JPS5842977Y2 - Photographic flashlight fixing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixing device for fixing a photographic flash to a photographic camera.

This type of fixing device is disclosed in Japanese Patent Application Laid-Open No. 51-151536, in which a plurality of protrusions provided on a lock lever that rotates horizontally are connected to a plurality of protrusions provided on a cam body. The photographic flash device is fixed to the camera by rotating the cam body and pressing the rubber body provided on the cam body against a part of the camera shoe.It can be fixed simply by rotating the lock lever. The aim is to make the operation simple.

However, the rotation of the lock lever engages the protrusion of the lock lever with the protrusion of the cam body, and rotation of the lock lever requires a considerable force, and the protrusion of the lock lever engages the protrusion of the cam plate. When the vehicle runs over the vehicle, the lock lever does not move correctly horizontally and lacks operability.

To improve this problem, the spring force that presses the cam body upward can be weakened.If the spring force is weakened, the pressing force of the protrusion of the cam body against the protrusion of the lock lever will be weaker, which will cause vibrations and There is a risk that the protrusion of the lock lever riding on the protrusion of the cam body may come off due to an impact or the like, making it impossible to fix the photographic flash device to the camera.

Therefore, the present invention has been made to solve this problem, and will be explained below with reference to the drawings.

FIG. 1 is an exploded perspective view of the fixing device of the present invention. Reference numeral 1 indicates a plate 6 having a plurality of protrusions 4 in the shape shown, elastic rubber 5 at both ends,
The cam body 2 has a plurality of protrusions 9 that engage with the protrusions 4 at the upper end portion of the through hole 20 of the cylinder 7, and the first gear 8 is integrally attached to the cylinder 7. Cam body 1
a coupling member 3 is a gear 10 that engages with a gear 8 and a hole 1;
An operating member 1 and an operating portion 12 are used to rotate the coupling member 2, and 13 is a housing in which the cam body 1, the coupling member 2, and the operating member 3 are housed.

This housing is provided with a coupling part 14 on the outside that is coupled to a part of the camera shoe, and a sliding groove 15 is provided on the opposite side surface of the coupling part 14, and a rubber body 5, An insertion hole 16 is provided so that the handle 5' can protrude, and a cut groove 17 is provided on the side surface of the housing so that the operating section of the operating member 12 can protrude to the outside.

Inside thereof, there is a support rod 18 of the operating member 12 that is fitted into the hole 11 of the operating member 12, and a fitting part 19 formed in the shape of the cam body 1 and into which the cam body 1 is fitted at the corresponding position of the mounting part 14. This fitting part 19 is provided with a support rod 21 that is inserted into the hole of the cam body 1 and the through hole 20 of the coupling member 2 and supports the cam body 1 and the coupling part 2 .

Next, the assembly will be explained with reference to the top view in FIG. 2 and the cross-sectional view in FIG. The cam body 1 is placed on top of the cam body 1, and the support rod 21 is fitted into the through hole 20 with the protrusion 9 downward so as to engage with the protrusion 4, and the coupling member 2 is installed. A metal rod 23 is held by the support rod 21, and the lower part 26 is inserted into the hole 24, and the protrusion 25 prevents the metal rod 23 from coming off, allowing electrical connection to the hot shoe of the camera. A spring 28 is installed within the width of the hole 20 through which the spring 27 is inserted.

Next, the operation part 12 is made to protrude from the cut groove 17, the support rod 18 is fitted into the hole 11, and the operation member 3 is attached so that the gears 8 and 10 mesh with each other.Finally, the presser plate 29 is attached and assembled. A fixing device constructed as follows is attached to a photographic flashlight.

FIG. 2 shows a top view of the fixing device, and when it is not fixed to the camera, the coupling member 2 and the operating member 3 are in the positional relationship shown in the figure, and the cross-sectional view taken along the line A-A' is shown in FIG. 3
As shown in the figure, the cam body 1 is being pushed upward by the pressing force of the spring 22 at this time.

When such a device is used, the sliding groove 15° 15' of the coupling part 14 is
When the U-shaped shoe of the camera is inserted into the camera and the operation part 12 is rotated in the direction of the arrow, the gears 8 and 10 are rotated in the direction of the arrow, the protrusion 9 rides on the protrusion 4, and as a result, the protrusion The cam body 1 is lowered by the height of , and the rubber bodies 5, 5' press against the upper end surface of the shoe part, and the photographic flash device is fixed to the camera.

On the contrary, when removing it, if the operation part 12 is rotated in the opposite direction of the arrow, the projection 4 and the projection 9 will be released from riding on each other, and the cam body 1 will be pushed upward by the pressing force of the spring 22, and the rubber body 5 will be removed. , 5' on the shoe part is removed, so that the attachment part 14 can be removed from the shoe part.

As explained above, the present invention applies force directly to the coupling member by rotating the coupling member that has a protrusion that engages with the protrusion of the cam body that has a rubber body that presses the upper end surface of the shoe part. Since the operation member is provided with a gear that meshes with a gear provided on the coupling member, the force is applied indirectly through these gears, and therefore, less force is required to be applied to the operation member for fixing.

In addition, since no force is required, force can be accurately applied to the operating section in one direction, so it can be securely fixed.

Furthermore, since the spring that presses the cam body upward does not affect the operating member, it is possible to use a spring with a large force, and therefore the pressing force of the protrusion of the cam body against the protrusion of the cylinder can also be increased. The cylindrical protrusion does not come off from the cam body protrusion due to vibration, impact, etc., and stable fixation is possible.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the fixing device of the present invention, Fig. 2 is a top view of the fixing device of the present invention, and Fig. 3 is a sectional view taken along line A-A' in the top view of Fig. 2. It is. 1...Cam body, 2...Connection member, 3.
...Operation member, 13...Housing, 22...
... Spring, 23 ... Metal rod, 28 ...
・・Spring, 29・・・・Pressing plate.

Claims (1)

[Scope of utility model registration request] A connecting portion having a sliding groove on an opposing side surface that is connected to a portion of the camera shoe, an insertion hole and a cut groove provided in the sliding groove, and a first support rod inside at a position opposite to the connecting portion. a housing having a second support rod therein; and an elastic rubber having a plurality of protrusions around the hole and pressing an upper end surface of the shoe portion at opposing positions. a cam body that is inserted into the first support rod through the hole so that the elastic rubber is disposed at the position of the insertion hole, and is disposed inside the housing; a spring that presses the cam body upward;
a cylinder having a hole through which the support rod is inserted; a cylinder having a gear and a plurality of projections that engage with the plurality of projections of the cam body around the hole; and a hole through which the second support rod is inserted. an operating member having a gear that meshes with the gear of the cylinder, and an operating portion protruding from the kerf to the outside of the casing; and pressing the upper surface of the cylinder combined with the cam plate and the operating member; A fixing device for a photographic flash device comprising an attachable presser plate.