JPH0334138Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a shoulder joint fitting for a mannequin (hereinafter simply referred to as a mannequin).

The shoulder joints of conventional mannequins are nothing more than a universal joint structure using a ball, and if a heavy object is suspended from the arm with the arm raised, the arm cannot withstand the weight.

This idea solves the above-mentioned problem when heavy objects are suspended from the mannequin's arms.The purpose of this idea is to be able to move the mannequin's arms forward, backward, left and right, and to allow the mannequin's arms to move forward, backward, left and right, and to be able to do this with the arms raised. To provide a shoulder joint metal fitting that can sufficiently withstand even when a heavy object is hung on the arm.

Details of this invention will be explained below based on embodiments shown in the accompanying drawings.

In Figure 1, 1 is the spinal column structure of the mannequin, 2
Reference numeral 3 indicates an arm portion, 3 indicates a shoulder joint fitting of the present invention, and 4 indicates a mounting structure for supporting this shoulder joint fitting on a spinal column structure. As will be described later, the attachment structure 4 has the function of a joint at the inner end of the clavicle in the human body.

The shoulder joint fitting 3 includes a rotation mechanism part 31 for rotating the arm part 2 in the front-rear direction, and a swing mechanism part 32 for swinging the arm part in the left-right direction.

As shown in the enlarged view of FIG. 2, the rotating mechanism section 31 includes a conical cylindrical friction plate 311, a friction plate 312 overlapping the friction plate, a bolt 313, and a nut 314 screwed into the male threaded portion of the bolt 313. Further, a coil spring 315 is interposed between the head a of the bolt 313 and the inward flange b of the inner friction plate 311.
1 in contact with the outer friction plate 312, and the nut 31
4, the outer friction plate 312 is connected to the inner friction plate 3.
11 to generate frictional resistance.

The outer friction plate 312 has a seat (attachment part) for the attachment part 41 which is connected to the attachment structure 4, but is not shown. 316 is a mounting screw.

The inner friction plate 311 has a mounting surface (disc) 317 for the swing mechanism section 32 and a female fitting for the male fitting cylinder 322 that protrudes from the center of the mounting surface (disc) 321 of the swing mechanism section 32. There is a joint tube portion 318.

The bolt 313 has a cylindrical shape, and the female fitting cylindrical portion 3
18 is inserted into this bolt.

An advancing/retracting shaft 323 is inserted into the male fitting cylinder 322 of the swinging mechanism section 32, and one end of a link rod 324 is connected to the rear end of the advancing/retracting shaft 323.
The rear end of 24 is connected to the center of a two-layered arm mounting plate 325, and the arm mounting plate 325 is connected to the swing mechanism section 32.
A support plate 326 fixed to a mounting surface 321 in
It is attached and supported by a pin 327 on the upper side thereof.

A small-diameter threaded shaft 328 protrudes from the tip of the forward/backward shaft 323, and an elastic cylinder 329 is attached to the screw shaft 328 to tighten the nut 3.
30 is screwed in, and by holding the arm part 2 and moving it left and right and up and down, the forward and backward shaft 323 moves forward and backward as shown in FIG. The frictional resistance with the inner circumferential surface of the male fitting cylinder 322 increases, and the movement of the male fitting cylinder 322 becomes harder. The cylindrical body 331 is inserted because the nut 330 has a thin cylindrical shape due to its structure and is insufficient to crush the elastic cylindrical body 329. 3
32 indicates a "-" groove for turning the nut with a screwdriver.

The male fitting cylindrical body 322 is structured so that it cannot be freely extracted from the female fitting cylindrical portion 318. The structure is such that a small diameter portion c is located near the tip of the male fitting cylinder 322.
The female fitting cylindrical portion 318 has an inwardly bulging portion d corresponding to this small diameter portion, and the female fitting cylindrical portion 31
8 is not shown, but it is divided into several elastic pieces by an axial cut to allow the male fitting cylinder to move forward and backward, and each elastic piece is bundled and compressed by an O-ring-shaped strong elastic ring body 319. There is. Reference numeral 333 denotes a guide notch formed in the support plate 326, through which the reciprocating shaft 323 and the link rod 324 move forward and backward.

As shown in FIGS. 4 and 5, the mounting surface 317 of the rotating mechanism section and the mounting surface 321 of the swinging mechanism section opposing thereto have one dowel on the circumferential side. 334, and three dowel holes 335 are provided on the mounting surface 317 at equal intervals on the circumferential side, and the friction plates 311 and 312 of the rotation mechanism are pressed against each other to prevent rotation, and the arm can be moved back and forth. The arm can be fixed at the rotational position by rotating in the vertical direction and fitting the dowel into the corresponding dowel hole near a desired position.

The structure 4 for attaching the shoulder joint fitting 3 to the spinal column structure 1 is made of a square shaft rod 42 as shown in FIG.
Bolts 43a having different directions by 90° at both ends,
43b penetrates, and nuts 46 are screwed into both ends of these bolts through friction plates 44a, 44b and a coil spring 45, and this structure 4
The square shaft rod 42 moves horizontally using the bolt 43a as a fulcrum, moving the shoulder part in the front and back direction, and the bolt 43
When the mounting part 41, that is, the shoulder joint fitting 3 itself is moved up and down using b as the pivot as shown in FIG. The movement becomes stiff.

21 indicates an elbow joint metal fitting.

This device is as described above, and this shoulder joint fitting for a mannequin consists of a mechanism for rotating the arm in the front-rear direction and a mechanism for swinging the arm in the left-right direction.The rotation mechanism includes two friction plates. are stacked on top of each other and passed through a cylindrical bolt with a coil spring interposed between them, and the nut is screwed in. One friction plate has an attachment part to the connecting structure to the spinal column, and the other friction plate has a rocker that goes into the bolt. The outer end of the shoulder is provided with a female fitting cylinder part for coupling the male fitting cylinder of the moving mechanism part, and a dowel is provided on one side and a dowel hole on the other side on the opposing mounting surfaces of both mechanism parts. (Arm attachment part) can be rotated in the front and back up and down directions, and by pressing the two overlapping friction plates together by tightening the nuts, the frictional resistance of both friction plates becomes large, and when free rotation stops, the next By fitting the dowel into the dowel hole near the opposite side, there is an effect that the elevation angle on the arm side can be fixed at a desired angle.

Further, the swinging mechanism section includes a male fitting cylinder coupled to the female fitting cylinder of the rotation mechanism, a support plate fixed to the rear end and swingably supporting the arm mounting plate, and a male fitting cylinder. It consists of a forward and backward shaft that is inserted into a cylinder and connected to the arm mounting plate via a link rod.A small diameter threaded shaft is protruded from the tip of the forward and backward shaft, and an elastic cylinder is attached to this and a nut is screwed into it. Because of this, not only can the arms be made to swing horizontally and vertically, but also the rocking movement can be made more rigid by tightening the nuts, and the forward and backward movement of the forward and backward shafts can also be made impossible. In combination with the adjustment of the rotating mechanism, even if a heavy object is suspended from the raised arm, the arm can sufficiently withstand the weight.

[Brief explanation of the drawing]

Fig. 1 is a front view of the main parts of a mannequin equipped with the shoulder joint fitting of the present invention, Fig. 2 is an enlarged partially cutaway front view of the main parts of the same, and Fig. 3 is the male fitting cylinder and the forward and backward axis of the same. , and a partially cutaway plan view showing only the connected parts, No. 4
The figure is a right side view showing the mounting surface of the swinging mechanism part of the swinging mechanism part, FIG. 5 is a left side view showing the mounting surface of the swinging mechanism part of the swinging mechanism part, and FIG. 6 is a shoulder joint metal fitting. FIG. 3 is a partially cutaway front view showing the operating state of the device. 3...Shoulder joint metal fitting, 31...Rotation mechanism part, 31
1,312...Friction plate, 313...Bolt, 31
4...Natsuto, 315...Coil spring, 3
17... Rocking mechanism part mounting surface, 318... Female fitting tube part, 32... Rocking mechanism part, 321... Rotating mechanism part mounting surface, 322... Male fitting cylinder body, 323... Advance/retreat Shaft, 324... link rod, 325... arm mounting plate,
326...Support plate, 328...Small diameter screw shaft, 32
9...Elastic cylindrical body, 330...Nut, 334...
Dowel, 335...Dowel hole.

Claims (1)

[Scope of utility model registration request] It consists of a mechanism for rotating the arm in the front-rear direction and a mechanism for swinging the arm in the left-right direction. one friction plate is provided with an attachment part to the connecting structure to the spinal column, and the other friction plate is provided with a female fitting cylinder part for the rocking mechanism part that fits into the bolt. The swinging mechanism unit includes a rotatable male fitting cylinder that fits into the female fitting cylinder, a support plate fixed to the rear end and swingably supporting the arm mounting plate, and a male fitting cylinder. It consists of an advancing/retracting shaft that is inserted into the body and connected to the arm mounting plate via a link rod, and a small diameter threaded shaft is protruded from the tip of the advancing/retracting shaft, and an elastic cylinder is attached to this and a nut is screwed into it. A shoulder joint fitting for a mannequin, characterized in that a dowel is provided on one side of the facing surfaces of the rotating mechanism part and the swinging mechanism part, and a dowel hole into which the dowel fits is provided on the other side.