JPH0428089Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an instant camera bag, and more particularly to an openable and closable instant camera bag using a box-like film container containing a plurality of stacked sheets of film.

[Background of the idea]

2. Description of the Related Art Conventionally, a camera bag that can be opened and closed and is detachable from a camera body has been used as a film changing device for an instant camera bag. The shaft support device of such an openable and closable camera bag uses an elastically deformable structure to connect and separate shafts for reasons such as ease of assembly and disassembly, lower manufacturing costs due to fewer parts, and ease of production. Many supporting devices are used. However, the conventional elastically deformable shaft support structure has the following drawbacks.

That is, since the fitting length of the shaft body is made as short as possible in order to reduce the amount of elastic deformation and make the coupling/separation operation easier, there is a drawback that it is easy to come off inadvertently.

In order to ensure a reliable connection, the length of the shaft body must be lengthened, and when attempting to connect and separate, a considerable amount of elastic deformation must be applied, and a considerably strong force must be applied for this purpose. This has the disadvantage that the camera bag may be destroyed in some cases.

[Purpose of invention]

The present invention was made to solve these drawbacks of conventional devices, and proposes an instant camera bag that has a long shaft body to ensure reliable connection while requiring less elastic deformation. It is intended to.

[Summary of the idea]

The present invention provides a shaft body on one side of a film container storage box body or a frame body having an exposure opening, and forms a bearing hole on the other side to fit with the shaft body, and in this bearing hole,
Since it forms a falling-off prevention wall that extends in the axial direction with a portion cut out, the amount of elastic deformation is smaller than before when attempting to separate, even though the mating length can be sufficiently long. can be easily separated by

〔Example〕

Preferred embodiments of the instant camera bag according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of the instant camera bag of the present invention. As shown in FIG. 1, an instant camera bag 1 is comprised of a film container storage box 2 made of a synthetic resin material, and a frame 4 made of a synthetic resin material in which an exposure opening 3 is formed. The box body 2 and the frame body 4 are pivotally coupled at one end side 5 so as to be freely openable and closable, and are configured to be closed by a closing portion frame member 6 during normal use. The frame 4 is attached to an instant camera, but the attachment of the frame 4 to the camera requires adjustment so that the film surface is precisely positioned on the imaging plane of the camera lens. This is usually done after separating the frame 4 from the box 2. Frame 4
In order to facilitate the installation of the frame 4 on the camera,
generally has a regulating surface 7 that touches the mounting surface on the camera side.
are formed, and after aligning both sides, attach and fix with setscrews, etc.

The box body 2 is coupled to the frame body 4 attached to the camera, and the camera bag 1 becomes ready for use.

FIGS. 2 and 3 are a partial perspective view and a partial sectional view showing a shaft support structure for removably connecting and separating the frame 4 and the box 2. FIG.

As shown in FIG. 2, a bearing 9 is formed on the inner surface of the box 2 on the side 5 at one end, into which a shaft of a frame 4, which will be described later, is fitted. This bearing 9 has a two-stage structure and consists of a bearing base 9a and a bearing wall 9b. The bearing holes 10 of both bearing portions 9a and 9b have the same diameter, and are designed so that the shaft of the frame 4 fits therein moderately and loosely. The bearing wall portion 9b has an outer diameter smaller than the bearing base portion 9a, and a portion 9c thereof is cut out. This notch 9c is formed at an angle of about 45° with respect to the regulating surface of the frame 4 when the camera bag is connected and closed.

On the other hand, a shaft 8 that fits into a bearing hole 10 is integrally formed on one end side 5 of the frame 4. This axis 8
has an approximately two-stage structure, with a cylindrical shaft base 8a
It consists of a shaft head 8b which is continuous with this, and has a cylindrical column with its opposing side surface parallel to the regulating surface cut out. The interval between the cut surfaces of the shaft head 8b is slightly smaller than the width of the notch 9c of the bearing wall 9b. A sleeve 11 is provided on the outer periphery of the shaft base 8a so as to cover it with a gap.
is formed. As for the shaft support structure on the opposite side to the shaft support structure consisting of the shaft 8 and bearing 9, a well-known shaft support structure consisting of separable bearings is sufficient, and the explanation thereof will be omitted.

The connection and separation structure of the camera bag configured as described above will be explained based on the partial cross-sectional view of the shaft support structure shown in FIG.

FIG. 3A shows a state where the box body 2 and frame body 4 are combined, and FIG. 3B shows a state during a separation operation. Hold frame 2 of the connected camera bag approximately
It is kept open at 45° and the direction of the cut surface of the shaft head 8a is aligned with the direction of the notch 9c of the bearing wall 9b within the bearing base 9a. Box 2 in this state
Alternatively, as shown in FIG.
is elastically deformed to such an extent that it comes off from the bearing wall portion 9a. In this state, the shaft head 8a is attached to the bearing wall 9b.
The cut surface of the shaft head 8a and the bearing notch 9c are brought to an aligned position while being pivotally supported by and kept in a connected state. Therefore, if the frame is moved downward in FIG. 3, the shaft head 8b will pass through the notch 9c of the bearing wall 9b, and the shaft 8 will separate from the shaft 9.
The box body 2 and the frame body 4 are completely separated.

To join the separated box body 2 and frame body 4,
This is performed by the reverse procedure of the above-mentioned separation procedure and is easily understood, so the explanation will be omitted.

According to the above embodiment, the length of the shaft constituting the shaft support structure is increased to increase the reliability of the connection in the normal connection state, and the shaft 8 and the bearing 9 are made into a two-stage structure, so that the box body 2 or the frame body 4 The amount of elastic deformation for joining and separating can be reduced, and the joining and separating can be done easily. Even if the length of the shaft head 8b and the corresponding hole depth of the bearing base 9a are designed to be a fraction of the total length, that is, the required amount of elastic deformation of the box or frame during connection and separation is Even if it is designed so that it is only a fraction of the shaft length, the actual shaft support length is equal to the shaft length.In the above embodiment, where the box and frame are held in a 45° positional relationship, the box and frame are Alternatively, the shaft 8 will not come off from the bearing 9 unless the frame is elastically deformed. This allows the camera bag in which the film is stored and the film surface to be properly positioned relative to the camera to be made of a relatively hard material that is less susceptible to elastic deformation. From this point of view, it is sufficient that at least one of the box body and the frame body is made of an elastically deformable material.

Furthermore, in the above embodiment, the position of the notch in the bearing wall is set at 45 degrees, but when opening and closing during normal use,
It is possible to select an angle at which external force that would cause elastic deformation of the box or frame is unlikely to be applied during operations not intended for separation. Furthermore, this angle is determined by the relative angle to the direction of the resection plane of the axial head.

〔Effect of the invention〕

As explained above, according to the instant camera bag according to the present invention, the shaft and bearing of the shaft support structure are
It has a stepped structure, and when connected, it fits into the bearing over the entire shaft length to provide a reliable shaft support connection, and when connected and separated, the shaft fit only when the box and frame are at a specific angle. There is an effect that coupling or separation can be easily performed by inserting or pulling out only a fraction of the combined length by elastic deformation of the box or frame.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of an instant camera bag, and FIG. 2 is a partially exploded perspective view showing the shaft support structure of an embodiment of the instant camera bag according to the present invention.
3A and 3B are partial cross-sectional views illustrating the coupled and separated state of the shaft support structure of FIG. 2. FIG. 1... Instant camera bag, 2... Box body, 4... Frame body, 8... Shaft, 9... Bearing.

Claims (1)

[Scope of Claim for Utility Model Registration] A film container that holds a film container containing a plurality of stacked sheets of film, can be attached to a camera body so that the uppermost film is correctly positioned at the exposure position of the camera, and is mounted on one side. In an instant camera bag consisting of a film container storage box body and a frame body having an exposure aperture, which are pivotally supported along the axis and connected to each other so as to be openable and closable, the frame body is provided with a shaft, and the box body is provided with a bearing that fits with the shaft. at least one of the shaft or the bearing is formed of an elastic material, the shaft comprises a shaft base and a shaft head having a smaller diameter than the shaft base and a flat cut surface, and the bearing has a bearing hole. It consists of a bearing base and a bearing wall thinner than the bearing base, and an opening is formed in the bearing wall, and the shaft or the bearing can be removed or fitted by elastically deforming through the bearing opening in the open position of the frame. An instant camera bag characterized by being able to be used with multiple cameras.