Rocking toy
The rocking toy design addresses the complexity of gear-based mechanisms by using an eccentric cam member and cam follower to create a simple, gear-free rocking motion, enhancing design flexibility and user control.
Patent Information
- Application Number
- JP2023189358
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-06
- Publication Date
- 2025-05-19
AI Technical Summary
Conventional rocking toys with gear mechanisms require a gearbox to prevent user access, leading to a complex structure and design obstacles.
A rocking toy design that uses a rocking body with a cam follower below a first rotation axis and an eccentric cam member that contacts the cam follower, supported eccentrically around a second rotation axis intersecting with the first axis, eliminating the need for gears.
This configuration provides a simple, gear-free rocking toy that allows for easy manual operation and enhanced design flexibility, while ensuring the rocking body stops at any position without further movement.
Smart Images

Figure 2025077283000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a rocking toy.
Background Art
[0002] Conventionally, rocking toys that can be enjoyed by rocking members have been disclosed. For example, Patent Document 1 discloses a rocking toy in which a driving force from a rotary drive mechanism that rotates a drum of a music box operates a cam via a plurality of gears, and the cam rocks a rocking body that abuts against the cam. A human - shaped hand or the like is connected to the rocking body by a string, and the human - shaped hand or the like can be operated in accordance with the sound from the music box.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In a rocking mechanism provided with a plurality of gears, it may be necessary to provide a gear box or the like so that the user's fingers cannot access the gears. Then, the structure of the toy itself becomes complicated, and it may also be an obstacle in the design of the toy.
[0005] An object of the present invention is to provide a rocking toy having a simple configuration that does not use gears.
Means for Solving the Problems
[0006] The rocking toy according to one aspect of the present invention includes a rocking body rotatably supported around a first rotation axis and having a cam follower below the first rotation axis, and an eccentric cam member provided so as to be able to contact the cam follower and rotatably supported eccentrically around a second rotation axis disposed below the first rotation axis. The first rotation axis and the second rotation axis are arranged to intersect when viewed from the vertical direction.
Effect of the Invention
[0007] According to the above aspect, a rocking toy with a simple configuration without using gears can be provided.
Brief Description of the Drawings
[0008]
Figure 1
Figure 2
Figure 3
Figure 4
Embodiments for Carrying Out the Invention
[0009] FIG. 1 shows a parade vehicle toy 1 that imagines a running vehicle running in a parade held at a festival or a theme park. The vehicle on the front side (the left side in FIG. 1) of the parade vehicle toy 1 is a first parade vehicle toy 2 that imagines a train. The vehicle on the rear side (the right side in FIG. 1) of the parade vehicle toy 1 is a vehicle towed by the first parade vehicle toy 2, and is a second parade vehicle toy 3 that imagines a night sky with a moon floating. The second parade vehicle toy 3 includes a rocking toy 10 including a rocking body 11 imitating a crescent moon, an airplane toy 4 suspended from the rocking body 11, and the like.
[0010] The second parade vehicle toy 3 includes a base member 30 provided with a plurality of rotatable wheels 31 on the lower surface. The base member 30 is formed in a substantially flat plate shape, imaging a cloud. As shown in FIG. 2, the rocking toy 10 is provided on the base member 30. The rocking toy 10 has a first rotation shaft support member 12 erected on the base member 30. The first rotation shaft support member 12 is formed in a substantially plate shape with a substantially triangular shape, and a first rotation shaft CL1 is formed at the upper end portion serving as the top.
[0011] As shown in FIG. 3, a bearing hole 12a having an axis concentric with the first rotation shaft CL1 is provided at the top portion of the first rotation shaft support member 12 having a substantially triangular shape (see also FIG. 2). The rocking body 11 has a boss 11a erected from the back surface of the rocking body 11 rotatably supported by the bearing hole 12a. The boss 11a is located substantially in the middle of the length of the rocking body 11 in the vertical direction. The boss 11a is inserted into a concave hole 13a of a rotating member 13 disposed at a position facing the boss 11a. A star-shaped decorative member 14 (see also FIG. 2) is attached to the rotating member 13 on the side opposite to the hole 13a. The rotating member 13 has the boss 11a and the decorative member 14 fixed thereto, and the axis of each part is concentric with the first rotation shaft CL1. The outer peripheral surface 13b of the rotating member 13 is rotatably supported by the inner peripheral surface 12a1 of the bearing hole 12a. As shown in FIGS. 2 and 3, the rocking body 11 is provided with a cloud-shaped cam follower 11b below the first rotation shaft CL1.
[0012] On the other hand, as shown in FIG. 2, the rocking toy 10 has a second rotation shaft support member 15 erected on the base member 30. The second rotation shaft support member 15 has a second rotation shaft CL2 formed at the upper end portion. As shown in FIG. 4, the second rotation shaft support member 15 is provided with a bearing hole 15a having an axis concentric with the second rotation shaft CL2. A shaft 16a of an eccentric cam member 16 is inserted into the bearing hole 15a. Further, the shaft 16a is connected to a shaft 17a of an operation member 17 for manual operation. The shaft 16a and the shaft 17a constitute a connecting shaft member and are fixed to each other. That is, the connecting shaft member has the operation member 17 and the eccentric cam member 16.
[0013] The operation member 17 is formed in a substantially disk shape and is rotatably provided around the second rotation axis CL2 together with the eccentric cam member 16. Further, the operation member 17 is provided with a bearing hole 17b having an axis concentric with the second rotation axis CL2. The bearing hole 17b is provided in an auxiliary rotation support member 18 erected from the base member 30, and a support shaft 18a extending to a part of the shaft 16a on the shaft 17a side is inserted therein. The operation member 17 and the eccentric cam member 16 are rotatably supported by the auxiliary rotation support member 18 and the second rotation shaft support member 15.
[0014] The eccentric cam member 16 has a circular outer shape when viewed from the axial direction of the second rotation axis CL2. In other words, the eccentric cam member 16 has an outer peripheral surface 16b whose outer periphery is circular in a cross section by a plane perpendicular to the second rotation axis CL2. The eccentric cam member 16 is formed in a substantially cylindrical shape. The shaft 16a of the eccentric cam member 16 has its axis concentric with the second rotation axis CL2 and is provided eccentrically with respect to the axis of the outer peripheral surface 16b of the eccentric cam member 16. In this way, the eccentric cam member 16 is rotatably supported eccentrically around the second rotation axis CL2.
[0015] As shown in FIG. 3, the first rotation axis CL1 and the second rotation axis CL2 are arranged to intersect when viewed from the vertical direction (the upper side in FIG. 1 is the upper side and the lower side is the lower side). The rocking body 11 is inclined so that the crescent-shaped tip is on the front side when viewed from the front side.
[0016] In the rocking toy 10, usually, the position of the first rotation axis CL1 and the rocking body 11 are set so that the cam follower 11b contacts the outer peripheral surface 16b of the eccentric cam member 16. Then, when the operation member 17 is rotated by hand, the eccentric cam member 16 rotates while being eccentric around the second rotation axis CL2. The cam follower 11b moves back and forth following the outer peripheral surface 16b of the eccentric cam member 16. Therefore, the rocking body 11 rocks around the first rotation axis CL1.
[0017] Here, the cam follower 11b is provided below the first rotation axis CL1 in the rocking body 11, so that the weight of the rocking body 11 acts on the eccentric cam member 16. Therefore, even if the hand is released from the operation member 17 at any rotational position of the operation member 17, the rocking body 11 stops at that position and does not move.
[0018] According to the embodiment of the present invention as described above, a rocking toy of the following aspect can be provided.
[0019] The rocking toy according to the first aspect includes a rocking body that is rotatably supported around a first rotation axis and has a cam follower below the first rotation axis, and an eccentric cam member that is provided so as to be able to contact the cam follower and is rotatably supported eccentrically around a second rotation axis disposed below the first rotation axis. The first rotation axis and the second rotation axis are arranged to intersect when viewed from the vertical direction.
[0020] According to this configuration, the cam follower can be configured to contact the eccentric cam member due to the own weight of the rocking body. Therefore, a rocking toy with a simple configuration without using gears can be provided. Furthermore, since only the cam follower and the eccentric cam member are in contact, even if a finger or the like is sandwiched between the cam follower and the eccentric cam member, only the own weight of the rocking body acts, so the finger or the like can easily escape. And since the first rotation axis and the second rotation axis are arranged to intersect when viewed from the vertical direction, the design of the toy can be improved without simply setting the rocking direction of the rocking body to a direction orthogonal to the second rotation axis.
[0021] The rocking toy according to the second aspect has a connection shaft member rotatably provided along the second rotation axis, and the connection shaft member includes the eccentric cam member and an operation member for manual operation.
[0022] According to this configuration, the rocking body can be rocked by manually operating the operation member, so it is easy to stop the rocking body at an arbitrary position of the user, and the play can be made even more enjoyable.
[0023] In the rocking toy according to the third aspect, the eccentric cam member has an outer peripheral surface with a circular outer periphery in cross section.
[0024] According to this configuration, an eccentric cam member having an outer peripheral shape such as a cylindrical shape with a circular outer periphery can be formed without forming a shape such as a cam shape, so it is easy to fit into the design image of a toy of a predetermined theme. Therefore, it is possible to provide a rocking toy with further enhanced design.
[0025] As described above, the embodiments of the present invention have been described. However, the present invention is not limited to the above embodiments, and various modifications are possible without departing from the gist thereof.
Explanation of reference numerals
[0026] 1 Parade vehicle toy 2 First parade vehicle toy 3 Second parade vehicle toy 4 Airplane toy 10 Rocking toy 11 Rocking body 11a Boss 11b Cam follower 12 First rotation shaft support member 12a Bearing hole 12a1 Inner peripheral surface 13 Rotating member 13a Hole 13b Outer peripheral surface 14 Decorative member 15 Second rotation shaft support member 15a Bearing hole 16 Eccentric cam member 16a Shaft 16b Outer peripheral surface 17 Operating member 17a Shaft 17b Bearing hole 18 Auxiliary rotation support member 18a Support shaft 30 Base member 31 Wheel
Claims
1. a swinging body that is rotatably supported around a first rotation shaft and includes a cam follower below the first rotation shaft; an eccentric cam member that is provided to be able to come into contact with the cam follower and is supported eccentrically and rotatably about a second rotation shaft that is disposed below the first rotation shaft; having A rocking toy, wherein the first rotation axis and the second rotation axis are arranged so as to intersect when viewed from an up-down direction.
2. a connecting shaft member rotatably provided along the second rotation shaft, The rocking toy according to claim 1 , wherein the connecting shaft member includes the eccentric cam member and an operating member for manual operation.
3. 3. The rocking toy according to claim 1, wherein the eccentric cam member has an outer circumferential surface having a circular cross-sectional outer periphery.
Citation Information
Patent Citations
Hanging rocking toy housed in a container body
JP3110565U