Doll
The simplified doll shoulder joint structure allows for free arm movement by using a pair of arm connecting members retained by notches, addressing the complexity and assembly issues of multi-member joints.
Patent Information
- Application Number
- JP2024126465
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2026-02-13
AI Technical Summary
Existing doll shoulder joint structures require multiple joint members, leading to a complex and difficult assembly process while providing limited arm movement freedom.
A simplified shoulder joint structure using a torso with left and right arm connecting members and a holding member featuring notches to allow vertical swinging of the arms, with a pair of notches retaining each arm connecting member as the center of swing, enabling free movement with a simple configuration.
Achieves free movement of the arms with a simplified structure, allowing variable extension directions and horizontal position adjustments without the complexity of multiple joint members.
Smart Images

Figure 2026024119000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to dolls. [Background technology]
[0002] Conventionally, a shoulder joint structure for a doll such as a construction toy has been proposed, which includes a first joint member housed inside the torso and connected to the torso, a second joint member housed inside the torso and connected to the first joint member, and a third joint member connected to the second joint member and the arm of the doll body through an opening formed in the shoulder of the torso (see, for example, Patent Document 1). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-079913 Summary of the Invention [Problem to be solved by the invention]
[0004] Incidentally, the movement of the arms of a doll can be said to be sufficiently free if the direction in which they extend is variable and the position of the base of the arm (the joint between the arm and the torso) is variable in the horizontal direction.
[0005] However, the shoulder joint structure having the above-mentioned first to third joint members is complicated in structure because it requires three joint members to realize extremely complex movements of the arm. Furthermore, the increased number of parts makes assembly difficult.
[0006] An object of the present invention is to provide a doll that can move freely with a simple structure. [Means for solving the problem]
[0007] In one embodiment, the doll comprises a torso, a left arm connected to the torso, and a right arm connected to the torso, the torso having a left arm connecting member connected to the left arm, a right arm connecting member connected to the right arm, and a holding member for holding the left arm connecting member and the right arm connecting member, the left arm connecting member including a cylindrical held portion extending vertically downward from the front end of the connecting portion with the left arm, and the right arm connecting member extending vertically downward from the front end of the connecting portion with the right arm. The holding member includes a cylindrical retained portion extending vertically downward, and the retaining member includes a pair of notches extending from the front end toward the rear, one of the pair of notches retaining the left arm connecting member so that it can swing, with the retained portion of the left arm connecting member serving as the center of left arm swing in the vertical direction, and the other of the pair of notches retaining the right arm connecting member so that it can swing, with the retained portion of the right arm connecting member serving as the center of right arm swing in the vertical direction. [Effects of the Invention]
[0008] According to the above aspect, free movement can be achieved with a simple configuration. [Brief explanation of the drawings]
[0009] [Figure 1] FIG. 2 is an exploded perspective view showing a torso portion, a neck portion, and a torso-waist connecting portion in one embodiment. [Figure 2] FIG. 2 is a cross-sectional view showing the internal structure of the front part of the body in one embodiment. [Figure 3] FIG. 2 is an exploded perspective view showing the left arm according to one embodiment. [Figure 4] FIG. 2 is an exploded perspective view showing a waist portion according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0010] Hereinafter, a doll according to an embodiment of the present invention will be described with reference to the drawings.
[0011] The doll according to this embodiment comprises a torso 10, a left arm 20, a right arm 30, a waist 40, a neck 50, a torso-waist connector 90, and a head, left leg, and right leg (not shown).
[0012] FIG. 1 is an exploded perspective view showing a torso section 10, a neck section 50, and a torso-waist connector 90 in this embodiment.
[0013] FIG. 2 is a cross-sectional view showing the internal structure of the front part of the body 10. As shown in FIG.
[0014] FIG. 3 is an exploded perspective view showing the left arm 20. As shown in FIG.
[0015] FIG. 4 is an exploded perspective view showing the waist portion 40. As shown in FIG.
[0016] 1 to 4 are directions seen from the doll. The up-down direction is the vertical direction, and the front-back direction and the left-right direction are horizontal directions that are perpendicular to each other.
[0017] The doll according to this embodiment comprises a torso 10 (see FIGS. 1 and 2), a left arm 20 (see FIGS. 2 and 3), a right arm 30 (see FIG. 2), a waist 40 (see FIG. 4), a neck 50 (see FIGS. 1 and 2), and a torso-waist connector 90 (see FIG. 1). The doll is, for example, a plastic assembly model toy, and each of the torso 10, left arm 20, right arm 30, etc. is constructed by assembling a plurality of parts.
[0018] As shown in FIG. 1, the torso 10 has a left arm connecting member 11, a right arm connecting member 12, a holding member 13, a chest member 14, a back member 15, a below-shoulder member 16, and a shoulder member 17.
[0019] The left arm connecting member 11 is connected to the left arm section 20 (ball portion 21a of torso connecting member 21 shown in Figure 3). The left arm connecting member 11 has a ball receiving portion 11a, which is an example of a connecting portion with the left arm section 20. This ball receiving portion 11a has a hollow hemispherical shape that opens to the left side, and the ball portion 21a of the torso connecting member 21 of the left arm section 20 is fitted into this ball receiving portion 11a so that the orientation of the left arm section 20 can be changed. Note that the connecting portion of the left arm connecting member 11 with the left arm section 20 may be provided with another connecting portion, such as a ball portion, instead of the ball receiving portion 11a. When the connecting portion of the left arm connecting member 11 is a ball portion, the torso connecting member 21 of the left arm section 20 is provided with a ball receiving portion instead of the ball portion 21a.
[0020] The left arm connecting member 11 also has a held portion 11b. This held portion 11b has a cylindrical shape extending vertically downward from the front end of the ball receiving portion 11a. The held portion 11b has flange portions (large diameter portions) on the top and bottom, and a small diameter portion 11b-1 in the vertical center. It is sufficient that at least the small diameter portion 11b-1 of the held portion 11b has a cylindrical shape. When only the small diameter portion 11b-1 has a cylindrical shape, only the small diameter portion 11b-1 functions as the cylindrical held portion 11b.
[0021] The right arm connecting member 12 is connected to the right arm section 30 (the right arm section 30 is bilaterally symmetrical to the left arm section 20 shown in FIG. 3 , and therefore has a ball portion corresponding to the ball portion 21a of the torso connecting member 21 of the left arm section 20). The right arm connecting member 12 has a ball receiving portion 12a, which is an example of a connecting portion with the right arm section 30. This ball receiving portion 12a has a hollow hemispherical shape that opens to the right side, and the ball portion of the right arm section 30 is fitted into this ball receiving portion 12a so that the orientation of the right arm section 30 can be changed. Note that the connecting portion of the right arm connecting member 12 with the right arm section 30 may be provided with another connecting portion, such as a ball portion, instead of the ball receiving portion 12a. When the connecting portion of the right arm connecting member 12 is a ball portion, the torso connecting member of the right arm section 30 is provided with a ball receiving portion instead of a ball portion.
[0022] The right arm connecting member 12 also has a held portion 12b. This held portion 12b has a cylindrical shape extending vertically downward from the front end of the ball receiving portion 12a. The held portion 12b has flange portions (large diameter portions) on the top and bottom, and has a small diameter portion 12b-1 in the vertical center. It is sufficient that at least the small diameter portion 12b-1 of the held portion 12b has a cylindrical shape. When only the small diameter portion 12b-1 has a cylindrical shape, only the small diameter portion 12b-1 functions as the cylindrical held portion 12b.
[0023] The holding member 13 is shaped like a horizontal plate, with the front, left, and right ends bent downward. A pair of notches 13a, 13b are provided on the left and right sides of the front end of the holding member 13. As shown in FIG. 2, one notch 13a extends from the front end toward the rear and holds the held portion 11b of the left arm connecting member 11 at the small diameter portion 11b-1 of the held portion 11b. The other notch 13b extends from the front end toward the rear and holds the held portion 12b of the right arm connecting member 12 at the small diameter portion 12b-1 of the held portion 12b.
[0024] As shown in Figure 1, the chest member 14 and the back member 15 are fitted together with the holding member 13 sandwiched in the front-to-back direction. The chest member 14 forms the front surface of the torso section 10, and the back member 15 forms the back surface of the torso section 10. The left end of the chest member 14 preferably restricts the left-side swing range of the left arm connecting member 11 about the left arm swing center C1 (shown by the dashed-dotted line in Figures 1 and 2) as the swing center. The right end of the chest member 14 preferably restricts the right-side swing range of the right arm connecting member 12 about the right arm swing center C2 (shown by the dashed-dotted line in Figures 1 and 2) as the swing center.
[0025] The chest member 14 is positioned with the small diameter portions 11b-1, 12b-1 of the held portions 11b, 12b of the left arm connecting member 11 and the right arm connecting member 12 sandwiched between the pair of cutouts 13a, 13b of the holding member 13. A decorative portion 14a in the form of two X-shaped strings lined up one above the other is detachably fitted into the front of the chest member 14.
[0026] A pair of left and right shaft support portions 15a, 15b are provided to protrude forward from the lower portion of the back member 15. The pair of shaft support portions 15a, 15b support left and right shaft portions 92 of a torso-waist connecting portion 90, which will be described later.
[0027] The under-shoulder member 16 is disposed above the holding member 13, the chest member 14, and the back member 15. The lower portion of the under-shoulder member 16 has a downwardly projecting portion inserted and fitted into the holding member 13, and the upper portion has an upwardly projecting portion inserted and fitted into the shoulder member 17. The under-shoulder member 16 is also provided with a hole that passes through in the vertical direction, into which the lower end of the base member 51 of the neck portion 50, described below, is inserted and fitted. The under-shoulder member 16 preferably restricts the swing range of the right side of the left arm connecting member 11 around the left arm swing center C1. The under-shoulder member 16 also preferably restricts the swing range of the left side of the right arm connecting member 12 around the right arm swing center C2.
[0028] The shoulder member 17 is disposed above the under-shoulder member 16. A base member 51 of the neck portion 50 (described later) is inserted into the center of the shoulder member 17, and the lower end of this base member 51 is inserted into and fitted into the hole in the under-shoulder member 16, as described above.
[0029] As shown in FIG. 3, the left arm 20 has a torso connecting member 21, a fixing member 22, an upper arm member 23, an elbow joint member 24, a forearm member 25, a wrist member 26, a wrist joint member 27, and a hand member 28.
[0030] Torso connecting member 21 is provided so that ball portion 21a, which fits into ball receiving portion 11a (see FIG. 1) of the above-mentioned left arm connecting member 11, protrudes to the right. Furthermore, torso connecting member 21 has a hole penetrating in the front-to-rear direction, to which fixing member 22 is fixed so that fixing member 22 can swing relative to torso connecting member 21.
[0031] The fixing member 22 sandwiches the trunk connecting member 21 in the front-rear direction, with the front piece 22a and the rear piece 22b fitted together.
[0032] The lower part of the fixing member 22 is inserted and fitted into the upper arm member 23. The upper end of the upper arm member 23 is provided with a separate decorative part 23a.
[0033] The elbow joint member 24 is connected to the lower part of the upper arm member 23, and has a hole penetrating in the left-right direction at its lower end. The forearm member 25 is fixed to the hole penetrating in the front-rear direction of the elbow joint member 24 so that the forearm member 25 can swing relative to the elbow joint member 24.
[0034] The forearm member 25 has a left piece 25a and a right piece 25b fitted together, and a separate decorative portion 25c provided at the lower end.
[0035] The wrist member 26 is fixed to the lower end of the forearm member 25 and has a cylindrical shape that passes through the decorative portion 25c.
[0036] The wrist joint member 27 has a left piece 27a and a right piece 27b that fit together. The left piece 27a is inserted into and fitted onto the lower end of the wrist member 26, and the hemispherical portion of the lower end of the left piece 27a is pivotally fixed to the hemispherical portion of the upper end of the right piece 27b. This allows the right piece 27b to pivot left and right relative to the left piece 27a. The lower end of the right piece 27b is inserted into and fitted into the hand member 28.
[0037] The right arm 30 shown in FIG. 2 can be made bilaterally symmetrical to the left arm 20 shown in FIG. 3, and therefore a description thereof will be omitted.
[0038] The waist portion 40 shown in FIG. 4 is located below the right arm portion 30 and has an abdominal member 41, a skirt member 42, a belt member 43, a pants member 44, a front hip joint member 45, and a rear hip joint member 46.
[0039] The belly member 41 has a ball receiving portion 41a into which a ball portion 91 (see FIG. 1) of the torso / waist connecting portion 90 described later is inserted. The belly member 41 holds the torso / waist connecting portion 90 (torso portion 10) in the ball receiving portion 41a so that the torso / waist connecting portion 90 can tilt forward, backward, left, and right.
[0040] The skirt member 42 is placed on top of the waist member 41. The skirt member 42 includes a skirt main body piece 42a, a skirt back piece 42b, a front decorative portion 42c, a left decorative portion 42d, a right decorative portion 42e, and a back decorative portion 42f.
[0041] The skirt main body piece 42a forms the front, left and right parts of the skirt member 42, and the skirt rear piece 42b is fitted thereto.
[0042] A front decorative piece 42c is detachably fitted to the front of the skirt main body piece 42a. A left decorative piece 42d is detachably fitted to the left of the skirt main body piece 42a. A right decorative piece 42e is detachably fitted to the right of the skirt main body piece 42a. A back decorative piece 42f is detachably fitted to the back of the skirt back piece 42b.
[0043] The belt member 43 is fitted onto the upper part of the skirt member 42 .
[0044] The pants member 44 has a front piece 44a and a back piece 44b fitted together in the front-to-back direction, sandwiching a front hip joint member 45 and a back hip joint member 46 therebetween.
[0045] The front hip joint member 45 is fixed to the pants member 44 via a hole that penetrates in the front-rear direction so that the front hip joint member 45 can swing relative to the pants member 44.
[0046] A ball portion 45a provided to protrude from the left side of the front hip joint member 45 is fitted into a ball receiving portion of the left leg (not shown) so that the left leg can swing.
[0047] The rear hip joint member 46 is located behind the front hip joint member 45 and is fixed to the pants member 44 through a hole that penetrates in the front-rear direction so that the rear hip joint member 46 can swing relative to the pants member 44.
[0048] A ball portion 46a provided to protrude from the right side of the rear hip joint member 46 is fitted into a ball receiving portion of the right leg (not shown) so that the right leg can swing.
[0049] As shown in FIG. 1, the neck portion 50 has a base member 51, a neck body member 52, a decorative member 53, and a head connecting member .
[0050] The base member 51 passes through the shoulder member 17 and, as described above, has its lower portion inserted and fitted into the hole in the under-shoulder member 16. The base member 51 is provided with a ball portion 51a that protrudes upward.
[0051] The neck main body member 52 has a ball receiving portion (not shown) into which the ball portion 51a of the base member 51 is inserted and fitted. The neck main body member 52 holds the base member 51 at this ball receiving portion so that the neck main body member 52 can tilt back and forth and left and right relative to the base member 51.
[0052] A belt-shaped decorative member 53 is placed on the upper part of the neck body member 52.
[0053] The upper part of the neck body member 52, which passes through the head connecting member 54, is inserted and fitted into the lower part of the head connecting member 54. A ball part 54a is provided at the upper part of the head connecting member 54, which is inserted and fitted into a ball receiving part of the head (not shown). The head holds the head connecting member 54 at the ball receiving part so that the head can tilt back and forth and left and right relative to the head connecting member 54.
[0054] The head, not shown, has a face, hair, and hat.
[0055] As described above, the ball portion 45a of the front hip joint member 45 is fitted into the ball receiving portion (not shown) of the left leg (not shown).
[0056] As described above, the ball portion 46a of the rear hip joint member 46 is fitted into the ball receiving portion (not shown) of the right leg (not shown).
[0057] 1 connects the torso section 10 and the waist section 40. The torso / waist connector 90 has a ball section 91 and left and right shaft sections 92.
[0058] The ball portion 91 protrudes downward from the center portion in the left-right direction of the left-right shaft portion 92. As described above, the ball portion 91 is fitted into the ball receiving portion 41a of the abdominal member 41 of the waist portion 40. This allows the torso / waist connecting portion 90 (torso portion 10) to be held by the abdominal member 41 so that it can tilt forward, backward, left, and right. It is preferable that the torso / waist connecting portion 90 and the waist portion 40 are connected by a ball joint. Therefore, a ball receiving portion may be provided in place of the ball portion 91 of the torso / waist connecting portion 90, and a ball portion may be provided in place of the ball receiving portion 41a of the abdominal member 41 of the waist portion 40.
[0059] The left-right shaft portion 92 extends in the left-right direction and is supported by a pair of shaft support portions 15a, 15b between the chest member 14 and the back member 15. As a result, the left-right shaft portion 92 is held inside the torso portion 10 so that the torso portion 10 can swing in the front-to-rear direction. In other words, with the left-right shaft portion 92 supported by the pair of shaft support portions 15a, 15b, the torso portion 10 swings in the front-to-rear direction around the left-to-right shaft portion 92 as the swing center.
[0060] In the present embodiment described above, the doll comprises a torso 10, a left arm 20 connected to the torso 10, and a right arm 30 connected to the torso 10. The torso 10 has a left arm connecting member 11 connected to the left arm 20, a right arm connecting member 12 connected to the right arm 30, and a holding member 13 that holds the left arm connecting member 11 and the right arm connecting member 12. The left arm connecting member 11 includes a cylindrical held portion 11b that extends vertically downward from the front end of the connecting portion with the left arm 20 (for example, ball receiving portion 11a). The right arm connecting member 12 includes a cylindrical held portion 12b that extends vertically downward from the front end of the connecting portion with the right arm 30 (for example, ball receiving portion 12a). The holding member 13 includes a pair of notches 13a, 13b that extend rearward from the front end. One notch 13a of the pair of notches 13a, 13b swingably holds the left arm connecting member 11 with the held portion 11b of the left arm connecting member 11 as the vertical left arm swing center C1. The other notch 13b of the pair of notches 13a, 13b swingably holds the right arm connecting member 12 with the held portion 12b of the right arm connecting member 12 as the vertical right arm swing center C2.
[0061] As a result, with a simple configuration in which the torso 10 is provided with a pair of cutouts 13a, 13b and the left arm connecting member 11 and the right arm connecting member 12 held by the pair of cutouts 13a, 13b, the left arm connecting member 11 and the right arm connecting member 12 can be swung about the vertical left arm swing center C1 and right arm swing center C2 as swing centers. Furthermore, if the connecting portion between the left arm connecting member 11 and the left arm 20 and the connecting portion between the right arm connecting member 12 and the right arm 30 connect the left arm 20 and the right arm 30 in a manner that allows them to swing, the direction in which the left arm 20 and the right arm 30 extend can be changed. Thus, according to this embodiment, free movement of the left arm 20 and the right arm 30 can be achieved with a simple configuration.
[0062] In addition, in this embodiment, the held portions 11b, 12b of the left arm connecting member 11 and the right arm connecting member 12 have small diameter portions 11b-1, 12b-1 in the center in the vertical direction, and the pair of notches 13a, 13b of the holding member 13 hold the held portions 11b, 12b of the left arm connecting member 11 and the right arm connecting member 12 at the small diameter portions 11b-1, 12b-1.
[0063] As a result, the vertical positions of the left arm connecting member 11 and the right arm connecting member 12 can be restricted by the pair of notches 13a, 13b of the holding member 13. Therefore, the left arm 20 and the right arm 30 can be freely moved with an even simpler configuration.
[0064] In this embodiment, the doll further comprises a waist section 40 located below the torso section 10, and a torso-waist connector 90 that connects the torso section 10 and the waist section 40. This torso-waist connector 90 has a left-right axis section 92 that extends in the left-right direction, and is connected to the waist section 40 below this left-right axis section 92 by a ball joint (for example, ball section 91), and the left-right axis section 92 is held inside the torso section 10 so that the torso section 10 can swing back and forth.
[0065] As a result, with a simple configuration using the torso-waist connector 90, not only the left arm 20 and the right arm 30 can be freely moved, but also the torso 10 can be freely moved. [Explanation of symbols]
[0066] 10. Torso 11 Left arm connecting member 11a Ball receiving part (connecting part) 11b Retained part 11b-1 Small diameter part 12 Right arm connecting member 12a Ball receiving part (connecting part) 12b Retained part 12b-1 Small diameter part 13 Retaining member 13a, 13b Notch 14 Chest material 14a Decorative part 15 Back member 15a,15b Shaft support part 16 Lower shoulder member 17 Shoulder member 20 Left arm 21 Body connecting member 21a Ball part 22 Fixing member 22a front piece 22b Posterior piece 23 Upper arm member 23a Decorative part 24 Elbow joint member 25 Forearm member 25a left side 25b Right side 25c decorative part 26 Wrist member 27 Wrist joint member 27a left side 27b Right side 28 Hand parts 30 Right arm 40 Lumbar region 41 Abdominal material 41a Ball receiving part 42 Skirt member 42a Skirt body piece 42b Back of skirt 42c Front decoration 42d Left decorative part 42e Right decorative part 42f Back decoration part 43 Belt member 44 Pants material 44a front piece 44b Posterior piece 45 Anterior hip joint component 45a Ball part 46 Posterior hip joint component 46a Ball part 50 Neck 51 Base material 51a Ball part 52 Neck body member 53 Decorative materials 54 Head connecting member 54a Ball part 90 Torso-waist connection part 91 Ball part 92 Left and right axis part C1 Left arm swing center C2 Right arm swing center
Claims
1. A torso and a left arm connected to the torso; a right arm connected to the torso, The body portion is a left arm connecting member connected to the left arm portion; a right arm connecting member connected to the right arm portion; a holding member for holding the left arm connecting member and the right arm connecting member, the left arm connecting member includes a cylindrical held portion extending vertically downward from a front end of a connecting portion with the left arm portion, the right arm connecting member includes a cylindrical held portion extending vertically downward from a front end of a connecting portion with the right arm portion, the holding member includes a pair of notches extending from a front end toward a rear end, one of the pair of notches holds the left arm connecting member so that the held portion of the left arm connecting member can swing around the center of left arm swing in the vertical direction, The other notch of the pair of notches holds the right arm connecting member so that the held portion of the right arm connecting member can swing around the center of the right arm swing in the vertical direction. A doll characterized by
2. the held portions of the left arm connecting member and the right arm connecting member have small diameter portions in the vertical center, The pair of notches of the holding member hold the held portions of the left arm connecting member and the right arm connecting member at the small diameter portions.
2. The doll according to claim 1.
3. a waist portion located below the torso portion; Further provided is a torso / waist connecting portion that connects the torso portion and the waist portion, The torso-waist connecting portion has a left-right shaft portion extending in the left-right direction, and is connected to the waist portion below the left-right shaft portion by a ball joint, The left and right shaft portions are held inside the body portion so that the body portion can swing in the front-rear direction.
3. The doll according to claim 1 or 2.
Citation Information
Patent Citations
Shoulder joint structure of doll body
JP2017079913A