JP2018122071A - Joint structure held by magnetic force - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint structure that can be installed in a place that is difficult for an existing structure to be installed and does not lose holding force even when being moved repeatedly, in a joint structure of a doll body.SOLUTION: A structure holds a joint with magnetic force generated between a magnet fitted to each member and a metallic part instead of friction between an existing joint shaft and a bearing.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a holding method using a magnet of a joint of a doll body.

  The joint structure held by the friction between the joint shaft and the bearings found in conventional doll toys requires a suitable size to ensure strength and holding power, so it may be difficult to install in some cases, The holding power may be lost due to wear due to use.

  Provided is a joint structure that can be installed in a place where it is difficult to install with a conventional shaft joint and does not lose its holding force even if it is repeatedly moved.

  A magnet and a metal plate are installed on the contact surfaces of the members, and the joint is held by friction of the attracting surface by magnetic force.

Since the joint is held by the magnetic force, the size and location of the joint shaft can be set more freely than before, and the joint structure can be provided at a location where it is difficult to install the joint shaft itself.
In addition, the holding power is not lost due to wear even after repeated use.

Hereinafter, the best mode for carrying out the present invention will be described.
The shoulder joint part connects the shoulder joint base (2) of the upper body member (1) with the shoulder joint first member (3) and the shoulder joint second member (4), and the respective joint axes are the clavicle and shoulder in the human body. A movement simulating the movement of the shoulder by the scapula can be reproduced. The shoulder joint part of the upper body member is provided with a fan-shaped shoulder joint base (2) centering on the joint axis, and a fan-shaped metal plate (5 ). A magnet (6) is attached to the shoulder joint first member (3) at a position in contact with the metal plate, and a lifting prevention claw is provided at a position corresponding to the outer periphery of the fan-shaped base of the shoulder joint base (2). . Similarly, the above-described structure is also provided in the attachment portion between the shoulder joint first member (3) and the shoulder joint second member (4).
The joint member having the above structure is configured to hold the joint by magnetic force by connecting the metal plate and the magnet so as to be rotatable with a shaft.
The upper arm skeleton member has a joint for rotating the arm part, which is a cylindrical first member (8) connected to the shoulder joint and a columnar shape inserted into the first member (8) so as to be rotatable. In the structure consisting of two members (9), teeth are provided at the end of the cylinder of the first member, and teeth corresponding to this are provided on the outer periphery of the column of the second member. The attached magnet (10) and the metal screw (11) attached to the tip of the second member cylinder are engaged by a pulling force to hold the joint.
The upper arm part exterior (12) is slidably mounted about the upper arm skeleton member as an axis, and is held in place by a magnet (13) attached to the inner wall and a metal ring (14) attached to the upper arm skeleton member. When the joint is bent, it is slid to expose the elbow joint so that it can be bent deeper.
The fuselage is composed of a fuselage lower member (15) and a fuselage upper member (1) covering the fuselage, and a metal plate (16) is attached to the side of the fuselage lower member to guide the movement of the fuselage upper member. (17) is provided. The fuselage upper member (1) has a structure in which a magnet (18) is attached to the inner wall of the fuselage lower member in contact with the metal plate (16) and is slidably attached to the fuselage lower member.
The leg knee joint includes a thigh member (19), a shin member (20), and a knee joint support member (21). The knee joint support member (21) has a cylindrical base at one end. A magnet (22) is attached during installation, and a shaft (23) for attachment to the shin member is provided at the other end.
The thigh member (19) is provided with a groove (24) for sliding the cylindrical base of the joint support member on the side surface, and a metal plate (25) is attached to the bottom surface of the groove. A shaft (26) is provided at the portion corresponding to the knee joint. The tibial member is provided with a shaft hole (27) for receiving the shaft of the thigh member (19) at a portion corresponding to the knee joint, and a shaft hole for receiving the shaft of the joint support member at a position shifted to the upper front of the shaft hole for the knee joint. (28) is provided. By attaching the thigh member (19) and the shin member (20) so as to be rotatable by a shaft and attaching the joint support member (21) so as to be interlocked with the thigh member and the shin member by a shaft and a cylindrical base, This is a joint structure that can hold the knee joint.

  It is an exploded perspective view of the present invention.

DESCRIPTION OF SYMBOLS 1 Upper body member 2 Shoulder joint base 3 Shoulder joint 1st member 4 Shoulder joint 2nd member 5 Fan-shaped metal plate 6 Magnet 7 Lifting prevention nail 8 Upper arm 1st member 9 Upper arm 2nd member 10 Magnet 11 Metal screw 12 Upper arm Partial exterior 13 Magnet 14 Metal ring 15 Body lower member 16 Metal plate 17 Guide 18 Magnet 19 Thigh member 20 Tibial member 21 Knee joint support member 22 Magnet 23 Mounting shaft 24 Knee joint support member sliding groove 25 For thigh member Metal plate 26 Knee joint shaft 27 Knee joint shaft hole 28 Knee joint support member mounting shaft hole

Claims (4)

It is a joint structure of a doll that has two joint members that can be pivoted around an axis. A magnet, or a magnet and a metal plate, are attached to the surfaces where the members touch each other, so that the open joint can be held by magnetic force. A joint structure characterized by that.   A joint structure characterized by holding a state in which a cylindrical member having teeth on the outer periphery is inserted into a cylindrical member having teeth on the end so that the teeth mesh with each other.   A joint structure characterized in that a member attached with a magnet or metal plate on a side surface is slidably attached to a member attached with a magnet on an inner wall, and can be held by magnetic force.   A joint structure consisting of a skeletal member having a movable joint by a shaft and an interlocking joint support member, and a metal plate attached to the skeleton member and a magnet attached to the joint support member can hold the joint by magnetic force. A joint structure characterized by that.

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