JPH0559456U - Panorama adapter - Google Patents

Abstract

(57) [Summary] [Objective] To provide a panorama adapter that is easy to manufacture and does not require a dedicated jig for attachment and detachment. A panorama adapter having a rectangular exposure window for panoramas, which is used by being attached to an image frame provided in a camera body, wherein a pair of light blocking plates along a long side of the exposure window and a pair of the pair of light shielding plates are provided. One piece which is provided along each of the short sides of the exposure window portion for connecting the light-shielding plate portion and which has an engaging portion projecting to the lens side so as to engage with the image frame, and which has elasticity as a whole. It is characterized in that it is formed of a plate member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a panoramic adapter having a panoramic rectangular exposure window portion which is used by being mounted on an image frame provided on a camera body.

[0002]

[Prior Art]

 There are three types of shooting with a general camera: full size (24 mm x 36 mm), half size (24 mm x 17 mm), and panoramic size (36 mm x 13 mm). Traditionally, panorama adapters have been used for panoramic size photography. The conventional panorama adapter is provided along a long side of the rectangular exposure window for panorama and a pair of shading plates along the short side of the exposure window for connecting the pair of shading plates. , And an engaging portion that engages with the image frame of the camera body, and this engaging portion is a separate structure from the pair of light-shielding plate portions and can be attached to and detached from the image frame. As described above, the pair of light blocking plates are slidably provided by springs.

However, the above-mentioned conventional panorama adapter is apt to be damaged if the engaging portion is directly pushed by hand for attaching or detaching to the camera body, and therefore a dedicated jig for attaching and detaching is required. There was a problem. Further, since the engaging portion is separate from the pair of light-shielding plate portions and it is necessary to use the spring, there is a problem that it takes time to manufacture.

[0004]

[Problems to be solved by the device]

 Therefore, an object of the present invention is to provide a panoramic adapter which is easy to manufacture and does not require a dedicated jig for mounting and dismounting.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the panorama adapter of the present invention is a panorama adapter having a rectangular exposure window for panoramas which is used by being attached to an image frame provided on the camera body. And a pair of light-shielding plate portions along with the pair of light-shielding plate portions are provided along the short sides of the exposure window portion for connecting the pair of light-shielding plate portions, and project toward the lens side so as to engage with the image frame. It is characterized in that it is formed of a single plate member having an engaging portion and having elasticity as a whole.

Further, the invention is characterized in that a lever portion is provided which extends from at least one end portion of the pair of light shielding plate portions and is bent and extended toward the lens side. Further, it is characterized in that a position regulating piece for regulating the position in the short side direction of the exposure window portion, which is bent and extends in the lens side direction from at least one outer edge of the pair of light shielding plate portions, is provided.

[0007]

[Action]

 When installing the panorama adapter, engage one of the engaging parts with the image frame of the camera body, and press it using the elasticity of the whole body so that the other engaging part also approaches the image frame .. When the other engaging portion is engaged with the image frame to release the pressing force, the elasticity allows the other engaging portion to firmly engage with the image frame. The panorama adapter can be easily removed by performing the reverse operation. Further, by providing the lever portion that extends from the end portion of the light shielding plate portion and bends and extends toward the lens side, the above-mentioned operation can be performed using the lever portion, and the handling becomes easy. Further, by providing a position restricting piece that restricts the position in the short side direction of the exposure window portion, which extends from the outer edge of the light shielding plate portion in the lens side direction, it is possible to prevent misalignment.

[0008]

【Example】

 Embodiments of the present invention will be described below. 1 and 2 are a front view and a bottom view of the panoramic adapter of this embodiment. As shown in FIG. 3, this panorama adapter is used by being attached to an image frame provided on the camera body 1. In the camera body 1, 11 is a lens, 12 is a film running path, and 13 and 14 are edges of image frames. In the panorama adaptor, 2 is a rectangular exposure window portion for panorama (hereinafter appropriately referred to as "exposed window portion"), 31 and 32 are light shielding plate portions, 41 and 42 are engaging portions, 51 and 52 are lever portions, 61, 62 is a position control piece.

The pair of light-shielding plate portions 31, 32 are for adapting the size of the exposure window portion 2 to a panoramic size (36 mm × 13 mm), and extend along the long side of the exposure window portion 2.

The engagement portions 41 and 42 are provided along the short sides of the exposure window portion 2 for connecting the pair of light shielding plate portions 31 and 32, respectively, and the edge portions 13 and 14 of the image frame of the camera body 1 are provided. (See FIG. 3) so as to engage with the lens 11 side. These engaging portions 41 and 42 are engaged with the edge portions 13 and 14 of the image frame so as to elastically press them, and the positions are fixed. It should be noted that a projection may be provided on the constituent member of the image frame, and the engagement portions 41 and 42 may be engaged with the projection.

The lever portions 51 and 52 are provided so as to extend from the end portions of the pair of light shielding plate portions 31 and 32, for example, the front end 33, and bend and extend toward the lens 11. When the lever portions 51 and 52 are attached to the image frame and pushed toward the edge portion 13 side of the image frame on the opposite side, as shown in FIG. It is preferable that the lengths of the lever portions 51 and 52 be regulated so that the pair of light shielding plate portions 31 and 32 do not excessively bend by coming into contact with the constituent members of the image frame. Although the lever portions are provided on both of the light shielding plate portions 31 and 32 in FIG. 1, the lever portion may be provided on only one of the light shielding plate portions.

The position restricting pieces 61, 62 are provided by being bent in the lens 11 side direction from the outer edges of the pair of light shielding plate parts 31, 32, and restrict the position of the exposure window part 2 in the short side direction. .. In FIG. 1, two position regulating pieces are provided for each of the light shielding plate portions 31 and 32, but they may be provided only on one of the light shielding plate portions, and the number of position regulating pieces is not particularly limited. ..

The panorama adapter having the above configuration is formed of a single plate member having elasticity as a whole. As the constituent material, for example, metal, resin or the like can be used. For example, it is preferable to press-mold using stainless steel having a thickness of about 0.2 mm in terms of ease of production, cost, and elasticity. Further, it is preferable that the entire surface of the panoramic adapter has a black surface from the viewpoint of antireflection and matting.

Next, a method of attaching and detaching the panorama adapter of this embodiment will be described. As shown in FIG. 5, while holding the panorama adapter by hand, attach the engaging portion 41 located at the end opposite to the end where the levers 51 and 52 are provided to one of the image frames of the camera body 1. The edge portion 13 is engaged. As shown in FIG. 6, when the lever portions 51 and 52 are pressed in the direction of the engaging portion 41, the pair of light shielding plate portions 31 and 32 are elastically bent in a direction away from the lens 11 of the camera body 1. Come to do. Along with this, the other engaging portion 42 also approaches the other edge portion 14 of the image frame until it can be engaged. As shown in FIG. 7, when the other engaging portion 42 is engaged with the other edge portion 14 of the image frame to release the pressing force against the lever portions 51 and 52, the pair of light shielding plate portions 31 and 32 is elastically deformed. Returns to the original state, and the other engaging portion 42 is firmly engaged with the other edge portion 14. Further, since the position regulating pieces 61 and 62 contact the edge portion of the image frame, the positional deviation of the pair of light shielding plate portions 31 and 32 in the short side direction of the exposure window portion 2 does not occur and the position regulating pieces 61 and 62 ride on the image frame. Can be prevented. To remove the panorama adapter, reverse the above procedure.

According to the panorama adapter of this embodiment, the following operational effects can be obtained. (1) Since the whole is formed of a single elastic plate member, the manufacturing is easy. (2) The engaging portions 41 and 42 are engaged with the edge portions 13 and 14 of the image frame by utilizing the bending due to the elasticity of the pair of light shielding plate portions 31 and 32 when the lever portions 51 and 52 are pressed. The panorama adapter will not be damaged even if it is handled directly by hand. (3) A dedicated jig for mounting and dismounting is not required, and handling is convenient. (4) When the lever parts 51 and 52 are attached to the camera body 1 and pushed to the edge part 13 side opposite to the image frame, the tips of the lever parts 51 and 52 become the components of the image frame. Since the lengths of the lever portions 51 and 52 are regulated so that the pair of light shielding plate portions 31 and 32 do not excessively bend in contact with each other, there is no fear that the panorama adapter will be damaged when handled by hand. (5) Since the position control pieces 61 and 62 are provided, the pair of light shielding plate portions 31 and 32 is not displaced in the short side direction of the exposure window portion 2, and the panoramic size image capturing can be performed in an appropriate state. it can.

[0016]

[Effect of the device]

 (1) According to the panorama adapter of claim 1, manufacturing is simple, and a dedicated jig for attaching and detaching is unnecessary. (2) According to the panorama adapter of claim 2, handling is convenient. (3) According to the panorama adapter of claim 3, it is possible to take a panorama size image in an appropriate state.

[Brief description of drawings]

FIG. 1 is a front view of a panoramic adapter according to an embodiment.

FIG. 2 is a bottom view of the panoramic adapter according to the embodiment.

FIG. 3 is an explanatory diagram showing a state in which the panorama adapter is attached to the camera body.

FIG. 4 is an explanatory view showing a preferable aspect of a lever portion.

FIG. 5 is an explanatory diagram of a method of attaching the panorama adapter according to the embodiment.

FIG. 6 is an explanatory diagram of a method of attaching the panorama adapter according to the embodiment.

FIG. 7 is an explanatory diagram of a method of attaching the panorama adapter according to the embodiment.

[Explanation of symbols]

1 camera body 11 lens 12 film running path 13 and 14 edge part of image frame 2 panoramic rectangular exposure window part 31 and 32 light shielding plate part 33 front end 34 rear end 41 and 42 engaging part 51 and 52 lever part 61 and 62 position Regulated piece

Claims (3)

[Scope of utility model registration request] 1. A panorama adapter having a rectangular exposure window for panoramas, which is used by being attached to an image frame provided on a camera body, wherein a pair of light-shielding plates are provided along a long side of the exposure window, An engaging portion is provided along each of the short sides of the exposure window portion for connecting the pair of light-shielding plate portions, the engaging portion protruding toward the lens side so as to engage with the image frame, and is entirely elastic. A panoramic adapter characterized by being formed of a single plate member. 2. A panorama adaptor, comprising a lever portion extending from at least one end of the pair of light shielding plate portions according to claim 1 and extending by bending toward the lens side. 3. A position regulating piece for regulating the position of the exposure window portion in the short side direction, which is bent and extends in the lens side direction from at least one outer edge of the pair of light shielding plate portions according to claim 1, is provided. The featured panorama adapter.