanced by the adjustable constant-force spring.

[0011] Each pulley system may include a wheel rotatably mounted in a pulley frame. The cable is coupled to the upper part of the telescopic arm via its first cable end, then routed through the wheel of the second pulley system (coupled to the lower part) and back to the wheel of the first pulley system (coupled to the upper part). Each pulley system may include more than one wheel, for example, two or more wheels. The cable is wound several times between the wheels of the first and second pulley systems before being coupled to the adjustable constant force spring. In the case where each pulley system includes two wheels, the cable is routed to the first wheel of the second pulley system, wound back to the first wheel of the first pulley system, then wound to the second wheel of the second pulley system, and then wound back to the second wheel of the first pulley system before being coupled to the first end of the adjustable constant force spring via its second cable end. The second end of the constant force spring is coupled to the upper part of the telescopic arm. By using pulley systems with more wheels, a portion of the weight of all instruments attached to the frame needs to be balanced by the adjustable constant force spring. For example, when the instrument attached to the frame weighs 180 kg and uses a pulley system with 10 wheels, a constant force spring with a load capacity of 18 kg can be selected.

[0012] In a fourth embodiment of the ceiling-mounted device, a friction element is arranged to provide a predetermined level of resistance to the wheels of either the first or second pulley system as the wheels rotate in response to adjustments in the length of the telescopic arm. Each pulley system includes a wheel rotatably mounted in a pulley frame. In this fourth embodiment, the friction element pushes against the wheels of the first or second pulley system with a predetermined force. When the length of the telescopic arm is adjusted by moving the frame up or down, the friction element provides a predetermined level of resistance to the rotating wheels.

[0013] In a fifth embodiment of the ceiling-mounted device, the telescopic arm includes a pair of slidably coupled components. In this fifth embodiment, the component closest to the frame in the pair of adjacent slidably coupled components includes an additional movable pin arranged to press against the surface of the other component of the pair of adjacent slidably coupled components with a predetermined force. This additional movable pin provides resistance to sliding movement of the one component relative to the other component. In embodiments where the telescopic arm has only a lower and an upper component, the lower component includes an additional movable pin that presses against the surface of the upper component with a predetermined force.

[0014] In the sixth embodiment (which can be combined with any of the previously discussed embodiments), the ceiling mount of the device further includes a safety brake arranged to prevent sliding movement of the lower component relative to the upper component in response to a decrease in cable tension. A decrease in cable tension may be caused by, for example, the breakage of the coupling between the cable and a component of the telescopic arm, the breakage of the coupling between the cable and an adjustable constant-force spring, the breakage of the cable itself, the breakage of the pulley system guiding the cable, or the breakage of the adjustable constant-force spring. The safety brake prevents the frame (on which the device is attached) from falling and impacting an object or person located below the telescopic arm and within a height range from the ceiling (bridged by the telescopic arm of the ceiling mount). When cable tension decreases (e.g., when cable breakage occurs), the safety brake prevents sliding movement of the lower component relative to an adjacent slidably coupled component of the telescopic arm. For example, when the telescopic arm comprises two components, the safety brake prevents sliding movement of the lower component relative to the upper component. When the arm comprises more than a lower and an upper component, the safety brake can be arranged to prevent sliding movement of paired (or per pair) adjacent slidably coupled components relative to each other in response to a decrease in cable tension (e.g., caused by cable breakage). For example, when the arm comprises three components (a lower component, a middle component, and an upper component), the safety brake can be arranged to prevent sliding movement of the lower component relative to the middle component, or the middle component relative to the upper component, or both.

[0015] In a seventh embodiment of the ceiling-mounted device, the component closest to the frame among a pair of adjacent slidably coupled parts includes a movable pin, and the other component of the pair has a toothed surface facing the pin, which is arranged to engage the toothed surface in response to a decrease in cable tension (e.g., caused by cable breakage). In cases where the telescopic arm comprises only an upper and lower component, these components will be a pair of adjacent (or neighboring) components. In cases where the telescopic arm has a pair of slidably coupled parts, the lower component is closest to the frame, and the safety brake includes a movable pin coupled to the lower component. The movable pin is arranged to engage the toothed surface of the upper component in response to a decrease in cable tension.

[0016] When the telescopic boom comprises more components (e.g., three components), the middle component is slidably coupled between the upper and lower components. For three components, there are two pairs of adjacent slidably coupled components: the upper and middle components will be the first pair, and the middle and lower components will be the second pair. A safety brake included in the ceiling mount of the device is arranged to prevent sliding movement of the first, second, or both pairs of slidably coupled components. For each pair (or each pair) of adjacent slidably coupled components, the safety brake may include a movable pin coupled to the component closest to the frame in the pair of adjacent slidably coupled components. The movable pin is arranged to engage the toothed surface of the other component in the pair of adjacent slidably coupled components in response to a decrease in cable tension.

[0017] In an eighth embodiment, the ceiling mount further includes a track that can be attached to the ceiling. The ceiling mount is slidably coupled to the track. This provides the advantage that the user can move the frame and any attachments to the frame horizontally to a desired location via the track.

[0018] In a ninth embodiment, the ceiling mount of the device includes a monitor attached to the frame of the ceiling mount. Attached Figure Description

[0019] To better understand this utility model and to more clearly illustrate how to put it into practice, reference will now be made to the accompanying drawings by way of example only, in which:

[0020] Figure 1 and Figure 2 An example of a ceiling-mounted device is shown, in which the telescopic arm has three parts;

[0021] Figure 3 An example of a ceiling-mounted device including an adjustable constant force spring is shown;

[0022] Figure 4 An example of a ceiling-mounted device including a pulley system is shown;

[0023] Figure 5 An example of a pulley system with friction elements is shown;

[0024] Figure 6 An example of a ceiling-mounted device including additional friction elements is shown;

[0025] Figure 7 An example of a ceiling-mounted device including two pulley systems is shown;

[0026] Figure 8An example of cable routing between two pulley systems is shown;

[0027] Figure 9 An example of a safety brake included in a ceiling-mounted unit is shown;

[0028] Figure 10 and Figure 11 Details of an example of a safety brake are shown;

[0029] Figure 12 An example of an activated safety brake in a ceiling-mounted unit is shown;

[0030] Figure 13 An example of a safety brake in a telescopic boom with three components is shown. Detailed Implementation

[0031] The present invention will be described with reference to the accompanying drawings.

[0032] While the detailed description and specific examples indicate exemplary embodiments of the ceiling-mounted device, these descriptions and examples are for illustrative purposes only and are not intended to limit the scope of the invention. These and other features, aspects, and advantages of the ceiling-mounted device and its embodiments will be better understood from the following description, the appended claims, and the accompanying drawings. These drawings are merely schematic and are not drawn to scale. Furthermore, in some drawings, only those features necessary for discussing the specific function of embodiments of the ceiling-mounted device (e.g., a safety brake) are shown. It should also be understood that the same reference numerals are used throughout all the drawings to indicate the same or similar parts.

[0033] In clinical settings such as interventional X-ray rooms, it may be necessary to mount the monitor to the ceiling using ceiling-mounted devices. For optimal viewing, the monitor's position should be adjustable. Figure 1 and Figure 2 An exemplary embodiment of the ceiling mount 10 is shown, wherein the telescopic arm has three components. The ceiling mount includes a frame 5 attached to the lower end of the telescopic arm, which has an adjustable length. The telescopic arm includes three components: an upper component 20, a lower component 30, and an intermediate component 25 between the upper and lower components. Figure 1 In the middle, the arm is at its maximum length, while Figure 2In this configuration, the arm is at its minimum length. The user can adjust the arm's length by pushing the frame 5, coupled to the lower component, upwards or downwards. When adjusting the arm's length, the components of the arm will slide relative to each other: sliding in relative to each other when the frame is moved toward the ceiling 15; or sliding out relative to each other when the frame is pushed downwards. The telescopic arm may have more than one intermediate component, or none at all. When no intermediate component is present, the upper component 20 and the lower component 30 will be adjacent (or neighboring) components slidably coupled to each other. Devices (such as a monitor 6 or measuring equipment, or other instruments or accessories 7) may be attached to the frame 5. Figure 2 As shown, the upper component 20 can be rotatably coupled to the track 16 via a pivot element 17, which can be attached to the ceiling. The pivot element 17 allows the ceiling mount and thus the frame included in the ceiling mount to rotate, for example, to obtain a better viewing angle relative to the monitor 6 attached to the frame. Furthermore, the user can slide the ceiling mount on the track 16 to improve the user's view of the monitor.

[0034] The ceiling-mounted device also includes an adjustable constant force spring 50, which is coupled to the upper component 20. For example... Figure 3 As shown, the constant force spring can be positioned inside the arm and coupled to the upper part 20, or as... Figure 1 and 2 As shown, the constant force spring can be positioned outside the arm and coupled to the upper component. In rooms with relatively low ceiling heights, this is advantageous because positioning the adjustable constant force spring outside the telescopic arm allows the frame 5 to be positioned at a smaller distance from the ceiling 15, such as... Figure 2 This is a schematic depiction. The adjustable constant force of the spring acts as a counterforce against the gravity acting on frame 5 and all instruments attached to it. In other words, the constant force spring provides a counterforce against the weight of all instruments coupled to the frame. The weight of the instruments or accessories attached to frame 5 may change when the user changes them. Adjustment of the adjustable constant force spring may be necessary to maintain static balance, where the length of the telescopic arm remains constant when the user does not move frame 5 upwards or downwards.

[0035] Adjustable constant force springs are known in the prior art. For example, an adjustable constant force spring may comprise a prestressed strip of spring material forming a coil of substantially constant radius on a drum, such as... Figure 3 It is depicted schematically. Figure 3 Further details of an exemplary embodiment of the device ceiling mount 10 are shown, and are used to explain how the constant force spring acts as a counterforce. Figure 3The ceiling mount 10 of the device shown has a telescopic arm comprising a lower part 30 (to which the frame 5 is attached) and an upper part 20 (coupled to the ceiling 15). Parts 30 and 20 of the arm are hollow. A cable 55 (coupled to the lower part 30 via its first cable end 56) is routed to the upper part and coupled to the second spring end 58 of an adjustable constant-force spring via its second cable end 57. The first spring end 59 is coupled to the upper part. The constant force of the spring 50 should be adjusted to a value at which the length of the arm does not change unless the user pushes or pulls the frame 5 upwards or downwards. Upward or downward movement requires little effort from the user because the constant force of the constant-force spring acts as a counterforce against the weight of the monitor 6 and instruments or accessories 7 attached to the frame 5. The gravity acting on the device is counteracted in both value and direction by the force provided by the adjustable constant-force spring via the cable 55.

[0036] Figure 4 An exemplary embodiment of a device ceiling mount 10 including a first pulley system 45 is shown. The first pulley system includes wheels 46 rotatably mounted in a pulley frame 49. The pulley frame is coupled to the interior of an upper component 20. Wheels 46 of the pulley system guide cables 55 through an opening 51 in the upper component 20 to an adjustable constant force spring 50. The cables are coupled to a lower component 30 via a first cable end 56 and to a second spring end of the constant force spring 59 via a second cable end 49. The adjustable constant force spring 50 is positioned outside the telescopic arm so that the monitor 6 can be positioned closer to the ceiling 15. For safety, it is preferable to place the cables and the first pulley system 45 inside the telescopic arm so that they are not touched. Additionally, the device ceiling mount may include a friction element 41 that acts as a brake on the rotating wheels. This will... Figure 5 A more detailed explanation follows.

[0037] Figure 5An exemplary embodiment of a pulley system with friction element 41 is shown. Friction element 41 pushes one or more wheels 46 of a first pulley system 45 with a predetermined force. Friction element 41 is used to enable the telescopic arm to reach a stable rest position or static balance more quickly after the user has moved the telescopic arm up or down. Friction element also prevents loss of static balance due to tolerances in the mechanical components of the monitor ceiling mount. Friction element also serves to provide a predetermined weight range for all instruments attached to the frame, for which static balance will be maintained. This prevents loss of static balance in the event of minor changes in the weight of the attached instruments or accessories (e.g., by adding cables to the measuring equipment attached to the frame). For example, the predetermined force of friction element 41 is tailored to achieve static balance in the weight range of 180 kg to 185 kg for the total weight of the monitor and instruments attached to frame 5. Friction element may act on one or more wheels of the pulley system. Alternatively, the pulley system may have additional wheels not used for guiding cables 55, which friction element pushes with a predetermined force. The friction element may include a compression spring and a brake pad. A predetermined force can be set by using the compression spring 42 to push against the pad of the friction element 41 against one or more wheels 46. When the user adjusts the length of the telescopic arm, the predetermined force generates a predetermined resistance to the rotating wheels.

[0038] Figure 6 A portion of an exemplary embodiment of a monitor ceiling mount with an additional friction element 33 is shown. The additional friction element 33 has the characteristics discussed above. Figure 5 The friction element 41 in the middle has the same function, namely, to create a weight range for achieving static balance. The constant force spring may have been adjusted to have static balance for a total weight of 180 kg for attached instruments, monitors, and accessories. To prevent the need to adjust the constant force spring when adding relatively small accessories (e.g., an IV stand), friction element 33 is added to maintain balance, as long as the weight variation of the total weight is limited to, for example, a maximum of 5 kg. The component 30 closest to the frame among the paired adjacent slidably coupled components 30, 20 ( Figure 6 (Not shown) includes an additional movable pin 33, which includes a compression spring 32 and a pad 31. The movable pin acts as a friction element and is arranged to press or push the pad 31 with a predetermined force, which is determined by the compression spring abutting against the surface of another component 20 in a pair of adjacent slidably coupled components. The additional movable pin 33 is arranged to provide resistance to sliding movement of the two adjacent components relative to each other. The compression spring 32 can be used to provide the predetermined force, for example, as... Figure 1As shown, the telescopic arm of the ceiling-mounted device can have an upper component 20, a middle component 25, and a lower component 30. The paired adjacent slidable coupling components can be the lower component and the middle component. In this case, the lower component is closest to the frame 5 and includes an additional movable pin that presses against the surface of the middle component with a predetermined force. Alternatively, the middle component and the upper component are a pair of adjacent slidable coupling components. In this case, the middle component is closest to the frame and includes a movable pin that presses against the surface of the upper component facing the movable pin with a predetermined force.

[0039] Figure 7 An exemplary embodiment of a ceiling mount 10 comprising a first pulley system 45 and a second pulley system 40 is shown. The first pulley system 45 is coupled to an upper component 20, and the second pulley system 40 is coupled to a lower component 30. Each pulley system has at least one wheel 46, 47 rotatably mounted in pulley frames 49, 48. A cable 55 is coupled to the pulley frame 49 via a first cable end 56, and the pulley frame 49 is coupled to the upper component 20. Alternatively, the first cable end may be connected to the upper component. The cable is routed to the wheel 47 of the second pulley system 40 and returns from there to the wheel 46 of the first pulley system 45, and then via an opening 51 in the upper component, such that a telescopic arm is coupled to the second spring end 58 of an adjustable constant force spring 50 via the second cable end 57. The first spring end 59 is coupled to the upper component. When the length of the telescopic arm is adjusted, the wheels of the pulley systems rotate as the cable moves under the guidance of the wheels. For safety reasons, it is preferable to place the cable 55 and pulley systems 45, 40 inside the telescopic arm so that they are not accidentally touched by the user. The first pulley system 45 and the second pulley system 40 may include two or more wheels 46, 47 to guide the cable 55 from the upper part 20 to the constant force spring 50 via the second pulley system and the first pulley system, whereby the cable 55 is wound once or multiple times between the first and second pulley systems. For example, when each pulley system is equipped with two wheels, the cable coupled to the upper part 20 via the first cable end 56 can be routed from the upper part to the first wheel of the second pulley system 40, and back to the first wheel of the first pulley system 45, then routed to the second wheel of the second pulley system, and from there back to the second wheel of the first pulley system, after which the second cable end 57 is connected to the second spring end 58 of the constant force spring. The advantage of this arrangement of the pulley systems is that a portion of the weight of all instruments attached to the frame 5 needs to be balanced by the adjustable constant force spring, which provides a cost advantage. For example, when the instrument attached to the frame weighs 180 kg and a pulley system with 10 wheels is used, a constant force spring with a load capacity of 18 kg can be selected.

[0040] Figure 8 An exemplary embodiment of cabling between two pulley systems 40, 45 mounted in a telescopic arm is shown. In an embodiment of the device ceiling mount, each pulley system 45, 40 includes three wheels 46, 47, as shown... Figure 8 As shown. Cable 55 is coupled to the pulley frame 49 of the first pulley system 45 via a first cable end, and is wired to the first wheel of the second pulley system 40, loops back to the first wheel of the first pulley system 45, then loops back to the second wheel of the second pulley system 40, loops back to the second wheel of the first pulley system 45, then loops back to the third wheel of the second pulley system 40, and from there loops back to the third wheel of the first pulley system to be connected to an adjustable constant force spring (…). Figure 8 (Not shown in the image). The use of the first pulley system 45 and the second pulley system 40 reduces the force applied to the spring. Since the weight of the instrument attached to the frame would be 180 kg or more, the force that would need to be counteracted by the adjustable constant force spring when the pulley system is not used would be quite high, and this would increase the cost of the spring.

[0041] Figure 9 An exemplary embodiment of a safety brake 70 included in a ceiling-mounted device is shown. The safety brake 70 prevents impact from objects or persons positioned below the frame in the event that the tension of the cable 55 drops due to unforeseen causes, such as breakage of the cable itself, breakage of the coupling between the cable and the upper or lower end component, breakage of the coupling between the cable and the adjustable constant force spring, breakage of the pulley system guiding the cable, or breakage of the constant force spring itself. The constant force spring acts on the cable, keeping the cable 55 under tension. Breakage of the cable 55, the pulley system 45, or the constant force spring 50 causes a drop in cable tension. When cable tension is lost, the safety brake 70 prevents sliding movement of the lower end component 30 of the telescopic arm relative to the upper end component 20.

[0042] The safety brake includes a movable pin 73 coupled to the lower end component 30 of the telescopic arm. When the tension of the cable suddenly drops (e.g., due to the breakage of cable 55), the pin is pushed against the toothed surface 60 inside the upper end component 20. The pin engages with the toothed surface 60 facing the pin and is "locked" between the two teeth, preventing the lower end component 30 from sliding out of the upper end component 20.

[0043] Figure 10 and Figure 11 Details of an exemplary embodiment of the safety brake using the movable pin 73 are shown, now in top view rather than top view. Figure 9 The side view shown. Figure 10An embodiment of a movable pin 73 is shown, which has a "loop" at one end 74 through which cable 55 is routed. Figure 10 In this context, the "ring" is rectangular, and the cable 55 is routed twice through the opening. When using a pulley system with multiple wheels, the cable 55 can be routed several times between the lower and upper components, as previously discussed. Figure 8 As explained at the time. When cable 55 breaks, pin 73 is released, and spring 71 forces the other end 76 of the pin toward the toothed surface 60, as... Figure 9 and Figure 12 As shown. Figure 11 Another embodiment of the movable pin 73 is shown, one end 74 of which has a wheel. Cable 55 is positioned between the wheel and the telescopic arm (…). Figure 11 Between the lower end component 30 (not shown in the image). When the cable breaks, the spring 71 forces the pin 73 to move toward the lower end component 30. The other end 76 of the pin faces toward the toothed surface 60 of the upper end component (not shown in the image). Figure 10 and Figure 11 (Not shown) Move (the toothed surface faces the other end 76 of the pin 73) to prevent the lower part 30 from sliding out of the upper part 20.

[0044] Figure 12 An exemplary embodiment of the activated safety brake in the ceiling-mounted device is shown. Cable 55 breaks, releasing movable pin 73. The compressed spring 71 forces the other end 76 of the pin toward the toothed surface 60, where it will be engaged between two adjacent teeth, preventing the lower end part 30 from sliding out of the upper end part 20.

[0045] Figure 13 An exemplary embodiment of a safety brake in a telescopic boom is shown, the boom having three components: a lower component 30, a middle component 25, and an upper component 20. Each component is slidably coupled to its adjacent (or neighboring) component. In this telescopic boom, there are two pairs of adjacent components: the lower component 30 and the middle component 25 are a first pair of adjacent components, while the middle component 25 and the upper component 20 are a second pair of adjacent components. The safety brake is arranged to prevent sliding movement of the components of the paired adjacent slidably coupled components relative to each other in response to a decrease in cable tension (e.g., caused by the breakage of cable 55). When, for example, cable 55 breaks, the lower component 30 is prevented from sliding out of the middle component 25, and the middle component 25 is prevented from sliding out of the upper component 20.

[0046] exist Figure 13In the first pair of adjacent slidable coupling members 30, 25, the first member 30 closest to the frame 5 includes a first movable pin 67, and the second member 25 of the first pair of adjacent slidable coupling members has a first toothed surface 61 on its inner surface facing the first pin. The first pin is arranged to engage with the toothed surface 61 in response to a decrease in cable tension (e.g., caused by the breakage of the cable 55) to prevent the first member 30 of the first pair of adjacent coupling members from sliding out of the second member 25 of the first pair of adjacent coupling members. Additionally, the first member 25 of the second pair of adjacent slidable coupling members 25, 20, closest to the frame 5 includes a second movable pin 68, and the second member 20 of the second pair of adjacent slidable coupling members has a second toothed surface 62 on its inner surface facing the second pin 68. The second pin is arranged to engage with the second toothed surface 62 in response to a decrease in cable tension (e.g., caused by the breakage of the cable 55) to prevent the first member 25 of the second pair of adjacent slidable coupling members from sliding out of the second member 20 of the second pair of adjacent slidable coupling members.

[0047] Although the present invention has been described in detail in the accompanying drawings and the foregoing description, such description is to be considered illustrative or exemplary, and not restrictive. Features of the discussed embodiments may be combined. For example, Figure 9 The safety brakes discussed and shown in the text can be used with Figure 3 , Figure 4 or Figure 7 The ceiling-mounted device discussed and shown is combined with the equipment. As another example, it acts on... Figure 5 The friction element 41 of the wheel 46 of the first pulley system 45 shown can also be combined with the second pulley system 40 and act on... Figure 7 The wheel 47 of the second pulley system shown is... Figure 8 The pulley system shown is arranged with either wheel 46 or 47. As another example, Figure 6 The additional friction element 33 shown can be used for Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 9 , Figure 12 or Figure 13 The device shown is a ceiling-mounted component.

Claims

1. A ceiling-mounted device, comprising: A telescopic arm having an adjustable length, the arm including a set of slidably coupled components, the set of slidably coupled components including at least an upper component and a lower component, the upper component being slidably coupled to the lower component of the arm, the upper component being being attached to a ceiling; A frame, which is coupled to the lower end component, is arranged for attaching the device to the frame; A cable having a first cable end and a second cable end, the first cable end being coupled to the lower end component; Friction elements are arranged to provide a predetermined level of resistance to the adjustment of the length of the telescopic arm. An adjustable constant force spring has a first spring end coupled to the upper component and a second spring end coupled to the second cable end, wherein the force provided by the adjustable constant force spring counteracts the gravity acting on the device.

2. The ceiling mounting component of the device according to claim 1, wherein, Each of the set of slidably coupled components is hollow, thereby creating a hollow, extendable telescopic arm, wherein the cable is routed inside the telescopic arm.

3. The ceiling mounting component of the device according to claim 2, wherein, The ceiling-mounted device also includes a first pulley system for guiding the cable to the adjustable constant force spring. The first pulley system is coupled to the upper part and positioned inside the upper part, wherein the upper part of the arm has an opening for allowing the cable to pass through to the adjustable constant force spring positioned outside the upper part.

4. The ceiling mounting component of the device according to claim 3, wherein, The ceiling-mounted device also includes a second pulley system coupled to and positioned inside the lower component, wherein the cable is coupled to the upper component of the telescopic arm via the first cable end before passing through the opening to couple to the adjustable constant force spring, and is wired to the first pulley system via the second pulley system.

5. The ceiling mounting component of the device according to claim 3 or 4, wherein, The pulley system includes wheels rotatably mounted in a frame, and the friction element is arranged to provide a predetermined level of resistance to the wheels when the wheels rotate in response to adjustments in the length of the telescopic arm.

6. The ceiling-mounted device according to any one of claims 1 to 4, wherein, The friction element includes an additional movable pin, and the set of slidable coupling components includes a pair of adjacent slidable coupling components. The component closest to the frame in the pair of adjacent slidable coupling components includes the additional movable pin, which is arranged to press against the surface of the other component in the pair of adjacent slidable coupling components with a predetermined force to provide resistance to the sliding movement of the one component relative to the other component.

7. The ceiling-mounted device according to any one of claims 1 to 4, wherein, The ceiling-mounted component of the device includes a safety brake arranged to prevent sliding movement of the lower component relative to the upper component in response to a decrease in cable tension.

8. The ceiling mounting component of the device according to claim 7, wherein, The safety brake is arranged to prevent sliding movement of the pair of adjacent slidably coupled components relative to each other in response to the decrease in cable tension.

9. The ceiling mounting component of the device according to claim 8, wherein, The component closest to the frame in the pair of adjacent slidable coupling components includes a movable pin, and the other component in the pair of adjacent slidable coupling components has a toothed surface facing the pin, the pin being arranged to engage the toothed surface in response to the decrease in cable tension.

10. The ceiling-mounted device according to any one of claims 1 to 4, wherein, The ceiling mounting component of the device includes a track that can be attached to the ceiling.

11. The ceiling-mounted device according to any one of claims 1 to 4, wherein, The ceiling mount of the device also includes a monitor, which is attached to the frame of the ceiling mount.

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