JPH0522283U - Camera mounting device for motorcycles - Google Patents

Abstract

(57) [Abstract] [Purpose] When a moving image capturing device such as a video camera is mounted on a motorcycle, the camera can be fixed securely and securely, and the motion of the image due to vibration is reduced to a stable and good condition. An object of the present invention is to provide a camera mounting device for a motorcycle from which a captured image can be obtained. [Structure] A base fixed to the center of the handle of the motorcycle, a platform, a joint for connecting the platform and the platform to support the platform coaxially with respect to the handle shaft, and a cloud. A camera mounting device for a motorcycle, which comprises means for fixing rotation of a platform. [Effect] Even when vibration in the rotation direction is generated in the handle due to vibration from the road surface, the camera itself is stably held without rotational vibration, and there is little shaking of the screen, and a good captured image can be obtained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a motorcycle camera mounting device for safely and securely mounting a video image capturing device such as a video camera on a motorcycle by a simple means and recording stable and favorable images even while driving.

[0002]

[Prior Art]

 Conventionally, when a camera is mounted on a motorcycle to take a picture, a method of fixing the camera to a part of the body of the pilot, such as a helmet of the pilot with tape, is often used. This method is extremely simple, but the fixation of the camera tends to be unstable.

Further, when a camera is directly attached to a part of the body of a motorcycle to take a picture, for example, an adapter with a clip as shown in FIG. 5 is known. This clip-equipped adapter is not necessarily a dedicated device for mounting a camera on a motorcycle but a general-purpose device for fixing the camera to an appropriate structure. The head 26 is provided on the upper portion of the column 26. Then, when the camera is mounted on a motorcycle with this adapter with a clip and the user wants to take a picture, the camera is fixed to the platform section 27, and an appropriate structural member 23 such as a handle of the motorcycle is sandwiched between paper scissor clips. Will be done.

[0004]

[Problems to be solved by the device]

 In the above-mentioned method of fixing the camera to the helmet of the pilot, the shooting angle changes depending on the posture of the pilot, and the recorded image tends to be unstable. In addition, since the camera is fixed to a part of the body of the operator, the movement of the operator is often restricted, which is a safety issue.

Further, in the case of using the above-mentioned adapter with a clip, it is convenient that the camera can be mounted relatively easily anywhere where it can be held by the paper scissors-like clip, When the structural members that rotate together are sandwiched between the paper scissors-like clips and attached, the paper scissors-like clip and the pan head have an integrated structure, so the operator can operate the steering wheel or the road surface. The rotating vibration of the handle caused by the vibration also causes the camera to rotate, which causes unstable vibration on the shooting screen, which is not preferable. In addition, since it is basically a single point sandwiched by paper scissors-like clips, there is a problem in strength against vibration and wind pressure.

Generally, when a camera is mounted on a motorcycle, it is necessary to sufficiently consider the vibration from the road surface, the vibration of the engine, the influence of wind pressure, and the like. In consideration of these effects, the requirement that the camera should be securely and securely fixed so that it will not fall off due to these vibrations and wind pressures, and that the captured images should be stable and stable. It needs to be done to meet both of these requirements.

Further, apart from the case where the rear scene of the operator is photographed, the vicinity of the handle is preferable as the installation location of the camera in the forward direction, the left and right sides, or when trying to photograph the operator himself. Is. This is because it is easy to obtain a clue for safely and securely mounting this type of mounting device without any additional work on the motorcycle itself, and it is also a convenient place for the operator to operate the camera.

From the above viewpoints, the inventors of the present invention attach cameras to various parts in the vicinity of the steering wheel to paved roads, unpaved roads, high-speed traveling states, low-speed traveling states, high-speed engine rotating states, low-speed traveling states. As a result of conducting experiments under various conditions such as the rotating state, it was found that, in many cases, the effect of vibration was the smallest and good when mounted near the center of the handle.

However, even in this case, when the steering wheel is swung in a rotating direction during traveling on a rough road or when traveling in which the steering wheel operation is required in small increments, a camera mounted near the center of the steering wheel is used. It also turned out to rotate unintentionally with the steering wheel, causing left-right swaying on the captured screen and making it unsightly.

This means that when shooting in a state in which the distance to the subject is sufficiently larger than the focal length of the shooting optical system of the camera (for example, the shooting distance is several tens of meters with respect to the focal length of several millimeters), It is understood that the degree of shaking of the shooting screen due to vibration depends almost on the angular variation of the optical axis of the shooting optical system with respect to the object, and is almost unrelated to the shaking that shifts the entire camera in parallel. ..

The present invention has been made to solve the above problems, and when a camera is mounted on a motorcycle for shooting, a camera is installed in the vicinity of the center of the steering wheel under many conditions. The vibration from the road surface and the vibration from the engine are less affected on the screen sway, and there is no unsightly sway on the shooting screen due to vibration in the steering wheel rotation direction. An object is to provide a camera mounting device for a motorcycle that can be fixed.

[0012]

[Means for Solving the Problems]

 The invention of the present application is to provide a camera mounting device for a motorcycle described in the following (1) and (2) as means for achieving the above object.

(1) A base portion that is detachably fixed to a rotary shaft of a steering device that changes the direction of the front wheels to change the course, or a portion near the rotary shaft that rotates integrally with the rotary shaft. , A platform to which the camera is attached, a fixing means for fixing the platform to the chassis of the motorcycle or a part of the chassis so as not to be rotatable, and the base and the platform at least. A camera mounting device for a motorcycle, comprising a joint that rotatably and coaxially supports the rotation shaft.

(2) The motorcycle camera mounting device according to claim 1, wherein the joint is a spherical joint.

[0015]

[Action]

 Since the invention of the present application is configured by the above means, the following actions are performed alone or in cooperation.

That is, the base portion 2 is a rotation shaft (hereinafter, referred to as a handle shaft) of a steering device (hereinafter, referred to as a handle) that changes the direction of the front wheels to change the course, or the vicinity of the rotation shaft. By being detachably fixed to the part that rotates integrally with the rotating shaft, this device does not have to be always attached to the motorcycle, and can be attached or removed as needed. Become. The base portion 2 of the present device, which is a device for mounting the camera, is located at or near the handle shaft that the inventors of the present application have learned through experiments, as described in the section “Problems to be solved by the device”. The base 2 itself is less likely to be affected by vibrations from the engine and the road surface because it is fixed to a portion that rotates together with the handle shaft, and therefore is mounted on this via the platform part 3. The camera is also kept stable.

Further, the platform part 3 is fixed to the chassis of the motorcycle or a part integrated with the chassis at least non-rotatably by the fixing means 5 and 6, and the base part 2 and the platform part 3 are connected by the joint 4 at least. By being rotatably supported coaxially on the handle shaft, when the handle is rotated, the base 2 is rotated integrally with the handle, but the platform part 3 is rotatable by the joint 4 coaxially with the handle shaft. At the same time as being supported, it is fixed to the chassis so that it cannot rotate, so it is retained without rotating. As a result, the camera mounted on the camera mounting base 7 of the platform unit 3 also becomes independent from the rotation of the handle.

Further, when the joint 4 is a spherical joint, it is possible to set the relative angle between the base portion 2 and the platform portion 3 over a certain range of rotatable vertical angles of the spherical joint. As a result, the camera direction can be adjusted without separately providing an adjustment mechanism for adjusting the camera direction.

[0019]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a schematic perspective view showing one embodiment of a camera mounting device 1 for a motorcycle, which is roughly composed of a base portion 2, a platform portion 3, a joint 4, a pair of fixed arms 5, and a suction cup 6. Be done. The platform part 3 includes a substantially cylindrical columnar portion 11, a spherical portion 14 provided at the lower end of the columnar portion 11, a mounting member 12 for the fixed arm 5 provided at the middle stage, and a camera mounting provided at the upper end. Each is constituted by the table 7. Further, the camera mounting table 7 can be adjusted in angle with respect to the columnar portion 11 via the spherical joint 13, and can be fixed at an appropriate angle by the lock lever 10. Here, the camera is fixed by the camera mounting table 7 having the screw shaft 8 of the spherical joint 13 inserted therethrough.

The fixed arm 5 is composed of a flexible pipe or the like having a certain rigidity, the suction cup 6 is attached to one end, and the other end is attached to the shaft portion 12 a on the attachment member 12, respectively. There is. This is because it is possible to relatively freely select the portion to which the suction cup 6 is to be adsorbed by appropriately bending the flexible tube.

FIG. 2 is a partial cross-sectional view of the base portion 2, showing a state in which the spherical portion 14 of the platform portion 3 is housed in the upper portion thereof. A spherical surface 17 having the same radius of curvature as that of the spherical portion 14 is provided on the inner upper surface of the base portion 2. The spherical portion 14 is sandwiched between this spherical surface 17 and a holding plate 15 screwed from below. A spherical joint 4 is formed, and the base portion 2 and the platform portion 3 are rotatable relative to each other. Since the spherical joint 13 has the same structure, the description thereof will be omitted. Further, a convex portion such as a nut on the upper end of the handle shaft of the motorcycle, which will be described later, is fitted into the concave portion 16 below the holding plate 15 and fixed by the lock lever 9.

FIG. 3 is an explanatory view showing a state where the above-described motorcycle camera mounting device 1 is mounted on a motorcycle, in which a convex portion such as a nut (not shown) at the upper end of the handle shaft is provided with a concave portion of the base portion 2. The base portion 2 is integrally fixed to the handle shaft 21 by being locked by the lock lever 9 while being fitted in 16. On the other hand, the suction cups 6 provided at the ends of the pair of fixed arms 5 are fixed by adsorbing them at appropriate positions in a gasoline tank 23 which is integrated with the chassis of the motorcycle. In this state, the camera 21 is fixed on the camera mounting table 7 with screws 8 and set to a desired photographing angle by the spherical joint 13, and then fixed with the lock lever 10.

FIG. 4 is an explanatory view of another embodiment in which the base portion 2 shown in FIG. 1 is clamped and attached to a pipe-shaped handlebar. When compared with the embodiment shown in FIG. 1 or FIG. 3, only the structure of the base 2 is different, and the other parts are the same, and therefore, the same reference numerals are given to these and description thereof is omitted.

In the present embodiment, the base portion 18 is composed of a pair of arm portions 19 integrated with the spherical joint 4 and a pair of clamp portions 20 provided at the front ends thereof, and the clamp portions 20 are pipe-shaped handlebars 23. It is attached by clamping. At this time, the spherical center of the spherical joint 4 is configured to coincide with the axial center of the handle shaft 22. That is, since the central portion of the handlebar 23 to be clamped is disposed slightly offset from the handle shaft 22 in the front direction, the spherical center of the spherical joint 4 shifts rearward by an amount corresponding to this offset amount, and substantially. The shape of the arm portion 19 is determined so that the spherical center of the spherical joint 4 and the shaft center of the handle shaft 22 coincide with each other. The spherical center of the spherical joint 4 and the axial center of the handle shaft 22 are aligned in the left-right direction by appropriately adjusting the clamp position of the clamp portion 20 with respect to the handle bar 23.

Further, in the above description, the case where the spherical joint 4 and the pair of arm portions 19 are integrally formed has been described, but these are separately configured and the spherical joint 4 is formed on the surface of the arm portion 19. May be movable in a plane. With such a configuration, the camera can be attached by the present device even to a motorcycle of a vehicle type in which the handle bar 23 and the handle shaft 22 have different offset amounts.

[0027]

[Effect of the device]

 As described above, according to the camera mounting device for a motorcycle of claim 1, the base portion is located at or near the rotary shaft of the steering device for changing the course by changing the direction of the front wheels, and in the vicinity of the rotary shaft. Since it is detachably fixed to the part that rotates integrally, this device does not have to be always attached to the motorcycle, and can be attached or removed as needed, which is convenient.

Further, in many cases, the vibration transmitted from the road surface or the engine is smaller than that of other parts, so that the mounting state of the device itself on the motorcycle becomes stable and the device is safe from falling and dropping. At the same time, the camera mounted via this device is also kept stable.

Further, the platform part is fixed to the chassis of the motorcycle or a part integrated with the chassis by a fixing means so as not to be rotatable at least, and the base part and the platform part are coaxial with each other by a joint. Since it is rotatably supported, even if the base changes in the direction of rotation due to vibrations from the road surface or steering operation by the operator, the platform remains independent of these changes. Therefore, the camera mounted on the platform also leans in a certain direction with respect to the chassis of the motorcycle without swinging to the left or right, and a stable and good captured image can be obtained without causing unsightly shaking on the screen. ..

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a motorcycle camera mounting device of the present invention.

FIG. 2 is a partial cross-sectional view of FIG.

3 is an explanatory view showing a state in which a camera is attached to a motorcycle by the motorcycle camera attachment device of FIG. 1. FIG.

FIG. 4 is an explanatory view showing a state in which a motorcycle camera attachment device according to another embodiment is attached to a motorcycle.

FIG. 5 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

 1 Motorcycle Camera Mounting Device 2 Base Part 3 Platform Part 4 Spherical Joint 5 Fixed Arm 6 Sucker 7 Camera Mounting Table 8 Screw 9 Lock Lever 10 Lock Lever 11 Columnar Part 12 Mounting Member 13 Spherical Joint 14 Spherical Part 15 Holding Plate 16 Recess 17 Sphere 18 Base 19 Arm 20 Clamp 21 Camera 22 Handle Axis 23 Handlebar 24 Gasoline Tank 25 Clip 26 Strut 27 Head Platform

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[Procedure amendment]

[Submission date] September 10, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 5]

[Figure 3]

[Figure 4]

Claims (2)

[Scope of utility model registration request] Claims: 1. A camera comprising: a rotary shaft of a steering device which changes the direction of front wheels to change its course; or a base which is detachably fixed to a rotary shaft or a portion near the rotary shaft and which rotates integrally with the rotary shaft; And a fixing means for fixing the platform part to the chassis of the motorcycle or a part integrated with the chassis in a non-rotatable manner, and the base part and the platform part to at least the rotary shaft. A camera mounting device for a motorcycle, which comprises a joint that rotatably and coaxially supports the motorcycle. 2. The camera mounting device for a motorcycle according to claim 1, wherein the joint is a spherical joint.