JPH03201499A - Overturning preventing leg and electronic equipment case provided therewith - Google Patents

Abstract

PURPOSE:To offer an electronic equipment case that a unit can be drawn out at an initial stage without keeping a roller in contact with a floor by a method wherein the height of an overturn preventing leg to a roller is so set to be shorter than the distance between the unit and the floor. CONSTITUTION:When a unit 2 is drawn out to keep a roller 5 off from an lower face 20 of a case 1, an overturn preventive leg 4 is rotated in a counterclockwise direction by the force of a spring 6 not only to enable the roller 5 to descend to a position toward a floor 9 but also to guide a fastener 13 of a metal piece 6 to the left end of a groove 31 pulling a stay 11 by rotation. Just after the unit is drawn out, the overturn preventive leg 4 is made to keep a space C from the floor 9 so as not to bring the roller 5 into contact with the floor 9 but also to be prevented from rotating in the direction of B engaging the fastener 13 of the metal piece 6 with the left end of the groove 31. Therefore, the unit 2 can be smoothly drawn out at an initial stage without keeping the roller in contact with the floor 9, and the overturn preventing leg 4 is tentatively fixed by the engagement of the fastener 13 with the groove 31.

Description

Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to a fall prevention leg and an electronic device casing equipped with the fall prevention leg, and more particularly to a fall prevention leg that automatically takes in and out to support a unit and the fall prevention leg that supports a unit. The present invention relates to an electronic device housing provided with anti-falling legs.

[Prior Art] In general, an electronic device case, such as a bank cash processing device, stores a large electronic device in a unit that can be freely drawn out. When the unit 2 was pulled out along the guide rail 3, there was a risk that the housing 1 would fall due to the weight of the unit 2 or the load on the unit 2.

In order to prevent the case from falling over, conventional electronic device cases include those that are rotatably provided with fall-prevention legs that support the unit drawer end with rollers as described in Japanese Utility Model Publication No. 60-38306, It has been proposed to provide a notch extending in the direction of pulling out the unit on the bottom of the casing as described in Japanese Patent No. 56-70686, and to provide casters in contact with the floor on the bottom of the unit so that the unit is stored in the notch. .

[Problems to be Solved by the Invention] The above-mentioned fall prevention mechanism in which the fall prevention legs are provided so that they can be stored in the unit has the disadvantage that the fall prevention legs must be taken in and out every time the unit is pulled out, making the operation complicated. be.

In addition, the fall prevention mechanism in which the bottom of the unit with casters is placed in a notch on the bottom of the housing reduces the strength of the housing due to the notch, and requires extra members to improve this strength. It was inviting challenges.

An object of the present invention is to eliminate the problems caused by the above-mentioned prior art, and to provide a fall prevention leg that automatically prevents a heavy unit from tipping over without sacrificing strength when pulling it out, and an electronic device casing equipped with the fall prevention leg. The goal is to provide the following.

[Means for Solving the Problem] In order to achieve the above object, the fall prevention leg according to the present invention has the following features:
The first feature is that the length of the anti-falling legs to the rollers is set shorter than the distance between the unit and the floor.

In addition, the fall prevention legs according to the present invention are set to a length such that the rollers do not come into contact with the floor surface that supports the housing when the unit is pulled out from the electronic device housing, and the center of rotation with the unit and the center of rotation of the rollers are set. The second feature is that it is configured to be eccentric in the direction of the floor surface.

Further, in the electronic device casing according to the present invention, the rollers of the anti-falling legs are set to a length that does not touch the floor surface when pulled out from the unit, and the center of rotation with the unit and the center of rotation of the rollers are eccentric in the direction of the floor surface. It is characterized by being configured in such a way that

[Operation] The fall prevention legs according to the first feature are set such that the length of the fall prevention legs to the rollers is shorter than the distance between the unit and the floor, so that the rollers do not come into contact with the floor when the unit is initially drawn out. The unit can be pulled out smoothly.

In addition, the fall prevention leg according to the second feature is configured such that the center of rotation with the unit and the center of rotation of the roller are eccentric in the direction of the floor surface. This prevents the fall prevention leg from rotating and prevents the fall prevention leg from being retracted.

Further, since the electronic device housing according to the present invention is provided with the anti-falling legs according to the second feature, the unit can be smoothly pulled out, and the anti-falling legs can be automatically extended and retracted.

[Example] Hereinafter, an example of an electronic device casing according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing an electronic device housing according to this embodiment. and a guide rail 3 attached to the side of the case 1 with screws 18, and a metal fitting 15 fixed to the front of the case 1 with bolts 16 to prevent the unit 2 from colliding with the case work.
, a stopper 14 , and anti-overturn legs 4 attached to the bottom surface of the unit 2 and which are a feature of this embodiment.

The fall prevention mechanism according to this embodiment is configured such that the fall prevention legs 4 automatically rotate to support the unit 2 as the unit 2 moves without impairing the movement of the unit 2.

This fall prevention mechanism will be explained below with reference to FIGS. 2 to 5.

First, the fall prevention mechanism is as shown in the exploded assembly diagram in Figure 5.
Broadly divided, a metal fitting 6 fixed to the bottom end of the unit 2;
A fall prevention leg 4 rotatably attached to the metal fitting 6 and having a roller 5 attached to its lower end, and the metal fitting 6
and a stay 11 that connects with the fall prevention leg 4 and limits the movement of the fall prevention leg 4.
The hole 52 at the upper end is connected to the hole 54 of the metal fitting 6 by the shaft 7, the center hole 52 is connected to the shaft 55 of the stay 1 by the shaft 10, and the stay 11 is connected to the fall prevention leg 4. The locking part 3 of the metal fitting 6 is engaged with the elongated groove 31 on the outside.

Therefore, the anti-falling leg 4 is rotated about the shaft 7 of the metal fitting 6 by the stay 11 which is guided by the groove 31 and rotated. This fall prevention leg 4 has a metal fitting 6 as shown in FIG.
It is urged by a spring 8 to rotate in the direction of the floor surface about the shaft 7.

Next, the operation of the fall prevention mechanism of this embodiment will be explained with reference to FIGS. 2 to 4.

First, when the unit 2 is housed in the casing 1, the fall prevention leg 4 rotates clockwise around the shaft 7, as shown in FIG. roller 5
is pressed by spring 8. In this state stay 11
is located at the right end of the groove 31 shown in FIG.

When the unit 2 is pulled out from the state shown in FIG. 2 to the position shown in FIG. 3 and the roller 5 comes off the bottom surface 20 of the housing 1,
The anti-falling leg 4 rotates counterclockwise under the bias of the spring 8 and lowers the roller 5 to a position facing the floor 9. At the same time, the stay 11 is pulled by the rotation and the lock 13 of the metal fitting 6 is moved into the groove 3.
Guide to the left end of 1.

Immediately after the unit 2 is pulled out, the fall prevention legs 4 are
A distance C is maintained from the floor surface 9 so that the roller 5 does not come into contact with the floor surface 9, and a lock 13 of the metal fitting 6 is engaged with the left end of the groove 31 to prevent rotation in the direction of arrow B.

Therefore, in this overturn prevention mechanism, when the unit 2 is initially pulled out, the roller 5 does not come into contact with the floor surface, and the unit 2 is moved to the guide rail 3.
In addition, the anti-falling leg 4 is temporarily fixed by engaging the groove 31 and the lock 13.

Next, when the unit 2 is pulled out further as shown in FIG.
The drawer continues to support the weight of the drawer. In this state, the lock 13 engages with the other end of the groove 31, and the shaft 7, which is the center of rotation of the leg 4, and the rotation shaft 17 of the roller 5 are eccentric by the distance, so that the fall prevention leg 4 is prevented from falling in the direction of arrow B. That is, by making the centers of rotation of the legs 4 and the rollers 5 eccentric, the fall prevention legs 4 are configured so that the fall prevention legs 4 cannot rotate unless the rollers 5 are spaced from the floor surface 9 by the same distance. , ensuring support for unit 2.

In this way, the fall prevention mechanism according to this embodiment pulls out the fall prevention legs 4 without contacting the floor surface when the unit 2 is moved from the housing 1, and when the unit 2 is moved to a certain extent, the fall prevention mechanism prevents the unit 2 from falling. The movement can be continued while being supported by the rollers 5 of the legs 4.

Now, when storing the unit 2 in the casing 1, when the unit 2 is pushed back into the casing 1 from the state shown in FIG. In this state, the rear end of the stay 11 rides on the end 1a of the lower surface 20 of the housing 1. As a result of this riding, the right end of the stay 11 shown in FIG. 2
It can be returned to the state shown in the figure.

In this way, the fall prevention legs 4 according to this embodiment are automatically pulled out when the unit 2 is pulled out from the housing, and are automatically stored when the unit 2 is put away, so that the operator can use the fall prevention legs 4. You can prevent falls without even being aware of it.

In particular, the fall prevention leg 4 according to the embodiment allows the unit 2 to be pulled out smoothly without contacting the floor surface 9 when the unit 2 is initially pulled out.
Since the rotating shaft 7 is eccentric, the fall prevention legs 4 are configured not to be folded in while in contact with the floor surface 9.

That is, the configuration is such that the legs 4 are not folded in unless the rollers 5 are in a state of being lifted off the floor. Therefore, the fall prevention legs 4 according to this embodiment can reliably support the unit 2 by the legs 4 when the unit 2 is automatically put in and taken out and when the unit 2 is pulled out.

Incidentally, the electronic device casing of the above embodiment is applicable to, for example, an automatic ticket vending machine 1.
Passbook issuing machine, ATM, printer, CD.

Suitable for minicomputers, etc.

[Effects of the Invention] As described above, in the fall prevention leg according to the present invention, the length of the fall prevention leg to the roller is set shorter than the distance between the unit and the floor, so that when the unit is initially drawn out, the roller is close to the floor. Since the unit can be pulled out without contacting the unit, the unit can be pulled out smoothly.

In addition, this fall prevention leg is configured so that the center of rotation with the unit and the center of rotation of the roller are eccentric in the direction of the floor surface, so that while the roller is in contact with the floor surface, the fall prevention leg can prevent the fall prevention leg from being retracted.

Further, since the electronic device housing according to the present invention is provided with the anti-falling legs, the unit can be smoothly pulled out, and the anti-falling legs can be automatically extended and retracted.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the overall structure of an electronic device casing according to an embodiment of the present invention, FIGS. 2 to 4 are diagrams for explaining the operation of the fall prevention mechanism according to this embodiment, and FIG. FIG. 6, an exploded view of the fall prevention mechanism according to this embodiment, is a diagram showing an electronic device casing according to the prior art. 1: Housing, 2: Unit, 3 Guide rail, 4: Fall prevention legs, 5: Roller, 6: Metal fittings, 7 and 10: Axis, 8: Spring, 9: Floor surface, 11
Nisty, 14: Stopper, 15: Metal fitting, 16: Bolt, 18: Screw, 20: Bottom surface, 31: Groove, 51.52 and 53: Shaft.

Claims (3)

[Claims] (1) Anti-fall legs with rollers that are installed on the bottom of a unit that is housed in a unit that can be freely pulled out from an electronic equipment housing by a guide rail, and rotated by a spring and extended toward the floor when the unit is pulled out. The fall prevention leg is characterized in that the length of the fall prevention leg to the roller is set shorter than the distance between the unit and the floor surface. (2) provided on the bottom of a unit that is supported by a guide rail and that can be freely pulled out from the electronic device housing;
Fall prevention legs with rollers that rotate by springs and extend toward the floor when the unit is pulled out; The anti-fall leg is set to a length so as not to come into contact with the floor surface supporting it, and is configured such that the center of rotation with the unit and the center of rotation of the roller are eccentric in the direction of the floor surface. (3) In an electronic device housing in which the unit is housed in a manner that it can be freely drawn out using a guide rail, and the unit is provided with anti-fall legs with rollers that rotate by a spring and extend toward the floor surface when the unit is pulled out on the underside of the unit. , the rollers of the fall prevention legs are set to a length that does not touch the floor surface when pulled out from the unit, and the center of rotation with the unit and the center of rotation of the rollers are eccentric in the direction of the floor surface. Characteristic electronic device housing.