JPH0843934A - Film cartridge type camera - Google Patents

Abstract

PURPOSE:To easily attach and detach a film cartridge cover from the lower face of a camera while the camera being installed in a tripod. CONSTITUTION:A camera is one provided with a film cartridge chamber 2 to store a film cartridge, a film cartridge insertion inlet 2a formed in the 1 lower face of a camera main body 1 to attach or detach a film cartridge to or from the film cartridge chamber 2 along the axial core direction of the film cartridge, a revoluting-type cartridge cover 3 to open or close the film cartridge insertion inlet 2a, an operational part 5 to be operated in order to open the cartridge cover 3 which closes the film cartridge insertion inlet 2a, and a screw hole 6 formed in the lower face of the camera main body 1 for attachment to a tripod, and the revoluting axis 3a of the cartridge cover 3 is so positioned as to prevent each part of a tripod attached to the screw hole 6 from overlapping the revoluting route at the time when the revoluting-type cartridge cover 3 is opened or closed.

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 a film cartridge can be loaded from the lower surface of the camera body along its axial direction.

[0002]

2. Description of the Related Art In recent years, a film cartridge in which the leading end of a film is completely stored has been proposed. In a camera in which such a film cartridge is loaded, a backside that fully opens the rear surface of the camera like a camera in which a cartridge (for example, 135 film) in which the leader portion of the film is largely pulled out is used. A lid is not required, and the film cartridge can be sufficiently attached to and detached from the film cartridge chamber by providing the above-mentioned insertion opening for inserting the film cartridge and a small lid capable of opening and closing the opening.

Therefore, for example, a film cartridge chamber provided in the camera body for accommodating a film cartridge and a camera body for attaching and detaching the film cartridge to and from the film cartridge chamber along the axial direction thereof. A film cartridge insertion opening formed on the lower surface, a rotatable film cartridge lid that opens and closes the insertion opening, and a film cartridge lid that closes the film cartridge insertion opening are provided on the lower surface of the camera body. A camera having an operating portion and a screw hole for attaching a tripod formed on the lower surface of the camera body can be considered.

[0004]

However, in the above-mentioned camera in which the film cartridge is loaded from the lower surface of the camera body, when the screw hole for attaching the tripod and the film cartridge insertion opening are close to each other, the film cartridge lid is removed. I cannot open this lid because it interferes with the tripod head. Therefore, it is necessary to remove the tripod platform from the screw hole and then open the lid to load or replace the film cartridge. Further, when the operation unit is provided on the lower surface of the camera body, the operation unit is arranged so as not to interfere with the tripod platform, but the two are close to each other and the operability of the operation unit is deteriorated.

An object of the present invention is to provide a film cartridge type camera in which the film cartridge can be easily attached and detached from the lower surface of the camera while the tripod is attached.

[0006]

The present invention will be described with reference to FIG. 1 showing an embodiment. The present invention is provided on a lower surface of a camera body 1 and a film cartridge chamber 2 for accommodating a film cartridge. Film cartridge room 2
On the other hand, there are a film cartridge insertion opening 2a for attaching and detaching the film cartridge along the axial direction thereof, and a rotatable lid 3 for opening and closing the film cartridge insertion opening 2a, which is orthogonal to the axial direction of the cartridge. Then, the operation is performed to open the cartridge lid 3 that pivots around the pivot shaft 3a provided on the lower surface or the side surface of the camera body 1 and the cartridge lid 3 that closes the film cartridge insertion opening 2a. It is applied to a camera provided with a portion 5 and a tripod mounting screw hole 6 provided on the lower surface of the camera body 1. Further, in the invention of claim 1, the screw hole 6 is provided in the rotation path when the rotation type cartridge lid 3 is opened and closed.
The above object is achieved by positioning the rotating shaft 3a of the cartridge lid 3 so that the parts of the tripod attached to the cartridge do not overlap. According to the second aspect of the invention, the operation unit 5 is provided at a position where the operation is not hindered by the tripod platform 10. According to the invention of claim 3, the operation portion is arranged on the back surface or the side surface of the camera body.

[0007]

According to the first aspect of the invention, the cartridge lid 3 is opened and closed around the rotation shaft 3a without being obstructed by the tripod attached to the screw hole 6, and the film cartridge can be attached and detached without removing the tripod. With the camera according to claims 2 and 3, since the operation unit 5 can be operated without being obstructed by the tripod platform 10,
Operability is improved.

Incidentally, in the section of means and action for solving the above-mentioned problems for explaining the constitution of the present invention, the drawings of the embodiments are used to make the present invention easy to understand. It is not limited to.

[0009]

【Example】

-First Embodiment- A first embodiment of the present invention will be described with reference to FIG. In the figure, reference numeral 1 denotes a camera body, and a film cartridge chamber 2 for accommodating a film cartridge is provided on the right side inside the camera body. The film cartridge chamber 2 has a film cartridge insertion opening 2a that opens to the right side of the lower surface of the camera body 1. The film cartridge is attached to and detached from the film cartridge chamber 2 through the film cartridge insertion port 2a.

3 is a film cartridge insertion opening 2a
Is a film cartridge lid that can be opened and closed, and its right end is rotatably attached to the lower surface of the camera body 1 via a hinge pin (rotating shaft) 3a. A hook 3b is projected from the film cartridge lid 3, and when the film cartridge insertion opening 2a is closed by the film cartridge lid 3, the hook 3b is provided in a rectangular hole 1a of the camera body 1 (not shown). It is locked by a stop member.

Reference numeral 5 denotes an open knob (operating portion) which is arranged on the rear surface of the camera body 1 and is always urged to the left by a spring.
Is. When the knob 5 is operated to the right against the spring, the engagement between the engagement member provided in the rectangular hole 1a of the camera body 1 and the hook 3a of the film cartridge lid 3 is released, and the film cartridge lid 3 is opened. It will be released. Reference numeral 6 is a screw hole for attaching a tripod, which is formed substantially on the left side of the center of the lower surface of the camera body 1, and 7 is a finder.

As described above, in the camera of this embodiment, the screw hole 6 for attaching the tripod is formed slightly left of the center of the lower surface of the camera body 1, and the film cartridge insertion opening 2a is opened on the right side of the lower surface of the camera body 1. Therefore, the open end of the cartridge lid 3 can be configured not to interfere with the platform 10. That is, the position of the hinge pin 3a can be determined so that the respective parts of the tripod do not overlap each other in the turning path when the film cartridge lid 3 is opened and closed. Therefore, the film cartridge lid 3 can be opened and closed without being obstructed by the tripod platform 10 or the like. Further, since the open knob 5 is disposed on the back surface of the camera body 1, the pan head 10 is
The open knob 5 can be operated without being obstructed by the user.
As a result, the film cartridge lid 3 can be easily opened by the opening knob 5 to attach / detach the film cartridge while the camera is still attached to the tripod. Further, in this embodiment, since the hinge pin 3a of the film cartridge lid 3 is provided on the right side edge of the lower surface of the camera, it is widely opened without any restriction on the side of the camera and the film cartridge can be easily inserted.

Even when the center of rotation of the film cartridge lid 3 is set at the front edge of the camera and the open knob 5 is arranged on the right side surface of the camera body 1, the same effect as described above can be obtained.

-Second Embodiment- A second embodiment of the present invention will be described with reference to FIGS. In FIG. 2, reference numeral 11 denotes a camera body, and the camera body 11
A screw hole 12 for attaching a tripod is provided on the left side of the lower surface of the camera main body 11, and a film cartridge insertion opening 14a for attaching and detaching the film cartridge to and from the film cartridge chamber 14 is provided on the right side of the lower surface of the camera body 11. There is. As shown in FIGS. 3 and 4, one end of the film cartridge lid 15 has a hinge pin 1 on the left side edge of the insertion opening 14a.
It is rotatably supported via 6. A tripod 13 is attached to the screw hole 12 via the platform 13a.
The distance L1 from the hinge pin 16 to the tripod head 13a of the tripod 13 and the hinge pin 16 to the leg 13 of the tripod 13
The position of the hinge pin 16 is determined so that the distance L2 to b is larger than the turning radius R of the film cartridge lid 15.

As described above, the distances L1 and L2 from the hinge pin 16 to the platform 13a and the leg 13b of the tripod 13.
Is larger than the turning radius R of the film cartridge lid 15, the film cartridge lid 15 can be opened and closed while the camera is mounted on the tripod 13 to load or replace the film cartridge. The film cartridge lid 15
Although the open knob is not shown in the figure, it can be provided on the back surface or side surface of the camera as in the first embodiment.

[0016]

According to the present invention, since the opening and closing of the cartridge lid is not obstructed by the tripod attached to the screw hole, the lid can be opened and the film can be exchanged while the camera is attached to the tripod. Further, since the operation of the cartridge lid opening / closing operation portion is not hindered by the platform, the lid opening / closing operability is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of a film cartridge type camera according to the present invention as seen obliquely from below.

FIG. 2 is a perspective view showing a film cartridge type camera according to a second embodiment of the present invention in an inverted state.

FIG. 3 is a bottom view of the camera of FIG.

FIG. 4 is a front view showing the camera of FIG. 2 in an inverted state.

[Explanation of symbols]

 1,11 Camera body 2,14 Film cartridge chamber 2a, 14a Film cartridge insertion port 3,15 Film cartridge lid 5 Open knob 6,12 Screw hole 10,13a Pan head 13 Tripod

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yuji Katano 1-3-6 Nishioi, Shinagawa-ku, Tokyo Nikon Oi Manufacturing Co., Ltd.

Claims (3)

[Claims] 1. A film cartridge chamber for accommodating a film cartridge, and a film cartridge insertion port provided on the lower surface of the camera body for attaching and detaching the film cartridge to and from the film cartridge chamber along its axial direction. A rotatable lid that opens and closes a film cartridge insertion opening, the cartridge lid being rotatable about a rotation axis that is orthogonal to the axial direction of the cartridge and that is provided on the lower surface or side surface of the camera body. In a camera including an operation unit that is operated to open the cartridge lid that closes the film cartridge insertion opening, and a tripod mounting screw hole provided on the lower surface of the camera body, the cartridge lid is provided. The parts of the tripod attached to the screw holes do not overlap in the turning path when opening and closing. Film cartridge cameras, characterized in that positioning the pivot axis of the cartridge lid. 2. The film cartridge type camera according to claim 1, wherein the operation portion is provided at a position where the operation thereof is not hindered by the tripod platform of the tripod. 3. The film cartridge type camera according to claim 2, wherein the operation unit is provided on a back surface or a side surface of the camera body.