JP2003270704A - Camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply and easily assembly a camera by diversifying a camera assembling procedure. <P>SOLUTION: Notched parts 121 and 131 are provided on a lower surface on a rear side corresponding to a spool chamber 12 and a cartridge chamber 13 in a camera main body 10, and the spool 24 and the 2nd rewind gear 31 of a winding unit 23 are attached to the main body 10 through the notched parts 121 and 131, so that the unit 23 is assembled from the rear side in the optical axis direction of the main body 10. Thus, an expected purpose is attained. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera structure having a form winding unit.

[0002]

2. Description of the Related Art Generally, in a camera, a winding unit for winding a film is provided for a camera body provided with an aperture for exposing a film to photographing light as disclosed in Japanese Utility Model Publication No. 4-35873. It is assembled from below, which is substantially orthogonal to the optical axis. And
In this camera body, the lens barrel, AF finder unit, and strobe unit, which are other camera components,
It is assembled from the front side in the optical axis direction.

However, in the above camera, when the hoisting unit, the lens barrel, and the AF finder unit, which are the camera constituent parts, are assembled to the camera body, they must be assembled from different directions depending on the parts. Therefore, since the work has to be performed while rotating the camera body, the assembly procedure is restricted, and the assembly work of the parts is troublesome.

[0004]

As described above, the conventional camera has a disadvantage that the assembling work of the camera components to the camera body is troublesome.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a camera in which the assembling procedure is diversified, and the camera assembling work can be realized easily and easily.

[0006]

According to the present invention, a camera is provided with a camera body and a winding unit for winding a film, which is assembled to the camera body from the rear of the camera body.

According to the above construction, the winding unit is attached to the camera body from the rear side in the optical axis direction, so that the other lens components such as the lens barrel and the AF finder unit can be assembled. It is possible to simultaneously perform the assembling to the camera body without changing the direction of the camera body. Therefore, the winding unit can be easily assembled to the camera body, and the assembling procedure can be diversified to realize a quick and easy camera assembling work.

Further, according to the present invention, a camera body, a front cover which covers at least the front of the camera body, and in which the camera body is assembled inside from the optical axis direction, and the camera body is assembled in the front cover. After that, the camera is configured to include a winding unit that can be assembled to the camera body from the rear of the camera body.

According to the above construction, the winding unit is attached to the camera body from the rear side in the optical axis direction, so that the other lens components such as the lens barrel and the AF finder unit can be assembled. It is possible to simultaneously perform the assembling to the camera body without changing the direction of the camera body, and to continue the assembling work with the front cover. Therefore, the winding unit can be easily assembled to the camera body, and the assembling procedure can be diversified to realize a quick and easy camera assembling work.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows an exploded perspective view of a camera according to an embodiment of the present invention.
An aperture 11 for exposing the film to light, which is not shown, is provided substantially at the center of the film. The camera body 10 is provided with a spool chamber 12 on one end side of the aperture 11, and a cartridge chamber 1 on the other end side of the aperture 11.
3 is provided.

These spool chamber 12 and cartridge chamber 1
3 is open on the rear side in the optical axis direction, and concave cutouts 121 and 131 are provided on the rear side in the optical axis direction on the respective lower surfaces. The upper surface of the spool chamber 12 has a tongue-like shape that is displaceably coupled in the camera vertical direction, that is, in the axial direction of the spool 24, which will be described later, via, for example, an elastically deformable bearing spring portion 141. The spool bearing 142 is integrally provided. The spool bearing 142 is provided with a spool shaft hole 143.

In the camera body 10, a plurality of mounting holes 101 for mounting a lens frame are provided around the aperture 11 at predetermined intervals. A lens frame unit 15 as an image pickup lens having an optical axis O is assembled in front of the camera body 10 in the optical axis direction. The lens frame unit 15 is provided with a plurality of mounting holes 151 corresponding to the mounting holes 101 of the camera body 10, and the mounting holes 151 are provided.
The lens frame unit 15 is screwed to the camera body 10 by using the screw 16 in a state where the lens frame unit 15 is fitted in the mounting hole 101.

Then, the camera body 10 to which the lens frame 15 is attached is first assembled with the front cover 17 which constitutes an exterior body on the front side in the optical axis direction. This front cover 17
The mounting holes 171 are provided at the four corners of the interior of the housing, and the release button 19 is provided on the outer peripheral wall thereof.

An AF finder unit 20 and a strobe unit 21 are mounted in the front cover 17 by using screws 22 so as to face an AF finder window and a strobe window (not shown) provided in front of the front cover 17.

A lens insertion hole 172 is provided in the front of the front cover 17, and the lens insertion hole 17 is formed in the front cover 17.
The lens portion 152 of the lens frame 15 assembled to the camera body 10 is inserted from the rear side with respect to 2.

The rear cover 18 cooperates with the front cover 17 in a state where a winding unit 23, which will be described later, is assembled to the lower surface of the camera body 10 from the rear side in the optical axis direction. Camera body 10 with 23 assembled
Is mounted on the rear side of the optical axis direction of the camera body 10 so as to sandwich.

A rear cover 181 is rotatably provided on the rear cover 18 so as to be openable and closable, and mounting holes 182 are provided at four corners corresponding to the mounting hole portions 171 of the front cover 17.
At the closed position of the rear lid 181, the lock mechanism is unlocked in association with the operation of an operation unit (not shown) so that the film can be replaced so that the aperture 11 and the spool chamber 12 can be exchanged.
When the cartridge chamber 13 is opened (see FIG. 2) and closed from its open position, it is locked by the lock mechanism at the closed position.

As shown in FIG. 3, a locking portion 183 is provided on the inner wall of the rear cover 18 so as to face the tip of the spool bearing 142 of the spool chamber 12 of the camera body 10. The locking portion 183 locks a part of the upper surface of the spool bearing 142 in a state where the locking portion 183 is attached to the rear side of the camera body 10 and prevents the spool bearing 142 from being lifted, which will be described later.

Further, an eyepiece window 184 is attached to the front cover 17 at a predetermined position of the rear cover 18.
It is provided so as to expose the eyepiece of the F finder unit 20.

Now, the winding unit 23 which is assembled from the rear side in the optical axis direction to the lower surface of the camera body 10 to which the front cover 18 is attached will be described. That is, in the winding unit 23, the winding motor 232 is mounted on the base 231 via the mounting plate 233. The winding motor 232 is inserted in the spool 24 (see FIG. 3).

At the upper end of the spool 24, there is a spool shaft portion 2 which is a small diameter portion smaller than the outer diameter dimension of the spool 24.
41 is provided, and the spool shaft portion 241 is rotatably supported by fitting into the spool shaft hole 143 of the spool bearing 142 of the camera body 10. And the spool 24
A spool gear 25 is integrally provided at the lower end of the.

The pinion 26 is fitted on the rotary shaft 234 of the hoisting motor 232, and the pinion 26 shown in FIG.
As shown in (1), the sun gear 28 constituting the feeding system gear mechanism is meshed via the idle gear 27. A planetary gear 29 is meshed with the sun gear 28 via a planetary arm (not shown), and the planetary gear 29 is rotated clockwise to move to the X1 position in conjunction with the clockwise rotation of the sun gear 28. The planetary gear 29 is meshed with the idle gear 29a meshing with the spool gear 25 to enable film winding.

When the sun gear 28 is driven to rotate in the counterclockwise direction, the planetary gear 29 is rotated in the counterclockwise direction to move to the X2 position, and the planetary gear 29 is moved to the first rewind gear. The film can be wound by engaging with 30 (see FIG. 4).

A second rewind gear 31 is meshed with the first rewind gear 30. The second rewind gear 31 has an engaging portion 311 (fork member) engaged with a film winding portion of a film cartridge not shown.
Is provided, and the engaging portion is engaged with the film winding portion (not shown) of the film cartridge, and the film winding portion (not shown) is rotationally driven in conjunction with the rotation drive thereof. Rewind the film.

The idle gear 27 and the sun gear 2 are
8, the idle gear 29a, and the first and second rewind gears 30 and 31 are rotatably arranged on the base 231.

A plurality of, for example, two mounting hole portions 235 are formed in the base 231 as a hole having a central axis parallel to the optical axis O on the rear side of the camera body 10 as a unit mounting hole 102. Is provided opposite to. Further, on the base 231, the cover portion 236 has the cutout portions 121, 1 of the spool chamber 12 and the cartridge chamber 13 of the camera body 10.
It is provided so as to close the opening side of 31.

With the above structure, the winding unit 23 is
When assembled to the camera body 10, first, the base 231
The upper spool 24 and the engaging portion 311 of the second rewind gear 31 are made to face the notch portions 121 and 131 of the camera body 10 assembled to the front cover 17, and the base 231 thereof is exposed from the rear side. By pushing in the axial direction, the engagement portion 3 of the spool 24 and the second rewind gear 31 is pushed.
11 is accommodated in the spool chamber 12 and the cartridge chamber 13.

At this time, the spool 24 on the base 231 is
When the spool shaft portion 241 is pushed in from the tip end portion of the spool bearing 142 of the camera body 10 against the elastic force of the bearing spring portion 141, the tip end portion of the spool bearing 142 is pressed, so that the bearing spring portion 141 is It is elastically deformed, the spool bearing 142 is displaced upward, and enters the spool chamber 12. When the spool 24 enters the predetermined position, the spool bearing 142 is displaced downward due to the elastic force of the bearing spring portion 141.
The spool shaft portion 241 of the spool 24 is rotatably fitted in the spool shaft hole 143.

The cover portion 236 of the base 231 is
Spool chamber 12 and cartridge chamber 13 of camera body 10
The notches 121 and 131 are closed. In this state, the hoisting unit 23 has the mounting hole portion 235 of the base 231 thereof.
Is aligned with the mounting hole 102 of the camera body 10, and the screw 32 is screwed into the mounting hole portion 235 and the mounting hole 102 in parallel with the optical axis O, whereby the assembling to the camera body 10 is completed. .

Next, the front cover 17 and the winding unit 2
The rear cover 18 is attached to the rear side of the camera body 10 to which 3 is attached. Here, the rear cover 18
The mounting hole 182 is the mounting hole portion 17 of the front cover 17.
1, the screw 33 is inserted into the mounting hole 182 in parallel with the optical axis O, and the screw 33 is screwed into the mounting hole portion 171 of the front cover 17 to be integrated with the front cover 17. Be united in.

Further, the rear cover 18 combined with the front cover 17 has the engaging portion 183 engaged with a part of the upper surface of the spool bearing 142 of the camera body 10, and the engaging portion 183 winds up. The spool shaft portion 241 of the spool 24 of the unit 23 has the spool shaft hole 14 of the spool bearing 142.
It is prevented that the spool 24 is disengaged, and the spool 24 can be stably rotated.

In this way, the camera body 10 includes the lens frame 15, the front cover 17, the AF finder unit 20,
The strobe unit 21, the winding unit 23, and the rear cover 18 are all assembled in order from one direction of the optical axis direction.

As described above, the camera is the camera body 1
Nos. 121 and 131 are provided on the lower surface on the rear side corresponding to the spool chamber 12 and the cartridge chamber 13 of No. 0, and the winding unit 23 is passed through the notches 121 and 131.
The spool 24 and the second rewind gear 31 are attached to the camera body 10, and the winding unit 23
Is assembled from the rear side of the camera body 10 in the optical axis direction.

According to this, when the hoisting unit 23 is attached to the camera body 10, since it is attached to the camera body 10 from the rear side in the optical axis direction, the lens frame which is another camera component. When assembling the camera body 15 and the front cover 17 to the camera body 10, the camera body 1
It is possible to perform them simultaneously without changing the direction of 0.

As a result, the hoisting unit 23 can be easily assembled to the camera body 10, and the assembling procedure can be diversified to realize a quick and easy camera assembling work.

The present invention is not limited to the above-described embodiment, but in addition, the spool bearing 142 provided in the spool chamber 12 of the camera body 10 is tilted downward, for example, from the rear side to the front side at the tip. The guide slanted portion may be provided. According to this, when the winding unit 23 is assembled to the camera body 10, the spool shaft portion 241 of the spool 24 of the winding unit 23 is guided by the guide inclined portion and fitted into the spool shaft hole 143 of the spool bearing 142. As a result, it is possible to further improve the assembly workability.

In the above embodiment, the camera body 1
AF finder unit 2 after assembling the lens frame 15 to 0
0 and the front cover 17 to which the strobe unit 21 is attached are assembled, and then the winding unit 23 and the rear cover 18 are assembled. However, the present invention is not limited to this, for example, with respect to the camera body 10. It is also possible to assemble the winding unit 23 from the rear side in the optical axis direction and then assemble the front cover 17 and the rear cover 18 in the order of assembling.

Further, in the above embodiment, the winding unit 23 is applied to the structure in which the winding motor 232 is mounted, but the present invention is not limited to this and can be applied to various winding unit structures. .

Therefore, the present invention is not limited to the above-described embodiment, and in addition, various modifications can be carried out at the stage of implementation without departing from the scope of the invention. Further, the embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiment, the problem described in the section of the problem to be solved by the invention can be solved, and the effect described in the effect of the invention can be obtained. When the above is obtained, the configuration in which this constituent element is deleted can be extracted as the invention.

On the basis of the above-described embodiment, (1) a camera body having an aperture for exposing photographing light on a film, and a camera body is attached to the camera body from the rear side to the front side in the optical axis direction. It is possible to provide a camera including a winding unit for winding a film.

(2) A camera body having an aperture for exposing shooting light on a film, an exterior body that covers at least the camera body and is assembled inside from the optical axis direction, and the camera body. It is possible to provide a camera including a winding unit that can be assembled to the camera body from the rear of the camera body after being assembled to the front cover of the exterior body.

(3) The hoisting unit described in (1) and (2) above can provide a camera having a hoisting motor.

[0045]

As described in detail above, according to the present invention, it is possible to provide a camera in which the assembling procedure is diversified, and the camera assembling work can be realized easily and easily.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an assembling configuration of a camera according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the rear cover is opened and viewed from the rear side in the assembled state of FIG.

FIG. 3 is a sectional view showing a section AA of FIG.

FIG. 4 is a plan view showing an arrangement configuration of a feeding system gear mechanism of the winding unit of FIG.

[Explanation of symbols]

10… Camera body 101 ... Mounting hole 102 ... Unit mounting hole 11 ... Aperture 12 ... spool room 121 ... Notch 13 ... Patrone room 131 ... Notch 141 ... Bearing spring part 142… Spool bearing 143 ... Spool shaft hole 15… Mirror frame 151 ... Mounting hole 152 ... Lens part 16 ... screw 17… Front cover 171 ... Mounting hole 172 ... Lens insertion hole 18… Rear cover 181 ... Rear lid 182 ... Mounting hole 183 ... Locking part 19 ... Release button 20 ... AF finder unit 21 ... Strobe unit 22 ... screw 23… Winding unit 231 ... Base 232 ... Winding motor 234 ... Rotation axis 24 ... Spool 241 ... Spool shaft 25… Spool gear 26 ... Pinion 27 ... Idle gear 28 ... sun gear 29 ... Planetary gear 29a ... Idle gear 30 ... First Rewind Gear 31… Second rewind gear 311 ... Engaging portion 32, 33 ... Screw

Claims (3)

[Claims] 1. A camera comprising: a camera body; and a winding unit for winding a film, which is assembled to the camera body from the rear of the camera body. 2. A camera main body, a front cover which covers at least the front of the camera main body, and in which the camera main body is assembled inside from the optical axis direction, and after the camera main body is assembled to the front cover, A camera comprising: a winding unit that can be assembled to the camera body from the rear of the camera body. 3. The camera according to claim 1, wherein the hoisting unit has a hoisting motor.