JPH0547275U - Case locking mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a case locking mechanism that enables the hook part to be unlocked with a small amount of force and enables smooth opening and closing of the case. [Structure] When the upper case 1 is opened, the protrusion 4 is pressed with a finger to slide the slide body 3 in the direction of arrow A. As a result, the elastic piece 7 is pressed against the groove portion 1a and elastically deformed, and the hook portion 8 moves in the arrow A direction. This allows
Since the hook portion 8 is disengaged from the hook portion 2a, the upper case 1 is released from the lower case 2 and rotates in the direction of arrow B,
It is possible to move to the position indicated by the chain line.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a case locking mechanism.

[0002]

[Prior Art]

 Small electronic devices such as calculators and electronic organizers adopt a folding structure in which the main body of the device is separated into an upper case and a lower case and connected by a hinge. In such a folding structure, it is necessary to lock both cases so that the upper case and the lower case do not open when the device body is not used. FIG. 5 is a sectional view showing a conventional locking mechanism. The upper case 9 is made of a synthetic resin, and an elastically deformable hook portion 9a is integrally formed. The lower case 10 is formed with a hook portion 10a for locking the hook portion 9a of the upper case.

[0003]

[Problems to be solved by the device]

 In the locking mechanism as described above, when the upper case 9 and the lower case 10 are opened, the hook portion 9a is pushed in the direction of the arrow D and elastically deformed. As a result, the hook portion 9a rotates in the direction of the arrow E, and the engagement with the hook portion 10a is released. In this case, if the hook portion 9a and the hook portion 10a are securely locked, a large amount of force is required to elastically deform the hook portion 9a to release the lock, and the case cannot be opened and closed smoothly. There was a drawback. The present invention has been made to solve the above problems, and an object thereof is to provide a case locking mechanism that enables the hook to be unlocked with a small amount of force and the case can be opened and closed smoothly. ..

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is directed to a small electronic device having a folding structure, which has a substantially L-shaped cross section, a hook portion is formed at one end, and an elastic piece is formed at the other end. A slide body, an upper case that movably supports the slide body and has a groove portion into which the elastic piece is fitted, and a lower case that has a hook portion that locks the hook portion of the slide body are provided. It is characterized by

[0005]

[Action]

 The operation of this device is as follows. When the slide body is moved in the surface direction, the elastic piece of the slide body elastically deforms, the hook part of the slide body and the hook part of the lower case are disengaged, and the upper case and the lower case are opened. ..

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing an external configuration of a small electronic device to which the present invention is applied. As shown in the figure, the device body of the small electronic device is separated into an upper case 1 and a lower case 2, and they are connected by a hinge portion (not shown). A slide body 3 is supported on the upper case 1 so as to be slidable in the surface direction. This slide body 3 is formed with a convex portion 4 for hooking a finger when opening and closing the case.

FIG. 2 is a front view showing a detailed configuration of the slide body 3. The slide body 3 is a rectangular member made of synthetic resin and having a substantially L-shaped cross section. Collars 5 and 6 are formed on both sides of the slide body 3, and elastically deformable elastic pieces 7 are formed at the opposite ends where the protrusions 4 are formed.

FIG. 3 is a partial sectional view of FIG. The flanges 5 and 6 of the slide body 3 are fitted into guide grooves (not shown) formed in the upper case 1, and the slide body 3 is movably supported in the surface direction. The elastic piece 7 is fitted in the groove portion 1 a formed in the upper case 1. Further, a hook portion 8 is formed at the tip portion of the slide body 3 formed in a substantially L shape. The hook portion 8 is locked to the hook portion 2a formed on the lower case 2.

Next, the operation of the above embodiment will be described with reference to FIG. When the upper case 1 is opened, the protrusion 4 is pushed with a finger to slide the slide body 3 in the direction of arrow A. As a result, the elastic piece 7 is pressed against the groove portion 1a and elastically deformed, and the hook portion 8 moves in the arrow A direction. As a result, the hook portion 8 is disengaged from the hook portion 2a, so that the upper case 1 is released from the lower case 2 and can be rotated in the direction of arrow B to move to the position shown by the alternate long and short dash line.

When closing the upper case 1, the upper case 1 is rotated in the direction of arrow C. Then, when the hook portion 8 of the slide body 3 hits the hook portion 2a of the lower case 2, the elastic piece 7 is elastically deformed and the slide body 3 slides in the direction of arrow A. 2a is locked.

[0011]

[Effect of the device]

 According to this invention, it is possible to provide a case locking mechanism that can unlock the hook portion with a small amount of force and that can smoothly open and close the case.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external configuration of a small electronic device.

FIG. 2 is a front view showing a detailed configuration of a slide body 3.

FIG. 3 is a partial cross-sectional view of FIG.

FIG. 4 is a partial cross-sectional view showing the operation.

FIG. 5 is a sectional view showing a conventional locking mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Upper case 1a ... Groove part 2 ... Lower case 2a ... Hook part 3 ... Slide body 4 ... Convex part 5,6 ... Collar part 7 ... Elastic piece 8 ... Hook part

Claims (1)

[Scope of utility model registration request] 1. A compact electronic device having a folding structure, a slide body having a substantially L-shaped cross section, a hook portion formed at one end, and an elastic piece formed at the other end, and the slide body. A case case characterized by comprising an upper case movably supported in a plane direction and having a groove portion into which the elastic piece is fitted, and a lower case having a hook portion for locking the hook portion of the slide body. Stop mechanism.