JPH0138398Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a camera fixing device for fixing, for example, a hand-held video camera.

[Summary of the idea]

The present invention provides a device for fixing a camera, the bottom of which is provided with first and second engaged parts.
The first and second engaged parts engage with the first and second engaged parts.
The engaging portions are provided at acute angles with respect to the base and inclined in opposite directions, and during the engaging operation, the lock plate constituting the second engaging portion is attached to the second cover on the camera side. By configuring the engagement portion to forcibly move in the release direction and engage,
This allows for strong locking with just one touch.

[Conventional technology]

Since a hand-held video camera is used by being placed on the operator's (cameraman's) shoulder, the bottom of the camera is recessed in the center, as shown in FIG. Therefore, when using this camera 1 fixed to a tripod 2, for example, it is not possible to directly attach the camera 1 to the tripod 2, so in such a case, an adapter type camera fixing device 10 is usually used. Ru.

Therefore, the bottom of the camera 1 is provided with first and second engaged parts 3A and 3B at two locations, front and rear. The first engaged portion 3A is a wedge-shaped engagement protrusion, that is, a trapezoidal engagement protrusion whose front side slopes downwardly toward the front, and the second engaged portion 3B is provided on the rear side of the camera 1. This is an engagement recess.

As shown in FIGS. 2 and 3, the base 8 of the fixing device 10 attached to the tripod 2 is provided with a first engaging portion 4A at the front end corresponding to the first engaged portion 3A. At the same time, a second engaging portion 4B is provided at the rear end corresponding to the second engaged portion 3B. The first engaging portion 4A is formed in a wedge shape with a surface inclined at an acute angle with respect to the base 8 so as to correspond to the front inclined surface of the first engaged portion 3A. As shown in the figure, the engaging portion 4B has an engaging pin 5, an operating lever 6 for advancing and retracting the engaging pin 5, and a locking lever 7 for a safety device that locks this lever 6, and a locking pin 9 on the base 8 side. will be provided. 2A is a pan head of the tripod 2, and the fixing device 10 is fixed to the tripod 2 by a screw 2B provided thereon.

To lock the camera 1 to the device 10, operate the lever 6 in the direction of the arrow a in FIG. . Without the lock lever 7, the lever 6 itself would not be locked at all, so when a body hits this lever 6, the lever 6 would move and there is a risk that the camera 1 would fall off the tripod 2.

[The problem that the idea aims to solve]

As described above, in the conventional fixing device 10, the camera 1 is locked on the base 8 after confirming that the lever 6 has been returned to its original position as shown in FIG. Therefore, one-touch locking is not possible and locking operations are troublesome. Furthermore, if you forget to put on the safety device, there is a risk that the expensive camera 1 may fall off or be damaged. Also, as is clear from the figure, the fixing device 1
0. In particular, since the structure of the second engaging portion 4B is complicated, there are drawbacks such as high cost.

The present invention was developed in view of these points, and allows the camera to be firmly locked with a one-touch operation.
It is an object of the present invention to provide a camera locking device that has a simple configuration and can be manufactured at low cost.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention provides a structure for fixing the camera 1 in which first and second engaged parts 3A and 3B are provided at the bottom, as shown in FIGS. 4 to 8, for example. In the fixing device, a first engaging portion 4A with which the first engaged portion 3A engages is formed at one end of the base 8 and has a first inclination direction at an acute angle with respect to the base 8. A second engaging portion 4B is formed at the other end of the base 8 and is engaged with the second engaged portion 3B. A lock plate 14 is mounted at an acute angle with an inclination direction opposite to the first inclination direction and is biased by springs 20A and 20B. It is composed of levers 16A and 16B that are moved in the release direction, and in the engaged state, the slope of the abutment surface of the first engaged part 3A and the first engaged part 4A becomes the second engaged part 3B. and the direction opposite to the inclination of the contact surface of the lock plate 14, and the tip of the lock plate 14 is brought into contact with the tip of the second engaged portion 3B during the engagement operation. It is arranged like this.

[Effect]

In the camera fixing device of the present invention, first, the tip of the second engaged part 3B is attached to the lock plate 14 while the first engaged part 3A and the first engaging part 4A are engaged. Make contact with the tip, and in this state, attach camera 1.
By pressing downward and biasing the lock plate 14, the lock plate 14 is moved in the release direction against the force of the spring. When the camera 1 is further urged downward, the lock plate 14 returns to its original position by the force of the spring, whereby the second engaged portion 3B and the lock plate 14 become engaged.
That is, the camera 1 is fixed to the base 8.

In addition, when removing the camera 1 from this fixed state, use the levers 16A and 16B to release the lock plate 14.
By moving the camera 1 in the releasing direction against the force of the spring, the engagement state between the second engaged portion 3B and the lock plate 14 is released, that is, the camera 1 is removed from the base 8.

In the device of the present invention, the second engaging portion 4B has a simple structure mainly consisting of one lock plate 14, and therefore can be manufactured at low cost.

〔Example〕

Next, the fourth section describes the use of the fixing device according to this invention as an adapter for a tripod.
This will be explained with reference to the figures below.

FIG. 4 shows an example of the usage state of the fixing device 10 according to this invention.

In this example, the second engaged portion 3B provided at the rear end of the bottom of the camera 1 is different from the first engaged portion 3A.
It is formed by a wedge-shaped engagement protrusion symmetrical to the above, that is, a trapezoid-shaped engagement protrusion whose rear surface side slopes downwardly toward the rear.

On the other hand, a second engaging portion 4 provided at the rear end of the base 8
B is movable, that is, the second engaging portion 4B is attached using the slope of the rear end of the base 8, and as shown in the figure, the second engaging portion 4B is formed on a part of the slope. A rectangular parallelepiped-shaped presser plate 12 is provided so as to close the stepped portion 11.
is attached, and this step 11 and presser plate 1
A lock plate 14 configured to be movable forward and backward with respect to the base 8 is housed in the recess 13 formed by the base 8.

This lock plate 14 has an inclined direction opposite to the inclined surface of the first engaging portion 4A at an acute angle with respect to the base 8 so as to correspond to the rear inclined surface of the second engaged portion 3B. The second engaged portion 3B is attached with a lock plate 14, and is arranged so that the tip corner of the second engaged portion 3B corresponds to and comes into contact with the tip surface of the lock plate 14 during an engagement operation to be described later. .

The lock plate 14 is made of a rectangular parallelepiped flat plate as shown in FIG.
As shown in the figure, wedge-shaped protrusions 15A and 15B projecting outward are formed in each part of the recess 13, and a pair of levers is provided in the recess 13 so that a part of the protrusions 15A and 15B come into contact with the slopes of these protrusions 15A and 15B. 16A,1
6B is provided. Lock lever 16A, 16B
is shaped like a letter as shown in the figure, and its abdomen 17a,
17b abuts against the slopes of the protrusions 15A, 15B, and these lock levers 16A,
Each operating portion 18a, 18b of 16B is configured to protrude to the outside of the recess 13.

These levers 16A, 16B are configured to be rotatable about a fulcrum 19. A spring is interposed between the recess 13 and the lock plate 14 so that the lock plate 14 is always biased outward. In this example 2
coil springs 20A, 20B are arranged, and the biasing force of these coil springs 20A, 20B is always applied to the lock plate 14 in the right angle direction.
A pair of recesses 21A and 21B are formed in the lock plate 14, and one ends of the pair of coil springs 20A and 20B are respectively locked in the recesses 21A and 21B (see FIG. 7).

FIG. 5 shows a bottom view of the fixing device 10.
A slit 30 is formed in the center in the longitudinal direction, and a threaded part 3 that can freely slide is inserted into the slit 30.
1 is provided. This threaded part 31 has a tripod 2.
The screw 2B attached to the pan head 2A is screwed together.

In FIG. 5, the side plate 25 is for positioning the camera body 1 with respect to the fixing device 10. With this, the camera body 1 is fixed to the fixing device 10.
It will be locked in a correctly positioned position.

In this configuration, the lock plate 14 is always biased upward, and since the levers 16A and 16B are provided close to the lock plate 14, the amount of protrusion of the tip of the lock plate 14 from the recess 13 is always constant. is kept constant.

To explain the fixing operation of the camera in this example device configured as described above, first, the first
engaging the engaged portion 3A with the first engaging portion 4A,
Subsequently, the second engaged portion 3B is engaged with the second engaging portion 4B. In the engagement operation between the second engaged portion 3B and the second engaging portion 4B, as shown in FIG. The lock plate 14 comes into contact with the tip end of the plate 14 (A in the same figure), and by pressing the camera 1 downward and urging it in this state, the lock plate 14 is pressed against the coil spring 2.
It is moved downward, that is, in the release direction, against the forces of 0A and 20B (B in the same figure). Then, when the camera 1 is further pressed downward and the second engaged portion 3B is in contact with the upper surface of the base 8, the tip corner of the second engaged portion 3B is connected to the tip surface of the lock plate 14. As a result, the lock plate 14 naturally returns to its original position due to the force of the coil springs 20A and 20B, and as a result, the second engaged portion 3B and the lock plate 14 become engaged, that is, the camera 1 is locked to the base 8 (C in the same figure).

In this state, the engagement contact between the second engaged portion 3B and the lock plate 14 is different from the slope of the engagement contact surface between the first engaged portion 3A and the first engaging portion 4A. Since the inclination of the contact surface has an inclination in the opposite direction, it is possible to provide a strong lock that will not easily come off even if the camera 1 is subjected to a load in the vertical direction.

Also, from this locked state, the pair of levers 16
When A, 16B is pressed downward, the abdomen 17a, 1
Since the pair of protrusions 15A and 15B are pressed inward at 7b, the lock plate 14 is moved downward. Therefore, until the tip of the second engaged portion 3B no longer engages with the lock plate 14, the lock plate 1
The lock is released by moving 4.

Therefore, according to the configuration of the device of this embodiment described above, the camera body 1 can be firmly locked to the fixing device 10 by simply pressing the camera body 1 downward, that is, by one touch. In addition, the camera body 1 is fixed to the fixing device 1.
When removing from 0, use a pair of levers 16A, 16
You only need to operate B once at a time. Even if only one lever is operated, the lock plate 14 will not be moved downward, so the lock cannot be released at this time. This prevents accidents such as the camera body 1 falling off from the fixing device 10 because the lock will not be released even if one of the levers is inadvertently hit by the body or the other lever is operated. can do.

Furthermore, in the device of this example, the second engaging portion 4B
is an extremely simple locking mechanism consisting mainly of one lock plate 14, coil springs 20A, 20B as its biasing members, and levers 16A, 16B as release members, so it has a small number of parts and is easy to assemble. Therefore, the manufacturing cost can be kept low and it can be provided at low cost.

By the way, in the above-mentioned embodiment, this idea was applied to tripod 2.
Although the present invention has been applied to a fixing device for mounting a camera on a desk, it is also necessary to use some means to fix the camera on a desk. At times like this, on a part of the desk,
It is convenient to provide the fixing device 10 according to this invention. Therefore, a flat plate on a desk can also be used as the base 8.

[Effect of idea]

As explained above, according to the device of the present invention, it is possible to firmly lock the camera body to the fixing device with a single touch, and since the lock cannot be easily released unless there is an intention to release the lock, it is possible to securely lock the camera body to the fixing device. , it is possible to improve the operability during removal and to increase safety. Moreover, the device of the present invention does not require a particularly complicated locking mechanism and can be easily constructed with a small number of parts, so it can be manufactured at low cost and has various effects.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional fixing device, Fig. 2 is a side view of the conventional fixing device in the locked state, Fig. 3 is a plan view of the non-locked state, and Fig. 4 is a diagram of the fixing device according to this invention. A side view showing an example, FIG. 5 is a bottom view, FIG. 6 is a configuration diagram of the second engaging part, FIG. 7 is a vertical cross-sectional view, and FIGS. 8 A to C are explanatory diagrams of the locked state. be. In the figure, 1 is a camera, 3A is a first engaged part, 3
B is the second engaged part, 4A is the first engaging part, 4B
1 is a second engagement portion, 8 is a base, 14 is a lock plate, 1
6A and 16B are levers, and 20A and 20B are coil springs.

Claims (1)

[Claims for Utility Model Registration] A fixing device for fixing a camera in which first and second engaged parts are provided at the bottom, wherein one end of the base is provided with the first engaged part. A first engaging portion that engages is formed with a first inclination direction at an acute angle with respect to the base, and the second engaged portion engages with the other end of the base. A second engaging portion is formed, and the second engaging portion is attached to the base at an acute angle with an inclination direction opposite to the first inclination direction, and is attached by a spring. It is composed of a biased lock plate and a lever that moves the lock plate in the releasing direction against the biasing force of the spring, and in the engaged state, the first engaged part and the first engaged part are connected. The inclination of the abutment surface of the mating portion is in the opposite direction to the inclination of the abutment surface of the second engaged portion and the lock plate, and the lock plate has a tip thereof at the time of the engagement operation. The camera is arranged such that the tip of the second engaged portion is in contact with the tip of the lock plate, and the camera is held in a state where the tip of the second engaged portion is in contact with the tip of the lock plate. By urging the lock plate downward, the lock plate is moved in the releasing direction against the force of the spring, and when the lock plate is returned by the force of the spring, the second engaged portion is moved. and a camera fixing device in which the lock plate is engaged.