JPH0724341B2 - Electronic device housing with fall prevention legs - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device housing provided with fall-prevention legs, and more particularly to an electronic device housing provided with fall-prevention legs that automatically take in and out to support a unit.

[Prior Art] Generally, an electronic equipment housing in which a large electronic equipment is housed in a freely retractable unit, for example, a cash processing apparatus for banks, is used as a unit 2 as shown in FIG. 6 when performing maintenance and inspection of the unit. When the rail was pulled out along the guide rail 3, the housing 1 might fall due to the weight of the unit 2 or the load on the unit 2.

In order to prevent this casing from falling, the electronic device casing according to the prior art has a fall prevention leg that supports a unit withdrawing end supported by rollers as described in JP-B-60-38306 and JP-A-61-126366. What to provide, Shokai 56-
No. 70110, JP-A 1-211095, in which a notch portion extending in the unit withdrawing direction is provided on the bottom surface of the housing, and a caster in contact with the floor surface is provided on the bottom surface of the unit to store the unit in the notch portion. As described in the official gazette, there is proposed one having a fixed caster that supports the housing when the unit is pulled out from the housing.

[Problems to be Solved by the Invention] In the fall prevention mechanism in which the fall prevention leg is provided so as to be accommodated in the unit, the fall prevention leg must be put in and taken out every time the unit is pulled out, and there is a problem that the operation is complicated. is there.

Further, the fall prevention mechanism in which the caster-equipped unit bottom surface is arranged in the cutout portion provided on the bottom surface of the housing has a problem that the housing strength is reduced due to the cutout portion, and an extra member is required to improve the strength. I was invited.

An object of the present invention is to eliminate the above-mentioned problems caused by the conventional technique, and to provide an electronic device housing including a fall prevention leg capable of automatically performing fall prevention when a heavy weight unit is pulled out without impairing strength. That is.

[Means for Solving the Problem] In order to achieve the above-mentioned object, the present invention stores a unit so that it can be drawn out freely by a guide rail, and when the unit is drawn out to the lower surface of the unit, it is rotated in the floor surface direction by a spring. Then, in an electronic device housing including a fall prevention leg with a roller for keeping the upright state, the fall prevention leg is set to a length such that the roller does not contact the floor surface when the unit is pulled out,
Further, the rotation center of the roller is eccentric to the rotation center of the fall prevention leg in a direction toward the electronic device housing.

[Operation] The electronic device housing according to the above feature is set to a length that does not contact the floor surface when the roller is pulled out from the unit, and the center of rotation with the unit and the center of rotation of the roller are eccentric to the floor surface. By providing the legs, the unit can be pulled out smoothly and the fall prevention legs can be automatically extended and stored.

[Embodiment] An embodiment of an electronic device housing according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing an electronic device housing according to the present embodiment. The main housing 1 includes a unit 2 in which a heavy load is stored, and the unit 2 and the housing 1 so that the unit 2 can be pulled out from the front surface of the housing 1. Guide rail 3 attached to the side surface of the unit with screws 18, metal fittings 15 and stoppers 14 fixed to the front surface of the housing 1 by bolts 16 to prevent the unit 2 from colliding with the housing 1, and the bottom surface of the unit 2 The fall prevention leg 4 which is a feature of the present embodiment is attached.

The fall prevention mechanism according to the present embodiment is configured so that the fall prevention leg 4 automatically rotates in accordance with the movement of the unit 2 without impairing the movement of the unit 2 to support the unit 2.

The fall prevention mechanism will be described below with reference to FIGS. 2 to 5.

First, as shown in the exploded view of FIG.
Metal fittings 6 which are roughly classified and 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 the lower end thereof;
And a stay 11 for connecting the fall-prevention leg 4 to limit the operation of the fall-prevention leg 4, and the fall-prevention leg 4 has a hole 52 at an upper end connected to a hole 54 of the metal fitting 6 by a shaft 7. The central hole 52 is connected to the shaft 55 of the stay 11 by the shaft 10, and the stay 11 is engaged with the locking 13 of the metal fitting 6 in the elongated groove 31 outside the connection with the fall prevention leg 4. It's

Therefore, the fall prevention leg 4 is rotated around the shaft 7 of the metal fitting 6 by the stay 11 which is guided and rotated by the groove 31. As shown in FIG. 2, the fall prevention leg 4 is biased against the metal fitting 6 by the spring 8 about the shaft 7 so as to rotate in the floor surface direction.

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

First, as shown in FIG. 2, the fall prevention leg 4 in the state where the unit 2 is housed in the case 1 rotates in the clockwise direction around the shaft 7 as shown in FIG. 2, and the roller 5 is attached to the lower surface 20 of the case 1. Is pressed by the spring 8. In this state, the stay 11 is grooved.
It is located at the right end of the groove 31 shown in FIG.

When the unit 5 is pulled out from the state shown in FIG. 2 to the position shown in FIG. 3 and the roller 5 is disengaged from the lower surface 20 of the housing 1, the fall-prevention leg 4 is urged by the spring 8 in the counterclockwise direction (toward the floor surface). Direction) to lower the roller 5 to a position facing the floor surface 9 and, at the same time, pull the stay 11 by the rotation to bring the metal fitting 6 into place.
Guide the locking 13 of the to the left end of the groove 31.

Immediately after the unit 2 is pulled out, the fall prevention leg 4 is
The roller 5 is kept at a distance C from the floor surface 9 so as not to come into contact with the floor surface 9, and the locking 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 fall prevention mechanism, the roller 5 does not contact the floor surface when the unit 2 is pulled out, and the unit 2 is guided to the guide rail 3
And the fall prevention leg 4 is temporarily fixed by engaging the groove 31 and the lock 13.

Next, as shown in FIG. 4, when the unit 2 is further pulled out, the weight of the unit 2 causes the guide rail 3 to bend, so that the roller 5 of the fall prevention leg 4 contacts the floor surface 9 to support the weight of the unit 2. Withdrawal continues. In this state, the locking 13 engages with the left end portion of the groove 31, and the shaft 7 which is the rotation center of the leg 4 and the rotation shaft 17 of the roller 5 are eccentric by the distance D. Is prevented from falling in the direction of arrow B. That is, by making the rotation center of the leg 4 and the roller 5 eccentric, a moment acting on the fall prevention leg 4 in the direction opposite to the arrow B direction, that is, the direction toward the housing 1 with the shaft 7 of the fall prevention leg 4 as the rotation center. Is added, the shaft 7 of the fall prevention leg 4, the rotation shaft 17 of the roller 5 and the locking 13
By restraining the three nodes of each other, the support of the fall prevention leg can be kept more stable, and the fall prevention leg 4 cannot rotate unless the roller 5 has a gap D from the floor surface 9. Therefore, the support of the unit 2 is ensured.

As described above, in the fall prevention mechanism according to the present embodiment, when the unit 2 is moved from the housing 1, the fall prevention leg 4 is pulled out without contacting the floor surface, and when the unit 2 is moved to some extent, the fall prevention leg 4 is pulled out. The movement can be continued while being supported by the rollers 5 of 4.

When the unit 2 is to be stored in the housing 1, when the unit 2 is pushed back into the housing 1 from the state shown in FIG. 4, first, the rollers 5 of the fall prevention legs 4 are supported by the guide rails 3 and float up. The rear end of the stay 11 is the bottom surface of the housing 1.
Ride on the end 1a of 20. As a result of this riding, the right end of the stay 11 shown in FIG.
The fall prevention leg 4 can be returned to the state shown in FIG. 2 by being disengaged from the left end portion of 31 and the side surface of the leg 4 also riding on the lower surface 20.

In this way, the fall prevention leg 4 according to the present embodiment is automatically pulled out when the unit 2 is pulled out from the housing, and is automatically stored when the unit 2 is stored. You can prevent falls without being aware of it.

In particular, the fall prevention leg 4 according to the above-described embodiment can smoothly pull out the unit 2 without contacting the floor surface 9 when the unit 2 is pulled out, and the shaft 17 of the roller 5 and the rotation shaft 7 of the fall prevention leg 4 can be connected to each other. Since it is eccentric, the fall-prevention leg 4 is configured not to be folded in a state where it is in contact with the floor surface 9. That is, the leg 4 is not folded unless the roller 5 is floated from the floor. Therefore, the fall prevention leg 4 according to the present embodiment can reliably support the unit 2 by the leg 4 in a state where the leg 4 is automatically pulled in and out and the unit 2 is pulled out.

The electronic device housing of the above-described embodiment is, for example, an automatic ticket vending machine,
Suitable for passbook issuing machines, ATMs, printers, CDs, minicomputers, etc.

[Advantages of the Invention] As described above, in the electronic device housing according to the present invention, the length of the fall prevention leg up to the roller is set shorter than the distance between the unit and the floor surface. Since the unit can be pulled out without contact with the unit, the unit can be pulled out smoothly, and the center of rotation of the unit and the center of rotation of the roller are eccentric in the direction of the floor surface. While in contact, the eccentricity prevents the fall-prevention legs from rotating, preventing the fall-prevention legs from being stored, allowing the unit to be pulled out smoothly and automatically extending and retracting the fall-prevention legs. Can be done.

[Brief description of drawings]

FIG. 1 is a diagram showing the overall structure of an electronic device housing according to an embodiment of the present invention, FIGS. 2 to 4 are diagrams for explaining the operation of a fall prevention mechanism according to this embodiment, and FIG. FIG. 6 is an exploded view of the fall prevention mechanism according to the embodiment, and FIG. 6 is a view showing an electronic device housing according to a conventional technique. 1: Enclosure, 2: Unit, 3: Guide rail, 4: Fall prevention leg,
5: Roller, 6: Metal fitting, 7 and 10: Shaft, 8: Spring, 9: Floor surface, 11: Stay, 14: Stopper, 15: Metal fitting, 16: Bolt, 18: Screw, 20: Lower surface, 31: Groove , 51, 52 and 53: Axis.

Claims (1)

[Claims] 1. An electronic device having a roll-prevention leg with a roller for accommodating the unit so that the unit can be pulled out freely by a guide rail, and when the unit is pulled out, the unit is rotated by a spring in the direction of the floor surface to maintain an upright state. In the equipment housing, the fall prevention leg is set to a length such that the roller does not contact the floor surface when the unit is pulled out, and the rotation center of the roller faces the electronic equipment housing with respect to the rotation center of the fall prevention foot. An electronic device housing characterized by being eccentrically oriented.