JP3035079U - Jet engine fan rotation transmission for toy airplanes - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a jet engine fan rotation transmission device for a toy airplane or the like. [Structure] A transmission shaft that rotates in relation to the prime mover is arranged on the main wing of an airplane toy, and a worm gear is attached to the transmission shaft corresponding to the engine part such as the main wing, and a rotatable fan shaft is arranged on the engine part. A jet engine fan rotation transmission device for a toy airplane or the like, characterized in that the worm gear and a bevel gear mounted on a fan shaft are meshed with an intermediate transmission gear having upper and lower teeth to transmit rotation.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a rotary transmission device for a jet engine fan such as an airplane toy.

[0002]

[Prior art]

 The method proposed by the applicant to rotate the propeller shaft with a worm gear and a pinion has been proposed, and in the case where there is only one engine on one side of the main wing, the gap between the lower body and the engine part should be minimized. The structure does not need to cover the rotating shaft with a cover. However, if there are two or more engines, a transmission shaft that connects the engine and the engine is required, and this transmission shaft is exposed outside the fuselage.

[0003]

[Problems to be solved by the device]

 If the transmission shaft that connects the conventional engine and the engine is exposed to the outside of the machine body, there is a risk that a finger may touch the transmission shaft. Further, in the conventional transmission method in which the blade body and the transmission shaft are parallel to each other with a space therebetween, when one of the blade bodies is curved, the corresponding transmission shaft is curved, and the worm gear on the transmission shaft is curved. However, there is a drawback that the pinion meshed with the pinion has a rotational resistance and cannot be smoothly transmitted.

The present invention has been made for the purpose of eliminating the above-mentioned drawbacks.

[0005]

[Means for Solving the Problems]

 A transmission shaft that rotates in relation to the prime mover is arranged on the main wing of an airplane toy, and a worm gear is attached to the transmission shaft corresponding to the engine part of the main wing, and a rotatable fan shaft is arranged on the engine part. A jet engine fan rotation transmission device for a toy airplane or the like, characterized in that an intermediate transmission gear having upper and lower teeth is meshed with a bevel gear attached to a fan shaft to transmit rotation.

A transmission shaft that rotates in relation to the prime mover is rotatably supported from the fuselage to the left and right by bearings, and a worm gear is attached to the transmission shaft in correspondence with the jet engine mounted on the lower surface of the main wing. Recessed mounting seats are provided on the lower surface of the engine, the engine part is provided from the mounting part and the engine main body part, the upper end of the mounting part is fitted to the recessed mounting seat, and the main wing is fixed with screws, and the whole structure is installed. A fan engine for a toy airplane or the like characterized in that a fan shaft having a fan and a driven gear is supported in the engine body, and an intermediate transmission gear is meshed with the worm gear and the driven gear to transmit rotation. It may be a transmission device.

The prime mover integrally supports a flywheel with a pinion, integrally supports an intermediate large-diameter gear that meshes with the pinion, and the pinion, and meshes the pinion with a gear on an axle. Wheels are attached to both ends of the wheel, the wheel is rotated to rotate the axle, the rotation is accelerated through an intermediate large diameter gear, and the flywheel is transmitted to rotate at high speed. On the contrary, it is also possible to transmit the wheels and rotate the wheels to drive the airplane toy.

[0008] The rotation is branched by a gear that meshes with the intermediate large-diameter gear of the prime mover, the pinion that meshes with the gear is accelerated, and the large-diameter gear that meshes with the pinion is decelerated and rotated. The pinion on the supporting shaft for mounting may be meshed with the pinion attached to the inner end of the transmission shaft to transmit the rotation to the transmission shaft.

An outer end of the transmission shaft of the prime mover is bent to form a bent portion, a transmission end of the driven shaft is bent to form a bent portion to be transmitted, and both are contacted to transmit rotation. You may choose to do this.

An elastic connecting member may be connected to the outer end of the transmission shaft, and a driven shaft may be connected to the opposite end of the elastic connecting member to transmit rotation.

[0011]

[Embodiment of the invention]

 A transmission shaft that rotates in relation to the prime mover is rotatably supported from the fuselage to the left and right by bearings, and a worm gear is attached to the transmission shaft in correspondence with the jet engine that is mounted on the lower surface of the main wing. Recessed mounting seats are provided respectively, the engine part is provided from the mounting part and the engine main body part, the upper end of the mounting part is fitted into the recessed mounting seat, and the main wing is fixed with screws, and the whole body is erected. A jet engine fan rotation transmission device for a toy airplane or the like, characterized in that a fan shaft having a fan and a driven gear is supported in the portion, and an intermediate transmission gear is meshed with the worm gear and the driven gear to transmit the rotation.

[0012]

【Example】

 A four-jet jet engine type airplane toy 1 which is an embodiment shown in the drawings of a jet engine fan rotation transmission device for an airplane toy or the like of the present invention will be described below. The main wing 2 has a prime mover 3 as shown in FIG. Jet shafts 7a, 7b mounted on the lower surface of the main wing 2 are rotatably supported from the body 5 by bearings 6, 6 ... Worm gears 8a, 8b, 8c and 8d are attached corresponding to 7c and 7d.

In the embodiment in which the jet engines 7a, 7b, 7c, 7d are mounted on the lower surface of the main wing 2, as shown in FIG. 3, concave mounting seats 9 are provided on the lower surface of the main wing 2, respectively, and the jet engine 7a, Install 7b, 7c and 7d. As for the details of the structure, as shown in FIG. 4, the jet engine 7a is provided with, for example, an engine section 10 composed of a mounting section 10a and an engine main body section 10b, and the upper end of the mounting section 10a is shown in FIG. As described above, the whole is installed by fitting it into the recessed mounting seat 9 and fixing the main wing 2 with the screw 11.

The mounting portion 10a and the engine main body portion 10b of the engine portion 10 are provided with vertically communicating bearing holes 12 in which a rod-shaped gear 13 which is an intermediate transmission gear is fitted and inserted, and an upper end of the rod-shaped gear 13 is attached to the transmission shaft. 4a meshes with the worm gear 8a, the lower end of the rod-shaped gear 13 is laterally supported inside the engine body 10b, and the entire weight is supported by being connected to the fan shaft 15 having the fan 14 attached to the tip thereof. , The fan shaft 15 meshes with a bevel gear 16 attached to the rear end of the fan shaft 15.

The fan 14 is housed in the transparent cover 10b1 and is arranged so as to be visible from the outside.

The prime mover 3 pivotally supports the flywheel 17 integrally with the pinion 18, integrally pivotally supports an intermediate large-diameter gear 19 meshing with the pinion 18 and the pinion 20, and supports the pinion 20 and the axle 21. Gears 22 mesh with each other, and wheels 23 are attached to both ends of the axle 21.

The wheel 23 is rotated to rotate the axle 21, the rotation is accelerated through the intermediate large diameter gear 19, and the free wheel 17 is transmitted to rotate at high speed. This accumulated inertia rotation is transmitted in reverse, and the wheels 23 are rotated to run the airplane toy 1.

The rotation is branched by the gear 24 meshing with the intermediate large-diameter gear 19, the pinion 25 meshing with the gear 24 is rotated at an increased speed, and the large-diameter gear 26 meshing with the pinion 25 is rotated at a reduced speed. The pinions 28a, 28b on the support shaft 27 to which the large-diameter gear 26 is attached are meshed with the pinions 29a, 29b attached to the inner ends of the transmission shafts 4a, 4b, and the rotation is transmitted to the transmission shafts 4a, 4b.

In order to transmit the rotation from the prime mover 3 to the transmission shafts 4a and 4b, not only the meshing between the pinions 28a and 28b and the pinions 29a and 29b, but also the transmission shaft 30 as shown in FIG. By rotating the bent portion 30a formed by bending the outer end of the shaft and the driven bent portion 31a formed by bending the transmission end of the driven shaft 31 in contact with each other, The driven shaft 31 may be connected by an elastic connector 32 such as silicon rubber. The prime mover 3 is also not shown, but may be a motor, a mainspring, or the like.

[0020]

[Effect of the invention]

 Since the jet engine fan rotation transmission device for a toy airplane or the like of the present invention is configured as described above, the fan rotation of an airplane or the like can be reduced and the traveling can be smoothly performed without attenuating the motive power rotation as much as possible. Is.

Further, according to the jet engine fan rotation transmission device for a toy airplane of the present invention, even if one side of the main wing is curved, the worm gear and the rod gear of the transmission shaft can be used even if the number of fans is one, two, or three. It is possible to transmit rotation smoothly without disengagement with.

Further, since the transmission shaft is housed in the main wing and does not go out under the main wing, it is possible to play with peace of mind without pinching a finger of a child or the like.

[Brief description of the drawings]

FIG. 1 is a perspective view of an airplane toy equipped with a jet engine fan rotation transmission device of the present invention.

FIG. 2 is a plan view showing the internal transmission mechanism of the airplane toy by removing the upper half of the outer shell.

FIG. 3 is a perspective view showing the main wing as viewed from below and showing the recessed mounting seat and the transmission worm gear of the engine section of the main wing.

FIG. 4 is an external perspective view of the engine unit alone.

FIG. 5 is a longitudinal sectional view of a main wing and an engine section taken along line AA of FIG. 2;

FIG. 6 is a side view showing a transmission gear mechanism from the driving mechanism to the transmission shaft of the jet engine fan and the traveling wheels.

FIG. 7 is a partial side view showing a second embodiment of a transmission mechanism that transmits from a prime mover to a transmission shaft having a worm gear.

FIG. 8 is a partial side view showing another embodiment of a transmission mechanism that transmits to a transmission shaft having a worm gear.

[Explanation of symbols]

 1 Four-engine jet engine type airplane toy 2 Main wing 3 Motor 4a Transmission shaft 4b Transmission shaft 5 Body 6 Bearing 7a Jet engine 7b Jet engine 7c Jet engine 7d Jet engine 8a Worm gear 8b Worm gear 8c Worm gear 8a Worm seat 9 Engine recessed seat 9 Worm gear 9 Mounting part 10b Engine body part 10b1 Transparent cover 11 Screw 12 Bearing hole 13 Rod gear 14 Fan 15 Fan shaft 16 Bevel gear 17 Flywheel 18 Pinion 19 Intermediate large diameter gear 20 Pinion 21 Axle 22 Gear 23 Wheel 24 Gear 25 Pinion 26 Large diameter Gear 27 Spindle 28a Pinion 28b Pinion 29a Pinion 29b Pinion 30 Transmission shaft 30a Bent part 31 Driven shaft 31a Driven bent part 3 Silicone rubber or the like elastic connector

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[Procedure amendment]

[Submission date] September 27, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 5

[Correction method] Change

[Correction contents]

[Figure 5]

Claims (6)

[Utility model registration claims] 1. A transmission shaft that rotates in relation to a prime mover is arranged on the main wing of an airplane toy, and a worm gear is attached to the transmission shaft corresponding to the engine part of the main wing and the like, and a rotatable fan shaft is attached to the engine part. A jet engine fan rotation transmission device for a toy airplane or the like, characterized in that the worm gear and the bevel gear attached to the fan shaft are meshed with an intermediate transmission gear having upper and lower teeth to transmit rotation. 2. A transmission shaft that rotates in association with a prime mover is rotatably supported from a fuselage to the left and right by a bearing, and a worm gear is attached to the transmission shaft so as to correspond to a jet engine attached to the lower surface of the main wing. Each of the lower surface is provided with a recessed mounting seat, the engine part is provided from the mounting part and the engine body part, the upper end of the mounting part is fitted to the recessed mounting seat, and the main wing is fixed with screws, and the whole is installed, A jet engine fan rotation transmission for a toy airplane or the like, characterized in that a fan shaft having a fan and a driven gear is supported in the engine body, and an intermediate transmission gear is meshed with the worm gear and the driven gear to transmit rotation. apparatus. 3. The engine according to claim 1 or 2, wherein the flywheel integrally supports the flywheel with the pinion, and the intermediate large-diameter gear meshing with the pinion and the pinion integrally support the pinion. Mesh with the gear on the axle,
Wheels are attached to both ends of the axle, the wheel is rotated to rotate the axle, the rotation is accelerated through an intermediate large diameter gear, and the flywheel is transmitted to rotate at high speed. Conversely, a jet engine fan rotation transmission device for a toy airplane or the like, which is characterized by transmitting and rotating wheels to drive an airplane toy. 4. The method according to claim 1, claim 2 or claim 3, wherein rotation is branched by a gear meshing with the intermediate large diameter gear of the prime mover, a pinion meshing therewith is accelerated and rotated, and Decelerates to a large diameter gear that meshes,
A rotation transmission device for a jet engine fan of a toy airplane or the like, characterized in that a pinion on a support shaft for mounting the large diameter gear is meshed with a pinion attached to an inner end of the transmission shaft to transmit rotation to the transmission shaft. . 5. The method according to claim 1, 2 or 3, wherein the transmission shaft of the prime mover is bent at its outer end to form a bent portion, and the transmission end of the driven shaft is bent. Providing a transmission bending part,
A jet engine fan rotation transmission device for a toy airplane or the like, characterized in that the two are brought into contact with each other to transmit rotation. 6. The rotation according to claim 1, claim 2 or claim 3, wherein an elastic connecting body is connected to an outer end of the transmission shaft and a driven shaft is connected to an opposite end of the elastic connecting body. A jet engine fan rotation transmission device for toy airplanes, etc.