JP2017140094A - Top board lifting/lowering device and top board lifting/lowering table including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a top board lifting/lowering device capable of easily lifting/lowering a top board of a table or the like and a top board lifting/lowering table including the top board lifting/lowering device.SOLUTION: A top board lifting/lowering table T1 according to the first embodiment includes: a top board 10; four legs 20A, 20B, 20C, 20D supporting the top board 10 and freely extended/contracted; four wires 41A, 41B, 41C, 41D connected with the four legs 20A, 20B, 20C, 20D respectively; and an operation part 30 extending/contracting the four legs 20A, 20B, 20C, 20D synchronously by operating a movement amount of the four wires 41A, 41B, 41C, 41D synchronously.SELECTED DRAWING: Figure 2

Description

  This Embodiment is related with the top-plate raising / lowering apparatus which raises / lowers a top plate, and a top-plate raising / lowering table provided with the same.

  2. Description of the Related Art Conventionally, a pedestal elevating mechanism used when adjusting the height of a table or the like is known. For example, an elevating mechanism described in Patent Document 1 is related to an inner cylinder having a plurality of step portions in the side surface height direction, an outer cylinder that houses the inner cylinder, and a step portion of the inner cylinder that is connected to the outer cylinder. A locking member that fixes the inner cylinder to the outer cylinder in the height direction by engaging the mating piece. The lock member is connected to the outer cylinder by a screw. By operating the screw, the engagement piece engaged with the step portion of the inner cylinder can be automatically removed, or the engagement piece can be engaged with the step portion. According to such a structure, it is not necessary to pull out the engaging piece after loosening the screw or to hang the engaging piece on the step portion before tightening the screw, thereby improving workability.

JP-A-9-131225

  However, according to the lifting mechanism described in Patent Document 1, it is necessary to adjust the height of each pedestal one by one, so it may be difficult to match the heights of all the pedestals. In particular, in social welfare facilities such as nursing care facilities, many residents use wheelchairs and it was difficult for caregivers to work alone.

  The present embodiment provides a top plate elevating device that can easily elevate a top plate such as a table, and a top plate elevating table including the same.

  According to one aspect of the present embodiment, a top plate lifting device that lifts and lowers the top plate, which is connected to each of the plurality of legged columns and the plurality of legged columns that support the top plate. There is provided a top plate lifting apparatus including a plurality of wires and an operation unit that synchronously operates the movement amounts of the plurality of wires to expand and contract the plurality of pedestals synchronously.

  Moreover, according to the other one aspect | mode of this Embodiment, a top-plate raising / lowering table provided with such a top-plate raising / lowering apparatus is provided.

  According to the present embodiment, it is possible to provide a top plate elevating device that can easily elevate a top plate such as a table, and a top plate elevating table including the same.

The figure which shows the usage example of the top-plate raising / lowering table which concerns on 1st Embodiment. The perspective view which shows the expansion | extension state which extended four pedestals with which the top-plate raising / lowering table which concerns on 1st Embodiment is equipped. The perspective view which shows the short leg state which shrunk four pedestals with which the top-plate raising / lowering table which concerns on 1st Embodiment is equipped. It is a figure which shows the internal structural example of the operation part with which the top-plate raising / lowering table which concerns on 1st Embodiment is provided, (a) Top view, (b) Side view, (c) Front view, (d) Back view. The perspective view which shows the operation example of the operation part with which the top-plate raising / lowering table which concerns on 1st Embodiment is provided. It is a figure which shows the structural example of the pedestal column with which the top-plate raising / lowering table which concerns on 1st Embodiment is provided, (a) Side view, (b) AA sectional drawing. The disassembled block diagram of the pedestal column with which the top-plate raising / lowering table concerning 1st Embodiment is provided. It is a figure for demonstrating the expansion-contraction principle of the pedestal column with which the top-plate raising / lowering table which concerns on 1st Embodiment is equipped, (a) The figure which shows a short leg state, (b) The figure which shows an expansion | extension state. The schematic diagram which shows the principal part of the top-plate raising / lowering table which concerns on 2nd Embodiment. It is a figure which shows the structural example of the pedestal with which the top-plate raising / lowering table which concerns on 2nd Embodiment is provided, (a) Perspective view, (b) Sectional drawing. The perspective view which shows the modification of the operation part with which the top-plate raising / lowering table which concerns on 2nd Embodiment is provided. It is a figure for demonstrating the operation part shown by FIG. 11, (a) Top view, (b) Back view.

  Next, embodiments will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

  In addition, the embodiments described below exemplify apparatuses and methods for embodying the technical idea, and do not specify the material, shape, structure, arrangement, etc. of the component parts as follows. . This embodiment can be modified in various ways within the scope of the claims.

[First Embodiment]
Hereinafter, the top / bottom lifting table T1 according to the first embodiment will be described.

(Usage example of top / bottom table)
FIG. 1 is a diagram illustrating an example of use of the top / bottom lift table T1 according to the first embodiment. The top / bottom lift table T1 is a welfare table used in a social welfare facility such as a nursing facility. In the social welfare facilities, there are many residents 2 who use the wheelchair 3, and it was difficult for the caregiver 1 to adjust the height of the top board 10 alone.

  Therefore, the top plate elevating table T1 according to the first embodiment includes a top plate elevating device described below. That is, as shown in FIG. 1, the top plate elevating device is a device for elevating the top plate 10, and is provided with four telescopic pillars 20A, 20B, 20C, 20D that support the top plate 10 and 4 The amount of movement of the four wires 41A, 41B, 41C, 41D (not shown) and the four wires 41A, 41B, 41C, 41D connected to the respective pedestals 20A, 20B, 20C, 20D. By operating synchronously, the operation part 30 which expands and contracts four leg posts 20A, 20B, 20C, 20D synchronously is provided. As a result, the four pedestals 20A, 20B, 20C, and 20D can be expanded and contracted synchronously, and the top board 10 can be easily raised and lowered while maintaining the horizontal state.

(Configuration example of top / bottom table)
FIG. 2 is a perspective view showing an extended state in which the four leg posts 20A, 20B, 20C, and 20D provided in the top / bottom lifting table T1 according to the first embodiment are extended. On the other hand, FIG. 3 is a perspective view showing a short leg state in which the four leg posts 20A, 20B, 20C, and 20D included in the top / bottom lift table T1 according to the first embodiment are contracted. In FIG. 2 and FIG. 3, the top plate lifting table T <b> 1 is drawn upside down so that a characteristic configuration appears.

  As shown in FIGS. 2 and 3, four leg posts 20 </ b> A, 20 </ b> B, 20 </ b> C, and 20 </ b> D are erected from the four corners of the back surface of the rectangular top plate 10. Each of the four leg posts 20A, 20B, 20C, and 20D has an inner pipe 22A, 22B, 22C, and 22D covered with outer pipes 23A, 23B, 23C, and 23D, and has a structure that can be expanded and contracted.

  An operation unit 30 including a box-shaped control box 31 and a rotary handle 32 is attached to the short side of the back surface of the top plate 10. A handle 32 protrudes outward from the control box 31, and four wires 41A, 41B, 41C, 41D are pulled out from the control box 31 inward. The four wires 41A, 41B, 41C, 41D pass through the fixing member 42 disposed on the back surface of the top plate 10 and are drawn into the four leg posts 20A, 20B, 20C, 20D.

  As the material of the wires 41A, 41B, 41C, and 41D, it is desirable to select a material that does not easily expand and contract. That is, since the operation unit 30 is attached to the short side of the top plate 10, the wires 41C and 41D are longer than the wires 41A and 41B, as is apparent from FIGS. Therefore, when a material that easily expands and contracts is selected, a mechanism for adjusting the lengths of the wires 41A, 41B, 41C, and 41D is required. In this embodiment, since the wires 41A, 41B, 41C, and 41D that are difficult to expand and contract are selected, such an adjustment mechanism is unnecessary.

  Here, the configuration in which the wires 41A, 41B, 41C, and 41D are fixed by the fixing member 42 is illustrated, but may be covered with a flexible wiring cover. Of course, as shown in FIG. 2 and FIG. 3, if the fixing members 42 are arranged at a plurality of positions on the back surface of the top plate 10, the top plate is prevented from interfering with the wires 41A, 41B, 41C, 41D. 10 can be arranged.

  By rotating the handle 32 with one hand, the user can expand and contract the four pedestals 20A, 20B, 20C, and 20D synchronously, and easily raise and lower the top board 10 while maintaining a horizontal state. it can. That is, as shown in FIG. 2, when the pillars 20A, 20B, 20C, 20D are extended and extended, most of the inner pipes 22A, 22B, 22C, 22D are exposed. The position becomes higher. On the other hand, as shown in FIG. 3, when the pedestals 20A, 20B, 20C, and 20D are in a short leg state, most of the inner pipes 22A, 22B, 22C, and 22D are outer pipes 23A, 23B, 23C, and 23D. Therefore, the height position of the top plate 10 is lowered.

(Internal configuration example of the operation unit)
4A and 4B are diagrams showing an example of the internal configuration of the operation unit 30 provided in the top / bottom lift table T1 according to the first embodiment. FIG. 4A is a plan view, FIG. 4B is a side view, and FIG. Front view, (d) is a rear view.

  As shown in FIG. 4, the shaft of the handle 32 is passed through the substantially central portion of the front surface of the box-type control box 31 and connected to the trapezoidal screw 33. The trapezoidal screw 33 is a screw having a trapezoidal cross section. A nut 34 is fitted into the trapezoidal screw 33, and a moving shaft 35 is welded to the nut 34. Both ends of the moving shaft 35 are spanned across a pair of guide grooves 36 formed on the side surface of the control box 31. A bearing member 38 that is slightly shorter than the moving shaft 35 is welded to the nut 34, the bearing member 38 supports the vicinity of both ends of the moving shaft 35, and the moving shaft 35 intersects the trapezoidal screw 33 in a cross shape in plan view. ing. On the back surface of the control box 31, four insertion holes 37A, 37B, 37C, and 37D are formed in the horizontal direction. The widths of the insertion holes 37A, 37B, 37C, and 37D and the diameters of the wires 41A, 41B, 41C, and 41D are substantially the same.

  Since the trapezoidal screw 33 has a larger movement amount per rotation than a general screw, the resistance when moved is small. For example, when the handle 32 attached to the welfare table for four persons is operated with one hand, it is appropriate to use a trapezoidal screw of about 18 mm. If a trapezoidal screw of 18 mm is used, a distance of 4 mm can be moved by one rotation, which is suitable for the elevation speed of the top plate 10.

  FIG. 5 is a perspective view showing an operation example of the operation unit 30 provided in the top / bottom lift table T1 according to the first embodiment. As shown in this figure, the tips of the four wires 41A, 41B, 41C, 41D are attached to the moving shaft 35 with sufficient strength, and the insertion holes 37A, 37B, 37C formed on the back surface of the control box 31 are provided. It is derived outside from 37D. The positions where the wires 41A, 41B, 41C, 41D are attached to the moving shaft 35 are positions facing the insertion holes 37A, 37B, 37C, 37D, respectively.

  Here, when the handle 32 is rotated clockwise, for example, the trapezoidal screw 33 connected to the handle 32 is also rotated clockwise, and the moving shaft 35 welded to the nut 34 is moved to the handle 32 side while maintaining the horizontal state. Moving. Thereby, the four wires 41A, 41B, 41C, and 41D attached to the moving shaft 35 are synchronously pulled to the handle 32 side by the same amount.

  On the other hand, when the handle 32 is rotated, for example, counterclockwise, the trapezoidal screw 33 connected to the handle 32 is also rotated counterclockwise, and the moving shaft 35 welded to the nut 34 maintains the horizontal state while maintaining the horizontal state. Move to the other side. As a result, the four wires 41A, 41B, 41C, 41D attached to the moving shaft 35 are synchronously pulled out to the opposite side of the handle 32 by the same amount.

(Configuration example of pedestal)
6A and 6B are diagrams showing a configuration example of the pedestal 20 provided in the top / bottom lifting table T1 according to the first embodiment, where FIG. 6A is a side view and FIG. Since the four pedestals 20A, 20B, 20C, and 20D have the same configuration, they are hereinafter collectively referred to as “legs 20” without being distinguished from each other. Similarly, other components are collectively referred to as an inner pipe 22, an outer pipe 23, a wire 41, and the like.

  As shown in FIG. 6, the pedestal 20 includes a base leg 26 installed on the floor, an outer pipe 23 erected from the base leg 26, and an inner pipe 22 fitted in the outer pipe 23. . The upper part of the outer pipe 23 is opened, and the inner pipe 22 is fitted into the outer pipe 23 so as to be movable up and down. The upper opening of the outer pipe 23 is closed by a cap C. The attachment plate 21 at the upper end of the inner pipe 22 has a structure that can be attached to the top plate 10 using screws or the like.

  An L-shaped cylindrical metal fitting 24 passes through the upper part of the inner pipe 22. A pulley 25 is fixed to the lower end of the inner pipe 22. Even in the state where the inner pipe 22 is most deeply fitted into the outer pipe 23, neither the cylindrical fitting 24 nor the pulley 25 is arranged to interfere with the outer pipe 23. The wire 41 is inserted from the cylindrical fitting 24 and folded back by the pulley 25, and the folded wire 41 is fixed to the upper part of the outer pipe 23 by a fixing member (described later).

  In FIG.6 (b), although the wire 41 has passed the right side of the pulley 25, it is not limited to this. Even if the inner pipe 22 slides in the outer pipe 23, the wire 41 may be arranged so that it does not unnecessarily contact the members in the inner pipe 22. In order to prevent the wire 41 from being detached from the pulley 25, a cover may be provided on the outer periphery of the pulley 25.

  FIG. 7 is an exploded configuration diagram of the pedestal 20 provided in the top plate elevating table T1 according to the first embodiment. As already described, the pedestal 20 includes a base leg 26 installed on the floor, an outer pipe 23 erected from the base leg 26, and an inner pipe 22 fitted in the outer pipe 23.

  As shown in FIG. 7, the base leg 26 can be disassembled into a main body 26a, a reinforcing portion 26b, and a bottom portion 26c. As such a base leg 26, a caster leg and a glide leg can be appropriately selected.

  In order to prevent the outer pipe 23 from falling when the top plate 10 is lifted, it is desirable to provide a spring 29 on the outer periphery of the inner pipe 22. That is, as shown in FIG. 7, one end of the spring 29 is fixed to the spring fixing member 29 a of the inner pipe 22. The other end of the spring 29 is regulated by a cap C at the end of the outer pipe 23. As a result, when the top plate 10 is lifted, the outer pipe 23 tries to move downward, but due to the presence of the spring 29, the other end of the spring 29 comes into contact with the cap C at the end of the outer pipe 23. Further, the outer pipe 23 is prevented from moving downward.

(Principal column expansion and contraction principle)
FIGS. 8A and 8B are diagrams for explaining the extension / contraction principle of the pedestal 20 provided in the top / bottom lift table T1 according to the first embodiment, where FIG. 8A shows a short leg state and FIG. 8B shows an extended state. Is shown. As shown in this figure, a wire 41 is inserted from an L-shaped cylindrical metal fitting 24 provided on the upper part of the inner pipe 22 and folded back by a pulley 25. It is fixed.

  Here, when the handle 32 is rotated, for example, clockwise, the wire 41 is drawn to the handle 32 side. At this time, the tip of the wire 41 is fixed to the outer pipe 23 by the fixing member F. Therefore, the outer pipe 23 is pulled by the wire 41, and the height position of the pulley 25 is raised by this pulling force, the inner pipe 22 is pulled out from the outer pipe 23, and the top plate 10 is raised. At this time, since a certain strength is maintained by the wire 41 which does not easily expand and contract, the structure is such that even if a load is applied to the top plate 10, it does not easily shake. Moreover, since the spring 29 is provided in the outer periphery of the inner pipe 22, it has the structure which prevents that the outer pipe 23 falls.

  On the other hand, when the handle 32 is rotated, for example, counterclockwise, the wire 41 is pulled out to the side opposite to the handle 32. As a result, the wire 41 is slackened, the height of the pulley 25 is lowered by the weight of the top plate 10, the inner pipe 22 is fitted into the outer pipe 23, and the top plate 10 is lowered.

  As described above, the top plate elevating table T1 according to the first embodiment includes the top plate 10, the four telescopic pillars 20A, 20B, 20C, and 20D that support the top plate 10, and the four. The four wires 41A, 41B, 41C, 41D connected to each of the pedestals 20A, 20B, 20C, 20D and the movement amounts of the four wires 41A, 41B, 41C, 41D are operated synchronously Thus, the four pedestals 20 </ b> A, 20 </ b> B, 20 </ b> C, and 20 </ b> D are provided with an operation unit 30 that extends and contracts synchronously. Thereby, since the four pedestals 20A, 20B, 20C, and 20D can be extended and contracted synchronously, the top plate 10 can be easily raised and lowered.

  The pedestal 20 may have a structure in which an inner pipe 22 whose one end is fixed to the top plate 10 is covered with an outer pipe 23 and a pulley 25 is provided on the other end side of the inner pipe 22. Thereby, it is possible to realize an inexpensive pedestal 20 using inexpensive parts such as the pulley 25.

  The operation unit 30 may move the four wires 41 </ b> A, 41 </ b> B, 41 </ b> C, and 41 </ b> D synchronously using one trapezoidal screw 33 that rotates according to the operation of the handle 32. Accordingly, it is possible to realize the inexpensive operation unit 30 using inexpensive parts such as the trapezoidal screw 33 and the wires 41A, 41B, 41C, and 41D.

  Further, four pedestals 20 </ b> A, 20 </ b> B, 20 </ b> C, and 20 </ b> D may be erected from the four corners of the top plate 10, and the operation unit 30 may be attached to the short side of the top plate 10. This makes it possible to realize a welfare table that is very easy to use. That is, even if the resident 2 who uses the wheelchair 3 sits on the long side of the top board 10, the operation space 30 is not provided on the long side of the top board 10, so that the foot space can be widely used. On the other hand, the caregiver 1 can stand on the short side of the top 10 and rotate the handle 32 with one hand to extend and contract the four pedestals 20A, 20B, 20C, and 20D at a stretch. . In the first place, since it is a table with four legs, there is also an advantage that the foot space is wider than a table with T-legs or one leg.

  In addition, although the welfare table used in a social welfare facility is illustrated here, it is not limited to this. For example, the present invention can be applied to other furniture with a top board such as a chair, an office desk, a table, and a bed.

  Moreover, although the case where the four leg pillars 20A, 20B, 20C, and 20D were provided was illustrated here, the number of leg pillars is not particularly limited.

  Moreover, although the case where the handle | steering-wheel 32 is rotated by hand was illustrated here, it is not limited to this. For example, a motor may be attached in the control box 31 and the top plate 10 may be moved up and down with buttons.

  Here, the trapezoidal screw 33 is illustrated, but the shape of the thread is not particularly limited. For example, a square screw having a square thread cross section may be used. Of course, the dimensions of the trapezoidal screw 33 can also be appropriately selected according to the size of the top plate lifting table T1 and the like.

  In addition, the present embodiment can be realized not only as the top plate lifting table T1, but also as a top plate lifting device obtained by removing the top plate 10 from the top plate lifting table T1. Since such a top plate elevating device raises and lowers the top plate 10 using the wire 41, the top plate 10 of various sizes can be handled only by adjusting the length of the wire 41.

[Second Embodiment]
In the following, the second embodiment will be described focusing on differences from the first embodiment.

(Configuration example of top / bottom table)
FIG. 9 is a schematic diagram illustrating a main part of the top / bottom lift table T2 according to the second embodiment. Here, only one pedestal 70A is shown, but the configuration of the other three pedestals (70B, 70C, 70D) is the same.

  In the second embodiment, a hydraulic method is adopted as a method for raising and lowering the top plate 60. That is, as shown in FIG. 9, the operation unit 80 includes a box-type control box 81 and a rotary handle 82. In the control box 81, four hydraulic cylinders 83A, 83B, 83C, 83D are arranged in parallel. The hydraulic cylinder is a device that reciprocates the cylinder by hydraulic pressure. Hydraulic tubes 91A, 91B, 91C, 91D are connected to one ends of the hydraulic cylinders 83A, 83B, 83C, 83D, and the hydraulic cylinders 101A (101B, 101C, 101D) on the side of the pedestals 70A (70B, 70C, 70D) are connected. It is connected to the.

  As shown in FIG. 9, the shaft of the handle 82 is passed through the substantially central portion of the front surface of the box-type control box 81 and connected to the trapezoidal screw 83. A nut 84 is fitted in the trapezoidal screw 83, and a rectangular moving plate 85 is welded to the nut 84. The moving plate 85 intersects the trapezoidal screw 83 in a cross shape in plan view. The four rods of the four hydraulic cylinders 83A, 83B, 83C, 83D are fixed in a direction perpendicular to the same surface of the moving plate 85.

(Configuration example of pedestal)
10A and 10B are diagrams showing a configuration example of a pedestal 70A included in the top / bottom lifting table T2 according to the second embodiment, where FIG. 10A is a perspective view and FIG. 10B is a cross-sectional view.

  Similar to the first embodiment, the upper portion of the outer pipe 73A is open, and the inner pipe 72A is fitted in the outer pipe 73A so as to be movable up and down. In the second embodiment, the hydraulic cylinder 101A is fixed inside the inner pipe 72A. The structure is such that a hydraulic tube 91A can be inserted from a notch 102 formed in the mounting plate 71A and connected to the inlet / outlet 103 of the hydraulic cylinder 101A.

(Principal column expansion and contraction principle)
Hereinafter, the extension / contraction principle of the pedestal 70 </ b> A will be described with reference to FIGS. 9 and 10.

  For example, when the handle 82 is rotated clockwise, the trapezoidal screw 83 connected to the handle 82 is also rotated clockwise, and the moving plate 85 welded to the nut 84 is moved to the opposite side of the handle 82. As a result, the hydraulic oil in the hydraulic cylinders 83A, 83B, 83C, 83D on the control box 81 side is synchronously supplied to the pedestal 70A (70B, 70C, 70D) side through the hydraulic tubes 91A, 91B, 91C, 91D. Flowing. As a result, the same amount of hydraulic oil flows synchronously into the four hydraulic cylinders 101A (101B, 101C, 101D) on the four pedestal columns 70A (70B, 70C, 70D) side, and the inner pipes 72A (72B, 72B, 72C, 72D) is pulled out from the outer pipe 73A (73B, 73C, 73D).

  On the other hand, when the handle 82 is rotated counterclockwise, for example, the trapezoidal screw 83 connected to the handle 82 is also rotated counterclockwise, and the moving plate 85 welded to the nut 84 moves to the handle 82 side. As a result, the four hydraulic cylinders on the control box 81 side pass through the four hydraulic tubes 91A, 91B, 91C, 91D in synchronism with the hydraulic oil on the four pedestal columns 70A (70B, 70C, 70D) side in the same amount. It flows into 83A, 83B, 83C, 83D. As a result, the inner pipe 72A (72B, 72C, 72D) is fitted into the outer pipe 73A (73B, 73C, 73D).

(Modification of operation unit)
FIG. 11 is a perspective view showing a modification of the operation unit 180 provided in the top / bottom lift table T2 according to the second embodiment. FIGS. 12A and 12B are diagrams for explaining the operation unit 180 shown in FIG. 11. FIG. 12A is a plan view and FIG. 12B is a rear view.

  As shown in FIGS. 11 and 12, the operation unit 180 includes a box-type control box 181 and a rotary handle 182. The shaft of the handle 182 is configured in a straight line, and the shaft is connected to the trapezoidal screw 183. A nut 184 is fitted into the trapezoidal screw 183, and a circular moving plate 185 is welded to the nut 184. The moving plate 185 intersects the trapezoidal screw 183 in a cross shape in plan view. The rods of the four hydraulic cylinders 183A, 183B, 183C, 183D are fixed in a direction perpendicular to the same surface of the moving plate 185.

  In this modification, four hydraulic cylinders 183A, 183B, 183C, and 183D are arranged circumferentially around the axis of the handle 182. Thus, the four hydraulic cylinders 183A, 183B, 183C, 183D can be arranged at the same distance with respect to the shaft of the handle 182. Therefore, it becomes possible to apply pressure uniformly to the hydraulic oil in the four hydraulic cylinders 183A, 183B, 183C, 183D.

  As described above, the top board lifting table T2 according to the second embodiment employs a hydraulic system as a system for raising and lowering the top board 60. Even with such a configuration, the four pedestals 70A (70B, 70C, and 70D) can be synchronously expanded and contracted similarly to the first embodiment, so that the top plate 60 can be easily raised and lowered. Is possible. Further, it is only necessary to provide a total of eight hydraulic cylinders in the pedestal 70A (70B, 70C, 70D) and the control box 81, and there is an advantage that the configuration becomes simpler.

[Top plate lifting device]
As already described, this embodiment can be realized not only as the top plate lifting tables T1 and T2, but also as a top plate lifting device obtained by removing the top plates 10 and 60 from the top plate lifting tables T1 and T2. You can also.

  Hereinafter, the structure of the top plate lifting apparatus used for the top plate lifting table T1 will be described.

  That is, the top plate elevating device used for the top plate elevating table T1 is a device for elevating the top plate 10, and four telescopic pillars 20A, 20B, 20C, 20D that support the top plate 10, and The four wires 41A, 41B, 41C, 41D connected to each of the four pedestals 20A, 20B, 20C, 20D and the movement amounts of the four wires 41A, 41B, 41C, 41D are operated synchronously. By doing so, the operation part 30 which expands and contracts four leg posts 20A, 20B, 20C, 20D synchronously is provided. Thereby, since the four pedestals 20A, 20B, 20C, and 20D can be extended and contracted synchronously, the top plate 10 can be easily raised and lowered.

  The pedestal 20 may have a structure in which an inner pipe 22 whose one end is fixed to the top plate 10 is covered with an outer pipe 23 and a pulley 25 is provided on the other end side of the inner pipe 22. Thereby, it is possible to realize an inexpensive pedestal 20 using inexpensive parts such as the pulley 25.

  The operation unit 30 may move the four wires 41 </ b> A, 41 </ b> B, 41 </ b> C, and 41 </ b> D synchronously using one trapezoidal screw 33 that rotates according to the operation of the handle 32. Accordingly, it is possible to realize the inexpensive operation unit 30 using inexpensive parts such as the trapezoidal screw 33 and the wires 41A, 41B, 41C, and 41D.

  Further, four pedestals 20 </ b> A, 20 </ b> B, 20 </ b> C, and 20 </ b> D may be erected from the four corners of the top plate 10, and the operation unit 30 may be attached to the short side of the top plate 10. This makes it possible to realize a welfare table that is very easy to use. That is, even if the resident 2 who uses the wheelchair 3 sits on the long side of the top board 10, the operation space 30 is not provided on the long side of the top board 10, so that the foot space can be widely used. On the other hand, the caregiver 1 can stand on the short side of the top 10 and rotate the handle 32 with one hand to extend and contract the four pedestals 20A, 20B, 20C, and 20D at a stretch. . In the first place, since it is a table with four legs, there is also an advantage that the foot space is wider than a table with T-legs or one leg.

  As described above, according to the present embodiment, it is possible to provide a top plate elevating device that can easily elevate a top plate such as a table, and a top plate elevating table including the same.

[Other embodiments]
As described above, the embodiments have been described. However, it should be understood that the descriptions and drawings forming a part of this disclosure are illustrative and are not restrictive. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  As described above, this embodiment includes various embodiments not described here. For example, the shape or the like of the handle provided in the operation unit can be changed as appropriate.

  The top plate lifting apparatus according to the present embodiment can be applied to various furniture with a top plate such as a welfare table, a chair, an office desk, a table, and a bed that require easy lifting of the top plate. .

T1 ... top plate lifting table 10 ... top plate 20, 20A, 20B, 20C, 20D ... pedestal 22, 22A, 22B, 22C, 22D ... inner pipe 23, 23A, 23B, 23C, 23D ... outer pipe 24 ... cylindrical Metal fitting 25 ... pulley 29 ... spring 29a ... spring fixing member 30 ... operation part 31 ... control box 32 ... handle 33 ... trapezoidal screw 34 ... nut 35 ... moving shaft 41, 41A, 41B, 41C, 41D ... wire 42 ... fixing member T2 ... top plate lifting table 60 ... top plate 70A (70B, 70C, 70D) ... pedal column 71A ... mounting plate 72A ... inner pipe 73A ... outer pipe 80 ... operation part 81 ... control box 82 ... handle 83 ... trapezoidal screw 83A, 83B , 83C, 83D ... hydraulic cylinder 84 ... nut 85 ... moving plate 1A, 91B, 91C, 91D ... Hydraulic tube 101A (101B, 101C, 101D) ... Hydraulic cylinder 102 ... Notch 103 ... Inlet / outlet 180 ... Operating section 181 ... Control box 182 ... Handle 183 ... Trapezoid screw 183A, 183B, 183C, 183D ... Hydraulic cylinder 184 ... Nut 185 ... Moving plate C ... Cap

Claims (5)

A top plate elevating device for raising and lowering the top plate,
A plurality of telescopic pedestals supporting the top plate;
A plurality of wires coupled to each of the plurality of pedestals;
An operation device for operating the moving amounts of the plurality of wires synchronously to operate the plurality of pedestals to extend and contract synchronously.   2. The ceiling according to claim 1, wherein the pedestal has a structure in which an inner pipe whose one end is fixed to the top plate is covered with an outer pipe, and a pulley is provided on the other end side of the inner pipe. Plate lifting device.   The top panel lifting device according to claim 1, wherein the operation unit synchronously moves the plurality of wires using a single trapezoidal screw that rotates in accordance with an operation of a handle.   4. The ceiling according to claim 1, wherein the four pedestals are erected from four corners of the top plate, and the operation unit is attached to a short side of the top plate. Plate lifting device.   A top plate elevating table comprising the top plate elevating device according to any one of claims 1 to 4.

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