JPS6012103Y2 - Mounting stand for close-up photography equipment - Google Patents

Description

[Detailed explanation of the invention] This invention connects the photographing lens and the focal plane with a bellows, etc.
The lens frame and the focusing glass frame at the focal plane are fixed on respective mounting bases that can slide on dovetail rails. be.

``In the conventional case, 1. As illustrated in Fig. 1, the rack 21 which has a dovetail section 1 and has a feeding rack 2' is used for re-legging or It is installed on a fixed stand, and a cashier's glass frame (both not shown) is slidably inserted into the fixed stand. A protrusion 5 having linear inner surfaces 4', 4' extending parallel to the outer circumferential side of the protrusion 5.
, 5 and this inner surface 4'.

A slider 6 made of a synthetic resin material and having outer surfaces 6', 6' in contact with the dovetail grooves 4' and dovetail grooves 6'', 6'' in contact with the dovetail grooves 1 is fitted and fixed.

Further, a knob 7 formed on the mounting base 4 is connected to a pinion 8 and meshes with the rack 2 to extend the mounting base 4, and a small knob 9 has its tip abutting against the rail 3 and is connected to a pinion 8 to engage with the rack 2 to extend the mounting base 4. and the rail 3 are fixed to each other.

In this □ configuration, the mounting base 4 is frequently removed from and inserted into the rail 3 depending on the conditions of use, but there is no possibility that the mounting base 4 may be dropped or hit against other equipment during handling. In this case, when it hits the protrusion 5 of the moss plate 4, the impact often causes the base of the dovetail groove 6'' of the slider 6 to chip or fall off.

Also, if the small knob 9 is tightened frequently, the mounting base 4 will be lifted by this tightening, but since the slider 6 is engaged, the dovetail groove 6'' will act outward along the slope, causing this to rise. Also, the base of the dovetail groove 6'' is broken! ? ! 3. Is the outer surface 6' of the slab 1 da 6 secured with small screws □)) to the bifurcated mounting base 4 poorly pressed? (5) In the case of 5, there may be rattling or poor stability, or the tightening may become loose due to twisting and twisting; Rider 6 is downward! However, it has many defects such as poor fixation with the stand 4 from which it is removed and the breakage mentioned above.
Ward again.

・□ The present invention is intended to reduce such drawbacks and provide a durable product. In Figures 2 and below, the protrusion 15 of the mounting base 14 has a protrusion 1 whose tip is inclined inward.
5', 15', and groove-shaped inner surface 1 on the mounting base 14.
4' and 14', the slider 6 has an outer surface as well as an inner surface 14', and the surface of the strip 1 is a substantially parallel inclined surface.

When the mounting base 14 is fixed to the rail 3 by tightening the small knob 19, the mounting base 14 is pulled upward and fixed.
', a force is applied in the direction of bringing the tape closer to each other, ensuring secure fixation and preventing breakage at the base of the inclined portion.

Reference numeral 7 designates the same knob as described above, and the small knob 19 may be the same as the conventional one, but as shown in FIG.
4 along the protrusion 15 and the protrusion 15'.
The small knob 19 is loosely fitted into the pressing piece 10 so that the pressing piece 10 can be pressed, so that the tip of the pressing piece 10 faces the edge of the slider 16 and can press this part.
It may also be of a type that can be press-fitted and fixed via the edges.

In this way, the present invention makes use of the inclined inner surface of the dovetail groove of the protruding part 15', and further utilizes the inclination of the dovetail strip. This function improves the strength of mechanically weak parts to withstand impact, and also allows the slider made of synthetic resin to be attached to the protruding parts 15', 1.
Since the slider is held so as to be held by the slider 5', there is no breakage of the slider, no loosening and rattling, etc., and the slider can be made durable.

[Brief explanation of the drawing]

Figure 1 is a front view of the mounting base showing the conventional configuration;
The figure is a partially cutaway front view showing an embodiment of the present invention, FIG. 3 is a bottom view, and FIG. 4 is a perspective view showing the state of use. 1 is a dovetail strip, 2 is a rack, 3 is a rail, 14 is a mounting base, 15 is a protrusion, 15' is a protrusion, and 16 is a slider.

Claims (1)

[Scope of utility model registration request] On a rail with both side edges forming a strip and a rack,
A mounting base that is slidably inserted into the rail via a pin and a J-shaped shaft that engage with the rack, and a mounting base that engages with dovetails on both side edges. The inner surface of the dovetail groove and the rail dovetail are attached to the protrusion.
A mount for a close-up photographing device that is provided with a slider having an inclined portion that matches each inclined surface.