JP7137175B2 - doll joint structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a joint structure of a so-called movable doll that is movable at a joint portion.

Movable dolls that can move at predetermined joints such as the neck, knees, elbows, and hips are widely accepted by consumers regardless of gender or age.
In particular, when it comes to whether or not it is possible to fine-tune the tilt of the head (the tilt of the neck), it is important to create realistic human-like facial expressions in a figure doll. It is very important as one of the product selection requirements for lovers who want dolls (figure dolls).
For example, the tilt of the human head (neck) in the front-rear direction is greater than the tilt in the left-right direction. In a conventional movable doll (figure) having a joint structure that supports the joint structure, since the tilt in the front-rear direction and the tilt in the left-right direction are the same, the fine adjustment and the like cannot be adjusted (expressed) well.
As a neck joint structure capable of greatly adjusting the inclination of the head (inclination of the neck), for example, a structure disclosed in Patent Document 1 has been proposed.

The neck joint structure disclosed in Patent Document 1 includes an upper joint part whose upper end side is connected to the head side, a lower joint part whose lower end side is connected to the body side, and the lower end side of these upper joint parts. and a cylindrical neck portion provided with upper and lower bearing portions that slidably connect the upper end sides of the lower joint portions.
A lower end of the upper joint portion connected to the upper and lower bearing portions and an upper end of the lower joint portion are provided with spherical connecting portions (ball joints) via cylindrical portions. The bearing portion is formed with a concave space that accommodates the spherical connecting portion and has a slidable spherical inner surface. That is, each coupling portion (ball joint) is housed within each bearing portion, and each cylindrical portion protrudes outward from the open peripheral surface portion of each bearing portion.
In the neck joint structure of Patent Document 1 having such a configuration, between the spherical connecting portion and the bearing portion of the upper joint portion and between the spherical connecting portion and the bearing portion of the lower joint portion , tilting the head (neck) in the front-rear direction and the left-right direction. That is, it is possible to express both the tilt in the front-rear direction and the tilt in the left-right direction by tilting motions at two points in the length direction of the neck. According to this, compared with the conventional joint structure which was configured with a single ball joint structure, it was possible to greatly express the tilt of the head (neck) in the front-rear direction.

However, if the neck has a joint structure that tilts at two points along the length of the neck, the tilting motion of the head (the tilting motion of the neck) may result in movements that are not realistic for humans. Therefore, there is a possibility that a sense of incongruity will be felt and that the sense of realism will be lost.
In addition, since the open peripheral surface of the bearing portion was on the same plane in the circumferential direction, the maximum inclination angle was the same in all 360 degrees including the front-rear direction and the left-right direction. That is, the states in which the respective cylindrical portions are in contact with the open peripheral portion are all set to be the same over 360 degrees. Therefore, it is possible to create realistic and delicate facial expressions of human beings in figure dolls, such as adjusting the head tilt (neck tilt) in the front-back direction more than the tilt of the head (neck tilt) in the left-right direction. It has been difficult to obtain a realistic movable doll (figure doll) that is solid to a human being.
Therefore, the inventor of the present application provides a solid and realistic movable doll (figure doll) that can create the delicate facial expression of a real human being in a figure doll while adopting a single ball joint structure. succeeded in

JP-A-2000-140448

The present invention was made in order to solve such problems of the prior art, and the purpose thereof is to realize the subtle facial expressions of a realistic human being while adopting a single ball joint structure. To provide a joint structure of a doll which can be produced in a figure doll.

In order to achieve the above object, the first technical means of the present invention is a joint structure that movably connects the head and body of a doll,
a first movable part that is connected at one end to a thoracic skeleton that constitutes the torso;
A second movable part, one end of which is connected to the head and the other end of which is connected to the first movable part ,
The first movable part is provided on the one end side and is connected to the thoracic skeleton so as to be tiltable in the front-rear direction, and the other end side is provided on the other end of the second movable part. a jointed part consisting of a spherical concave area with an open upper end that rotatably connects the sides,
The second movable part is provided on the one end side and is provided on a second connecting part that connects the head part, and is provided on the other end side and is rotated to a concave surface region of the jointed part of the first movable part. and a spherical joint portion that is movably connected,
The open area at the upper end of the jointed portion has an open peripheral surface portion formed to have a smaller diameter than at least the maximum diameter portion of the spherical joint portion,
The open peripheral surface portion has maximum height portions at mutually opposing left and right positions, and a front region and a and the rear region has front and rear tilting permissible portions cut deeper than the maximum height portion, and
The open peripheral surface portion is formed with a gently curved surface from the left and right maximum height portions to the front and rear tilting permissible portions,
In the outer peripheral surface of the spherical joint portion and the concave surface area of the jointed portion, rotation in the left-right direction about an imaginary center line connecting the second connecting portion of the second movable portion and the spherical joint portion on the same line is provided. Equipped with a blocking structure that blocks
A rod-shaped portion is provided between the second connecting portion and the spherical joint portion, and the rod-shaped portion is formed in a short cylindrical shape,
The boundary region between the rod-shaped portion and the spherical joint portion is substantially flush with the maximum height portion of the open peripheral surface portion of the jointed portion when the spherical joint portion is accommodated in the jointed portion. A joint structure of a doll characterized by being formed as follows.

In a second aspect of the present invention, in the first aspect of the present invention, the first connecting portion abuts on the upper surface portion of the thoracic skeleton to prevent the forward tilting of the first movable portion by a predetermined angle or more. The joint structure of the doll is characterized in that it is provided with a first restraining portion protruding in a shape .

In a third aspect of the present invention based on the second aspect of the present invention, on the upper surface of the thoracic skeleton, the first connecting portion abuts behind the first restraining portion to prevent the first movable portion from moving backward. The joint structure of the doll is characterized in that it is provided with a second restraining portion that prevents tilting beyond a predetermined angle .

The fourth aspect of the present invention is the third aspect of the present invention, wherein the thoracic skeleton is composed of a front member and a rear member,
The first restraint portion protrudes from a substantially central position of the upper surface portion of the front member,
A rib protrudes from a substantially central region of the front surface of the rear member,
the upper end of the rib is configured to be lower in the vertical direction than the upper ends of the first restraining portion and the rear member;
A pair of support pieces integrally protruded from the upper end of the rib at a predetermined interval in the left-right direction and rising upward in the vertical direction from the upper end of the rear member,
The joint structure of the doll is characterized in that the upper end of the rear member positioned rearwardly between the pair of support pieces functions as the second restraining portion .

In a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the first movable portion includes a first structure and a second structure which are formed in a substantially symmetrical shape and are separated and connected. possible division configuration,
A hemispherical portion is recessed in each of the upper ends of the inner surfaces of the first structure and the second structure, and by abutting the respective hemispherical portions, a jointed portion composed of the concave surface area is formed,
A flat plate portion integrally protrudes from the lower ends of the first structure and the second structure, and the first connecting portion is formed by abutting the flat plate portions,
The thoracic skeleton has a pair of support pieces that rise vertically upward and are integrally protruding so as to face each other,
The joint structure of the doll is characterized in that the first connecting portion is connected between the pair of support pieces so as to be tiltable in the front-rear direction about a horizontal axis.

According to the present invention, it is possible to provide a joint structure for a doll that is capable of creating realistic human delicate facial expressions in a figure doll while adopting a single ball joint structure.

1 is a schematic overall front view of a doll equipped with a joint structure of the present invention; FIG. 2 is a schematic front view of the doll shown in FIG. 1 with the upper torso skin removed and the head shown in phantom lines; FIG. FIG. 4 is a schematic front view showing a state of connection between a torso skeleton to be housed in the upper torso skin and the neck joint structure of the present embodiment; FIG. 2 is a schematic perspective view of a torso skeleton provided with the neck joint structure of the present embodiment; Fig. 2 is an exploded perspective view of the neck joint structure and trunk skeleton of the embodiment; It is a schematic perspective view of the neck joint structure of this embodiment. It is an exploded perspective view of the neck joint structure of this embodiment. FIG. 4 is a schematic plan view of the first movable portion in the neck joint structure of the embodiment; FIG. 4 is a schematic front view of the neck joint structure of the present embodiment, showing a state in which the first movable portion is separated; FIG. 4 is a schematic cross-sectional view of the neck joint structure of the present embodiment, showing a state in which the convex portion of the second movable portion is accommodated with a gap in the concave portion of the first movable portion; The neck joint structure of this embodiment is shown, (a) is a schematic front view, (b) is a schematic side view. The neck joint structure of this embodiment is shown, (a) is a state in which the head is tilted forward by tilting the second movable part forward until the rod-shaped part of the second movable part abuts the front tilting allowable part, (b) is a state in which the second movable part is tilted backward until the rod-shaped part of the second movable part abuts on the rearward tilting allowable part, and the head is tilted backward. The neck joint structure of this embodiment is shown, (a) is a state in which the first movable part is tilted forward from the state of FIG. ), the head is further tilted backward by tilting the first movable part backward, and (c) is the state in which only the first movable part is tilted forward without tilting the second movable part, and the head is tilted. It is a figure which shows partially the state which leaned forward and the 1st connection part of the 1st movable part contact|abutted to the 1st restraint part. The neck joint structure of this embodiment is shown, (a) is a state in which the second movable part is tilted to the left and the head is tilted to the left, and (b) is the second movable part. It is a state in which the head is tilted to the right by tilting the head to the right.

An embodiment of the present invention will be described below with reference to the accompanying drawings. It should be noted that this embodiment is merely one embodiment of the present invention, and is not to be construed as being limited to these, and can be designed within the scope of the present invention.
In this embodiment, the body, left and right arms detachably connected to the body, left and right legs detachably connected to the body, and a head detachably connected to the body A neck joint structure for connecting the torso and the head in a so-called doll body, which is provided with, will be described as an embodiment of the doll joint structure of the present invention.
In addition, in this embodiment, as one embodiment of the joint structure of the doll of the present invention, the neck joint structure will be used. It is also possible to employ it in a hip joint structure provided between the root part and an ankle joint structure.

[definition]
In the present invention, the term "doll" is not limited to general dolls having a torso, legs, arms and head, but also includes a so-called doll body without a head. . In addition, all dolls are applicable as long as at least the necessary parts such as legs and arms are movable. For example, it is not limited to dolls that imitate human males and females, but may also be dolls that imitate animals, imaginary creatures, robots, and the like.
"Torso (torso)" is generally considered to be the part of a doll excluding the arms, legs, and head. , and at least the head may be removed.
"Leg" refers to the foot, shin, knee, and around the base of the thigh (the part connected to the groin of the waist), and "thigh" refers to the base to the knee. The upper area is referred to as the "shin", the area below the knee to the ankle, the "knee" is the part that connects the thigh and the shin, and the "foot" is the ankle. to the tip (fingertip).
The "arm" consists of an upper arm connected to the torso, a lower arm bendably connected to the upper arm via the elbow, and a hand connected to the lower arm. The area from the base of the arm (connected to the shoulder) to the area above the elbow, "lower arm" refers to the area from the area below the elbow to the wrist, and "hand" refers to the area from the wrist to the tip (fingertip). up to.

1 and 2 show an overall outline of a doll adopting the doll joint structure of the present invention. FIG. 1 is a schematic front view seen from the front side, and FIG. FIG. 2 is a schematic front view of a state in which an upper torso skin 19 and a lower torso skin 21 are removed. Note that the head 7 is shown in phantom lines.

The doll illustrated in this embodiment includes a torso (one component) 1 , a head (the other component) 7 connected to the torso 1 via a neck joint structure 59 , and A doll called a so-called doll body, which includes left and right legs 5 connected to the body 1 and left and right arms 3 connected to the body 1, is adopted as one embodiment. In addition, the present embodiment has an external form that faithfully reproduces a nude female body.
Hereinafter, first, a schematic configuration of the torso (one of the components) 1 and the head (the other component) 7 of the doll of the present embodiment will be briefly described, and then a joint structure of the doll of the present invention will be described. A neck joint structure 59 that is an embodiment will be described. A detailed description of the left and right legs 5 and the left and right arms 3 will be omitted.

In this embodiment, the torso (one of the components) 1 is divided into an upper torso 11 including the chest 9 and a lower torso 17 lower than the upper torso 11 and including an abdomen 13 and a waist 15. (See Figure 1).

The torso 1 includes an upper torso skin 19 forming an upper torso 11, a lower torso skin 21 to form a lower torso 17, and a hard synthetic resin torso skeleton 23 covered by the upper torso skin 19 and the lower torso skin 21. (see FIGS. 1 and 2).

The upper torso skin 19 and the lower torso skin 21 are each made of a soft vinyl resin and formed into a hollow body that faithfully imitates the appearance of a naked female human body.
The outer appearance of each of the upper torso skin 19 and the lower torso skin 21 is arbitrary and not particularly limited and can be changed within the scope of the present invention.

As described above, the torso 1 of the present embodiment is divided into two parts, the upper torso 11 including the chest 9 and the lower torso 17 lower than the upper torso 11 and including the waist 15. It is also possible to construct the upper torso by integrating the upper torso and the lower torso with only the waist part, and the position to divide the torso into two parts can be arbitrarily changed in the length direction of the torso.
Also, a torso having a three-part structure in which the lower torso is further divided into an abdomen and a waist is within the scope of the present invention. Furthermore, even a completely undivided barrel (one-piece barrel skin) is within the scope of the present invention.
In addition, the torso 1 of the present embodiment is composed of soft vinyl skins (upper torso skin 19, lower torso skin 21) and a hard synthetic resin torso skeleton 23. It is within the scope of the present invention even if it is manufactured by Furthermore, it is also possible to adopt a solid body (solid body) made of a hard synthetic resin, or a body part that is divided into a plurality of parts, and this is within the scope of the present invention. In addition, in the case of a solid body (solid body) made of hard synthetic resin, the skeleton may not be provided.

In this embodiment, the torso skeleton 23 is accommodated in the upper torso skin 19 and the lower torso skin 21 . The torso skeleton 23 consists of a thoracic skeleton 25, an abdominal skeleton 51, and a waist skeleton 105 (see FIG. 2).

The thoracic skeleton 25 is sandwiched between the front member 27, the rear member 43, and the front member 27 and the rear member 43, and is rotatable about an axis perpendicular to the front member 27 and the rear member 43. It is composed of an arm connecting portion 45 and a pair of supporting pieces 47 capable of pivotally supporting the first connecting portion 63 of the first movable portion 61 that constitutes the neck joint structure 59 (see FIGS. 3 to 5). .

The front member 27 has a first surface portion 29 having a trapezoidal shape in which an upper side 29b is longer than a lower side 29a when viewed from the front, and an upper side 29b of the first surface portion 29 that is upwardly inclined toward the rear. a horizontally long rectangular second surface portion 31 in front view, a narrow rectangular upper surface portion 33 projecting rearward from an upper side 31a of the second surface portion 31, and a lower side of the first surface portion 29; a bottom portion 35 projecting rearward from 29a in the horizontal direction and having a rectangular shape with a rear side 35a at the same position as a rear side 33a of the top surface portion 33; It is integrally molded so as to cover the area surrounded by the back surface portion 37 that extends vertically across the The left and right side portions 39 are formed in a solid shape having a predetermined thickness (see FIGS. 3 to 5).

Two fitting holes 37a for rotatably fitting the first projections 45a of the left and right arm connecting portions 45 are formed in the rear surface portion 37 near the upper end, and the front member 27 is formed near the lower end. and the rear member 43 are formed with two fitting holes 37b into which one ends of the spacers 81 are fitted (see FIGS. 4 and 5).
In this embodiment, the spacer 81 is formed in a cylindrical shape to be fixed by the screw 41. However, the spacer 81 is not particularly limited to this embodiment and can be modified within the scope of the present invention.

Further, the bottom surface portion 35 is formed with a fitting hole portion 35b into which the fitting projection portion 57a of the third skeleton 57 of the ventral skeleton 51 is inserted and fitted.

The rear member 43 is formed in a flat plate shape, and is formed with two fitting holes 43a near the upper end for rotatably fitting the second projections 45d of the arm connecting portion 45, and near the lower end. Two fitting holes 43b are formed to fit the other end of the spacer 81 bridged between the front member 27 and the rear member 43 (see FIGS. 4 and 5).
In addition, a rib 43 c in the shape of a vertically elongated plate that abuts on the rear surface portion 37 of the front member 27 protrudes from the substantially central region of the front surface of the rear member 43 .
In this embodiment, a pair of support pieces 47 are projected from the upper end of the rib 43c with a predetermined interval in the left-right direction through the flat bottom surface 47d.

The arm connecting portion 45 has a sideways cylindrical body 45a having a fitting hole 45b into which a connecting shaft (not shown) of the arm portion 3 can be inserted. A first protrusion 45c and a second protrusion 45d are provided so as to be perpendicular to the fitting hole 45b. By rotatably fitting the first protrusion 45c and the second protrusion 45d into the fitting hole 37a of the front member 27 and the fitting hole 43a of the rear member 43, respectively, the arm connecting portion 45 is , the first protrusion 45c and the second protrusion 45d are arranged so as to be rotatable in the vertical direction about the rotation axis.

Each of the pair of support pieces 47 is formed in a flat plate shape having a chamfered upper end and an arc shape, and is coaxially formed with a shaft hole 47a. The shaft holes 47a and the shaft holes 64 of the first connecting portion 63 of the first movable portion 61 are communicated with each other, and the neck joint structure 59 is pivotally mounted through the shaft 49 so as to be tiltable back and forth.

The ventral skeleton 51 is composed of a first skeleton 53, a second skeleton 55, and a third skeleton 57, each of which is movably connected in the vertical direction (see FIGS. 2 and 3).

The first skeleton 53 is a fitting projection that is inserted and fitted into a fitting hole (not shown) opened at the upper end of the waist skeleton 105 so as to be rotatable in the left-right direction around the vertical axis. part 53a, and a bifurcated connecting part 53b integrally formed on the upper end of the fitting projection 53a and connected to the lower piece part 55d of the second skeleton 55 so as to be vertically rotatable around the horizontal axis. , consists of

The second frame 55 is pivotally supported by upper end support portions 55a and lower end support portions 55b which are bifurcated at the upper end and the lower end, respectively, and is provided so as to be vertically rotatable about a horizontal axis. It has a portion 55c and a lower piece portion 55d.

The third skeleton 57 includes a bifurcated connecting portion 57b that is connected to the upper piece portion 55c of the second skeleton 55 so as to be rotatable in the vertical direction around the horizontal axis, and a vertical direction extending from the upper end of the connecting portion 27b. and a fitting protrusion 57a that is integrally molded upward and is inserted and fitted into the fitting hole 35b of the bottom surface 35 of the thoracic skeleton 25 (front member 27).

Therefore, in the present embodiment, since the torso skeleton 23 is provided as described above, the fitting protrusion 53a of the first skeleton 53 and the fitting hole (not shown) of the waist skeleton 105 are vertically aligned. It can rotate in the left-right direction about the axis of the direction. In addition, the connection portion 53b of the first skeleton 53 and the lower piece portion 55d of the second skeleton 55 can be rotated vertically and horizontally. In addition, the connection portion 57b of the third skeleton 57 and the upper piece portion 55c of the second skeleton 55 can be rotated vertically and horizontally. Then, the fitting protrusion 57a of the third skeleton 57 and the fitting hole portion 35b of the bottom surface portion 35 of the thoracic skeleton 25 (front member 27) rotate in the left-right direction around the vertical axis. can be done.

The head (the other component) 7 may have any shape and is not particularly limited, but at least one end side of the second movable part 80 constituting the neck joint structure 59 can be connected. have. For example, in the present embodiment, although not shown, a hollow portion is formed in the head portion 7, and a fitting hole capable of fitting and connecting the head joint (head connecting portion) 88 of the second movable portion 80 is provided. A portion is provided on the lower end side of the head in communication with the hollow portion. Since the fitting hole is for fitting the head connecting part, it is formed to have a smaller diameter than the maximum diameter part of the head connecting part. After the maximum diameter portion of the connecting portion passes through the fitting hole portion and enters the hollow portion, the maximum diameter portion is hooked and connected to the fitting hole portion.

The neck joint structure 59 includes a first movable portion 61 whose one end side is connected to the torso skeleton (one component) 23, specifically the chest skeleton 25, and the head (the other component) 7. and a second movable portion 80 having one end connected to the first movable portion 61 and the other end connected to the first movable portion 61 (see FIGS. 2 to 5).

The first movable portion 61 includes a cylindrical portion 62, a first connecting portion 63 provided on one end side of the cylindrical portion 62, and a jointed portion 65 provided on the other end side of the cylindrical portion 62. (See Figures 3 to 5.)

The first connecting portion 63 is formed in a flat plate shape protruding from one end side (lower end side) of the cylindrical portion 62 and is formed with a shaft hole 64 . It communicates with the shaft hole 47a of 47, inserts the shaft 49, and is connected so as to be tiltable in the front-rear direction about the horizontal axis.
The shaft hole 64 of the first connecting portion 63 is formed on the distal end side, and the distal end face of the first connecting portion 63 is chamfered to form an arc shape.

The jointed portion 65 has an upper end that rotatably connects (accommodates) a spherical joint portion 91 formed on the other end side of the second movable portion 80 at the other end side (upper end side) of the cylindrical portion 62 . It has an open spherical concave area 66 on the inner surface.
The open area of the upper end of the jointed portion 65 is provided with an open peripheral surface portion 67 having a diameter smaller than at least the maximum diameter portion of the spherical joint portion 91 .

The open peripheral surface portion 67 is formed so as to extend outward continuously from the concave surface region 66, and has maximum height portions 68a and 68b at mutually opposed left and right positions. A front region 69a and a rear region 69b are cut deeper than the maximum height regions 68a and 68b on a second imaginary line L2 orthogonal to the first imaginary line L1 connecting 68a and 68b. It has front and rear tilting permissible portions 70a and 70b (see FIGS. 3 to 9).
Further, the open peripheral surface portion 67 is formed with a gently curved surface from the left and right maximum height portions 68a, 68b to the front and rear tilting allowable portions 70a, 70b.

In this embodiment, the front tilt-permitting portion 70a and the rear tilt-permitting portion 70b are formed with the same depth. It should be noted that, for example, it is possible to form the rear tilting allowable portion 70b shallower than the front tilting allowable portion 70a, and the design can be changed within the scope of the present invention.

The first movable portion 61 of the present embodiment has a two-part structure that can be separated and connected by a first structural body 71 and a second structural body 75 which are formed in a substantially symmetrical shape (see FIGS. 5 to 9).

Both the first structure 71 and the second structure 75 include semi-cylindrical portions 72 and 76, flat plate portions 73 and 77 projecting integrally from the lower ends of the semi-cylindrical portions 72 and 76 and having arcuate tips, and a semi-cylindrical portion. and semi-spherical portions 74, 78 having semi-spherical inner surfaces molded integrally with the upper ends of 72, 76, respectively.
A threaded hole 93 is formed from the outer surface to the inner surface of the semi-cylindrical portions 72 and 76, and the first component 71 and the second component 75 are butted against each other, and a screw 94 is screwed into the screw hole 93, thereby forming the second component. One movable part 61 is integrated. As a result, the cylindrical portion 62 is formed by the semi-cylindrical portions 72 and 76 of the first component 71 and the second component 75, and the first connecting portion 63 is formed by the flat plate portions 73 and 77. A jointed portion 65 having a spherical concave surface region 66 is formed by the semispherical portions 74 and 78 .

The second movable part 80 is provided on one end side and connected to the head part 7 , and the second movable part 80 is provided on the other end side and pivots to the concave surface area 66 of the jointed part 65 of the first movable part 61 . A spherical joint portion 91 that is movably connected is provided, and a columnar rod portion 90 is provided between the second connecting portion 82 and the spherical joint portion 91 .

The second connecting portion 82 has a first receiving portion 83 composed of a spherical portion 84 and a flat portion 85, and a short cylindrical shape having a diameter smaller than that of the first receiving portion 83 on the flat portion 85 of the first receiving portion 83. a second receiving portion 86 that is integrally formed to project; a head joint fixing portion 87 that is integrally formed to project from the upper surface of the second receiving portion 86 in a cylindrical shape having a diameter smaller than that of the second receiving portion 86; It is composed of a head joint (head connecting portion) 88 which is fitted with a part of the upper portion of the fixing portion 87 and which is fixed by a screw 89 .
The rod-shaped portion 90 is integrally formed downwardly from the center of the spherical portion 84 of the first receiving portion 83 that constitutes the second connecting portion 82 in the form of a short cylinder.

The spherical joint portion 91 is integrally formed from the lower end of the rod-shaped portion 90 to have a spherical shape with a diameter larger than that of the rod-shaped portion 90 . Further, the spherical joint portion 91 is accommodated in the spherical concave surface region 66 of the jointed portion 65 that constitutes the first connecting portion 63, and has a diameter that allows it to slide smoothly within the spherical concave surface region 66 without rattling. It is formed so as to have a larger diameter than the diameter of the open peripheral surface portion 67 of the jointed portion 65 so as not to fall off from the jointed portion 65 .

In this embodiment, when the spherical joint portion 91 is accommodated in the jointed portion 65, the boundary region 92 between the spherical joint portion 91 and the rod-shaped portion 90 and the maximum height portion of the open peripheral surface portion 67 of the jointed portion 65 68a and 68b are designed to be substantially flush with each other (see FIG. 3).
Note that the boundary region 92 between the spherical joint portion 91 and the rod-shaped portion 90 and the maximum height portions 68a and 68b of the open peripheral surface portion 67 of the jointed portion 65 do not need to be positioned substantially on the same plane within the scope of the present invention. It is possible to change the design within
In addition, in this embodiment, since the first movable part 61 has a two-part structure composed of the first structural body 71 and the second structural body 75 that can be integrated by screwing, the jointed part 65 is constructed. By screwing the screw 94 into the screw hole 93 with the spherical joint portion 91 sandwiched between the semispherical portion 74 of the first component 71 and the semispherical portion 78 of the second component 75, the first movable portion 61 and the second movable part 80 are integrated.

In the neck joint structure 59 of the present embodiment, the second movable portion A blocking structure 100 is provided to block lateral rotation about a virtual center line L3 connecting the second connecting portion 82 of 80 and the spherical joint portion 91 on the same line (Figs. See Figure 10).

The blocking structure 100 is composed of concave portions 101 and 102 provided on the first movable portion 61 and convex portions 103 and 104 provided on the second movable portion 80 .

The first movable portion 61 is provided with concave portions 101 and 102 that can accommodate the convex portions 103 and 104 provided on the outer surface of the spherical joint portion 91 of the second movable portion 80 in the spherical concave surface region 66 of the jointed portion 65 . ing.

The recesses 101 and 102 are cylindrically recessed with a predetermined size at positions facing each other on the inner surface of the hemispherical portion 74 of the first component 71 and the inner surface of the hemispherical portion 78 of the second component 75 . ing.
In this embodiment, the concave portion 102 provided in the hemispherical portion 78 of the second structural body 75 is formed in a spherical shape with a larger diameter than the concave portion 101 provided in the hemispherical portion 74 of the first structural body 71 ( 9 to 10).

The second movable portion 80 has short columnar protrusions 103 and 104 coaxially opposed to each other on the outer surface of the spherical joint portion 91 , in this embodiment, at the maximum diameter position of the spherical joint portion 91 . are protruded respectively.

The convex portions 103 and 104 are composed of a convex portion 103 accommodated in one concave portion 101 of the first movable portion 61 and a convex portion 104 accommodated in the other concave portion 102 . 104 is protruded in the shape of a short cylinder with a large diameter (see FIGS. 9 and 10).
Further, the convex portion 103 is accommodated so as to form a predetermined gap A1 between the inner bottom surface and the inner side surface of the concave portion 101 (see FIG. 10). The convex portion 104 is also housed so as to form a predetermined gap A2 between the inner bottom surface and the inner side surface of the concave portion 102 (see FIG. 10).
Further, in the present embodiment, the tip edge of the convex portion 103 is chamfered, but the convex portion 104 is not chamfered (see FIGS. 9 and 10).

Therefore, according to this embodiment, since the projections 103 and 104 are housed in the recesses 101 and 102 with the gaps A1 and A2, the following effects can be achieved.
For example, if the convex portions 103 and 104 of the second movable portion 80 are housed in the concave portions 101 and 102 of the first movable portion 61 without gaps, the head portion 7 can only be tilted in the front-rear direction. Although not possible, according to this embodiment, the protrusions 103 and 104 can move freely within the areas of the gaps A1 and A2 formed between the outer surfaces of the protrusions 103 and 104 and the inner surfaces of the recesses 101 and 102 .
Therefore, in addition to the movement of tilting the head 7 in the front-rear direction, the movement of turning it in the left-right direction is also possible. representation) can provide.

According to this embodiment, the combination of the concave portions 101 and 102 and the convex portions 103 and 104 allows the imaginary center line L3 connecting the second connecting portion 82 of the second movable portion 80 and the spherical joint portion 91 on the same line to be the axis. , the rotation of the second movable portion 80 in the left-right direction (the direction indicated by the arrow R in FIGS. 6 and 10) can be prevented.
In this way, since the rotation of the second movable portion 80 in the left-right direction can be prevented, the head joint fixing portion 87 of the second receiving portion 86 of the second connecting portion 82 constituting the second movable portion 80 is prevented from rotating. In addition, when the head joint (head connecting part) 88 is fixed via the screw 89 or the screw 89 is removed, the second movable part 80 does not turn carelessly, and the head No stress is felt in attaching and detaching the joint (head connecting part) 88. - 特許庁

According to this embodiment, since the neck joint structure 59 is configured in this way, the doll provided with the neck joint structure 59 of this embodiment can move the head as follows, for example.

First, FIG. 11 shows a state in which neither the first movable portion 61 nor the second movable portion 80 is operated. That is, the first movable portion 61 and the second movable portion 80 are arranged coaxially in the vertical direction, and the head 7 faces forward.
Then, for example, when the second movable portion 80 is rotated (tilted) forward from the state of FIG. 11 , the head 7 is slightly tilted forward and turned downward (looking obliquely downward). can be expressed (FIG. 12(a)). At this time, the bar-shaped portion 90 of the second movable portion 80 is in sliding contact with the tilting permissible portion 70a on the front side (FIG. 12(a)).
When the second movable portion 80 is rotated (tilted) rearward, the head 7 is tilted slightly rearward to represent a state of looking up obliquely upward (FIG. 12(b)). At this time, the bar-shaped portion 90 of the second movable portion 80 is in sliding contact with the tilting allowable portion 70b on the rear side (FIG. 12(b)).

Next, from the state shown in FIG. 12, that is, the state in which the bar-shaped portion 90 of the second movable portion 80 is brought into sliding contact with the tilting allowance portion 70a on the front side, for example, the first connecting portion 63 of the first movable portion 61 is moved to the axis. By rotating (tilting) forward about 49, it is possible to represent a state in which the head 7 is tilted further forward (Fig. 13(a)). Alternatively, when the head 7 is rotated (tilted) backward about the axis 49, it is possible to express a state in which the head 7 is tilted further backward and looking up (FIG. 13(b)). 13(a), the second movable portion 80 is rotated upward to be coaxial with the cylindrical portion 62 of the first movable portion 61 (only the second movable portion 80 is shown in FIG. 11). It is possible to return to the state), and to slightly raise the head down, and various expressions are possible (Fig. 13(c)).

Further, when the second movable portion 80 is rotated (tilted) from the state of FIG. It can be tilted in the horizontal direction (see FIGS. 14(a) and 14(b)).

Even in a neck joint structure that employs a single ball joint structure, such an expression is possible because the front region 69a and the rear region 68b are gently sloped from the maximum height regions 68a and 68b of the open peripheral surface 67. This is because the tilting permissible portions 70a and 70b are deeply cut with curved surfaces. That is, according to the present embodiment, the first movable portion 61 rotates (tilts) in the front-rear direction, the second movable portion 80 rotates (tilts) in the front-rear direction, and rotates (tilts) in the left-right direction. , and circular rotation (tilting) can be operated in any combination to obtain various head tilting motions. You can improve your interest.

Further, according to the present embodiment, since the rod-shaped portion 90 between the spherical joint portion 91 and the second connecting portion 82 is integrally formed in a short shape, the external appearance of the head connecting region is spoiled. No fear.

Suppose that the open peripheral surface portion 67 of the jointed portion 65 of the first movable portion 61 that rotatably connects the second movable portion 80 is configured to be positioned at the same height, that is, on the same plane over the circumferential direction. In this case, if the inclination of the head is to be greatly expressed, the inclination of the head cannot be greatly expressed unless the rod-shaped portion 90 is formed in a long shape. In addition, tilting in the left-right direction and tilting in the front-back direction can only be expressed in the same degree.
According to the present embodiment, the open peripheral surface portion 67 of the jointed portion 65 of the first movable portion 61 that rotatably connects the second movable portion 80 has the left and right maximum height portions 68a and 68b that face each other, Since the front and rear tilting permissible portions 70a and 70b are cut deeper than the maximum height portions 68a and 68b with gently curved surfaces from the maximum height portions 68a and 68b, the bar portion 90 is Even if it is not long (even if it is short), it is possible to greatly express the tilting movement in the front-rear direction, and it is possible to improve the aesthetic appearance of the rod-shaped portion 90 by reducing the possibility that the rod-shaped portion 90 will be directly viewed from the outside. .
Furthermore, according to the present embodiment, the front and rear tilting permissible portions 70a and 70b are cut deeper than the maximum height portions 68a and 68b with gently curved surfaces from the maximum height portions 68a and 68b. Because of this configuration, it is possible to express subtle angles such as obliquely downward and obliquely upward along the gentle curved surface.

In addition, in this embodiment, the trunk skeleton 23 is provided with a restraining portion 79 that restrains the first movable portion 61 of the neck joint structure 59 from tilting back and forth over a predetermined angle. This prevents the shaft from being damaged due to excessive load being applied to the shaft due to the tilting motion of a predetermined angle or more.

The restraining portion 79 includes a first restraining portion 79a that restrains forward tilting by a predetermined angle or more, and a second restraining portion 79b that restrains backward tilting by a predetermined angle or more.

The first restraint portion 79 a is provided on the upper surface portion 33 that constitutes the front member 27 of the thoracic skeleton 25 . The first deterring portion 79a is protruding from the second surface portion 31 side to the back surface portion 37 side at a substantially central position of the upper surface portion 33, and has a semicircular ridge in a cross-sectional view.
When the head 7 is tilted forward, the first connecting portion 63 of the first movable portion 61 abuts on the first restraint portion 79a when the head portion 7 is tilted forward by a predetermined angle or more (FIG. 13(c)). ), the head 7 can be prevented from tilting forward more than necessary (tilting beyond the state shown in FIG. 13(a) is restrained).

The second restraining portion 79b is formed by setting the upper end 43d of the rear member 43 of the thoracic skeleton 25 higher in the vertical direction than the position of the bottom surface 47d between the pair of support pieces 47, thereby When 63 tilts backward by a predetermined angle or more, the first connecting portion 63 abuts on the upper end 43d region to suppress further tilting, so the upper end 43d region functions as a second restraining portion 79b. .
At least only the upper end 43d region facing the bottom surface 47d is set high.
When the head 7 is tilted rearward, the first connecting portion 63 of the first movable portion 61 is configured to abut against the second restraint portion 79b, thereby suppressing excessive forward tilting of the head 7. (The tilt beyond the state of FIG. 13(b) is suppressed.).

The present invention can be applied to any joint structure that movably connects the constituent members of a doll, such as a hip joint structure provided between the groin position of the waist and the base of the thigh, and an ankle joint structure. It is possible to use

1 Torso 7 Head 59 Neck joint structure 61 First movable part 63 First connecting part 65 Jointed part 67 Open peripheral surface parts 68a, 68b Maximum height part 70a Front tilting allowable part 70b Rear tilting allowable part 80 Two movable parts 90 Rod-shaped part 91 Spherical joint part 100 Blocking structures 101, 102 Concave parts 103, 104 Convex parts A1, A2 Gap

Claims (5)

A joint structure that movably connects the head and body of a doll,
a first movable part that is connected at one end to a thoracic skeleton that constitutes the torso;
A second movable part, one end of which is connected to the head and the other end of which is connected to the first movable part ,
The first movable part is provided on the one end side and is connected to the thoracic skeleton so as to be tiltable in the front-rear direction, and the other end side is provided on the other end of the second movable part. a jointed part consisting of a spherical concave area with an open upper end that rotatably connects the sides,
The second movable part is provided on the one end side and is provided on a second connecting part that connects the head part, and is provided on the other end side and is rotated to a concave surface region of the jointed part of the first movable part. and a spherical joint portion that is movably connected,
The open area at the upper end of the jointed portion has an open peripheral surface portion formed to have a smaller diameter than at least the maximum diameter portion of the spherical joint portion,
The open peripheral surface portion has maximum height portions at mutually opposing left and right positions, and a front region and a and the rear region has front and rear tilting permissible portions cut deeper than the maximum height portion, and
The open peripheral surface portion is formed with a gently curved surface from the left and right maximum height portions to the front and rear tilting permissible portions,
In the outer peripheral surface of the spherical joint portion and the concave surface area of the jointed portion, rotation in the left-right direction about an imaginary center line connecting the second connecting portion of the second movable portion and the spherical joint portion on the same line is provided. Equipped with a blocking structure that blocks
A rod-shaped portion is provided between the second connecting portion and the spherical joint portion, and the rod-shaped portion is formed in a short cylindrical shape,
The boundary region between the rod-shaped portion and the spherical joint portion is substantially flush with the maximum height portion of the open peripheral surface portion of the jointed portion when the spherical joint portion is accommodated in the jointed portion. A joint structure of a doll characterized by being formed as follows. The upper surface of the thoracic skeleton is provided with a first restraining portion formed in a projecting shape to prevent the forward tilting of the first movable portion by a predetermined angle or more in contact with the first connecting portion. The articulated structure of the doll according to claim 1, characterized in that there is a On the upper surface of the thoracic skeleton, behind the first restraining part, a second restraining part is provided that abuts against the first connecting part and prevents the first movable part from tilting rearward by a predetermined angle or more. 3. The joint structure of the doll according to claim 2, characterized in that The thoracic skeleton is composed of a front member and a rear member,
The first restraint portion protrudes from a substantially central position of the upper surface portion of the front member,
A rib protrudes from a substantially central region of the front surface of the rear member,
the upper end of the rib is configured to be lower in the vertical direction than the upper ends of the first restraining portion and the rear member;
A pair of support pieces integrally protruded from the upper end of the rib at a predetermined interval in the left-right direction and rising upward in the vertical direction from the upper end of the rear member,
4. The joint structure for a doll according to claim 3, wherein the upper end of said rear member positioned rearward between said pair of support pieces functions as said second restraining portion. The first movable part has a divided structure that can be separated and connected by a first structure and a second structure that are formed in a substantially symmetrical shape,
A hemispherical portion is recessed in each of the upper ends of the inner surfaces of the first structure and the second structure, and a jointed portion composed of the concave surface area is formed by abutting the respective hemispherical portions,
A flat plate portion integrally protrudes from the lower end of each of the first structure and the second structure, and the first connecting portion is formed by abutting the flat plate portions,
The thoracic skeleton has a pair of support pieces that rise vertically upward and are integrally protruding so as to face each other,
5. The doll according to any one of claims 1 to 4, wherein the first connecting portion is connected between the pair of support pieces so as to be tiltable in the front-rear direction about a horizontal axis. joint structure.

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