JPH0715189Y2 - Cover removal mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The present invention relates to a cover attaching / detaching mechanism for covering a part of a housing, and a shape of a detachable cover and a member supporting the attachable / detachable cover that can be easily attached and detached by a force in only one direction. A cover having a plurality of curved surfaces, at least a part of one end of which protrudes, at least a part of the other end of which protrudes, and which has a first recess on the protruding surface; and a protrusion of the one end. A cover attaching / detaching mechanism including a second concave portion into which a portion is inserted and a cover support having a portion that engages with the first concave portion due to elastic force generated by bending of the cover, The part is positioned so that the contact surface between the concave part and the part forms an arc centered on the second concave part, and the cover is formed by bending, and the cover mounting method in the first concave part By forming the facing wall portion into a slope shape, the cover is attached and detached by applying only the force in the tangential direction of the circle centered on the second recess.

[Industrial application field]

The present invention relates to a cover attaching / detaching mechanism that covers a part of a housing.

In recent years, there is a tendency to purchase an optional product in an information processing device or the like and then expand the system by purchasing an optional product.
Therefore, the manufacturer prepares various optional products as well as the installation locations of these optional products in advance in the apparatus body. Among these optional products, there are some optional products such as a disk drive device whose installation location extends over the surface of the device. In such a case, when the product is shipped, the installation location of the optional product is covered with a removable cover so as not to be exposed, and the installation work is performed with the cover removed. In general, this work is often done by the user by purchasing an optional product, and the manufacturer needs to make the work easy.

[Conventional technology]

FIG. 3 is a sectional view of a portion for fixing the conventional removable cover and the cover of the apparatus main body.

In the figure, 12 is a device body cover (housing surface), 13 is a cover detachable from the device body cover 12, and 14a and 14b are a part of the detachable cover 13 inserted and the detachable cover 13 is rotated. A hole or a recess provided in the apparatus main body cover 12 so as to enable the operation, a reference numeral 15 is a position serving as a fulcrum of a rotational operation when the removable cover 13 is attached and detached, and 16 is provided on the removable cover 13 and is provided on the apparatus main body cover 12. Recesses 17 that engage the locks 17,
Is a lock part for fixing the removable cover 13 on the apparatus main body cover 12 by engaging with the recessed part 16, and 18 is a bent part of the removable cover 13 inserted into the recessed part 14b. In addition, the same components are denoted by the same reference symbols throughout the drawings.

In the figure, the removable cover 13 is elastically sandwiched by a fulcrum 15 and a lock portion 16. That is, when the lock portion 17 engages with the recessed portion 16, the detachable cover 13 that is elastically sandwiched is fixed at this position. On the other hand, when removing this cover, a force F3 for removing the detachable cover 13 from the apparatus main body cover 12 is applied in a state where a force F2 is applied to separate the engaging recess 16 and the lock portion 17.

[Problems to be solved by the device]

As described above, when attaching / detaching the attaching / detaching cover, the force F2 and the force F3 in the two directions must be applied at the same time, so that the attaching / detaching cover cannot be easily attached / detached.

The present invention has been made in view of the above problems, and an object thereof is to provide a shape of a detachable cover and a member (main body cover) that supports the detachable cover that can be easily attached and detached by a force in only one direction.

[Means for Solving the Problems]

The cover 2 is composed of a plurality of curved surfaces, at least a part 8 of which is projected at one end and at least a part 5 and 6 of which is projected at the other end, and a cover 2 having a first concave portion on the projecting surface and the projecting portion of the one end are inserted. The second concave portion 4a to be formed and the portion 7 that engages with the first concave portion due to the elastic force generated by the bending of the cover 2.
In the cover attaching / detaching mechanism constituted by the cover support 1 having the above, the portion 7 is positioned such that the contact surface between the first concave portion and the portion 7 forms an arc around the second concave portion 4a when the cover is fixed. By forming the cover 2 by bending and forming the wall portion of the first concave portion in the cover mounting direction into the slope shape 6, only the force in the tangential direction of the circle centering on the second concave portion 4a is formed. The cover is attached and detached by adding.

[Action]

According to the present invention, by applying only a tangential force of a circle centered on the second concave portion, the portion engaged with the first concave portion slides up on the slope portion and exceeds the apex of the slope portion. In step the cover is disengaged from the cover support.

〔Example〕

1 (a) and 1 (b) show an embodiment of the present invention, and FIG. 2 shows an application example of the embodiment of the present invention. Hereinafter, embodiments and application examples of the present invention will be described in detail with reference to the drawings.

1A shows a state in which the removable cover is fixed to the apparatus main body, and FIG. 1B shows a state in which the removable cover is being removed from the apparatus main body. In both figures, 1 is a device body cover, 2
Is a detachable cover, 3 is a fulcrum of the rotation operation when the detachable cover 2 is attached and detached, and 4a, 4b, 4c allow the detachable cover 2 to rotate while a part of the detachable cover 2 is inserted. A hole or a recess provided in the device body cover 1, 5 is a claw part that is engaged with the lock part 7 when the removable cover 2 is fixed to the device body cover 1, and 6 is a claw part between the claw part 5. Reference numeral 7 is a slope portion for positioning 7; 7 is a lock portion of the apparatus main body cover; and 8 is a bent portion of the removable cover 2 inserted into the recess 4a. In addition, the same components are denoted by the same reference symbols throughout the drawings.

In FIG. 1A, the removable cover 2 is sandwiched by the fulcrum 3 and the lock portion 7 by elastic force. That is, the lock portion 7 is positioned and fixed between the claw portion 5 and the slope portion 6 by the elastic force outward from the fulcrum 3 of the removable cover 2. Here, since the claw portion 5 is processed so as to be in close contact with the lock portion 7, the detachable cover 2 will not be inserted more than necessary at the time of mounting.

On the other hand, when removing this cover, a force F1 in the tangential direction of a circle centered on the fulcrum 3 is applied to the removable cover 2 as shown in FIG. 1 (b). Then, since the removable cover 2 has elasticity in the direction of the fulcrum 3, when the contact point of the lock portion 7 with the removable cover 2 slides up the slope portion 6 and exceeds the apex of the slope, the removable cover 2 is attached to the apparatus main body cover 1 Get out of. That is, the attachment / detachment cover 2 is detached from the apparatus main body cover 1 by applying only the force F1 in one direction. Here, the contact surface between the lock portion 7 and the removable cover 2 when the removable cover 2 is attached is formed so as to form an arc of a circle around the fulcrum 3, and the lock portion positioned as described above. Since the claw portion 5 and the slope portion 6 of the detachable cover 2 are formed so as to be flexibly engaged with the detachable cover 2, the detachable cover 2 can be detached with a substantially uniform force.

In FIG. 2, reference numeral 9 is a word processor in which two 3.5-inch floppy disk drive devices are standardly installed, and a 5-inch floppy disk drive device can be optionally added. 10 is a standard 3.5-inch floppy disk drive device. 11 is a standard processor. It is an additional 5-inch floppy disk drive device.

At the time of expansion, the detachable cover 2 is removed from the apparatus main body cover 1 as described above. After the addition, a new removable cover (not shown) having an insertion opening is placed on the apparatus main body cover 1 so that the floppy disk can be taken in and out.

Here, in this embodiment, one end of the detachable cover 2 (the claw portion 5,
The other end (on the side of the slope portion 6) is removably inserted into the recess 4a, but the cover can be easily opened and closed by being rotatably fixed to the apparatus body cover 1.

[Effect of device]

According to the present invention, the detachable cover can be easily attached and detached only by a force in one direction.

[Brief description of drawings]

 FIG. 1 shows an embodiment of the present invention, FIG. 2 shows an application example of the present invention, and FIG. 3 shows a conventional technique. In FIG. 1, the items with reference numerals are as follows. 1 ... Device main body cover 2 ... Removable cover 3 ... Support point 4a ... Hole or recess to 4c 5 ... Claw part 6 ... Slope part 7 ... Lock part 8 ... Bent part

Claims (1)

[Scope of utility model registration request] 1. A cover (1) having a plurality of curved surfaces, at least a part (8) of which is projected at one end and at least a part (5, 6) of which is projected at the other end and which has a first recess on the projecting surface. 2), a second recess (4a) into which the protrusion of the one end is inserted, and a cover support having a portion (7) that engages with the first recess by elastic force generated by bending of the cover (2). In the cover attaching / detaching mechanism composed of the body (1), when the cover is fixed, the contact surface between the first recess and the part (7) forms an arc centered on the second recess (4a). The second recess (4a) is formed by positioning (7) and bending the cover (2), and forming the wall of the first recess in the cover mounting direction into a slope (6). Applying only the tangential force of a circle centered on Cover detaching mechanism being characterized in that so as to more removable covers.