JP7138608B2 - Doll body shoulder joint structure - Google Patents

Description

The present invention relates to a shoulder joint structure for a doll body.

The shoulder joint structure of a doll body described in Patent Document 1 is configured such that a joint member provided on an arm penetrates a ring-shaped covering made of a soft material and is connected to the shoulder of the body. The covering material covers the gap between the shoulder and the arm, and when the arm is moved, it is sandwiched between the shoulder and deforms appropriately, covering the gap between the shoulder and the arm without limiting the range of motion of the arm. .

Registered Utility Model No. 3185443

In the shoulder joint structure of the doll body described in Patent Document 1, the position of the shoulder at the base of the arm is substantially fixed. For example, when the arm is moved in front of the chest of the torso, the arm abuts against the edge of the shoulder on the front side of the chest of the torso and cannot be moved to the extent that the arm overlaps the chest of the torso. If the shoulders of the torso were scooped out to expand the range of motion of the arms, the covering material would grow and the unnaturalness would stand out.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a shoulder joint structure for a doll body that can expand the movable range of the arm.

A shoulder joint structure for a doll body according to the present invention includes a first joint member housed inside a body of a doll body and connected to the body, and a first joint member housed inside the body and connected to the first joint member. and a third joint member respectively connected to the second joint member and the arm of the doll body through an opening formed in the shoulder of the body, wherein the first joint member is connected to the body and the first joint member are rotatable about a first connecting portion to which the third joint member is connected so as to move away from the trunk axis of the torso in the shoulder width direction, and the second joint member is rotatable about a second connecting portion where the first joint member and the second joint member are connected so as to separate the third joint member from the trunk axis in the shoulder width direction It is characterized by Further, the shoulder joint structure of a doll body according to the present invention is connected to the body through the first joint member, the second joint member, and the third joint member through the opening formed in the shoulder of the body of the doll body. An arm and an annular covering member inserted into the opening of the shoulder of the body so as to be projectable, wherein the first joint member is a connecting portion where the body and the first joint member are connected. and the first joint member and the second joint member, the second joint member and the third joint member, and the third joint member and the arm are rotatably connected to each other. The third joint member is arranged to extend from the trunk axis of the trunk by a connecting portion where the trunk and the first joint member are connected, and by the connection between the first joint member and the second joint member. It is possible to separate in the shoulder width direction, and the connecting part is arranged on the front side of the covering member in the chest thickness direction, and is arranged inside the breast part of the doll body. there is

Further, in the shoulder joint structure of the doll body according to the present invention, the first joint member is configured to extend the second joint member and the third joint member forward of the trunk in the chest thickness direction with the first connecting portion as the center. It may be rotatable so as to move to the Further, in the shoulder joint structure for a doll body according to the present invention, the joint member may be rotatable about the connecting portion so as to move the arm forward in the chest thickness direction of the torso. .

Moreover, in the shoulder joint structure for a doll body according to the present invention, the first connecting portion may be configured by a ball joint. Moreover, in the shoulder joint structure for a doll body according to the present invention, the connecting portion may be configured by a ball joint.

Further, in the shoulder joint structure for a doll body according to the present invention, the first connecting portion may be arranged axially below the trunk axis with respect to the opening of the shoulder of the body. Further, in the shoulder joint structure for a doll body according to the present invention, the connecting portion may be arranged axially below the trunk axis with respect to the opening of the shoulder of the body. Further, in the shoulder joint structure for a doll body according to the present invention, the connecting portion may be arranged axially below the trunk axis with respect to the opening of the shoulder of the body.

Moreover, in the shoulder joint structure for a doll body according to the present invention, the first connecting portion may be arranged on the front side in the chest thickness direction with respect to the opening of the shoulder of the body. Moreover, in the shoulder joint structure for a doll body according to the present invention, the connecting portion may be arranged on the front side in the chest thickness direction with respect to the opening of the shoulder of the body.

Moreover, in the shoulder joint structure for a doll body according to the present invention, the first connecting part may be arranged inside the breast part or the pectoralis major muscle part of the doll body.

Moreover, the shoulder joint structure for a doll body according to the present invention may further include an annular covering member that is protrusively inserted into the opening of the shoulder of the body and that covers the third joint member. In addition, the shoulder joint structure for a doll body according to the present invention may further include an annular covering member that is protrusively and retractably inserted into the opening of the shoulder of the body.

ADVANTAGE OF THE INVENTION According to this invention, the shoulder-joint structure of the doll body which can expand the rotation range of an arm can be provided.

It is a perspective view of the upper body of the doll body for describing the embodiment of the present invention. 2 is an exploded perspective view of the upper body of the doll body of FIG. 1; FIG. FIG. 2 is a perspective view of the shoulder joint structure of the doll body of FIG. 1; FIG. 2 is a side view of the shoulder joint structure of the doll body of FIG. 1; 1. It is a front view which shows operation|movement of the shoulder joint structure of the doll body of FIG. FIG. 2 is a plan view showing the operation of the shoulder joint structure of the doll body of FIG. 1;

1 and 2 show the configuration of the upper body of a doll body for describing the embodiment of the present invention.

A doll body 1 shown in FIG. . The first joint member 6 , the second joint member 7 and the third joint member 8 , and the covering member 9 are provided for each pair of left and right arms 3 .

The torso 2 includes a frame member 11 arranged on the trunk axis A of the torso 2 , a front chest member 12 and a back chest member 13 . The front chest member 12 and the rear chest member 13 are assembled together, and the frame member 11 is housed inside the body 2 surrounded by the front chest member 12 and the rear chest member 13 . The chest rear side member 13 is fixed to the frame member 11 with screws or the like, and the chest front side member 12 assembled to the chest rear side member 13 is also fixed to the frame member 11 .

The arm 3 includes a shoulder member 14 forming the base of the upper arm. The shoulder member 14 is assembled with a member (not shown) that forms a portion ahead of the shoulder, such as an upper arm or a forearm.

The first joint member 6 and the second joint member 7 are housed inside the body 2 . The first joint member 6 is connected to a frame member 11 inside the body 2 , and the second joint member 7 is connected to the first joint member 6 .

The third joint member 8 is connected to the shoulder member 14 of the arm 3 . An opening 15 is formed at the shoulder of the body 2 , and the third joint member 8 is connected to the second joint member 7 through the opening 15 .

The covering member 9 is formed in an annular shape and is inserted into the opening 15 of the shoulder of the body 2 so as to be able to project and retract. A third joint member 8 connected to the second joint member 7 and the shoulder member 14 is inserted through the covering member 9 through the opening 15 , and the covering member 9 is a connecting portion between the third joint member 8 and the shoulder member 14 . covering the

3 and 4 show the shoulder joint structure of the doll body 1, and FIGS. 5 and 6 show the operation of the shoulder joint structure of the doll body 1. FIG.

The connecting portion 20 between the frame member 11 and the first joint member 6 is axially below the trunk axis A with respect to the shoulder opening 15 (see FIG. 1) of the body 2 and in the chest thickness direction with respect to the opening 15. The connecting part 22 between the second joint member 7 and the third joint member 8 is arranged at the shoulder of the body 2 facing the opening 15, and the first joint member 6 and the second joint member 6 are arranged on the front side of the chest. The connecting portion 21 with the joint member 7 is arranged between the connecting portion 20 and the connecting portion 22 .

A connecting portion 20 between the frame member 11 and the first joint member 6 is a so-called ball joint consisting of a socket 30 provided in the frame member 11 and a ball 31 provided at one end of the first joint member 6. , and the first joint member 6 is rotatable with respect to the frame member 11 in a precession motion. The ball may be provided on the frame member 11 side, and the socket may be provided on the first joint member 6 side.

The connecting portion 21 between the first joint member 6 and the second joint member 7 is provided at one end portion of the second joint member 7 and the shaft portion 32 provided at the other end portion of the first joint member 6. The second joint member 7 is rotatable with respect to the first joint member 6 with the shaft portion 32 as a rotation axis. The bearing portion may be provided on the first joint member 6 side, and the shaft portion may be provided on the second joint member 7 side.

The connecting portion 22 between the second joint member 7 and the third joint member 8 includes a socket 34 provided at the other end of the second joint member 7 and a socket 34 provided at one end of the third joint member 8. The third joint member 8 is configured as a so-called ball joint including a ball 35, and the third joint member 8 is rotatable with respect to the second joint member 7 in a precession motion. A ball may be provided on the second joint member 7 side, and a socket may be provided on the third joint member 8 side.

The connecting portion 23 between the third joint member 8 and the shoulder member 14 of the arm 3 is formed by a bearing portion 36 provided at the other end of the third joint member 8 and a shaft portion 37 provided on the shoulder member 14. The shoulder member 14 is rotatable with respect to the third joint member 8 with the shaft portion 37 as a rotation axis. In addition, the shaft portion may be provided on the third joint member 8 side, and the bearing portion may be provided on the shoulder member 14 side.

The arm 3 is swung back and forth and up and down with respect to the body 2 by rotating the shoulder member 14 with respect to the third joint member 8 and rotating the third joint member 8 with respect to the second joint member 7 .

As shown in FIGS. 5 and 6 , the first joint member 6 is connected to the second joint member 7 by using a connecting portion 20 connected to the frame member 11 configured as a ball joint as a fulcrum. It is rotatable with respect to the frame member 11 so as to separate from the trunk axis A in the shoulder width direction. Such rotation of the first joint member 6 causes the third joint member 8 to move away from the trunk axis A in the shoulder width direction.

The second joint member 7 also has a connection portion 21 with the first joint member 6 as a fulcrum so that the connection portion 22 with the third joint member 8 is separated from the trunk axis A of the trunk 2 in the shoulder width direction. It is rotatable with respect to one joint member 6 . By such rotation of the second joint member 7, the third joint member 8 is further moved away from the trunk axis A in the shoulder width direction.

By moving the third joint member 8 away from the trunk axis A in the shoulder width direction, the connecting portion 23 between the third joint member 8 and the shoulder member 14 of the arm 3 moves to the shoulder opening 15 of the body 2 . depart from As a result, the upper arm portion of the arm 3 extending ahead of the shoulder member 14 is less likely to interfere with the body 2 or the edge of the opening 15, and the movable range of the arm 3 is expanded. For example, when moving the arm 3 in front of the chest of the body 2 , the arm 3 can be moved so that it overlaps the chest of the body 2 .

Further, the first joint member 6 rotates with respect to the frame member 11 so as to move the third joint member 8 forward in the chest-thickness direction, with a connection portion 20 configured as a ball joint with the frame member 11 being a fulcrum. It is possible. By such rotation of the first joint member 6, the connecting portion 23 between the third joint member 8 and the shoulder member 14 of the arm 3, that is, the portion that becomes the fulcrum of the swing of the arm 3 is moved to the chest portion of the opening 15 of the shoulder of the body 2. Located close to the front edge. As a result, the upper arm portion of the arm 3 extending ahead of the shoulder member 14 is less likely to interfere with the body 2 or the edge of the opening 15 on the front side of the chest, and the movable range of the arm 3 is further expanded. In other words, the movable range when moving the arm 3 forward of the body 2 is expanded.

By arranging the connecting portion 20, which serves as a fulcrum for the rotation of the first joint member 6, on the front side of the chest in the chest thickness direction with respect to the opening 15, compared to the case where it is on the rear side of the chest in the chest thickness direction, , the arm 3 can be moved forward of the torso 2 to a greater extent. Further, the connecting portion 20, which serves as a fulcrum for the rotation of the first joint member 6, is arranged in the chest portion axially below the trunk axis A with respect to the shoulder opening 15 of the body 2. The turning radius of the joint member 8 can be enlarged. The first joint member 6 is rotated in a limited space inside the body 2, and the rotation angle of the first joint member 6 is naturally limited, but the rotation radius of the third joint member 8 is enlarged. Accordingly, the displacement amount of the third joint member 8 can be increased with respect to the predetermined rotation angle of the first joint member 6 .

In addition, if the connecting portion 20 serving as the pivotal fulcrum of the first joint member 6 is provided axially above the trunk axis A with respect to the opening 15 of the shoulder of the body 2, the space for the connecting portion 20 is secured. Since the upper part of 2 (the position near the clavicle in the human body) becomes thicker in the chest thickness direction, the appearance is spoiled. Therefore, by arranging the connecting part 20, which serves as the pivot point of the first joint member 6, on the chest of the body 2, the body 2 does not have an unnatural bulge, and the bulge of the breast is used to A space for accommodating the connecting part 20 can be secured inside the thoracic breast.

With respect to the movement of the third joint member 8, the covering member 9 is dragged by the third joint member 8 and protrudes from the opening 15 at the shoulder of the body 2, or sinks into the opening 15 by coming into contact with the third joint member 8. , the state where the connecting portion 23 between the third joint member 8 and the shoulder member 14 is covered with the covering member 9 is maintained. Thereby, the natural appearance can be maintained while expanding the movable range of the arm 3 of the doll body 1. - 特許庁

Further, as described above, the first joint member 6 and the frame member 11, the second joint member 7 and the third joint member 8 are connected as ball joints, and the first joint member 6 and the second joint member 7 and the third joint member 8 are connected. Although the embodiment of the present invention has been described assuming that the connection between the shoulder member 14 and the shoulder member 14 is a shaft and a bearing, the structure of the connection portion of the shoulder joint structure of the present invention is not limited to the above.

1 doll body 2 torso 3 arm 6 first joint member 7 second joint member 8 third joint member 9 covering member 11 frame member 12 front chest member 13 rear chest member 14 shoulder member 15 opening 20 connecting portion 21 connecting portion 22 connecting Part 23 Connection part A Trunk axis

Claims (4)

A shoulder joint structure of a doll body,
an arm connected to the body through a first joint member, a second joint member, and a third joint member through an opening formed in the shoulder of the body of the doll;
an annular covering member that is protrusively inserted into the opening of the shoulder of the body;
with
The first joint member is rotatable around a connecting portion where the body and the first joint member are connected,
The first joint member and the second joint member, the second joint member and the third joint member, and the third joint member and the arm are rotatably connected,
The third joint member has a connecting portion where the trunk and the first joint member are connected, and a connection between the first joint member and the second joint member. it is possible to depart from
The shoulder joint structure of a doll body, wherein the connecting part is arranged on the front side of the covering member in the chest thickness direction and is arranged inside the breast part of the doll body. The shoulder joint structure for a doll body according to claim 1,
The shoulder joint structure of a doll body, wherein the joint member is rotatable about the connecting portion so as to move the arm forward in the chest thickness direction of the body. A shoulder joint structure for a doll body according to claim 2,
The shoulder joint structure of a doll body in which the connecting portion is configured by a ball joint. A shoulder joint structure for a doll body according to any one of claims 1 to 3,
The shoulder joint structure of a doll body, wherein the connecting portion is arranged axially below the trunk axis with respect to the opening of the shoulder of the body.

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