JPH0533140U - Camera accessory accessories-Shoe-mounting part - Google Patents

Abstract

(57) [Abstract] [Purpose] To ensure that the strobe body can be attached to the hot shoe of the camera body, and prevent mutual displacement of the energizing contact parts. [Structure] Hot shoe insert portion 27 of strobe body 23
A hot shoe locking metal fitting 1 having an elastic force in the vertical direction is mounted on this, and a locking claw 3 is formed at the tip of this locking metal fitting 1. When the hot shoe insert portion 27 is inserted into the hot shoe 19 provided on the camera body and the fixing nut 30 is tightened, the hot shoe engaging metal fitting 1 is pushed down and the engaging claw 3 engages with the hot shoe distal end portion. [Effect] Since the locking claw 3 of the hot shoe engaging fitting 1 engages with the tip of the hot shoe 19, the strobe main body 23
The rearward movement of the hot shoe insertion portion 27 is restricted, and the falling of the strobe body 23 and the displacement of the energizing contact portion are prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for securely attaching a camera accessory such as a strobe to an accessory shoe of a camera body.

[0002]

[Prior Art]

 The camera body is equipped with a hot shoe for attaching an external strobe. FIG. 3 is a plan view showing an example of a conventional camera body provided with a hot shoe. The camera body 10 has a built-in strobe opening / closing lid 11, a finder section 12, a shutter button 13, a power switch 14, a self-timer. Each operation unit such as a-button 15, a focus lever 16 and an exposure correction / setting button 17 is provided. A liquid crystal display panel 18 is provided at the center of the camera body 10 so that the information to be confirmed during shooting, such as the exposed state, film winding, rewinding, self-timer, etc., can be centrally displayed. ..

In this camera body 10, a hot shoe 19 is provided on the grip portion side of the upper surface of the body. The hot shoe 19 has guide portions 20, 20 bent in a U shape on both left and right sides, and a stopper projecting piece 21 is formed at a tip end portion thereof. In addition, a plurality of contact portions 22 that are electrically connected to the strobe are provided on the bottom surface portion.

4 and 5 show an example of a strobe attached to the hot shoe 19 described above. The front portion of the strobe body 23 is provided with a light emitting portion 24, an auto focus auxiliary light emitting portion 25, and an auto strobe light receiving portion 26, and various operation switches 29a and 29b are provided on the rear portion thereof. There is. At the lower end of the strobe body 23, there are provided a threaded leg portion 28 into which a fixing nut 30 is screwed, and a flange-shaped hot shoe insert portion 27 fixed to the leg portion 28. Although not shown in the drawing, a contact portion is provided on the back surface of the hot shoe insertion portion 27 so as to be electrically connected to the contact portion 22 of the hot shoe 19.

When the strobe body 23 is attached to the camera body hot shoe 19 described above, the hot shoe insertion portion 27 of the strobe body 23 is attached to the left and right guide portions 20 of the hot shoe 19 as shown in FIG. , 20 and then the fixing nut 30 is rotated and tightened on the upper surfaces of the left and right guide portions 20, 20 to fix the hot shoe insert portion 27 to the hot shoe guide portions 20, 20.

However, in the above-described conventional strobe mounting structure, particularly in the case of a large-sized strobe, the fixing nut 30 may naturally loosen during transportation, or the strobe body 23 may move when external pressure is applied to the strobe body 23. There is. As a result, the contact point of the hot shoe insertion portion 27 of the strobe body 23 and the hot shoe contact portion 22 cause contact failure, and the strobe malfunctions or, in extreme cases, the strobe body comes off the hot shoe. there were.

[0007]

[Problems to be solved by the device]

 The present invention securely fixes the camera accessories to the hot shoe to which a strobe etc. is attached and other accessory shoes to prevent the camera accessories from falling off the accessory shoe, and to prevent mutual energization of contact points. Its purpose is to prevent poor contact.

[0008]

[Means for Solving the Problems]

 The means adopted by the present invention to solve the above problems is a camera accessory equipped with an accessory shoe insert part and a fixing means for fixing the accessory shoe insert part to the accessory shoe of the camera body. The accessory shoe insert portion of the camera accessory is provided with locking means that engages the accessory shoe end portion in response to the fixing means.

[0009]

【Example】

 Hereinafter, an embodiment of the present invention will be described by way of an example in which it is applied to the strobe shown in FIGS. FIG. 1 is an enlarged schematic view of the hot shoe mounting portion at the lower end of the strobe, in which a threaded leg portion 28 is projectingly provided at the lower end portion of the strobe body 23, and a fixing nut 30 is screwed to the threaded leg portion 28. ing. By rotating the fixing nut 30, the fixing nut 30 is moved in the vertical direction along the threaded leg portion 28. A flange-shaped hot shoe insert portion 27 is fixed to the lower end of the screw-shaped leg portion 28. The strobe body 23, the threaded leg portion 28, the fixing nut 30, and the hot shoe insertion portion 27 have the same configurations as those of the conventional example shown in FIGS.

In the present invention, the hot shoe insert metal fitting 1 is attached to the hot shoe insert portion 27. As shown in FIG. 2, the hot shoe locking metal fitting 1 has arm portions 2 and 2 corresponding to the hot shoe guide portions 20 and 20, and the tips of the arm portions 2 and 2 are downward. The locking claws 3 and 3 (see FIG. 1) are formed by being bent in a curved shape. Further, the arm portions 2 and 2 are bent upward at the rear end bent portions 4 and 4, and an elastic force is applied in the vertical direction with the rear end bent portions 4 and 4 as fulcrums. The rear end portion 5 of the hot shoe fitting 1 is formed in a U-shaped cross section, and the rear end portion 5 is fitted in the rear end portion of the hot shoe insertion portion 27.

Although the hot shoe fitting 1 is a metal plate in this embodiment, it may be made of a synthetic resin plate instead. The hot shoe fitting 1 and the hot shoe insert portion 27 may be fixed by screwing, bonding or any other fixing method. When the hot shoe fitting 1 and the hot shoe insert portion 27 are made of a synthetic resin plate, they may be integrally formed with the hot shoe insert portion 27. ..

Next, a usage example of the above-described embodiment will be described. First, the hot shoe insertion portion 27 of the strobe body 23 is inserted between the hot shoe guide portions 20 and 20 of the camera body 10 shown in FIG. 3, and the tip of the hot shoe insertion portion 27 has a stopper projection 21. Push it in until it hits. At this time, the rear end portion of the hot shoe insert portion 27 slightly projects from the rear end portions of the hot shoe guide portions 20 and 20, and the rear end portion of the hot shoe engaging metal fitting 1 that rises from the rear end bent portions 4 and 4. The rib portions 2 and 2 are located above the hot shield portions 20 and 20.

After that, when the fixing nut 30 is rotated and moved downward, the fixing nut 30 pushes down the hot shoe fitting arm portions 2 and 2, and the arm is placed on the upper surface of the hot shoe guide portions 20 and 20. Tighten the hot shoe guide parts 20, 20 while pressing the parts 2, 2. As a result, the hot shoe insert portion 27 is fixed to the hot shoe guide portions 20, 20. At this time, the tip locking claws 3, 3 of the arm portions 2, 2 engage with the tip portions of the hot shoe guide portions 20, 20, and the backward movement of the hot shoe insertion portion 27 (movement in the pulling direction) is prevented. Regulated.

When the strobe main body 23 is removed from the hot shoe 19, the fixing nut 30 is loosened, and the arm portions 2 and 2 of the hot shoe locking metal fitting 1 are elastically repulsed by the elastic force of the hot shoe guide portions 20 and 20. The engaging relationship between the locking claws 3 and 3 and the tips of the hot shoe guides 20 and 20 is released by separating from the upper surface. In this state, the strobe main body 23 can be removed by pulling out the hot shoe insert portion 27 from the hot shoe guide portions 20, 20.

The embodiment described above is an example of the present invention, and as the hot shoe fixing means of the strobe body 23, a pressing member is pushed from the lower end of the strobe body by operating, for example, a lock lever instead of the fixing nut 30. A mechanism may be used in which the hot shoe guide portions 20 and 20 are clamped between the hot shoe insert portion 27 and the hot shoe insert portion 27. Further, in the above-described embodiment, the locking claws 3, 3 are adapted to be engaged with the tips of the hot shoe guide portions 20, 20, but the locking claws are adapted to be engaged with the stopper projection piece 21. The shape of the hot shoe-locking fitting 1 may be changed. The present invention, for example, is used to connect a stroboscope body via an extension cord, such as a hot shoe mounting portion of a hot shoe adapter, a hot shoe mounting portion of an extension cord, and other camera accessories. It can also be applied to the hot shoe attachment part of the present invention, and can be applied not only to the hot shoe attachment part but also to other accessory shoe attachment parts.

[0016]

According to the present invention described above, the hot shoe insertion portion of the camera accessory is provided with the locking means for engaging the hot shoe end portion in response to the hot shoe fixing means. , The fixing means is prevented from falling off even if the fixing means is slightly loosened during transportation or external pressure is applied to the camera accessory, and the position of the contact point of the hot shoe disappears. It is possible to prevent malfunction of camera accessories. Further, the structure is relatively simple and can be implemented inexpensively without changing the structure of the hot shoe.

[Brief description of drawings]

FIG. 1 is an enlarged schematic view of a strobe hot shoe mount according to an embodiment of the present invention.

FIG. 2 is a plan view of a hot shoe-locking metal fitting according to an embodiment of the present invention.

FIG. 3 is a plan view of a conventional camera body.

FIG. 4 is a front view of a conventional strobe.

FIG. 5 is a side view of the flash shown in FIG.

FIG. 6 is an enlarged schematic view of a conventional strobe hot shoe mounting portion.

[Explanation of sign]

 1 Hot shoe-locking metal fitting 2 Hot shoe-metal fitting locking arm 3 Hot shoe-metal fitting locking nail 4 Hot shoe-metal fitting rear end bent portion 6 Hot shoe-metal fitting rear end 19 Hot shoe-20 Hot shoe- Guide part 23 Strobe body 27 Hot shoe insertion part 30 Fixing nut

Claims (1)

[Scope of utility model registration request] 1. A camera accessory including an accessory shoe insert and a fixing means for fixing the accessory shoe insert to an accessory shoe of a camera body. An accessory shoe mounting portion for a camera accessory, characterized in that the accessory shoe inserting portion is provided with a locking means that responds to the fixing means and engages with the accessory shoe end.