JP5084568B2 - Camera shake prevention device - Google Patents

Description

  An object of the present invention is to provide a camera shake prevention device that produces a large fastening force with a small force and is inexpensive and resistant to vibration.

In the conventional camera shake prevention device, in order to firmly fix the camera mounted on the camera shake prevention device, the connecting bolt with a knob is turned and the fastening force is used. For example, it is shown by the conventional camera shake prevention apparatus described in patent publication 2004-258633. By tightening the connecting bolt 22 with the knob shown in FIG. 1 of the above publication, the camera can be firmly fixed to the camera shake prevention device by the fastening force, and the camera shake prevention device is fixed to a tripod. By interposing the camera shake prevention device, the camera and the tripod can be integrally connected. As a result, even a heavy camera with a super-telephoto lens can be firmly fixed, and when shooting, the camera with a super-telephoto lens can be selected as one unit, such as upward, downward, or sideways. In spite of this, it is possible to prevent blurring within a movable range, and it is possible to accurately photograph a subject without any blurring, and to easily prevent camera shake during telephoto shooting, and to capture beautiful images.
Patent Publication No. 2004-258633

  However, the following problems have occurred in the background art. In order to obtain a strong fastening force by turning the connecting bolt with a knob, it is necessary to have an appropriate arm force. For example, if a weak woman turns the connecting bolt with a knob, a sufficient fastening force cannot be obtained. There was a problem saying that we could not get the expected camera shake prevention.

  In addition, in the configuration of the background art described above, if the connecting bolt with the knob is turned with a very strong force, a force equal to or higher than that is required when releasing it, and in some cases, the problem that it cannot be released occurred at the same time. .

  A main invention according to the present invention is a camera shake prevention device disposed between a camera and a tripod head, the camera is fixed, and the camera can be detachably attached to the tripod head. A base having a side wall provided, a support arm with a long hole having a support seat for supporting a telephoto lens mounted on the camera, and a pivot of the support arm with the long hole, turning a lever, and screwing A lever-attached bolt that presses the support arm with the elongated hole against the side wall, and the lever-attached bolt is disengaged and unlocked when the lever of the lever-attached bolt is pulled up. The lever can be turned to an arbitrary position, and when the lever is returned, it is engaged inside and locked again.

  Further, other features of the present invention will become apparent from the accompanying drawings and the description of the present specification.

  According to the present invention, it is possible to firmly fix the camera to the camera shake prevention device without requiring a large arm force. Also, when releasing, it does not require great arm strength and is very convenient.

  In addition, by firmly fixing the camera to the camera shake prevention device, it is possible to prevent camera shake with high quality, and it is possible to realize more beautiful video shooting.

  Details of the present invention will be specifically described with reference to the drawings. FIG. 1 is a block diagram showing a camera shake prevention apparatus of the present invention. In FIG. 1, the base 1 is made of stainless steel and can be detachably mounted on a tripod head.

  The base 1 has a stepped two-stage structure, and a pan head mounting hole 2A and a pan head mounting hole 2B are provided in the lower stage of the base 1 in order to be fixed to a tripod head. The two are provided in order to cope with a wide variety of head shapes, and the balance between the camera platform and the camera with the telephoto lens in the camera platform mounting hole 2A and the camera platform mounting hole 2B is good. This is because you can select the one you think.

  In addition, the upper stage of the base 1 has a function of a support base for fixing the camera body. A camera mounting hole 3 is provided, and the camera body can be detachably mounted on the base 1 through the camera mounting hole 3 with a bolt 4 with a camera fixing knob. Further, a rubber 5 (rubber) film is attached to the upper stage of the base 1 so that the camera body can be easily fixed to the base 1 when the camera is attached by frictional force.

  Moreover, the base | substrate 1 is equipped with the side wall 6 with a long hole in the side wall of one side. The base 1 is a metal plate-like structure made of stainless steel having a certain thickness, and has a structure in which one stainless steel material is bent, and has an integrated shape. Stainless steel is a material with high rigidity, rust resistance, and excellent durability.

  Moreover, although not shown in figure, the base | substrate 1 and the side wall 6 with an elongate hole are separate metal plates, and may be fixed to one side of the base | substrate 1 with a some volt | bolt. In the embodiment, the base 1 made of stainless steel may be made of another metal or resin having a certain degree of strength.

  Outside the side wall 6 with the long hole, there is an arm 8 with a long hole. There are a clutch plate 9A and a clutch plate 9B so as to sandwich the side wall 6 with the long hole and the arm 8 with the long hole. However, they have a structure in which they are pressed and fixed by nuts 10A and 10B.

  Then, when the bolt 7 with the adjustment clamp lever is loosened, the arm 8 with the long hole can be freely extended and contracted along the rail of the side wall 6 with the long hole.

  The heads of the nut 10A and the nut 10B have hexagonal shapes used for general bolts, and can be fixed by tightening each other. Further, the clutch plate 9A and the clutch plate 9B are movable together with the arm 8 with the elongated hole, so that a circular shape is desirable. A roller-shaped support seat 11 is provided at the tip of the arm 8 with the long hole.

  The roller-shaped support seat 11 is made of hard urethane and is made of a material suitable for fixing the telephoto lens mounted on the camera body. If it is too hard, it will not be able to absorb vibrations when supporting the telephoto lens. Conversely, if it is too soft, it will support a heavy telephoto lens. Because there is.

  At the position where the arm 8 with the long hole is movable and the telephoto lens is to be fixed, the bolt 7 with the adjusting clamp lever is screwed, and this screwing force is sufficiently applied to the side wall 6 with the long hole via the clutch plate 9A and the clutch plate 9B. By transmitting, the arm 8 with the long hole can be pressed against the side wall 6 with the long hole.

  Further, the clutch plate 9B has a connecting pin 12, and when the bolt 7 with an adjusting clamp lever is screwed together, the clutch plate 9B prevents the clutch plate 9B from rotating so that the screwing force can be transmitted more easily. It has become.

  In the camera shake prevention device using Patent Document 1, side walls with long holes are provided on the side walls on both sides of the base 1, whereas in the present invention, the side walls 6 with long holes on the side walls are provided only on one side of the base 1. Is provided. This is because a screwing force can be suitably obtained, so that it can be sufficiently supported by only one side wall. As a result, the number of parts can be reduced and the weight can be further reduced.

  FIG. 2 is a detailed configuration diagram showing the camera shake prevention device of the present invention, which is a detailed configuration diagram in a state where the components are unfolded, and shows components that could not be shown in FIG. The description of the parts described in FIG.

  First, the washer 13 and the washer 14 are shown. The washer 13 is installed between the nut 10A (made of iron) and the clutch plate 9B (made of aluminum). This serves to prevent the hard iron nut 10A from wearing the aluminum clutch plate 9B by tightening it many times. Similarly, the washer 14 functions to prevent the clutch plate 9A from being worn by the bolt 7 with the adjusting clamp lever. Both are parts for improving the durability of the product.

  Next, a pin mounting hole 15 into which the connecting pin 12 is inserted is provided in the clutch plate 9B, and the connecting pin 12 is inserted with the pin mounting hole 15 and partly protrudes, and the protruding part is a side wall with an elongated hole. 6, when the bolt 7 with an adjusting clamp lever is screwed together, the clutch plate 9B is supported by the two shafts of the connecting pin 12 and the bolt 7 with an adjusting clamp lever, thereby rotating the clutch plate 9B. Therefore, it is possible to easily transmit the screwing force with which the bolt 7 with the adjusting clamp lever is screwed.

  If the clutch plate 9B to be tightened is rotated when the bolt 7 with the adjustment clamp lever is screwed, the bolt 7 with the adjustment clamp lever rotates together with the clutch plate 9B immediately before fixing, and the tightening position is the camera. It may be difficult to fix the clutch plate 9B, and it is desirable that the clutch plate 9B does not rotate.

  In addition to when shooting, when the support shaft 16 that supports the roller-shaped support receiving seat 11 at the end of the support arm 8 with the long hole is aligned with the fixing groove 17 and fixed, the roller-shaped support receiving seat 11 is stably provided. It will be in a fixed state and will be in a suitable state in carrying.

  FIG. 3 is a detailed perspective view showing each part in a finished product state from the top. The portion indicated by the diagonal lines is the base 1, and the positional relationship between them can be understood.

  As described above, the clutch plate 9B has a pin mounting hole 15 and a part of the connecting pin 12 protrudes to reach the rail of the side wall 6 with the long hole. Thus, the clutch plate 9B is supported by the two axes of the bolt 7 with the adjustment clamp lever and the connecting pin 12. By being supported by the two shafts, the clutch plate 9B does not rotate when the bolt 7 with the adjustment clamp lever is screwed together. Since the clutch plate 9B to be screwed with the bolt 7 with the adjustment clamp lever does not rotate, it is easy to screw. Thereby, it becomes possible to screw together with comparatively little labor.

  However, the clutch plate 9B can be moved along the long hole of the side wall 4 with the long hole even when the two axes are used, and the support arm 8 with the long hole is used to support a longer telephoto lens. Can be extended far away from the base 1. Accordingly, in order to deal with various tripod heads, the position of the center of rotation of the support arm 8 with the long hole can be changed depending on the position of the long hole of the side wall 6 with the long hole. By hitting the stand, you can avoid the situation that you can not move well.

  4 and 5 are configuration diagrams when the bolt 7 with an adjusting clamp lever is screwed together. It can be understood that the support arm 8 with the long hole is fixed to the side wall 4 with the long hole by turning the bolt 7 with the adjustment clamp lever. The bolt 7 with an adjusting clamp lever can obtain a larger screwing force due to the lever principle as compared with the connecting bolt with a knob shown in FIG. I can do it.

  Accordingly, the support arm 8 with the long hole can be fixed to the side wall 6 with the long hole without requiring a relatively large arm force, and at the same time, the camera with the telephoto lens can be firmly fixed to the camera shake preventing device. Also, when releasing, it does not require great arm strength and is very convenient. By firmly fixing the camera with a telephoto lens to the camera shake prevention device, it is possible to prevent camera shake with high quality, and to realize more beautiful video shooting.

  Here, the bolt 7 with an adjustment clamp lever will be described. FIG. 6 is an enlarged view of the bolt 7 with an adjusting clamp lever. The turning radius R is larger than the radius of the conventional connecting bolt with knob, and can be tightened efficiently with a small force.

  However, there is a problem. If the telephoto lens is simply mounted with a large turning radius R, it will hit the telephoto lens, and the bolt 7 with the adjusting clamp lever cannot be tightened. The bolt 7 with an adjustment clamp lever has structural features as shown in FIGS.

  When tightening, as shown in FIG. 7, when the bolt 7 with an adjusting clamp lever is pulled up in the direction of the arrow, the nuts 18A and 18B with serrations inside the bolt 7 with an adjusting clamp lever are disengaged, and the lock is released. It becomes a release state. FIG. 10 shows the configuration of the nut with serrations. A nut with a serration is a combination of nuts with grooves.

  In the unlocked state, as shown in FIG. 8, the bolt 7 with an adjustment clamp lever can be turned in the direction of the arrow, and the bolt 7 with an adjustment clamp lever can be moved to a position where the telephoto lens does not hit.

  As shown in FIG. 9, when the bolt 7 with the adjustment clamp lever is moved to a position where the telephoto lens does not hit, the hand is released from the bolt 7 with the adjustment clamp lever and is pulled down in the direction of the arrow by the force of the internal spring 19. The nuts 18A and 18B with serrations are engaged with each other, and the locked state is established again. In this state, the bolt 7 with the adjustment clamp lever can be turned to fix the support arm 8 with the long hole to the side wall 4 with the long hole.

  With the series of operations shown in FIGS. 7, 8, and 9, the bolt 7 with an adjusting clamp lever can be tightened at a position where it does not hit the telephoto lens.

  In this embodiment, the bolt 7 with an adjusting clamp lever is used, but the same operation can be performed even with a bolt with a tension lever and a bolt with a torque control lever. FIG. 11 shows a configuration diagram of the tension lever bolt 20. The bolt with tension lever is a push-lock type in which the pawl acts when the lever is pressed, and when it is released, it returns to its original state with the force of the internal spring and can be rotated freely.

  As mentioned above, although embodiment of this invention was described concretely based on the embodiment, it is not limited to this and can be variously changed in the range which does not deviate from the summary.

It is a block diagram which shows the camera shake prevention apparatus which concerns on one Example of this invention. It is a detailed block diagram which shows the camera shake prevention apparatus which concerns on one Example of this invention. It is a detailed block diagram which shows the camera shake prevention apparatus which concerns on one Example of this invention. It is a block diagram which shows the camera shake prevention apparatus which concerns on one Example of this invention. It is a block diagram which shows the camera shake prevention apparatus which concerns on one Example of this invention. It is a figure which shows the volt | bolt with an adjustment clamp lever which concerns on one Example of this invention. It is a figure which shows the structure inside the bolt with an adjustment clamp lever which concerns on one Example of this invention. It is a figure which shows the structure inside the bolt with an adjustment clamp lever which concerns on one Example of this invention. It is a figure which shows the structure inside the bolt with an adjustment clamp lever which concerns on one Example of this invention. It is a figure which shows the nut with a serration concerning one Example of this invention. It is a figure which shows the tension lever which concerns on one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2A Pan head mounting hole 2B Pan head mounting hole 3 Camera mounting hole 4 Camera fixing knob bolt 5 Rubber 6 Long hole side wall 7 Adjust clamp lever bolt 8 Long hole arm 9A Clutch plate 9B Clutch plate 10A Nut 10B Nut 11 Roller bearing seat 12 Connecting pin 13 Washer 14 Washer 15 Pin mounting hole 16 Support shaft 17 Fixing groove 18A Nut with serration 18B Nut with serration 19 Spring 20 Bolt with tension lever

Claims (4)

In the camera shake prevention device placed between the camera and the tripod head,
The camera is fixed and detachably mountable on the tripod head, and is made of metal or resin, and has a side wall on either the left or right side,
A support arm with an elongated hole having a support seat for supporting a telephoto lens mounted on the camera;
A lever-attached bolt that serves as a center of rotation of the support arm with the long hole, turns the lever, and is screwed to press the support arm with the long hole against the side wall;
The bolt with lever has nuts with first and second serrations inside, and when the lever of the bolt with lever is pulled up, the nuts with first and second serrations are disengaged inside to lock The camera shake prevention device according to claim 1 , wherein the lever can be released and the lever can be turned to an arbitrary position, and when the lever is returned, the nuts with the first and second serrations are engaged with each other to be locked again. The lever bolt has a spring therein, said spring when pulling the lever, camera shake prevention apparatus according to claim 1, wherein the attempts to return to the original. The camera shake prevention device according to claim 1,
An apparatus for preventing camera shake, comprising: a first clutch plate and a second clutch plate sandwiching the side wall and the support arm with a long hole. 4. The camera shake prevention device according to claim 3 , wherein the first clutch plate has a pin mounting hole, and the pin mounting hole is provided with a connecting pin.

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