JP2017169832A - Doll toy wrist joint structure, and doll toy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a doll toy wrist joint structure and a doll toy that are capable of increasing the range of rotation of a hand part relative to an arm part in a desired direction.SOLUTION: A ball joint part 45 has: a shaft part 352 protruding from a second end 422 of a joint part main body 42; a ball part 351 at an end of the shaft part 352; and a ball housing part 341 provided in the hand part 30 to rotatably house the ball part 351. The hand part 30 is rotatable about the ball part 351 of the ball joint part 45, and the joint part main body 42 provided with the ball joint part 45 is rotatable about a rotation shaft 44. In addition, the rotation shaft 44 is eccentric to a central axis CL1 on the hand part 30 side in a lower arm part 22, so that the rotation range to the position where the hand part 30 comes into contact with the lower arm part 22 when the hand part 30 is rotated in the direction of eccentricity can be extended.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a wrist joint structure of a doll toy and a doll toy.

In the doll toy described in Patent Document 1, in the wrist joint structure in which the hand part is connected to the arm part, the ball part provided in the hand part is accommodated in the accommodating part provided inside the arm part.
Thereby, since the ball | bowl part and an accommodating part comprise the ball joint mechanism, the hand part can rotate with respect to an arm part as for the doll toy described in patent document 1. FIG.

Japanese Utility Model Publication No.54-316

However, in the doll toy described in Patent Document 1, the range of rotation of the hand side to the back side and the palm side with respect to the arm portion is limited to the opening edge portion at the distal end portion of the arm portion to which the hand portion is connected. Until the back or palm of the department comes into contact.
Therefore, the doll toy described in Patent Document 1 has a small rotation range of the hand relative to the arm when the diameter of the arm is increased. In particular, in the doll toy described in Patent Document 1, when the rotation center of the hand portion is on the axis of the arm portion, the rotation range toward the back side and the rotation range toward the palm side are similarly small. Become.

  In recent years, the variety of postures required for doll toys has been increasing, but the posture may be limited due to the limitation of the rotation range of the hand relative to the arm. For this reason, it is desired to increase the rotation range of the hand portion in a predetermined direction with respect to the arm portion. Although the rotation range of the hand portion can be enlarged by notching the opening edge portion of the arm portion corresponding to the desired rotation direction, the appearance of the arm portion is deteriorated.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a wrist joint structure for a doll toy and a doll toy that can increase the rotation range of the hand portion in a desired direction with respect to the arm portion.

  The wrist joint structure of a doll toy according to the present invention has a cylindrical arm part and a hand part connected to an end part of the arm part via a joint part, and the joint part is the arm part. A joint end body composed of a first end housed inside the arm portion, a second end portion that can be exposed to the outside of the arm portion, a pivot shaft connecting the arm portion and the joint portion body, A ball joint portion interposed between the hand portion and the second end portion of the joint portion main body, and the rotation axis intersects a central axis of the arm portion on the hand portion side. It is characterized by being arranged on the inner surface side of the arm part from the central axis of the arm part.

  In the wrist joint structure for a doll toy according to the present invention, the ball joint portion projects from the second end portion along a plane intersecting the rotation axis of the rotation shaft. And a ball portion provided at an end portion of the shaft portion, and a storage portion provided in the hand portion and rotatably receiving the ball portion.

  In the wrist joint structure of the doll toy according to the present invention, the arm portion is connected to the trunk portion, and the rotation shaft is disposed on the opposite side of the arm portion from the trunk portion. May be.

  In the wrist joint structure of a doll toy according to the present invention, the joint portion has an annular member accommodated in the arm portion, and the rotation shaft is connected to the annular member accommodated in the arm portion. The annular member may be rotatable with respect to the arm portion along the inner surface of the arm portion.

  In addition, a doll toy according to the present invention has the wrist joint structure described above.

  ADVANTAGE OF THE INVENTION According to this invention, the wrist joint structure and doll toy of a doll toy which can expand the rotation range of the hand part with respect to an arm part to the desired direction can be provided.

It is a perspective view which shows the whole structure of the doll toy which is embodiment of this invention. It is a disassembled perspective view of the wrist joint structure which is embodiment of this invention. (A)-(C) is sectional drawing which shows the motion of the hand part of the doll toy which is embodiment of this invention, (D) is a perspective view which shows the state which attached the hand part to the ground, (E) FIG. 5 is a cross-sectional view showing a state in which the hand is rotated around the central axis of the lower arm. It is sectional drawing which shows the modification of the wrist joint structure which is embodiment of this invention. It is sectional drawing which shows another modification of the wrist joint structure which is embodiment of this invention.

[Embodiments of the present invention]
FIG. 1 is a perspective view showing the overall configuration of a doll toy 10 for explaining an embodiment of the present invention.

  A doll toy 10 shown in FIG. 1 has a body part 12, and a head part 11 on the upper side of the body part 12. In addition, a pair of thighs 14, legs 15, and feet 16 are provided below the body 12 via the waist 13.

Arm portions 20 are connected to the left and right shoulder portions of the body portion 12. The arm part 20 has an upper arm part 21 and a lower arm part 22. The upper arm portion 21 is pivotally connected around a rotation center along a line connecting the left and right shoulders at the base end portion. As for the lower arm part 22, the base end part is connected to the front-end | tip part of the upper arm part 21 so that rotation is possible.
A hand portion 30 is rotatably connected to a tip portion of the arm portion 20 via a wrist joint portion (joint portion) 41.
Here, since the arm portion 20 includes the upper arm portion 21 and the lower arm portion 22, the hand portion 30 is connected to the distal end of the lower arm portion 22 via the wrist joint portion 41. Thereby, the wrist joint structure 40 for connecting the hand part 30 to the arm part 20 is formed.

  As shown in FIG. 2, the wrist joint structure 40 includes a cylindrical lower arm portion 22, a hand portion 30, and a wrist joint portion 41 that rotatably connects the hand portion 30 to the distal end portion of the lower arm portion 22. Have

The wrist joint portion 41 includes a joint portion main body 42 that is rotatably attached to the hand portion 30, and an annular member 43 for attaching the joint portion main body 42 to the lower arm portion 22 to be rotatable.
The joint body 42 has a first end 421 housed inside the lower arm 22 and a second end 422 that can be exposed to the outside of the lower arm 22. The first end 421 side of the joint body 42 has a substantially partial spherical shape, and the cross-sectional radius on the lower arm 22 side is smaller than the cross-sectional radius on the second end 422 side. Further, the second end 422 side of the joint body 42 has a cylindrical shape or a substantially partial spherical shape.
Here, the “substantially partial spherical shape” does not need to be a part of a strict spherical shape but means that it is similar to a spherical shape.

The joint body 42 is provided with a rotation shaft 44 that connects the lower arm portion 22 and the joint body 42. When the joint body 42 is connected to the lower arm portion 22, the rotation shaft 44 extends along a plane intersecting the central axis CL <b> 1 on the hand portion 30 side of the lower arm portion 22 and the center of the lower arm portion 22. It arrange | positions rather than the axis line CL1 at the inner surface 23 side of the lower arm part 22. FIG. That is, the rotation axis CL2 of the rotation shaft 44 is parallel to the straight line L1 intersecting with the center axis CL1 in a plane including the center axis CL1, and closer to the inner surface 23 side of the lower arm portion 22 than the center axis CL1. They are offset. As a result, the central axis CL1 and the rotation axis CL2 of the rotation shaft 44 are arranged so as to be in a twisted position. Further, in the present embodiment, when the joint part T inner 42 is connected to the lower arm part 22, the rotation axis CL <b> 2 of the rotation shaft 44 is positioned in the vicinity of the end part of the lower arm part 22 on the hand part 30 side. To do.
Here, the inner side surface 23 is an inner surface of the cylindrical lower arm portion 22 and can be a portion located on the back 31 side of the hand portion 30.

Further, in the present embodiment, the cylindrical lower arm portion 22 having a substantially uniform diameter dimension is illustrated, but for example, the hand portion 30 side has a larger diameter than the upper arm portion 21 side, and an eccentric stepped cylinder. The lower arm portion 22 having a shape may be used. In this case, the center axis CL1 on the hand part 30 side in the lower arm part 22 is eccentric with respect to the center axis line on the arm part 21 side in the lower arm part 22.
That is, the center axis line CL1 indicates the center axis line of the lower arm portion 22 where the rotation shaft 44 is provided.

  The rotation shaft 44 is a member having a circular cross section, and can be a cylindrical member or a circular tube member. The rotation shaft 44 can be provided in a direction intersecting with the central axis CL1, for example, a direction orthogonal thereto, at an eccentric position that does not intersect with the central axis CL1 on the hand portion 30 side in the lower arm portion 22. That is, when the joint body 42 is connected to the lower arm portion 22 on the joint body 42, the rotation shaft 44 twists between the rotation axis CL2 and the center axis CL1 on the hand 30 side of the lower arm portion 22. It is provided in the position used as this position. The pivot shaft 44 can be provided so as to penetrate the joint body 42, but can also be separately implanted on both sides of the joint body 42.

The joint body 42 is connected to the lower arm portion 22 via the annular member 43. The annular member 43 is an annular member, and is provided with a pair of bearing holes 431 through which the rotation shaft 44 of the joint portion main body 42 passes. The bearing hole 431 is a circular through hole having an outer diameter that is equal to or slightly larger than the outer diameter of the rotating shaft 44.
Thereby, the joint part main body 42 can rotate around the rotation shaft 44 with respect to the annular member 43 and can be fixed at a desired position.

On the other hand, a groove portion 24 that rotatably holds the annular member 43 is provided on the inner side surface 23 of the distal end portion of the lower arm portion 22 on the hand portion 30 side. The width of the groove 24 in the direction of the central axis CL <b> 1 is the same as or slightly wider than the width of the annular member 43. The inner diameter of the groove 24 is the same as or slightly larger than the outer diameter of the annular member 43.
Thereby, the annular member 43 can be rotated inside the lower arm portion 22 and can be fixed at a desired position.

  A ball joint portion 45 is provided on the end surface of the joint body 42 on the second end 422 side. The ball joint portion 45 includes a ball portion (sphere portion) 451 that is a sphere, and a shaft portion 452 that connects the ball portion 451 to the joint portion main body 42. The shaft portion 452 protrudes along a plane that intersects the rotation axis CL2 of the rotation shaft 44 from the end surface on the second end side. That is, the shaft portion 452 is arranged on the center axis line CL1 on the hand portion 30 side of the lower arm portion 22 by appropriately rotating the joint portion main body 42 around the rotation shaft 44 with respect to the lower arm portion 22. Or arranged along the central axis CL1. Note that the outer diameter of the shaft portion 452 is smaller than the outer diameter of the ball portion 451.

  On the other hand, the wrist side end surface 33 of the hand portion 30 is provided with a ball joint housing portion 34 for housing the ball joint portion 45. The ball joint housing portion 34 includes a ball housing portion (housing portion) 341 that houses the ball portion 451 and a tapered portion 342 that houses the shaft portion 452. The ball accommodating portion 341 is a spherical concave portion, and the inner diameter thereof is the same as or slightly larger than the outer diameter of the ball portion 451.

Further, the tapered portion 342 has a large inner diameter on the wrist side, and is provided in a truncated cone shape whose diameter decreases toward the ball housing portion 341. The inner diameter of the tapered portion 342 at the boundary between the tapered portion 342 and the ball housing portion 341, that is, the inner diameter of the opening of the ball housing portion 341 is smaller than the outer diameter of the ball portion 451 and larger than the outer diameter of the shaft portion 452. .
For this reason, the hand part 30 can be attached to the joint part main body 42 by pushing the ball part 451 into the ball accommodating part 341 from the taper part 342.

As a result, the hand portion 30 is rotatable with respect to the joint portion main body 42 in any direction including the upper 31 side and the palm 32 side around the ball portion 451 (in the direction of arrow A in FIG. 2). That is, when the hand portion 30 is rotated with respect to the joint portion main body 42, the hand portion 30 can be rotated within a range in which the shaft portion 452 does not interfere with the tapered portion 342.
Further, the hand portion 30 can be rotated 360 degrees in the arrow B direction around the ball portion 451.

Next, the movement of the hand part 30 with respect to the lower arm part 22 will be described.
3A shows a state in which the hand portion 30 extends straight in the direction of the central axis CL1 of the lower arm portion 22 on the hand portion 30 side. In this state, the shaft portion 452 provided in the ball joint portion 45 in the wrist joint portion 41 extends downward along the central axis CL1.
FIG. 3B shows a state where the hand portion 30 is rotated toward the back side (in the direction of arrow A1 in FIG. 3B). In this state, since the rotation angle is small, the shaft portion 452 has not yet contacted the tapered portion 342. For this reason, the shaft portion 452 still extends downward along the central axis CL1.

  FIG. 3C shows a state where the hand portion 30 is further turned to the back side and turned to the limit. In this state, since the rotation angle is large, the shaft portion 452 is in contact with the tapered portion 342. Therefore, the shaft portion 452 is pushed by the taper portion 342 and rotates, and the joint body 42 rotates about the rotation shaft 44 in the direction of arrow A2 in FIG. And if the back 31 of the hand part 30 contact | abuts to the lower arm part 22, rotation will be controlled.

FIG. 3D shows a state in which the palm 30 is attached to a flat surface such as the ground 17 by rotating the hand portion 30 as shown in FIG. Such a situation occurs, for example, when the user crawls and puts his hand to reach all fours.
FIG. 3E shows a state in which the hand 30 is rotated around the central axis CL1 on the hand 30 side of the lower arm 22. By rotating the hand portion 30 in the direction of arrow B about the shaft portion 452 of the ball joint portion 45, the hand portion 30 can be rotated 360 degrees with respect to the lower arm portion 22.

  In the wrist joint structure 40 of this embodiment, the hand part 30 is connected to the cylindrical lower arm part 22 via the wrist joint part 41. The wrist joint portion 41 includes a joint portion main body 42 in which the first end portion 421 is accommodated inside the lower arm portion 22 and the second end portion 422 is exposed outside the lower arm portion 22, the lower arm portion 22, and the joint. A pivot shaft 44 that couples the body part 42, and a ball joint part 45 provided at the second end 422 of the joint body 42. The rotation shaft 44 is along a plane intersecting the central axis CL1 of the lower arm portion 22 on the hand portion 30 side, and is closer to the inner side surface 23 of the lower arm portion 22 than the central axis CL1 of the lower arm portion 22. Arranged eccentrically.

  For this reason, when the hand part 30 is rotated with respect to the lower arm part 22, the hand part 30 can be rotated around the ball part (ball part) 351 of the ball joint part 45 and the ball joint part 45. The joint part main body 42 provided with is rotatable about the rotation shaft 44. At this time, the pivoting shaft 44 is decentered from the central axis CL1 on the hand portion 30 side of the lower arm portion 22 toward the inner side surface 23 side, whereby the joint body 42 is pivoted around the pivoting shaft 44 to thereby move the ball. The joint part 45 can be moved in a direction protruding from the tip of the lower arm part 22. Further, since the rotation shaft 44 is decentered from the central axis CL1 to the inner surface 23 side, the second end 422 side of the joint body 42 has a larger turning radius than when the rotation shaft 44 is on the central axis CL1. It will turn. As a result, the second end portion 422 side of the joint portion main body 42 is largely pulled out (exposed) from the end portion of the lower arm portion 22 on the hand portion 30 side, and the ball joint portion 45 protrudes from the tip of the lower arm portion 22. It becomes possible to move in the direction. In other words, in this embodiment, the rotation shaft 44 is connected to the joint so that the rotation axis CL2 of the rotation shaft 44 and the center axis CL1 on the hand portion 30 side of the lower arm portion 22 are in a twisted position. Since the rotation axis CL2 of the rotation shaft 44 is provided in the vicinity of the end portion of the lower arm portion 22 on the hand portion 30 side, the rotation axis 44 is provided on the second end portion 422 side of the joint portion main body 42. The ball portion 351 of the provided ball joint portion 45 has a lower arm portion 22 hand compared to the case where the rotation shaft 44 is provided so that the rotation axis CL2 of the rotation shaft 44 and the center axis CL1 intersect. It is possible to be further separated from the end on the part 30 side. Therefore, when the hand portion 30 is rotated outward from the lower arm portion 22, the rotation range until the hand portion 30 comes into contact with the lower arm portion 22 is expanded. Thereby, for example, it becomes possible to take a posture of crawling and putting hands on all fours. Further, the side surface of the joint body 42 is exposed between the hand part 30 and the lower arm part 22 that are largely rotated. However, since the joint body 42 has a cylindrical shape or a substantially partial spherical shape, the appearance is deteriorated. There is no. Even when the diameter of the lower arm portion 22 is increased, the rotation range of the hand portion 30 relative to the lower arm portion 22 can be expanded.

In the wrist joint structure 40 according to the present embodiment, the ball joint portion 45 includes a shaft portion 352 protruding from the second end portion 422 of the joint portion main body 42 and a ball provided at the end portion of the shaft portion 352. And a ball storage portion 341 that is provided in the hand portion 30 and rotatably receives the ball portion 351.
For this reason, by accommodating the ball part 351 at the tip of the shaft part 352 of the joint part main body 42 in the ball accommodating part 341 of the hand part 30, the hand part 30 is supported to be rotatable with respect to the lower arm part 22. The

Further, in the wrist joint structure 40 according to the present embodiment, the wrist joint portion 41 has an annular member 43 accommodated in the lower arm portion 22, and the rotation shaft 44 is an annular member accommodated in the lower arm portion 22. 43. The annular member 43 is rotatable with respect to the lower arm portion 22 along the inner surface 23 of the lower arm portion 22.
For this reason, since the joint part main body 42 connected to the annular member 43 via the rotation shaft 44 can be rotated with respect to the lower arm part 22, the hand part 30 attached to the joint part main body 42 is the lower arm. It can be easily rotated with respect to the portion 22.

Further, the doll toy 10 according to the present embodiment includes the wrist joint structure 40 described above.
For this reason, the hand part 30 of the doll toy 10 can expand a rotation range in a desired direction with respect to the lower arm part 22. Along with this, for example, it becomes possible to take a posture of crawling and putting hands on all fours.

The wrist joint structure and the doll toy of the doll toy of the present invention are not limited to the above-described embodiments, and appropriate modifications and improvements can be made.
For example, in the above-described embodiment, the case where the wrist joint portion 41 includes the annular member 43 that supports the rotation shaft 44 and is rotatable along the inner surface of the lower arm portion 22 is illustrated (see FIG. 2). ). In addition, as in the wrist joint structure 40 </ b> A shown in FIG. 4, the rotation shaft 44 can be directly arranged at the distal end portion of the lower arm portion 22 without providing the annular member 43.
Even if it does in this way, the effect | action and effect similar to embodiment mentioned above can be acquired.

In the above-described embodiment, the case where the shaft portion 452 and the ball portion 451 are provided in the joint portion main body 42 and the ball accommodating portion 341 that accommodates the ball portion 451 is provided in the hand portion 30 is illustrated (see FIG. 2). . In addition, as shown in the wrist joint structure 40 </ b> B shown in FIG. 5, the ball housing portion 46 can be provided in the joint body 42, and the ball portion 351 and the shaft portion 352 can be provided in the hand portion 30.
Even if it does in this way, the effect | action and effect similar to embodiment mentioned above can be acquired. That is, the pivot shaft 44 is provided in the joint body 42 so that the pivot axis CL2 of the pivot shaft 44 and the central axis CL1 on the hand 30 side of the lower arm portion 22 are in a twisted position. Since the rotation axis CL2 of the rotation shaft 44 is the same in that the rotation axis 44 is located near the end of the lower arm portion 22 on the hand portion 30 side, the second end portion of the joint portion main body 42 is the same. The opening of the ball accommodating portion 46 provided on the 422 side (the ball portion 351 of the hand portion 30 is inserted from the opening) is such that the rotation axis CL2 of the rotation shaft 44 and the center axis CL1 intersect. Compared to the case where the rotation shaft 44 is provided, the lower arm portion 22 can be further separated from the end portion on the hand portion 30 side. As a result, the rotation range for the lower arm portion 22 of the hand portion 30 can be expanded.

10 doll toy 12 body 22 lower arm (arm)
23 inner surface 30 hand part 341 ball accommodating part (accommodating part)
351 Ball (ball)
352 Shaft 40, 40A, 40B Wrist joint structure 41 Wrist joint (joint)
42 joint part main body 421 first end part 422 second end part 43 annular member 44 rotation shaft 45 ball joint part CL1 central axis CL2 rotation axis

The wrist joint structure of a doll toy according to the present invention has a cylindrical arm part and a hand part connected to an end part of the arm part via a joint part, and the joint part is the arm part. A joint end body composed of a first end housed inside the arm portion, a second end portion that can be exposed to the outside of the arm portion, a pivot shaft connecting the arm portion and the joint portion body, A ball joint portion interposed between the hand portion and the second end portion of the joint portion main body, and the rotation axis intersects a central axis of the arm portion on the hand portion side. It is characterized by being arranged on the inner surface side of the arm part from the central axis of the arm part. Further, the wrist joint structure of the doll toy according to the present invention has a cylindrical arm part and a hand part connected to an end part of the arm part via a joint part, and the joint part includes A joint body composed of a first end housed inside the arm, a second end exposed to the outside of the arm, and a pivot shaft connecting the arm and the joint body. A ball joint portion interposed between the hand portion and the second end portion of the joint portion main body, wherein the pivot shaft is relative to a central axis of the arm portion on the hand portion side. Along the intersecting plane, and disposed closer to the inner surface side of the arm part than the central axis of the arm part, the joint part has an annular member accommodated in the arm part, and the pivot shaft is The annular member is connected to an annular member housed in the arm portion, and the annular member is rotatable with respect to the arm portion along an inner surface of the arm portion. And characterized in that.

Claims (5)

A cylindrical arm,
A hand portion connected to an end portion of the arm portion via a joint portion;
The joint is
A joint body comprising a first end housed inside the arm and a second end exposed to the outside of the arm;
A pivot shaft connecting the arm and the joint body;
A ball joint portion interposed between the hand portion and the second end portion of the joint body, and
The rotation axis is along a plane intersecting the central axis of the arm portion on the hand side, and is arranged on the inner surface side of the arm portion with respect to the central axis of the arm portion. Wrist joint structure. The wrist joint structure of a doll toy according to claim 1,
The ball joint portion is
A shaft projecting along a plane intersecting the rotation axis of the rotation shaft from the second end;
A ball portion provided at an end of the shaft portion;
A wrist joint structure for a doll toy, comprising: a receiving portion provided in the hand portion and rotatably receiving the ball portion. The wrist joint structure of a doll toy according to claim 1 or 2,
The arm part is connected to the body part,
The pivot shaft is a wrist joint structure of a doll toy arranged on the arm portion on the opposite side to the body portion. The wrist joint structure of a doll toy according to claim 1 or 2,
The joint portion has an annular member accommodated in the arm portion,
The pivot shaft is connected to an annular member housed in the arm portion,
The annular member is a wrist joint structure of a doll toy that is rotatable with respect to the arm portion along an inner surface of the arm portion. The doll toy provided with the wrist joint structure of the doll toy according to any one of claims 1 to 4.

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