JP2539170Y2 - Lid opening / closing operation mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to, for example, a lid provided at an opening of a battery storage chamber of a camera, and particularly to a mechanism for opening and closing the lid.

[Conventional technology and issues]

Conventionally, as a lid for opening and closing a case for accommodating a small object such as a battery, for example, there is a battery lid provided in a battery accommodating chamber of a camera. An operation member is rotatably provided on the battery cover to open and close the battery cover. When the opening and closing operation member is at the first rotation position, the cover can be opened, and the opening and closing operation member is connected to the second opening member. When in the rotated position, the lid is locked in the closed position.

In order to position the opening / closing operation member at a predetermined rotation position, a V-shaped groove is formed on the outer periphery of the opening / closing operation member, and a protruding portion engageable with the V-shaped groove is provided between the opening / closing operation member and the lid. A leaf spring or the like is inserted. That is, when the opening / closing operation member is in the first and second rotation positions, the projections of the leaf springs respectively engage with the V-shaped grooves, and the opening / closing operation member is fixed at that position.

[Problems to be solved by the invention]

However, according to the configuration in which a member such as a leaf spring is provided between the opening / closing operation member and the lid as described above, in assembling the lid and the opening / closing operation member, it is necessary to fix the leaf spring to the lid, and the number of parts is reduced. There is a problem that there are many.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lid operating member positioning mechanism which facilitates assembly of a lid and an opening / closing operation member and can reduce the number of parts.

[Means for solving the problem]

The opening / closing operation mechanism of the lid according to the present invention includes an opening / closing operation member supported by the lid so as to be freely displaceable, and means for positioning the opening / closing operation member with respect to the lid.
A locking groove formed at a predetermined position of the lid, and a positioning projection formed integrally with the opening / closing operation member and elastically displaceable and capable of being locked in the locking groove, wherein the positioning projection is opened and closed. It is characterized in that elasticity is given by a long hole formed along the peripheral edge of the member.

〔Example〕

 The present invention will be described below with reference to the illustrated embodiments.

FIG. 1 is an exploded perspective view showing a lid opening / closing operation mechanism according to a first embodiment of the present invention. The lid 10 is for opening and closing an opening of a battery accommodating chamber formed in a camera body.

The lid 10 has a pair of claws 12 and 13 formed at the end of the bottom 11.
And a guide hole 15 formed in the side wall portion 14. Second
As shown in the figure, the claws 12 and 13 are engaged with a receiving portion 21 formed on the camera body 20, and the guide hole 15 can be fitted into a guide projection 22 formed on the camera body 20. Therefore, the lid 10 is provided with the guide hole 15 in the guide protrusion of the camera body.
22 and the claws 12 and 13 are engaged with the receiving portion 21 and attached to the camera body along the direction of arrow A in FIG.

A circular groove 16 is formed in the lid 10, and locking grooves 17 and 18 having a V-shaped cross section are formed on the outer periphery of the circular groove 16. The locking groove 17 is provided in the vicinity of the guide hole 15, and the locking groove 18 is provided at a position where the lid 10 is moved approximately 90 ° counterclockwise from the locking groove 17 when viewed from above in FIG. The opening and closing operation member 30 is rotatably and slidably fitted in the circular groove 16, and a positioning projection 31 which can be locked in the locking grooves 17 and 18 on the outer peripheral surface of the opening and closing operation member 30.
Is provided. An operation portion 32 is formed on the lower surface of the opening / closing operation member 30, and the operation portion 32 is inserted into an opening 19 formed in the center of the circular groove 16. A locking boss 33 protrudes from the upper surface of the opening / closing operation member 30, and as shown in FIG. 2, the locking boss 33 abuts on a raised portion 23 formed on the camera body 20, thereby engaging the boss. The stop boss 33 and the side wall portion 14 of the lid 10 sandwich the raised portion 23, and the lid 10 is fixed to the camera body 10.

The opening / closing operation member 30 is formed of a synthetic resin, and has an elongated hole 34 extending in an arc shape along the peripheral edge. The positioning projection 31 is provided on a side opposite to the elongated hole 34 and at a portion corresponding to substantially the center of the elongated hole 34. Thus the positioning protrusion
The opening / closing member 30 is provided integrally with the opening / closing operation member 30, and is provided with a long hole 34, so that it can be elastically displaced in the radial direction. Thus, the band-like portions 35 formed on both sides of the positioning projection 31 constitute a click spring.
That is, the positioning projection 31 bends the belt-shaped portion 35 engaging with the outer peripheral wall surface of the circular groove 16 and retreats, and protrudes by the spring force of the belt-shaped portion 35 engaging with the locking grooves 17 and 18.

The plate-shaped battery contact piece 40 is attached to the bottom 11 of the lid 10. The battery contact piece 40 has a connection hole 41 into which a plurality of fixing protrusions 11a formed on the bottom portion 11 are inserted.
The fixing protrusions 11a are fixed to the lower portion 11 by inserting the a through the connecting hole 41 and heating and deforming the tips of the fixing protrusions 11a.
Further, the battery contact piece 40 has electrode portions 42 and 43 that engage with electrodes of a battery (not shown), and these electrode portions 42 and 43 are raised in a truncated cone shape. A restriction slit 44 extending in an arc shape is formed between the electrode portions 42 and 43, and the locking boss 33 of the opening / closing operation member 30 protrudes from the battery contact piece 40 through the restriction slit 44. The restriction slit 44 is formed along a path along which the locking boss 33 rotates, and is provided over about 90 ° about the axis of the opening / closing operation member 30. Both ends of the restriction slit 44 are stopper portions 45 and 46 with which the locking boss 33 can abut.

The operation of the present embodiment will be described with reference to FIGS. 3 (a) and 3 (b).

When the lid 10 is opened and closed with respect to the camera body 20, as shown in FIG. 3 (a), the opening / closing operation member 30 is in the open position. That is, the positioning protrusion 31 is provided in the locking groove on the guide hole 15 side.
17 is engaged. In this state, the locking boss 33 is released from the raised portion 23 (FIG. 2) of the camera body 20, so that the lid 10 is movable with respect to the camera body 20, and is displaced rightward in the figure. After the claws 12 and 13 come off from the receiving part 21, the lid 10 is displaced vertically downward in the figure to
Is opened and the lid 10 is closed by the reverse operation. The locking boss 33 is provided at one of the stopper portions of the restriction slit 44.
46, the opening and closing operation member 30 is restricted from further rotating clockwise.

With the lid 10 closing the opening of the battery storage chamber,
When the lid 10 is fixed to the camera body 20, the opening / closing operation member 30 is rotated counterclockwise from the state shown in FIG. As a result, the positioning projection 31 is disengaged from the locking groove 17 and engages with the outer peripheral wall portion of the circular groove 16 to bend the band-shaped portion 35 and retreat inward. After that, the positioning protrusion 31
When reaching the portion 18, as shown in FIG. 3 (b), the positioning protrusion 31 is engaged with the locking groove 18 by the spring force of the band portion 35. In this state, the locking boss 33 abuts on the raised portion 23 (FIG. 2) of the camera body 20, so that the lid 10 cannot move in the opening direction. At this time, the locking boss
Reference numeral 33 abuts on the other stopper portion 45 of the restriction slit 44, thereby restricting further rotation of the opening / closing operation member 30 in the counterclockwise direction.

FIG. 4 is an exploded perspective view showing a lid opening / closing operation mechanism according to a second embodiment of the present invention.

This embodiment has basically the same configuration as the first embodiment, but differs in the configuration for limiting the rotational displacement of the opening / closing operation member 30. That is, a locking protrusion 51 that protrudes in the radial direction is formed on the outer peripheral surface of the opening / closing operation member 30, and a restriction groove 52 with which the locking protrusion 51 engages is provided on the outer peripheral wall surface of the circular groove 16. The restriction groove 52 extends over about 90 ° about the axis of the opening / closing operation member 30.

On the other hand, the arc-shaped slit 44 formed in the battery contact piece 40 is formed to be longer than the restriction slit 44 in the first embodiment, and both end portions thereof are stopper portions to which the locking boss 33 can abut. Absent. That is, as understood from FIGS. 5 (a) and 5 (b), the locking boss 33 is provided with the opening / closing operation member 30.
When the positioning projection 31 is locked in the locking grooves 17 and 18, it is located at a position separated from both ends of the slit 44.

Other configurations are the same as those of the first embodiment, and a detailed description thereof will be omitted.

The operation of this embodiment is basically the same as that of the first embodiment,
Only the effect of limiting the rotation of the opening / closing operation member 30 is different.

As shown in FIG. 5 (a), when the lid 10 is opened and closed with respect to the camera body 20, the positioning projection 31 engages with the locking groove 17 on the guide hole 15 side. boss
33 is open from the raised portion 23 of the camera body 20 (FIG. 2). The locking projection 51 is provided on one stopper 53 of the restriction groove 52.
And restricts further rotation of the opening / closing operation member 30 in the clockwise direction.

When the lid 10 is fixed to the camera body 20 in a state where the lid 10 closes the opening of the battery accommodating chamber, when the opening / closing operation member 30 is rotated counterclockwise from the state shown in FIG. , The positioning protrusion 31 is disengaged from the locking groove 17 and the circular groove
It moves while engaging with the outer peripheral wall portion of 16 and engages with the locking groove 18. At this time, the locking convex portion 51 is connected to the other stopper portion of the restriction groove 52.
The opening / closing member 30 contacts the opening 54 and restricts further rotation of the opening / closing member 30 in the counterclockwise direction.

As described above, in each of the above-described embodiments, a member such as a leaf spring is not provided between the opening / closing operation member 30 and the lid 10 as in the related art. After fitting, the battery contact piece 40 only needs to be attached. Therefore, assembling of the lid 10 and the opening / closing operation member 30 is very easy. In addition, the elastic positioning protrusion 31 is
Are provided integrally with each other, so that a leaf spring or the like becomes unnecessary, and the number of parts is reduced as compared with the conventional configuration.

Although the opening / closing operation member 30 has a configuration in which the opening / closing operation member 30 is rotationally displaced with respect to the lid 10 in each of the above embodiments, it is needless to say that the present invention can be applied to a configuration in which the opening / closing operation member 30 moves in parallel.

In each of the above embodiments, the lid 20 slides with respect to the camera body 11, but the present invention can also be applied to a structure in which the lid 20 is hinged to the camera body.

[Effect of the invention]

As described above, according to the present invention, it is easy to assemble the lid and the opening / closing operation member, and the number of parts can be reduced as compared with the conventional configuration.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a lid opening / closing operation mechanism according to a first embodiment of the present invention. FIG. 2 shows a state where the lid is attached to a camera body.
FIG. 3 (b) is a cross-sectional view taken along the line II-II, FIG. 3 (a) is a plan view showing the lid when the opening / closing operation member of the first embodiment is in the open position, FIG. 3 (b) is FIG. FIG. 4 is a plan view showing the lid when the opening / closing operation member of the first embodiment is in the closed position, FIG. 4 is an exploded perspective view showing the lid opening / closing operation mechanism according to the second embodiment of the present invention, and FIG. FIG. 5B is a plan view showing the lid when the opening and closing operation member of the second embodiment is at the open position, and FIG. 5B is a plan view showing the lid when the opening and closing operation member of the second embodiment is at the closing position. . 10 Lid 17, 18 Lock groove 30 Opening / closing operation member 31 Positioning protrusion 33 Locking boss 34 Slot 35 Portion 44, Limit slit 45, 46 Stopper part 51: Locking projection 52: Restriction groove

Claims (3)

(57) [Scope of request for utility model registration] An opening / closing member which is displaceably supported by a lid; and means for positioning the opening / closing member with respect to the lid, wherein the positioning means is formed at a predetermined position of the lid. The positioning groove is formed integrally with the opening / closing operation member, and includes a positioning protrusion that is elastically displaced and can be locked in the locking groove, and the positioning protrusion extends along a peripheral edge of the opening / closing operation member. An opening / closing operation mechanism for a lid, wherein elasticity is imparted by an elongated hole formed by pressing. 2. An opening / closing operation member has a locking boss, a lid is provided with a battery contact piece having a limiting slit formed therein, and the locking boss is connected to the limiting slit with displacement of the opening / closing operation member. Wherein the opening and closing operation member is displaced and locked by stoppers formed at both ends of the restriction slit, thereby limiting the displacement of the opening and closing operation member.
The opening and closing operation mechanism of the lid according to the item. 3. The opening and closing operation member has a locking projection, the lid is formed with a restriction groove, and with the displacement of the opening and closing operation member, the locking projection moves within the restriction groove to limit the restriction. The lid opening / closing operation mechanism according to claim 1, wherein the lid is engaged with stoppers formed at both ends of the groove to limit the displacement of the opening / closing operation member.