JP2002209644A - Liftable housing shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liftable housing shelf capable of eliminating the occurrence of a crash and a large sound at an elevated spot of the housing shelf by naturally lifting the housing shelf up to the elevated spot after housing or taking out an article, and restraining a lifting speed of the housing shelf to an almost fixed value regardless of a fluctuation in a load. SOLUTION: This liftable housing shelf 1 is provided with the freely liftable housing shelf 2, a frame body 3 for liftably arranging the housing shelf 2, a guide means 4 for guiding the lifting of the housing shelf 2, a lifting means 5 for lifting the housing shelf 2, a holding means 6 for releasably holding the housing shelf 2, a resistance force generating means 7 for generating resistance force for resisting lifting of the housing shelf 2 by the lifting means 5 on the basis of viscous shearing resistance, and a grip 8 installed on the housing shelf 2 and manually lowering the housing shelf 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an up-and-down type storage shelf capable of vertically moving a storage shelf installed at a relatively high place.

[0002]

SUMMARY OF THE INVENTION For example, storage shelves arranged at relatively high places, such as top bags of offices and houses, can be moved up and down to store articles such as office supplies and dishes in the storage shelves.
Elevating storage shelves have already been proposed that allow easy removal without the use of a step or chair.

[0003] In such an up-and-down type storage shelf, it is convenient that the storage shelf naturally rises to a high place without any trouble after storing and taking out articles. If this is performed by always applying a lifting force to the storage shelves, if the lifting speed is not an appropriate value, the storage shelves may hit a stopper or the like at a high place, causing damage to stored goods or generating loud noises. I do.

[0004] In addition, in the lifting type storage shelf, the load of the storage shelf including the articles fluctuates as a result of taking in and out of the articles. As described above, the lifting force applied to the storage shelf is usually set to be large. However, with such a large lifting force, when an article is taken out and the load on the storage shelf including the article is small, The collision at high places on the storage shelf and the generation of loud noises become even more remarkable.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to allow a storage shelf to be naturally raised to a high place after storing and removing articles. In addition, the lifting speed of the storage shelf can be kept almost constant irrespective of the fluctuation of the load, and thus the lifting storage shelf which can eliminate the collision at a high place of the storage shelf and the generation of loud noises is provided. It is in.

[0006]

According to the present invention, there is provided an elevating type storage shelf, which includes a storage shelf which can be raised and lowered, a lifting means for raising the storage shelf, and a viscous shearing force which resists the lifting of the storage shelf by the lifting means. A resistance generating means for generating a resistance force based on the resistance, wherein the lifting means includes a pair of flexible elongated bodies each having one end connected to each of the upper sides of the storage shelf; The other end of each of the elongated bodies is connected, a winding means for winding each elongated body, a concentric pulley arranged concentrically with a winding axis of the winding means, and the concentric pulley. , One end of which is connected to the concentric pulley and at least one constant load spring means for generating a lifting force for raising the storage shelf, and a winding shaft of the winding means. And the winding means A rotatable shaft that is rotated by winding of the elongated body by the above-described method, wherein the resistance generating means generates a resistance force against the rotation of the shaft of the lifting means in raising the storage shelf based on the viscous shear resistance. Is to occur.

[0007] According to the liftable storage shelf of the present invention, the storage shelf can be naturally raised to a high place by means of the lifting means after storing and taking out the articles.
Since the resistance generating means generates a resistance force against the rise of the storage shelf by the ascending means based on the viscous shear resistance, the storage shelf regardless of the load fluctuation of the storage shelf including the stored articles. Can be kept almost constant, so that a collision at a high place of the storage shelf and generation of a loud noise can be eliminated.

[0008] In addition, according to the above-described liftable storage shelf of the present invention, the pair of flexible elongated bodies connected to both upper sides of the storage shelf share resistance generating means via a shaft. As a result, the lifting means and the resistance generating means can be compactly installed on the upper part of the storage shelf, and the cost can be significantly reduced.

In the present invention, a wire can be cited as a preferred example of the flexible elongated body, but a string, a chain or a belt may be used instead.

In the present invention, the winding means has at least one winding pulley for winding each elongated body, and the winding pulley and the concentric pulley are the same as the winding pulley and the concentric pulley. When one of them is rotated, even if the other of the take-up pulley and the concentric pulley is rotated by the rotation, instead of this, a pair of take-ups that take up each elongated body is used. When one of the pair of take-up pulleys and the concentric pulley is rotated, the pair of take-up pulleys and the concentric pulley have a pulley. The other of and may be adapted to be rotated,
Here, the winding pulley and the concentric pulley may be arranged concentrically with the shaft, and may be fixed to the shaft.

[0011] The constant load spring means according to the present invention may be provided with one constant load spring.
Instead of this, preferably, a pair of constant load springs, and a pair of rotatable drums around which each of the pair of constant load springs are wound, according to such constant load spring means,
A desired lifting force for raising the storage shelf can be preferably generated.

In the present invention, the resistance generating means includes a rotating body, a stationary body opposed to the rotating body with a small gap, a viscous body disposed in the small gap, a rotatable shaft and a rotating body. And a one-way clutch interposed between the one-way clutch, wherein the one-way clutch transmits the rotation of the shaft when the storage shelf is raised to the rotating body, and the rotatable shaft when the storage shelf is lowered. May be made to idle with respect to the rotating body.

According to the combination of the lifting means and the resistance generating means, the lifting means and the resistance generating means can be installed extremely compactly without occupying a large space above the storage shelf.

[0014] The elevating storage shelf of the present invention may further comprise a handle attached to the storage shelf and for manually lowering the storage shelf, such a handle being provided on the front of the storage shelf. Or alternatively or together with the lower surface of the storage shelf.

The liftable storage shelf according to the present invention may further include a frame on which the storage shelf is arranged so as to be movable up and down, and guide means for guiding the storage shelf up and down. May have a roller attached to the side surface of the storage shelf and a groove provided in the frame so that the roller is disposed, and the guide means smoothly moves the storage shelf up and down. be able to.

The up-and-down type storage shelf of the present invention may further include holding means for releasably holding the storage shelf at a lower position, and the holding means includes an elastically biased engaging projection. And an engaged recess engaged with the engaging projection when the storage shelf is lowered and arranged at the lower position, wherein the engaging projection is a sphere, For example, if it is made of a material having a smooth outer surface such as a steel ball (ball), the engagement and disengagement of the engagement projection with the engaged recess can be performed smoothly with a small manual force.

The liftable storage shelf of the present invention is suitable for use in a home kitchen or the like, but may also be used in other places such as a commercial kitchen or office.

Next, the present invention will be described in more detail based on preferred embodiments shown in the drawings, but the present invention is not limited to these embodiments.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 7, an up-and-down storage shelf 1 of this embodiment comprises a storage shelf 2 which can be moved up and down, a frame 3 on which the storage shelf 2 is arranged so as to be able to move up and down, and 8, a raising means 5 for raising the storage shelf 2, a holding means 6 for releasably holding the storage shelf 2 at a lower position shown in FIG. A resistance force generating means 7 for generating a resistance force against rise based on viscous shear resistance, and a handle 8 attached to the storage shelf 2 and for manually lowering the storage shelf 2 are provided. .

The box-shaped storage shelf 2 is rotatably attached to the left and right side plates 11 and 12 and each of the side plates 11 and 12 via a hinge (hinge) in FIG.
Doors 14 and 15 each having a handle 13 on the front, a bottom plate 16 fixed to the side plates 11 and 12, and side plates 11 and 1
And an upper plate (ceiling plate) 17 fixed to 2
A handle 8 is attached to a front surface of the bottom plate 16.

The frame 3 includes a hollow ceiling frame (upper frame) 21,
A pair of hollow side frames 22 and 23 fixed to a ceiling frame 21
And a support plate 24 fixed to the ceiling frame 21 in the ceiling frame 21.
And 23 are arranged to be able to move up and down freely.

The guide means 4 is disposed on the side surface of the storage shelf 2, that is, on the outer side surface 31 of each of the side plates 11 and 12 of the storage shelf 2 via shafts 32 and 33 so as to be vertically separated from each other and rotatably mounted. A pair of rollers 34 and 35
And 35 are provided on the inner side surfaces 36 of the side frames 22 and 23 of the frame body 3 so as to be disposed thereon.

The guide means 4 guides the lifting and lowering of the storage shelf 2 by the rollers 34 and 35 rolling on the side frames 22 in the grooves 37 when the storage rack 2 is raised and lowered.

The lifting means 5 has an L-shaped fitting 41 at one end.
, 42, the upper plate 1 in this example.
7, wires 45 and 46 as a pair of flexible elongated bodies, which are connected to the left and right sides and are hung on the turning pulleys 43 and 44, and the other ends of the wires 45 and 46, respectively. Are connected and the wire 45
, 46, a concentric pulley 49 arranged concentrically with a winding shaft 48 of the winding means 47, one end of which is connected to the concentric pulley 49 and a concentric pulley 49. Spring means 53 having at least one, in this example, two constant load springs 51 and 52, which generate a lifting force for raising the storage shelf 2 and a winding axis of the winding means 47. 48 and the wire 4 by the winding means 47
And a rotatable shaft 54 that is rotated by winding 5 and 46.

Each of the diverting pulleys 43 and 44 is rotatably supported by the support plate 24 via a support shaft 55 and a bearing 56.

The winding means 47 comprises wires 45 and 46
Has a pair of flanged winding pulleys 57 and 58 disposed in the direction of the winding axis 48 with the concentric pulley 49 interposed therebetween. Each of the pulleys 57 and 58 is fixed to the shaft 54, and the take-up pulleys 57 and 5
8 and concentric pulleys 49 arranged concentrically with the take-up pulleys 57 and 58.
And 58 and a shaft 54 concentrically arranged on the concentric pulley 49.
Thus, when one of the pair of winding pulleys 57 and 58 and the concentric pulley 49 is rotated, the pair of winding pulleys 57 and 58 and the concentric pulley 49 are fixed to each other. By the rotation, the other of the pair of take-up pulleys 57 and 58 and the concentric pulley 49 is rotated.

The constant load spring means 53 includes a pair of constant load springs 51 and 52 and a pair of constant load springs 51 and 52.
And a pair of rotatable flanged drums 61 and 62 to which the other ends of the constant load springs 51 and 52 are fixed.

Each of the drums 61 and 62 disposed on both sides of the concentric pulley 49 in the left-right direction of FIG.
The support shafts 63 and 64 are fixed to a mounting plate 65 erected on the support plate 24.

The take-up pulleys 57 and 58 and the shaft 54 to which the concentric pulley 49 is fixed are rotatably supported by a mounting plate 65 and are arranged so as to pass through the mounting plate 65. It is designed to be rotated by rotation of any one of the concentric pulleys 49 and 57 and 58.

Each of the wires 45 and 46 is attached to a mounting plate 65.
The wire 45 extends through the left and right side plate portions 66.
And 46, a stopper 67 is fixed to abut against the side plate 66 to prevent the winding pulleys 57 and 58 from winding the wires 45 and 46 more than necessary.

The lifting means 5 having the constant load springs 51 and 52 is not less than the lowering force based on the maximum load of the storage shelf 2 including the stored articles, but is of such an extent that the storage shelf 2 can be easily lowered manually. Is applied to the storage shelf 2 via the wires 45 and 46. Therefore, the lifting means 5 applies a downward force to the storage shelf 2 manually without the storage shelf 2 being held by the holding means 6. Unless this is done, the storage shelf 2 is raised to the raised position shown in FIG.

As shown in FIG. 7, the holding means 6 includes a coil spring 7 as an elastic body disposed in a hole 71 of the side frame 22.
2 and the side frame 2 elastically urged by the coil spring 72.
The steel ball 73 as an engagement protrusion provided rotatably so as not to come out of the second hole 71 and is engaged with the steel ball 73 when the storage shelf 2 is lowered and disposed at a lower position. The receiving recess 74 provided on the outer surface 31 of the side plate 11 of the storage shelf 2 and the spring receivers 75 and 76 disposed in the hole 71 as described above. A part of the steel ball 73 protrudes from the inner side surface 36 of the side frame 22 to the outside of the hole 71.

When the holding shelf 6 is manually lowered (pulled down), after the steel ball 73 is once pushed into the hole 71 on the outer surface 31 of the side plate 11, the holding shelf 2 is moved to the lower position shown in FIG. Is moved to the engaged recess 7.
4, the engagement between the steel ball 73 and the side plate 11 in the engaged recess 74 prevents the manual downward force from being applied to the storage shelf 2. Regardless, the storage shelf 2 is held at the lower position shown in FIG.

The holding means 6 having such a configuration is preferably provided in the same manner on the side plate 12 side.
And 12 may be provided only in one of them.

As shown in FIGS. 5 and 6, the resistance generating means 7 includes a disk-shaped rotating body 82 having a plurality of concentrically arranged annular projections 81 on both side surfaces, and each of the projections 81 comprises: A plurality of annular recesses 83 are provided on the inner surface,
2, a housing 85 as a stationary body opposed to the small gap 84, a viscous body, preferably a high-viscosity body 86 disposed in the small gap 84, and a shaft 54 and a rotating body 82. A one-way clutch 87 is provided.

The housing 85 is composed of integral halves 89 and 90 secured together by screws 88.
It is also fixed to the mounting plate 65 via a screw 88 so as not to rotate with the rotation of the rotating body 82.

The one-way clutch 87, on the other hand,
And the other end thereof is connected to a rotating body 82, and transmits the rotation of the shaft 54 when the storage shelf 2 is raised to the rotating body 82, and transmits the rotation of the shaft 54 when the storage shelf 2 is lowered to the rotating body 82. The shaft 54 is caused to idle with respect to the rotating body 82 when the storage shelf 2 is lowered so as not to be transmitted to the housing 82.

When the rotating body 82 is also rotated by the rotation of the shaft 54 when the storage shelf 2 is lifted,
The highly viscous body 86 disposed in the minute gap 84 between the rotating body 82 and the housing 85 is viscously sheared, and a resistance (viscous shear resistance) based on the shearing gives a resistance to the ascending of the storage shelf 2 to accommodate the viscous shear. When the shaft 54 is idled with respect to the rotating body 82 when the shelf 2 is lowered, the high-viscosity body 86 is not sheared, and no resistance is given to the lowering of the storage shelf 2. Resistance by the resistance generation means 7 (viscous shear resistance)
Becomes larger as the rotation speed of the rotating body 82, in other words, the rising speed of the storage shelf 2 increases.

In the vertically movable storage shelf 1 in which the frame 3 is mounted on a wall or the like, when a manual downward force is applied to the storage shelf 2 via the handle 8 at the upper position shown in FIG. ,
The storage shelf 2 pulls the wires 45 and 46 downward,
Winding pulleys 57 and 58 for the wires 45 and 46
The guide means 4 includes rotation of the concentric pulley 49 due to rotation of the take-up pulleys 57 and 58 based on unwinding from the reel, and winding of the constant load springs 51 and 52 onto the concentric pulley 49 while being superimposed on the concentric pulley 49 based on this rotation. When it is guided and lowered to reach the lower position shown in FIG. 8, even if the hand is released from the handle 8 and the manual downward force is not applied to the storage shelf 2, it is held at that position by the holding means 6. Is done. The rotation of the shaft 54 based on the downward pulling of the wires 45 and 46 causes the one-way clutch 87 to rotate the rotating body 8.
When the storage shelf 2 is lowered, the resistance generating means 7 does not generate a resistance force based on the viscous shear resistance, and therefore, when the storage shelf 2 is lowered, the resistance generation means 7 does not generate the resistance force. 7 without resistance.

After an article is taken in and out of the storage shelf 2 set at the lower position, an upward force enough to release the holding by the holding means 6 is applied to the storage shelf 2 via the handle 8 or directly. When applied, the storage shelf 2 rotates the concentric pulley 49 in the opposite direction to the above by the elastic rewinding force of the constant load springs 51 and 52 to the drums 61 and 62 even when the manual upward force is no longer applied. Winding pulleys 57 and 5
8 is also rotated in the opposite direction, and the wires 45 and 46 are wound on the winding pulleys 57 and 58, respectively, so that the wires 45 and 46 which are pulled upward naturally automatically rise and are shown in FIG. It is arranged in an upper position.

The rotation of the shaft 54 for pulling the wires 45 and 46 upward by the rotation of the concentric pulley 49 based on the spring force of the constant load springs 51 and 52 is performed by the one-way clutch 8.
As a result, the resistance generating means 7 generates a resistance force based on the viscous shear resistance, and as a result, the rise of the storage shelf 2 causes the generation of the viscous shear resistance by the resistance force generating means 7. It is performed with. Therefore, even if the load of the storage shelf 2 including the article changes due to the loading and unloading of the article, the rise of the storage shelf 2 is appropriately braked by the resistance generating means 7.

According to the up-and-down type storage shelves 1, after the articles are stored and taken out, the holding by the holding means 6 is released, so that the storage shelves 2 are naturally moved by the unwinding force of the constant load springs 51 and 52. Can be raised to heights,
In addition, when the storage shelf 2 is raised by the raising means 5, the resistance generating means 7 generates a resistance force against the rise based on the viscous shear resistance. Regardless of the load fluctuation of the shelf 2,
Can be kept almost constant, so that the collision at a high place of the storage shelf 2 and the generation of loud noise can be eliminated,
It is possible to prevent the articles stored in the storage shelf 2 from being damaged.

In addition, according to the lifting type storage shelf 1, since the resistance force generating means 7 is shared via the shaft 54 with the wires 45 and 46 connected to both upper sides of the storage shelf 2, The means 5 and the resistance generating means 7 can be compactly installed on the upper part of the storage shelf 2, and the cost can be significantly reduced.

In the liftable storage shelf 1 of this embodiment, the resistance generating means 7 is constituted by including the rotating body 82 having the projection 81 and the housing 85 having the recess 83, but instead of this. A disk-shaped rotator 82 having no projection 81 and a recess 83
The housing 85 having no housing may constitute the resistance generating means 7, and the holding means 6 is not limited to the one having the steel ball 73 as described above.
The holding of the holding means 6 may be released in conjunction with the operation (gripping) of the lifting means. Further, the lifting means may be adjusted by using a constant load spring means 53 having an adjusting mechanism so that the lifting force can be adjusted. 5 may be configured.

[0045]

According to the present invention, it is possible to automatically raise the storage shelf to a high place after storing and unloading articles, and furthermore, the storage shelf can be raised irrespective of the change in load. It is possible to provide a vertically movable storage rack that can suppress the speed to be substantially constant, and can eliminate a collision at a high place of the storage rack and generation of loud noise.

[Brief description of the drawings]

FIG. 1 is a perspective view of a preferred example of an embodiment of the present invention.

FIG. 2 is a front view of the example shown in FIG.

FIG. 3 is a plan view of a part of the example shown in FIG. 1;

4 is a sectional view taken along line IV-IV shown in FIG.

FIG. 5 is an explanatory rear view of a part of FIG.

FIG. 6 is an explanatory sectional view of the resistance generating means shown in FIG. 5;

FIG. 7 is an explanatory diagram of a holding unit of the example shown in FIG. 1;

FIG. 8 is an operation explanatory diagram of the example shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevating storage shelf 2 Storage shelf 3 Frame 4 Guiding means 5 Elevating means 6 Holding means 7 Resistance generating means

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroshi Yamamoto 1118 Ideniwa, Ritsuto-cho, Kurita-gun, Shiga Prefecture F-term in Oiles Industry Co., Ltd. Shiga Plant (reference) 3B060 EA02 3F022 FF26 MM01 MM51

Claims (11)

[Claims] 1. A storage shelf which can be raised and lowered, a lifting means for raising the storage shelf, and a resistance generating means for generating a resistance force against the lifting of the storage shelf by the lifting means based on the viscous shear resistance. The ascending means has a pair of flexible elongate bodies having one end connected to each of the upper sides of the storage shelf, and the other end of each elongate body connected to each other. A winding means for winding the long body, a concentric pulley arranged concentrically with a winding axis of the winding means, one end of which is connected to the concentric pulley, and which is wound on the concentric pulley. Constant load spring means having at least one constant load spring for generating a lifting force for raising the storage shelf, and a long body arranged concentrically with the winding axis of the winding means and formed by the winding means Rotatable rotated by winding A lifting shaft, wherein the resistance generating means is configured to generate a resistance force against rotation of the shaft of the lifting means in raising the storage shelf based on the viscous shear resistance. 2. The winding means has at least one winding pulley for winding each elongated body, and one of the winding pulley and the concentric pulley is one of the winding pulley and the concentric pulley. The lifting storage shelf according to claim 1, wherein, when rotated, the other of the take-up pulley and the concentric pulley is rotated by the rotation. 3. The winding means has a pair of winding pulleys for winding each elongated body, and the pair of winding pulleys and the concentric pulleys include a pair of winding pulleys and a concentric pulley. The lifting storage shelf according to claim 1, wherein, when one of the pair is rotated, the other rotates one of the pair of take-up pulleys and the concentric pulley. 4. The up-and-down type storage shelf according to claim 2, wherein the take-up pulley and the concentric pulley are arranged concentrically with a shaft and fixed to the shaft. 5. The constant load spring means comprises a pair of constant load springs and a pair of rotatable drums around which each of the pair of constant load springs is wound. The lifting storage shelf according to claim 1. 6. A resistance generating means is provided between a rotating body, a stationary body opposed to the rotating body with a minute gap, a viscous body disposed in the minute gap, and a shaft and the rotating body. The lifting storage shelf according to any one of claims 1 to 5, further comprising a one-way clutch provided. 7. The one-way clutch transmits the rotation of the shaft when the storage shelf is raised to the rotating body, and causes the shaft to idle with respect to the rotating body when the storage shelf is lowered.
Elevating storage shelves as described in. 8. The up-and-down type storage shelf according to claim 1, further comprising a handle attached to the storage shelf and for manually lowering the storage shelf. 9. It further comprises a frame body on which the storage shelves are arranged so as to be movable up and down, and guide means for guiding the storage shelves up and down.
9. The elevating device according to claim 1, wherein the guide unit includes a roller attached to a side surface of the storage shelf, and a groove provided in the frame so that the roller is disposed. Type storage shelf. 10. The liftable storage shelf according to claim 1, further comprising holding means for holding the storage shelf releasably at a lower position. 11. The holding means includes: an engaging projection elastically urged; and an engaged recess engaged with the engaging projection when the storage shelf is lowered and disposed at a lower position. The lifting storage shelf according to claim 10, comprising: