Doll joint structure

Abstract

To provide a doll joint structure which can expand a movable region.SOLUTION: A movable doll comprises a shoulder joint part 25 which is connected between an upper end of an upper arm 21 and an upper arm facing region A1 of a trunk part 1 to which the upper end of the upper arm faces in a manner that the upper arm is movable, where the shoulder joint part includes: a first member 27 which connects one end part to the upper arm side; and a second member 43 which is arranged on the trunk part and to which the other end part of the first member is connected. The second member comprises a slide hole part 45 into which the other end part of the first member is slidably inserted. The other end part of the first member is formed in a rod-shape which protrudes from an outlet 45b side of the slide hole part by a prescribed length when the other end part is inserted into and assembled in the slide hole part. The other end part of the first member comprises an anti-slip part 63 at a position separated from the outlet side of the slide hole part by a prescribed distance, thereby providing a movement permission region A2 between the outlet side of the slide hole part and the anti-slip part.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a joint structure for a doll in which joints such as shoulder joints are movable. In the present invention, the term "doll" includes both a completed doll with eyes and hair, or a nude doll without eyes, hair, or a head. [Background technology]

[0002] Dolls with movable joints, or movable dolls, are popular not only among younger consumers but also among older consumers, and dolls with a wide range of joint movement that can accommodate a variety of movements are particularly popular. Therefore, we have been conducting extensive research to increase the range of motion of the joints and make the robot's movements more similar to those of a real human. Patent Document 1 provides a structure for expanding the range of motion of the shoulder joint in the vertical direction by interposing a connecting member between the torso side and the arm side, inserting a support rod protruding from the connecting member on the side facing the torso into a hole on the torso side, and constantly biasing the connecting member toward the torso side using a spring member.

[0003] However, the structure disclosed in Patent Document 1 cannot provide a structure that increases the range of motion of the shoulder joint in the forward direction. That is, with the shoulder joint structure disclosed in Patent Document 1, it is not possible to move the arm portion horizontally by a large amount using the shoulder joint, and it is not possible to make the doll assume poses such as hunching the shoulders forward (as if hunched over from the cold) or grabbing opposite shoulders with each hand. Furthermore, even if you try to force the arm to move horizontally, it is not possible to maintain that position because the connecting member is always biased so that it is pressed toward the torso. Therefore, this undesirably limits the poses that can be made for the doll. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3922812 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been made to solve the problems of the prior art described above, and its object is to provide a joint structure for a doll that allows for an increased range of motion. [Means for solving the problem]

[0006] The technical means of the first invention to solve the above problems is a movable doll including a shoulder joint unit that connects the upper arm between an upper end of the upper arm and an upper arm facing region of a torso that faces the upper end of the upper arm so that the upper arm can move, The shoulder joint portion is a first member having one end connected to the upper arm side; a second member disposed on the body portion side and connecting the other end of the first member, the second member has a slide hole portion through which the other end portion of the first member is slidably inserted, The other end of the first member is formed in a rod shape that protrudes a predetermined length from the outlet side of the slide hole portion when inserted into the slide hole portion and assembled so as to be slidable. And, The second member includes a support portion disposed on the trunk portion side so as to be rotatable in a horizontal direction about a vertical axis; and a receiving portion that is rotatably held by the support portion via a horizontal axis and that has the slide hole portion. The joint structure of the doll is characterized by the following.

[0007] The second aspect of the present invention is the first aspect of the present invention, wherein the support portion comprises a bottom plate portion having a vertical axis; Bottom plate part and two vertical plate portions that are continuously raised from the opposing sides of the The joint structure of the doll is characterized in that the horizontal axis is spanned across the two vertical plate portions.

[0008] A third aspect of the present invention is the second aspect of the present invention, wherein the shoulder joint portion is covered by a shoulder cover portion disposed between an upper end of the upper arm and an upper arm facing region of the torso with which the upper end of the upper arm faces so that the shoulder joint portion cannot be directly seen from the outside, The shoulder cover portion is configured to move in accordance with the movement of the shoulder joint portion, thereby forming a joint structure for the doll.

[0009] The fourth aspect of the present invention is the third aspect of the present invention, wherein a guide protrusion is provided on an outer surface of each of the vertical plate portions, The shoulder cover portion has opposing inner surfaces. Guide protrusion The joint structure of the doll is characterized by the provision of a slide sliding part that slidably holds the

[0010] The fifth invention is a joint structure for a doll according to any one of the first to fourth inventions, characterized in that the other end of the first member is provided with a retaining portion at a position a predetermined distance away from the exit side of the sliding hole portion, thereby providing a movement allowance area between the exit side of the sliding hole portion and the retaining portion. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a joint structure for a doll that allows for a larger range of motion. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a partial schematic view showing the external appearance of a doll according to an embodiment of the present invention; [Figure 2] FIG. 10 is a partial schematic diagram showing the state in which the chest skin and the first abdominal skin have been removed and the right arm has been moved forward horizontally. [Figure 3] Schematic diagram showing the movement of the shoulder joint. (a) shows the state in which the right shoulder starts to rotate horizontally forward toward the left shoulder, and (b) shows the state in which the right shoulder has rotated further toward the left shoulder from the state in (a). [Figure 4]Schematic diagrams showing the movement of the shoulder joint. (a) shows the state in which the right shoulder is moved horizontally forward, (b) shows the state in which the right shoulder has begun to rotate horizontally forward toward the left shoulder from the state in (a), and (c) shows the state in which the right shoulder has further rotated toward the left shoulder from the state in (b). [Figure 5] 1 shows the sliding movement state of the first member in the movement allowance region, where (a) is the normal state and (b) shows the state after sliding from the state in (a) toward the shoulder direction to the right on the drawing. [Figure 6] FIG. 2 is a partially enlarged perspective view showing a shoulder joint portion. [Figure 7] FIG. 10 is a partially enlarged perspective view showing a state in which the mold cover part moves in response to the movement of the shoulder joint part. [Figure 8] 1 is a partial schematic view showing that the chest skin and the first abdominal skin have been removed and the chest skeleton and the abdominal skeleton are connected via a detachment prevention mechanism that is rotatable in a horizontal direction perpendicular to the vertical direction. [Figure 9] 9 is a partial schematic view showing a state in which the abdominal skeleton is rotated from the state in FIG. 8. FIG. [Figure 10] 1A is a partial vertical cross-sectional side view showing the fall-off prevention mechanism, and FIG. 1B is a partial cross-sectional plan view showing the fall-off prevention mechanism. DETAILED DESCRIPTION OF THE INVENTION

[0014] A joint structure of a doll according to one embodiment of the present invention will be described below with reference to the accompanying drawings. Note that this embodiment is merely one embodiment of the present invention and is not intended to be limiting in any way, and design modifications are possible within the scope of the present invention. Furthermore, the present invention contemplates all things that are called dolls, including toys and dolls for viewing, as well as display dolls, mannequin dolls, and so-called base dolls that do not have eyes, hair, or a head, regardless of size.

[0015] The doll is a movable doll that is composed of a skeleton and a skin covering the skeleton, and has joints that movably connect the bones that make up the skeleton.

[0016] This embodiment is characterized in that it is provided with a shoulder joint section 25 that connects the upper arm 21 between the upper end of the upper arm 21 and the upper arm facing area A1 of the torso 1 that faces the upper end of the upper arm 21 so that the upper arm can move. Another feature is that the thoracic skeleton 7a arranged within the torso 1 and the abdominal skeleton 5a arranged integrally below the thoracic skeleton 7a in the vertical direction T1 are rotatably connected via a detachment prevention mechanism 73, and they share the same problem of being able to increase the range of motion. Therefore, in this embodiment, only the torso 1 and arms 15 located above the waist 3 in the vertical direction T1 are shown, and since well-known configurations can be adopted for the other configurations, detailed configurations of the arms 15, legs 9, neck 11, etc. are not shown. In addition, the head 13 is also omitted because it can be adopted in a well-known configuration.

[0017] The following description will focus on the shoulder joint portion 25, which is a characteristic feature, and only briefly describe the other components. In this embodiment, not all of the doll components, such as the torso 1, waist 3, legs 9, and arms 15, have skeletons, but all components may have skeletons and this is within the scope of the present invention. Also, the outer skin is assumed to be made of a soft material (soft vinyl chloride resin, etc.) or a hard material (hard vinyl chloride resin, ceramic, etc.), but the material is not particularly limited.

[0018] In this embodiment, the region located above the waist 3 is referred to as the trunk 1. The trunk 1 is composed of an abdomen 5 and a chest . The abdomen 5 is composed of an abdominal skeleton 5a connected to a lumbar skeleton 3a (not shown) disposed in the lumbar region 3, and an abdominal skin 5b covering the abdominal skeleton 5a. The thorax 7 is composed of a thoracic skeleton 7a connected to the abdominal skeleton 5a and a thoracic skin 7b covering the thoracic skeleton 7a (see FIGS. 1 and 2).

[0019] The abdominal skeleton 5a is connected at its lower end to the lumbar skeleton 3a (not shown), and is provided at its upper end with a cylindrical connecting part 5c erected in the vertical direction T1 (see Figures 8 and 9). The thoracic skeleton 7a is composed of a main body part 7d having an insertion hole 7c into which the connecting part 5c of the abdominal skeleton 5a can be inserted, a horizontal plate part 7e extending horizontally from the upper end of the main body part 7d, and a neck skeleton connecting part 7f connected to the central region of the horizontal plate part 7e (see Figures 8 and 9).

[0020] The arm 15 is made up of an upper arm 21, a lower arm 17, and a hand 23 connected to the lower arm 17 (see FIGS. 1 and 2). The upper arm 21 and the lower arm 17 are each formed solid, and are bendable and detachably connected via an elbow joint 19.

[0021] The upper arm 21 includes a shoulder joint 25 that movably connects the upper arm 21 to an upper arm facing region A1 of the chest 7 (torso 1) that faces the upper end of the upper arm 21.

[0022] The shoulder joint portion 25 is configured to include a first member 27 that connects one end (lower end) to the upper arm 21, and a second member 43 that is arranged on the chest 7 and connects the other end (upper end) of the first member 27 (see Figures 2 to 7).

[0023] The first member 27 is composed of a main body 29 whose one end (lower end) (not shown) is rotatably connected to the upper end of the upper arm 21, and a connecting portion 33 which is rotatably supported on the main body 29 and connected to the second member 42 (see Figures 2 to 4).

[0024] The main body 29 has pivot support pieces 31, 31 formed in a bifurcated shape at one end (lower end) and the other end (upper end) facing each other (see FIG. 1).

[0025] The connecting portion 33 is composed of a disc portion 35 having a predetermined thickness and a rod-shaped slide shaft portion 37 of a predetermined length that protrudes integrally from the outer surface of the disc portion 35 (see Figures 3 and 4). The disk portion 35 is formed to a thickness that allows it to be slidably disposed in a gap 39 between the pivot support pieces 31, 31 of the main body 29, and is rotatably connected to the gap 39 between the pivot support pieces 31, 31 by a shaft 41. The slide shaft portion 37 is formed in a cylindrical rod shape.

[0026] The second member 43 is cylindrical and includes a receiving portion 47 that penetrates both end faces in the cylindrical length direction L1 and has a sliding hole 45 through which the sliding shaft 37 of the first member 27 is inserted so as to be slidable in the cylindrical length direction L1, and a support portion 53 that supports the receiving portion 47 via a horizontal shaft 49 so as to be rotatable in the vertical direction and is supported on the horizontal plate portion 7e of the thoracic skeleton 7a (torso 1) so as to be rotatable in the direction indicated by R1 in the horizontal direction H1 around a vertical shaft 51 (see FIGS. 3 to 7). The sliding hole 45 allows the sliding shaft 37 to slide and rotatably contact the hole.

[0027] The slide hole 45 of the receiving part 47 is designed to have a hole length (depth) such that when the slide shaft 37 is inserted and assembled, and the base end side (boundary with the disk part 35) of the slide shaft 37 abuts against the hole entrance 45a, the other end side (free end side) of the slide shaft 37 protrudes a predetermined length from the hole exit 45b (see Figures 3 and 5). The horizontal shafts 49 are configured as short cylinders protruding horizontally at opposing positions on the outer periphery of the receiving part 47 (see Figures 3, 6 and 7).

[0028] The support part 53 has a U-shaped cross section and is made up of a bottom plate part 55 and two vertical plate parts 57, 57 that rise continuously from opposing sides of the bottom plate part 55 (see FIGS. 3 to 7). A vertical shaft 51 is attached to the bottom plate part 55 and is rotatably connected to a horizontal plate part 7e of the thoracic skeleton 7a (see FIGS. 6 and 7). Therefore, the support part 53 is rotatable on the horizontal plate part 7e in the horizontal direction H1 in the direction indicated by R1 (see FIGS. 3 and 4). Coaxial, horizontal, cylindrical guide protrusions 59 are provided on the outer surface of each of the vertical plate portions 57. Furthermore, through holes 61, 61 through which the horizontal shaft 49 of the receiving portion 47 is slidably inserted are formed in an upper region of the guide protrusions 59 in the vertical direction T1. Therefore, the receiving portion 47 can rotate in the direction indicated by R2 in the vertical direction T1 (up-down direction) around the horizontal shaft 49 (see FIGS. 6 and 7).

[0029] In this embodiment, the other end side of the slide shaft portion 37 is provided with a retaining portion 63 at a position a predetermined distance away from the exit 45b side of the slide hole portion 45, thereby providing a movement allowance area A2 between the exit 45b side of the slide hole portion 45 and the retaining portion 63 (see Figures 3 and 5).

[0030] The retaining portion 63 is configured by a retaining shaft 65 inserted into a hole 37c provided in the outer peripheral region of the other end of the slide shaft portion 37.

[0031] The retaining shaft 65 is formed in a thin rod shape and is configured to protrude a predetermined length from the outer surface of the slide shaft portion 37 (see FIGS. 2 to 7).

[0032] As shown in the figure, only one protruding portion (protruding portion) of the retaining shaft 65 protrudes from the outer surface of the slide shaft portion 37, but the retaining shaft 65 may be formed longer than the maximum diameter of the slide shaft portion 37 and configured to protrude from opposing positions on the outer surface of the slide shaft portion 37, and this is within the scope of the present invention. Also, a configuration may be adopted in which a continuous circumferential groove is formed in the outer circumferential region on the other end side of the slide shaft portion 37, and an O-shaped ring with a diameter larger than the depth of the circumferential groove is fitted into the groove, with the outer periphery of the ring protruding from the outer periphery of the slide shaft portion 37. Also, a configuration in which part or all of the outer periphery of the slide shaft portion 37 is integrally formed to protrude may be adopted, and this is a design modification as appropriate within the scope of the present invention. Furthermore, the width of the allowable movement area A1 can be changed as needed by shifting the position of the retaining shaft 65 in the axial direction of the slide shaft portion 37.

[0033] The above-described configuration provides the following effects.

[0034] The slide shaft 37 of the first member 27, which is disposed integrally with the upper arm 21, is configured to slide in the direction of the tube length L1 within the slide hole 45 of the receiving portion 47 of the second member 43, which is disposed integrally on the torso 1 side (on the horizontal plate portion 7e), thereby widening the range of movement of the arm 15 (shoulder). That is, because the arm 15 can be moved in a direction away from the torso 1 (chest 7), a gap is formed between the upper end of the upper arm 21 and the side surface of the chest 7. Therefore, when the arm 15 is rotated toward the front of the chest 7 to move in the horizontal direction H1, the upper end of the upper arm 21 is less likely to come into contact with the side surface of the chest 7, thereby widening the range of rotation in the horizontal direction H1.

[0035] Furthermore, since the support part 53 can rotate in the horizontal direction H1 in the direction indicated by R1 on the horizontal plate part 7e of the chest skeleton 7a, the range of motion of the arm part 15 (shoulder part) can be widened along with the sliding movement of the slide shaft part 37 described above. Furthermore, since the receiving portion 47 is configured to be rotatable in the direction indicated by R2 in the vertical direction T1 (up and down direction), the range of motion of the arm portion 15 (shoulder portion) can be widened along with the sliding movement of the slide shaft portion 37 and the horizontal rotation of the support portion 53 (rotation in the direction indicated by R1) described above.

[0036] Even if the range of motion can be increased, it is not desirable because if the internal skeletal structure (joint structure) is visible from the outside, it may spoil the aesthetic appearance. Therefore, in this embodiment, the shoulder joint portion 25 is covered by a shoulder cover portion 67 arranged between the upper end of the first member 27 of the upper arm 21 and the second member 43 (upper arm facing region A1 of the torso 1) that the upper end of the first member 27 of the upper arm 21 faces, and is configured to be difficult to see directly from the outside (see Figures 1 to 7).

[0037] The shoulder cover portion 67 is configured to be movable in accordance with the movement of the shoulder joint portion 25. An example of this configuration will be described. The shoulder cover portion 67 is configured in a generally inverted U-shape that can cover and conceal the second member 43 that is visible between the upper end region of the first member 27 and the chest skin 7b, and the opposing inner surfaces are provided with slide sliding portions 69 that slidably hold guide protrusions 59 that protrude from the support portion 53 of the second member 43. The slide sliding portion 69 is formed between two parallel plate portions 71 that protrude a predetermined length and have a width that allows the guide protrusions 59 to slide (see FIGS. 6 and 7).

[0038] Therefore, since the guide protrusions 59, 59 of the support part 53 are positioned so as to be able to slide within the slide sliding parts 69, 69, the shoulder cover part 67 can slide in the horizontal direction H1 along the surface part of the vertical plate part 57 outside the vertical plate part 57 of the support part 53. Furthermore, since the guide protrusions 59, 59 are positioned so as to be sandwiched within the slide sliding portions 69, 69, when the support portion 53 rotates in the horizontal direction H1 in the direction indicated by R1 with the vertical axis 51 as the center of rotation, the shoulder cover portion 67 also moves in conjunction with that movement. That is, when the arm 15 is rotated, the shoulder cover 67 also moves in conjunction with it, making it difficult to see the shoulder joint 25, which is the internal skeleton, directly from the outside.

[0039] In this embodiment, a distinctive connection structure is provided between the thoracic skeleton 7a and the abdominal skeleton 5a. The thoracic skeleton 7a and the abdominal skeleton 5a are connected via a detachment prevention mechanism 73 that is rotatable in a horizontal direction H1 perpendicular to the vertical direction T1. The thoracic skeleton 7a and the abdominal skeleton 5a are connected to each other so that they can rotate in the horizontal direction H1, thereby widening their range of motion. However, if the thoracic skeleton 7a and the abdominal skeleton 5a are simply connected, there is a risk that they may come off. Furthermore, if they are fastened with screws to prevent them from coming off, this will restrict their rotational movement. Therefore, a structure that can prevent them from coming off while still allowing them to be rotatably connected is required.

[0040] The fall-off prevention mechanism 73 of this embodiment is characterized by the connection structure between the cylindrical connecting portion 5c of the abdominal skeleton 5a and the insertion hole 7c of the main body portion 7d of the thoracic skeleton 7a. Specifically, this is as follows.

[0041] The connecting portion 5c has a circumferential recessed groove 75 formed in the central region in the length direction, the circumferential recessed groove 75 continuing in the circumferential direction. A threaded hole 77 communicating with the insertion hole 7c is formed on the outer surface of the main body 7d facing the insertion hole 7c. The threaded hole 77 is formed in a position facing the circumferential groove 75 when the connecting portion 5c has been completely slidably inserted into the insertion hole 7c. A threaded portion 79 is threadedly engaged with the threaded hole 77 from the outer surface side of the main body 7d, and the tip of the threaded portion 79 faces the insertion hole 7c and is positioned within the groove of the circumferential groove 75. It is within the scope of the present invention whether the tip of the threaded portion 79 is in sliding contact with the circumferential groove 75 or not.

[0042] In this embodiment, the abdominal skeleton 5a and the thoracic skeleton 7a have the tip of the screw portion 79 facing the circumferential groove 75 of the connecting portion 5c inserted into the insertion hole portion 7c of the thoracic skeleton 7a, so that the connecting portion 5c can rotate in the horizontal direction H1 (rotate in the direction indicated by R3) within the insertion hole portion 7c and can be prevented from coming off in the vertical direction T1. [Industrial Applicability]

[0043] The present invention can be used in the joint structures of various movable dolls. [Explanation of symbols]

[0044] 1. Torso 3 Lower back 5 Abdomen 7 Chest 15 Arm 17 lower arm 21 Upper Arm 25 Shoulder joint 27 First member 37 Slide axis 43 Second member 45 Slide hole 47 Receiving part 53 Support part 59 Guide protrusion 63 Retaining part 67 Shoulder cover 69 Slide sliding part 73 Removal prevention mechanism A1 Upper arm opposition area A2 Allowable movement area H1 horizontal direction L1 Cylinder length direction

Claims

1. A movable doll including a shoulder joint portion between an upper end of an upper arm and an upper arm facing region of a torso that faces the upper end of the upper arm, the shoulder joint portion connecting the upper arm so that the upper arm can move, The shoulder joint portion is a first member having one end connected to the upper arm side; a second member disposed on the body portion side and connecting the other end of the first member, the second member has a slide hole portion through which the other end portion of the first member is slidably inserted, the other end of the first member is formed in a rod shape that protrudes a predetermined length from an outlet side of the slide hole portion when the other end of the first member is inserted into the slide hole portion and slidably assembled therein, The second member includes a support portion disposed on the trunk portion side so as to be rotatable in a horizontal direction about a vertical axis; a receiving part that is rotatably held by the support part via a horizontal axis and that has the sliding hole part;

2. the support portion has a bottom plate portion having a vertical axis and two vertical plate portions standing continuously from opposing sides of the bottom plate portion, 2. The joint structure for a doll according to claim 1, wherein the horizontal axis is bridged across the two vertical plate portions.

3. the shoulder joint portion is covered by a shoulder cover portion disposed between an upper end of the upper arm and an upper arm facing region of the torso facing the upper end of the upper arm so that the shoulder joint portion cannot be directly seen from the outside, 3. The joint structure for a doll according to claim 2, wherein the shoulder cover portion is configured to move in accordance with the movement of the shoulder joint portion.

4. A guide protrusion is provided on an outer surface of each of the vertical plate portions, 4. The joint structure for a doll according to claim 3, wherein the shoulder cover parts have slide sliding parts on opposing inner surfaces for slidably holding the guide protrusion parts.

5. 5. The doll joint structure according to claim 1, wherein the other end of the first member is provided with a retaining portion at a position a predetermined distance away from the exit side of the slide hole portion, thereby providing a movement allowance area between the exit side of the slide hole portion and the retaining portion.

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