JP2790992B2 - Camera holding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing apparatus holding apparatus in which a photographing apparatus such as a video camera is mounted in an automobile or the like so that an image can be photographed.

[0002]

2. Description of the Related Art In recent years, with the spread of photographing machines such as video cameras, opportunities for using them in a running automobile or the like have increased. However, there has been no suitable means for mounting a photographing machine in a car or the like so far, so that photographing was impossible when no passenger was present, and there were difficulties such as tired arms during photographing.

[0003] Therefore, an apparatus has been developed which can easily photograph a scene outside the vehicle by mounting a photographing machine in an automobile or the like.

[0004] For example, Japanese Patent Application No. Hei.
No. 108315, Japanese Patent Application No. 7-170041, Japanese Patent Application No. 7
191804 and the like. These devices include a hanger suspended from a part of a vibration system such as a vehicle, a ship, and an aircraft, mainly an automobile, and a table for mounting a photographing machine is rotatably and initially provided under the hanger. It is mounted so as to be able to return to the state, and when a centrifugal force acts, the photographing machine is oriented in a predetermined direction so that a realistic image can be taken. In particular, the table is composed of a base and a base provided above the base with a buffer material interposed therebetween, so that transmission vibration to a photographing machine fixed to the base can be reduced.

[0005]

However, according to the holding device of the photographing machine developed so far, as a means for returning the table to the initial state, a metal spring such as a tension spring or a bar spring is mainly used. For example, in the case of automobiles, when the vibration or centrifugal force is unloaded, the table quickly returns to the initial state due to their elasticity, and the reaction causes the table to repeatedly swing, which adversely affects the image was there.

[0006] In view of such a reason, measures have been taken to control the rotation of the table as a countermeasure to be used under bad conditions such as an automobile running on an unpaved road surface. Under large vibrations, the pedestal vibrated irregularly through the cushioning material, so good quality images could not be taken.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a table on which a photographing machine is mounted under a hanger suspended from a part of a vibration system so that a high-quality image can be taken even under bad conditions. A holding device for the camera, wherein the device is rotatably mounted so as to be able to return to the initial state, and a slow-speed means for reducing a speed of returning the table to the initial state is provided. Is what you do.

In a preferred embodiment of the present invention, a part of the hanger and the table is connected with a viscoelastic body to return the table to an initial state.

In particular, the viscoelastic body is made of a shock absorbing rubber, preferably a substantially V-shaped shock absorbing rubber, with both ends fixed to both sides of the center of rotation of the table, and a center fixed to a part of the hanger.

The present invention is also directed to a holding device for a photographing machine provided with a pedestal to which a photographing machine is fixed via a cushioning material on an upper portion of a base so that a high quality image can be taken even under bad conditions. An object of the present invention is to provide a holding device for a photographing machine, characterized by comprising means for restricting a horizontal movement of a pedestal with respect to a base in an arbitrary direction and an orthogonal direction thereof.

Further, the present invention relates to a photographing machine holding device in which a table on which the photographing machine is mounted is attached to a lower part of a hanger suspended from a part of a vibration system so as to be rotatable and returnable to an initial state. The hanger includes a brake for regulating the rotation of the table and a cam for operating the brake, and the brake has a support portion pressed against the table and a protrusion pressed by the cam. The table is fixed in an initial state when the supporting portion is pressed against the table, and a holding device for the photographing machine is provided.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a state in which a photographing machine V is suspended on a passenger seat side in a vehicle. In the figure, R is the roof of the car, S is the sun visor on the passenger seat side, G is the windshield, and the holding device of the photographing machine according to the present application is:
As a part of the vibration system, it is attached to, for example, a sun visor S mounted on a passenger seat side in an automobile.

[0013] As shown, the holding device is a fixture 1.
The hanger 2 is suspended from the sun visor S through the hanger 2, and the photographing machine V is held through the hanger 2. The fixing tool 1 includes a visor plate 11 mounted on the sun visor S and a guide 1 fixed to the visor plate 11.
2 and a slide arm 13 slidably supported in the longitudinal direction by the guide 12. The hanger 2 can be fixed to a desired direction on the lower surface of the slide arm 13.

The visor plate 11 is formed by bending a metal plate or the like into a U-shape so that the visor plate 11 can be detachably attached to the sun visor S from the fulcrum P side of the sun visor S. The visor plate 11 is given an appropriate elasticity, and the elasticity of the visor plate 11
Can be firmly fitted to the sun visor S. In particular, a protector 15 is fixed to the visor plate 11 via an L-shaped arm 14, the upper end of the protector 15 is pressed against the roof R, and the tip of a tentacle 13 a provided at one end of the slide arm 13 is attached to the front glass G. The swing of the sun visor S can be regulated by being pressed against the sun visor S. The guide 12 is fixed to the lower surface of the visor plate 11 with a screw (not shown), and supports the slide arm 13 slidably. The slide arm 13 is ABS
A long plate made of a synthetic resin such as a resin is provided with a suction cup 16 adsorbed on the front glass G on the upper surface on one end side, and the other end side is slidably supported by a guide 12.

On the other hand, the hanger 2 is fixed to a lower surface of the slide arm 13 with a fixing screw 31 at an upper end thereof, and is hung in a vehicle. A table 5 is provided below the hanger 2 so that the photographing machine V can be mounted on the table 5.

Next, FIG. 2 shows a state where the present apparatus is disassembled. As shown in this figure, the hanger 2 has a fixing screw 3
1 and an auxiliary arm 4 connected to the base arm 3 so as to face the base arm 3. Especially,
The base arm 3 and the auxiliary arm 4 are substantially L-shaped so that the camera V mounted on the table 5 can be accommodated between them when they are connected.

The table 5 is attached to the lower part of the hanger 2 so as to be rotatable and returnable to an initial state. For example, the table 5 is turned when a centrifugal force is applied during running of the automobile to orient the photographing machine V in the traveling direction. Then, when the centrifugal force stops acting, it returns to the initial state. In particular, the table 5 includes a base 6 attached to the hanger 2 and a pedestal 7 to which the photographing machine V is fixed.

A bracket 61 is integrally provided on the base 6 at one end opposite to the photographing direction of the photographing machine V, and a weight 62 is suspended from the bracket 61 so as to be swingable. The rotation direction of the table 5 when a force is applied is specified. The hanger 2 is provided with a braking device 32 at its lower part for restricting the rotation of the table 5, and is used for photographing an unpaved road surface in a running automobile.
The table 5 is fixed at a position such that an adverse effect due to vibration can be prevented.

On the other hand, a step 71 is formed on the upper surface of the pedestal 7, and a slide plate 72 conforming to the step 71 can be fixed with an adjusting screw 73. The slide plate 72
Is fixed to the lower surface of the photographing machine V with a screw 72a screwed into a screw hole for a tripod provided in the photographing machine V, and is fixed at an appropriate position on the step portion 71 with an adjusting screw 73.
At this time, the photographing machine V is fixed to the base 7.

In FIG. 2, reference numeral 8 denotes a base arm 3
Is a support arm provided on the inside. The support arm 8 has connecting portions 81 and 82 at both upper and lower ends, and the connecting portion 81 on the upper side is cylindrical and has a head 31a of the fixing screw 31.
The connection pin 82 protruding from the base 7 is slidably fitted, and the lower connection portion 82 is firmly fitted into a connection groove 74 provided on a side edge of the base 7. For this reason, when vibrations propagate to the table 5 and a cushioning material described later deforms,
Can prevent the pitching swinging in the direction A and the rolling swinging in the direction B. In addition, when the table 5 is not fixed, the support arm 8 can rotate about the connection pin 33, so that the table 5 can also rotate. The automatic alignment function of V can be used.

Next, FIG. 3 shows a state where the table 5 is disassembled. As shown in this figure, a main shaft 63 having a screw formed at a tip thereof protrudes from a central portion of the base 6.
, A center block 64 is rotatably mounted. The center block 64 has the same shape as the U-shaped notch 34 formed at the lower part of the base arm 3.
A guide groove 34a formed on the peripheral surface of the notch 34
Is formed. A bearing 64b is buried at one end and a screw hole 64c is formed at the other end. Then, the main shaft 63 fitted into the bearing 64b
The center block 64 is rotatably mounted by tightening a nut 65 to the end of the base arm 6, and the base block 6 is rotatably mounted below the base arm 3 by fitting the center block 64 and the notch 34.

Here, the screw shaft portion 67a of the stopper 67 is screwed into the screw hole 64c via the stopper 66, and the stopper 66 is fixed to the center block 64 by the stopper 67. The locking metal member 66 has an elastic arm portion 66a, and a lower portion of the base arm 3 inserted between the arm portions 66a can be clamped by a locking portion 66b in which a part of the arm portion 66a is raised inward. It is. In addition, the stopper 67
Has a tubular portion 67b, into which the connecting pin 41 (see FIG. 2) of the auxiliary arm 4 is press-fitted.

On the other hand, a notch 75 for receiving the base arm 3 is formed on the side of the pedestal 7 so as to face the notch 75.
Further, guide grooves 76 are formed on both sides of the step portion 71 so that both ends of the slide plate 72 are fitted.

Next, FIGS. 4 and 5 show a vertical section and a horizontal section of the table 5, respectively. As shown in FIG. 4, a pedestal 7 is provided above the base 6 with a cushioning material F interposed therebetween, and the pedestal 7 is supported by the cushioning material F. The cushioning material F is a cylindrical vibration-proof rubber, and a rubber string r connecting the base 6 and the pedestal 7 is passed through the inside thereof.

As means for restricting the horizontal movement of the pedestal 7 with respect to the base 6 to any one direction and the direction perpendicular thereto, for example, as shown in FIGS. An opening 68 is formed on both sides in the longitudinal direction, and a concave engaging portion 69 is formed on the inner wall surface in connection with the opening 68, while a bracket 78 for supporting a crankshaft 77 is integrally protruded from the back surface of the pedestal 7. The both ends of the crankshaft 77 are locked to the locking portions 69. In particular, the crankshaft 77 is supported so as to be slidable in the axial direction and swingable about the axis, and both ends bent downward are pivotally supported by the locking portions 69 through the openings 68 of the base 6. I have. Therefore, when the vibration is propagated to the pedestal 7 through the cushioning material F, the pedestal 7 does not perform an operation of rotating in the horizontal direction, but directly moves along the axis of the crankshaft 77, or linearly moves in the orthogonal direction thereof. Therefore, the aiming deviation of the photographing device fixed to the pedestal 7 can be reduced as much as possible.

Here, it is preferable that the crankshafts 77 be provided at two opposing positions as shown in the figure. For example, one crankshaft 77 is provided slidably and swingably along the longitudinal direction of the pedestal 7. The two ends may be locked to the base 6. If the locking portion 69 is not formed as a concave groove but is formed as a hole into which both ends of the crankshaft 77 are slidably fitted, rolling and pitching of the pedestal 7 can be prevented at the same time.

FIG. 6 is a plan view of the base 6. FIG.
In the above, 9 is a shock absorbing rubber as a viscoelastic body,
In the present application, the hanger 2 and a part of the table 5 are connected by the shock absorbing rubber 9 so as to return the table 5 to an initial state. In particular, the shock absorbing rubber 9 is formed in a substantially V-shaped plate shape, both ends of which are fixed to both sides of the rotation center (main shaft 63) of the base 6, and the central portion is directed to the base arm 3 side to the braking tool 32. It is fixed. Therefore, the braking device 32 is moved to the table 5
When the table 5 is pressed against the table 5, the table 5 is fixed. When the braking tool 32 is separated from the table 5 and the table 5 is in a non-fixed state, the shock-absorbing rubber 9 expands and acts to return the table 5 to the initial state. Note that the braking device 3
When the table 2 is pressed against the table 5, the shock absorbing rubber 9
Is in an unloaded state to maintain its original shape and to prevent permanent set.

Here, when the table 5 is in the initial state and a centrifugal force or vibration acts, the table 5 rotates, but after the external force is unloaded, the shock absorbing rubber 9 becomes elastically elastic due to its viscoelasticity. It will show the effect and restore it,
The table 5 gradually returns to the initial state.
For this reason, it is possible to prevent the image from being blurred by the photographing machine, and to obtain an image having a smooth motion.

As a slowing means for relaxing the returning speed of the table 5, the hanger 2 and the table 5 are connected with a viscoelastic body such as a shock absorbing rubber 9 or the like. There is a method in which the table 5 is urged in the direction of the initial state by being connected with an elastic body such as a bar spring, and a part of the hanger 2 and the table 5 are brought into contact with each other via a viscous substance such as grease. There is a method of connecting the hanger 2 and a part of the table 5 with a device in which a dashpot and a spring having a predetermined elastic modulus are connected in parallel like a model. Here, an example of the former is shown in FIG. Reference numeral 91 denotes an arc groove provided around the rotation center of the base 6, 92 denotes a ridge provided on the lower surface of the base arm 3 corresponding to the arc groove, and 93 denotes a viscosity injected between the arc groove 91 and the ridge 92. At this time, the base arm 3 and the base 6 are, for example,
Connect with.

Here, if the above-described slow speed means is adopted, the rotation speed of the table 5 when returning to the table is conventionally a peripheral speed of several tens of meters per second, but this is reduced to about several cm on average. it can.

Next, FIG. 8 is an enlarged perspective view of the braking device 32. The braking device 32 includes a support portion 32b formed by bending one end of a concave main body portion 32a at a right angle to the lower side, and a protrusion formed by bending a part of the other end side of the main body portion 32a to the lower side. A portion 32c. Further, a long hole 32d and a protruding piece 32e facing upward are formed in the main body part 32a so that the central part of the shock absorbing rubber 9 can be locked to the protruding piece 32e.

Next, FIG. 9 shows a mounting state of the braking device 32. As shown in this figure, a guide groove 35 is formed on the lower surface of the base arm 3, and the braking tool 32 is slidable along the guide groove 35 by fitting both sides of the main body 32a into the guide groove 35. Attached to. The fixing screw 3 is inserted into the elongated hole 32d of the main body portion 32a through a cam 36 for operating the braking device 32.
7, and the fixing screw 37 is screwed into the base arm 3. Then, the fixing screw 37 is tightened to fix the brake tool 32 and the cam 36 at a required position, and the brake tool 32 and the cam 36 can operate when the fixing screw 37 is loosened. Note that a rivet or the like can be used as a method of attaching the braking tool 32 and the cam 36 to the base arm 3.

FIG. 10 is a plan view showing the mounting state of the braking device 32. FIG. The cam 36 is an eccentric cam slidably attached to the lower portion of the base arm 3 with a fixing screw 37, and a holding portion 36a is integrally protruded from a part thereof. In particular, when the cam 36 swings, its peripheral surface has a supporting portion 32b and a protruding portion 32c.
When the support portion 32b is pressurized, the brake 32 moves forward in the direction of the table 5, and when the protrusion 32c is pressurized, it retracts. The support part 32b of the braking tool 32 is
The table 5 can be fixed to the hanger 2 by pressing the cam 36 until it comes into pressure contact with the side edge of the table 5.
Further, when the cam 36 is swung in the reverse direction in this state, the protrusion 32c is pressed at the periphery thereof, and the braking tool 32 retreats.
The table 5 becomes rotatable. At this time, if the fixing screw 37 is tightened, the brake 32 is fixed, so that the non-contact state between the brake 32 and the table 5 can be maintained. Note that an arc-shaped groove may be formed in a part of the cam 36, and the protrusion 32c of the braking tool 32 may be positioned in the groove.

[0034]

According to the present invention, since the table is slowly returned after the removal of the external force such as vibration or centrifugal force by providing the slow-speed means for relaxing the speed of returning the table to the initial state, the photographing operation is performed. The motion of the machine is smooth and high quality images can be obtained.

Particularly, since the table is returned to the initial state by connecting the hanger and a part of the table with a viscoelastic material such as shock absorbing rubber having viscoelasticity, the table can be rotated smoothly. Moreover, the structure can be simplified and economical.

Further, by providing means for restricting the horizontal movement of the pedestal with respect to the base in any one direction and the direction perpendicular thereto, even if large vibrations or shocks propagate to the pedestal through the cushioning material, Since the camera moves directly without rotating, the aiming of the camera fixed to the pedestal does not shift significantly, and the directionality is stable and a high-quality image without image blur can be taken.

Further, since the table can be fixed to the hanger by providing a brake at the lower part of the hanger so as to restrict the rotation of the table, the table is used when the vehicle is used on an unpaved road surface in an automobile. To prevent the adverse effects of vibration, and when used in a car traveling on a highway, the table can be unfixed to orient the camera in the direction of travel. In addition, since it has a cam that operates the brake, the table is fixed,
The operability at the time of non-fixing is good, and the braking device can operate smoothly even when a part of the shock absorbing rubber is fixed to the braking device.

[Brief description of the drawings]

FIG. 1 is a side view showing a state where a photographing machine is suspended in an automobile.

FIG. 2 is an exploded perspective view showing a holding device of the photographing machine according to the present invention.

FIG. 3 is a perspective view showing a state where a table is disassembled.

FIG. 4 is a longitudinal sectional view of a table.

FIG. 5 is a cross-sectional view of a table.

FIG. 6 is a plan view of a base.

FIG. 7 is a sectional view of a main part showing another embodiment of the present invention.

FIG. 8 is an enlarged perspective view of a braking device.

FIG. 9 is a cross-sectional view showing a mounting state of a braking device.

FIG. 10 is a plan view showing a mounting state of a braking device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixing tool 2 Hanger 3 Base arm 32 Braking tool 36 Cam 4 Auxiliary arm 5 Table 6 Base 68 Opening 69 Locking part 7 Pedestal 77 Crank shaft 78 Bracket 8 Support arm 9 Shock absorbing rubber 91 Arc groove 92 Ridge 93 Viscous material 94 elastic tool V camera F cushioning material

Claims (6)

(57) [Claims] 1. A holding device for a photographing machine in which a table on which a photographing machine is mounted is rotatably and returnably returned to an initial state under a hanger suspended from a part of a vibration system. What is claimed is: 1. A holding device for a photographing machine, comprising: a slow speed means for relaxing a speed of returning to an initial state. 2. A holding device for a photographing machine, wherein a table on which the photographing machine is mounted is attached to a lower part of a hanger suspended from a part of a vibration system so as to be rotatable and returnable to an initial state. A holding device for a photographing machine, wherein a part of the table is connected with a viscoelastic body to return the table to an initial state. 3. The holding device for a photographing machine according to claim 2, wherein the viscoelastic body is a shock absorbing rubber. 4. The viscoelastic body according to claim 2, wherein both ends are fixed to both sides of a center of rotation of the table as a substantially V-shaped shock absorbing rubber, and a center part is fixed to a part of a hanger. The described holding device of the photographing machine. 5. A holding device for a photographing machine provided with a pedestal to which the photographing machine is fixed via a cushioning material on an upper portion of the base, wherein the horizontal movement of the pedestal with respect to the base is performed in any one direction,
A holding device for a photographing machine, comprising: means for restricting the camera in the orthogonal direction. 6. A holding device for a photographing machine in which a table on which the photographing machine is mounted is attached to a lower part of a hanger suspended from a part of a vibration system so as to be rotatable and returnable to an initial state.
The hanger includes a brake that regulates the rotation of the table and a cam that operates the brake. The brake has a support that is pressed against the table and a protrusion that is pressed by the cam. Wherein the table is fixed in an initial state when the supporting portion is pressed against the table.