JPH0245264B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a locking device for a moving member that is incorporated into a substrate formed by integrally molding a resin onto a metal plate (hereinafter referred to as outsert molding).

Structure of a conventional example and its problems FIGS. 1A and 1B show a locking device used in a conventional digital audio player during transportation. In FIGS. 1A and 1B, 1 is an optical pickup, 1a is a protruding piece thereof, 2 is a base into which the optical pickup 1 is installed, 3 is a guide shaft that supports the optical pickup 1, 4 is a housing, and 5 is a housing for transportation. A locking material 6 inserted into the elongated hole 4a of the body 4 is movably held by the arms 4b, 4b of the housing 4, and has a screw 6a at its tip, and 7 is a spring.

The operation of the conventional lock device constructed as described above will be explained below.

In FIG. 1A, during transportation, a locking material 5 is inserted from the outside of the casing 4 through a long hole 4a formed in the casing 4, and is fixed between the optical pickup 10 and its protruding piece 1a. is fixed, and its release is performed by pulling out the locking material 5 from the elongated hole 4a. Also, Figure 1B
Now, rotate the locking material 6 with a screw 6a machined at the tip using a screwdriver etc. from the outside of the casing 4.
The optical pickup 1 is fixed by tightening the screw 6a to a part of the optical pickup 10, and is released by loosening the locking material 6 and removing it from the optical pickup 1 by the force of a spring 7.

However, the conventional configuration as described above has a drawback in that it is difficult to tell whether the device is currently in a locked state or not when viewed from the outside.

OBJECTS OF THE INVENTION The present invention solves these conventional problems and aims to provide a locking device that can determine from the outside whether or not it is currently in a locked state.

Structure of the Invention The present invention is configured to lock parts to be locked by rotating a locking member made of resin integrally molded on a metal plate, and forming a slit at the tip of the locking member and forming a slit at the tip of the locking member. By providing a protrusion that extends to the vicinity, providing a through hole in the housing corresponding to the position of the slot, and adding a mark to the outside of the through hole, the lock member can be directly operated from outside the housing. Furthermore, it is possible to determine from the outside whether or not the device is in a locked state based on the positional relationship between the protrusion and the mark.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 to 6.

In FIGS. 2 to 6, parts having the same functions as those in FIG. 1 are denoted by the same reference numerals, and explanations thereof will be omitted. 8 is a metal plate substrate, 9 is a clamp member that is outsert-molded on the substrate 8, 10 is a lock member that is also outsert-molded on the substrate 8, and the third
As shown in Figures A and B, it is integrated with the boss 11 on the back surface through a circular hole in the substrate 8. Lock member 1
0 and the center of the boss 11 are offset, and the lock member 10 and the boss 11 constitute an eccentric shaft. Further, the tip of the boss 11 has a slot in the shape of a Phillips-head, so that it can be hit with a screwdriver. Then, as shown in FIG.
A part of the distal end thereof extends to the vicinity of the housing 4 to form a protrusion 12 . Further, in order to make the protrusion 12 more visible, a small hemispherical protrusion 13 is provided at the tip of the protrusion 12. As shown in FIG. 6, the words "Lock" and "Free" and arrows 14 are engraved on the outside of the housing 4 at positions corresponding to the protrusions 12.

The operation of the locking device of this embodiment constructed as described above will be explained below.

First, from the state shown in FIG. 3A, the boss 11 is rotated using a screwdriver. Then, the locking member 10 is swung by the eccentricity with respect to the boss 11, and the clamping member 9 is moved to a position where the optical pickup 1 is sandwiched, as shown in FIG. A stopper (not shown) is attached to the boss 11 side of the board 8, and the boss 11 is prevented from rotating beyond this position.
The optical pickup 1 is locked at this position. To release the lock, rotate the boss 11 in the opposite direction. Then, the lock member 10 returns to its original position, and the clamp member 9 returns to its original position by its own elasticity, releasing the lock. At this time, in case the clamp member 9 does not return completely by its own elasticity, a part of the clamp member 9 is extended, and the clamp member 9 is forcibly returned by the outer periphery of the lock member 10 that has been rotated to the release position. In addition, a return member 9a is added to a part of the clamp member 9.

In addition, in order to be able to determine from the outside whether the current state is a locked state or a free state, a part of the tip of the boss 11 is extended as shown in FIG.
It would be even more convenient if ``Lock'' and ``Free'' were engraved on the outside of the casing 4 in correspondence with the protrusions 12, as shown in FIG. In the example in Figure 6, the protrusion 12 is at "Lock", so
This shows that the optical pickup 1 is currently in a locked state. When the lock is released, the protrusion 12
Needless to say, it comes under the stamp "Free".

By doing the above, it is possible to determine from the outside whether the lock is currently locked or the lock-free condition is present at a glance.

Effects of the Invention The present invention is configured to lock parts to be locked by rotating a lock member made of resin integrally molded on a metal plate, and forms a slit at the tip of the lock member and a casing. By providing a protrusion that extends to the vicinity, providing a through hole in the housing corresponding to the position of the slot, and adding a mark to the outside of the through hole, the lock member can be directly operated from outside the housing. Furthermore, it is possible to realize an excellent locking device that can determine whether the lock is currently in the locked state or in the free state from the positional relationship between the protrusion and the mark.

[Brief explanation of drawings]

FIGS. 1A and 1B are a perspective view and a sectional view of a conventional example,
FIG. 2 is a plan view of a locking device according to an embodiment of the present invention, FIG. 3A is a perspective view thereof, and FIG. 3B is a diagram of FIG. 3A.
4 is a plan view of the locked state, FIG. 5 is a perspective view of the tip of the boss of the same embodiment, and FIG. 6 is a plane showing the relationship between the boss of the same embodiment and the housing stamp. It is a diagram. 1... Optical pickup, 3... Guide shaft, 4...
...Casing, 8... Board, 9... Clamp member, 10
... Lock member, 11 ... Boss, 12 ... Protrusion,
13...small projection, 14...engraved.

Claims (1)

[Claims] 1. A lock member made of resin integrally molded on a metal plate is configured to lock the parts to be locked by rotating it, and a slot is formed at the tip of the lock member, and a protrusion extending to the vicinity of the casing is formed. By providing a through hole in the housing corresponding to the position of the slot and adding a mark to the outside of the through hole, it is possible to determine whether or not the lock is in the locked state from the positional relationship between the protrusion and the mark. A locking device that can be determined from the outside.