JPS6213168A - Attaching and detaching device - Google Patents

Abstract

PURPOSE:To connect strongly two members with a simple structure and to disconnect them easily by providing a lock formed with a slope to one member and engaging the lock to an engaging part provided to the other member and screwing the member having the engaging part. CONSTITUTION:In disconnecting a grip 6 from a camera main body 1, a pushbutton 12 is turned reversely to disengage meshing between a flage 17 and a hole 7a. In pushing the pushbutton 12 in the direction of arrow B, since engaging parts 8a, 8b are disconnected from an opening 3 and a claw 4 respectively, the grip 6 is disconnected from an opening 3 and a claw 4 respectively, the grip 6 is disconnected from the camera main body 1. Further, a slope is formed respectively to the opening 3 and the claw 4 provided to the holding member 2 of the camera body 1 to be engaged with the engaging parts 8a, 8b of a slider 8, then there is no gap between them. Further, even when the tolerance of the components has a variation, strong tightening is attained by adjusting the tightening amount by the pushbutton 12. Thus, no gap takes place between the camera main body 1 and the grip 6 and strong mounting is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an attachment/detachment device, for example, an attachment/detachment device suitable for use between a video camera body and a grip portion.

[Technical background of the invention]

The mechanism of the attachment/detachment device between the video camera body and the grip is as follows.
Conventionally, the configuration was as shown in FIGS. 5 to 7.

That is, a holding member 2 is provided at the bottom of the video camera body 1. A pair of openings 3 are formed on the front surface of this holding member 2, and a pair of claws 4 are provided on the bottom surface with screws 5.
It is installed well. On the other hand, the grip portion 6 is composed of a grip body 7 and a slider 8, as shown in FIG. A flange 9 is located near the top of the grip body 7.
A plate 10 is attached to the jigrip main body 7 by screws 11 at the upper part of the flange 9 with a predetermined gap therebetween. The slider 8 is slidably mounted between the flange 9 and the plate 10. As shown in FIG. 6, this slider 8 has a pair of hook-shaped engaging portions sa and sb formed at one end and both sides, respectively. Further, a bent portion 8c is formed at one end opposite to the engaging portion 8a, and a push button 12 is attached to this bent portion 8c with a screw 13. Further, one end of a spring 14 is locked to the slider 8, and the other end of the spring 14 is fixed to the flange 9. The push button 12 attached to the bent portion 8C of the slider 8 protrudes outward through the hole 6a formed in the grip portion 6 due to the biasing force of the spring 14. Further, the engaging portions 3a- and 8b are respectively connected to the openings 3 of the holding member 2.
and can be engaged with and disengaged from the claw portion 4.

The conventional attachment/detachment device configured as described above has a spring 1
4, the engaging portions 8as8b each close to the opening 3.
and the claw portion 4, and the grip body 7 is attached to the camera body l.
It is attached and fixed to. Further, by pushing the push button 12 against the biasing force of the spring 14, the syslider 8 moves to the left in the figure.

The engaging parts 8a and 8b are the opening part 3 and the claw part 4, respectively.
The grip body 7 was detached from the camera body 1.

[Problems with background technology]

In the conventional attachment/detachment device described above, attachment/detachment is facilitated by the opening 3, the claw portion 4, and the engaging portion 8a.

The respective sliding surfaces of the slider 8b were parallel to the sliding surface of the slider 8. For this reason, the engagement between the opening 3 and the claw 4 and the engagement sections 8a and 8b was impossible unless there were gaps between them. This gap causes the camera body 1 attached to the grip body 7 to become unstable, causing a problem in that pre-position occurs during photographing.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide an attachment/detachment device that can reliably connect and fix the engaging portions of two components without any gaps, and can also be easily detached.

[Summary of the invention]

In the present invention, of two members to be attached and detached, the first member is provided with a locking portion having an inclined surface, and the second member is provided with a locking portion formed on the slope of the locking portion provided on the first member. A member having an engaging portion capable of abutting and locking is provided, and the member having the engaging portion is moved by a moving means whose stopping position can be finely adjusted by a threaded portion provided on the second member. This was done in such a way that the intended purpose was achieved.

[Embodiments of the invention]

Hereinafter, one embodiment of the attachment/detachment device according to the present invention will be described with reference to the drawings.

An embodiment of the present invention is shown in FIGS. 1 and 2. FIG.

In these figures, the same or equivalent parts as in the conventional example shown in Figs. 5 to 8 are denoted by the same reference numerals, and the explanation thereof will be omitted. A pair of openings (locking portions) 3 formed on the front surface of the holding member 2 are formed in an inclined shape with a lower height from the bottom surface at the entrance and a higher height at the back. The engagement portion 8a of the slider 8 that engages with this opening 3 also has an abutment surface that is inclined to match the inclination of this opening 3. Similarly, holding member 2
A pair of claw portions (locking portions) 4 attached to the opening 3 with screws 5 are also attached so as to be inclined in the same direction as the opening 3. A shaft 15 is fitted into a mounting hole 8d formed in a bent portion 8C of the slider 8, and is secured to both sides of the slider 8 by E-rings 16. This #J15 passes through a hole 7ai formed in the grip body 7 and projects outward, and a push button 12 is attached to this projecting end. Further, a counterbore hole 7b having an inner diameter and depth into which the push button 12 can be inserted is formed on the outer surface of the grip body 7 of the hole 7a.

A flange portion 17 having an outer diameter thread is provided approximately in the middle of the shaft 15, and can be screwed into an inner diameter thread formed in the hole 7a of the grip body 7. As shown in FIG. 2, a chamfer 7C is formed at the opening of the hole 7a on the inner surface of the grip body 7. In the normal state, due to the biasing force of the spring 14, one outer end of the seventh rank portion 17 of the shaft 15 is still in contact with the chamfered portion 7C of the hole 7a, and at least a portion of the push button 12 protrudes from the counterbore hole 7b. It is configured as follows. At this time, the engaging portion 8a
.

There is a slight gap between 8b and the front surface of the opening 3 and the front surface of the claw portion 4, respectively.

The operation of this embodiment configured as described above will be explained below. When attaching the grip part 6 to the video camera body 1 via the holding member 2ft, the spring 14
The engaging portions 8a and 3b are respectively held by the holding member 2 by the urging force of
The opening 3 and the claw 4 are engaged with each other. At this time, the engaging portion 8a
, 8b, the opening 3 and the claw portion 4 are in contact with each other via inclined surfaces. A gap B2x is formed between the front surfaces of the opening portion 3 and the claw portion 4, respectively, and the engaging portions 8a, 8b. At this time, the flange portion 17 of the shaft 15 is attached to the surface 1 formed in the hole 7a of the grip body 7, as shown in FIG.
It is guided and abuts on the v-shaped portion 7C. When the push button j2 is rotated from this state, the screws formed in the flange portion 17 and the hole 7a engage with each other, as shown in FIG. 4, and the push button 12 moves in the direction of arrow A. As the push button 12 moves, the slider 8 also moves in the direction of arrow A via the shaft 15.

As a result, the locking parts 8a and 8b of the slider 8 guided by the flange part 9 and the plate 10 are moved to the opening part 3 and the claw part 4, respectively.
It moves along the inclined surface and is firmly fitted.

When pushing the grip part 6 one step away from the camera body 1,
The push button 12 is rotated in the opposite direction to disengage the flange portion 17 and the hole 7a. Thereafter, when the push button 12 is pushed in the direction of arrow B, the engaging portions 8a, 81) are separated from the opening portion 3 and the claw portion 4, respectively, so that the grip portion 6 can be removed from the camera body 1.

As described above, according to this embodiment, the opening 3 and the claw 4 provided in the holding member 2 on the side of the camera body 1 are each formed with an inclined surface to engage with the engaging parts 8a and 8b of the slider 8. As a result, there is no gap between them. Furthermore, even if the dimensions of these parts vary within tolerances, the push button 12 can be tightened firmly by adjusting the amount. Therefore, there is no gap between the camera body and the grip part 6, and the camera body is firmly attached.

Therefore, it is possible to grip the grip part 6 and perform stable photographing.

In the above-mentioned embodiment, a device for attaching and detaching the video camera body 1 and the grip portion 6 has been described, but it can also be applied as a device for attaching and detaching two other members.

〔Effect of the invention〕

As described above, according to the present invention, in the attachment/detachment device between the camera body and the grip part, the locking part having the sloped surface is provided on one member side, and the engaging part provided on the other member side. Since the two members are engaged and the member having the engaging portion can be screwed, the two members can be firmly connected with a simple structure and easily separated.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the attachment/detachment device according to the present invention, FIG. 2 is an enlarged sectional view of the main part of FIG. 1, and FIGS. 3 and 4 are sectional views showing the operation of this embodiment. , FIG. 5 is an exploded perspective view showing a conventional attachment/detachment device, FIG. 6 is a perspective view of a video camera provided with the conventional attachment/detachment device, and FIG. 7 is a sectional view of a main part of FIG. 6. 1... Video camera (first member) 3... Opening (locking part) 4... Claw part (locking part) 6
...Grip part (second member) 7...Grip body, 7a...hole, end...slider 8a, 8b...engaging part, 12...push button 17.
・・Flange part

Claims (1)

[Claims] a locking portion provided on the first member and having an inclined surface;
a member provided on a second member and having an engaging portion capable of abutting and engaging with an inclined surface of a locking portion provided on the first member;
A moving means for moving the member having the engaging portion; and a threaded portion provided on the second member to lock the stop position of the moving means in a finely adjustable manner; and said second member.