JP3123251B2 - Camera with tripod screw - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera mounting structure for a tripod screw used for mounting a tripod to a camera.

[0002]

2. Description of the Related Art Conventionally, in order to attach a tripod to a camera, a female screw on which a male screw for fixing a tripod is screwed is provided at the bottom of the camera. On the other hand, in recent years, cameras have tended to be downsized. In this trend, if a female screw for a tripod is provided in the camera, the mounting position of the female screw in the camera is restricted as follows. It does not hinder shooting or is restricted. Maintain the overall intensity required to stabilize the camera. Compatible with tripod screw mounting standards. In order to satisfy the above restrictions, in many cases, standardized female screws are provided on the bottom surface of the camera. The female screw needs to be provided at a place avoiding the rewind gear train or the like, but it is difficult to arrange the female screw because of its standardized size. Then, in order to solve this inconvenience, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 63-96544. This is a gear in which a driving force transmission gear meshing with a film rewind gear is formed in a ring shape, and a female screw for attaching a tripod is attached to the camera body coaxially with the driving force transmission gear. It is.

[0003]

By the way, the camera is
It is demanded to eliminate unnecessary space inside and make it smaller, or to provide more mechanisms more compactly by using the useless space. However, according to Japanese Unexamined Utility Model Publication No. 63-96544, an internal thread cannot be installed without a gear having a diameter greater than a certain value.
Further, when the gear train is arranged forward or rearward of the camera, the female screw is also biased forward or backward, so that there is a problem that the balance when attached to a tripod is deteriorated. The present invention solves the above problems,
Even if the female screw for the tripod is arranged on the camera, no special place or special structure is required for the arrangement of the female screw, the arrangement of other members in the camera is not affected, and With a tripod screw that does not hinder the height
It is intended to provide a camera that performs the following.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, an invention according to claim 1 is a camera having a female screw into which a male screw for fixing a tripod is screwed, and a camera mounted on the camera. > Make sure that at least one
In the member formed so that the part enters, the above internal thread is
It is formed so as to enter. The invention according to claim 2 has a female screw into which a male screw for fixing a tripod is screwed.
Camera, and the film patrol loaded in the camera
And a take-up shaft that engages with the film
Is formed so that the slot enters the inside of the winding shaft
Things. The invention according to claim 3 is a camera having a female screw into which a male screw for fixing a tripod is screwed, wherein a concave formed in a winding shaft of a film cartridge loaded in the camera .
Space formed by the camera or camera
Inside the space formed by the part entering
The female screw is formed.

[0005]

According to the above construction, the female screw for the tripod can be attached by utilizing the space of the winding shaft portion of the film cartridge, without affecting the arrangement of other members used in the camera. The height of the female screw does not affect the height of the camera. Further, since the winding shaft of the film cartridge is generally arranged near the center in the front-rear direction of the camera, the balance when attached to a tripod does not deteriorate.

[0006]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a camera with a tripod screw attached. The camera body 2 of the camera 1 includes a lens barrel 3 located substantially at the center of the camera body 2 and facing the front, a patrone room 4 located on the left side of the lens barrel 3 in the figure, and a right side in the figure. Spool chamber 5 provided. The film F is wound up from the film cartridge P loaded in the cartridge chamber 4 to the spool chamber 5. Further, a lens 6 is provided on the inner diameter of the lens barrel 3, and an AF unit 7 for distance measurement and a finder 8 disposed on the right side of the AF unit 7 are disposed above the lens barrel 3. A battery 9 is arranged below the lens barrel 3. A rewind key 10 for rewinding the film is formed at the bottom of the patrone P. The rewind key formed integrally with the rewind fork 11 on the camera body 2 so as to engage with the rewind key 10. A fork gear 12 is arranged.

In this embodiment, the rewind fork gear 12
A female screw 13 for attaching a tripod is mounted in a position facing the outer wall at the bottom of the camera body 2 within the axis of the camera body 2. The hatched portion in the figure indicates the outer shape of the female screw 13, and the region within the hatched portion indicates a portion to which a male screw (not shown) of a tripod is screwed. The female screw 13 is attached as follows. A metal substrate 2a used for fixing the female screw 13 is fixed to the camera body 2 by screwing or the like. On the other hand, on the outer periphery near the opening of
3a are formed. This recess 13a is inserted into the metal substrate 2a.
Secure by fixing.

In the spool shaft 14 of the spool chamber 5, a light emitting capacitor 16 of a flash 15 disposed at a position facing the front above the spool chamber 5,
6, a drive motor 17 for winding and rewinding the film F is disposed. Further, a rewinding fork gear 1 from a drive motor 17 is provided at a lower portion of the camera body 2.
2, a film drive gear train 18 is arranged.

In the camera 1 having the above-described structure, the AF unit 7 measures the distance, and moves the lens of the lens barrel 3 to focus on the basis of the distance measurement. Then, when the user releases the shutter, an image is exposed on the film F. Thereafter, the film F is wound up. When the entire film F is exposed and wound up in the spool chamber 5, it is rewound into the patrone chamber 4. Since all of these operations are performed by a known technique, a detailed description thereof will be omitted.

Normally, the rewind key 10 is formed at a position depressed from the bottom of the cartridge P. For this reason, the rewinding fork gear 1 formed integrally with the rewinding fork 11
2 needs the corresponding height to engage with the rewind key 10. The tripod screw mounting structure of the camera of the present invention,
By utilizing this height, a female screw 13 is attached to the bottom of the camera body 2 inside the rewinding fork gear 12. For this reason, the tall female screw 13 does not hinder the reduction in the height of the camera. Furthermore, since there is no need to consider the arrangement of the female screw 13 while avoiding other members, a limited space in the camera can be effectively used. Further, even with a small camera, the female screw 13 can be provided without affecting the arrangement of other members used in the camera. further,
In addition, since the female screw 13 is attached to the center of the patrone 4 instead of the end of the camera 1 in the front-rear direction, the stability of the camera in the front-rear direction when the tripod is attached is increased.

The present invention is not limited to the above embodiment, but can be variously modified. For example, the mounting position of the female screw 13 does not necessarily have to be coaxial with the patrone P. It may be structured to be attached to the camera body 2 so that a female screw is arranged inside. Further, a part of the head of the female screw 13 may enter the recess of the patrone P. Further, although not shown, even if the rewinding fork gear 12 has a structure in which the film is rewound using the rewinding key in the head Ph of the cartridge P, the head Ph of the cartridge P is usually used.
Since a concave portion is also formed in the camera body 2, the same effect as described above can be obtained by attaching the female screw 13 to the camera body 2 so as to be located in the concave portion.

Further, according to the standard, the wall of the female screw 13 and the cylindrical portion of the fork gear 12 are thin. Therefore, if the female screw 13 is strongly tightened at the time of attaching the tripod, the female screw 13 may expand in the radial direction, and may act as a drum brake on the fork gear 12. Therefore, it is desirable to provide a certain gap between the outer diameter of the female screw 13 and the inner diameter of the fork gear 12.

[0013]

As described above, according to the present invention, a female screw for a tripod is attached to a position facing the outer wall at the bottom of the camera in the vicinity of the winding axis of the film patrone. A tripod mounting screw can be provided without affecting the arrangement of other members used, and a tall female screw does not become a restriction in reducing the height of the camera, and the camera is not restricted. It can contribute to miniaturization. Further, since the female screw is located near the center of the patrone, not at the end of the camera in the forward direction, the stability of the camera when the tripod is attached is improved.

[Brief description of the drawings]

FIG. 1 is a schematic view of a camera with a tripod screw according to an embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 camera 2 camera body 4 patrone room 11 rewinding fork 12 rewinding fork gear 13 female screw

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G03B 17/02 G03B 17/56

Claims (3)

(57) [Claims] 1. A camera having a female screw to which a male screw for fixing a tripod is screwed , wherein at least a part of the camera is inserted into a film winding shaft of a film cartridge loaded in the camera.
The female screw is inserted into the member that is formed
A camera characterized in that the camera is formed as follows. 2. A female screw to which a male screw for fixing a tripod is screwed.
Comprising a film loaded in the camera.
It has a take-up shaft that engages with the film
The female screw is formed so as to enter the inside of the winding shaft.
Camera, characterized in that is. 3. A camera having a female screw into which a male screw for fixing a tripod is screwed, wherein the camera is formed by a depression formed in a reel of a film cartridge loaded in the camera.
Space or a part of the camera
The internal thread is formed inside the space formed by
Camera, characterized in that it is.