JPH0342959Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a power mechanism for a spring-driven toy vehicle.

(Prior art) The power mechanism that stores power in a spring by reversing the wheels, etc., and runs the toy vehicle is assembled with resin molded products, but assembling the spring is troublesome, especially because it is small, so this has not been done in the past. The method of manually winding the wire in advance and assembling it as described above is extremely inefficient, and there is a problem that it is not suitable for practical use.

(Technical Problem) Therefore, the problem of the present invention is to make it possible to easily incorporate the mainspring, and to improve manufacturing efficiency and ease of handling.

(Technical means) In order to solve the above problem, the present invention traverses the circular recess 2 in which the mainspring spring 1 is loaded in the radial direction,
A substantially L-shaped hole 9 for attaching a mainspring spring, which reaches from the outside of the frame 3 to the stop shaft insertion hole 10a in the center, is inserted into the frame 3.
The stop shaft 4 is provided at its center, and has a central shaft 4a for engaging the arc-shaped tip 1a of the mainspring spring 1, and a center shaft 4a formed in the axial direction for inserting the tip 1a. A mainspring locking cylinder 12 having an insertion groove 11 is provided concentrically with the mainspring locking cylinder 12 having an insertion groove 11 .
A measure is taken to provide a row of recesses 13 into which the parts b are fitted.

(Function) In the above configuration, when the drive system of the gear mechanism 8 is mainly installed on one side (left) of the inner frame 3c of the frame 3, and the power storage system is installed on the other side (right), the drive gear 5 is installed. The provided members are the center shaft 4a and thin shaft 4b of the stop shaft 4, and the output gear 7 is the cylindrical portion 16, which are each attached to the frame 3, so the mainspring spring 1 is set in the circular recess 2,
It is sufficient to simply drive the axle 6 into the cylindrical member 15. To set the mainspring spring 1, first insert the tip end 1a into the locking cylinder 12 of the stop shaft through the insertion hole 10a of the frame 3, insert the other part through the approximately L-shaped mounting hole 9, and then Insert the assembled stop shaft 4 into the recess 2 while rotating it (FIG. 4) so that the rear end engaging portion 1b completely enters into the recess 2 (FIG. 5). When further inserted, the rear end engaging portion 1b will be inserted into one of the recesses 13.
It engages and stops.

(Example) To explain in detail with examples below, 1 is a spiral spring whose rear end is bent to form an engaging portion 1b, and 2 is a circular shape formed within the frame 3 of the driving mechanism to accommodate the spiral spring 1. The stop shaft 4 is rotatably mounted at the center of the recess. The spring tip portion 1a may be formed in advance into an annular shape, a semi-annular shape, etc. (see FIG. 8). The frame 3 of the embodiment is divided into two left and right parts 3a and 3b as shown in FIG.
and are integrally combined by a coupling means consisting of a fitting hole 3e and a claw 3f. 10a and 10b indicate that the insertion hole 3g of the stop shaft 4 is a protrusion through hole provided in the middle frame 3c.

Thus, the drive gear 5 is formed integrally with the stop shaft 4,
A central shaft 4a and a thin shaft 4b are provided at the center of both sides, and the central shaft 4a is formed into a cylindrical shape, and a mainspring spring locking cylinder 12 is integrally provided, and the tip of the mainspring spring 1 is provided in the axial direction of the side surface. There is an insertion groove 11 for engaging the register 1a with the stop shaft 4, and an insertion groove 11 in the outer wall of the frame 3 for mounting the spring spring 1 extending from the insertion hole 10 toward the lower end of the frame 3 and toward the other side of the frame 3. Each of the substantially L-shaped holes 9 is provided with a through hole 2a in the circular recess 2 and communicates with the outside. A sixth gear 8f, which will be described later, is integrally formed on the other side of the stop shaft 4 on which the driving gear 5 is integrally provided, and this gear protrudes from the through hole 3e of the middle frame 3c.

Further, the aforementioned locking tube 12 is also integrally molded.
Note that the drive device 5, the sixth gear 8f, and the mainspring spring locking cylinder 12 may not be integrated with the stop shaft 4, but may be combined.

Further, 6 is an axle that is inserted through the shaft holes 6a and 6b of the frame 3, and 7 is an output gear that is integrally provided with the axle 6.
Reference numeral 8 denotes a gear mechanism that connects the gear 7 and the drive gear 5, including a first gear 8a that meshes with the drive gear 5, a second gear 8b that is coaxial with it, a third gear 3c that meshes with the second gear 8b, and a gear mechanism that is coaxial with it. A drive system consisting of a fourth gear 8d and a fifth gear 8e that meshes with the fourth gear 8d.
It consists of a power storage system connected to a sixth gear 8f coaxial with the driving gear 5 through a first gear 8a, a second gear 8a,
The set 8b and the fifth gear 8e are fitted with diagonal holes 8 so that they mesh only when the mainspring is released and when accumulating power, and idle at other times.
It is pivotally supported by g and 8h. 14 is a hole provided in the output gear 7 for pushing the axle 6 through, 15 is a cylindrical member with the output gear 7 provided on one side, and 16 is the member 15.
A cylindrical portion 17 is provided inside the frame bodies 3, 3a to rotatably hold the toy wheel.

(Effect) Therefore, according to the present invention, after the gear mechanism 8 for transmitting the stored force of the mainspring spring 1 is assembled into the frame 3, the axle 6 is attached, and the mainspring spring retaining shaft 4 is almost completed, the frame is assembled. Insert the mainspring spring 1 from the outside of the body 3 into the circular recess 2 through the approximately L-shaped mounting hole 9,
It is extremely easy to manufacture because it can be assembled by simply engaging the tip portion 1a with the locking tube 12 integrated with the drive gear 5. Moreover, since the state in which the spiral spring 1 is assembled can be confirmed, there is no possibility of setting it incorrectly. Since the mainspring spring 1 can be installed after the frame 3 is assembled without the problem of the spring 1 becoming stuck or not moving later, springs 1 with different strengths and weaknesses, lengths and shorts, etc. can be selectively installed according to the needs after the frame is assembled. , since the axle 6 is also the same, only the frame 3 made of molded product is manufactured and stored, and a predetermined spiral spring 1 is manufactured according to the order.
It has remarkable effects such as being able to be shipped with the axle 6 attached.

[Brief explanation of the drawing]

The drawings show an embodiment of the driving mechanism for a toy traveling vehicle according to the present invention, in which Fig. 1 is a sectional view of the main part, Fig. 2 is an exploded perspective view, Fig. 3 is a side view, and Figs. 4 and 5. The figure is a side view showing the winding process of the mainspring spring.
FIG. 6 is a bottom view, FIG. 7 is a partially enlarged view of the center of the drive gear, and FIG. 8 is a side view showing two examples of the tip of the mainspring spring. 1... Spring spring, 2... Circular recess, 3... Frame,
4...Stop shaft, 5...Drive gear, 6...Main shaft, 7...Gear,
8... Gear mechanism, 9... Approximately L-shaped hole for attaching a mainspring spring, 11... Insertion groove, 12... Locking cylinder, 13... Recessed notch.

Claims (1)

[Scope of utility model registration request] The tip end 1a of the mainspring spring 1 is placed in the frame 3 in which the circular recess 2 into which the mainspring spring 1 is loaded is formed.
a drive gear 5 integrated with the stop shaft 4 engaged with the gear 7; and a gear 7 attached to the axle 6 inserted through the frame 3.
It is a driving mechanism equipped with a gear mechanism 8 that connects the mainspring spring, and extends across the circular recess 2 in the radial direction and reaches the stop shaft insertion hole 10a in the center from the outside of the frame 3. A letter-shaped hole 9 is formed in the frame 3, and the stop shaft 4 is provided at the center thereof,
A central shaft 4a for engaging the arc-shaped tip 1a of the mainspring spring 1 and a mainspring locking tube 12 having an insertion groove 11 formed in the axial direction for inserting the tip 1a are provided concentrically. A driving mechanism for a toy traveling vehicle, characterized in that a circular recess 2 is provided with a row of recesses 13 on its inner circumferential surface into which a rear end engaging portion 1b of a mainspring spring 1 is fitted.