TWM557797U - Lifting device - Google Patents

Abstract

An object of the present invention is to provide a lifting device for carrying a display, the lifting device having a thinned appearance, and supporting the display by a plurality of constant force springs, supporting the working surface monitor.

Description

Lifting device

The present invention relates to a lifting device, and more particularly to a lifting device having an ultra-thin bracket.

A conventional lifting device, such as the display lifting device disclosed in Taiwan's new patent M482023, includes a support frame, a limit seat, a carrier, a plurality of fasteners, a plurality of fixed force members, a slider, and a chute, etc. The force-fixing members are juxtaposed to the left and right, and the rails are disposed on the rails on both sides of the force-applying member, so that the width of the overall lifting device is large in the lateral direction, which is difficult to meet the trend of the recent popular thinning.

In view of this, the present invention provides a novel lifting device having a thinned structure, which has great demand and development potential in this industry.

An object of the present invention is to provide a lifting device for carrying a display, the lifting device has a thinned structure, and supports a bearing capacity of the display by a plurality of constant force springs, and supports the working surface monitor.

In order to achieve the above object, the present invention discloses a lifting device for carrying a display on a working surface, the lifting device includes a chassis, a bracket disposed on the chassis, and having an accommodation space and at least one length a styling opening, the accommodating space is in communication with the elongated opening; a sliding rail group is disposed in the accommodating space; a pulley is slidably disposed on the sliding rail group, and a part of the trolley is opened by the elongated opening a first direction extending to the outside of the bracket to connect a carrier plate; and at least a force spring comprising a free end and a winding portion fixed to the bracket or the trolley, the winding portion corresponding to the free The end is disposed on the trolley or the bracket. Wherein, when an external force is applied to the trolley such that the trolley slides between a highest position and a lowest position, the free end or the winding portion fixed to the pulley moves along with the pulley, thereby changing the A constant force spring is distributed between the free end and the length of the winding portion, and the constant force spring constantly provides an elastic force so that the trolley can be stopped between the lowest position and the highest position.

In a preferred embodiment, the bracket has two opposite side panels, a rear panel, and a front panel, wherein the side panel, the rear panel, and the front panel define the receiving space, and the elongated opening Formed on the front panel.

In a preferred embodiment, the set of slide rails comprises two slide rails, and the slide rails are fixed to the two side plates at intervals.

In a preferred embodiment, the constant force spring is interposed between the pulley and the rear plate, and the constant force springs are vertically aligned with each other, such as the axis of the winding portion of the two constant force springs. The connection of the core is perpendicular to the working surface, and the winding axis of the winding portion of the constant force spring is perpendicular to the first direction.

In a preferred embodiment, the free end of the force spring is locked to the pulley, and the winding portion is fixed to the rear plate of the bracket. Wherein, the rear plate may further comprise at least one fixing seat on which the winding portion of the constant force spring is disposed.

In a preferred embodiment, the free end of the force spring is locked to the rear plate of the bracket, and the winding portion is fixed to the pulley. The trolley may further include at least one fixing seat on which the winding portion of the constant force spring is disposed.

In a preferred embodiment, the bracket has a backing plate and a casing, and the elongated opening is formed on the casing, wherein the backing plate and the casing surround the defining space.

In a preferred embodiment, the slide rail set includes two slide rails, and the slide rails are correspondingly disposed on the backboard, and the free end of the constant force spring is locked on the back panel of the bracket. And the winding portion is disposed on the trolley.

In a preferred embodiment, the constant force spring is interposed between the pulley and the back plate, and the constant force springs are juxtaposed in pairs and stacked one above another, the winding portion of the constant force spring The winding axis is parallel to the first direction.

In a preferred embodiment, the backing plate further includes at least one rib for locking the free end of the constant force spring thereon. And the trolley further comprises at least one fixing seat on which the winding portion of the constant force spring is disposed.

The lifting device provided by the present invention is simple in structure, small in size, and has a thin structure, conforms to the user's requirement for simple structure, and provides support force enough to withstand the weight of the display, and has a lifting function.

The above objects, technical features, and advantages will be more apparent from the following description.

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a perspective view of a lifting device 1000 according to an embodiment of the present invention, and FIG. 2 is a schematic exploded view of the lifting device 1000 . The lifting device 1000 is used for carrying a display on a working surface, and mainly comprises a chassis 1, a bracket 2, a slide group 3, a pulley 4, two fixed force springs 5, and a carrier plate 6.

As described above, the bracket 2 is disposed on the chassis 1 and includes two opposite side plates 21, a rear plate 22, a front plate 23, an elongated opening 24, an accommodating space 25, and a casing 26. . The side panel 21 , the rear panel 22 , and the front panel 23 define the accommodating space 25 . The elongated opening 24 is formed on the front panel 23 , and the accommodating space 25 communicates with the elongated opening 24 . The outer casing 26 covers the side panels 21 and the rear panel 22.

The slide rail group 3 is disposed in the accommodating space 25 of the bracket 2, and includes two slide rails 31. The slide rails 31 are respectively fixed on the side panel 21, and the trolley 4 is slidably disposed on the slide rail group. 3, can slide up and down along the slide rail group 3, the trolley 4 extends to the outside of the bracket 2 by the elongated opening 24 in a first direction D1 to connect the carrier board 6, and the display (not shown) The display is mounted on the carrier plate 6. The trolley 4 further includes two fixing seats 41 for fixing by the constant force spring 5.

The force-preserving springs 5 each include a free end 51 and a winding portion 52. The free ends 51 are respectively locked to the rear plate 22 of the bracket 2 by a screw 53, and the winding portion 52 is It is disposed on the fixing base 41. The fixed force spring 5 is interposed between the trolley 4 and the rear plate 22 of the bracket 2, and the winding axis A1 of the winding portion 52 of the constant force spring 5 is perpendicular to the first direction D1. The two constant force springs 5 are vertically aligned with each other. In detail, the line connecting the axes of the winding portions 52 of the two fixed force springs 5 is perpendicular to the working surface.

Next, the cooperation between the components when the trolley 4 (that is, the display) is adjusted from the highest position toward the lowest position will be described. Please refer to the cross-sectional view of the lifting device 1000 shown in FIG. When an external force is applied to the trolley 4 at the highest position shown in FIG. 3, the trolley 4 slides down the rail group 3, and the winding portion 52 of the constant force spring 5 is moved downward together. Thereby, the length distribution of the constant force spring 5 at the free end 51 and the winding portion 52 is gradually changed, in which case the length of the fixed force spring 5 distributed to the free end 51 is increased, and The length assigned to the winding portion 52 is reduced until the pulley 4 reaches the lowest position as shown in Fig. 4, and the constant force springs 5 each constantly provide an elastic force. When the external force is removed, the elastic force of the constant force spring 5 and the weight of the pulley 4, the carrier plate 6, and the display (not shown) reach a force balance (here, the friction is ignored), so that the trolley 4 Can be stopped at any height between the highest position and the lowest position. Conversely, when an external force is applied to the trolley 4 at the lowest position and the trolley 4 is slid upward, the trolley 4 drives the winding portion 52 of the constant force spring 5 to move upward together, and the fixed The length of the force spring 5 distributed to the free end 51 is gradually decreased, and the length allocated to the winding portion 52 is increased. Similarly, when the external force is removed, the force balance state is restored, so that the trolley 4 can be stopped or stopped at the highest position.

Furthermore, FIG. 5 illustrates a cross-sectional view of another embodiment of the lifting device 2000 in the present invention, the structure of which is substantially the same as that of the lifting device 1000 described above, but differs in the manner in which the constant-force spring 5 is disposed. In this embodiment, the rear plate 22 further includes two fixing seats 221, and the free ends 51 of the constant force springs 5 are respectively locked to the pulley 4 by a screw 53, and the The winding portion 52 is provided on the fixing seat 221 of the rear plate 22 of the bracket 2.

When the pulley 4 (ie, the display) is adjusted from the highest position toward its lowest position, the cooperation between the components is the case. Please refer to the cross-sectional view of the lifting module 2000 illustrated in FIGS. 5 and 6 . When an external force is applied to the trolley 4 located at the highest position shown in FIG. 5, the trolley 4 also slides down the rail 3, thereby pulling the free end 51 of the constant force spring 5, so that the predetermined The length of the force spring 5 is varied between the free end 51 and the winding portion 52. In this case, the length of the fixed force spring 5 distributed to the free end 51 is increased, and the winding is distributed to the winding. The length of the portion 52 is reduced until the trolley 4 reaches the lowest position shown in Fig. 6, and the constant force springs 5 are each constantly providing an elastic force. When the external force is removed, the elastic force of the constant force spring 5 and the weight of the pulley 4, the carrier plate 6, and the display (not shown) reach a force balance (here, the friction is ignored), so that the trolley 4 Can be stopped at any height between the highest position and the lowest position. On the contrary, when an external force is applied to the trolley 4 at the lowest position, the winding portion 52 of the constant force spring 5 is driven to move upward together, and the constant force spring 5 is distributed to the free end 51. As the length is gradually decreased, the length assigned to the winding portion 52 is increased, and similarly, when the external force is removed, the force balance state is restored, so that the trolley 4 can be stopped or stopped at the highest position.

Further, in the above-described lifting devices 1000 and 2000, the number of the constant force springs 5 is not limited to two. For example, one or three or more constant force springs 5 may be used, depending on the weight of the display of the mounted trolley 4 And at the same time increase the number of fixing seats 41. In the present embodiment, in the state of the plurality of constant force springs 5, in order to achieve the effect of thinning, it is necessary to stack them vertically in the extending direction of the holder 2.

In the above embodiment, the width of the bracket 2 can be greatly reduced to meet the requirements for thinning of the bracket.

Please refer to FIG. 7 and FIG. 8. FIG. 7 is a perspective view of the lifting device 3000 according to another embodiment of the present invention, and FIG. 8 is a perspective exploded view of the lifting device 3000. The lifting device 3000 is also used to carry a display on a working surface, and mainly comprises a chassis 1, a bracket 2, a slide rail group 3, a trolley 4, four fixed force springs 5, and a carrier plate 6.

The bracket 2 is disposed on the chassis 1 and includes a back plate 27, a casing 28, two elongated openings 24, and an accommodating space 25. The accommodating space 25 is defined by the back plate 27 and the housing 28 . The elongated opening 24 is formed on the housing 28 , and the accommodating space 25 communicates with the elongated opening 24 . In addition, the back plate 27 has two ribs 271 (please refer to FIG. 9) for fixing the constant force spring 5.

The slide rail group 3 also includes two slide rails 31 correspondingly fixed on two sides of the housing 28, and the trolley 4 is slidably disposed on the slide rail group 3 to slide up and down along the slide rail group 3 . The trolley 4 extends to the outside of the bracket 2 in a first direction D1 by the elongated opening 24 to receive the carrier plate 6. The display (not shown) is mounted on the carrier plate 6. The trolley 4 further includes two fixing seats 41 for fixing by the constant force spring 5.

The fixed force springs 5 each include a free end 51 and a winding portion 52 respectively locked to the rib 271 on the back plate 27 (please refer to FIG. 9). The winding portion 52 is disposed on the fixing base 41. As shown in FIG. 8, the fixing bases 41 each include two recessed portions 411, and each of the recessed portions 411 is provided with a winding portion 52 of a constant force spring 5, that is, the fixed-force spring 5 is two One set has its winding portion 52 disposed on a fixed seat 41. In detail, the constant force spring 5 is interposed between the trolley 4 and the back plate 27, and the fixed force springs 5 are arranged side by side in a parallel arrangement. Further, the winding axis A1' of the winding portion 52 of the constant force spring 5 is parallel to the first direction D1.

Next, the cooperation between the components when the display is adjusted from the highest position toward its lowest position will be described. Referring to the schematic diagram shown in FIG. 9, when an external force is applied to the trolley 4 located at the highest position shown in FIG. 9, the trolley 4 slides down the rail set 3, thereby driving the force. The winding portion 52 of the spring 5 moves downward together. Similarly, the length of the fixed force spring 5 distributed to the free end 51 is increased, and the length allocated to the winding portion 52 is decreased until the pulley 4 reaches the lowest position shown in FIG. The force springs 5 each provide an elastic force. When the external force is removed, the elastic force of the constant force spring 5, and the weight of the pulley 4, the carrier plate 6, and the display (not shown) reach a balance of force (here, the friction is ignored), so that the pulley 4 Can stop at any height between the highest position and the lowest position. Conversely, when an external force is applied to the trolley 4 at the lowest position and the trolley 4 is slid upward, the trolley 4 drives the winding portion 52 of the constant force spring 5 to move upward together. Similarly, when the external force is removed, the force balance state is restored, so that the trolley 4 can be stopped or stopped at the highest position.

In addition, please refer to the lifting device 4000 shown in FIG. 11 , which is substantially the same as the lifting device 3000 described above, except that the rib 271 on the back plate 27 is disposed on the back plate 27 . The central portion, and the number thereof is one, and the free end 51 of the constant force spring 5 is locked to the rib 271, so that the locking position of the free end 51 of the constant force spring 5 is close to the center of the back plate 27. In the present embodiment, the lifting device 4000 includes four fixing seats 41 for respectively being provided for the winding portion 52 of each of the force springs 5. When the display mounted on the lifting device 4000 is adjusted from the highest position toward the lowest position, the cooperation between the components is substantially the same as that of the lifting device 3000, and FIG. 11 shows the state of the slider at the highest position. Similarly, FIG. 12 illustrates the state of the trolley at the lowest position, and the trolley 4 can be stopped between the highest position and the lowest position.

In addition, in the above-mentioned lifting devices 3000 and 4000, the number of the constant force springs 5 is not limited to four. For example, one to a plurality of constant force springs may be used, depending on the weight of the mounted pulley and the display, and simultaneously increased. The number of mounts 41. In the present embodiment, in the state of a plurality of constant force springs, in order to achieve the effect of thinning, it is necessary to stack them up and down or left and right along the extending direction of the bracket 2.

The lifting device provided by the present invention has a simple structure, and the user can adjust the display to the required height, and has a thinner appearance, which can provide a new choice for the user to achieve the user's thin lifting device. Structural requirements.

1000, 2000, 3000, 4000‧‧‧ lifting devices
1‧‧‧Chassis
2‧‧‧ bracket
21‧‧‧ side panels
22‧‧‧ Back panel
23‧‧‧front board
24‧‧‧Long opening
25‧‧‧ accommodating space
26‧‧‧Shell
27‧‧‧ Backplane
271‧‧‧ rib
28‧‧‧Shell
3‧‧‧slide group
31‧‧‧Slide rails
4‧‧‧ tackle
41, 221‧‧‧ fixed seat
411‧‧‧ recess
5‧‧‧ Constant force spring
51‧‧‧Free end
52‧‧‧Winding Department
53‧‧‧ screws
6‧‧‧Loading board
A1, A1'‧‧‧ winding axis
D1‧‧‧ first direction

1 is a perspective view of a lifting device according to an embodiment of the present invention. 2 is a schematic exploded view of a lifting device according to an embodiment of the present invention. Fig. 3 is a cross-sectional view showing a lifting device of an embodiment of the present invention. Fig. 4 is a cross-sectional view showing the operation of the lifting device of an embodiment of the present invention. Figure 5 is a cross-sectional view of another embodiment of the lifting device of the present invention. Fig. 6 is a cross-sectional view showing the operation of the lifting device of another embodiment of the present invention. Fig. 7 is a perspective view showing a lifting device according to still another embodiment of the present invention. FIG. 8 is a schematic exploded view of a lifting device according to still another embodiment of the present invention. Fig. 9 is a cross-sectional view showing a lifting device according to still another embodiment of the present invention. Fig. 10 is a cross-sectional view showing the operation of the lifting and lowering decoration according to still another embodiment of the present invention. Figure 11 is a cross-sectional view showing a lifting device of still another embodiment of the present invention. Fig. 12 is a cross-sectional view showing the operation of the lifting device of still another embodiment of the present invention.

Claims (13)

A lifting device for carrying a display on a working surface, the lifting device comprising: a chassis; a bracket disposed on the chassis and having an accommodating space and at least one elongated opening, the accommodating space and The elongated opening is connected; a slide rail group is disposed in the accommodating space; a pulley is slidably disposed on the slide rail group, and the trolley extends to the outside of the bracket in a first direction by the elongated opening Connecting a carrier plate; and at least a force spring comprising a free end and a winding portion fixed to the bracket or the trolley, and the winding portion is disposed on the trolley or the bracket corresponding to the free end Wherein, when an external force is applied to the trolley so that the trolley slides between a highest position and a lowest position, the free end or the winding portion fixed to the pulley moves along with the pulley, and further The length of the fixed force spring is allocated to the free end and the winding portion, and the fixed force spring always provides an elastic force so that the trolley can stop between the lowest position and the highest position. The lifting device of claim 1, wherein the bracket has two opposite side plates, a rear plate, and a front plate, and the side plate, the rear plate, and the front plate define the receiving space. The elongated opening is formed on the front panel. The lifting device of claim 2, wherein the sliding rail group comprises two sliding rails, and the sliding rails are fixed to the two side panels at intervals. The lifting device of claim 3, wherein the constant force spring is interposed between the pulley and the rear plate, and the constant force springs are vertically aligned with each other, the volume of the constant force spring The winding axis of the winding is perpendicular to the first direction. The lifting device of claim 4, wherein the free end of the constant force spring is locked to the pulley, and the winding portion is fixed to the rear plate of the bracket. The lifting device of claim 5, wherein the rear plate further comprises at least one fixing seat on which the winding portion of the constant force spring is disposed. The lifting device of claim 4, wherein the free end of the constant force spring is locked to the rear plate of the bracket, and the winding portion is fixed to the pulley. The lifting device of claim 7, wherein the trolley further comprises at least one fixing seat on which the winding portion of the constant force spring is disposed. The lifting device of claim 1, wherein the bracket has a back plate and a casing, and the elongated opening is formed on the casing, and the back plate defines the receiving space around the casing . The lifting device of claim 9, wherein the sliding rail group comprises two sliding rails, the sliding rails are correspondingly disposed on the backing plate, and the free end of the constant-force spring is locked The back plate of the bracket, and the winding portion is disposed on the pulley. The lifting device of claim 10, wherein the constant force spring is interposed between the pulley and the back plate, and the constant force springs are juxtaposed in pairs and stacked one above another, the force is fixed. The winding axis of the winding portion of the spring is parallel to the first direction. The lifting device of claim 11, wherein the backing plate further comprises at least one rib for locking the free end of the constant force spring thereon. The lifting device of claim 12, wherein the trolley further comprises at least one fixing seat on which the winding portion of the constant force spring is disposed.