JP2002177064A - Lifting type housing rack unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lifting type housing rack which enables lifting thereof naturally up to an elevated point after the housing or taking out of articles and moreover, eliminates the bumping of the housing rack at the elevated point and the generation of a big noise by restricting the lifting speed thereof to almost fixed level regardless of changes in load. SOLUTION: The lifting type housing track unit 1 includes a freely liftable housing rack 2, a frame body 3 on which the housing rack 2 is so arranged as to lift freely, a lifting means 5 for lifting the housing rack 2, a holding means 6 for removably holding the housing rack 2 at a lower position and a resisting force generation means 7 which generates a resisting force to counter any rise of the housing rack 2 made by the lifting means 5 based on a viscous shearing resistance.

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 suppressed to be substantially constant regardless of the variation of the load, and thus, a lifting-type storage shelf capable of eliminating a collision at a high place of the storage shelf and generating a loud noise is provided. It is in.

[0006]

According to the present invention, there is provided an elevating type storage shelf, comprising: a storage shelf which can be moved up and down; a lifting means which raises the storage shelf; and a holding means which releasably holds the storage shelf at a lower position. 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.

[0007] According to the liftable storage shelf of the present invention, the holding by the holding means is released after the articles are stored and taken out, so that the storage shelf is naturally raised to a high place by the lifting means. In addition, since the resistance generating means generates a resistance force based on the viscous shear resistance against the rise of the storage shelf by the ascending means, the resistance generation means is adapted to the load fluctuation of the storage shelf including the storage article. Regardless, the rate of ascent of the shelves can be kept almost constant,
It is possible to eliminate the collision at a high place of the storage shelf and the generation of loud noise.

In the present invention, the lifting means includes a constant load spring wound at one end and a rotatable shaft which is rotated by unwinding and rewinding the constant load spring. The resistance generating means includes a rotating body, a stationary body opposed to the rotating body with a minute gap, a viscous body arranged in the minute gap, a rotatable shaft and the rotating body. And a one-way clutch interposed in the lifting means, wherein the ascending means further includes a drum around which the other end of the constant load spring is fixed and the constant load spring is wound, The drum may be fixed to the rotatable shaft and arranged concentrically with the rotatable shaft, and the one-way clutch transmits the rotation of the rotatable shaft when the storage shelf is lifted to the rotating body, and When the shelf descends, the rotatable shaft is It may be adapted to idle Te.

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

[0010] The lifting storage shelf of the present invention may further include a handle attached to the storage shelf and for manually lowering the storage shelf, and such a handle may be provided on a front surface of the storage shelf. Or alternatively or together with the lower surface of the storage shelf.

Further, the lifting type storage shelf according to the present invention further comprises a frame body on which the storage shelf is arranged so as to be able to move up and down, and guide means for guiding the storage shelf up and down. May be provided with a roller attached to the side surface of the frame, and a groove provided in the frame so that the roller is disposed. The guide means can smoothly move the storage shelf up and down.

In the present invention, the frame body is provided with a pair of side frames, and the holding means is elastically urged so that the engaging projections provided on the side frames and the storage shelf are lowered. And a receiving recess provided on the storage shelf so as to be engaged with the engaging projection when arranged at the lower position, wherein the engaging projection is a sphere, for example, When 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.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 9, an up-and-down type storage shelf 1 of this embodiment includes 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 A lifting 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 includes left and right side plates 11 and 1.
2, doors 14 and 15 rotatably attached to each of the side plates 11 and 12 via hinges (hinges), and also have a handle 13 on the front surface, respectively, and a bottom plate fixed to the side plates 11 and 12 16 and an upper plate (ceiling plate) 17 fixed to the side plates 11 and 12, and 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
The storage shelf 2 includes a pair of side frames 22 and 2
It is arranged to be able to move up and down between three.

Since each of the guide means 4, the lifting means 5, the holding means 6 and the resistance force generating means 7 has the same structure and is arranged on each of the side frames 22 and 23, one of the guides will be hereinafter described. Each of the means 4, the lifting means 5, the holding means 6, and the resistance generating means 7 will be described in detail, and the other will be illustrated or described with the same reference numerals as necessary.

The guide means 4 is provided on a side surface of the storage shelf 2, that is, on an outer surface 31 of the side plate 11 of the storage shelf 2 via shafts 32 and 33 so as to be vertically separated from each other and rotatably mounted. Rollers 34 and 35 are provided, and grooves 37 are provided on the inner side surface 36 of the side frame 22 of the frame 3 so as to be disposed in such a manner as to extend the rollers 34 and 35. The guide means 4
When the storage shelf 2 is moved up and down, the rollers 34 and 35 roll on the side frame 22 in the groove 37 to guide the storage shelf 2 up and down.

One end of the lifting means 5 is connected to the upper plate 17 of the storage shelf 2 via an L-shaped bracket 41, and the wound constant load spring 42 and the other end of the constant load spring 42 are fixed. And a drum 43 with a flange around which the constant load spring 42 is wound, and penetrating the drum 43 at a site having a hexagonal cross section, and rotating by unwinding and rewinding the constant load spring 42. And a rotatable shaft 44 fixed to the drum 43. The drum 43 is arranged concentrically with the rotatable shaft 44.
The bearings 45 and 46 are rotatably supported by bearings 45 and 46, and are fixed to the ceiling frame 21.

The ascending means 5 is used for storing the storage shelves 2 containing the stored articles.
Is higher than the lowering force based on the maximum load of the storage shelf 2, but a rising force that can easily lower the storage shelf 2 by hand is applied to the storage shelf 2 by the constant load spring 42. Storage shelf 2 which is not held by
As long as no downward force is applied, the storage shelf 2 is raised to the raised position shown in FIG.

As shown in FIG. 8, the holding means 6 includes a coil spring 5 as an elastic body disposed in a hole 51 of the side frame 22.
2 and the side frame 2 elastically urged by the coil spring 52.
The steel ball 53 as an engagement protrusion provided rotatably so as not to come out of the second hole 51 and engaged with the steel ball 53 when the storage shelf 2 is lowered and disposed at a lower position. As described above, the engagement recess 54 provided on the outer surface 31 of the side plate 11 of the storage shelf 2 and the spring receivers 55 and 56 arranged in the hole 51 are provided. A part of the steel ball 53 protrudes from the inner surface 36 of the side frame 22 to the outside of the hole 51.

When the holding shelf 6 is manually lowered (pulled down), after the steel balls 53 are once pushed into the holes 51 on the outer surface 31 of the side plate 11, the holding shelf 2 is moved to the lower position shown in FIG. When the steel ball 53 is moved to
4, even if manual downward force is no longer applied to the storage shelf 2 by the engagement between the steel ball 53 and the side plate 11 in the engaged recess 54, Regardless, the storage shelf 2 is held at the lower position shown in FIG.

As shown in FIG. 5, FIG. 6, and FIG.
Disk-shaped rotator 62 having both sides 1 and projections 61
, A housing 65 as a stationary body opposed to the rotating body 62 with a minute gap 64, and a viscous body arranged in the minute gap 64; Preferably, a high-viscosity member 66 and a one-way clutch 67 interposed between the rotatable shaft 44 and the rotating member 62 are provided.

The housing 65 is made up of integral halves 69 and 70 secured together by screws 68.
It is also fixed to the bearing 45 via a screw 68 so as not to rotate with the rotation of the rotating body 62.

The one-way clutch 67 is connected to one end 75 of the rotatable shaft 44 on the one hand and to the rotating body 62 on the other hand, and is connected to the rotatable shaft 4 when the storage shelf 2 is raised.
4 is transmitted to the rotating body 62, and the rotation of the rotatable shaft 44 during the lowering of the storage shelf 2 is not transmitted to the rotating body 62. To spin.

The resistance generating means 7 is disposed in the minute gap 64 between the rotating body 62 and the housing 65 when the rotating body 62 is rotated by the rotation of the rotatable shaft 44 when the storage shelf 2 is raised. The viscous body 66 is viscously sheared, and a resistance (viscous shear resistance) based on the shearing gives a resistance force to the ascending of the storage shelf 2, and the rotatable shaft 4
When the rotating member 4 idles with respect to the rotating member 62, the high-viscosity member 66 is not sheared, so that no resistance is given to the rise of the storage shelf 2. The resistance (the viscous shear resistance) of the resistance generating means 7 increases as the rotation speed of the rotating body 62, in other words, as the ascending speed of the storage shelf 2 increases.

The elevating type storage shelf 1 is used with the frame 3 attached to a wall or the like. In the liftable storage shelf 1, when a manual downward force is applied to the storage shelf 2 via the handle 8 at the upper position shown in FIG. 1, the storage shelf 2 is guided with the unwinding of the constant load spring 42. When the guide 4 is lowered by the means 4 and reaches the lower position shown in FIG. 9, 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. After the articles are 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. The storage shelf 2 is automatically raised automatically by the rewinding force of the constant load spring 42 even when the manual upward force is no longer applied, and is placed at the upper position shown in FIG. Even if the load of the storage shelf 2 including the article changes due to the removal and insertion of the article, the rise of the storage shelf 2 is appropriately braked by the resistance generating means 7.

As described above, according to the up-and-down type storage shelf 1, the holding by the holding means 6 is released after the storage and removal of the articles, so that the storage shelf 2 is naturally moved by the unwinding force of the constant load spring 42. In addition, when the storage shelf 2 is raised by the lifting means 5, the resistance generating means 7 generates a resistance force against the rise based on the viscous shear resistance. Therefore, regardless of the load fluctuation of the storage shelf 2 including the storage items, the rising speed of the storage shelf 2 can be suppressed to be substantially constant. Can be eliminated, and the articles stored in the storage shelf 2 can be prevented from being damaged.

In the liftable storage shelf 1 of the present embodiment, the resistance generating means 7 is constituted by including the rotating body 62 having the projection 61 and the housing 65 having the recess 63, but instead of this. A disk-shaped rotator 62 having no projection 61;
The resistance generating means 7 may be constituted by the housing 65 having no steel ball 53. The holding means 6 is not limited to the one having the steel ball 53 as described above.
The holding of the holding means 6 may be released in conjunction with the operation (grasping) of the lifting means 5. Further, the lifting means 5 may be adjusted by using a constant load spring 42 having an adjusting mechanism so that the lifting force can be adjusted. May be configured.

[0031]

According to the present invention, it is possible to automatically raise the storage shelf naturally to a high place by releasing the holding means after storing and taking out the articles. Regardless, the ascending speed of the storage shelf can be suppressed to be substantially constant, and thus, a vertically movable storage shelf that can eliminate the collision of the storage shelf at a high place and the generation of loud noise can be provided.

[Brief description of the drawings]

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

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

FIG. 3 is a partially cutaway side view of the example shown in FIG. 1;

FIG. 4 is an enlarged front view of a lifting unit and a resistance generating unit shown in FIG. 2;

FIG. 5 is a partially cutaway explanatory view of the lifting means and the resistance generating means shown in FIG. 4;

FIG. 6 is an explanatory diagram of a lifting unit and a resistance generating unit shown in FIG. 4;

FIG. 7 is a partially enlarged explanatory view of the resistance generating means shown in FIG. 5;

FIG. 8 is an explanatory diagram of a holding unit of the example shown in FIG. 1;

FIG. 9 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 from the front page (72) Inventor Hiroshi Yamamoto 1118 Ideniwa, Ritsuto-cho, Kurita-gun, Shiga Prefecture F-term (reference) in the Okazu Industry Co., Ltd. Shiga Plant 3B060 EA02 3F022 FF26 MM51

Claims (7)

[Claims] 1. A storage shelf that can be raised and lowered, lifting means for raising the storage shelf, holding means for releasably holding the storage shelf at a lower position, and a resistance force against lifting of the storage shelf by the lifting means. A lifting and lowering type storage shelf comprising a resistance generating means for generating a resistance force based on viscous shear resistance. 2. The ascending means has one end connected to the storage shelf, and has a wound constant load spring, and a rotatable shaft which is rotated by unwinding and unwinding the constant load spring. The resistance generating means is interposed between the rotating body, a stationary body opposed to the rotating body with a minute gap, a viscous body arranged in the minute gap, and a rotatable shaft and the rotating body. The lifting storage shelf according to claim 1, further comprising a one-way clutch. 3. The lifting means further comprises a drum to which the other end of the constant load spring is fixed, and the drum around which the constant load spring is wound, wherein the drum is fixed to a rotatable shaft, and 3. The up-and-down type storage shelf according to claim 2, which is arranged concentrically with the universal shaft. 4. The one-way clutch according to claim 1, wherein the rotation of the rotatable shaft when the storage shelf is raised is transmitted to the rotating body, and when the storage shelf is lowered, the rotatable shaft is idled relative to the rotating body. 4. The lifting storage shelf according to 2 or 3. 5. The elevating storage shelf according to claim 1, further comprising a handle attached to the storage shelf and for manually lowering the storage shelf. 6. The apparatus further comprises a frame body on which the storage shelves are arranged so as to be able to move up and down, and guide means for guiding the storage shelves to move up and down.
The elevating device according to any one of claims 1 to 5, wherein the guide means 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 shelves. 7. The frame body has a pair of side frames, and the holding means is elastically urged, and the engaging projection provided on the side frame and the holding shelf are lowered to a lower position. The lifting storage shelf according to claim 6, further comprising: an engaged recess provided on the storage shelf so as to be engaged with the engagement projection when being arranged.