JPH0467714B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an opening/closing lid locking device for a cassette lid, accessory case, etc. used in audio equipment such as a small tape recorder.

Conventional Structures and Their Problems In recent years, the internal structures of small devices such as audio equipment such as tape recorders and various toys have become denser, and there is a trend toward smaller and thinner devices.

Conventionally, when adding a locking mechanism to the opening/closing lid of audio equipment such as tape recorders or various small devices, a locking pawl and a lever that interlocks the locking operation are provided on the internal mechanism. As a result, the number of interlocking parts for the mechanism increases and becomes complex, and internal equipment parts such as mechanisms become larger, which is often disadvantageous in making equipment smaller and thinner. In addition, there are cases where the lock mechanism is omitted from the internal device and is made independent, and is configured in a cabinet, etc., but this type of structure has a limited effective space due to the dense structure inside the device, and the lock mechanism is The mechanism also had a dense structure, and reliability such as ease of assembly and strength was not satisfactory.

Purpose of the Invention The present invention solves the above-mentioned drawbacks, and provides an opening/closing lid that has a simple structure, reliably locks the opening/closing lid provided on small equipment, etc., and is easy to assemble and has high reliability. The purpose is to provide a locking device.

Structure of the Invention In order to achieve the above object, the opening/closing lid locking device of the present invention is installed by inserting a locking piece and a locking knob from two directions into a guide rib and a mounting hole that are integrally formed in a cabinet, and is capable of withstanding external force loads. It is characterized by being constructed so that lock strength can be obtained.

DESCRIPTION OF EMBODIMENTS Hereinafter, the opening/closing lid locking device of the present invention will be described with reference to drawings of embodiments. 1 to 6 show an embodiment of the present invention. The cabinet 1 is provided with an integrally formed guide rib 7a in a portion that does not affect the peripheral operation parts 12 of the device, and the lock piece 3 is provided with a guide groove 11 so as to face the guide rib 7a. . When attaching the guide groove 11 to the guide rib 7a, the return spring 4 is inserted into the attachment hole 10b provided in the lock piece 3, and the return spring 4 is inserted in the direction of expansion and contraction of the spring between it and the guide rib 7b formed integrally with the cabinet 1. Attach the lock piece 3 to the cabinet 1 by inserting it.
Then, the hook rib 8 provided on the lock knob 2 is inserted into the mounting hole 10a provided in the lock piece 3 through the through hole 13 provided in the cabinet 1 so as to be orthogonal to the guide rib 7a, and the lock knob 2 is inserted into the mounting hole 10a provided in the lock piece 3. Insert it into the hole 13, assemble it, and interlock the two.

At this time, the hooking rib 8 also serves to prevent the lock piece 3 from falling off. Lock knob 2 and lock piece 3
is configured to slide parallel to the guide rib 7a and return to its original position by the action of the return spring 4. By this operation of the lock knob 2 and the lock piece 3, the lock pawl 6a formed integrally with the lock piece 3 and the lock pawl 6b provided on the opening/closing lid 5 engage with each other, and a locking operation is performed. When an attempt is made to open the opening/closing lid 5 in the locked state, the locking piece 3 receives the external force load on the guide rib 7a and the inner surface 14 of the cabinet 1, so that sufficient strength can be obtained. ing. Further, when the lock knob 2 is slid against the biasing force of the return spring 4 and the lock piece 3 is moved to release the lock pawl 6a, the guide piece 9 provided on the lock piece 3 is moved by the sliding action. Opening/closing lid 5
It acts to push up the lock pawl 6b of the lid 5, and has the function of making it easier for a finger to reach the opening/closing lid 5 when opening it.

Effects of the Invention As described above, according to the present invention, a lock piece slidably attached to a guide rib provided integrally with the cabinet and a lock knob attached to a side perpendicular to the guide rib are mutually coupled. With this construction, the locking mechanism can be constructed in an extremely small space near the corners of the equipment, and since it is constructed from orthogonal parts of the cabinet wall, sufficient strength can be obtained against external loads. Furthermore, during assembly, the lock piece can be supported only by the hook of the lock knob and the guide rib of the cabinet, so there is an advantage that an opening/closing lid locking device with extremely good assembly workability can be realized.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a device equipped with an opening/closing lid locking device according to an embodiment of the present invention, Fig. 2 is an assembled perspective view of the device, and Fig. 3 is a perspective view showing the assembled state of the main parts of the device. Figure 4 is an enlarged sectional view taken along line A-A in Figure 3;
FIG. 5 is an enlarged sectional view taken along line BB in FIG. 3, and FIG. 6 is an assembled plan view of the same device. 1... Cabinet, 2... Lock knob, 3... Lock piece, 4... Return spring, 5... Open/close lid, 6a, 6b
...Lock claw, 7a, 7b...Guide rib, 8...Hooking rib, 9...Guide piece, 10a, 10b...Mounting hole, 11...Guide groove, 12...Peripheral operation parts, 13
...Through hole, 14...Inner surface.

Claims (1)

[Claims] 1. A lock piece having a lock claw slidably attached to a guide rib formed integrally with the cabinet, and a lock knob inserted into a through hole provided in a position facing the guide rib of the cabinet and coupled to the lock piece. , an opening/closing lid having a lock pawl rotatably supported by the cabinet, and an opening/closing lid provided between the cabinet and the lock piece so that the lock pawl of the lock piece always engages with the lock pawl of the opening/closing lid. An opening/closing lid locking device comprising a biasing spring that biases the lock piece.