JP3077758U - Doll's elbow joint structure - Google Patents

Abstract

(57) [Summary] An elbow joint structure of a doll with a realistic feeling. (A) The upper arm 1 and the forearm 2 are connected via the elbow joint member 4 (b) The elbow joint member 4 is attached rotatably around the central axis of the upper arm 1 and the forearm (3) The forearm 2 is bent inward with respect to the upper arm 1 and turned around the rotating shaft 11 orthogonal to the center axis of the part 2. The elbow joint member 4 is formed so as to protrude outside the elbow

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an elbow joint structure of a doll in which an upper arm and a forearm are connected via an elbow joint member.

[0002]

[Prior art]

 In general, the elbow joints of the arms of the doll include those formed integrally with the upper arm and the forearm, and those formed separately. The one formed integrally includes a soft type in which the arm is bent and a hard type in which the arm is not bent. Further, those formed separately are further divided into a type in which the upper arm and the forearm are directly rotatably connected and a type in which the upper arm and the forearm are connected via an elbow joint member.

[0003] Except for a rigid type in which the upper arm and the forearm are integral, the arm is configured to bend so as to perform the same movement as a person.

[0004]

[Problems to be solved by the invention]

 By the way, when a person's elbow is bent inward, the bones are relatively sharp, but with a conventional doll, when the arm is bent inward from the elbow, the elbow becomes rounded. It will be in a state of being left. Therefore, even when the clothes were put on, the elbows of the clothes became round, which was unnatural.

An object of the present invention is to solve the above problems and to provide a realistic doll elbow joint structure.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the elbow joint structure of the doll according to the present invention has the following requirements. (A) The upper arm and the forearm are connected via an elbow joint. (B) The elbow joint is attached rotatably around the center axis of the upper arm, and is connected to the center axis of the forearm. (C) When the forearm is bent inward with respect to the upper arm and is turned, the elbow joint member is attached to the outside of the elbow. Be formed to protrude

The elbow joint member includes a shaft portion and a substantially circular plate portion, and a part of a peripheral edge of the plate portion is tapered, and the shaft portion is connected to the upper arm portion via an engagement piece. The plate portion is engaged with an annular groove formed on the inner peripheral surface of the forearm, the plate portion is fitted into a fitting groove formed inward and outward at an end corresponding to the elbow of the forearm portion, and the tapered portion is directed outward. It is preferable that it is configured to be rotatably fitted.

[0008]

[Embodiment of the invention]

 In FIG. 1, reference numeral 1 denotes an upper arm of a doll, 2 denotes a forearm, and 3 denotes a hand 3.

The elbow joint structure between the upper arm 1 and the forearm 2 will be described. The upper arm 1 and the forearm 2 are each formed from a synthetic resin so as to be hollow, and via an elbow joint member 4 also made of a synthetic resin. Are linked. An annular groove 5 is formed in the middle inner peripheral surface of the upper arm 1. At the end of the forearm 2 corresponding to the elbow, a fitting groove 6 is formed in the inside and outside directions, and a bearing hole 7 shown in FIG. The upper arm 1 and the forearm 2 are formed in advance in a state of being vertically divided into two parts, and are integrally bonded to each other after the joint members are attached.

The elbow joint member 4 includes a shaft portion 4a and a plate portion 4b. A narrow portion 8 is formed at a tip of the shaft portion 4a, and an engaging piece 9 is fitted to the narrow portion 8. Although the plate portion 4b is substantially circular, a tapered tapered portion 10 is formed on a part of the periphery thereof so as to protrude. A pivot 11 is formed at the center of the plate 4b.

The engaging piece 9 of the shaft 4 a of the elbow joint member 4 is fitted in the annular groove 5 of the upper arm 1. The plate portion 4b fits into the fitting groove 6 of the forearm portion 2, and the rotating shaft 11 of the plate portion 4b is supported by a bearing hole 7 inside the fitting groove 6. As a result, the elbow joint member 4 is rotatable around the center axis of the upper arm 1 and is rotatable inward and outward around a rotation shaft 11 orthogonal to the center axis of the forearm 2.

In the above configuration, the forearm 2 can be turned around the central axis with respect to the upper arm 1 and can be bent and turned inward and outward. When the forearm 2 is bent inward with respect to the upper arm 1 and turned, the tapered portion 10 of the elbow joint member 4 projects outward of the elbow, which is a connecting portion between the upper arm 1 and the forearm 2. . Therefore, if the elbow is bent while the doll has the clothes 12, the corners of the elbow are raised as shown in FIG.

The forearm 2 and the hand 3 are also connected via a joint member 13. Also in this case, the connection may be performed using a joint member having the same structure as the above-described joint member and including the shaft portion 13a and the plate portion 13b.

[0014]

[Effect of the invention]

 According to the first aspect of the present invention, the elbow joint member is rotatably mounted around the central axis of the upper arm, and pivots inward and outward around a rotational axis orthogonal to the central axis of the forearm. Since the elbow joint member is attached to itself and is formed so as to protrude outward from the elbow when the forearm is bent inward with respect to the upper arm and rotated, the doll is to be dressed. If the elbow is bent with the elbow bent, the elbow will not be rounded and will be sharp, giving a sense of realism as if a person were wearing clothes.

[0015] According to the invention of claim 2, the elbow joint member is rotatably mounted around the central axis of the upper arm, and is moved inward and outward around a rotational axis orthogonal to the central axis of the forearm. It can be mounted rotatably.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a structure of an elbow joint of a doll according to the present invention.

FIG. 2 is an explanatory view of a main part of the elbow joint structure as viewed from the outside.

FIG. 3 is an explanatory view showing a state in which the elbow is bent and rotated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper arm part 2 Forearm part 4 Elbow joint member 10 Tapered part

Claims (2)

[Utility model registration claims] An elbow joint structure for a doll, characterized by having the following requirements. (B) the upper arm and the forearm are connected via an elbow joint; and (b) the elbow joint is rotatably mounted around the center axis of the upper arm. (C) The elbow joint member projects outward from the elbow when the forearm is bent inward with respect to the upper arm and rotated about the orthogonal rotation axis. Be formed to 2. The elbow joint member includes a shaft portion and a substantially circular plate portion, and a part of a peripheral edge of the plate portion is tapered,
The shaft portion is engaged with an annular groove formed on the inner peripheral surface of the upper arm portion through an engagement piece, and the plate portion is fitted in an end portion corresponding to an elbow of the forearm portion in an inward / outward direction. 2. The elbow joint structure for a doll according to claim 1, wherein said elbow joint structure is rotatably fitted in said mating groove with said tapered portion outward.