JP3049847U - Lifting unit - Google Patents

Abstract

(57) [Abstract] (with correction) [Problem] To reduce the size of an elevating device, and to enable safe and secure vertical movement of an elevating shelf, and to be able to be installed at a low cost with simple construction by unitization. I will provide a. A motor is fixed to a case fixed to a ceiling or a wall, and a winding shaft is provided on an output shaft of the motor via a speed reduction mechanism, and one end is fixed to the winding shaft. The other end of the belt 2 is fixed to the lifting shelf 4 by hanging the belt 2 on the fixed pulley 11 attached to the case 1, or the other end of the belt 2 is fixed to the fixing portion 12 provided on the case 1. The belt 2 between the pulley 11 and the fixing portion 12 is hung on a moving pulley 25 fixed to the lifting shelf 4, and the lifting or lowering shelf 4 is raised or lowered by winding or rewinding the belt 2 by rotation of the motor 5. .

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an elevating unit configured to be able to move up and down shelves in a kitchen, for example, and to be able to construct an elevating device therefor as one unit.

[0002]

[Prior art]

 For example, a shelf provided above a kitchen sink is at a high position, but a device has been developed which can be moved up and down in order to make it easier to put and take out stored items in the shelf.

A conventional example of the apparatus for this will be described with reference to FIG. 8. Referring to FIG. 8, a winding shaft 32 is provided on a motor 31 fixed to a panel 30 attached to a ceiling or a wall, and the winding shaft 32 is provided. The wire 34 is fixed at one end and the other end is fixed to the upper end of a lifting shelf 36 via a pulley 35 attached to a wall or the like.

When the lifting shelf 36 is large, one end of each of the wires 34 is fixed to the four sides of the lifting shelf 36 as shown in FIG. By winding around the single take-up shaft 32, the hanging strength of the elevating shelf 36 is ensured, and the elevating shelf 36 is kept parallel when suspended.

[0005]

[Problems to be solved by the invention]

 However, in the conventional elevating device configured as described above, the elevating rack 36 is hung by the wire 34 and wound around the winding shaft 32. .. May not be sequentially arranged, but may cross each other and become entangled with each other.

For this reason, the stress of the wires 34 decreases and causes cutting, the smooth rewinding of each wire 34 is prevented, and the length of each wire 34 at the time of winding changes, and the lifting shelf 3 6 had a problem such as loss of balance.

Further, since the winding thickness of the wire 34 around the winding shaft 32 is very large, there is a disadvantage that a large space is required around the winding shaft 32 and handling during construction is troublesome. Was.

[0010] Furthermore, since the conventional wire-type elevating device is not unitized, there is a problem that, as shown in FIG. 5, a work for pulley 35 to be attached to a wall surface or the like is separately required.

[0009] As a conventional elevating device, there is a device that moves an elevating rack using a hydraulic or electric cylinder, but in the case of a large rack, it is necessary to use a plurality of cylinders, and they are synchronized. There is a problem that it is difficult.

The present invention has been made in order to solve such a problem. In addition to downsizing of the lifting device, it enables a safe and reliable vertical movement of the lifting shelf. It is an object of the present invention to provide an elevating unit that can be installed at a low cost with simple construction.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, the lifting unit according to claim 1 of the present invention is configured such that a motor is fixed to a case fixed to a ceiling or a wall, and the output shaft of the motor is connected via a speed reduction mechanism. A winding shaft provided, a belt having one end fixed to the winding shaft is hung on a constant pulley attached to the case, and the other end of the belt is fixed to a lifting shelf, and the belt is driven by rotation of the motor. The lifting shelf is moved up or down by winding or rewinding the rack.

Further, in the elevating unit according to claim 1, one pair of the winding shaft and the constant pulley for one belt is provided on each of the left and right sides of the case, and the pair is wound on each of the constant pulleys. The other end of the belt may be fixed to the left and right of the lifting shelf.

Further, in the lifting unit according to claim 1, a hook is connected to the other end of the belt hung on the fixed pulley, and the hook is hung on a hook ring attached to an upper portion of the lifting rack. You may make it stop.

Further, in the lifting unit according to the first aspect, the belt is preferably a cloth belt or a synthetic resin belt.

Further, in the lifting unit according to the first aspect, the lifting shelf may be provided with a guide means for linearly moving the lifting shelf up and down.

Further, in the lifting unit according to claim 6 of the present invention, a motor is fixed to a case fixed to a ceiling or a wall, and a winding shaft is connected to an output shaft of the motor via a speed reduction mechanism. A belt fixed at one end to the winding shaft is hung on a fixed pulley attached to the case, and the other end of the belt is connected to a fixed portion fixed to the case near the fixed pulley, and And a belt between the fixed parts is hung on a moving pulley fixed to a lifting shelf, and the lifting and lowering shelf is raised and lowered by winding and rewinding the belt by rotating the motor. is there.

The lifting unit according to claim 6, wherein a pair of the winding shaft, the fixed pulley, and the fixed portion related to one belt are provided on the left and right sides of the case, respectively. And a belt between the fixed part and the moving part may be hung on a moving pulley attached to the left and right sides of the lifting shelf.

Further, in the lifting unit according to claim 6, a belt between the fixed pulley and the fixed portion is hung on a moving pulley with a hook, and the hook is attached to a hook ring attached to an upper portion of the lifting rack. You may make it hang.

The lift unit according to claim 6, wherein the belt guided to the upper and lower sides of the case is fixed to a wall or the like by turning the lift unit upside down. The belt may be folded back and hanged on a movable pulley provided on a lifting shelf, and the belt may be further coupled to a fixed position such as an upper wall.

Further, in the lifting unit according to claim 6, the belt is preferably a cloth belt or a synthetic resin belt.

Further, in the lifting unit according to the sixth aspect, the lifting shelf may be provided with a guide means for linearly moving the lifting shelf up and down.

[0022]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1A is a perspective view of a lifting unit and a lifting shelf according to the first embodiment of the present invention, and FIG. 1B is a partial perspective view showing another means for fixing the end of the belt to the lifting shelf. FIG. FIG. 2 is a perspective view of a lifting unit and a lifting shelf according to a second embodiment of the present invention. FIG. 3 (a) is a perspective view showing the internal structure of the elevating unit of FIG. 2, and FIG. 3 (b) is a partial perspective view showing another means for connecting the end of the belt to the hooked metal fitting. . FIG. 4 is a perspective view of an elevating unit and an elevating shelf according to Embodiment 3 of the present invention. FIG. 5 is a perspective view of a lifting unit and a lifting shelf according to a fourth embodiment of the present invention. FIG. 6 is a perspective view showing the internal structure of the lifting unit of FIG. FIG. 7 is a schematic view of Embodiment 5 of the present invention.

Embodiment 1 In FIG. 1A, a case 1 is formed of a rectangular frame having a U-shaped cross section with a lower part opened, and a winding mechanism 3 is provided in the center of the inside thereof. However, a cover (not shown) may be provided at the lower part of the case 1 to make the internal winding mechanism 3 blind.

The case 1 is fixed to a ceiling, a wall, or the like of a place where the lifting shelf 4 is to be mounted with screws. For this purpose, the case 1 is provided with screw holes 1a, 1a,.

The winding mechanism 3 for the belt 2 includes a motor 5 fixed at the center of the inside of the case 1, a worm 6 fixed to a rotating shaft of the motor 5, a worm wheel 7 meshed with the worm 6, A reduction gear 8a coaxially coupled to the wheel 7; a reversing gear 8b having the same diameter is meshed with the reduction gear 8a to rotate the respective support shafts at the same speed as the winding shafts 9; It is made to let.

Note that both ends of a pair of winding shafts 9, 9 that form the respective support shafts of the worm wheel 7 and the reduction gear 8 a and the reversing gear 8 b connected thereto are supported by both walls of the case 1. That's right.

The motor 5 uses a geared motor so that the brake function is exerted at the stop position of the motor 5. When a motor having no brake function such as a geared motor is used, another stop function may be added to the speed reduction mechanism or the like.

The winding shaft 9 winds the belt 2 and may be formed in a bobbin shape having a brim on both sides around the winding.

On the other hand, fixed pulleys 11 and 11 are provided at both ends of the case 1, and both ends of the support shaft 11 a of each fixed pulley 11 are supported by both left and right walls of the case 1.

In such a configuration, one end of each of the two belts 2, 2 is fixed to each of the pair of winding shafts 9, 9, and the belts 2, 2 are attached to the fixed pulleys 11, 11 at both ends of the case 1. Each end of the belts 2, 2 hanging from the fixed pulleys 11, 11 is applied to a fixing bracket 14 screwed to the upper center on both sides of the lifting shelf 4, and this is held down by the fixing bracket 13, and the screw is pressed. The belt 2 is fixed to the fixing bracket 14 by being stopped.

As another means for fixing the end of the belt 2 to the lifting shelf 4, as shown in FIG. 1B, the belt 2 is folded so that the shaft 23 a is inserted into the end of the belt 2. The portion 2a may be sewn to the opposite belt surface, and this shaft portion 23a may be connected to the flanges on both sides of the L-shaped bracket 23 screwed to the center of the upper corners on both sides of the lifting shelf 4.

As the belt 2, a cloth belt or a synthetic resin belt is preferably used. Such a belt made of cloth or synthetic resin has an advantage that it is easy to handle at the time of construction, and that there is almost no noise associated with winding and rewinding. The length of the lift unit 4 can be freely adjusted according to the height of the lift shelf 4. The lifting and lowering strokes of the lift unit 10 can be freely changed by the belt 2.

With the above configuration, the mounting of the elevating unit 10 is completed only by fixing the case 1 to a ceiling or a wall with screws.

A rail-shaped guide fitting 15 is fixed to both sides of the lifting shelf 4 with screws in a vertical direction, and a guide frame 16 fixed to a wall surface or the like in the room is inserted thereinto, and the lifting shelf 4 is moved up and down. Try to keep steady or parallel when moving.

When the motor 5 of the elevating unit 10 of FIG. 1 configured as described above is rotated upward, the respective belts 2 and 2 are wound around the respective winding shafts 9 and 9 and the elevating rack By uniformly reducing the lengths of the belts 2, 2 suspended at both ends of the rack 4, the lifting shelf 4 can be raised in parallel.

Further, by rotating the motor 5 of the elevating unit 10 to the descending side, the respective belts 2, 2 are rewound from the winding shafts 9, 9, and the belts 2 suspended at both ends of the elevating rack 4. 2 can be lowered in parallel by extending the length of the rack 2 evenly.

Since the belt 2 is formed in a thin belt shape, the belt 2 can be sequentially aligned in the winding direction at the time of winding on the winding shaft 9, and a cross-like overlap like a conventional wire may occur. It can be moved up and down safely, or stopped at a fixed position, even if the rack is quite large.

(Embodiment 2) In this embodiment, as shown in FIG. 2, a lifting / lowering shelf 4 is suspended by using one belt 2 so as to move up and down. The lifting unit 10 'according to the present embodiment is suitable for a small lifting rack, whereas the lifting unit 10' is suitable for a large lifting rack.

That is, as shown in FIG. 2, a winding mechanism 3 ′ is provided on a case 1 ′ fixed to a ceiling or the like by screws.

As shown in FIG. 3 (a), the winding mechanism 3 'has a worm 6 connected to a rotating shaft of a motor 5 fixed to the case 1' of FIG. The worm wheel 7 is meshed with the support shaft of the worm wheel 7 as a winding shaft 9, which is supported on both walls of the case 1 ′, and a fixed pulley 11 for hanging the belt 2 near the winding shaft 9 is provided. The support shaft 11a of the fixed pulley 11 is supported by both walls of the case 1 '.

Then, as shown in FIG. 3A, the end of the belt 2 hanging down from the fixed pulley 11 is brought into contact with a support plate (not shown) fixed to the center of the metal fitting 24 with a hook. Hold with 13 and tighten the screws.

As another means for fixing the end of the belt 2 to the metal fitting 24 with a hook, as shown in FIG. The folded portion 2a may be sewn and the shaft portion 24a may be connected to the flange of the metal fitting 24 with the hook.

Further, as shown in FIG. 2, a hook ring 18 is screw-fixed to the center of the upper surface of the elevating rack 4, and the hook 17 of the metal fitting 24 with hook is hooked to the hook ring 18.

In this embodiment, since the lifting shelf 4 is suspended by one belt 2 as shown in FIG. 2, both sides of the lifting shelf 4 are provided with the above-described guide fittings 15 and guide frames 16. It is preferable to provide such a guide means so as to balance when ascending and descending.

Embodiment 3 In this embodiment, as shown in FIG. 4, the case 1 and the winding mechanism 3 are configured in the same manner as in the embodiment 1, and the belt 2 is also the same. .

However, shaft-shaped fixing parts 12, 12 are provided near the fixed pulleys 11, 11 on both sides, and both ends of these fixing parts 12, 12 are fixed to both walls of the case 1.

In a state where the belts 2, 2 guided from the respective winding shafts 9, 9 are hung on the pulleys 11, 11 at both ends of the case 1, the lower ends of the belts 2, 2 are fixed to the respective fixing portions. These members are fixed to the cases 12 and 12 to constitute a lifting unit 10 integrated with the case 1.

The end of the belt 2 may be fixed to the fixing portion as described above, or may be fixed to a member such as a beam instead of the shaft-shaped fixing portion formed in the case 1.

According to the above configuration, at the time of construction, the mounting of the elevating unit 10 is completed only by fixing the case 1 to a ceiling or a wall surface with screws.

At each end of the case 1, the belt 2 between the fixed pulley 11 and the fixed portion 12 is hanged on a moving pulley 25 provided on the L-shaped bracket 23, and the L-shaped bracket 23 is moved up and down the shelf 4. Secure it with a screw in the center of the upper end.

With such a configuration, the belts 2, 2 fed from the respective winding shafts 9, 9 in the lateral direction hang down along the fixed pulleys 11, 11, and move to the moving pulleys 25, 25 on the lifting shelf 4 side. Along the upper fixing portions 12 and 12.

The moving pulley 25 is previously hung on the belt 2 between the fixed pulley 11 and the fixed portion 12 and is used as a component of the elevating unit 10. May be simply fixed to the lifting shelf 4.

A rail-shaped guide fitting 15 is fixed to both sides of the lifting shelf 4 with screws in a vertical direction, and a guide frame 16 fixed to a wall or the like in the room is fitted into the rail, thereby moving the lifting shelf 4 up and down. You may make it steady or parallel when moving.

When the motor 5 of the lifting unit 10 configured as described above is rotated upward, the respective belts 2, 2 are wound around the winding shafts 9, and are hung on both ends of the lifting rack 4, By uniformly reducing the reciprocating length of the belts 2, 2 turned back by the pulleys 25, 25, the lifting rack 4 can be raised in parallel.

Further, by rotating the motor 5 of the elevating unit 10 downward, the respective belts 2 and 2 are rewound from the winding shafts 9 and 9 so that the reciprocating length of each belt 2 and 2 is equalized. , The lifting shelf 4 can be lowered in parallel.

Also in this embodiment, similarly to the first embodiment, the maximum diameter when the belt 2 is wound around the winding shaft 9 can be significantly smaller than that of a conventional wire.

Further, similarly to the first embodiment, since the belt 2 is formed in a thin belt shape, the belt 2 can be sequentially aligned in the winding direction when wound around the winding shaft 9, and can be arranged like a conventional wire. There is no cross-like overlap, the strength is high, and even a large lifting shelf can be safely moved up and down and stopped at a fixed position.

Fourth Embodiment In this embodiment, as in the second embodiment, the lifting shelf 4 is suspended by using one belt 2 so as to move up and down.

However, in this embodiment, as shown in FIG. 5 or FIG. 6, one belt 2 hung on the constant pulley 11 of the second embodiment is hung on a moving pulley 26 and turned upward. The unit is connected to a fixed part 12 supported on both walls of the case 1 'to form an integral elevating unit 10'.

The moving pulley 26 of this embodiment is provided with a hook 17 at the lower end, and the hook 17 is hooked on a hook ring 18 fixed to the center of the upper surface of the lifting shelf 4 by screws.

Also, in this embodiment, similarly to the above-described embodiment, the guide means including the above-described guide fittings 15 and guide frames 16 is provided on both sides of the elevating rack 4 so as to balance the elevating movement. It is preferable to do so.

(Embodiment 5) In this embodiment, as shown in FIG. 7, a lifting unit 10 similar to that of Embodiment 1 is used. 10 is installed on the floor side, and the belts 2, 2 guided upward from the left and right constant pulleys 11, 11 of the case 1 are hung on constant pulleys 20, 20, which are fixed to a wall or the like. The belts are hung on moving sheaves 21 provided below the elevating rack 4, and the ends of the belts 2 are connected to fixed positions 22, 22 such as upper walls.

With this configuration, in the first embodiment, the elevating unit 10 is installed above the elevating rack 4, whereas in this embodiment, the elevating unit 10 is installed above the elevating unit 10 installed on the floor or the like. In a state where the shelf 4 is provided, it is possible to move the lifting shelf 4 up and down.

The elevating unit according to the present invention can freely move up and down shelves in a kitchen, a wash basin, a living room, or the like, and can be variously applied as a means for elevating other furniture. is there.

In each of the above embodiments, the lifting and lowering of the lifting shelf 4 is described as being driven by the rotation of the motor 5. It is also possible to use the self-weight of the lifting shelf 4 to descend by natural fall without depending on the movement, and to perform the brake control at the time of stopping.

[0067]

[Effect of the invention]

 As described above, the lifting unit of the present invention uses a cloth or synthetic resin belt instead of the conventional wire, and has a structure in which the winding mechanism and the fixed pulley are integrated into the case. By doing so, it is possible to make the strength and operation aspects safer and more compact.

Moreover, using a fabric belt or a synthetic resin belt or the like has advantages in that handling during construction is easy, and that there is almost no noise associated with winding and rewinding.

At the time of construction, simply fixing the case to the ceiling or wall surface completes the mounting of the elevating unit, and fixes the other end of the belt suspended from the case to the elevating rack, or The installation of the lifting shelf can be completed simply by hanging it on the moving pulley fixed to the lifting shelf.

Further, in the lifting unit according to the present invention, by changing the length of the belt, it is possible to freely take up and down strokes of the lifting shelf, and even if the belt becomes longer, its thickness is extremely small. Therefore, the winding diameter at the time of winding can be reduced, which can contribute to downsizing of the elevating unit and realization of simple construction work.

In the present invention, by providing guide means on both sides of the elevating shelf as required, it is possible to prevent the swinging movement of the elevating shelf up and down, or to maintain a balance, and to achieve a smooth elevating shelf. Can be realized.

In addition, it is possible to adopt a configuration in which the belt is suspended by two belts on the left and right or one in the center according to the weight or volume of the lifting rack. It is possible to keep the left and right balance of the shelf parallel.

Further, the lifting unit according to the present invention not only lifts the lifting shelf with the belt of the lifting unit installed above the lifting shelf, but also installs the lifting unit on the floor or the like, and is provided above the lifting unit. It is also possible to configure so that the raised shelf is moved up and down.

[Brief description of the drawings]

FIG. 1 (a) is a perspective view of a lifting unit and a lifting shelf according to Embodiment 1 of the present invention, and FIG. 1 (b) is a portion showing another means for fixing an end of a belt to the lifting shelf. It is a perspective view.

FIG. 2 is a perspective view of a lifting unit and a lifting shelf according to a second embodiment of the present invention.

3 (a) is a perspective view showing the internal structure of the elevating unit of FIG. 2, and FIG. 3 (b) is a partial perspective view showing another means for connecting the end of the belt to a hooked metal fitting. It is.

FIG. 4 is a perspective view of a lifting unit and a lifting shelf according to a third embodiment of the present invention.

FIG. 5 is a perspective view of a lifting unit and a lifting shelf according to a fourth embodiment of the present invention.

FIG. 6 is a perspective view showing the internal structure of the lifting unit of FIG.

FIG. 7 is a schematic view of Embodiment 5 of the present invention.

FIG. 8 is a perspective view of a conventional lifting unit mounted on a lifting shelf.

[Description of sign]

 1, 1 '... Case 1a ... Screw hole 2 ... Belt 2a ... Belt folded part 3, 3' ... Winding mechanism 4 ... Lifting rack 5 ... Motor 6 ... Warm 7 ... Worm wheel 8a ... Reduction gear 8b ... Reversing gear 9 ... winding shaft 10,10 '... elevating unit 11 ... constant pulley 11a ... support shaft 12 ... fixed part 13 ... fixed fitting 14 ... fixed fitting 15 ... guide fitting 16 ... guide frame 17 ... hook 18 ... stop ring 23 ... L Mold 23b: Shaft 24: Metal fitting with hook 24a: Shaft 25: Moving pulley 26: Moving pulley

Continued on the front page (51) Int.Cl. ⁶ Identification code FI B66D 1/30 B66D 1/30 Z

Claims (11)

[Utility model registration claims] 1. A belt having a motor fixed to a case fixed to a ceiling or a wall surface, a winding shaft provided on an output shaft of the motor via a speed reduction mechanism, and one end fixed to the winding shaft. And the other end of the belt is fixed to a lifting shelf by hanging the pulley attached to the case, so that the lifting or lowering of the lifting shelf is performed by winding or rewinding the belt by rotation of the motor. A lifting unit characterized by the following. 2. A pair of the winding shaft and the constant pulley for one of the belts is provided on each of the left and right sides of the case, and the other end of the belt hung on each of the constant pulleys is connected to the lifting shelf. The lifting unit according to claim 1, wherein the lifting unit is fixed to the left and right. 3. A hook is connected to the other end of the belt hung on the fixed pulley, and the hook is hooked on a hook ring attached to an upper portion of the lifting shelf. The lifting unit according to claim 1. 4. The elevating unit according to claim 1, wherein the belt is a cloth belt or a synthetic resin belt. 5. The elevating unit according to claim 1, wherein said elevating rack is provided with a guide means for raising and lowering said elevating rack in a straight line. 6. A belt having a motor fixed to a case fixed to a ceiling or a wall surface, a winding shaft provided on an output shaft of the motor via a speed reduction mechanism, and one end fixed to the winding shaft. On a fixed pulley attached to the case to couple the other end of the belt to a fixed portion fixed to the case near the fixed pulley, and fix a belt between the fixed pulley and the fixed portion to a lifting shelf. An elevating unit, wherein the elevating unit is lifted or lowered by winding or rewinding the belt by rotation of the motor. 7. A pair of the winding shaft, the fixed pulley, and the fixed portion, each of which is associated with one of the belts, is provided on each of the left and right sides of the case. 7. The elevating unit according to claim 6, wherein the elevating unit is hung on a moving pulley attached to the left and right sides of the elevating rack. 8. A belt between the fixed pulley and the fixed portion is hung on a movable pulley with a hook, and the hook is hooked on a hook ring attached to an upper portion of the lifting shelf. The elevating unit according to claim 6, wherein 9. The up-and-down unit is turned upside down, and the belt guided upward from the left and right fixed pulleys of the case is hung on a fixed pulley fixed to a wall or the like, and folded back downward to be provided on a lifting shelf. 7. The elevating unit according to claim 6, wherein said belt is attached to a fixed position such as an upper wall. 10. The lifting unit according to claim 6, wherein said belt is a cloth belt or a synthetic resin belt. 11. The elevating unit according to claim 6, wherein said elevating shelf is provided with a guide means for moving said elevating shelf up and down in a straight line.