JPH0581532A - Automatic pulling out device for article housing case - Google Patents

Abstract

PURPOSE:To obtain the inexpensive automatic pulling out device of a particle housing case whose constitution is very simple, and whose volumetric efficiency is excellent. CONSTITUTION:This device is equipped with rolling bearings 3 and 3A shaft- supported by the both outsides of the rare part of a particle housing case 6, and the both insides of the lower part of the front edge of a housing opening 1a of a housing frame 1 which houses the pertinent particle housing case, lock mechanism which houses and restrains the particle housing case 6 in the housing frame 1, and lock releasing means which releases the lock of the lock mechanism. And also, this device is equipped with a guide rail 2 having a first slope A which guides the pulling out of the particle housing case 6 while being interlocked with the lock release by the lock releasing means, and applies a traveling activating force to a case pulling out direction by utilizing the own- weight of the particle housing case 6, and a second slope B which automatically pulls out the particle housing case by the pertinent activating force, and a stopper 5 which stops the housing case 6 at a prescribed pulling out position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic withdrawal device for an article storage container which can automatically pull out the article storage container from the storage frame by utilizing the weight of the article storage container.

[0002]

2. Description of the Related Art Conventionally, an automatic withdrawal device for an article storage container such as a drawer used in an automatic cash register or the like is unlocked by spring elasticity obtained by compressing a long coil spring arranged on the back surface of the storage container. It is common practice to interlock and automatically pull out the storage container.

[0003]

However, since the conventional example is constructed as described above, the length of the coil spring becomes longer according to the distance to draw out the container, and the container is arranged to house the container. There was a problem that a long space that had nothing to do with the purpose was needed on the back of the, and the depth of the storage frame became excessive.

The present invention has been made in order to solve the problems of the conventional example as described above, and in order to perform automatic withdrawal, automatic withdrawal is performed between the back plate of the article storage container and the rear panel of the storage frame. An object of the present invention is to provide an automatic withdrawal device for an article storage container, which has an extremely high volume efficiency and requires almost no space for disposing a mechanism for performing the operation.

[0005]

Therefore, the automatic withdrawal device for an article storage container according to the present invention is provided on the outer sides of the rear sides of the article storage container and below the front edge of the storage opening of the storage frame for storing the article storage container. Rolling bearings that are axially supported respectively on both insides, a lock mechanism for storing and locking the article storage container in the storage frame, and a lock release means for releasing the lock of the lock mechanism are provided. The first gradient and the first gradient that guide the pulling out of the article storage container in conjunction with the release of the lock by the A guide rail, which has a second slope for automatically pulling out and running the article storage container continuously by a running start force, and a guide rail supported and fixed on both inner sides of the storage frame, and a predetermined withdrawal stop of the article storage container. By providing a stopper for stopping the position it is intended to achieve the object.

[0006]

The automatic withdrawal device for an article storage container according to the present invention having the above-described structure operates in conjunction with the unlocking means for unlocking the article storage container from the storage frame so as to operate on both sides of the rear portion of the article storage container. In the rolling bearing, a force of approximately 1/2 of the weight of the article storage container applied to the rolling bearing is mechanically released between the first steep slope of the guide rail and the forward direction, that is, the pull-out direction. The traveling of the article storage container is started, guided by the guide rail, and the desired initial traveling speed is given. This initial speed is maintained and accelerated at the continuous second gradient, and the rolling of the rolling bearings supporting the article storage container causes the article storage container to travel extremely smoothly and automatically in the forward direction, that is, the withdrawal direction, and the desired withdrawal stop is performed. It is stopped by the stopper at the position.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (Structure) FIG. 1 is a sectional side view of a main part of a storage frame of an article storage container showing an embodiment of the present invention, FIG. 2 is a perspective view of a main part of an article storage container of the embodiment, and FIG. FIG. 3 is a perspective view of a main part of a lock mechanism of the article storage container of FIG.

In FIG. 1, 1 is a storage frame for storing a drawer 6 which is an example of an article storage container, 1a is a storage opening portion of the storage frame 1, and 2 is a cross-section having a cross section supported and fixed to both inner sides of the storage frame 1. It is a character-shaped guide rail and has a steep inclination angle from the rear end of the bottom side 2a of the guide rail 2 that stands upright from the inside of the storage frame.
Gradient A and a second gradient B with a gentle inclination angle following the gradient A
Is formed and is fixed inside the storage frame 1. A front end portion of the first slope A of the guide rail 2 is notched, and a rolling bearing (hereinafter referred to as a bearing) 3 is rotatably supported by a notched portion 2b on the inner side of the storage frame 1 and a support shaft 4 on both sides of the inner frame 3a. The outer ring 3b is supported and fixed on the outer periphery of the outer ring 3b at positions where both sides of the drawer 6 are movably held. Reference numeral 5 is a stopper for positioning the drawer position of a drawer 6 formed by bending a desired position of the fixed side of the guide rail 2 with the housing frame 1. Also,
2c is the upper side of the guide rail 2 facing the second gradient B and having both ends cut away.

2 and 3, 6a is an end plate of the drawer 6, 6b is a side plate, 6c is a back plate, and 6d is a bottom plate. On both sides of the side plate 6b, the upright bottoms 7a of the L-shaped holding metal fittings 7 are provided. Upright base 2 of the second slope B of the guide rail 2
A rolling bearing (hereinafter referred to as a bearing) 3A is rotatably supported by a notch 7b formed by notching a bottom side 7a of a rear end of the inner ring 3c by a spindle 4A on both sides of a side plate 6b. It is springing out and pivotally supported. The outer circumference of the outer ring 3d of the bearing 3A is the bottom side 2a of the guide rail 2.
The drawer 6 is supported by the bearings 3 and 3A so that it can travel in the EF direction in the figure.

When the bearing 3A travels on the second slope B, the upper side 2c of the guide rail 2 prevents the bearing 3A from jumping upward, so that the drawer 6 can be smoothly taken in and out. Is becoming Reference numeral 8 denotes a lock release pin (hereinafter referred to as a release pin) which is disposed in the end plate 6a so as to be vertically movable and has a tip portion protruding from the bottom surface S of the end plate 6a. The release pin 8 is provided with a hole 6e on the bottom surface of the end plate 6a and a hole 9a provided on an L-shaped holding metal fitting 9 fixed inside the end plate 6a.
And 8 are slidably held in the vertical direction, that is, in the GH direction in the figure, and a hole 8a is bored at a right angle, that is, in the horizontal direction at the upper end inserted into the hole 9a holding the release pin 8. An L-shaped unlocking lever 10 having a distal end slidably inserted and held in the hole 8a is provided. 11 has an L-shaped tip, a lock pawl 11a is formed at the bent end, and a bending piece 11b is formed at the rear end side, and the unlocking lever is provided on the bending piece 11b. 10 is a lock lever having a hole 11c slidably holding one end of the lock lever 11, and the lock lever 11 has a hole 6a on the end plate 6a on the lock claw 11a side.
g and a holding piece 12 that holds the rear portion of the lock lever 11 are held slidably in the horizontal direction, that is, in the I-J direction in the drawing.

On the end plate 6a of the bent portion 10a of the unlocking lever 10, an L-shaped support fitting 13 for rotating the unlocking lever 10 in the R direction in the drawing as the release pin 8 is pushed is attached to the end plate 6a. The support lever 13 is fixed, and a support hole 13b is bored in the upright portion 13a of the support fitting 13, and this support 13b serves as a fulcrum of rotation, and the release pin 8 is pushed upward, that is, in the G direction in the drawing, so that the unlocking lever 10 moves to R. By rotating the lock lever 11 in the direction I in the figure, the lock claw 11a is removed from the lock portion (not shown) of the storage frame 1 to release the lock. Reference numeral 14 denotes a coil spring (hereinafter referred to as a spring), one end of which is hooked to the end plate 6a and the other end of which is hooked to the tip end portion of the lock lever 11 to lock the lock claw 11.
When the drawer 6 is stored in the storage frame 1, the drawer 6 is stored and locked in the storage frame 1 when the drawer 6 is stored in the storage frame 1.

A lock mechanism C is formed by the lock lever 11, the spring 12, and a locking portion (not shown), and a lock is released by the release pin 8, the unlocking lever 10, and the support hole 13b of the support fitting 13 of the lock lever 11. Means D are configured. W is a load applied to the bearing 3A of the drawer 6, W _A is a component force of the load W perpendicular to the first gradient A, and W _B is a component force acting in the direction of pulling out the drawer 6 along the gradient A. ..

(Operation) An operation will be described based on the above configuration. First, when the release pin 8 is pushed up, the unlocking lever 1
0 is rotated in the R direction in FIG. 2 against the bias of the spring 13 with the support hole 13b as a fulcrum. With this rotation, the lock lever 11 slides in the direction I in the figure, so that the lock claw 11a is disengaged from the locking portion of the storage frame 1 (not shown).

As a result, the drawer 6 is unlocked, and at the same time, the weight of the drawer 6 is divided by the weight of the drawer 6 in the drawing direction along the slope A applied to the bearing 3A riding on the first slope A when locked. The force W _B causes the drawer 6 to start forward, that is, in the E direction in the figure, and the bearings 3 and 3A rotate to start traveling. This running force is maintained and accelerated by the subsequent second gradient B, and the drawer 6 is automatically drawn out. When reaching a predetermined position, the outer ring 3d of the bearing 3A comes into contact with the side end of the stopper 5 and the drawer 6 is pulled out. The traveling is stopped, and the vehicle is pulled out and held at a predetermined position.

At this time, an upward rotation moment acts on the bearing 3A portion due to the own weight of the drawer 6 with the bearing 3 as a fulcrum,
The upper side 2c of the guide rail 2 is surely restrained from moving upward, and the drawer 6 is stably held in a state of being drawn to the front surface of the storage frame 1.

Next, when the drawer 6 is pushed in the F direction in the drawing to reach the storage position, the lock claw 11a of the lock lever 11 which is always urged by the spring 14 in the J direction in the drawing is stored in the storage frame 1 (not shown). The storage frame 1 is engaged with the locking portion, and the bearing 3A is mounted on a predetermined position of the first slope A where the bearing 3A can be automatically pulled out.
Stored and locked in. In this way, the automatic pull-out of the drawer 6 can be performed very smoothly by utilizing the own weight of the drawer 6 without requiring a special automatic pull-out mechanism or parts.

This makes it possible to obtain an automatic drawer device for the drawer 6 which is extremely simple in structure, has a small number of parts, is inexpensive, operates reliably, and has excellent volumetric efficiency.

The lock mechanism C of the drawer 6 and the lock release means D thereof are not limited to this embodiment, and an appropriate lock mechanism and lock release means may be provided at desired positions.

Further, if a cushioning material is added to the side end of the stopper 5, the automatic pulling out can be stopped very quietly.

Further, when the drawer 6 is light and the inclination angle of the guide rail is too large to obtain the running force of the automatic drawer, a load plate may be arranged at the rear portion of the drawer 6.

Furthermore, it goes without saying that the application of the present invention is not limited to drawers, but can be applied to any article storage container and storage frame for storing the same.

[0022]

As described above, according to the present invention, the guide rail for pulling out the article storage container from the storage frame is provided with the traveling starting force for pulling out the article storage container by utilizing the own weight of the storage container. There is provided a first gradient and a second gradient for automatically traveling the article storage container by the traveling start force given by the first gradient, and the second inclination for automatically traveling the article storage container is automatically linked with unlocking of the storage container to the storage frame. Since the drawer can be pulled out and the positioning is stopped by the stopper at a predetermined pull-out position, the article storage container can be automatically and smoothly pulled out with an extremely simple structure.

As a result, it is possible to obtain an automatic withdrawal device for an article storage container which is very inexpensive and has extremely excellent volumetric efficiency.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a main part of an automatic withdrawal device for an article storage container according to an embodiment of the present invention.

FIG. 2 is a perspective view of the essential parts of the article storage container of the above embodiment.

FIG. 3 is a perspective view of a main part of the lock mechanism of the article storage container according to the embodiment.

[Explanation of symbols]

 1 Storage Frame 2 Guide Rails 3, 3A Rolling Bearing 5 Stopper 6 Article Storage Container A First Gradient B Second Gradient C Lock Mechanism D Lock Release Means

Claims (1)

[Claims] 1. Rolling bearings, which are axially supported respectively on both outer sides of a rear portion of an article storage container and on both inner sides below a front edge of a storage opening of a storage frame for storing the article storage container, and the article in the storage frame. A lock mechanism for storing and locking the storage container and a lock releasing means for releasing the lock of the lock mechanism are provided, which guides the withdrawal of the article storage container in conjunction with the release of the lock by the lock releasing means and the article. A first gradient for imparting a traveling activation force in the withdrawal direction of the accommodation container by its own weight and a traveling activation force imparted by the first gradient for continuously and automatically pulling out the article accommodation container And a guide rail that is supported and fixed to both insides of the storage frame, and a stopper that stops the article storage container at a predetermined withdrawal stop position. Automatic withdrawal device.