JPH04152598A - Drawer type device - Google Patents

Abstract

PURPOSE:To allow an electronic unit to be able to be drawn forward and rearward of a housing and to reduce an initial power by approaching the unit to the housing in an inserted state to allow the same polarity electrodes to be opposed, and securing one of a pair of magnets to an inner rail side and the other to an outer rail side so that a direction of a magnetic force coincides with a sliding direction of the unit. CONSTITUTION:An electronic unit 5 is approached to a housing in an inserted state to allow the same polarity electrodes to be opposed, and magnets 31, 32 are respectively secured to inner and outer rails 10, 20 so that a direction of lines of magnetic force coincides with a sliding direction of the unit 5, and hence when a stopper 41 of a front surface is opened and the unit 5 is lightly pulled to this side, the magnetic force of the magnet is applied. Accordingly, the unit 5 is started to move to this side. In order to draw the unit 5 rear of the housing, while the stopper 41 of the front surface remains set to a locking state, the stopper 42 of a rear surface may be operated.

Description

[Detailed Description of the Invention] [Summary] Regarding a drawer-type device that houses an electronic unit in a housing by using a slide bearing in which an inner rail and an outer rail fit together via balls, there is a pull-out device that houses an electronic unit in a housing. The aim is to provide a pull-out type device that allows the electronic unit to be pulled out even when the initial power is small, and the inner rail of the slide bear link is installed on one side of the housing side wall and the unit case side plate. , a device in which an electronic unit is housed in a drawer-type housing with an outer rail mounted on the other side;
In order to allow the rear plate of the unit case to lock and open freely, it is equipped with a stopper attached to the rear part of the housing, a magnet fixed to the inner rail side, and another magnet fixed to the outer rail side. The magnets are fixed such that when the electronic unit is pushed into the housing, the same poles are closely opposed to each other, and the direction of the magnetic field lines is aligned with the sliding direction of the electronic unit.

[Industrial application field]

The present invention relates to a drawer-type device that houses an electronic unit in a housing using a slide bearing in which an inner rail and an outer rail fit together via balls.

In the lower figure, reference numeral 5 denotes an electronic unit in which desired electronic components are assembled and mounted in an elongated box-shaped metal case.

2 is a casing that accommodates electronic units 5 in multiple stages.

The electronic unit 5 is a slide bearing (not shown) in which an inner rail and an outer rail fit together via balls.
It is designed to be housed in the housing l in a pull-out manner.

To be more specific, the case I has a vertical box shape with an open front, and the internal space is divided into several shelves.Inner rails are fixed to the inside of the case side wall of each shelf, facing each other. Outer rails that fit into the respective inner rails are fixed to the left and right unit case side plates of the electronic unit 5, so that the electronic unit 5 is pushed into the respective shelves of the housing 1 from the front.

In the above-mentioned slide bearing, the inner rail and the outer rail fit together through balls and perform relative linear sliding motion, so the frictional resistance is small and it is easy to pull out the electronic unit 5 from the housing or It has the advantage of requiring less force to push into the housing.

[Problem to be solved by the invention]

However, the slide bearing described above has a relatively large initial force (the force when the hole changes from static friction to rolling friction). Therefore, when pulling out the electronic unit 5 from the housing, it is necessary to first apply a strong force to pull the electronic unit.

When such a strong initial force is applied, there is a problem in that the electronic unit is pulled out to the front side of the housing due to inertia, and the inner rail and outer rail are disengaged from each other.

On the other hand, the conventional drawer-type device described above is configured so that the electronic unit can only be pulled out to the front side. However, when such a device is delivered to a customer, some customers require that the electronic unit be pulled out to the rear of the housing to perform maintenance and inspection of the electronic unit.

The present invention was created in view of the above points, and an object of the present invention is to provide a pull-out type device that can pull out an electronic unit from either the front or the rear of the housing and requires only a small initial force. It is an object.

[Means to solve the problem]

In order to achieve the above object, the present invention, as illustrated in FIG. 1, mounts an inner rail 10 of a slide bear link on one side of the housing side wall 2 and a unit case side plate 6S, and an outer rail 20 on the other side. In a device in which the electronic unit 5 is housed in a housing l in a pull-out manner, a stopper 41 is attached to the front surface of the housing l so that the unit case front plate 6F can be locked and opened.

Further, a stopper 42 is attached to the rear surface of the casing 1 so that the unit case rear plate 6B can be locked and opened.

On the other hand, a magnet 31 is fixed to the inner rail 10 side so as to face the electronic unit 5 pushed into the housing 1, and another magnet 32 of the same shape is attached to the outer rail 20 side.
to fix.

It is assumed that both of the magnets 31 and 32 are fixed so that the direction of the magnetic lines of force coincides with the sliding direction of the electronic unit 5, and the same poles are close to each other and face each other.

[Effect]

According to the present invention, by setting the stopper on the rear side of the casing to a locked state and opening the stopper on the front side of the casing, the electronic unit can be pushed in or pulled out from the front side of the casing.

Moreover, the electronic unit can be fixed by setting the stopper on the front part to a locked state while the electronic unit is pushed into the housing.

To pull it out to the rear of the casing, all you have to do is set the stopper on the front to the locked state and operate the stopper on the rear of the casing.

On the other hand, when the electronic unit is pushed into the housing, one of the pair of magnets is placed close to the inner rail side, and the other is placed so that the same poles face each other and the direction of the magnetic field line matches the sliding direction of the electronic unit. is fixed to the outer rail side, so a force is always acting on the electronic unit in the direction that the magnets of different polarities approach each other.

Therefore, when the stopper on the front part is opened and the electronic unit is lightly pulled toward the front, the magnetic force of the magnet is applied, so that the electronic unit starts to move toward the front.

Furthermore, when the stopper on the rear surface is opened and the electronic unit is slightly pulled backward, the magnetic force of the magnet is applied, so that the electronic unit starts moving backward.

That is, the initial power applied to the slide bearing can be small.

〔Example〕

The present invention will be specifically described below with reference to the drawings. Note that the same reference numerals indicate the same objects throughout the figures.

FIG. 1 is a sectional view of an embodiment of the present invention, in which (a) is a sectional view in a plan view, (b) is a sectional view in a front view of the main part, and (C) is a sectional view in a plan view of the main part. FIG. 2 is a perspective view of a slide bearing according to an embodiment of the present invention, and FIG. 3 is a perspective view showing essential parts of the present invention.

In the figure, a base plate 2I that is long in the front-rear direction when viewed from the front is attached to each of the left and right unit case side plates 6S of the box-shaped unit case, as shown in FIG. The outer rail 20 of the slide bearing is fixed to the flat part of the vertical plate member so that the sliding direction is oriented in the front and rear directions.

The outer rail 20 includes an elongated outer plate 22 and an outer plate 2.
2, and a large number of balls 24 arranged and held in a linear row on each V-shaped guide 23 so as to be freely rotatable. (See Figures 1(b) and 2) On the other hand, on the housing 1 side, a base plate 11 that is long in the front and back direction is provided on each of the inner surfaces of the housing side walls 2, as shown in Figure 2 in detail. Install it on this base plate 11 so that the sliding direction is oriented front and back.
The inner rail IO of the slide bearing is fixed.

The inner rail IO has a long and narrow inch plate 12 and an inch plate 1.
V-shaped guides 23 of the outer rail 20 on the upper and lower edges of the outer rail 20.
A pair of r-shaped guides 13 are formed to face each other. (See FIG. 1(b)) Then, connect the inner wall of the V-shaped guide 13 of the inner rail 10 to the outer rail 20.
The ball 24 is adapted to roll.

The above-mentioned outer rail 20 has elongated rectangular magnets 32 (two magnets in the figure) on the flat surface of the outer plate 22 so that the north pole faces the rear of the housing and the south pole faces the front of the housing. The arrangement is fixed.

That is, the direction of the magnetic force lines of this magnet 32 matches the sliding direction of the electronic unit 5.

On the other hand, another magnet 31 having the same shape as the Macnet 32 is arranged and fixed on the inch plate 12 of the inner rail 10 at a position close to and facing the magnet 32 when the electronic unit 5 is pushed into the housing 1. It is.

Similarly to the magnet 32 fixed to the outer rail 20, this magnet 31 also has its N pole facing the rear of the housing, and its S
The poles are arranged and fixed so that they face the front of the housing.

The housing 1 is equipped with a stopper as shown in FIGS. 1(a) and 3.

To be more specific, guide holes 3 each having a rectangular cross section are provided in the front portions of the left and right housing side walls 2, and a stopper 41 that is slidable in the left and right direction is inserted into each guide hole 3.

This stopper 41 is inserted into the guide hole 3 sufficiently deep (when inserted, the tip passes through the guide hole 3 and protrudes toward the electronic unit, and the unit case front plate 6F comes into contact with the inner surface of the tip and engages). Also, when the stopper 41 is pulled out halfway, it will come off from the unit case front plate 6F.

On the other hand, a stopper 42 is attached to the rear surface portions of the left and right side walls 2 of the case so that the unit case rear plate 6B can be locked and opened, similarly to the front surface portion.

Since the present invention is configured as described above, if the stopper 42 on the rear side of the housing 1 is set to the locked state and the stopper 41 on the front side is opened, the electronic unit 5 can be opened at the front side of the housing. It can be pushed into the housing l and pulled out from the housing 1.

Note that even if the electronic unit 5 is strongly pushed into the housing 1, the unit case side plate 6S comes into contact with the stopper 42 on the rear surface, so that the position of the electronic unit 5 is correctly regulated.

Moreover, the electronic unit 5 can be fixed by setting the stopper 41 on the front part to a locked state while the electronic unit is pushed into the housing.

In order to pull out the electronic unit 5 to the rear of the casing, the stopper 42 on the rear side can be operated while the stopper 41 on the front side is set in the locked state.

On the other hand, the magnets 31 and 32 are connected to the inner rail 10 so that when the electronic unit 5 is pushed into the housing, the magnets 31 and 32 are placed close to each other so that the same poles face each other and the direction of the magnetic lines of force matches the sliding direction of the electronic unit 5. and the outer rail 20, so if you open the stopper 41 on the front and lightly pull the electronic unit 5 toward you (for example, insert your hand into the handle provided on the lower front side of the electronic unit 5 and pull it). ), the magnetic force of the magnet is applied, so the electronic unit 5 starts moving toward the front side.

Furthermore, when the electronic unit 5 is pulled out to the rear of the housing 1, the electronic unit 5 similarly starts to move with a light force.

That is, the initial power applied to the slide bearing can be small.

Note that the stopper shown in the figure has a knob protruding outside the side wall of the housing, but the knob is placed on the electronic unit side without this, and when opened, the entire stopper including this knob is attached to the housing. If it is housed within the side wall,
The appearance becomes better.

〔Effect of the invention〕

As explained above, the present invention provides an apparatus in which an electronic unit is housed in a housing in a pull-out manner using a slide bearing, in which a front plate of the unit case has a stopper that can be freely locked and opened at the front of the housing. By installing stoppers on the rear surface of the housing that allow the rear plate of the unit case to lock and release freely, and by fixing magnets facing the inner and outer rail sides of the slide bearing, the housing This has excellent practical effects in that the electronic unit can be pulled out either forward or backward, and the housing position of the electronic unit can be determined in a predetermined manner.

In addition, when pulling out the electronic unit, the initial force applied to the electronic unit is not only small, but also there is less risk of the inner rail and outer rail becoming disengaged due to the force of the bow being pulled out (this helps prevent damage to the electronic unit). It has an excellent effect.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, (a) is a sectional view in plan view, (b) is a sectional view in front view of the main part, (C) is a sectional view in plan view of the main part, FIG. 3 is a perspective view of a slide bearing according to an embodiment of the present invention, FIG. 3 is a perspective view showing essential parts of the present invention, and FIG. 4 is a perspective view of a drawer-type device. In the figure, ■ is the housing, 2 is the side wall of the housing, 3 is the guide hole, 5 is the electronic unit, 6F is the front plate of the unit case, 6B is the rear plate of the unit case, 6S is the side plate of the unit case, IO is the inner rail, 11 and 21 are base plates, 12 are inch plates, 13 and 23 are V-shaped guides, 20 is an outer rail, 22 is an outer plate, 24 is a hole, 31 and 32 are magnets, and 41 and 42 are stoppers, respectively. Cb) (C) Town plan of an example of the flag of the present invention Figure 1: Figure 1: Figure 3: A scale diagram showing the essential parts of the invention Figure 4: The cross section of the drawing is a scale diagram showing the main parts of the invention

Claims (1)

[Claims] The electronic unit (
5) is housed in a housing (1) in a pull-out manner, a stopper (41) is attached to the front face of the housing (1) so that the unit case front plate (6F) can be locked and opened freely.
and a stopper (42) attached to the rear surface of the housing (1) so that the rear plate (6B) of the unit case can be locked and opened.
and the magnet (31) fixed to the inner rail (10) side.
) and another magnet (32) fixed to the outer rail (20) side, and both magnets (31, 32) hold the electronic unit (5) in a state where the electronic unit (5) is pushed into the housing (1). A drawer-type device characterized in that the same poles are closely opposed to each other and are fixed so that the direction of the magnetic lines of force coincides with the sliding direction of the electronic unit (5).