JPH05292370A - Attachment/detachment device of case - Google Patents

Abstract

PURPOSE:To lock automatically a 1st case and a 2nd case in one-touch. CONSTITUTION:When a 2nd case is coupled with a 1st case, a lock button 40 is moved from a lock position P5 to a lock release position P6 against a compression coil spring 42 by a 2nd claw 8. Thus. the lock of a 1st claw 6 at an escaping position P3 is released and the 1st claw 6 slides automatically from the escaping position P3 to a coupling position P4 by a compression coil spring, the 1st claw 6 and the 2nd claw 8 are automatically engaged with each other thereby locking automatically the 1st case and the 2nd case.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a camera body of a portable video camera for business use and a camera adapter or V.
The present invention relates to a housing attachment / detachment device that is optimal for attaching / detaching a camera accessory such as a TR.

[0002]

2. Description of the Related Art The applicant of the present invention has filed a prior application example of an attachment / detachment device for attaching / detaching a camera body casing and a camera adapter casing of a portable video camera for business use (for example, Japanese Patent Application No. 3-301917). No.) was applied first.

In this prior application example, the first body casing of the camera is used.
The housing is provided with a slidable first claw, an operation lever for slidingly operating the first claw, and a lock mechanism for the operation lever, and the first claw is provided on a second case that is a camera adapter case. A second pawl that is engaged and disengaged is provided.

After connecting the second casing to the first casing, the operating lever is operated from the unlocked position to the locked position so that the first pawl is engaged with the second pawl so that the first casing And the second housing are connected to each other, and thereafter the operation lever is locked at the lock position by the lock mechanism.

[0005]

However, in the prior application example, when the second housing is detachably connected to the first housing, the operation lever and the lock mechanism have to be operated one by one, and the operation is difficult. It was troublesome. Further, if the operation lever is forgotten to be locked, there is a risk that the first housing and the second housing may be abruptly separated, and there is a problem in safety.

The present invention has been made to solve the above problems, and provides a housing attaching / detaching device capable of automatically locking the first housing and the second housing with one touch. It is intended to be provided.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, a housing attaching / detaching device according to the present invention comprises a slidable first pawl attached to a first housing and a sliding movement of the first pawl. An operating lever for operating and a second pawl attached to the second housing and engaged with and disengaged from the first pawl are provided, and the first pawl and the second pawl are provided on the first housing. In a case attaching / detaching device for detachably connecting two cases, a means for urging the first claw to move to an engaging position for the second claw, and the operation lever for setting the first claw to the second claw. When the sliding operation is performed from the engagement position to the disengagement position with respect to, the urging means moves from the lock release position to the lock position to lock the first pawl at the disengagement position, and the second housing to the first housing is moved. When the housings are connected, the lock is pressed by the second claw or the projection on the second housing side. It is obtained by a locking means which is moved to the unlocked position from the position.

[0008]

In the housing attaching / detaching device of the present invention configured as described above, when the second housing is coupled to the first housing, the locking means is biased by the second claw or the projection on the second housing side. It is pushed against the means from the locked position to the unlocked position. Then, the lock of the first claw at the disengaged position is released, and the first claw automatically slides from the disengaged position to the engaged position by the urging means, and the first claw automatically becomes the second claw. Is engaged in
The first housing and the second housing are automatically locked.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a portable video camera for business use will be described below with reference to the drawings.

First, an outline of the attachment / detachment device of the housing will be described with reference to FIGS.

This video camera 1 is provided with a camera accessory housing such as a camera adapter housing or a VTR housing at the rear portion of a first housing 3 which is a camera body housing having an optical lens 2 attached to the front portion. A certain second housing 4 is detachably connected.

A pair of upper and lower wedge-shaped first claws 5 and 6 facing diagonally upward and diagonally downward are attached in parallel to the coupling surface 3a, which is the rear end surface of the first housing 3, The connecting surface 4a, which is the front end surface of the second housing 4, has the first
A pair of second wedge-shaped upper and lower claws 7 and 8 opposite to the claws 5 and 6 are attached in parallel. Then, only the first claws 6 on the lower portion of the first housing 3 are in the up and down directions indicated by arrows a and b.
It is composed of sliding claws that can slide in any direction,
The other first claws 5 and the second claws 7 and 8 are connected to the coupling surface 3a, respectively.
It is configured as a fixed claw fixed to the 4a by a plurality of screws 9 and 10.

Then, one guide pin 12 is attached to the lower center of the upper second claw 7 on the coupling surface 4a side, and the fitting notch 12 of the guide pin 12 is the first upper portion on the coupling surface 3a side. It is formed at the upper center of the claw 5. In addition, a pair of connectors 1 is provided in the central portion on the lower end side of both coupling surfaces 3a, 4a.
4 and 15 are attached, and a pair of guide pins 16 and insertion holes 17 are attached to both left and right side portions on the lower end sides of both coupling surfaces 3a and 4a.

When the second housing 4 is connected to the first housing 3, the guide pin 12 is fitted into the notch 13 so that the upper second claw is provided as shown in FIG. 7 is engaged with the upper first claw 5 from above, and then the second housing 4 is moved to the first position.
While rotating the claw 5 in the direction of arrow c in FIG. 11, insert both guide pins 16 into both insertion holes 17 to connect both connectors 14 and 15 at the same time as shown in FIG. The joint surface 4a of the second casing 4 is joined to the joint surface 3a of the housing 3 in parallel from the direction of arrow c.

Then, as shown in FIG. 12, the lower first claw 6 automatically slides in the downward direction of arrow b by the automatic locking operation described later, and the lower second claw 8 automatically moves. The second housing 4 is automatically locked to the first housing 3 by engaging with.

At this time, as shown in FIG. 9, the operating lever 19 attached to the side surface of the first housing 3 is rotated in the direction of arrow e from the unlocked position P ₁ to the locked position P ₂ to stop the stopper. By locking by 20,
The first claw 6 is strongly pressed in the direction of arrow b in FIG. 12, and the pressing force and the reaction force of the pressing force the pair of upper and lower first claws 5 and 6 toward the pair of upper and lower second claws 7 and 8 from the directions of arrows a and b. Press firmly. Then, due to the wedge action of the pair of first claws 5 and 6 at that time, the second casing 4 is moved toward the first casing 3 by the arrow d.
It is configured to be strongly pulled in the direction so that the second housing 4 is stably and firmly coupled to the first housing 3 without any rattling. The electrical circuits in the first and second housings 3 and 4 are electrically connected by the connectors 14 and 15 connected to each other.

Next, referring to FIGS. 1 to 10, details of the essential parts of the attachment / detachment device for the housing will be described.

First, a guide rail member 22 is vertically embedded in the coupling surface 3a of the first housing 3, and slides between a pair of left and right guide rails 22a formed in the lower half of the guide rail member 22. The plate 23 is slidably fitted in the up and down directions of arrows a and b, and
The lower first claw 6 is integrally formed in a horizontal shape along the lower edge of the. The front and rear surfaces of this slide plate 23 are
A pair of left and right slide plate receivers 22 of the guide rail member 22
It is supported between b and a cover plate 25 fixed to the rear surface of the guide rail member 22 by a plurality of screws 24.

Next, the operating lever 19 is rotatably attached to the first housing 3 via the rotary shaft 27 between the unlocked position P ₁ and the locked position P ₂ in the vertical directions e and f. The operating lever 19 and the slide plate 23 are
And are connected by a link mechanism 28. The link mechanism 28 includes an arm 29 that is rotated integrally with the operation lever 19 via a rotary shaft 27, an arm 31 connected to the tip of the arm 29 via a pin 30, and a tip of the arm 31 via a pin 32. And a pair of pins 35 and 36 that connect the free ends of these links 33 and 34 to the slide plate 23 and the guide rail member 22. ing.

[0020] Then, the rotation of the operating lever 19, and a disengaged position P ₃ in the direction of arrow a relative to the second pawl 8 in which the first pawl 6 via a link mechanism 28 shown in (A) of FIG. 1, in FIG. 1 It is configured to be slidably operated in the up and down directions of arrows a and b between the engagement position P _{4 of} the second claw 8 in the direction of arrow b shown in (B).

Next, as shown in FIG. 3, the first claw 6 is engaged with the second claw 8 via the link 33 and the slide plate 23 by pressing and urging the pin 32 in the direction of arrow g. _A compression coil spring (or a tension coil spring) 38, which is an urging means for urging the member _{4 in the} direction of the arrow b, is attached. Although not shown, the compression coil spring 3
Reference numeral 8 is inserted and held on the outer periphery of a guide shaft rotatably attached to the left end of the arm 31 in FIG.

Next, a pair of left and right lock buttons 40, which are locking means for locking the first pawl 6 at the disengagement position P ₃ , are formed inside the lower ends of the pair of left and right guide rails 22a of the guide rail member 22. It is fitted in the pair of mounting holes 41. Then, these lock buttons 40 are shown in FIG.
And between the lock position P ₅ shown in FIG. 4A for locking the first pawl 6 at the disengagement position P ₃ and the lock release position P ₆ shown in FIGS. 1B and 4B. Is configured to be slidable in the directions of arrows i and j which are directions orthogonal to the directions of arrows a and b. In addition, lock projections 40a that engage with the lower end surface 23a of the slide plate 23 are integrally formed on the end faces of the lock buttons 40 on the arrow i direction side. The compression coil spring 42, which is an urging unit, presses and urges the lock position P _{5 in the} direction of arrow i.

Next, as shown in FIG. 8, the cylindrical stopper 20 is fitted in a horizontal mounting hole 44 formed in the joining surface 3a of the first housing 3, and the stopper 20 is joined. The surface 3a is configured to be retractable in the directions of arrows m and n, which are directions orthogonal to the directions of arrows e and f, which are the rotation directions of the operating lever 19. In addition, this stopper 2
A retaining washer 46 is fitted on the support shaft 45 of 0,
Further, the stopper 20 is biased by the compression coil spring 47, which is a biasing means, so as to project from the coupling surface 3a in the direction of arrow m. A spherical surface 20a is formed at the tip of the stopper 20, and an inclined surface 19b that abuts on the spherical surface 20a is formed at a lower end of a part of one side surface 19a of the operation lever 19 so that the operation lever 19 is formed. Top surface 19
c is formed horizontally.

Next, the details of the main part of the mounting and demounting operation of the housing will be described.

First, when the operating lever 19 is rotationally operated from the lock position P ₂ in FIG. 3 to the unlock position P _{1 in} FIG. 2 in the direction of arrow f, the pair of arms 29, 3 of the link mechanism 28 is operated.
The pin 32 is pushed in the direction of arrow h against the compression coil spring 38 via 1.

Then, the pair of links 33 and 34 are connected to the pin 3
2 is bent in a dogleg shape and the pin 36 is suspended as a reference point, and the pin 35 is pulled up in the direction of the arrow a, so that the first pawl 6 integrated with the slide plate 23 is shown in FIG. , And the detachment position P ₃ shown in FIGS. 2 and 5A is pulled up in the direction of arrow a.

At the moment when the first pawl 6 is pulled up to the detached position P ₃ , the pair of lock buttons 40 are unlocked as shown in FIGS. 1A, 4A and 6. The compression coil spring 42 pushes the lock projections 40a of the lock buttons 40 from the position P ₆ to the lock position P _{5 in the} direction of the arrow i, and the locking projections 40a of the lock buttons 40 project below the lower end surface 23a of the slide plate 23. The integrated first pawl 6 is locked at the disengagement position P ₃ .

In this state, as shown in FIG. 2, the compression repulsive force of the compression coil spring 38 in the direction of arrow g acts on the pin 32 of the link mechanism 28, and the pair bent in a dogleg shape. Since the pin 36 of each of the links 33 and 34 is used as the reference point for pushing down, the pressing force in the direction of the arrow b is accumulated in the pin 35, so that the first claw 6 locked at the disengagement position P ₃ has the arrow b. The urging force in the direction is always accumulated.

Next, as described with reference to FIG. 11, after engaging the second claw 7 on the upper part of the second housing 4 with the first claw 5 on the upper part of the first housing 3 from above, While rotating the housing 4 around the first claw 5 in the direction of arrow c in FIG. 11, the coupling surface 4a of the second housing 4 is coupled to the engagement surface 3a of the first housing 3 in parallel from the direction of arrow c. Perform an action that causes

Then, at this time, as shown in FIG. 1A, FIG. 2, FIG. 5A and FIG.
After entering the lower part of the second claw 8 in the direction of the arrow c, the left and right ends 8a of the second claw 8 come into contact with the locking projections 40a of the pair of lock buttons 40, and the lock buttons 40 are opposed to the compression coil spring 42. And press in the direction of arrow c.

At this time, a pair of projections for unlocking the pair of lock buttons 40 are provided on the coupling surface 4a of the second housing 4, and the projections push the pair of lock buttons 40 in the direction of arrow c. You can

The pair of lock buttons 40 pushed in the direction of arrow c by the left and right ends 8a of the second pawl 8 are, as shown in FIGS. 1B, 4 and 4B. , The locking projection 4 of the lock button 40 is pushed in from the lock position P ₅ to the lock release position P _{6 in the} direction of arrow j.
0a is disengaged from the lower end surface 23a of the slide plate 23 in the arrow j direction.

Then, at that moment, as shown in FIG. 1B, FIG. 3, FIG. 5B and FIG. 7, the lock of the first claw 6 at the disengaged position P ₃ is released, By the pressing biasing force accumulated in the compression coil spring 38 of the link mechanism 28 in the arrow b direction, the first claw 6 is automatically lowered in the arrow b direction from the disengagement position P ₃ to the engagement position P ₄ , and First
The claw 6 is automatically engaged with the second claw 8 in the direction of the arrow b.
At this time, at the moment when the first claw 6 is engaged with the second claw 8,
A clicking sound is generated, and the camera operator can confirm the engagement by this sound.

However, at this time, the pin 32 of the link mechanism 28 does not cross the dead point P ₇ connecting the centers of both the pins 35 and 36 shown in FIG. 3 in the arrow g direction.

Therefore, in order to ensure safety, as shown in FIG. 3, the operating lever 19 is rotated in the direction of arrow e from the unlocked position P ₁ to the locked position P ₂ , and the operating lever 19 is stopped. Lock in locked position by 20.

Then, as shown in FIG. 3, the link mechanism 2
8 through a pair of arms 29 and 30, and the pin 32 has an arrow g.
Pulled in the direction, this pin 32 moves the dead point P ₇ to the arrow g.
The pair of links 33, 34 is overcome in the direction and is inverted from the conventional dogleg-shaped bent state to the inverted dogleg-shaped bent state and becomes stable.

Then, with the pin 36 of the pair of links 33, 34 reversed in the inverted V-shape as the pushing reference point, a strong pushing force acts on the pin 35 in the direction of the arrow b, so that the pin 35 shown in FIG. Also, as shown in FIG. 5B, the first claw 6 is strongly pressed against the second claw 8 in the direction of the arrow b.

As shown in FIG. 8, the operating lever 19
When rotating the lock lever from the unlocked position P ₁ to the locked position P _{2 in the} direction of the arrow e, as shown by the alternate long and short dash line in FIG. 19b contacts the spherical surface 20a at the tip of the stopper 21, and the stopper 20 is automatically pushed in the direction of the arrow n against the compression coil spring 47 by the guiding action of the inclined surface 19b and the spherical surface 20a.

Then, as shown in FIG. 8B, at the moment when the operating lever 19 reaches the lock position P ₂ , the stopper 20 is automatically projected by the compression coil spring 20 in the direction of the arrow m, and the operating lever is moved. The upper end surface 19c of 19 contacts the side surface 20b of the stopper 20 and is automatically locked.

As described above, if the operation lever 19 is safely locked at the lock position P ₂ by the stopper 20, the operation lever 1 can be operated while the video camera 1 is in use.
The operation lever 19 suddenly returns from the lock position P ₂ to the lock release position P ₁ because another object touches 9 inadvertently,
There is no concern that the connected state of the first and second casings 3 and 4 will be inadvertently released, and high safety can be secured.

The first and second casings 3 shown in FIG.
4 is released and the second housing 4 is separated from the first housing 3, the operation lever 19 is moved to the lock position P in FIG.
₂ to the lock release position in FIG. 2 by rotating in the direction of the arrow f to disengage the first pawl 6 from the engagement position P ₄ as shown in FIGS. 1 (A), 2 and 5 (A). Arrow a to position P ₃
Just pull in the direction.

However, at this time, the stopper 20 shown in FIG. 8 (B) is consciously pressed with the fingertip or the like by the compression coil spring 47.
Push in the direction of arrow n against the
Needs to be rotated in the direction of arrow f to the unlock position P ₁ .

The embodiment of the present invention has been described above.
The present invention is not limited to the above embodiments, and various modifications can be made based on the technical idea of the present invention. For example, the present invention is not limited to the attachment / detachment device of the housing of the video camera, but can be applied to the attachment / detachment device of various housings of various electronic devices.

[0044]

The housing attaching / detaching device of the present invention constructed as described above has the following effects.

When the second housing is connected to the first housing, the second housing
The locking means is pushed by the pawl or the like against the biasing means from the locking position to the unlocking position to unlock the first pawl at the disengaged position, and the first pawl is disengaged from the disengaged position by the biasing means. The first claw and the second claw are automatically engaged with each other by automatically sliding to the engagement position, and the first casing and the second casing are automatically locked. Therefore, unlike the prior application, it is possible to automatically and easily connect the second housing to the first housing with one touch without operating the operating lever and the lock mechanism one by one.

Since the automatic lock is applied when the second case is connected to the first case, the operation lever is not forgotten to be locked, and the first claw is engaged with the second claw during the automatic lock. You can feel a sense of security because of the clicking sound of the time.

[Brief description of drawings]

1 is a diagram showing a main part of a device for attaching and detaching a housing according to an embodiment of the present invention, FIG. 1A being a side view taken along the line AA in FIG. 3B is a side view taken along the line BB of FIG.

FIG. 2 is a front view showing a locked state of a first claw at a disengaged position.

FIG. 3 is a front view showing a moving state of a first claw to an engagement position.

4A is a sectional view taken along the line CC of FIG. 2, and FIG. 4B is a sectional view taken along the line DD of FIG.

5A is a sectional view taken along the line EE of FIG. 2, and FIG. 5B is a sectional view taken along the line FF of FIG.

FIG. 6 is a perspective view showing a locked state of the first claw at the disengaged position.

FIG. 7 is a perspective view illustrating unlocking of a first claw at a disengaged position.

8A is a sectional view taken along the line GG in FIG. 2, and FIG. 8B is a sectional view taken along the line HH in FIG.

FIG. 9 is a front view showing the first housing side of the housing attaching / detaching device.

FIG. 10 is an exploded perspective view showing the entire attachment / detachment device of the housing.

FIG. 11 is a partially cutaway side view illustrating the start of the operation of connecting the second housing to the first housing.

FIG. 12 is a partially cutaway side view for explaining the completion of the operation of connecting the second housing to the first housing.

[Explanation of symbols]

 3 1st housing 3a 1st housing coupling surface 4 2nd housing 4a 2nd housing coupling surface 6 1st claw 8 2nd claw 38 Compression coil spring (biasing means of the 1st claw) 40 Lock button ( Locking means) 42 Compression coil spring (locking button urging means)

Claims (1)

[Claims] 1. A slidable first mounted on a first housing.
The first claw and the second claw are provided with an operation lever for slidingly operating the claw and the first claw thereof, and a second claw attached to the second housing to engage and disengage the first claw. In a device for attaching and detaching a second casing to and from the first casing by means of, a means for urging the first claw to move to an engagement position with respect to the second claw, and an operating lever. When the first pawl is slid from the engagement position with respect to the second pawl to the disengagement position, it is moved from the lock release position to the lock position by the biasing means to lock the first pawl in the disengagement position, Lock means that is moved from the lock position to the unlock position by being pressed by the second claw or the protrusion on the second housing side when the second housing is coupled to the first housing. A device for attaching and detaching the housing.