JPH0238269Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a rotatable lid with a locking function, which is used as a battery lid of a camera, etc.

[Prior Art] Rotatable lids are widely used in various devices, and for example, in the field of cameras, they are used as battery lids with battery contacts fixed inside. For example, as described in Japanese Utility Model Application Publication No. 58-13321, this battery cover has a battery cover that is rotatably attached to the camera body, a claw is formed at the tip, and a finger rest is integrated on the back. The formed lock member, the spring member whose ends extending diagonally forward give spring properties in the front-rear direction, and the piece extending diagonally upward giving spring properties in the vertical direction, and the lock member are attached to a battery. The lock member is slidably fitted into a groove in the battery cover, and a finger rest is protruded from an opening formed in the groove. It is known that a battery contact piece is fixed to the battery cover so that the member does not slip out of the groove, and a spring member is inserted into the groove so as to push the rear end of the locking member. This battery cover is
When the lock member is engaged with the camera body,
Biasing the battery cover in the opening direction with one spring member,
This has the advantage that the locking member can be biased in the locking direction at the same time, but it requires a large number of parts and uses a spring member with a complicated shape, which increases costs and increases assembly costs. It also has drawbacks such as being troublesome.

[Problem that the invention attempts to solve]

The present invention allows the biasing force in two directions to be obtained from the lock piece itself, eliminates the need for a spring member with a complicated shape, and also reduces the number of parts by making the lid body and the lock piece integrally. The object of the present invention is to provide a lid structure that is easy to assemble and is inexpensive.

[Means for solving problems]

In order to achieve the above object, the present invention makes the lid body and the lock piece integrally, and the root part of the lock piece is curved so as to be slidably stacked on the lid body. A holding member is placed on the top. Since the curved base has spring properties, it can bias the lock piece in the locking direction, and when the lid body is closed, the top of the base comes into contact with the fixing part, so the lid The main body can be biased in the opening direction.

Hereinafter, an embodiment in which the present invention is applied to a battery cover of a camera will be described in detail with reference to the drawings.

〔Example〕

In FIG. 2, the lid body 10 and the locking piece 11 are integrally made of plastic. A groove 10a is formed in the center of the lid body 10 with a width and depth that can accommodate the lock piece 11 when it is bent.
A rectangular opening 10b is provided at 0a. Two shafts 10c are provided at the rear end of the lid body 10, and are used as rotation centers of the lid body 10.

The lock piece 11 is provided so as to vertically protrude from the groove 10a of the lid body 10, and has a claw 11a formed at its tip and a finger rest 11b. It is necessary that this locking piece 11 has spring properties at least at its base portion, and this can be easily done by appropriately selecting the material and thickness of the plastic.

As shown in FIG. 3, the springy lock piece 11 is folded back so that its base portion is curved, and then stored in the groove 10a of the lid body 10. In order to hold this lock piece 11 slidably and to prevent it from returning to the state shown in FIG. It covers 10a. This battery contact piece 12 has two bulges 12a formed so as to contact the electrodes of the two batteries, respectively.

FIG. 1 shows the battery cover of the present invention attached to a camera body. camera body 14
A battery storage chamber 15 is formed on the side thereof, and a plurality of batteries 16 are loaded into this chamber. The cover 17 is fixed to the camera body 14 after the shaft 10c of the lid body 10 is fitted into a semicircular bearing 17a. This camera body 14 has
A protrusion 14a is formed on the lower surface of the protrusion 14a, which is positioned above the shaft 10c of the lid body 10 when the cover 17 is fixed, and prevents the shaft 10c from slipping out from the bearing 17a.

When the lid body 10 is closed after loading the battery 16 into the battery storage chamber 15, the claw 11 of the lock piece 11
a engages with the inside of the cover 17 and locks the lid body 10 from opening. In this state, the protrusion 12a of the battery contact piece 12 contacts the electrode of the battery 16, and electricity from the battery 16 is supplied to the electric circuit in the camera body 14 via the battery contact piece 12.

The curved root portion 11c of the lock piece 11 is
Its top is pressed against the lower surface of the camera body 14. As a result, a biasing force is applied to the lid body 10 in the opening direction (counterclockwise direction), and a biasing force is applied to the locking piece 11 in the direction in which the claw 11a protrudes (in the locking direction).
A biasing force acts.

When opening the lid body 10 for battery replacement or the like, the finger hook 11b is slid to the right in FIG. 1, and the claw 11a is removed from the cover 17.
When this lock is released, the biasing force of the curved root portion 11c of the lock piece 11 causes the lid body 10 to
rotates counterclockwise about the shaft 10c, and is opened as shown by the two-dot chain line. Note that this biasing force in the opening direction of the lid body 10 is generated only at the beginning of opening of the lid body 10, and disappears when the curved root portion 11c separates from the lower surface of the camera body 14.

[Effect of idea]

In this invention, the lid body and the lock piece are integrated, the root part of the lock piece is curved and folded back onto the lid body, and the curved root part is pressed against the fixing part. Since a biasing force in the opening direction of the lid body and a biasing force in the locking direction of the locking piece are generated, the conventional spring member having a complicated shape can be omitted. Further, since the spring member is omitted and the lid body and the lock piece are integrally provided, the number of parts is reduced and assembly is facilitated, so that costs can be reduced.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the structure of a battery lid embodying the present invention. FIG. 2 is a perspective view showing the lid body before assembly. FIG. 3 is a perspective view showing the lid body after assembly. 10... Lid body, 10a... Groove, 10b... Opening, 10c... Shaft, 11... Lock piece, 11a...
...Claw, 11b...Finger hook, 11c...Base, 1
2...Battery contact piece, 14...Camera body, 15...
...Battery storage compartment, 16...Battery, 17...Cover.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A locking piece with spring properties is integrally provided on the lid body which is rotatably attached to the fixed part, and a claw formed at the tip of this locking piece is attached to the lid body so that it can be rotated freely. The base of the lock piece is curved and folded back so that it protrudes and the finger hook fits into the opening of the lid body, and is stacked on the lid body, and a pressing member is attached from above, and the claw engages with the fixing part. The lid structure is characterized in that when the lid is in this state, the curved root portion comes into contact with the fixing portion, thereby applying a biasing force in the locking direction of the claw and a biasing force in the opening direction of the lid body. (2) The lid structure according to claim 1, wherein the lid body and the lock piece are integrally molded from plastic. (3) The lid structure according to claim 1, wherein a groove is formed in the lid body so that a locking piece can fit therein. (4) The lid structure according to claim 1, wherein the pressing member is a battery contact piece.