JPH0538343Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a shutter release switch for a camera.

[Conventional technology]

Close the switch with the shutter release button,
A camera that operates the shutter by energizing an electromagnetic coil and driving a movable iron core, which allows soft-touch operation of the shutter release button and remote control of the shutter, was developed in 1982. As shown in Japanese Patent No. 57425, in this type of camera, conventionally, as shown in FIG. The shutter release button 6 was opened and closed by a shutter release button 6, which was provided on the outer surface of the shutter by a spring 4, an E-ring 5, etc., and could be pushed and operated.

[Problem that the invention attempts to solve]

By the way, as mentioned above, in the case of a camera equipped with a conventional switch-operated shutter, the switch and shutter release button are provided separately inside and outside the camera body, making it difficult to assemble the shutter release switch part. However, when repairing the shutter release switch, the body must be disassembled, and furthermore, the operation of the shutter release switch cannot be tested until after it has been assembled to the body. Ta.

The present invention was developed in view of these points, and it not only makes it easier to assemble and repair the shutter release switch, but also makes it possible to test the operation of the shutter release switch independently before assembling it to the body. The purpose is to

[Means for solving problems]

In the camera shutter release switch of the present invention, a recess 11 is formed on the outer surface of the camera body 10, and contacts 26, 27 and an elastic locking claw 21 of the shutter release switch are provided in the recess 11 of the body 10. Insert the switch body 20 consisting of
The elastic locking pawl 21 of the switch body 20 is engaged with the side wall 12 of the recess 11, and the switch body 20 is removably installed in the recess 11. An operating part 32 that opens and closes the contacts 26 and 27 of the switch body 20 and an operating part 32 that opens and closes the contacts 26 and 27 of the switch body 20 and a side wall 12 of the concave part 11 and the outside of the switch body 20 are connected to the operation part 31 which is pushed and operated by closing the recess 11 of the switch body 10. an edge 33 that engages between
A shutter release button 30 comprising a shutter release button 30 is attached so as to be operable.

[Effect]

The shutter release switch of the camera of the present invention has contact points 26 and 2 of the shutter release switch.
The shutter release button 30 is movably attached to the switch body 20 provided with the shutter release button 7, and the shutter release button 30 is assembled into a unit.
The camera body 10 is removably mounted in a recess 11 formed on the outer surface of the camera body 10 via an elastic locking claw 21 provided in the camera body 10.

〔Example〕

An embodiment of a camera shutter release switch according to the present invention will be described with reference to FIGS. 1 and 2.

Reference numeral 10 denotes a body constituting the outer casing of the camera. This body 10 is made by combining a plurality of members made of synthetic resin, and an oval recess 11 penetrating inside is formed on the upper surface of the body 10. Fitting pieces 13 are protruded from each of the four corners of the inner periphery of the lower end of the side wall 12, and adjacent to each fitting piece 13, fitting pieces 13 are provided at both opposing long sides of the oval of the side wall 12, respectively. A pair of guide locking protrusions 14 having a triangular cross section are provided in a protruding manner.

20 is a switch body, and this switch body 20
is made of synthetic resin and has an oval outer shape that is smaller than the recess 11 of the body 10, and a pair of elastic locking claws 21 are provided on the lower side of both opposing long sides of the oval. Each guide locking protrusion 14
Guide locking protrusions 22 each having a triangular cross section are located between the elastic locking claws 21 and protrude from both long and short sides of the oval shape. In addition, fitting recesses 23 are cut out at the lower portions of the four corners corresponding to each fitting piece 13 of the recess 11.

Further, a storage section 24 is formed at the center of the upper surface of the switch body 20, and circular holes 25 are formed at both ends of the upper surface of the switch body 20 with the storage section 24 in between. Inside is the plate-shaped contact point 2 of the shutter release switch.
6, 27 are housed, one end of each contact 26, 27 is fixed to the switch body 20,
The other end of the upper contact 26 faces the other end of the lower contact 27 so as to be freely pushable, and one end of a coil spring 28 is fitted into each of the circular holes 25, respectively.

The switch body 20 provided with the contacts 26 and 27 of the shutter release switch is installed in the recess 11 of the body 10, and the respective fitting recesses 23 and the respective fitting pieces 13 of the recess 11 are fitted into each other. The switch body 20 is positioned at a predetermined distance from the side wall 12 of the recess 11 by the inner end surface and upper surface of each fitting piece 13, and each elastic locking pawl 21 is positioned at a predetermined distance from the side wall 12 of the recess 11. The switch body 20 is held in place by being locked to the lower part of each guide locking projection 14 so as not to come off.

Reference numeral 30 denotes a shutter release button. This shutter release button 30 is made of synthetic resin, and has an operating protrusion as an operating part on the lower surface of an oblong plate-shaped operating part 31 of approximately the same size as the recess 11 of the body 10. A portion 32 is provided corresponding to the other end of the upper contact point 26 of the shutter release switch, and an edge portion 33 is provided at the lower part of the periphery of the oval operating portion 31. Outside and recess 1
1, protrudingly provided corresponding to the gap between the side wall 12 of the
Further, elastic pieces 34 are protruded from the lower ends of both long sides and both short sides of the oval edge 33, and long holes 35 are formed in each of the elastic pieces 34, respectively. 20 guide and locking protrusions 22 are formed corresponding to each other.

And this shutter release button 30
is attached to the upper part of the switch body 20, and the elongated holes 35 of each elastic piece 34 of the switch body 20 engage with each guide locking projection 22 of the switch body 20, so that the shutter release button 30 is attached to the switch body 20. The other end of the coil spring 28 fitted into each circular hole 25 of the switch body 20 comes into contact with the lower surface of the operating part 31, so that the shutter release button 30 is moved upwardly. When the shutter release button 30 is pushed toward the switch body 20 against the coil spring 28, the operating protrusion 32 moves the upper contact 26 of the shutter release switch to the lower contact. 27 to close the contacts 26 and 27 and stop pressing the shutter release button 30, the coil spring 28 causes the shutter release button 30 to return upward and close the upper contact 26 of the shutter release switch. Due to its own elasticity, the contacts 26 and 27 open apart from the lower contact 27.

Further, with the switch body 20 installed in the recess 11 of the body 10, a shutter release button 30 attached to the upper part of the switch body 20 is attached.
The operation part 31 and edge 33 close the recess 11 of the body 10, and the contacts 26, 27 of the shutter release switch, the coil spring 28, and the body 10 are closed.
0, its edges 33 and each elastic piece 3
4 is the outside of the switch body 20 and the side wall 1 of the recess 11
It engages in the gap between 2 and 2 in a vertically movable manner, and can be smoothly moved during the pushing operation.

When manufacturing a camera, the contacts 26 and 27 of the shutter release switch are provided, and the switch body 2 is equipped with a coil spring 28.
By attaching the shutter release button 30 to 0, the shutter release switch can be assembled and made into a unit, and the operation of the shutter release switch can be tested in this unit state.
Next, the shutter release switch can be assembled by fitting the unitized switch body 20 and shutter release button 30 into the recess 11 formed in the body 10.

When repairing, use a jig to repair the body 1.
0 to each elastic locking claw 2 of the switch body 20.
1 is pushed inward, each elastic locking pawl 21 comes off from the lower part of each guide locking protrusion 14 of the recess 11 of the body 10, and the unitized switch body 20 and shutter release button 30 are removed from the body 10. It can be removed from the recess 11, and after removal, each elastic piece 3 of the shutter release button 30
4 outward, the elongated holes 35 of each elastic piece 34 are disengaged from each guide locking protrusion 22 of the switch body 20, and the shutter release button 30 can be removed from the switch body 20.

[Effect of idea]

As described above, according to the present invention, when manufacturing a camera, the shutter release switch can be assembled and made into a unit by attaching the shutter release button to the switch body provided with the contacts of the shutter release switch. The operation of the shutter release switch can be tested in this unit state, and then the unitized switch body and shutter release button are inserted into the recess formed on the outer surface of the camera body, and the elastic The shutter release switch can be assembled by removably mounting the switch body into the recess of the body via the locking pawl. When repairing, the shutter release switch can be repaired or replaced by itself without disassembling the camera body by removing the unitized switch body and shutter release button from the recessed part of the body. In addition, with the switch body installed in the concave part of the body, the concave part of the body can be closed with the operation part and edge of the shutter release button attached to the top of the switch body, and the contact point of the shutter release switch can be closed. In addition to protecting the inside of the body, the edge of the shutter release button can be engaged with the gap between the outside of the switch body and the side wall of the recess so that it can move up and down, allowing the shutter release button to be pressed. Allows for smooth movement during operation.

[Brief explanation of the drawing]

1 and 2 show an embodiment of a shutter release switch for a camera according to the present invention.
2 is an exploded perspective view of the shutter release switch portion of a camera, FIG. 2 is a perspective view of the camera, and FIG. 3 is a sectional view of the shutter release switch portion of a conventional camera. DESCRIPTION OF SYMBOLS 10... Body, 11... Recess, 12... Side wall, 20... Switch body, 21... Elastic locking claw, 26, 27... Contact, 30... Shutter release button, 31... Operation section , 32... actuating protrusion as an actuating part, 33... edge.

Claims (1)

[Claims for Utility Model Registration] A recess is formed on the outer surface of the camera body, and a switch body comprising a contact point and an elastic locking pawl for a shutter release switch is inserted into the recess of the body. The switch body is removably installed in the recess by locking the elastic locking claw of the device body to the side wall of the recess, and the switch body is operated by closing the recess of the body. A shutter release button is operably attached to the operating section provided with the shutter release button, which comprises an operating section that opens and closes contacts of the switch body, and an edge that engages between the outside of the switch body and the side wall of the recessed portion. A camera shutter release switch characterized by: