JPS5932702Y2 - locking device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a locking device for locking a lid to a base.

More specifically, the present invention relates to a locking device that is reliable and easy to attach and detach, in which two locking pieces of a locking plate attached to the back surface of the lid are locked to a locking portion provided in a notch of a base body.

BACKGROUND ART Conventionally, as a means for easily locking a lid and a base, a method is known in which a protrusion is formed on the lid and a locking hole is provided in the base for locking the protrusion.

Since such means aims only to easily lock the lid body to the base body and to reduce the number of parts, the number of protrusions is usually one, which is one-point locking.

There is also a product that has two protrusions, and the opening/closing operation part of the lid body is locked at a position away from the locking point where the protrusion part and the locking hole lock, for example, at both corners of the lid body. An opening/closing operation part is provided at the center of the side end of the lid.

With such means, for example, one-point locking means, the locking is not reliable, and a part of the lid may not come into close contact with the base and may float, or when the lid is opened, force is applied to only a part of the lid. There are disadvantages such as the lid being distorted and deformed, and the lid not being separated from the base unless a force is applied more than necessary.

In addition, with the conventional two-point locking means provided with two protrusions, the number of parts increases, and when locking, only one protrusion locks into the locking hole, or when opening the lid, Since the force is not applied equally to both locking points, but only to one side, there is a risk that the lid body will become distorted or the protrusion on one side may be damaged, as described above, and if more force than necessary is applied. Otherwise, there are disadvantages such as not being able to open the lid.

In view of the above-mentioned problems, the present inventor developed the present invention to effectively solve the problems.

An object of the present invention is to provide a clock device that can securely lock a lid and a base while minimizing the number of parts, and can easily and effortlessly remove the lid from the base.

In order to achieve such an object, the present invention attaches a locking plate with locking pieces formed at both ends to the back surface of the lid body, and connects the locking portion to which the locking pieces lock with a notch provided in the base body. It is characterized in that an opening/closing operation portion having a width approximately equal to the length of the locking plate is provided at the end of the lid near the locking plate.

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a magnetic sheet recording and reproducing apparatus to which a locking device according to the present invention is applied.

Reference numeral 1 denotes a lid, one end 2 of the lid 1 is connected to a base 3, and the lid 1 can be opened and closed with respect to the base 3.

A locking plate 6 having two locking pieces 5, 5 formed at both ends is attached to the side 4 opposite to the one end 2 of the lid 1 on the back surface of the lid 1 and in the side direction.

A notch 7 opening upward and laterally is formed in the base body 3 at a position facing the locking plate.

At both ends of the notch 7, locking portions 8, 8 are formed to which the locking pieces 5, 5 lock.

2 and 3 are cross-sectional views showing a state in which the lid body 1 is locked to the base body 3. FIG.

The side portion 4 of the lid body 1 has a shape that is approximately curved upward, and a bulging portion 9 that bulges downward is formed on the back surface of the side portion 4.
The locking plate 6 is integrally connected to the lower end of the bulge 9 with screws 10 or the like.

Further, an opening/closing operation part 11 is formed at the outer end of the side part 4, and the lower end 12 of this opening/closing operation part 11 is wide so that the operator can easily and effortlessly push up the lid body 1. .

Further, a locking plate 6 is provided below the locking plate 6 at the time of locking.
A notch 7 is formed so as to face the.

This notch 7 has an oval-shaped cross section in order to receive the locking plate 6 from above and to enable the operator's fingers to push up the lower end 12 of the opening/closing operation part from below. There is.

As shown in FIG. 3, at both ends of the locking plate 6 attached to the bulge 9, locking pieces 5 are bent downward in a U-shape, and
5, and the distal end of the locking piece 5 is formed with an enlarged portion 13.

A locking portion 8 to which the enlarged portion 13 is locked is formed at the left and right upper ends of the notch 7 in the drawing, and the upper portion of the enlarged portion 13 abuts and locks the lower portion of the locking portion 8.

4 and 5 show a modified embodiment of the present invention, in which the groove 15 to which the enlarged part 13 of the locking piece 5 locks is connected to the notch 7.
groove 16 formed on the side wall of the locking piece 5 and the tip of the locking piece 5.
It is possible to maintain the same locking state as described above even if the locking member is formed with a.

The locking device configured as described above locks the lid 1 with the base 3 by placing the lid 1 on the base 3 and lightly pressing the side 4 of the lid 1 from above to lock the enlarged portion 13. 13 is locked to the locking parts 8, 8, and the lid body 1 is locked to the base body 3.

Next, when the lower end 12 of the opening/closing operation part is pushed up in the locked state, an equal force is applied to the two locked parts, and the enlarged part 13.13
The locking state between the locking portions 8 and 8 can be easily released, and the lid can be opened.

As is clear from the above description, according to the present invention, a locking plate with locking pieces formed at both ends is attached to the back surface of the lid, and a notch is formed in the base at a position corresponding to the locking plate. A locking portion for locking the locking piece is formed in this notch, and an opening/closing operation portion having a width approximately equal to the length of the locking plate is formed at the end of the lid near the locking plate. This allows the lid to be reliably locked to the base with a minimum number of parts, and when the lid is removed from the base, an equal and perpendicular force is applied to each locking point, making it easy to remove the lid without strain. It has many advantages, such as being able to open the lid and reliably preventing damage caused by distortion of the lid.

[Brief explanation of the drawing]

The drawings show a preferred embodiment of the present invention, and FIG. 1 is a perspective view of a magnetic sheet recording and reproducing device to which a locking device according to the present invention is applied, and FIGS. 2 and 3 show main parts of the present invention. 4 and 5 are cross-sectional views of essential parts of modified embodiments of the present invention. In the drawings, 1 is a lid body, 3 is a base body, 5 is a locking piece, 6 is a locking plate, 7 is a notch, 8 is a locking part, and 11 is an opening/closing operation part.

Claims (1)

[Scope of utility model registration request] In a locking device that connects a lid to one end of a base of the device and locks the base and lid so that they can be opened and closed at the other end, the back of the middle part in the side direction of the opening/closing end of the lid has a , a locking plate integrally formed with a pair of locking pieces having both ends bent in a U-shape and having an enlarged portion at the tip thereof is attached in the side direction of the lid body, and the side edge of the lid body near the locking plate is attached. An opening/closing operation part is formed with a width approximately equal to the length of the locking plate, and a notch with an upper and side opening is formed at a position of the base body corresponding to the locking plate, and the notch has a width that is approximately equal to the length of the locking plate. A locking device characterized in that locking portions are provided at upper portions of both ends of the locking piece, with which the enlarged portions of the locking piece lock.