JP2021023660A - Joint structure and doll body - Google Patents

Abstract

To provide a joint structure improving flexibility of a movable part of a doll body.SOLUTION: A joint structure 100 of a doll body 2 comprises a first swing link 110 connected to a lower-back base body 101 and being swingable in the swing direction, and a second swing link 120, one end of which is connected to the first swing link 110 and, the other end of which is connected to a leg part 6, and that is swingable in the swing direction with respect to the first swing link 110. The other end (a third swing bearing 123) of the second swing link 120 is configured to be able to be pulled out from or inserted into a lower back 43 in a stepwise manner by multistep swing by the first swing when the first swing link 110 swings to the lower-back base body 101 and the second swing when the second swing link 120 swings to the first swing link 110.SELECTED DRAWING: Figure 8

Description

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

As an example of a toy equipped with a movable part, a doll body that can be made to pose in various poses like a human is known. For example, Patent Document 1 describes a toy that can be enjoyed by moving a movable portion.

JP-A-2017-159139

Among the dolls with moving parts, the ones that are especially popular with boys are the transformation heroes that appear in manga, anime, special effects movies, games, novels, etc. (hereinafter collectively referred to as the "original"). It is a doll that reproduces characters such as soldiers and large humanoid robots.

When a user purchases a doll body of a character that appears in the original, he definitely wants to make it the same pose as he saw in the original. However, in order for the doll body of the character appearing in the original to pose as in the original, the movable range of the movable part is narrow, and the reproduction of the pose is often incomplete. From the user's point of view, the flexibility of the moving parts was insufficient, so it was impossible to approach the pose of the original, and there were times when I felt disappointed.

An object to be solved by the present invention is to realize a joint structure capable of improving the flexibility of moving parts of a doll body.

Aspect of the present invention is a joint structure of a doll whose legs can swing in a predetermined swing direction with respect to the lumbar substrate, which is connected to the lumbar substrate and has the swing direction with respect to the lumbar substrate. A first swing link capable of swinging, one end connected to the first swing link, the other end connected to the leg, and in the swing direction with respect to the first swing link. A second swing link that can swing is provided, and a first swing in which the first swing link swings with respect to the lumbar substrate and a second swing with respect to the first swing link. It is a joint structure in which the other end can be pulled out stepwise from the lumbar region or inserted stepwise by multi-step swinging due to the second swinging of the link.

Further, depending on the position of the joint structure in the doll body, the other end portion can be displaced to a position above the one end portion and a position below the one end portion by the multi-step swing in the front view of the doll body. , May be.

Regarding the connecting structure of the first swing link and the second swing link, specifically, the first swing link has an arc-shaped elongated hole portion along the swing direction, and the first swing link is provided. The dynamic link is located outside the lumbar substrate in the front view, and the first oscillating link has a connecting portion with one end on the side surface on the lumbar substrate side, and the second oscillating link. May be configured such that is located between the lumbar substrate and the first swing link, and the other end is connected to the leg through the elongated hole.

Further, the lumbar substrate has an arcuate groove along the swing direction on the side surface on the side of the first swing link, and the first swing link has the groove on the surface facing the lumbar substrate. It may have a convex portion that fits into.

Further, the lumbar substrate has an arcuate groove along the swing direction on the side surface on the side of the first swing link, and the first swing link has the groove on the surface facing the lumbar substrate. It has a convex portion that fits into the groove, and the range of the first swing is defined within the movable range of the convex portion with respect to the groove portion.
The range of the second swing may be defined within the movable range of the other end portion with respect to the elongated hole portion.

Further, the leg portion has a thigh portion and a lower leg portion, the thigh portion has an upper part and a lower part, and the upper end portion of the upper part is the said second swinging link. It may be said that the lower part is connected to the other end and the lower part can swing in the swing direction with respect to the upper part.

Further, the lower leg portion has a lower leg upper part and a lower leg lower part, and the connecting surface between the lower leg upper part and the lower leg lower part is an inclined surface inclined in the front-rear direction from the front upper part to the rear lower part. The lower leg lower part may be rotatably connected to the lower leg upper part along the inclined surface.

Further, the leg portion has a foot portion at the lower end, and the foot portion includes a heel portion, a central portion, a connecting part that pulls out and connects the central portion to the heel portion, and the central portion. It may be configured to have a toe portion that is swingably connected in the vertical direction with respect to the toe portion.

Another aspect is a doll body having the joint structure.

Further, the doll body includes an upper arm portion and a forearm portion swingably connected to the upper arm portion, and the forearm portion has an upper arm side part and a hand side part, and the upper arm portion. The connecting surface between the side part and the hand side part has a front-back inclined surface inclined in the front-rear direction from the body rear side upper arm side of the doll body toward the body front side hand side, and the hand side part has the upper arm. The side parts may be rotatably connected to the front and rear inclined surfaces.

According to the present invention, it is possible to develop a joint structure of a doll body that can improve the flexibility of moving parts.

Front view of the doll in an upright position. Perspective external view of joint structure. An exploded perspective view of the joint structure. Partial cross-sectional view of the longitudinal longitudinal section around the lumbar substrate. The transition diagram of the joint structure for explaining the action of raising a leg (No. 1). FIG. 2 is a transition diagram of a joint structure for explaining the action of raising a leg. FIG. 3 is a transition diagram of a joint structure for explaining the movement of raising a leg. FIG. 4 is a transition diagram of a joint structure for explaining an operation of raising a leg. FIG. 3 is a partial cross-sectional view showing a joint structure when the first swing and the second swing are omitted and the third swing is performed. A side view showing a detailed configuration example of a leg. An exploded view showing a detailed configuration example of the legs. Partial cut view around the thigh with the legs viewed from the side. FIG. 1 is a transition diagram of a joint structure for explaining the action of raising the thigh of a leg. FIG. 2 is a transition diagram of a joint structure for explaining the action of raising the thigh of a leg. FIG. 3 is a transition diagram of a joint structure for explaining the action of raising the thigh of a leg. Side view around the foot. Exploded view around the foot. A transition diagram (No. 1) for explaining the motion of bending the foot. The transition diagram (2) for explaining the motion of bending the foot. The transition diagram (3) for explaining the motion of bending the foot. Side view around the arm (partially disassembled).

FIG. 1 is a front view of the doll body 2 in an upright posture, which is an example of an embodiment to which the present invention is applied. The direction notation by the arrows shown in each figure is up and down for the doll body 2 (Y-axis direction; positive direction is up), front and back for the doll body 2 (Z-axis direction; positive direction is front), and doll body 2 Indicates the left-right (X-axis direction; positive direction is left) direction. The directions in the following description shall be based on this.

The doll body 2 is a toy that reproduces characters based on manga, anime, special effects movies, games, novels, etc. as three-dimensional objects. The doll body 2 of the present embodiment has a design imitating a humanoid robot, and is a toy made by assembling parts for each part.

The parts of the doll body 2 include a head portion 3, a body portion 4, an arm portion 5, and a leg portion 6. The body 4 has a chest 41 which is an upper part, an abdomen 42 which is a central part, and a lumbar part 43 which is a lower part. The basic form of the doll body 2 is a human being with a body 4 at the center, one head 3 at the top, arms 5 at the left and right sides, and two legs 6 at the bottom. It is a form that imitates. In addition to this form, the doll body 2 may be provided with a backpack-like accessory (for example, a back vernier in the case of a robot weapon) on the back, wings may be provided on the back, or a tail may be attached. Absent. Each has the basic form of the doll body 2 of the present embodiment, and can be said to be the doll body of the present embodiment.

By the way, the doll body 2 is a humanoid robot soldier that appears in manga and anime, and is designed with the theme of armored warriors.
In particular, in the doll body 2, by providing the joint structure 100 on the lumbar portion 43, the flexibility is improved and the degree of freedom that the leg portion 6 can be sufficiently raised is secured, and the user can use the doll body 2 as the original. It has a structure that allows you to play in the same pose.

FIG. 2 is a perspective external view of the joint structure 100. FIG. 3 is an exploded perspective view of the joint structure 100. The joint structure 100 is a structure in which the leg portion 6 is swingably connected to the lumbar portion 43. The joint structure 100 includes a lumbar base 101, a first swing link 110 on each of the left and right sides (meaning a positive side and a negative side in the X-axis direction with the lumbar base 101 in between), and a second swing link 120 on each of the left and right sides. And each of the left and right thigh joints 130.

FIG. 4 is a partial cross-sectional view of the longitudinal longitudinal section around the lumbar substrate 101 in the front-rear direction.
The lumbar portion 101 is a key part for connecting each portion of the lumbar portion 43. As shown in FIGS. 2 to 4, an abdominal connecting hole 102 that fits with a protrusion provided on the abdomen 42 is provided on the upper portion of the lumbar base 101. An exterior mounting portion 103 for mounting a front lumbar exterior part 43f, a rear lumbar exterior part 43r, and left and right lateral lumbar exterior parts 43s is provided on the front, rear, left, and right upper outer circumferences of the lumbar base 101. A link support portion 104 for connecting and supporting the first swing link 110 and the second swing link 120 is provided below the lumbar base 101.

The link support portion 104 is a portion extending below the lumbar portion 101, and is a thin plate-shaped portion in the left-right direction. The link support portion 104 has first swing shafts 105 on the left and right sides on the front side, penetrates left and right at a position rearward from the first swing shaft 105, and is long in the vertical direction. It has an elongated hole-shaped first groove portion 106 and a second groove portion 107 that are curved in an arc shape centered on. The second groove portion 107 has an elongated hole shape that penetrates left and right at a position further rearward of the first groove portion 106, is long in the vertical direction, and is curved in an arc shape centered on the first swing shaft 105.

The first swing link 110 is a link that is connected to the lumbar substrate 101 and can swing along the YZ plane with the vertical swing direction as the swing direction. Specifically, the first swing link 110 has a first swing bearing 111 that fits with the first swing shaft 105 of the lumbar base 101. When the first swing shaft 105 is fitted to the first swing bearing 111, the first swing link 110 is swingably connected to the lumbar substrate 101.

The first swing link 110 has an elongated hole portion 112 that is arcuate in the vertical direction along the YZ plane.

Further, of the two left and right first swing links 110, one of the first swing links 110 (in this embodiment, the first swing link 110 on the right side) is located on the surface facing the lumbar base 101. It has two left-right connecting convex portions 113 (113a, 113b, 113c). The other first swing link 110 (in this embodiment, the first swing link 110 on the left side) has three left and right connecting holes 114 (in this embodiment) that are fitted with the left and right connecting convex portions 113 on the surface facing the lumbar base 101. 114a, 114b, 114c).

The first left-right connecting convex portion 113a has an outer diameter that is slidably fitted in the first groove portion 106 of the link support portion 104.
The second left-right connecting convex portion 113b has an outer diameter that is slidably fitted in the second groove portion 107 of the link support portion 104.

The two left and right first swing links 110 are connected with the link support portion 104 of the lumbar base 101 interposed therebetween. Specifically, in this connection, the first left-right connection convex portion 113a inserts the first groove portion 106 of the link support portion 104 and fits into the first left-right connection hole 114a. The second left-right connecting convex portion 113b is fitted into the second left-right connecting hole 114b by inserting the second groove portion 107 of the link support portion 104. The third left-right connecting convex portion 113c is fitted into the third left-right connecting hole 114c at a position outside the link support portion 104, that is, at a position not sandwiching the link support portion 104. Then, the two left and right first swing links 110 can swing integrally with the first swing shaft 105 as an axis. If the joint structure 100 is viewed from the front in this state, the left and right first swing links 110 will be located on the left and right outside of the lumbar base 101 (see FIG. 2).

Further, the first swing link 110 has a connecting portion 115 for connecting and pivotally supporting the second swing link 120. The connecting portion 115 is a second swing bearing having through holes in the left-right direction.

The second swing link 120 has a protruding second swing shaft 121 along the left-right direction at one end (the lower end in the drawing in FIG. 3). The second swing link 120 is swingably connected to the first swing link 110 by fitting the second swing shaft 121 into the connecting portion 115 that corresponds to the second swing bearing.

Further, the second swing link 120 is provided with a recess (or a hole) at the other end (the upper end in the drawing in FIG. 3) along the same direction as the second swing shaft 121. It has a third swing bearing 123 which is. The outer diameter of the third swing bearing 123 is set to a dimension that allows it to fit into the elongated hole portion 112 of the first swing link 110 and slide.

The second swing link 120 fits the second swing shaft 121 into the connecting portion 115 at a position sandwiched between the lumbar base 101 and the first swing link 110, and lengthens the third swing bearing 123. It is assembled to the first swing link 110 so as to be fitted and inserted into the hole 112. The first swing link 110 is assembled to the lumbar base 101 with the second swing link 120 assembled. When the joint structure 100 is viewed from the front in this state (see FIG. 2), the second swing link 120 is located between the lumbar base 101 and the first swing link 110.

Then, the second swing link 120 connects the thigh joint 130 to which the leg portion 6 is connected to the third swing bearing 123.

The femur joint 130 is a movable part that connects the second swing link 120 and the leg portion 6. Specifically, the femur joint 130 has a front base 131 and a rear base 132 that are rotatably connected to a shaft in the front-rear direction by a bearing. A leg connecting rod 133 extends from the front base 131, and a third swing shaft 134 that functions as a lumbar connecting rod extends from the rear base 132. The third swing shaft 134 fits with the third swing bearing 123 of the second swing link 120.

Therefore, the thigh joint 130 is connected to the second swing link 120 so as to be rotatable in the front-rear direction with the third swing shaft 134 as the left-right axis, and the front base 131 and the rear base 132 are unevenly fitted. The leg connecting rod 133 can be swung around the axis intersecting the left-right direction with the axis in the front-rear direction.

When the thigh joint 130 is assembled to the second swing link 120 and the leg portion 6 is connected to the thigh joint 130, the second swing link 120 has a leg at the other end through the elongated hole portion 112 of the first swing link 110. It means that it is connected to the part 6. More specifically, the other end is connected to the leg 6 via the femur joint 130.

Next, the operation of the joint structure 100 will be described.
5 to 8 are transition diagrams of the joint structure 100 for explaining the operation of raising the leg portion 6, and the transitions are made in the order of the drawing numbers. In these figures, some components are omitted for ease of understanding, and some of them are partially cut. Further, the femur joint 130 and the leg portion 6 are shown through a long dashed line. The shape of the leg 6 is also abbreviated.

FIG. 5 corresponds to a state in which the doll body 2 is upright.
Focusing on the lumbar base 101 and the first swing link 110, the first left-right connecting convex portion 113a is located at the upper end of the elongated hole of the first groove portion 106, and the convex portion can move relative to the lumbar base 101. It is at the upper limit of the range. Further, the second left-right connecting convex portion 113b is located at the upper end of the elongated hole of the second groove portion 107, and is also at the upper limit position of the relative movable range for the convex portion. Looking at the side view focusing on the relative positional relationship with the first swing shaft 105, both the first left-right connecting convex portion 113a and the second left-right connecting convex portion 113b are above the first swing shaft 105. In position.

Focusing on the first oscillating link 110 and the second oscillating link 120, the third oscillating bearing 123 is located at the upper end of the elongated hole of the elongated hole portion 112, and the first oscillating link for the bearing. It is at the upper limit of the relative movement range with respect to 110.

To raise the leg 6, first, as shown in FIG. 6, the first swing link 110 is rotated with respect to the lumbar base 101 about the first swing shaft 105 to swing downward. This is called "first swing". By the first swing, the first left-right connecting convex portion 113a can be moved to the lower end portion of the elongated hole of the first groove portion 106, which is the lower limit position of the movable range for the convex portion. Further, the second left-right connecting convex portion 113b can be moved to the lower end portion of the elongated hole of the second groove portion 107, which is the lower limit position of the movable range for the convex portion.

Next, as shown in FIG. 7, the second swing link 120 is rotated with respect to the first swing link 110 about the second swing shaft 121 to swing downward. This is called "second swing". By the second swing, the third swing bearing 123 can move to the lower end of the long hole of the long hole 112, which is the lower limit of the relative movable range with respect to the first swing link 110 for the bearing.

As a result, due to the multi-stage swing of the first swing and the second swing, the third swing bearing 123, the third swing shaft 134, and the thigh joint 130 are the exterior parts (front lumbar exterior parts) of the lumbar portion 43. It is gradually pulled out from the internal space surrounded by 43f, the rear lumbar exterior part 43r, and the lateral lumbar exterior part 43s). In this state, the other end of the second swing link 120, that is, the third swing bearing 123 is one end of the second swing link 120, that is, the second swing due to the multi-stage swing in the front view of the doll body 2. This means that the displacement is from a position above the shaft 121 to a position below the shaft 121. Of course, if the first swing and the second swing are traced in the reverse order, the third swing bearing 123, the third swing shaft 134, and the femur joint 130 are gradually inserted into the original positions in the lumbar portion 43. Can be

Next, as shown in FIG. 8, the thigh joint 130 and the leg 6 are rotated with respect to the second swing link 120 about the third swing bearing 123, and the leg 6 is the front lumbar exterior part 43f. Swing forward until it touches the lower end of the. This is called "third rocking".

Since the third swing bearing 123 is pulled out from the lumbar portion 43 by the multi-stage swing of the first swing and the second swing, the swingable angle of the leg portion 6 due to the third swing with respect to the lumbar portion 43 is , The third swing bearing 123 is much larger than the case where the third swing is performed (see FIG. 9) without pulling out the third swing bearing 123 from the lumbar portion 43 (the first swing and the second swing are omitted). That is, the joint structure 100 that connects the lumbar portion 43 and the leg portion 6 improves the flexibility as compared with the conventional case. For example, if the doll 2 is carried with a gun-type attack weapon, the user can carry the doll 2 with a knee-shooting pose, a knee-bending pose, a front kick or knee-kicking pose in a close quarters battle scene, and a leg. You can raise it to pose for overcoming obstacles.

Next, the detailed structure of the leg portion 6 will be described.
FIG. 10 is a side view showing a detailed configuration example of the legs 6 of the doll body 2. FIG. 11 is an exploded view of the same. In these figures, some components are omitted for ease of understanding, and some of them are partially cut.

The leg portion 6 includes a thigh portion 7, a lower leg portion 8, a foot portion 9, a knee exterior part 10, and a knee interior part 11.

The thigh portion 7 further includes an upper thigh part 71 and a lower thigh part 72.

The upper thigh part 71 further includes a rod fitting portion 73 and a fourth swing shaft 74.
The rod fitting portion 73 is a hole that rotatably fits the leg connecting rod 133 (see FIG. 3) of the femur joint 130, and functions as a bearing for the leg connecting rod 133. Therefore, the upper end of the upper thigh part 71 is connected to the third swing bearing 123 at the other end of the second swing link 120 via the femur joint 130.

The fourth swing shaft 74 is a protrusion that functions as a shaft for swingably connecting the lower thigh part 72 to the upper thigh part 71, and is left and right on each of the left and right side surfaces of the lower end portion of the upper thigh part 71. It is projected outward.

The lower thigh part 72 has a front lower part 75 and a rear lower part 76 that are forward in the upright posture of the doll body 2, and is assembled so as to sandwich the upper thigh part 71 from the front and back.

FIG. 12 is a view that also serves as a partial cut view around the thigh portion with the leg portion 6 viewed from the side and an exploded view around the knee portion. For ease of understanding, the outline of the upper thigh part 71 is shown by a broken line.

The front lower part 75 has an opening 751 in which the front upper end portion of the femur upper part 71 is exposed and a front shaft guide groove 752 in the front upper part.

The front shaft guide groove 752 is a recess dug in the left and right inner side surfaces. The rear lower part 76 also has a rear shaft guide groove 761 dug on the left and right inner side surfaces. The front shaft guide groove 752 and the rear shaft guide groove 762 are provided at opposite positions where the insides of both grooves communicate with each other when the front lower part 75 and the rear lower part 76 are combined. Then, when the front lower part 75 and the rear lower part 76 are combined, the front shaft guide groove 752 and the rear shaft guide groove 762 form a guide groove in which the fourth swing shaft 74 is slidably fitted. To do.
Therefore, the lower thigh part 72 is configured to swing with respect to the upper thigh part 71 on the fourth swing axis 74 (in the upright posture of the doll body 2) along the YZ plane of the leg portion 6. It will be.

Further, the rear lower part 76 of the lower thigh part 72 has a fifth swing shaft 77 protruding in each of the left and right directions on both left and right side surfaces of the lower end portion. The fifth swing shaft 77 is a shaft that functions as an axis of the knee joint of the leg portion 6, and is provided on the posterior side of the front-rear center of the leg portion 6.

The lower leg portion 8 has an upper leg upper part 81 and a lower leg lower part 82. The former corresponds to the part on the gastrocnemius side of the human body, and the latter corresponds to the part below the gastrocnemius muscle.

The lower leg upper part 81 is composed of two pieces, a left part 83 and a right part 84. The left part 83 and the right part 84 are interlocked with the fifth swing bearing 85 into which the fifth swing shaft 77 can be inserted and the interlocking protrusion 12 of the knee interior part 11 into which the fifth swing shaft 77 can be inserted into the upper end portion on the opposite surface side. It has a protrusion guide groove 86 and.

The knee interior part 11 is a cover that covers the front of the fifth swing shaft 77 and the fifth swing bearing 85, has a thickness in the left-right direction, and has a semicircle when viewed from the side. In the upright state of the doll body 2, the upper part of the knee interior part 11 is inserted into the internal space formed by the lower thigh part 72.

Further, a knee exterior part 10 is attached to the front surface of the lower leg upper part 81. The knee exterior part 10 corresponds to the "knee pad" of the armor in design.

The lower leg upper part 81 and the lower leg lower part 82 refer to the lower leg rotation shaft 87 projecting diagonally upward from the upper inclined surface 821 (the surface whose normal line faces diagonally backward and upward) of the lower leg part 82. By rotatably fitting into the lower leg rotary bearing hole 88 formed in the lower inclined surface 811 (the surface whose normal line faces diagonally forward and downward), the lower leg rotary shaft 87 is rotatably connected. A protrusion is projected from the upper end of the lower leg rotation shaft 87, and the protrusion is caught inside the lower leg rotation bearing hole 88 to prevent it from coming off.

When the state in which the lower leg upper part 81 and the lower leg lower part 82 are connected is viewed from the side, the connecting surface F1 of both (see FIG. 10; the mating surface of the upper inclined surface 821 and the lower inclined surface 811) is upright of the doll body 2. It can be said that the posture has an inclined surface inclined in the front-rear direction from the front upper part to the rear lower part. Then, the lower leg lower part 82 is rotatably connected to the lower leg upper part 81 along the inclined surface.

Next, the operation of the leg portion 6 will be described.
13 to 15 are transition diagrams of the joint structure 100 for explaining the operation of raising the thigh of the leg portion 6, and the transitions are in the order of the drawing numbers. In these figures, some components are omitted for ease of understanding, and some of them are partially cut.

When the above-mentioned first swing to the third swing are performed, as shown in FIG. 13, the leg portion 6 is in a state of being swung forward. The front surface of the upper thigh part 71 facing the front in the upright posture of the doll body 2 hits the lower end of the front lumbar exterior part 43f of the lumbar portion 43, and is in the upper limit position where the third swing cannot be performed any more.

From this state, the lower thigh part 72 is further rotated by the fourth swing shaft 74 to swing upward with respect to the upper thigh part 71 (at this time, the fourth swing shaft 74 is inside the lower thigh part 72). The upper thigh part 71 swings with respect to the lower thigh part 72 by rotating while sliding in the guide groove from the lower end to the upper end), and the thigh portion 7 is as shown in FIG. It will be in a state of rising further upward.

As described above, there is no conventional structure in which the thigh portion 7 can be bent in the middle to improve the flexibility of the leg portion 6. The multi-step swing from the first swing to the fourth swing makes it possible for the doll body 2 to pose with its thighs raised high.

From the state of FIG. 14, when the lower leg portion 8 is further swung with respect to the thigh portion 7 with respect to the thigh portion 7 by the fifth swing shaft 77, the leg portion 6 is moved to the knee as shown in FIG. It can be in a bent state. In the leg 6 of the doll body 2, the fifth swing axis 77 corresponding to the knee joint is set at a position posterior to the front-back center line of the leg 6, so that the fifth swing axis 77 is on the front-back center line. It is possible to bend the knee more than the configuration set in.

By bending the knee, the user can make the doll body 2 perform, for example, a knee kick pose. When the knee is bent, the lower end of the thigh portion 7 and the lower leg portion 8 and the upper end are separated from each other to open the kneecap, but since the knee interior part 11 is located there, the appearance can be maintained.

Further, if the lower leg lower part 82 is rotated with respect to the lower leg upper part 81 by the lower leg rotation axis 87, the user can further make the doll body 2 take a pose in which the foot portion 9 is twisted inward or outward.

Next, the detailed structure of the foot portion 9 will be described.
FIG. 16 is a side view around the foot portion 9. FIG. 17 is an exploded view of the same. The foot portion 9 includes a heel portion 91, a central portion 92 corresponding to the position of the arch, a connecting part 93 that connects the central portion 92 to the heel portion 91 so as to be able to be pulled out and swingable in the vertical direction, and a central portion. It has a toe portion 94 that is swingably connected to the 92 in the vertical direction, and an instep cover 95.

The heel portion 91 is composed of two pieces, a symmetrical right part 911 and a left part 912. The right part 911 and the left part 912 have an annular sixth swing bearing 913 provided at the front upper end portion and a guide portion 914 provided in the internal space.

The two left and right sixth swing bearings 913 are fitted so as to sandwich the sixth swing shaft 181 protruding from the left and right of the foot joint 180 provided at the lower end of the lower leg lower part 82 from the left and right. The portion 9 is connected to the lower leg portion 8 so as to be swingable in the front-rear direction.

The guide portion 914 has a groove structure in which the seventh swing shaft 931 projecting from the left and right side surfaces on the rear end side of the connecting part 93 is slidably fitted, and forms an arc in which the rear side is slightly upward when viewed from the side surface. There is. When the right part 911 and the left part 912 are assembled so as to sandwich the connecting part 93 from the left and right, the seventh swing shaft 931 is sandwiched and held by the left and right guide portions 914, and the connecting part 93 is moved back and forth with respect to the heel portion 91. It is slidable and swingable up and down.

Eighth swing shafts 932 are projected on the left and right side surfaces on the front end side of the connecting part 93, and are oscillatingly connected to the central portion 92 in the vertical direction by the protrusions.

The central portion 92 is composed of two pieces, an upper part 921 and a lower part 922, and is assembled by covering the lower part 922 with the upper part 921 so as to sandwich the connecting part 93 from above and below. Inside the central portion 92, an eighth swing bearing 923 that rotatably holds the eighth swing shaft 932 of the connecting part 93 and a toe portion 94 by covering the lower part 922 with the upper part 921 and assembling. A ninth swing bearing 924 that rotatably holds the ninth swing shaft 941 projecting from both left and right ends of the rear end extension portion is formed.

The upper part 921 has a ball portion 925 projecting from the upper part 921. An instep cover 95 is connected to the ball portion 925 by a ball joint on the upper surface.

The instep cover 95 has an upper cover 952 having a socket portion 951 connected to the ball portion 925, and a lower cover 953 connected so as to be swingable up and down on the toe side of the cover.

Next, the operation of the foot portion 9 will be described.
18 to 20 are transition diagrams for explaining the operation of bending the foot portion 9, and the transitions are made in the order of the drawing numbers. In these figures, some components are omitted for ease of understanding, and some of them are drawn through.

As shown in FIG. 18, in the upright posture of the doll body 2, the heel portion 91, the central portion 92, and the toe portion 94 are in close contact with each other in the front-rear direction. Focusing on the connecting part 93, the seventh swing shaft 931 is located at the rear end position of the guide portion 914. The foot portion 9 in this state is in a state where the soles of the feet are flat and not warped.

From here, when the toe portion 94 is swung relatively upward with respect to the central portion 92 by the ninth swing shaft 941 while swinging the leg portion 6 backward, as shown in FIG. The foot portion 9 is in a state in which the base of the toes touches the ground and the arch to the heel is lifted.

Further, while the leg portion 6 is additionally swung backward, the central portion 92 is separated from the heel portion 91 and is relatively swung upward. As shown in FIG. 20, the foot portion 9 is a foot. The back is warped. At this time, focusing on the connecting part 93, the seventh swing shaft 931 is located at the front end position of the guide portion 914. The limit of warpage of the foot portion 9 is caused by the upper rear end of the instep cover 95 coming into contact with the front lower end of the lower leg lower part 82.

In this way, since the foot portion 9 of the doll body 2 can be warped in the same manner as the human foot, it is possible to make the doll body 2 pose to realistically reproduce the feeling of kicking the ground.

As described above, according to the present embodiment, the flexibility of the lower body of the doll body 2 is improved, and various poses that could not be realized in the past can be realized.

[Modification example]
The embodiment to which the present invention can be applied is not limited to the above example, and components can be added, omitted, or changed as appropriate.

(Modification example 1)
In the above embodiment, a configuration example is shown in which the left and right first swing links 110 are integrally connected with the link support portion 104 interposed therebetween, but the left and right first swing links 110 are not connected and are separated from each other. It may be configured to be connected to the link support portion 104.

Specifically, the first groove portion 106 and the second groove portion 107 are not holes that penetrate the link support portion 104 to the left and right, but literal grooves that are recessed on each of the left and right side surfaces. Then, protrusions that engage with the groove are provided in each of the left and right first swing links 110 in place of the left and right connecting convex portions 113 and the left and right connecting holes 114. Then, the left and right first swing links 110 may be assembled so as to swing along the left and right surfaces of the link support portion 104, respectively.

(Modification example 2)
Further, in the above embodiment, the connecting structure of the lower leg upper part 81 and the lower leg lower part 82 makes it possible to realize a state in which the lower leg portion 8 of the leg portion 6 is twisted to the left and right. A similar connecting structure can be applied to the forearm configuration of the arm 5.

Specifically, FIG. 21 is a side view showing a configuration example when the connection structure of the lower leg upper part 81 and the lower leg lower part 82 in the above embodiment is applied to the left arm portion 5 of the doll body 2.

In this configuration, the arm portion 5 has an upper arm portion 51 and a forearm portion 53 oscillating (rotating) with respect to the upper arm portion 51 by an elbow joint 52. The forearm portion 53 has an upper arm side part 54 and a hand side part 55.

The upper arm side part 54 has an inclined surface 541 whose normal line faces obliquely backward and downward, and has a forearm rotation shaft 542 projecting in the same direction from the inclined surface 541. The tip of the forearm rotation shaft 542 has an enlarged diameter portion.

The hand side part 55 is composed of two pieces, a right part 551 and a left part 552, and by assembling them so as to face each other, the forearm rotation shaft 542 and the hand joint 56 are rotatably sandwiched. Specifically, the hand-side part 55 has an inclined surface 553 whose normal line faces diagonally upward forward, and a forearm rotating shaft 542 that penetrates the internal space along the same direction is rotatably fitted therein. It has a rotary bearing 554.

That is, the connecting surface between the upper arm side part 54 and the hand side part 55 (the boundary surface between the inclined surface 541 and the inclined surface 553) is in the front-rear direction from the upper arm side on the posterior side of the body of the doll body 2 toward the hand side on the front side of the body. The front-rear inclined surface is inclined, and the hand-side part 55 is rotatably connected to the upper arm-side part 54 along the front-rear inclined surface. Therefore, the relative twist between the upper arm side part 54 and the hand side part 55 in the forearm portion 53 is similar to the relative twist between the lower leg upper part 81 and the lower leg lower part 82 in the lower leg portion 8 of the above embodiment. It will be possible.

(Modification example 3)
Further, although the doll body 2 is illustrated as an example of the movable toy, the movable toy to which the joint structure 100 of the present invention can be applied is not limited to the humanoid shape but also to the joint portion of an animal (whether real or fictitious). It can be applied in the same way. At that time, in the above embodiment, the joint structure 100 is used as the hip joint, but if it is a double-headed character, the joint structure 100 may be used as the neck joint.

2 ... Doll body 4 ... Body 5 ... Arms 6 ... Legs 7 ... Thighs 8 ... Lower legs 9 ... Feet 11 ... Knee interior parts 43 ... Waist 53 ... Forearm 54 ... Upper arm side parts 55 ... Hands Side parts 71 ... Upper thigh parts 72 ... Lower thigh parts 74 ... 4th swing axis 77 ... 5th swing axis 81 ... Upper leg parts 82 ... Lower leg parts 85 ... 5th swing bearing 87 ... Lower leg rotation shaft 88 ... Lower leg rotary bearing hole 91 ... Crus part 92 ... Central part 93 ... Connecting parts 94 ... Toe part 100 ... Joint structure 101 ... Waist base 104 ... Link support part 105 ... First swing shaft 106 ... First groove part 107 ... Second groove part 110 ... 1st oscillating link 111 ... 1st oscillating bearing 112 ... Long hole portion 115 ... Connecting portion (2nd oscillating bearing)
120 ... 2nd swing link 121 ... 2nd swing shaft 123 ... 3rd swing bearing 130 ... Thigh joint 134 ... 3rd swing shaft 180 ... Foot joint 181 ... 6th swing shaft 541 ... Inclined surface 542 ... Forearm rotation shaft 553 ... Inclined surface 554 ... Forearm rotation bearing 913 ... 6th swing bearing 923 ... 8th swing bearing 924 ... 9th swing bearing 931 ... 7th swing shaft 932 ... 8th swing shaft 941 ... 9 Swing shaft F1 ... Connecting surface

Claims (10)

It is a joint structure of a doll body in which the legs can swing in a predetermined swing direction with respect to the lumbar base.
A first swing link that is connected to the waist substrate and can swing in the swing direction with respect to the waist base.
A second rocking link, one end of which is connected to the first rocking link and the other end of which is connected to the leg and is capable of swinging in the swinging direction with respect to the first rocking link.
The first swing in which the first swing link swings with respect to the lumbar substrate and the second swing in which the second swing link swings with respect to the first swing link. A joint structure in which the other end can be pulled out stepwise from the lumbar region or inserted stepwise by multi-step swinging. The joint structure according to claim 1, wherein the other end portion can be displaced to a position above the one end portion and a position below the one end portion by the multi-step swing in the front view of the doll body. The first swing link has an arc-shaped elongated hole portion along the swing direction.
The first swing link is located outside the lumbar substrate in the front view.
The first swing link has a connecting portion with the one end portion on the side surface of the lumbar portion side surface.
The second swing link is located between the lumbar substrate and the first swing link, and the other end is connected to the leg through the elongated hole.
The joint structure according to claim 1 or 2. The lumbar substrate has an arc-shaped groove along the swing direction on the side surface on the side of the first swing link.
The first swing link has a convex portion that fits into the groove portion on a surface facing the lumbar portion substrate.
The joint structure according to any one of claims 1 to 3. The lumbar substrate has an arc-shaped groove along the swing direction on the side surface on the side of the first swing link.
The first swing link has a convex portion that fits into the groove on the surface facing the lumbar substrate.
The range of the first swing is defined within the movable range of the convex portion with respect to the groove portion.
The range of the second swing is defined within the movable range of the other end portion with respect to the elongated hole portion.
The joint structure according to claim 3. The leg has a thigh and a lower leg.
The thigh has an upper part and a lower part.
The upper end of the upper part is connected to the other end of the second swing link.
The lower part is configured to swing in the swing direction with respect to the upper part.
The joint structure according to any one of claims 1 to 5. The lower leg portion has an upper leg upper part and a lower leg lower part.
The connecting surface of the upper leg upper part and the lower leg lower part has an inclined surface inclined in the front-rear direction from the front upper part to the rear lower part.
The lower crus part is rotatably connected to the upper crus part along the inclined surface.
The joint structure according to claim 6. The leg has a foot at the lower end and has a foot.
The foot is
Heels and
In the center and
A connecting part that pulls out and connects the central part to the heel part,
A toe portion that is swingably connected to the central portion in the vertical direction,
Have,
The joint structure according to any one of claims 1 to 7. A doll body having the joint structure according to any one of claims 1 to 8. Upper arm and
A forearm that is swingably connected to the upper arm and
Equipped with
The forearm portion has an upper arm side part and a hand side part.
The connecting surface between the upper arm side part and the hand side part has a front-back inclined surface inclined in the front-rear direction from the upper arm side on the back side of the body of the doll body toward the hand side on the front side of the body.
The hand-side part is rotatably connected to the upper arm-side part along the front-rear inclined surface.
The doll body according to claim 9.