HK1208194B - Joint structure for human-like toy - Google Patents

Abstract

The present invention is to provide a joint structure for a human-like toy which can perform human-like actions and take good and verisimilitude postures when its arms and legs are moved. A first member (22) is rotatably supported by a first rotational shaft (211) of a joint body (21), and a second member (23) is rotatably supported by a second rotational shaft (212) of the joint body (21). The joint body (21) rotatably moves when the first member (22) and second member (23) rotate, which enables human-like actions and good, verisimilitude postures.

Description

Joint structure of doll

Related information of divisional application

The scheme is a divisional application. The parent of the division is an invention patent application with the application date of 2011, 4 and 25 months, the application number of 201110112125.X, and the invention name of the invention is 'the joint structure of the doll'.

Technical Field

The present invention relates to a joint structure of doll body.

Background

As a conventional doll, a plastic mold (hereinafter referred to as a "mold") such as a robot is known. The model is provided with a plurality of joints so that the user can freely decide the posture. In addition, a doll having various joints for rotatably configuring arms and legs coupled via the joints has been developed.

For example, a doll described in patent document 1 includes a spherical joint shaft and a coupling body having a fitting recess portion that can be fitted to the joint shaft.

The doll described in patent document 2 has a locking projection pressed by a spring at the lower end of the thigh member. On the other hand, a circular boss portion centered on the rotation center of the lower leg member is provided at the upper end of the lower leg member, and a plurality of engaging concave portions are formed in the circular boss portion. The doll body fixes the joint by pressing the locking projection against the engagement recess at an arbitrary position.

[ Prior art documents ]

[ patent document ]

[ patent document 1] Japanese patent laid-open No. Hei 6-327841

[ patent document 2] Japanese patent laid-open No. 2001-74030

Disclosure of Invention

[ problems to be solved by the invention ]

However, in the above-described conventional doll, when the arm or leg is rotated about the joint, the arm or leg performs a simple circular motion about the joint, and therefore the arm or leg moves independently of the joint. Therefore, unlike the movement of arms or legs of a person or the like, there is a problem that the appearance is not as good as it is.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a joint structure of a doll body which can perform a motion similar to that of a human body when moving an arm or a leg and can adopt a posture having a good appearance as if it were.

[ means for solving problems ]

The joint structure of a doll according to the present invention is a joint structure of a doll in which a 1 st member and a 2 nd member are coupled to each other so as to be relatively rotatable, and includes a joint body having a 1 st rotating shaft for rotatably supporting the 1 st member and a 2 nd rotating shaft for rotatably supporting the 2 nd member, the joint body being configured to be rotationally moved in accordance with the rotation of the 1 st member and the 2 nd member, and including: a 1 st coupling member, one end of which slides along a 1 st sliding hole provided in the 1 st member in a longitudinal direction, and the other end of which is rotatably attached to the joint body; and a 2 nd coupling member, one end of which slides along a 2 nd sliding hole provided in the 2 nd member in the longitudinal direction, and the other end of which is rotatably attached to the joint body.

In the joint structure of the doll according to the present invention, the 1 st member and the 2 nd member may form an arm, and the joint body may be an elbow. In the joint structure of the doll according to the present invention, the 1 st member and the 2 nd member may form legs, and the joint body may be a knee.

[ Effect of the invention ]

According to the doll joint structure of the present invention, it is possible to provide a doll joint structure which can perform a motion similar to a human and can adopt a posture having a good appearance as if it were.

Drawings

Fig. 1 is an overall perspective view of a doll using a joint structure of the doll according to the embodiment of the present invention.

Fig. 2 is a skeleton portion of an arm of a doll, fig. 2(a) is a side view showing a state in which an elbow is extended, and fig. 2(B) is a side view showing a state in which the elbow is bent.

Fig. 3 is an external view of an arm of the doll, fig. 3(a) is a side view showing a state where the elbow is extended, and fig. 3(B) is a side view showing a state where the elbow is bent.

Fig. 4 is a skeleton portion of a leg of a doll, fig. 4(a) is a side view of a state in which a knee is extended, and fig. 4(B) is a side view of a state in which the knee is bent.

Fig. 5 is an external view of a leg of the doll, fig. 5(a) is a side view of a state in which a knee is extended, and fig. 5(B) is a side view of a state in which the knee is bent.

Fig. 6 is an exploded perspective view of the knee joint of the doll.

Fig. 7 is a sectional view of the knee joint with the legs extended.

Fig. 8 is a sectional view of the knee joint with the leg bent.

[ description of symbols ]

1 doll body

Joint structure of 10 doll

11 Joint Structure of arm

12-legged joint structure

20 arm

20A, 30A skeleton portion

20B mask part

21 elbow joint (elbow joint body)

211. 311 st rotating shaft

212. 312 No. 2 rotating shaft

213. 313 rd 3 rd rotating shaft

214. 314 th rotating shaft

22 Upper arm skeleton part (part 1)

221 st sliding hole

23 lower arm skeleton part (2 nd part)

231 nd 2 nd sliding hole

24. 341 st connecting member

241. 341 one end of the 1 st connecting member

242. 342 the other end of the 1 st connecting member

25. 35 No. 2 connecting member

251. 351 nd 2 nd connecting member

252. 352 the other end of the 2 nd connecting member

26 Upper arm mask

27 underarm shade

28 elbow shade

30. 90 legs

31 knee joint

32 thigh frame part (part 1)

321 st sliding hole

33 shank skeleton part (2 nd part)

331 nd 2 nd sliding hole

34A, 34B connecting member

34C rotating shaft

36 thigh shade

361 front shade

37 knee joint

38 knee shield

39 feet shade

50 upper body

51 shoulder joint

60 neck

70 hand

71 wrist joint

72 wrist rotation axis

80 feet

81 ankle

82 ankle rotating shaft

83 tiptoe part

84 tiptoe rotating shaft

91 Knee joint

911 left knee joint part

91la, 912a peripheral wall

911b, 912b lower bearing part

911c and 912c upper bearing part

91a speed regulation projection

912 right knee joint part

913 anterior knee joint

92 thigh

921. 922 thigh base

923 front thigh shade

924 rear thigh shade

925. 926 thigh joint shade

927 speed regulating part

928 rotating part

929 connecting member

93 lower leg part

941 lower cylindrical connecting part

941a, 942a plane part

942 upper cylindrical connecting part

95 speed regulation board

95a oblong hole

96 femoral joint

A. B, C arrow head

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. As shown in fig. 1, the joint structure of the doll according to the embodiment of the present invention is applicable to, for example, a doll 1. The doll 1 includes: two legs 30, 30; a waist 40 rotatably supporting the leg 30; an upper body 50 rotatably supported at the waist 40 at a certain angle; two arms 20, 20 rotatably supported on the upper body 50; and a head (not shown) rotatably supported on the upper body 50 via the neck 60; and the joint structure of the figure can be applied to the elbow joints (elbows) 21 of the arms 20 and the elbow joints (elbows) 31 of the legs 30.

The joint structure 11 of the arm 20 will be described with reference to fig. 2 and 3. The arm 20 includes a skeleton portion 20A as a structural member, and a mask portion 20B provided outside the skeleton portion 20A to form an appearance. First, the skeleton portion 20A will be described with reference to fig. 2(a) and 2 (B). The arm 20 is rotatably supported by a shoulder joint 51 at an arbitrary angle to an upper body 50 (see fig. 1), and includes: an upper arm skeleton portion 22 as the 1 st member between the elbow joint 21 and the shoulder joint 51 as a joint body; and a lower arm skeleton portion 23 which is the 2 nd member located further forward (lower) than the elbow joint 21. In the following embodiments, the joint body is a member that relatively rotatably couples the 1 st member and the 2 nd member.

The upper arm skeleton portion 22 is supported rotatably with respect to the elbow joint 21 and fixedly at a specific angle by a 1 st rotation shaft 211 provided on the elbow joint 21. The 1 st sliding hole 221 having an elliptical shape is provided in the upper arm skeleton portion 22 along the axial direction of the upper arm skeleton portion 22. Further, the lower arm skeleton portion 23 is supported rotatably with respect to the elbow joint 21 and fixedly at a certain angle by a 2 nd rotation shaft 212 provided on the elbow joint 21. The lower arm skeleton portion 23 is provided with a 2 nd slide hole 231 having an elliptical shape along the axial direction of the lower arm skeleton portion 23.

The upper arm frame portion 22 side of the elbow joint 21 has a 1 st coupling member 24, one end 241 of which slides along the 1 st sliding hole 221 and the other end 242 of which is rotatably attached to the elbow joint 21 via a 3 rd rotation shaft 213. Further, the lower arm skeleton portion 23 side of the elbow joint 21 has the 2 nd coupling member 25, one end 251 of which slides along the 2 nd slide hole 231 and the other end 252 of which is rotatably attached to the elbow joint 21 via the 4 th rotation shaft 214.

A wrist joint 71 to which a hand 70 (see fig. 1) is attached is provided at the front end (lower end) of the lower arm frame portion 23. The wrist joint 71 is rotatably supported by a wrist rotation shaft 72 provided at the front end of the lower arm frame portion 23.

As shown in fig. 3(a) and 3(B), the mask portion 20B, which is the external appearance of the arm 20, is a member to which masks corresponding to respective portions are attached outside the skeleton portion 20A. Specifically, an upper arm mask 26 is attached to the outer side of the upper arm skeleton portion 22, and a lower arm mask 27 is attached to the outer side of the lower arm skeleton portion 23. The upper arm cover 26 and the lower arm cover 27 are divided into a plurality of parts, at least a front side and a rear side, and can be attached by sandwiching the upper arm skeleton portion 22 and the lower arm skeleton portion 23 from front to rear. Further, an elbow cover 28 covering the elbow joint 21, the 1 st coupling member 24, and the 2 nd coupling member 25 is attached to the outside of the elbow joint 21. The elbow mask 28 is also divided into a plurality of sections from a novelty and installation standpoint. In the present embodiment, the 1 st connecting member 24 is attached with the upper arm cover 26, and the 2 nd connecting member 25 is attached with the lower arm cover 27. Thereby, the upper cover 26 is moved in the sliding direction in accordance with the sliding of the 1 st coupling member 24 along the 1 st sliding hole 221, and the lower cover 26 is moved in the sliding direction in accordance with the sliding of the 2 nd coupling member 25 along the 2 nd sliding hole 231.

Next, the movement when the lower arm skeleton portion 23 is rotated with respect to the upper arm skeleton portion 22 will be described. When the lower arm skeleton portion 23 is rotated about the 2 nd rotation shaft 212 in the arrow a direction in fig. 2(a), the 2 nd coupling member 25 having the tip end slidably fitted into the 2 nd slide hole 231 of the lower arm skeleton portion 23 is rotated about the 2 nd rotation shaft 212, and also rotated about the 4 th rotation shaft 214 in the same direction, while the lower arm skeleton portion 23 is rotated about the 2 nd rotation shaft 212. At this time, the one end 251 of the 2 nd coupling member 25 slides in the arrow B direction along the 2 nd slide hole 231.

When the elbow joint 21 pivots about the 1 st pivot shaft 211 to which the upper arm skeleton portion 22 is attached, the 3 rd pivot shaft 213 provided in the elbow joint 21 moves while rotating (hereinafter referred to as "pivoting movement"), and therefore the 1 st coupling member 24 having the other end 242 attached to the 3 rd pivot shaft 213 also moves rotationally. At this time, the one end 241 of the 1 st coupling member 24 slides downward along the 1 st sliding hole 221.

Thereby, the elbow joint 21 rotates in the C direction in fig. 2(B) in accordance with the rotation of the lower arm skeleton portion 23. The mask portion 20B attached to the frame portion 20A is also moved in the same manner by the movement of the frame portion 20A, and the elbow mask 28 is rotated (in the direction of arrow a in fig. 3B). This makes it possible to perform a human-like motion and to adopt a posture that looks good as if it were true.

According to the joint structure 11 of the arm of the doll of the present embodiment, the 1 st coupling member 24 is provided between the elbow joint 21 and the upper arm skeleton portion 22 rotatably supported on the 1 st rotation shaft 211 of the elbow joint 21, and one end 241 slides along the 1 st sliding hole 221 provided long in the axial direction of the upper arm skeleton portion 22 and the other end 242 is rotatably attached to the elbow joint 21, so when the upper arm skeleton portion 22 is rotated with respect to the elbow joint 21, the 1 st coupling member 24 rotates in tandem. Further, since the 2 nd coupling member 25 is provided between the elbow joint 21 and the lower arm skeleton portion 23 rotatably supported on the 2 nd rotation shaft 212 of the elbow joint 21, one end 251 thereof slides along the 2 nd slide hole 231 provided long in the axial direction of the lower arm skeleton portion 23, and the other end 252 thereof is rotatably attached to the elbow joint 21, when the lower arm skeleton portion 23 is rotated with respect to the elbow joint 21, the 2 nd coupling member 25 is rotated in conjunction therewith.

Accordingly, when the upper arm skeleton portion 22 and the lower arm skeleton portion 23 rotate, the elbow joint 21 rotates, and the mask 28 attached to the elbow joint 21 rotates in the arrow a direction in fig. 3(B), so that a movement similar to that of a human can be performed, and a posture having a good appearance can be adopted.

When the upper arm skeleton portion 22 and the lower arm skeleton portion 23 rotate, the elbow joint 21 rotates, so that the elbow mask 28 attached to the elbow joint 21 rotates in the arrow a direction in fig. 3(B), and the upper arm mask 26 and the lower arm mask 27 move in the elbow joint 21 direction. The upper arm mask 26 and the lower arm mask 27 are moved in accordance with the rotational movement of the elbow joint 21, so that it looks as if the muscle movement of a person is reproduced, the movement more similar to the person can be performed, and a posture with good appearance can be adopted as if it were.

Next, the joint structure 12 of the leg 30 will be described with reference to fig. 4 and 5. The leg 30 includes a skeleton portion 30A as a structural member, and a mask portion 30B provided outside the skeleton portion 30A to form an appearance. First, the skeleton portion 30A will be described with reference to fig. 4(a) and 4 (B). The leg 30 is rotatably supported by the upper body 50 (see fig. 1) via a hip joint 52 and can be fixed at an arbitrary angle, and includes a thigh skeleton portion 32 as a 1 st member between the knee joint 31 and the hip joint 52 as a joint body, and a lower thigh skeleton portion 33 as a 2 nd member below the knee joint 31.

The thigh skeleton portion 32 is supported rotatably with respect to the knee joint 31 and fixedly at a specific angle by a 1 st rotation shaft 311 provided on the knee joint 31. In the femoral framework portion 32, a 1 st sliding hole 321 having an elliptical shape is provided along the axial direction of the femoral framework portion 32. The lower leg skeleton portion 33 is supported by a 2 nd rotation axis 312 provided on the knee joint 31 so as to be rotatable with respect to the knee joint 31 and so as to be fixed at a specific angle. The 2 nd sliding hole 331 having an elliptical shape is provided in the leg skeleton portion 33 along the axial direction of the leg skeleton portion 33.

The knee joint 31 has a 1 st coupling member 34 on the femoral portion 32 side, and one end 341 slides along a 1 st sliding hole 321 and the other end 342 is rotatably attached to the knee joint 31 via a 3 rd rotation shaft 313. Here, the 1 st coupling member 34 includes a coupling member 34A on one end side and a coupling member 34B on the other end side, and both the coupling members 34A, 34B are relatively rotatably coupled to the rotating shaft 34C. The 2 nd coupling member 35 is provided on the leg skeleton portion 33 side of the knee joint 31, and one end 351 thereof slides along the 2 nd slide hole 331 and the other end 352 thereof is rotatably attached to the knee joint 31 via the 4 th rotation shaft 314.

An ankle joint 81 to which the foot 80 is attached is provided at the front end (lower end) of the lower leg skeleton portion 33. The ankle joint 81 is rotatably supported by an ankle rotating shaft 82 provided at the tip of the lower leg skeleton portion 33. The toe portion 83 at the front end of the leg 80 is connected to be rotatable in the vertical direction (the direction of arrow a in fig. 4B) by a toe rotation shaft 84.

As shown in fig. 5(a) and 5(B), the mask portion 30B, which is the appearance of the leg 30, is a member in which masks corresponding to respective portions are attached to the outside of the skeleton portion 30A. Specifically, a thigh cover 36 is attached to the outer side of the thigh skeleton portion 32, and a lower leg cover 37 is attached to the outer side of the lower leg skeleton portion 33. The thigh mask 36 and the calf mask 37 are divided into a plurality of parts, at least a front side and a rear side, and are attached by sandwiching the thigh skeleton portion 32 and the calf skeleton portion 33 from the front and the rear. A knee cover 38 covering the knee joint 31, the 1 st coupling member 34, and the 2 nd coupling member 35 is attached to the outer side of the knee joint 31. The knee shroud 38 is also divided into a plurality of sections from a novelty and installation standpoint. In addition, a foot cover 39 covering the foot 80 or the ankle 81 is also provided. In the present embodiment, the thigh cover 36 is attached to the 1 st connecting member 34, and the calf cover 37 is attached to the 2 nd connecting member 35. Thus, the thigh cover moves in the sliding direction 36 as the 1 st coupling member 34 slides along the 1 st sliding hole 321, and the calf cover 36 moves in the sliding direction as the 2 nd coupling member 35 slides along the 2 nd sliding hole 331.

Next, the movement when the femoral skeleton portion 32 is relatively rotated with respect to the lower leg skeleton portion 33 will be described. When the femoral component 32 is rotated about the 1 st rotation shaft 311 in the direction of arrow B in fig. 4(a), the 1 st coupling member 34 having one end 341 slidably fitted into the 1 st sliding hole 321 of the femoral component 32 is rotated about the 3 rd rotation shaft 313 in the same direction while the femoral component 32 is rotated about the 1 st rotation shaft 311. At this time, the one end 341 of the 1 st coupling member 34 slides along the 1 st sliding hole 321 in the direction of the knee joint 31.

Further, when the knee joint 31 is rotated in the arrow C direction in fig. 4(B) about the 2 nd rotation axis 312 to which the lower leg skeleton portion 33 is attached, the 4 th rotation axis 314 provided in the knee joint 31 is rotated, and therefore the 2 nd coupling member 35 having the other end 352 attached to the 4 th rotation axis 314 is also rotated. At this time, the one end 351 of the 2 nd coupling member 35 slides upward along the 2 nd slide hole 331.

Thereby, the knee joint 31 is rotationally moved in the B direction in fig. 4(B) in accordance with the rotation of the femoral component 32. Since the cover portions 30B attached to the skeleton portions 30A are also moved by the movement of the skeleton portions 30A, the knee cover 38 is rotationally moved in the a direction in fig. 5 (B). Further, by coupling the front cover 361 of the thigh cover 36 to the coupling member 34B on the other end side of the 1 st coupling member 34, the front cover 361 can be moved in the direction of the knee joint 31 (the direction of arrow B in fig. 5B) when the thigh frame portion 32 is rotated.

Further, according to the joint structure 12 of the leg of the doll of the present embodiment, the 1 st coupling member 34 is provided between the knee joint 31 and the femoral frame portion 32 rotatably supported on the 1 st rotation shaft 311 of the knee joint 31, and one end 341 slides along the 1 st sliding hole 321 provided long in the axial direction of the femoral frame portion 32, and the other end 342 is rotatably attached to the knee joint 31, so that when the femoral frame portion 32 is rotated with respect to the knee joint 31, the 1 st coupling member 34 is rotated in conjunction therewith. Further, since the 2 nd coupling member 35 is provided between the knee joint 31 and the lower leg skeleton portion 33 rotatably supported on the 2 nd rotation shaft 312 of the knee joint 31, one end 351 thereof slides along the 2 nd slide hole 331 provided long in the axial direction of the lower leg skeleton portion 33, and the other end 352 thereof is rotatably attached to the knee joint 31, when the lower leg skeleton portion 33 is rotated with respect to the knee joint 31, the 2 nd coupling member 35 is rotated in conjunction therewith.

As a result, when the thigh skeleton portion 32 and the lower leg skeleton portion 33 are rotated, the knee joint 31 is rotationally moved, and the knee cover 38 attached to the knee joint 31 is rotationally moved in the arrow a direction in fig. 5(B), so that a movement similar to that of a human can be performed, and a posture with good appearance can be adopted as if it were.

When the thigh skeleton portion 32 and the lower leg skeleton portion 33 are rotated, the knee joint 31 is rotationally moved, and the knee cover 38 attached to the knee joint 31 is rotationally moved in the arrow a direction in fig. 3(B), and the thigh cover 36 and the lower leg cover 37 are moved in the knee joint 31 direction. By moving the thigh cover 36 and the calf cover 37 in accordance with the rotational movement of the knee joint 31, it appears as if the muscle movement of a person is reproduced, the movement similar to that of a person can be performed, and a posture with good appearance can be adopted as if it were.

A modified example of the leg 90 will be described with reference to fig. 6 to 8. As shown in the drawing, the knee joint 91 has a left knee joint part 911 and a right knee joint part 912 which can be connected, and an anterior knee joint part 913 is provided on the front surface of the left and right knee joint parts 911 and 912. The left and right knee joint portions 911 and 912 have peripheral walls 91la and 912a along the outer peripheries thereof, respectively, and the peripheral walls 911a and 912a are connected to each other to form an internal space. A later-described governor protrusion 91a is provided at a specific position inside the knee joint 91.

The left knee joint portion 911 has a cylindrical lower bearing portion 911b and an upper bearing portion 911c inside. The height of both bearing portions 911b and 911c is lower than the height of the peripheral wall 911 a. The right knee joint portion 912 has a cylindrical lower bearing portion 912b and an upper bearing portion 912c at positions facing the upper and lower bearing portions 911b and 911c of the left knee joint portion 911. Both bearing portions 912b and 912c are lower in height than the peripheral wall 912 a. Therefore, when the left and right knee joint portions 911 and 912 are coupled, the lower bearing portions 911b and 912b and the upper bearing portions 911c and 912c are disposed continuously with a fixed interval therebetween.

A lower cylindrical coupling member 941 is rotatably housed in the lower bearing portions 911b and 912b, and an upper cylindrical coupling member 942 is rotatably housed in the upper bearing portions 911c and 912 c. The lower cylindrical coupling member 941 rotates integrally with the lower leg portion 93, and the upper cylindrical coupling member 942 rotates integrally with the thigh portion 92. The outer peripheries of the lower bearing portions 911b and 912b are disposed in contact with the outer peripheries of the upper bearing portions 911c and 912c, and partially communicate with each other. Therefore, the lower cylindrical coupling member 941 accommodated in the lower bearing portions 911b and 912b contacts the upper cylindrical coupling member 942 accommodated in the upper bearing portions 911c and 912 c.

Each of the cylindrical coupling members 941 and 942 has a cylindrical shape, but has a plurality of flat portions 941a and 942a on a part of its circumferential surface. Therefore, rotation is restricted in a state where the flat portions 941a, 942a of the two cylindrical coupling members 941, 942 are in contact with each other. This prevents relative rotation between the lower leg portion 93 and the thigh portion 92 under a certain force or less. When a rotational force of a specific magnitude or more is applied, the flat portions 941a, 942a are out of contact with each other, and the lower leg portion 93 and the thigh portion 92 can be relatively rotated.

The small leg portion 93 is integrally attached to a lower cylindrical coupling member 941, and a flat surface portion 941a of the lower cylindrical coupling member 941 is disposed on a distal end side (upper end side). Since the lower leg portion 93 rotates only about the lower cylindrical coupling member 941, a detailed description of the structure is omitted.

The lower end portion of the thigh portion 92 is integrally attached to the upper cylindrical coupling member 942, and the flat surface portion 942a of the upper cylindrical coupling member 942 is disposed on the tip side (lower end side). The thigh section 92 has left and right thigh bases 921, 922 at the center, and has a front thigh cover 923 and a rear thigh cover 924 that cover the front and rear of the thigh bases 921, 922. A speed adjusting member 927 having a speed adjusting plate 95, which will be described later, is rotatably attached to the thigh bases 921, 922 via a rotating member 928. That is, the thigh member formed by joining the left and right thigh bases 921, 922 is pivotally supported via the pivotal member 928 to be pivotable. Further, hip joint covers 925 and 926 each holding a hip joint 96 of the upper portion of the thigh portion 92 from front to rear are provided.

Here, the speed regulation plate 95 is provided with an oblong hole 95a in which the above-described speed regulation protrusion 91a provided in the knee joint 91 is movably housed. That is, the speed regulation protrusion 91a provided in the left knee joint portion 911 and the speed regulation protrusion 91a provided in the right knee joint portion 912 are accommodated in the oblong hole 95 a. Thereby, the knee joint 91 and the rotary member 928 are rotatably supported. Further, in an internal space formed by joining the left and right thigh bases 921, 922, a turning member 928 for turning the front thigh cover 923 and a coupling member 929 for coupling the front and rear hip joint covers 925, 926 to the upper end portions of the thigh bases 921, 922 are provided.

Next, in a state where the leg 90 is extended straight in accordance with flexion and extension of the knee, the lower cylindrical coupling member 941 and the upper cylindrical coupling member 942 are in contact with each other at the flat portions 941a and 942a, and rotation of a certain rotational force or less is prevented to maintain the straight state. Further, the speed regulating protrusion 91a is located at an upper end portion of the oblong hole 95a of the speed regulating plate 95.

When the lower leg portion 93 is rotated rearward (see arrow a in fig. 7) from the standing state shown in fig. 7 to bend the leg 30, the lower leg portion 93 is rotated about the lower cylindrical coupling member 941. However, since the rotation of the lower cylindrical coupling member 941 with respect to the upper cylindrical coupling member 942 is restricted, the small leg portion 93 rotates integrally with the knee joint 91 around the upper cylindrical coupling member 942.

As shown in fig. 8, the rotation of the knee joint 91 causes the speed regulation protrusion 91a to move inside the oblong hole 95 a. Then, when the governor protrusion 91a abuts on the lower end portion of the oblong hole 95a, the knee joint 91 is prevented from rotating in a state of being flexed by a certain angle with respect to the thigh portion 92.

When the leg portion 93 is further rotated rearward to bend the leg 90, the knee joint 91 is not rotated, and therefore the leg portion 93 is rotated about the lower tubular coupling member 941. When the rotational force of the lower cylindrical coupling member 941 reaches a fixed magnitude or more, the flat surface portion 941a of the lower cylindrical coupling member 941 moves smoothly from the flat surface portion 942a of the upper cylindrical coupling member 942 and contacts the adjacent flat surface portion 942 a. Thereby, the lower leg portion 93 rotates only by a fixed angle with respect to the knee joint 91. Accordingly, the rotating member 928 rotates in the direction of arrow B in fig. 8, and pushes the front thigh cover 923 forward (see arrow C in fig. 8).

When the small leg 93 is further rotated, the flat surface 942a of the upper cylindrical coupling member 942, which is in contact with the flat surface 941a of the lower cylindrical coupling member 941, moves, and thus can be rotated by a fixed angle at a time.

When the knee is moved from the state of being bent as shown in fig. 8 to the state of being extended as shown in fig. 7, the lower leg portion 93 is rotated in the direction of arrow D in fig. 8. At this time, since the lower leg portion 93 and the knee joint 91 are restricted from relative rotation by the contact between the flat surface portion 941a of the lower cylindrical coupling member 941 and the flat surface portion 942a of the upper cylindrical coupling member 942, the knee joint 91 is also rotated integrally, and the speed regulation protrusion 91a moves inside the oblong hole 95 a.

When the governor protrusion 91a abuts on the upper end portion of the oblong hole 95a, the knee joint 91 moves the governor member 927 in the arrow E direction in fig. 8 while rotating the rotary member 928. When the small leg portion 93 further rotates, the speed adjusting member 927 abuts against the left and right thigh base portions 921, 922 to stop moving. Then, by further rotating the lower leg portion 93, the lower leg portion 93 is rotated about the lower cylindrical coupling member 941 and returned to the standing state shown in fig. 7.

When the lower leg portion 93 is rotated to bend the knee, if the lower leg portion 93 is rotated by a predetermined angle or more, the knee joint 91 is rotated in conjunction with the rotation, and the front thigh cover 923 is also moved in conjunction with the rotation. Here, since the oblong hole 95a is provided in the speed adjusting member 927 that connects the knee joint 91 and the thigh member to each other so as to be relatively rotatable, the speed adjusting protrusion 91a moves inside the oblong hole 95a when the knee member 91 rotates. Thus, the timing of moving the front leg shield 923 can be adjusted, so that the knee joint 91 and the front thigh shield 923 can be moved at an appropriate timing, and the state in which the muscles of the person swell can be reproduced.

The joint structure of the doll according to the present embodiment is not limited to the above-described embodiment, and various modifications and changes may be made. That is, in the above-described embodiment, the case of applying the present invention to a doll such as a person standing on two legs 30 and 30 is exemplified, but the present invention is also applicable to other dolls such as an animal standing on four legs.

Claims (12)

1. A joint structure of a doll body is characterized in that: the device is provided with a 1 st component and a 2 nd component which can be relatively rotatably connected, and comprises:

a joint body which rotatably supports the 1 st member and the 2 nd member, and

a 1 st coupling member having one end slidably provided to the 1 st member and the other end rotatably provided to the joint body,

the joint body rotates in accordance with rotation of at least one of the 1 st member and the 2 nd member.

2. The articulated structure of a doll according to claim 1, comprising:

and a 2 nd coupling member having one end slidably provided to the 2 nd member and the other end rotatably provided to the joint body.

3. The articulated structure of a doll of claim 1, wherein:

the 1 st connecting member includes a 1 st mask member.

4. The articulated structure of a doll of claim 2, wherein:

the 1 st connecting member includes a 1 st mask member.

5. The articulated structure of a doll of claim 2, wherein:

the 2 nd coupling member includes a 2 nd mask member.

6. The articulated structure of a doll of claim 3, wherein:

the 2 nd coupling member includes a 2 nd mask member.

7. The articulated structure of a doll of claim 4, wherein:

the 2 nd coupling member includes a 2 nd mask member.

8. The articulated structure of a doll according to any one of claims 1 to 7, wherein:

one end of the 1 st connecting member is attached to an oblong slide hole provided in the 1 st member.

9. The articulated structure of a doll according to any one of claims 2 to 7, wherein:

one end of the 2 nd connecting member is attached to an oblong slide hole provided in the 2 nd member.

10. The articulated structure of a doll according to any one of claims 1 to 7, wherein:

the 1 st member and the 2 nd member form a leg portion, and the joint body forms a knee portion.

11. The articulated structure of a doll of claim 8, wherein:

the 1 st member and the 2 nd member form a leg portion, and the joint body forms a knee portion.

12. The articulated structure of a doll of claim 9, wherein:

the 1 st member and the 2 nd member form a leg portion, and the joint body forms a knee portion.