JP2012050780A - Shelf lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shelf lifting device which makes it possible to secure free space below shelf boards, to prevent the shelf boards from rocking to achieve stability not only during lifting or lowering but also in a stopped state, to secure at least 50-60 cm distance for lifting or lowering, and to provide visual impression suitable for use in household.SOLUTION: The shelf board 9 is fixed to a lower end. A hanging means 12 is formed of a plurality of hanging plates P connected by pivoting. The hanging means 12 is wound around or delivered from a polyhedral drum 11 for vertical extension or contraction. The next hanging plate P is butted against the already wound hanging plates P without a gap. The hanging plates P are fixed in a vertical state by a ball notch mechanism.

Description

The present invention relates to a shelf lifting device that lifts and lowers a shelf board, and more particularly to a shelf lifting device having the following configuration.
<Configuration 1>
It consists of a hanging part and a shelf part,
The suspension portion is composed of a suspension means composed of a plurality of suspension plates connected to each other and a polyhedral drum whose longitudinal section perpendicular to the rotation axis is a polygonal shape, and the plurality of suspension plates connected to each other is a polyhedron. It is constructed so that the extension in the vertical direction of the suspending means composed of a plurality of suspending plates can be expanded and contracted by winding or unwinding on a drum,
When the plurality of suspension plates constituting the suspension means are wound around the polyhedron drum, the first turn is wound so that the first roll overlaps each surface of the peripheral portion of the polyhedron drum in parallel. In the second and subsequent rolls, the next suspended plate is wound up on the suspended plate that has already been wound, and the connecting portion where the multiple suspended plates wound around the polyhedral drum are bent. And the length of the suspension plate is configured so that the distance between the adjacent bent joints becomes longer as the number of turns increases,
A shelf raising / lowering device, wherein a shelf is attached to a lower end of the suspension means.
<Configuration 2>
A suspension plate is rotatably coupled by a pivot common to an adjacent suspension plate, and is connected to the adjacent suspension plate via a ball notch mechanism. The shelf elevating device according to Configuration 1, wherein the ball is fitted and fixed to the notch in a state where the plate and the hanging plate adjacent to the plate are perpendicular to each other.
<Configuration 3>
When the suspension plate wound around the polyhedron drum is fed out, it has a guide mechanism for sandwiching the suspension plate from both sides below the polyhedral drum and arranging the passing suspension plate in the vertical direction. The shelf elevating device according to Configuration 1 or Configuration 2, wherein
<Configuration 4>
In the vicinity of the polyhedron drum, there is a guide mechanism that presses the suspended plate in the process of being wound up so that the suspended plate in the process of being wound is in contact with the suspended plate already wound up without any gap The shelf elevating device according to Configuration 1 or Configuration 2 or Configuration 3, wherein

Conventionally, various types of mechanisms for raising and lowering the shelf have been developed, each having its own characteristics. Now, the main mechanisms are summarized:
-Those that use a link mechanism-Those that wind up and lower wires, belts, chains, etc.-Those that use a pinion rack mechanism-Those that use a pantograph mechanism-Those that use a screw shaft.

  A feature of the apparatus using the link mechanism is that a support mechanism such as a frame or a guide rail is not required. Therefore, the lower part of the shelf board is made clear by the absence of the support mechanism at the lower part of the shelf board, and the lower space can be used effectively. However, the disadvantages are that the lifting distance is limited, and not only vertical movement but also horizontal movement inevitably occurs. See, for example, Patent Documents 5 and 6 below.

In addition, although the following patent document 6 uses a link mechanism for the offering stand of a god shelf, it is thought that it is difficult to actually use because the raising / lowering distance is too short. In other words, the god shelves can be attached to the duck in a normal home, but the height of the duck is about 180 centimeters, so considering the height of a Japanese housewife, I want the lift distance to be at least 50-60 centimeters. The ascending / descending distance in Patent Document 6 below is 20 to 30 centimeters in view of the drawings, which is significantly insufficient.

  Next, as a feature of a device that winds and lowers a wire, a belt, a chain, or the like, a lifting distance can be arbitrarily set. That is, the longer the wire, belt, chain, etc., the longer the lifting distance can be made. On the other hand, a disadvantage is that a shelf board suspended by wires, belts, chains, etc. is uneasy by itself, so that a frame and a guide are inevitably required. In other words, the frame body and guides in the extension direction are indispensable, and these exist below the shelf board, so the lower space of the shelf board is not free space (space that can be used freely) like that of the link mechanism. . As an example, see Patent Documents 1 and 3 below.

  Next, as a feature of the apparatus using the pinion rack mechanism, since the shelf board is stabilized only by the pinion rack mechanism, there is no need for a frame body or a guide, and the lifting distance is not limited like the link mechanism. . However, since the rack is a straight rigid body, the bottom of the shelf is not a free space. For example, see Patent Document 4 below.

  Next, for a device using a pantograph mechanism, there is a feature that a frame or a guide is unnecessary, and if a pantograph mechanism of a type suspended from the upper part is used, the space below the shelf becomes free space. However, the disadvantages are that the shelf board becomes unstable only by supporting the pantograph mechanism, that it is difficult to use for example indoors due to the appearance of the pantograph mechanism, and that the number of steps of the pantograph increases as the lifting distance increases. The point is that the shelf is not completely raised. As an example, see Patent Document 7 below.

  The following Patent Document 7 is an example in which a pantograph mechanism is used for a god shelf offering table. However, since the pantograph mechanism is mounted only on one side of the back side, it becomes unstable when the offering is exchanged. Is expected to shake. In addition, instability is not avoided even when raising and lowering, and it seems that it is not suitable as a raising and lowering mechanism for a serving table on which water is placed. Also, the appearance of the pantograph mechanism is not considered appropriate for the god shelf.

  Next, for the device using a screw shaft, the stability of the shelf board is outstanding, and no frame or guide is required, but the disadvantage is that the screw shaft exists over the entire lifting distance. The point that the lower part of the shelf does not become free space and the point that the raising / lowering speed cannot be increased are mentioned. As an example, see Patent Document 2 below.

  There are many shelves where it is desirable that the lower space below the shelves be free space. For example, the god shelves listed in Patent Documents 6 and 7 below are examples. A god shelf is often attached to a duck at home, but usually below the god shelf is a free space. An example is a kitchen shelf with a sink below, such as when you want to build a shelf on a bed in a small children's room.

In such a case, a type in which a frame body, a guide, a screw shaft, and a rack protrude downward cannot be used. Moreover, regarding the pan tag tough mechanism, it seems that the visual unnaturalness becomes a bottleneck when used for various shelves in ordinary homes as well as the unnaturalness when used for the above-mentioned god shelves.

Furthermore, another major factor required for the shelf board is “stability”. As mentioned above, mechanisms that use wires, belts, chains, etc. lack stability by themselves. Also, in the case of the pantograph mechanism, stability is lacking only by using one side as in Patent Document 7 below. However, if the pantograph mechanism is used on two or more sides, it is also true that the visual discomfort will increase.

The last element required for the shelf board is the problem of “lifting distance”. In other words, if the lifting distance is limited, such as a link mechanism or a pantograph mechanism, its practicality must be limited. Considering a certain long lifting distance, for example, home use, it is desirable to secure a lifting distance of at least about 50 to 60 centimeters.

Japanese Patent Laid-Open No. 5-178414 JP-A-8-38267 JP-A-10-95596 JP 2009-219592 A JP 2009-261838 A Registered Utility Model No. 3113096 Registered Utility Model No. 3139879

From the above, the following four points should be cited as problems in the present invention.
<Problem 1> The lower part of the shelf board is a free space, that is, an empty space.
<Problem 2> The shelf board does not oscillate even when it is lifted or stopped, and has stability.
<Problem 3> We want to secure a lift distance of at least about 50 to 60 centimeters.
<Problem 4> In the case of home use, it is also important to take care of the visual impression.

The present invention has been made to solve the above-described problems, and provides the means for solving the problems described below.
<Solution 1>
It consists of a hanging part and a shelf part,
The suspension portion is composed of a suspension means composed of a plurality of suspension plates connected to each other and a polyhedral drum whose longitudinal section perpendicular to the rotation axis is a polygonal shape, and the plurality of suspension plates connected to each other is a polyhedron. It is constructed so that the extension in the vertical direction of the suspending means composed of a plurality of suspending plates can be expanded and contracted by winding or unwinding on a drum,
When the plurality of suspension plates constituting the suspension means are wound around the polyhedron drum, the first turn is wound so that the first roll overlaps each surface of the peripheral portion of the polyhedron drum in parallel. In the second and subsequent rolls, the next suspended plate is wound up on the suspended plate that has already been wound, and the connecting portion where the multiple suspended plates wound around the polyhedral drum are bent. And the length of the suspension plate is configured so that the distance between the adjacent bent joints becomes longer as the number of turns increases,
A shelf raising / lowering device, wherein a shelf is attached to a lower end of the suspension means.
<Solution 2>
A suspension plate is rotatably coupled by a pivot common to an adjacent suspension plate, and is connected to the adjacent suspension plate via a ball notch mechanism. The shelf elevating device according to Solution 1, wherein the ball is fitted and fixed to the notch in a state where the plate and the hanging plate adjacent to the plate are perpendicular to each other.
<Solution 3>
When the suspension plate wound around the polyhedron drum is fed out, it has a guide mechanism for sandwiching the suspension plate from both sides below the polyhedral drum and arranging the passing suspension plate in the vertical direction. The shelf elevating device according to Solution 1 or Solution 2, wherein:
<Solution 4>
In the vicinity of the polyhedron drum, there is a guide mechanism that presses the suspended plate in the process of being wound up so that the suspended plate in the process of being wound is in contact with the suspended plate already wound up without any gap The shelf elevating device according to Solution 1, Solution 2, or Solution 3.

According to the invention of the solving means 1 of the present invention, the suspension part is composed of a suspension part and a shelf part. The suspension part is composed of a suspension means composed of a plurality of suspension boards connected to each other, and a direction perpendicular to the rotation axis. The vertical section is made of a polygonal polyhedron drum, and the vertical extension of the suspension means composed of a plurality of suspension plates can be expanded and contracted by winding or feeding a plurality of connected suspension plates around the polyhedral drum. The plurality of suspension plates that constitute the suspension means are suspended so that the first roll overlaps in parallel with each surface of the peripheral portion of the polyhedron drum when wound around the polyhedron drum. The plate is wound up, and after the second roll, the next suspended plate is wound on the suspended plate that has already been wound in parallel, and a plurality of suspended plates wound around the polyhedral drum are wound. The distance between the bent joint and the adjacent bent joint increases the number of turns. Since the length of the suspension plate is configured to become longer and the shelf is attached to the lower end of the suspension means, it is absolutely necessary to have a member that extends downward, such as a guide or a frame. In addition, the space under the shelf is always a free space regardless of the elevated state of the shelf.

Similarly, according to the invention of Solution 1 of the present invention, the length of the suspension means can be basically increased unlimitedly by increasing the number of suspension plates. “Securing the lifting distance” can be easily realized, and further raising and lowering distance can be easily achieved.

Similarly, according to the invention of Solution 1 of the present invention, there is always nothing below the shelf, and a simple hanging means having a belt-like or rod-like appearance appears on any side of the shelf. Therefore, even in a visual impression, there is no sense of incongruity at all when used at home.

Next, according to the invention of the solution means 2 of the present invention, the suspension plate is rotatably coupled by the pivot common to the adjacent suspension plate, and the ball notch mechanism is provided between the adjacent suspension plates. The ball notch mechanism is configured so that the ball is fitted and fixed to the notch in a state where the hanging plate and the hanging plate adjacent thereto are vertical. In the state where the suspending means is arranged in the vertical direction, the suspending means functions as one rigid body, so that the unstable state such as swinging of the shelf board is not caused, and the shelf board is always stable. Suspended. Therefore, the shelf board does not swing even by taking an article on the shelf or placing an article on the shelf, and can be used with the same usability as a normal shelf. Further, at the time of winding, the ball notch mechanism is released by the force by which the hanging plate is wound around the polyhedral drum, and smooth winding is possible. In addition, even when moving up and down, the vertical portion of the suspending means does not oscillate at all due to the action of the ball notch mechanism, and can always be moved up and down in a stable state.

Next, according to the invention of Solution 3 of the present invention, when the suspension plate wound around the polyhedron drum is drawn out, the suspension plate is sandwiched from both sides under the polyhedral drum and passes therethrough. Since there is a guide mechanism for aligning the vertical direction, the connected suspension plates are placed in the vertical position in order by the guide mechanism, whereby the ball notch mechanism works and the adjacent suspension plates Is fixed, and the whole is rigidized smoothly. In other words, the suspension plate below the guide mechanism can be made into a rigid body in which all the suspension plates are integrated very smoothly.

Next, according to the invention of the solution means 4 of the present invention, the winding plate in the process of being wound is wound in the vicinity of the polyhedron drum so that it is in contact with the suspended plate already wound up without any gap. Since there is a guide mechanism for pressing the suspended plate in the process, all the suspended plates can be wound around the polyhedral drum without any gap.

It is a front view of the principal part of the hanging part of the shelf raising / lowering apparatus of Example 1 of this invention, and the state by which the hanging board was wound up by the polyhedron drum is shown. (A) It is an external appearance perspective view of the principal part of the hanging part of FIG. (B) It is an external appearance perspective view of the polyhedron drum of the hanging part of the shelf raising / lowering apparatus of Example 1 of this invention. (A) It is a front view of the suspension board of the shelf raising / lowering apparatus of Example 1 of this invention. (B) It is a top view of the suspension board of the shelf raising / lowering apparatus of Example 1 of this invention. (C) It is a left view of the hanging board of the shelf raising / lowering apparatus of Example 1 of this invention. (D) It is a right view of the suspension board of the shelf raising / lowering apparatus of Example 1 of this invention. (A) It is an external appearance perspective view of the hanging board of the shelf raising / lowering apparatus of Example 1 of this invention. (B) It is explanatory drawing explaining the structure of the connection part of the shelf raising / lowering apparatus of Example 1 of this invention. (A) It is explanatory drawing for demonstrating the effect | action of the ball notch mechanism of the suspension board of the shelf raising / lowering apparatus of Example 1 of this invention. (B) It is explanatory drawing for demonstrating the effect | action of the ball notch mechanism of the suspension board of the shelf raising / lowering apparatus of Example 1 of this invention. (C) It is explanatory drawing for demonstrating an effect | action of the ball notch mechanism of the suspension board of the shelf raising / lowering apparatus of Example 1 of this invention. (A) It is explanatory drawing for demonstrating the effect | action of the ball notch mechanism of the suspension board of the shelf raising / lowering apparatus of Example 1 of this invention. (B) It is explanatory drawing for demonstrating the effect | action of the ball notch mechanism of the suspension board of the shelf raising / lowering apparatus of Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a front view of the principal part of the hanging part of the shelf raising / lowering apparatus of Example 1 of this invention, and the state by which the hanging board was released from the polyhedral drum is shown. It is the top view which notched a part of suspension part of the shelf raising / lowering apparatus of Example 1 of this invention. It is the front view which notched a part of suspension part of the shelf raising / lowering apparatus of Example 1 of this invention, and has shown the state by which the suspension board was released from the polyhedral drum. In the front view which notched a part of suspension part of the shelf raising / lowering apparatus of Example 1 of this invention, the state by which the suspension board was wound up by the polyhedron drum, ie, the state which the shelf board was fully raised, is shown. Yes. It is the external appearance perspective view seen from the upper direction of the shelf raising / lowering apparatus of Example 1 of this invention. It is the external appearance perspective view seen from the downward direction of the shelf raising / lowering apparatus of Example 1 of this invention. (A) It is the example which applied the shelf raising / lowering apparatus of Example 1 of this invention to the offering stand of the god shelf, and has shown the state which the offering stand went up completely. (B) It is the example which applied the shelf raising / lowering apparatus of Example 1 of this invention to the offer stand of the god shelf, and has shown the state which lowered | hung the offer stand to the height which can perform the exchange operation of an offering. (A) It is explanatory drawing for demonstrating an effect | action of an example of the stopper of the shelf raising / lowering apparatus of Example 1 of this invention. (B) It is explanatory drawing for demonstrating an effect | action of an example of the stopper of the shelf raising / lowering apparatus of Example 1 of this invention. (C) It is explanatory drawing for demonstrating the effect | action of the other example of the stopper of the shelf raising / lowering apparatus of Example 1 of this invention. (D) It is explanatory drawing for demonstrating an effect | action of the other example of the stopper of the shelf raising / lowering apparatus of Example 1 of this invention. It is a front view of the principal part of the hanging part of the structure different from FIG. 1 of the shelf raising / lowering apparatus of Example 1 of this invention, The state by which the hanging board was wound up by the polyhedron drum is shown.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

<Configuration of Example 1>
The shelf elevating device A1 according to the first embodiment of the present invention includes a suspended portion B and a shelf portion C1 as seen in FIGS. As shown in FIGS. 8 to 9, the hanging portion B is configured by incorporating four sets of hanging mechanisms 1, 2, 3, 4, a drive source 5 </ b> A, and a transmission mechanism 5 </ b> B inside the housing 8. ing. In addition, 6 is a control part which controls 5 A of drive sources, 7 is a power supply part.

As shown in FIGS. 11 and 12, the shelf elevating device A <b> 1 according to the first embodiment extends four hanging means 12, 22, 32, 42 that can be raised and lowered from below the rectangular parallelepiped housing 8. The shelf plate 9 of the shelf C1 is fixed to the lower ends of the two hanging means 12, 22, 32, 42, and the four hanging means 12, 22, 32, 42 are moved up and down (in the direction of the arrows). It is the structure which raises / lowers 9.

As shown in FIG. 12, the suspending means 12 is fed out from the feed outlet 13c drilled in the bottom plate 81 of the housing 8, and the suspending means 22 is fed out from the feed outlet 23c drilled in the bottom plate 81. The suspending means 32 is fed out from the feed outlet 33 c drilled in the bottom plate 81, and the suspending means 42 is fed out from the feed outlet 43 c drilled in the bottom plate 81.

The shelf C1 is composed of a shelf board 9. As shown in FIG. 11, hemispherical stoppers st, st, st, st are fixed to the four corners of the shelf plate 9. This is a configuration for creating a certain amount of space between the bottom plate 81 of the body 8. Without the stoppers st, st, st, st, when the shelf plate 9 is fully raised, the shelf plate 9 and the bottom plate 81 of the housing 8 are in close contact with each other, and air pressure is applied when the shelf plate 9 is to be lowered. Since there is a possibility that the resistance is increased, this is a configuration for avoiding the failure.

Alternatively, if the stoppers st, st, st, st are made of rubber or soft synthetic resin, the shock that the shelf plate 9 and the bottom plate 81 of the housing 8 collide when the shelf plate 9 is fully lifted is eased. Can also fulfill.

As shown in FIGS. 8 to 12, the housing 8 is formed by integrally fixing a bottom plate 81, an upper plate 82, a left side plate 83, a right side plate 84, a front plate 85, and a rear plate 86. Therefore, it is configured to be arbitrarily disassembled. Inside the housing 8, a receiving plate 87 is provided horizontally at the central portion. The receiving plate 87 has suspension mechanisms 1, 2, 3, 4, a drive source 5A, a transmission mechanism 5B, a control unit 6, a power source. In addition, the receiving plate 87 has an “E” shape in plan view, and the left and right sides are greatly cut out as shown in FIG.

Hereinafter, the drive source 5A and the transmission mechanism 5B will be described in detail. The drive source 5A is the motor M in the shelf lifting apparatus A1 of the first embodiment, but is not limited to a motor as long as it has a driving force and can control the driving force. Devices etc. are also conceivable. The transmission mechanism 5B refers to a mechanism that transmits the driving force of the driving source 5A to the rotation axes X1 and X2.

As shown in FIG. 8, the bearing X1a is fixed to the left front portion 87a of the receiving plate 87, the bearing X1b is fixed to the left rear portion 87b of the receiving plate 87, and is rotatably supported by the bearing X1a and the bearing X1b. A rotation axis X1 is provided. A bearing X2a is fixed to the right front portion 87c of the receiving plate 87, a bearing X2b is fixed to the right rear portion 87d of the receiving plate 87, and is rotatably supported by the bearing X2a and the bearing X2b. Has been handed over.

The polyhedral drum 11 of the suspending mechanism 1 is fixed to the front end of the left rotation axis X1, and the polyhedral drum 21 of the suspending mechanism 2 is fixed to the rear end. Further, a gear G2 that is a bevel gear is fixed near the center of the rotation axis X1. A polyhedral drum 31 of the suspension mechanism 3 is fixed to the front end of the right rotation shaft X2, and a polyhedral drum 41 of the suspension mechanism 4 is fixed to the rear end. A gear G4, which is a bevel gear, is fixed near the center of the rotation axis X2. Gear G2 and gear G4 have the same diameter and the same number of teeth.

A motor M, which is a drive source 5A, is fixed to the center right side of the central portion 87e of the receiving plate 87, and a gear that is a spur gear near the motor M is attached to the motor shaft XM that extends leftward from the motor M. The gear G1 which is a bevel gear is fixed to G5 and the tip. A bearing XMa that supports the motor shaft XM is fixed to the center left end of the center portion 87e. Further, the gear G1 is meshed with the gear G2 of the rotation shaft X1. The gear G1 has the same diameter and the same number of teeth as the gear G2 of the rotation axis X1. Further, a stopper ST is provided at the center of the motor shaft XM.

A bearing XNb is fixed to the center of the center portion 87e of the receiving plate 87 at a slightly rear right end, and a bearing XNa is fixed to the left, respectively, and the transmission shaft XN is rotatably supported. A gear G6, which is a spur gear, is fixed near the left end of the transmission shaft XN, and a gear G3, which is a bevel gear, is fixed to the right end of the transmission shaft XN. The gear G6 has the same diameter and the same number of teeth as the gear G5 of the motor shaft XM, and meshes with the gear G5. Further, the gear G3 is meshed with the gear G4 of the rotation shaft X2. The gear G3 has the same diameter and the same number of teeth as the gear G4 of the rotation axis X2.

As shown in FIGS. 8 and 9, the bottom plate 81 of the housing 8 is formed with a rectangular outlet 13 c, and the outlet 13 c is connected to the main guide 13 a and the sub guide 13 b connected to the bottom plate 81. An outlet guide 13 is provided. Similarly, the outlet 23c includes a main guide 23a and a sub guide 23b. The outlet 33c includes a main guide 33a and a sub guide 33b. The main outlet 43c includes a main guide 43a. The feeding guides 43 including the sub guides 43b are respectively provided. The configuration of the payout guides 13, 23, 33, and 43 will be described in detail later with the payout guide 13 as a representative.

As shown in FIGS. 9 and 10, an auxiliary plate 88 is fixed obliquely between the upper plate 82 and the left plate 83 above the left end of the housing 8, and above the right end of the housing 8. An auxiliary plate 89 is fixed obliquely between the plate 82 and the right side plate 84. As shown in FIGS. 8 to 10, the hoisting guide 141 is fixed to the front of the left side plate 83, and the hoisting guide 142 is fixed to the front of the auxiliary plate 88. A hoisting guide 241 is fixed to the rear of the left side plate 83, and a hoisting guide 242 is fixed to the rear of the auxiliary plate 88. A hoisting guide 341 is fixed in front of the right side plate 84, and a hoisting guide 342 is fixed in front of the auxiliary plate 89. A hoisting guide 441 is fixed to the rear of the right side plate 84, and a hoisting guide 442 is fixed to the rear of the auxiliary plate 89. The hoisting guides 14, 24, 34, and 44 will be described in detail later with the hoisting guide 14 as a representative.

The suspending mechanism 1 includes a polyhedral drum 11, a rotation axis X <b> 1 of the polyhedral drum 11, a suspending means 12 wound around the polyhedral drum 11, a feed outlet guide 13, and a winding guide 14. The suspending mechanism 2 includes a polyhedral drum 21, a rotation axis X <b> 1 of the polyhedral drum 21, a suspending means 22 wound around the polyhedral drum 21, a feed outlet guide 23, and a winding guide 24. The suspending mechanism 3 includes a polyhedral drum 31, a rotation axis X <b> 2 of the polyhedral drum 31, a suspending means 32 wound around the polyhedral drum 31, a feed outlet guide 33, and a winding guide 34. The suspending mechanism 4 includes a polyhedral drum 41, a rotation axis X2 of the polyhedral drum 41, a suspending means 42 wound around the polyhedral drum 41, a feeding guide 43, and a winding guide 44. Since the suspending mechanisms 1, 2, 3, and 4 have substantially the same configuration, the suspending mechanism 1 will be described in detail below as a representative. The main part of the hanging mechanism 1 is shown in FIGS.

The polyhedron drum 11 is a polyhedron having a substantially octagonal shape when viewed from the front, but one end of the polyhedron 11 protrudes from the other side when viewed from the front, forming a triangular protrusion 11a. The protruding distance is equal to the thickness of the suspending means 12, as is apparent in FIG. In addition, a rotation axis X1 is provided at the center of the polyhedral drum 11, and the rotation axis X1 and the polyhedron drum 11 are fixed.

The suspension means 12 is formed by connecting a plurality of suspension plates P, P,..., One end fixed to the polyhedron drum 11, and the other end fixed to one corner of the shelf plate 9 of the shelf C1. . As shown in FIG. 3, the hanging plate P is a flat plate having a substantially rectangular shape in plan view, rounded on both left and right sides, formed with a convex portion P1, a concave portion P2, and a convex portion P3 at the left end, and at the right end, A concave portion P4, a convex portion P5, and a concave portion P6 are formed. The convex portions P1 and P3 are formed in an arc shape convex leftward in a front view, a shaft hole PXh through which the pivot PX (see FIG. 4b) is inserted is formed, and the concave portion P2 is an arc shape concave to the right in the front view. The convex portion P5 is formed in an arc shape convex to the right in the front view, the shaft hole PXh through which the pivot PX is inserted is formed, and the concave portions P4 and P6 are in the arc shape concave to the left in the front view. Is formed.

A ball BL of a ball notch BN is mounted on the convex portions P1, P3, and P5, and a notch N of a ball notch BN is formed in the concave portions P2, P4, and P6. FIG. 5 shows the configuration of the ball notch BN. As shown in FIG. 5a, a circular hole Sh is formed in the convex portion S, and a ball BL urged in the protruding direction (arrow direction) by the coil spring CS is fixed to the tip of the coil spring CS. The other end of the coil spring CS is fixed to the bottom surface of the circular hole Sh. The ball BL is configured such that about half of the ball BL protrudes from the circular hole Sh in a free state of the coil spring CS.

The concave portion D is a hemispherical concave portion having a shape corresponding to the protruding portion of the ball BL, and has a notch N with chamfered Na around the perforated portion, and the concave portion D and the convex portion S are in contact with each other as shown in FIG. When contact is made, the protruding portion of the ball BL is fitted into the notch N, whereby the relative position of the concave portion D and the convex portion S is fixed. However, when the concave portion D and the convex portion S are in contact with each other in a state where the protruding portion of the ball BL is not fitted into the notch N as shown in FIG. 5C, the coil spring CS is compressed and the ball BL is placed in the circular hole Sh. It is stored in. In this case, the fixed state of the concave portion D and the convex portion S is released.

As shown in FIG. 6, when the convex portion S and the concave portion D are rotatably connected by the pivot PX, the ball BL is notched at the position where the convex portion S and the concave portion D are in a straight line with each other. It is comprised so that it may be fitted to. Therefore, when the concave portion D is rotated (or the convex portion S is rotated) and the ball BL is detached from the notch N, the fixed state is released. Since the chamfered Na is provided around the notch N (see FIG. 5), the ball BL slides on the chamfered Na surface from the notch N when the convex part S or the concave part D is rotated with a certain force or more. Escaped to the state shown in FIG. 6b.

Since the ball notch BN is configured in this manner, the suspended plates PA (P) and PB (P) connected in the state shown in FIG. Although fixed, either or both of them are rotated around the rotation axis PX by a force of a certain level or more, the fixed state is released, and the rotation axis PX serves as a pivot and can be rotated with respect to each other.

FIG. 1 shows a state in which the suspending means 12 having the above-described configuration is wound up (wound up) almost completely on the polyhedron drum 11. In this state, the suspending plates P, P,... Constituting the suspending means 12 are wound around the polyhedron drum 11 in a state of being wound away from the circumference of the polyhedron drum 11, that is, wound outward. The suspension plates P, P,... Are configured such that the extension PL along the longitudinal direction of the suspension means 12 becomes longer.

In the first roll wound on the polyhedral drum 11, the extension PL is a length that comes into contact with the extensions 11 </ b> L of each surface of the polyhedral drum 11 without any gap. However, on the surface with the protruding portion 11a, the extension 11L is slightly longer, and the extension PL is also lengthened accordingly. The second and subsequent winding plates P are configured to have an extension PL that can be brought into contact with the extension PL of the (n-1) th winding plate (n is a natural number). However, the extension PL is set short at the lower end portion of the suspending means 12 fixed to the shelf plate 9 so that the outlet guide 13 described later can pass smoothly.

In FIG. 15, the suspension plates P, P,... Wound around the polyhedral drum 11 are extended along the longitudinal direction of the suspension means 12 in the third and subsequent suspension plates P, P,. Here is an example where PL is shortened. That is, up to the second roll, one hanging plate P forms a straight portion, but from the third roll, two hanging plates P, P are connected in series to form a straight portion, and the outermost periphery. In FIG. 3, three hanging plates P, P, and P are connected in series at six locations to form a straight line portion.

That is, it is in contact with the straight line part (plane part) around the polyhedron drum 11 without any gap, and is in contact with the straight part (plane part) of the suspended plates P, P,. This means that it is possible to divide the hanging plate P constituting the straight portion (plane portion) into a plurality of pieces instead of one piece while satisfying the conditions. Since the extension PL along the longitudinal direction of the suspending means 12 of the mounting plate P is not so long, there is an effect that the feeding guide 13 and the feeding outlet 13c are more smoothly passed.

However, if the straight portion (plane portion) is divided and formed by too many suspension plates P, P,..., The number of portions that are bent when passing through the feeding guide 13 and the feeding outlet 13c is increased, which is smooth. Since the passage is impaired, the design of the number of divisions must be determined by the size of the polyhedral drum 11. That is, when the size of the polyhedral drum 11 is small, the number of divisions is reduced, and when the size of the polyhedral drum 11 is large, the number of divisions is increased. In any case, the number of turns increases as the distance between the pivots (joint portions) of the suspended plates P, P,... Wound around the polyhedral drum 11 and the pivots (joint portions) that are bent adjacent to each other increases. It is not changed that it is configured so as to become longer gradually.

Next, the structure of the delivery guide 13 will be described. As shown in FIGS. 1 and 7, the bottom plate 81 of the housing 8 is provided with a rectangular outlet 13c, and the suspending means 12 is extended downward from the outlet 13c. The left bottom plate 81 of the feeding port 13c extends upward in an arc shape to form the main guide 13a, and the right bottom plate 81 extends upward in an arc shape to form the sub guide 13b. The main guide 13a, the sub guide 13b, and the outlet 13c are added to the main guide 13a, the sub guide 13b, and the outlet guide 13 is comprised.

Next, the configuration of the winding guide 14 will be described. The winding guide 14 includes a winding guide 141 and a winding guide 142. A winding guide 141 is fixed to the left side plate 83 of the housing 8. The winding guide 141 is composed of a conical coil spring 141a and a roller 141b attached to the tip. The large diameter end of the coil spring 141a is fixed to the left side plate 83, and the roller 141b is wound around the polyhedral drum 11. It is in contact with the suspension means 12. Since the coil spring 141a is urged in the direction of the rotation axis X1 of the polyhedral drum 11, the winding guide 141 presses the suspension plate P of the suspension means 12 wound on the polyhedral drum 11 by the roller 141b.

An auxiliary plate 88 is provided obliquely between the upper plate 82 and the left plate 83 of the housing 8, and a winding guide 142 is fixed to the auxiliary plate 88. The winding guide 142 includes a conical coil spring 142a and a roller 142b attached to the tip. The large-diameter end of the coil spring 142a is fixed to the auxiliary plate 88, and the roller 142b is wound around the polyhedral drum 11. It is in contact with the suspension means 12. Since the coil spring 142a is urged in the direction of the rotation axis X1 of the polyhedral drum 11, the winding guide 142 presses the suspension plate P of the suspension means 12 wound around the polyhedral drum 11 by the roller 142b.

FIG. 7 shows a state where the suspending means 12 is wound down. The coil spring 141a of the winding guide 141 and the coil spring 142a of the winding guide 142 are in an extended state, but the rollers 141b and 142b press the suspension means 12 remaining on the polyhedral drum 11. Further, in this state, the suspending means 12 that passes through the payout opening 13c is linear in a front view. Further, the reason why the rollers 141b and 142b are attached to the leading ends of the winding guides 141 and 142 is that, if this portion does not have a roller structure, friction is generated between the winding guides 141 and 142 and the winding guides 141 and 142 are connected to the polyhedral drum 11. This is because the pressing action does not work well.

In FIG. 8, 6 is a control part, 7 is a power supply part. The rotation direction and rotation speed of the motor M that is the drive source 5 </ b> A are controlled by the control unit 6. The control method of the rotation direction and rotation speed of the motor M can be arbitrarily selected, such as using an inverter. Further, since the control unit 6 itself is often located at a high place, it is desirable that the control unit 6 can be operated remotely by a remote controller (not shown). In addition, c1 is a power cable that transmits power from the power supply unit 7 to the motor M, c2 is an information transmission cable that transmits control information from the control unit 6 to the motor M, and c3 is a power cable that transmits power from the power supply unit 7 to the control unit 6. It is.

In FIG. 8, ST is a stopper, which functions to properly fix the rotation of the motor shaft XM of the motor M to a stop state based on information from the control unit 6. At this time, the motor shaft XM continues to rotate but may be configured to be forcibly stopped by the stopper ST, or the rotation of the motor shaft XM itself is stopped by the control unit 6 to further ensure the stopped state. It is also possible to use a stopper ST in order to fix it.

FIG. 14 shows two examples of the configuration of the stopper ST. First, in the first example, as shown in FIGS. 14a and 14b, the stopper ST1 is a rod having a tip formed in an arc shape in a longitudinal sectional view, and the main body ST1a is made of metal or hard synthetic resin. A friction material ST1b made of rubber or soft synthetic resin is fixed to the tip. On the other hand, metal projecting pieces t1, t2, and t3 are implanted at equal intervals in the circumferential direction on the motor shaft XM.

Now, when the rotation direction of the motor shaft XM is the α direction in FIG. 14A, when the stopper ST1 advances in the a direction, any one of the projecting pieces t1, t2, and t3 is locked to the friction material ST1b of the stopper ST1, and the motor shaft The rotation of XM is stopped and fixed at that position. The same applies to the case where the rotation direction of the motor shaft XM is the β direction in FIG. When the stopper ST1 is withdrawn in the b direction, the locking state of any of the projecting pieces t1, t2, and t3 is released, and the motor shaft XM rotates in the α direction or the β direction.

Next, a second example of the configuration of the stopper ST is shown. The stopper ST2 shown in FIG. 14c and FIG. 14d has a configuration in which the tip is protruded in a bowl shape, and the motor shaft XM is held in the space SST to stop and fix the rotation of the motor shaft XM. ST2a is a metal or hard synthetic resin main body, and ST2b is a rubber or soft synthetic resin friction material fixed inside the bowl-shaped tip.

As seen in FIG. 14c, the motor shaft XM continues to rotate in a state where the motor shaft XM and the friction material ST2a are not in contact. In this case, the rotation direction is not limited. However, when the stopper ST2 advances in the direction a of FIG. 14a and the friction material ST2a comes into contact with the motor shaft XM and grips the motor shaft XM as shown in FIG. 14d, the rotation of the motor shaft XM is stopped. . In this state, when the stopper ST2 retracts in the direction b of FIG. 14d, the relationship between the motor shaft XM and the stopper ST2 returns to the state of FIG. 14c, and the motor shaft XM is released from the friction material ST2a and starts rotating again. Can do.

In the above description, the configuration in which the stopper ST1 is engaged with the motor shaft XM or the motor shaft XM is inserted into the stopper ST2 to stop and fix the rotation of the motor shaft XM is described. However, the rotation of the motor shaft XM is stopped and fixed. Of course, the method of making is not limited to the above. In addition, it is only necessary to finally stop and fix the lifting and lowering means 12, 22, 32, 42, so that the stopper mechanism can naturally be incorporated in a portion other than the motor shaft XM. The advantage of incorporating the stopper ST into the motor shaft XM is that if the rotation of the motor shaft XM is stopped and fixed, the rotation of the rotation shafts X1 and X2 is simultaneously stopped and fixed. , 42 are all stopped and fixed at the same time, and the shelf 9 (C1) is not inclined at all.

<Operation of Example 1>
The shelf lifting apparatus A1 according to the first embodiment is driven by a user operating a remote controller (not shown). In the initial state, as shown in FIG. 10, the suspending means 12, 22, 32, 42 are wound up, and the shelf plate 9 of the shelf C1 is suspended through the stoppers st, st, st, st. If the user is in contact with the bottom plate 81 of the housing 8, the information for the user to start the extending operation (lowering operation) of the suspending means 12, 22, 32, 42 by a remote controller (not shown) 6, the information section 6 sends “feeding information” to the motor M, and the motor M rotates the motor shaft XM in the β direction (see FIG. 8. FIG. 8 shows the suspension means 12, 22, 32, 42. Is the state that has been paid out).

  When the motor shaft XM is rotated in the β direction, the rotation shaft X1 is rotated in the δ direction by the action of the gears G1 and G2. Accordingly, the polyhedral drums 11 and 21 are also rotated in the δ direction, and the suspension plates P, P,... Wound around the polyhedral drum 11 are sequentially detached from the polyhedral drum 11 and fed downward. At this time, in the suspending mechanism 1, as shown in FIG. 1, the suspending plates P, P,... Are pressed by the winding guides 141, 142, so that they are positioned below the winding guide 141. Is maintained in a properly wound state, and the winding state is released only when the winding guide 141 is removed, and the winding guide is sequentially fed to the outlet guide 13.

  The suspension plate P sent to the delivery guide 13 is placed in series with the adjacent suspension plate P in the delivery guide 13. At this time, as shown in FIG. 6a, the series state is fixed by the action of the ball notch BN, and the suspension plates P, P,... Are fed downward from the delivery port 13c as a single plate-like suspension means 12. The

  This state is the same for the hanging mechanism 2. That is, the polyhedral drum 21 is rotated in the δ direction, and the suspension plates P, P,... Wound around the polyhedral drum 21 are suspended in series by the action of the winding guide 24 and the outlet guide 23. The means 22 is fed downward from the feed outlet 23c (see FIG. 12).

  Further, in the suspension mechanisms 3 and 4, the suspension means 32 fixed in series at the same time as the suspension mechanisms 1 and 2 in the same procedure is fed downward from the feed outlet 33 c and suspended in the series state. The setting means 42 is fed downward from the feed outlet 43c. That is, in FIG. 8, when the motor shaft XM is rotated in the β direction, the transmission shaft XN is rotated in the ζ direction by the action of the gears G5 and G6. When the transmission shaft XN is rotated in the ζ direction, the rotation shaft X2 is rotated in the θ direction by the action of the gears G3 and G4.

When the rotation axis X2 is rotated in the θ direction, the polyhedral drums 31 and 41 are also rotated in the θ direction. As a result, the suspending means 32 fixed in series is fed downward from the feeding port 33c, The suspending means 42 fixed in series is fed downward from the feed outlet 43c. Accordingly, each of the suspending means 12, 22, 32, and 42 is formed into a single plate shape and is simultaneously fed downward at a constant speed. Therefore, the shelf plate mounted on the lower ends of the suspending means 12, 22, 32, and 42. 9 is lowered while maintaining the horizontal state. At this time, in the suspending means 12, 22, 32, 42, the plate-like state is fixed by the action of the ball notch BN mechanism, so that the swinging means does not occur at all and can be lowered smoothly.

A user (not shown) operates a switch of a remote controller (not shown) when the shelf 9 is positioned at his / her preferred position, and causes the control unit 6 to stop the rotation of the motor shaft XM. Send information. As a result, the rotation of the motor shaft XM is stopped. At this time, the rotation of the motor shaft XM may be stopped using a control device such as an inverter (not shown) of the control unit 6, or the stopper ST. It may be performed by operating. Furthermore, it is possible to use a control device such as an inverter (not shown) of the control unit 6 and use a stopper ST to fix the state.

A user (not shown) performs necessary work such as placing a desired article (not shown) on the shelf board 9, and when the work is completed, the switch of a remote controller (not shown) is turned on. By operating it, information for rotating the motor shaft XM in the α direction is transmitted to the control unit 6. At the same time, the motor shaft XM is released from the stopper ST, and the motor shaft XM starts to rotate in the α direction. Then, the rotating shaft X1 is rotated in the γ direction by the action of the gears G1 and G2, the transmission shaft XN is rotated in the ε direction by the action of the gears G5 and G6, and the rotating shaft is rotated by the action of the gears G3 and G4. X2 is rotated in the η direction.

Thereby, the suspending means 12, 22, 32, and 42 are wound up and the shelf board 9 is raised. Taking this process as an example, an example of the suspending means 12 will be described with reference to FIGS. FIG. 7 shows a state in which the suspending means 12 is almost completely lowered and the shelf plate 9 is positioned at the lowest position. In this state, when the rotation axis X1 rotates in the direction γ, the suspension plate Twelve suspended plates P, P,... Are sequentially wound around the polyhedron drum 11, and finally the state shown in FIG. At this time, the suspended plates P, P,... Are suspended in the first volume with the suspended plate P in contact with each surface of the circumference of the polyhedron drum 11 without gaps, and the second and subsequent volumes are already wound. Since the next suspension plate P is brought into contact with the plate P without any gap, the suspension plates P, P,... Wound up finally as shown in FIG. It is wound up so as to be in contact with no gap.

At this time, the suspension plates P in the process of winding the winding guides 141 and 142 are sequentially pressed, so that the suspension plates P, P,... Are placed on the already suspended winding plates P. It will be rolled up with no gaps. That is, as described in the section of the configuration, the first roll wound around the polyhedral drum 11 is such that the extension PL of the hanging plate P contacts the extension 11L of each surface of the polyhedral drum 11 without a gap. However, in the surface with the protruding portion 11a, the extension 11L is slightly longer, the extension PL is also lengthened accordingly, and the suspension plate P after the second roll is Since it is configured to have an extension PL that is brought into close contact with the extension PL of the n-1th roll (n is a natural number), the new suspension board P is already wound up as described above. It is wound on the suspended board P without gaps. At this time, the configuration shown in FIG. 15 is also possible as described in the section of configuration.

Furthermore, in this process, because of the action of the hoisting guides 141 and 142, the newly suspending suspension plate P is wound while being tightly pressed onto the already suspended suspension plate P. Winding is even more reliable. The above is a description regarding the winding of the suspending means 12, but the suspending means 22, 32, 42 are also similarly wound. Therefore, the shelf board 9 rises smoothly while maintaining the level. At this time, the suspension means 12, 22, 32, 42 are formed in a single plate shape by the action of the ball notch BN mechanism, so that the portions exposed downward from the casing are swung. Etc. does not occur at all.

The user (not shown) presses the stop button of the remote controller (not shown) when the shelf board 9 is raised to the desired position. Then, stop information is sent to the information part 6, and rotation of the motor shaft XM is stopped. Alternatively, the stopper ST acts to stop and fix the motor shaft XM. In this way, a user (not shown) can freely control the rising, lowering, and stopping of the shelf board 9. Further, when an inverter (not shown) is incorporated in the control unit 6, it is possible to control the ascending speed and the descending speed.

<Configuration and Action of Example 2>
In FIG. 13, the shelf raising / lowering apparatus A2 of Example 2 of this invention is shown. The shelf elevating device A2 is designed with the shelf C2 as a god shelf offering table 90. The offering table 90 is composed of a base 91, a standing unit 92, and a table unit 93, and the platform 93 is located at the highest position. The upper surface and the upper surface of the casing 8 of the suspended portion B are configured to be aligned on the same plane. The other configuration is the same as that of the shelf lifting apparatus A1 of the first embodiment.

  The lower end of the suspending means 12, 22, 32, 42 is fixed to the base 91, the lower end of the standing portion 92 is integrally fixed to the front of the base 91, and the rear end of the base portion 93 is fixed to the upper end of the standing portion 92. Are fixed together, and the serving table 90 is configured as a plate-like body bent side-by-side.

  In use, the shrine Y is placed on the upper surface of the casing 8 of the hanging portion B, and the jar Sa, candlestick Ca, water, salt, rice vessel Da, etc. are placed on the upper surface of the base portion 93 of the offering stand 90. To do. FIG. 13a shows the state in which the offering table 90 is raised to the highest position, that is, the top surface of the base portion 93 and the top surface of the casing 8 of the suspended portion B are aligned on the same plane. is there.

  When replacing the bowl Sa, candlestick Ca, water, salt, rice vessel Da, etc., the user (not shown) lowers the entire serving table 90. Then, since the state shown in FIG. 13b is obtained, even a short user can easily replace the bowl Sa, candlestick Ca, water, salt, rice bowl Da, and the like. When the exchange is completed, the entire serving table 90 may be raised to the state shown in FIG. 13a again.

  The present invention has ideal characteristics as a lifting device for a shelf. That is, the ascending / descending distance is not limited as in the link mechanism and the pantograph mechanism, and the lower part of the shelf board is not occupied by the frame body or guide as in the winding mechanism using wires or belts. That is, the lower part of the shelf board becomes free space. Further, there is no instability, which is a weak point of a winding mechanism using a wire or a belt, and no oscillation occurs. Furthermore, it has a clean appearance and there is no exposure of mechanical members such as links and pantographs, so it can be used even indoors in the normal process and is expected to be used greatly in the field of store decoration. Is done.

  Alternatively, the present invention has optimum characteristics for use as a god shelf offering table. The god shelf is often attached to the duck in a normal Japanese house, and in the case of normal Japanese, especially housewives, replacement of the offerings on the offering table often requires a step board etc. depending on the height condition. Many people were worried about it but could not take care of the god shelves frequently. However, according to the present invention, the pedestal can be lowered to the position of his / her preference when exchanging the offering while taking advantage of the characteristics of the god shelf, which is usually not placed under the shelf. Offering can be exchanged effortlessly without the use of etc.

  The platform is troublesome to carry and set up one by one, and it is hard work for the elderly to carry. Also, working at a high altitude on the platform is very dangerous for elderly people with low physical ability. In general, the godshelf is often used by elderly people, so the present invention is very effective in reducing domestic accidents. In addition, the appearance is very neat, so there is no sense of incongruity even when used on a god shelf. In particular, when the shelf board (offer stand) is in the raised state, the mechanism such as the suspending means is completely invisible, so that the appearance is the same as a normal god shelf. This is an extremely important point when used as a god shelf.

  Furthermore, the present invention can be applied to various places in indoor space, such as a shelf on a kitchen sink and a shelf in a child room with a bed at the bottom. Also, in the field of store decoration, it can be moved up and down, the lower part is free space, and the appearance is clean, so it can be applied to various displays, and the application range is infinite depending on the idea It is possible to spread. In addition, if a railcar is used for a net shelf, a person who has been short of height and has been difficult to place a load on the net shelf can easily use the net shelf.

  Furthermore, the present invention can also be applied as a means for storing the back of the ceiling. That is, by accommodating the present invention in the back of the ceiling and using a part of the ceiling plate as a shelf plate, the portion of the ceiling plate used as the shelf plate can be raised and lowered by a remote control operation. Lower the ceiling plate of the part used as a shelf board to a height that makes it easy to store and remove the article, store and remove the article, and then raise the ceiling board of the part used as the shelf board If you stop it at the same height as the other parts of the ceiling board, you can realize very easy-to-use ceiling storage. Thus, the present invention provides a shelf lifting device that can be applied in any and all spaces, and has extremely important and useful industrial applicability.

DESCRIPTION OF SYMBOLS 1 Lifting mechanism 11 Polyhedron drum 11a Protrusion part 12 Hanging means 13 Feeding outlet guide 13a Main guide 13b Sub guide 13c Feeding outlet 14 Hoisting guide 141 Winding guide 141a Coil spring 141b Roller 142 Winding guide 142a Coil spring 142b Roller 2 Lifting mechanism 21 Polyhedral drum 22 Lifting means 23 Feeding guide 23a Main guide 23b Sub guide 23c Feeding outlet 24 Lifting guide 241 Lifting guide 242 Lifting guide 3 Lifting mechanism 31 Polyhedral drum 32 Lifting means 33 Feeding guide 33a Main guide 33b Sub guide 33c Feed outlet 34 Winding guide 341 Winding guide 342 Winding guide 4 Lifting mechanism 41 Polyhedral drum 42 Lifting means 43 Feeding guide 43a Main guide 43b Sub guide 43c Feeding outlet 44 Hoisting guide 441 Hoisting guide 442 Hoisting guide 5A Drive source 5B Transmission mechanism 6 Control unit 7 Power supply unit 8 Housing 81 Bottom plate 82 Upper plate 83 Left plate 84 Right plate 85 Front plate 86 Rear plate 87 Receiving plate 87a Left front portion 87b Left rear portion 87c Right front portion 87d Right rear portion 87e Central portion 88 Auxiliary plate 89 Auxiliary plate 9 Shelf plate 90 Offering table 91 Base 92 Standing portion 93 Base portion A1 Shelf lifting device A2 Shelf lifting device B Suspension portion BL Ball BN Ball Notch C1 Shelf C2 Shelf CS Coil Spring Ca Candlestick D Recessed Da Device G1 Gear G2 Gear G3 Gear G4 Gear G5 Gear G6 Gear M Motor N Notch Na Chamfering P Suspension Plate P1 Convex P3 Convex P4 Convex P4 Convex P4 Convex P5 Convex P6 Concave PA Suspension plate PB Suspension plate PL Extension PX Axis PXh Shaft hole S Convex Section SST Space ST Stopper ST1 Stopper ST1a Main Body ST1b Friction Material ST2 Stopper ST2a Main Body ST2b Friction Material Sa 榊 Sh Circular Hole X1 Rotating Shaft XIa Bearing X1b Bearing X2 Rotating Shaft X2a Bearing XM Bearing XM Bearing XM XNb Bearing Y Company A direction b direction c1 power cable c2 information transmission cable c3 power cable st stopper t1 projecting piece t2 projecting piece t3 projecting piece α direction β direction γ direction δ direction ε direction η direction ζ direction θ direction

Claims (4)

It consists of a hanging part and a shelf part,
The suspension portion is composed of a suspension means composed of a plurality of suspension plates connected to each other and a polyhedral drum whose longitudinal section perpendicular to the rotation axis is a polygonal shape, and the plurality of suspension plates connected to each other is a polyhedron. It is constructed so that the extension in the vertical direction of the suspending means composed of a plurality of suspending plates can be expanded and contracted by winding or unwinding on a drum,
When the plurality of suspension plates constituting the suspension means are wound around the polyhedron drum, the first turn is wound so that the first roll overlaps each surface of the peripheral portion of the polyhedron drum in parallel. In the second and subsequent rolls, the next suspended plate is wound up on the suspended plate that has already been wound, and the connecting portion where the multiple suspended plates wound around the polyhedral drum are bent. And the length of the suspension plate is configured so that the distance between the adjacent bent joints becomes longer as the number of turns increases,
A shelf raising / lowering device, wherein a shelf is attached to a lower end of the suspension means.   A suspension plate is rotatably coupled by a pivot common to an adjacent suspension plate, and is connected to the adjacent suspension plate via a ball notch mechanism. The shelf elevating device according to claim 1, wherein the ball is fitted and fixed to the notch in a state where the plate and the hanging plate adjacent to the plate are perpendicular to each other. When the suspension plate wound around the polyhedron drum is fed out, it has a guide mechanism for sandwiching the suspension plate from both sides below the polyhedral drum and arranging the passing suspension plate in the vertical direction. The shelf lifting apparatus according to claim 1 or 2, wherein In the vicinity of the polyhedron drum, there is a guide mechanism that presses the suspended plate in the process of being wound up so that the suspended plate in the process of being wound is in contact with the suspended plate already wound up without any gap The shelf lifting device according to claim 1, claim 2, or claim 3.