JP2003156788A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach two holding members capable of holding a camera in a state where the optical path of a super wide angle lens is not intercepted by a photographer's fingertip tightly to the camera in the case of concurrently manufacturing several kinds of cameras by using parts and manufacturing facilities in common as much as possible. SOLUTION: In this camera equipped with a 1st cover with which a camera main body equipped with various photographic mechanisms is covered from either side and a 2nd cover with which the camera main body is covered from the other opposite side, a part of the 1st cover is covered with the 1st holding member for holding the camera from either side, and the 1st holding member is positioned and fixed on the 1st cover or in the camera main body. Then, a part of the 2nd cover is covered with the 2nd holding member for holding the camera from the other opposite side, and the 2nd holding member is positioned and fixed on the 1st holding member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera in which two holding members for holding the camera are mounted from opposite directions.

[0002]

2. Description of the Related Art A film unit with a lens will be described as an example of a camera. As for the film unit with a lens, products having various specifications are sold depending on the market demand. Among them, there are products with general specifications and products with special specifications. Naturally, products with general specifications have a large sales volume, and products with special specifications have a small sales volume.

For example, although the number of sold film-equipped film units in which a standard lens having a focal length of about 30 mm is built in with 135 films is very large, a lens having an ultra wide-angle lens having a focal length of 20 mm or less is attached. The number of units with attached film units is very small. For this reason, the lens-equipped film unit equipped with the ultra-wide-angle lens is preferably as common as the lens-equipped film unit equipped with the standard lens except for the taking lens and its peripheral members. This allows
The design period can be shortened and parts and manufacturing equipment can be standardized, so the cost can be kept low.

[0004]

As described above, when the film units with lenses having different focal lengths are made as common as possible and an ultra wide-angle lens having a focal length of 20 mm or less is mounted, the incident field angle is very large. A part of the photographer's hand holding the lens-fitted film unit may block the optical path of the ultra wide-angle lens. This state is shown in Figure 5.
, N is the angle of view of the standard lens, and W is the angle of view of the super wide-angle lens.

Further, when the photographing lens of the ultra wide-angle lens is attached, the irradiation angle of the strobe also becomes the super wide angle, so that it may happen that the strobe light is blocked by the finger.

[0006] Here, in order to allow the fingertip of the photographer to retract from the optical path of the photographing lens or the strobe, it is easy to simply enlarge the dimension in the lateral direction. In that case, the lens-equipped film unit equipped with the standard lens becomes unnecessarily large and unacceptable to the user. Also, a film unit with a lens equipped with a super wide-angle lens must be manufactured with the same equipment as a film unit with a lens equipped with a standard lens.
If a special jig or manufacturing equipment is required and the number of products produced is small, the cost will be very high.

In the above example, the film unit with a lens is described, but the same applies to a camera and a digital camera in which the film can be exchanged.

The present invention has been made in view of the above problems, and a plurality of types of cameras such as a camera having a standard specification and a camera having an ultra wide-angle lens can be used with a large number of common parts to manufacture facilities. When commonly used to co-produce,
It is an object of a camera provided with an ultra wide-angle lens to firmly attach two holding members capable of holding the camera so that the fingertip of the photographer does not block the optical path of the photographing lens.

[0009]

The above object can be achieved by the following means.

In a camera provided with a first cover for covering a camera body having various photographing mechanisms from one side, and a second cover for covering the camera body from the other side facing the camera body, First to hold from the side
A second part for covering a part of the first cover with a holding member, positioning and fixing the first holding member to the first cover or the camera body, and holding the camera from the opposite side. A camera characterized in that a part of the second cover is covered with a holding member, and the second holding member is positioned and fixed to the first holding member.

[0011]

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

FIG. 1 is an exploded perspective view of a front holding member, a lens-equipped film unit and a rear holding member as viewed from the front.
2 is an exploded perspective view of a rear holding member, a film unit with a lens, and a front holding member viewed from the rear, and FIG. 3 is a perspective view of a state in which the front holding member and the rear holding member are mounted on the film unit with a lens, FIG. 4 is an enlarged transverse sectional view of an engaging portion between a front holding member and a rear holding member.

In FIGS. 1 and 2, reference numeral 1 denotes a film unit with a lens, and a camera body having various photographing mechanisms is covered by a front cover 11 and a rear cover 12 from the front and back. This lens-equipped film unit 1 is equipped with a super wide-angle taking lens L having a horizontal half angle of view of 40 degrees or more and a focal length of 20 mm or less when using 135 film. Most of the components are common with the lens-equipped film unit (not shown).

In the lens-equipped film unit 1, the finder objective lens 13 is arranged above the photographing lens L, the strobe light emitting section 14 is arranged to the right of the finder objective lens 13, and the strobe main switch lever 15 is arranged below it. Has been done. A release button 16, an index window 17, and a charge display window 18 are arranged on the upper surface. In addition, a winding knob 21 on the back, eyepiece window 2 of the viewfinder
2. A charging display window 23 is arranged.

Here, since the lens-fitted film unit 1 is a special lens-fitted film unit equipped with an ultra-wide-angle photographing lens, the number of units sold is not so large as compared with a lens-fitted film unit equipped with a standard lens. Therefore, the super wide-angle shooting lens L, the finder lens and its peripheral parts, and the front cover 11 are exclusively used, and the other parts are shared with the lens-equipped film unit equipped with the standard lens to prevent the cost from increasing. There is. Also, in order not only to make the internal parts common, but also to make the assembly jig, etc., common in the manufacturing process, it is necessary to have the same external dimensions. The rear cover 12 is a common component.

With the above structure, it is possible to shoot with only the film unit with lens 1, but as it is, the finger of the photographer makes the incident optical path to the photographing lens L as described in "Problems to be solved by the invention". There is a risk of blocking the irradiation light path from the flash light emission window. Therefore, in the present embodiment, the front holding member 2 and the rear holding member 3 that can hold the photographer's finger position without blocking the optical path are attached to the lens-fitted film unit 1 from the front and back. And formed as shown in FIG.

That is, when the lens-fitted film unit 1 is viewed from the front, in other words, when the lens-fitted film unit 1 is in the horizontal direction in the horizontal direction, when viewed from the photographing lens L side, the front part is held on the right side surface and the left side surface. The member 2 and the rear holding member 3 project more than the front cover 11 and the rear cover 12, and in particular, the left side surface on the side where the release button 16 is provided projects more than the right side surface. In addition, in the center of the front holding member 2, a shielding prevention wall 2a that is formed in a horn shape and surrounds the taking lens L is provided upright. This allows
The left and right fingers of the photographer can hold the lens-equipped film unit 1 in a state of being separated from the lens-equipped film unit equipped with the standard lens, and the photographer's fingers can enter the photographing lens L from the incident light path or the stroboscopic light emission window. The risk of blocking the irradiation light path of is eliminated. In particular, the blocking prevention wall 2a can reliably prevent blocking of the incident optical path to the taking lens L with a fingertip.

Next, the procedure for mounting the front holding member 2 and the rear holding member 3 on the lens-fitted film unit 1 will be described.

First, the front holding member 2 is attached to the lens-fitted film unit 1 from the front. Positioning pins 2b and 2c project from the back surface of the front holding member 2, and the front cover 11 is positioned. The holes 11a and 11b are open. Therefore, the positioning pin 2b is inserted into the positioning hole 11a, and the positioning pin 2c is inserted into the positioning hole 11a.
When inserted in b, the front holding member 2 is positioned on the front cover 11, that is, the film unit with lens 1. At this time, the engaging claws 2d formed on the back surface of the front holding member 2 are engaged with the engaging holes 11c provided on the front cover 11, and the engaging claws 2e formed on the back surface of the front holding member 2 are removed. Front cover 11
Since it is engaged with the engagement hole 11d provided in the front cover 11, the front holding member 2 is attached to the front cover 11, that is, the lens-equipped film unit 1.
Will be fixed to.

The positioning holes 11a and 11b and the engagement holes 11c and 11d are not the front cover 11 but the front cover 1
It may be formed on the camera body located on the back side of 1.

Further, square openings 2f and 2g are formed in the central portion and the right portion of the front holding member 2, and the openings 2 are formed.
The taking lens L is located at the center of f, and the strobe main switch lever 15 projects from the opening 2g.

Next, the rear holding member 3 is attached to the film unit with lens 1 from the rear side, and the positioning bosses 3a and 3b project from the rear surface of the rear holding member 3 to the front holding member 2. Have positioning holes 2h and 2i. Therefore, the positioning boss 3a is inserted into the positioning hole 2h, and the positioning boss 3b is inserted into the positioning hole 2i.
, The rear holding member 3 is positioned on the front holding member 2. At this time, the engaging claws 3c formed on the side surface of the rear holding member 3 are attached from inside to the engaging holes 2j provided on the side surface of the front holding member 2, and the engaging holes formed on the side surface of the rear holding member 3. Since the attachment claws 3d are engaged with the engagement holes 2k provided on the side surface of the front holding member 2 from the inside, the rear holding member 3 is fixed to the front holding member 2.

Further, the engaging hole 2 provided in the front holding member 2
The portions where j and 2k are located are substantially rectangular and project rearward to form a protrusion 2m, and the portions where the engaging claws 3c and 3d provided on the rear holding member 3 are located are substantially rectangular recesses 3e. ing. Since the protrusion 2m fits into the recess 3e, the engagement between the rear holding member 3 and the front holding member 2 can be ensured in the three directions of up, down, left, and right.

However, since it is unstable to attach the rear holding member 3 to the front holding member 2 only from the left side when viewed from the front, the same is applied to the right side when viewed from the front. . However, on the right side, since the protrusion amount of the front holding member 2 and the rear holding member 3 is small, it is difficult to provide the positioning boss and the positioning hole as on the left side. Therefore, as shown in FIG. 4, the front holding member 2 and the rear holding member 3 are engaged with each other. FIG. 4 is an enlarged cross-sectional view of this engaging portion.

As shown in FIG. 4, the right end 3f of the rear holding member 3 is inserted into the groove 2n of the front holding member 2, and the engaging claw 3g formed on the right side surface of the rear holding member 3 is attached to the front holding member 2. To the engaging hole 2p provided on the side surface of the rear holding member 3 from the inside, and the engaging claw 3h formed on the side surface of the rear holding member 3 to the engaging hole 2q provided on the side surface of the front holding member 2 from the inside. Therefore, the rear holding member 3 is securely fixed to the front holding member 2. Further, the portions of the front holding member 2 where the engagement holes 2p and 2q are located have a substantially rectangular shape and protrude rearward to form a protrusion 2r.
And the engaging claws 3g provided on the rear holding member 3,
The portion where 3h is located is a substantially rectangular recess 3i.
Then, since the protrusion 2r fits into the recess 3i, the engagement state between the rear holding member 3 and the front holding member 2 is further strengthened in the three directions of up, down, left, and right.

In this way, the front holding member 2 and the rear holding member 3 are added to the lens-fitted film unit 1 as shown in FIG.
Will be installed.

Incidentally, the opening 3j provided in the rear holding member 3
Is an opening for a protruding portion 12a partially projected by the rear cover 12 due to the influence of internal parts.

In the above structure, the front holding member 2 is attached to the lens-equipped film unit 1, but the rear holding member 3 is not directly attached to the lens-equipped film unit 1. For this reason, some anxiety remains with respect to a drop impact. Therefore, the positioning pin 3
The positioning pins 3k and 3m are loosely fitted in the recesses 12b and 12c formed on the back surface of the rear cover 12 of the lens-equipped film unit 1 to prevent sink marks. As a result, the engagement of the rear holding member 3 is further strengthened even against a drop impact.

It should be noted that the configuration described above may be reversed, so that the rear holding member 3 is mounted on the rear cover 12 and then the front holding member 2 is mounted on the rear holding member 3.

Further, the front holding member 2 and the rear holding member 3
Is not limited to the lens-equipped film unit 1, and may be a film-exchangeable camera or a digital camera.

[0031]

According to the camera of the present invention, when a plurality of types of cameras are produced with a large number of common parts and the manufacturing facilities are commonly used for co-production, a camera equipped with an ultra-wide-angle lens can be used by a photographer. Two holding members capable of holding the camera can be firmly attached to the camera so that the fingertip does not block the optical path of the taking lens.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a front holding member, a lens-equipped film unit, and a rear holding member as viewed from the front.

FIG. 2 is an exploded perspective view of a rear holding member, a lens-equipped film unit, and a front holding member as viewed from the rear.

FIG. 3 is a perspective view showing a state where a front holding member and a rear holding member are attached to the lens-equipped film unit.

FIG. 4 is an enlarged cross-sectional view of an engaging portion between a front holding member and a rear holding member.

FIG. 5 is a diagram illustrating that a part of a hand of a photographer holding a film unit with a lens blocks an optical path of an ultra wide-angle lens.

[Explanation of symbols]

1 Film unit with lens 2 Front holding member 3 Rear holding member 11 Front cover 12 Rear cover L shooting lens

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) G03C 3/00 590 G03C 3/00 590K

Claims (8)

[Claims] 1. A camera comprising: a first cover that covers a camera body having various shooting mechanisms from one side; and a second cover that covers the camera body from the opposite side. A part of the first cover is covered with a first holding member for holding the camera from one side, and the first holding member is positioned and fixed to the first cover or the camera body, and the camera is opposed. The camera is characterized in that a part of the second cover is covered with a second holding member for holding from the other side, and the second holding member is positioned and fixed to the first holding member. 2. The first holding member and the second holding member project from the first cover and the second cover on the right side surface and the left side surface when viewed from the front. Camera. 3. The first holding member and the second holding member are characterized in that the left side surface of the first holding member and the second holding member project more from the right side surface than the first cover and the second cover when viewed from the front. The camera described in 2. 4. The one side is a subject side, and the other side is a photographer side.
The camera according to any one of 1. 5. The camera according to claim 1, wherein the first holding member is positioned on the first cover around a photographing lens. 6. The camera according to claim 1, wherein the second holding member engages with the first holding member in a shaft hole at a left end when viewed from the front. . 7. The second cover is formed with a predetermined recess, and a protrusion provided on the second holding member is loosely fitted in the recess. Either one
The camera described in the section. 8. A photographing lens having a horizontal half angle of view of 40 degrees or more is provided.
The camera described in the section.