JP2004290706A - Mounting structure of motor for toy - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a motor easily attaching/detaching the motor and to provide a toy racing automobile. <P>SOLUTION: This mounting structure of the motor for mounting the motor in a motor storage part provided in a base body can take an opening position capable of turning around a prescribed turning axis provided in the base body and opening the motor storage part by the turning, and a closed position closing the motor storage part; and has a motor pushing plate pushing the trunk part of the motor installed in the motor storage part in the closed position. The motor pushing plate is characterized in having a lock part, when the motor storage part is in the closed state, capable of locking an engagement part provided in the base body by its elasticity or the elasticity of the engagement part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor mounting structure, and more particularly to a motor mounting structure that is particularly effective when applied to a motor that is frequently attached and detached.

Conventionally, a motor is a power source in various toys, for example, and the power of this motor is transmitted to an operating unit (wheels in a traveling toy, limbs in a robot toy or a doll toy) via a gear mechanism. Has become.
By the way, when attaching a motor, it should be noted that it is indispensable to adopt a structure in which the motor does not move for attachment. If the motor moves, for example, the engagement between the motor gear and the gear meshed with the motor gear will be incomplete, and the power transmission to the operation unit will not be successful.
Therefore, conventionally, when a motor is mounted, the motor holding plate is screwed or fixed while the motor is held by the motor holding plate. (For example, Patent Document 1)
Japanese Utility Model Publication No. Hei 6-113494

However, in the case of a motor mounted on a car toy for racing or the like, it may be desirable to replace the motor depending on the conditions of the course (for example, there are many curves). When replacing the motor, the screws have to be attached and detached, which is troublesome.
Further, in the case where the conductor is attached to the motor, it is necessary to attach and detach the conductor by soldering, which is very troublesome.

  SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide a motor mounting structure and a motor vehicle toy capable of easily mounting and removing a motor.

  The mounting structure for a toy motor according to claim 1, wherein the motor mounting structure mounts the motor in a motor storage portion provided on the base, wherein the motor is rotatable about a predetermined rotation axis provided on the base. A motor holding plate that can take an open position for opening the motor housing by rotation and a closed position for closing the motor housing, and press a body of the motor installed in the motor housing in the closed position; When the motor pressing plate is in the closed position, the motor pressing plate has a locking portion which can be locked by itself or by the elasticity of the engaging portion on the engaging portion provided on the base.

  Here, the “substrate” refers to a portion defining the motor housing portion and a portion in the vicinity thereof, regardless of whether it is configured by one member or a combination of two or more members. The extending direction of the “rotation axis” does not matter whether it is a direction parallel to the axis of the motor installed in the motor housing or a direction intersecting (for example, a direction orthogonal to). Further, the “engagement portion” may be a protrusion, an edge of a hole, or the like. In short, it is sufficient that the locking piece can be locked by itself or by the elasticity of the engaging portion. The material of the “motor holding plate” may be a metal or a synthetic resin. The toy to which the “motor mounting structure for toys” is applied is applicable to any type of toys such as automobile toys, robot toys, doll toys, etc. Especially effective. Note that “opening the motor housing” does not mean complete opening of the motor housing, but includes opening to the extent that the motor can be attached and detached. Further, "closing the motor storage section" does not need to cover the entire motor storage section, and also includes closing the motor storage section to the extent that the motor is not attached or detached.

  The motor mounting structure according to claim 2 is the motor mounting structure according to claim 1, wherein, according to the toy motor mounting structure, the rotation axis is the shaft of the motor installed in the motor housing. And the engaging portion is provided at a position opposite to the rotation axis with the motor housing portion interposed therebetween.

  According to a third aspect of the present invention, there is provided a motor mounting structure for a toy motor according to the first or second aspect, wherein the motor pressing plate also serves as a heat radiating plate. In order to use it as a heat radiating plate, the “motor holding plate” needs to be made of a material having a high heat radiating effect. For this purpose, the “motor holding plate” is preferably made of a metal, for example, copper or aluminum. However, if a shape having a high heat radiation effect is selected, a synthetic resin or the like (for example, an ABS resin) may be used.

  According to the motor mounting structure of the first aspect, the motor can be installed in the motor storage portion by rotating the motor holding plate to the open position, and thereafter, the motor holding plate is turned to the closed position and locked. The motor can be fixed by elastically locking the piece to the engaging portion of the base. On the other hand, the motor can be removed by applying a force to the locking piece elastically locked to the engaging portion of the base to release the locking, and rotating the motor holding plate to the open position. .

  According to the motor mounting structure of the second aspect, the rotation axis of the motor pressing plate extends parallel to the axis of the motor, so that the entire body is pressed down almost uniformly by the motor pressing plate. . In addition, since the engaging portion is provided at a position opposite to the rotation axis with the motor housing portion interposed therebetween, the motor can be reliably held down by the motor holding plate.

  According to the motor mounting structure of the third aspect, since the motor holding plate also serves as a heat radiating plate, it is not necessary to provide a special heat radiating plate or a heat radiating structure.

  FIG. 1 is a perspective view of a racing car (racing car) toy to which the motor mounting structure according to the embodiment is applied. The outer shell of the automobile toy 1 includes a chassis (base) 2 and a body 3 shown in FIG. The chassis 2 and the body 3 are made of plastic, and the sides of the body 3 have a certain degree of elasticity. Although not particularly limited, recesses (engaging portions) are provided inside the sides, respectively. The body 3 is attached to the chassis 2 by elastically engaging the projections 2 a on both sides of the chassis 2. Preferably, an opening 3a is provided at the rear of the body 3 in order to improve the heat radiation effect of the motor 11, which will be described later.

  FIG. 2 shows a plan view of the chassis 2. Although not particularly limited, a rechargeable battery (NiCd battery) 4 is installed in a central portion of the chassis 2 in a vertically installed state. The battery 4 is attached to a battery housing (not indicated) by an attachment member 5. The mounting member 5 is made of plastic, and is formed in an inverted U-shape so that the body of the battery 4 can be pressed. The free ends of the mounting member 5 have at least elasticity, and the free ends can be deformed in directions approaching and moving away from each other. A locking claw (engaging portion) 5a is provided outside each of the free ends, and the locking claw 5a is hooked on an edge (engaging portion) of a hole (not shown) of the chassis 2 so that the battery 4 Can be fixed. Note that conductor pieces 6a and 6b that can be electrically connected to the negative and positive poles of the battery 4 are provided before and after the battery housing. Although not shown, the conductor pieces 6a and 6b are partially exposed below the chassis 2, and the battery 4 can be charged using the exposed conductor pieces 6a and 6b.

  A motor housing 7 is provided at the rear of the chassis 2 as shown in FIG. As shown in FIG. 4, a motor 11 is installed in the motor housing 7 in a horizontal state.

  The motor 11 installed in the motor housing 7 is a DC motor, and includes a large assembled case 12, a completed rotor 13, and a small assembled case 14, as shown in FIG. Hereinafter, the large assembled case 12, the completed rotor 13, and the small assembled case 14 will be described in order.

As shown in FIG. 6, the large assembly case 12 includes a large case (body portion) 20 having an opening 20a at the buttocks. The large case 20 is made of a conductive material.
The large assembly case 12 has a structure in which a stator 21 is provided inside the large case 20. The stator 21 creates a constant magnetic field inside the motor 11, and generally uses a permanent magnet or an electromagnet. In this embodiment, a permanent magnet is used.

  In the completed rotor 13, as shown in FIG. 7, a drive winding 32 is wound around a core 31 attached to a rotating shaft 30, and a sleeve 33 and a thrust ring 34 are attached to one end of the rotating shaft 30 sandwiching the core 31. A commutator 35 and an oil cutter 36 are attached to the other end. The commutator 35 has a structure in which a commutator piece 35b is attached to a core 35a.

The small assembly case 14 is configured to include a small case 40 (FIG. 8) that fits into the large case 20 and closes the opening 20a of the large case 20. The small case 40 is made of an insulator.
As shown in FIG. 8, the assembled small case 14 has a structure in which conductor pieces 41, 42, 43 and contact springs 44, 45 are attached to the small case 40. Among them, the conductor piece 41 constitutes a negative terminal, is electrically connected to the negative electrode side of the battery 4, and is configured to be electrically connectable to the commutator 35 via the contact spring 44. The tip of the conductor piece 41 is curved when assembled to the small case 40 as shown in FIG. On the other hand, the conductor piece 42 is connected to the large case 20 via the conductor piece 43, and the large case 20 is configured to be electrically connected to the positive electrode side of the battery 4. The conductor piece 42 is configured to be electrically connectable to the commutator 35 via the contact spring 45.

  Next, the motor housing 7 will be described. Although not particularly limited, one end of a conductor piece 6a electrically connected to the negative electrode of the battery 4 extends on the right side wall of the motor housing 7 as shown in FIG. are doing. On the other hand, one end of a conductor piece 6b electrically connected to the positive electrode of the battery 4 extends on the floor of the motor housing 7. Then, as shown in FIG. 4, when the motor 11 is installed in the motor housing 7, the negative terminal at the rear end of the motor 11 is automatically electrically connected to the conductor piece 6a, and the positive terminal at the body is automatically electrically connected to the conductor piece 6b. It is supposed to be.

  Gears 50 and 51 are provided near the left side wall of the motor housing 7. The gears 50 and 51 are integrally formed of plastic, and are configured to idle around a horizontal axis (rotating axis) 52. Here, the gear 51 meshes with a gear 53 fixedly provided on the axle 2b of the rear wheels 2a, 2a. The rear wheels 2a, 2a are driven by the rotation of the gear 53 by motor power. On the other hand, when the motor 11 is installed in the motor housing 7, the gear 50 meshes with a gear 54 attached to a shaft of the motor 11.

  Further, a motor holding plate 8 is provided at a rear portion of the chassis 2. The motor pressing plate 8 is made of copper, although not particularly limited, and is provided with slits and holes as appropriate to satisfy both the improvement of the heat radiation of the motor 11 and the pressing effect. The motor pressing plate 8 is configured to be rotatable around a horizontal axis 52 extending in the horizontal direction on the front side of the motor housing 7. The motor holding plate 8 rotates between the horizontal axis 52 and an open position (A in FIG. 9) for opening the motor housing 7 and a closed position (B in FIG. 9) for closing the motor housing 7. It is configured to be able to take. When the motor holding plate 8 is in the closed position, the motor holding plate 8 can hold the body of the motor 11 installed in the motor housing 7.

  The center portion of the motor holding plate 8 on the free end side is curved, and the curved portion constitutes a locking portion 8a. The locking portion 8a has elasticity, and when the motor holding plate 8 rotates about the horizontal axis 52, it shifts from the open position (A in FIG. 9) to the closed position (B in FIG. 9). Is inserted into a hole 62 provided on the rear side of the motor housing 7 of the chassis 2, and is locked by the edge (engaging portion) of the hole 62 by its own elasticity.

  A method of replacing the motor 11 by the motor mounting structure configured as described above will be described.

  First, the body 3 is removed from the chassis 2 and the motor holding plate 8 is moved to the open position (A in FIG. 9) by rotating the motor holding plate 8 about the horizontal axis 52. In this state, the motor 11 is taken out of the motor housing 7. By this removal, the electrical connection between the motor 11 and the conductor pieces 6a and 6b is released. Further, the mesh between the gear 54 attached to the shaft of the motor 11 and the gear 50 is released.

  Next, another motor 11 is fitted into the motor housing 7. By this fitting, the negative terminal at the tail of the motor 11 is electrically connected to the conductor piece 6a, and the positive terminal at the body of the motor 11 is electrically connected to the conductor piece 6b. The gear 54 attached to the shaft of the motor 11 meshes with the gear 50. Next, the motor holding plate 8 is moved to the closed position (B in FIG. 9) by rotating about the horizontal axis 52. Then, the locking piece 8a is locked to the edge (engaging portion) of the hole 62. Thereby, the motor 11 is fixed to the chassis 2. After that, the body 3 is attached to the chassis 2.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

  For example, in the above embodiment, the large case 20 is a positive terminal, but the large case 20 may be a negative terminal. Alternatively, regions that are insulated and separated from each other may be formed in the large case 20, and the regions that are insulated and separated from each other may be used as a positive terminal and a negative terminal. Further, an inner case may be provided in the large case 20, a part of the inner case may be exposed to the outside, and the exposed portion may be used as a terminal. Further, the outer periphery of the small case 40 side instead of the large case 20 side may be used as the terminal.

1 is a perspective view of a racing toy according to an embodiment. It is a top view of the chassis of the racing toy of FIG. FIG. 2 is a perspective view of a motor storage unit of the racing car of FIG. 1. It is a perspective view of the motor storage part of the racing toy of FIG. FIG. 2 is a cross-sectional view of a motor used in the racing toy of FIG. 1. FIG. 6 is an exploded perspective view of an assembled large case of the motor of FIG. 5. FIG. 6 is an exploded perspective view of a completed rotor of the motor of FIG. 5. FIG. 6 is an exploded perspective view of a small assembly case of the motor of FIG. 5. FIG. 2 is a side view showing an open / closed state of a motor pressing plate of the racing toy in FIG. 1.

Explanation of reference numerals

DESCRIPTION OF REFERENCE NUMERALS 1 toy for racing 2 chassis 3 body 4 battery 7 motor housing 8 motor holding plate 9 locking piece (locking part)
11 Motor

Claims (3)

In a motor mounting structure for mounting a motor in a motor storage portion provided on a base, an open position where the motor storage portion is rotatable around a predetermined rotation axis line provided on the base and the rotation opens the motor storage portion. A closed position for closing the motor housing, and a motor holding plate for holding the body of the motor installed in the motor housing in the closed position, wherein the motor holding plate is in the closed position. A mounting portion for the toy motor, further comprising a locking portion which can be locked by the engagement portion provided on the base body or by the elasticity of the engagement portion. The rotation axis extends in parallel with the axis of the motor installed in the motor storage section, and the engagement section is provided at a position opposite to the rotation axis across the motor storage section. The mounting structure for a toy motor according to claim 1, wherein the mounting structure is provided. 3. The mounting structure for a toy motor according to claim 1, wherein the motor pressing plate also serves as a heat radiating plate.

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