KR101605679B1

KR101605679B1 - Tricycle

Info

Publication number: KR101605679B1
Application number: KR1020140048804A
Authority: KR
Inventors: 이으뜸
Original assignee: 삼천리자전거 주식회사
Priority date: 2014-04-23
Filing date: 2014-04-23
Publication date: 2016-03-23
Also published as: CN106470895B; WO2015163557A1; CN106470895A; KR20150122481A

Abstract

The present invention relates to a tricycle. More particularly, the present invention relates to a tricycle, and more particularly, to a tricycle which is mounted on a rear portion of a frame, and which is divided into a bifurcated rear wheel support portion and a rear wheel. The rotation center axis 62 which is the center of rotation of the rear wheel 29 is installed to penetrate the rear wheel support portions 13 on both sides and the rotation center axis 62 is provided on the shaft pipe 60 The hook key 76 prevents it. The hook key 76 is supported by the elastic member 79 and the rear wheel 29 is supported by the rear wheel support portion 13 by moving the hook key 76 by the rotation center shaft 62 while overcoming the elastic force. The rear wheel 29 is detached in a one-touch manner by separating the hook key 76 from the rotation center shaft 62 while overcoming the elastic force of the elastic member 79 . The basket hanger 69 at the opposite ends of the rotation center shaft 62 on both sides is press-fitted into the press-in hole 38 formed at both ends of the basket 30 and the tip of the basket 30 is inserted into the frame 10 The basket 30 is installed in the space between the rear wheel supporting portions 13 by being hooked to the basket supporting portion 46 with the basket supporting portion 13 therebetween. According to the present invention, the rear wheels (29) and the basket (30) can be easily mounted and separated.

Description

Tricycle {Tricycle}

The present invention relates to a tricycle, and more particularly, to a tricycle which can be easily separated from a rear wheel and a basket.

Bicycles are usually driven by the passengers, but in the case of bicycles for infants, the car may be pushed by the car. Infant bicycles have the necessary parts according to the growth period because the infant grows fast, and there may be parts that are not used after a certain period of time. Therefore, it is necessary to make them easily removable by the user.

For example, in the case of a baby bicycle, a basket is needed to store articles for infants when the protector is driving while pushing. However, once the child has grown to a certain extent, the caregiver can ride alone without pushing the baby bicycle. In such cases, it is advisable to remove the basket from the baby bicycle. Of course, the attachment and detachment of such a basket can occur at any time according to the user's choice.

In addition, for the convenience of assembling, storing and transporting the bicycle, it is preferable to assemble and detach a part of the bicycle without a separate tool. However, a conventional bicycle requires a separate tool to assemble and disassemble a part of the bicycle. For example, in order to mount a basket on a frame, a basket is mounted by using a fastener and a separate part is attached to the frame. In the case of a rear wheel, a separate tool is used to separate the basket from the frame. Therefore, there is a problem that the number of parts is increased as a whole and handling is inconvenient.

Registration Utility Model 20-0448196

SUMMARY OF THE INVENTION An object of the present invention is to provide a rear wheel and a basket of a tricycle equipped with a simple structure.

Another object of the present invention is to securely mount a basket mounted on a space between rear wheels of a tricycle, which is the rear end of the frame.

It is another object of the present invention to prevent the cover of the basket installed in the space between the rear wheels, which is the frame rear end of the bicycle, from being lost.

According to an aspect of the present invention for achieving the above object, the present invention provides a motorcycle comprising: a frame; a rear wheel support portion provided at a rear end of the frame and provided with a shaft pipe; And a hanger key installed on the rear wheel supporting part to receive the elastic force of the elastic member and to hang on one side of the rotation center shaft to prevent the rotation center shaft from being removed from the shaft pipe, A basket hanger is formed at one end of the rotation center shaft, and a basket hanger is formed at an opposite end of the rotation center axis on which the hanger rib is formed. The basket hanger has a tip end portion The guide slope is formed so that the cross sectional area becomes smaller.

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A key groove is formed on the rotation center shaft to prevent the rotation center shaft from being pulled out of the shaft pipe by hooking the hook key.

The rear wheel support portion provided with the shaft pipe is provided with an end cover surrounding the shaft pipe. The end cover is provided with the hook key supported by an elastic member, and the release lever, on which the hook key is installed, And is exposed to the outside of the end cover.

Wherein the rear wheel support portion is divided into two bifurcated portions and the shaft pipe is provided at each end thereof to provide the rotation center shaft and a basket having a press-in hole formed therein for press-fitting an end portion of the rotation center shaft is disposed between the rear wheel support portions, Both ends of which are supported on the rotation center shaft of the frame and the tip end is hooked on the basket hanger portion of the joint cover provided on the connection portion of the frame and the rear wheel support portion.

A storage space is formed in the basket so as to be opened upward. The storage space is shielded by a separate cover. A cover ring is formed on the cover, and a hook provided on a protector steering handle provided on a joint cover of the frame And a hook slit formed on the protective cap of the auxiliary hook bar provided on the joint cover of the frame.

The following effects can be obtained in the tricycle according to the present invention.

First, in the present invention, since the rear wheel of the bicycle can be assembled and detached in one-touch manner without a separate tool, the assembling work is convenient, so that the assembling work can be simplified at the time of manufacturing the bicycle, and users can easily separate the rear wheel So that the volume can be minimized, so that it is easy to move and store.

In the present invention, the basket is fixed to the space between the rear wheels, which is the rear end of the frame, of the tricycle by using a component provided on the frame. That is, since the basket is fixed to the frame by using the basket hanger of the joint cover installed on the frame and the rotation center shaft serving as the rotation center of the rear wheel, the basket can be firmly fixed to the frame without any additional parts and tools.

Further, in the present invention, since the cover for shielding the storage space of the basket can be fixed to the protector steering handle or the auxiliary hooking bar provided on the frame by hanging the cover ring, the effect of preventing the cover from being lost can be obtained.

1 is a perspective view showing a preferred embodiment of a bicycle according to the present invention;
2 is an exploded perspective view showing a configuration of an embodiment of the present invention.
3 is a cross-sectional perspective view showing essential parts of an embodiment of the present invention.
Fig. 4 is a perspective view showing a configuration in which the tip of the basket is hung on the frame side in the embodiment of the present invention. Fig.
5 is a perspective view showing a rotation center axis constituting an embodiment of the present invention.
FIG. 6 is a perspective view showing the use of a supplementary hook bar in place of a protector steering handle in an embodiment of the present invention. FIG.
7 is a cross-sectional perspective view showing the separating lever and its peripheral structure in the embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals even though they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

As shown in the drawings, the frame 10 forms the skeleton of the tricycle of the present invention. The frame 10 has a frame body 10 ', the components of the frame 10 including the frame body 10' are generally made of a pipe-shaped member.

A head tube (not shown) is provided at the front end of the frame 10, more precisely at the front end of the frame body 10 ', and a rear wheel supporting part 13 is provided at the rear end thereof. A handle (14) is provided through the head tube. The handle 14 is held by a passenger and adjusts the traveling direction of the bicycle. The handlebar 14 is provided with a handlebar 16 and the handlebar 16 has grips 16 'at both ends thereof. The handle portion 16 'is a portion that the passenger grips by hand. And a handle stem 18 extending downward from the center of the handle bar 16. The handle stem (18) is rotatably installed through the head tube.

The front fork 20 is connected to the handle stem 18. The front fork 20 is provided with a wheel support bar 22 branched in two at the lower portion and a front wheel 22 'is rotatably installed at the tip of the wheel support bar 22.

A pedal 24 is provided at the center of rotation of the front wheel 22 '. The pedal 24 is installed on a crankshaft 24 'passing through the center of rotation of the front wheel 22' to transmit the top force of the occupant to the front wheel 22 '. Reference numeral 26 denotes a mudguard provided on the front fork 20, and 28 denotes an auxiliary footrest provided on the frame 10.

A rear wheel (29) is provided on the rear wheel support portion (13) of the frame (10). The rear wheel support portion 13 is divided into two halves at the rear end of the frame body 10 ', and a rear wheel 29 is provided at each end thereof. The rear wheel 29 is rotated about a rotation center shaft 62 to be described below.

A basket (30) is provided between the rear wheel support portions (13) of the frame (10). Referring to the configuration of the basket 30, the basket body 32 is installed in a space between the rear wheel supporting portions 13, which is the rear end of the frame 10. The basket body 32 is formed such that the storage space 33 formed therein is opened upward. The basket body 32 has a concave shape in which the storage space 33 is opened upward.

A peripheral flange 34 is formed to surround the edge of the basket body 32. The circumferential flange 34 is extended from the extension 34 'extending by a predetermined width in the radial direction at the entrance of the storage space 33 of the basket main body 32 in parallel with the outer surface of the basket main body 32, And is formed to face the upper end outer surface of the main body 32. A hanging hole 36 is formed on one side of the peripheral flange 34, as shown in FIG. The hooking hole 36 is a portion where the hooking jaw 48 of the basket hanging part 46 to be described below is hooked.

A press-fitting hole 38 is formed in a portion of the outer surface of the basket body 32 facing the rear wheel support portion 13 of the frame 10. The press-in hole 38 is opened to the bottom of the basket body 32 as well as the inlet of the side surface of the basket body 32. The presser hole 38 is press-fitted into the basket hanger 69 of the rotation center shaft 62 to be described below. Here, the basket holder 69 is press-fitted into the press-in hole 38 through the portion of the press-in hole 38 opened to the lower side of the basket body 32. A portion of the basket body 32 where the press-in hole 38 is formed corresponds to the accommodating space 33 and has a protruding structure for forming the press-in hole 38.

When the rotation center shaft 62 is inserted into the press-in hole 38, the inlet of the press-in hole 38 is elastically deformed so as to be opened and restored. For this purpose, an elastic deformation space 39 is formed in the vicinity of which the press-in hole 38 is formed. In this embodiment, elastic deformation spaces 39 are formed on both sides adjacent to the press-in holes 38, as best shown in Fig.

The storage space (33) of the basket body (32) is shielded by the cover (40). The basket body 32 is made of synthetic resin by injection molding, while the cover 42 is made of a flexible and thin material such as cloth. A cover ring 42 is formed on the upper end of the cover 42. The cover ring 42 is hooked on the hook 54 of the protector steering handle 50 to be described below to keep the cover 42 in a predetermined shape to secure a space above the accommodation space 33 . The cover 42 is not necessarily used but is necessary for shielding the accommodating space 33 from the outside.

A joint cover 44 which surrounds a rear end portion of the frame body 10 'and a part of the rear wheel supporting portion 13 is provided at a rear end of the frame body 10', that is, have. The joint cover 44 also serves to support the protector steering handle 50, which will be described below. The joint cover 44 is made of two pieces and joined to each other. A basket hanger (46) is formed on one side of the joint cover (44). A hook jaw 48 is formed at the tip of the basket hook 46 to be inserted into the hook hole 36 of the basket main body 32 to be hooked. The hooking protrusion 48 protrudes in a direction perpendicular to the extending direction of the basket hanger 46.

A protector steering handle (50) is installed on the frame (10) through the joint cover (44). At the upper end of the protector steering handle 50, there is a handle 52, so that the protector hand grips the protector steering handle 50 by hand. The protector steering handle 50 serves to manipulate the direction of the handle 14, and a description of its interlocking structure is omitted. A hook 54 is formed at one side of the protector steering handle 50. The hooking hole 54 is a portion where the cover ring 42 is hooked.

6, when the protector steering handle 50 is not used, the protector steering handle 50 is detached from the joint cover 44, and then the protector steering handle 50 is inserted into the protector steering handle 50, And the protective cap 58 is mounted on the upper end of the auxiliary hook rod 56 previously mounted on the joint cover 44. Then, the cover ring 42 is hooked on the hooking slit 58 'of the protection cap 58. The protective cap 58 has a ball-like appearance.

The rear wheel 29 is rotatably mounted on the rear wheel support portion 13 of the frame 10. For this purpose, a shaft pipe 60 is installed through the rear wheel support portion 13 as shown in FIG. The shaft pipe 60 protrudes from both sides through the rear wheel support portion 13, and the outer side, that is, the side on which the rear wheel 29 is mounted is further protruded. This is for installing the rear stopper 80 in the corresponding portion.

The rotation center shaft 62 penetrates the inside of the shaft pipe 60 and is disposed at both ends of the shaft pipe 60 The end portion protrudes. At one end of the rotation center shaft 62, a locking rib 64 is provided. The engagement rib 64 has a relatively larger outer diameter than other portions of the rotation center shaft 62 to prevent the rear wheel 29 from coming off the rotation center shaft 62. As shown in FIG. 5, the rotation center shaft 62 has a key groove 66 at one side thereof. The keyway (66) serves to prevent the rotation center shaft (62) from escaping from the shaft pipe (60). The hook key 76, which will be described later, is hooked on the key groove 66 so as not to be pulled out from the shaft pipe 60.

A basket hanger (69) is formed at the opposite end of the swinging rib (64) on the rotation center shaft (62). The basket holder 69 is a cylindrical portion and is press-fitted into the press-in hole 38 of the basket body 32. A guide slope 69 'is formed to surround the tip of the basket hanger 69. The guiding inclined surface 69 'is formed such that the cross-sectional area of the guiding inclined surface 69' becomes smaller as the basket hanger 69 moves toward the front end, thereby facilitating insertion of the basket hanger 69 into the press-in hole 38. The guide slope 69 'functions to operate the hanger key 76 described below when the rear wheel 29 is installed on the rear wheel support portion 13 of the frame 10.

A portion of the rear wheel supporter 13 where the shaft pipe 60 is installed is surrounded by the end cover 70. The end cover 70 is made of a synthetic resin material and surrounds the shaft pipe 60 so as not to be exposed. The end cover 70 is generally spherical in shape, but in this embodiment it is made of two pieces.

7, an inner space 71 is formed in the end cover 70, and a lever through-hole 72 is formed to communicate with the inner space 71 from the outside. The lever through-hole 72 is a portion where the release lever 74 to be described below is located. In the inner space 71, elastic member ribs 73 are integrally formed on the end cover 70. One end of the elastic member 79 to be described below is fixed to the elastic member rib 73.

The lever hole 72 is provided with a separation lever 74 for operating a hook key 76 which is hooked on a key groove 66 of the rotation center shaft 62. The separating lever 74 is installed in the lever through-hole 72 so that a part of the separating lever 74 is exposed to the outside of the end cover 70. A hook key 76 is coupled to the separation lever 74. The hanger key 76 is seated in the key groove 66 of the rotation center shaft 62 so that the rotation center shaft 62 is not released from the shaft pipe 60. On both sides of the hook key 76, elastic member hooks 77 are formed. One end portion of the elastic member 79, which provides a force in a direction in which the hooking key 76 is seated in the key groove 68, is hooked on the elastic member hooking portion 77.

The elastic member 79 provides a force for pulling the separating lever 74 toward the inner space 71. In this embodiment, two are used. One end of the elastic member 79 is hooked to the elastic member rib 73 by a screw in the present embodiment and the other end is directly hooked to the elastic member hook portion 77 of the hook key 76. Reference numeral 80 denotes a rear wheel stopper which blocks the rear wheel 29 from rotating so as to stop the bicycle if necessary. A specific configuration of the rear wheel stopper 80 is not described.

Hereinafter, the use of the tricycle according to the present invention having the above-described configuration will be described in detail.

In the present invention, the rear wheels 29 on both sides are rotatably installed on a rotation center shaft 62 installed through a shaft pipe 60 provided in a rear wheel support portion 13 of the frame 10. The end cover 70 passes through the shaft pipe 60 covered with the end cover 70 in a state where the end cover 70 is installed on the rear wheel support portion 13. The guide slope 69 'is provided inside the end cover 70 when the rotation center shaft 62 passes through the shaft pipe 60 and penetrates the inside of the end cover 70 And is guided by the tip of the hook key 76 to allow the hook key 76 to move outwardly of the end cover 70 while elastically deforming the elastic member 79.

When the basket hanger 69 is guided by the hanger key 76, the separating lever 74 is protruded to the outside of the end cover 70 and the key groove 66 is pushed by the hanger key 76 The hooking key 76 is seated in the key groove 68 by the restoring force of the elastic member 79 so that the separating lever 74 is pulled by the elastic member 79. In this case, the rotation center shaft 62 is hooked by the hooking key 76, so that the rotation shaft 62 is not pulled out from the shaft pipe 60. The engagement rib 64 of the rotation center shaft 62 prevents the rear wheel 29 from being disengaged from the rotation center shaft 62.

When the rotation center shaft 62 is installed as described above, the basket hanger 69 of the rotation center shaft 62 on both sides is protruded through the end cover 70. The degree of penetration of the basket hanger 69 in the end cover 70 is determined by the fact that the hanger key 76 is seated in the key groove 66.

The basket body 32 has a hook hole 36 and a press-in hole 38 coupled to the basket holding portion 46 of the frame 10 and the rotation center shaft 62. That is, the basket hanger 46 integrally formed on the joint cover 44 of the frame 10 is hooked on the hook hole 36 and the basket hanger 69 formed on the end of the rotation center shaft 62 And is press-fitted into the press-in hole 38 to be fixed.

Here, the joint cover 44 serves to support the protector steering handle 50, and the rotation center shaft 62 serves as a rotation center of the rear wheel 29. The basket 30 has a separate Since the frame 10 is fixed to the frame 10 without fasteners, the user can easily mount and separate the frame 10 without a separate tool.

The basket 30 is prevented from moving in the direction of the front end of the frame 10 by the basket hanger 46 and the rotation center shaft 62 in a state where the basket 10 is installed as described above. The movement of the basket 30 in the direction of the rotation center axis 62 of both sides is prevented by the rotation center axis 62 and the movement of the basket 30 in the rear direction of the frame 10 is prevented by the rotation And is blocked by the central axis 62.

The reason why the basket 30 is raised in the opposite direction to the ground is that the basket hanger 46 is hooked on the hook hole 36 and the basket hanger 69 of the rotation hinge shaft 62 And is press-fitted into the press-in hole 38 to be cut off. However, when the basket 30 is separated from the frame 10, force is applied to the basket body 32 so that the rotation center shaft 62, which is press-fitted into the press-in hole 38, The main body 32 can be easily separated from the frame 10. That is, the basket body 32 can be easily separated from the frame 10 without a separate tool by applying a force exceeding a predetermined level.

Next, the cover 40, which functions to shield the storage space 33 of the basket 30, is hooked on the hook 54 of the guardrail steering handle 50 at the upper end thereof Or is held by the protective cap 58 of the auxiliary hook rod 56 installed on the joint cover 44 in a state where the protector steering wheel 50 is removed. Therefore, the cover 40 can be prevented from being lost while effectively shielding the storage space 33 of the basket 30.

When the rear wheel 29 is separated from the frame 10, the user may pull the separation lever 72 in the direction of arrow A in FIG. When the release lever 72 is pulled out, the hook key 76 is released from the key groove 66 of the rotation center shaft 62 so that the rotation center shaft 62 is separated from the end cover 70, The pipe 60 can be pulled out.

When the rotation center shaft 62 is separated from the shaft pipe 60 in this way, the rear wheel 29 is separated from the frame 10 together with the rotation center shaft 62. At the same time, the basket hanger 69 of the rotation center shaft 62 can be disengaged from the press-in hole 38 of the basket 30. Of course, this is the case when the basket 30 is installed without being separated from the frame 10.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as falling within the scope of the present invention.

10: frame 10 ': frame body
13: rear wheel support portion 14: handle
16: handle bar 16 ': handle
18: Handle stem 20: Front fork
22: wheel support 22 ': front wheel
24: pedal 24 '; Crankshaft
26: Fenders 28: Auxiliary footrest
29: Rear wheel 30: Basket
32: basket body 33: storage space
34: circumferential flange 34 ': extension
36: Hook ball 38: Indent ball
39: elastic deformation space 40: cover
42: cover ring 44: joint cover
46: basket hook part 48: hook jaw
50: Protector steering handle 52: Handle
54: hook 56: auxiliary hook
58: Protective cap 58 ': Hook slit
60: shaft pipe 62: rotation center shaft
64: Retaining rib 66: keyway
69: basket hanger 69 ': guide slope
70: end cover 71: inner space
72: Lever through hole 73: Elastic member rib
74: release lever 76: hook key
77: elastic member hook portion 79: elastic member
80: Rear wheel stopper

Claims

Frame,
A rear wheel support portion provided at a rear end of the frame and provided with a shaft pipe,
A rotation center shaft installed through the shaft pipe of the rear wheel support portion and installed to rotate the rear wheel,
And a hook key installed on the rear wheel support portion and receiving a resilient force of the elastic member to hook on one side of the rotation center shaft to prevent the rotation center axis from being pulled out of the shaft pipe,
Wherein the one end of the rotation center shaft is formed with a latching rib which is larger in outer diameter than the other part of the rotation center axis,
A basket hanger is formed at an opposite end of the rotation center shaft on which the latching rib is formed. A guide slope is formed at the tip end of the basket hanger such that the cross-sectional area decreases toward the tip.

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The tricycle according to claim 1, wherein a key groove is formed on the rotation center shaft to prevent the rotation center axis from being pulled out of the shaft pipe by hooking the hook key.

[2] The apparatus according to claim 1, wherein the rear wheel support portion provided with the shaft pipe is provided with an end cover surrounding the shaft pipe, wherein the end cover is provided with the hook key supported by an elastic member, Wherein the lever is installed to be exposed through the end cover to the outside of the end cover.

[5] The apparatus according to claim 1, wherein the rear wheel support portion is formed by bifurcation, the shaft pipe is installed at each end portion, the rotation center shaft is provided, Wherein the basket having the press-in ball formed therein is sandwiched between the rear wheel supporting portions, both ends of which are supported by the rotation center shaft on both sides, and the front end is hooked on the basket hanger portion of the joint cover provided at the connection portion of the frame and the rear wheel supporting portion.

[7] The basket as claimed in claim 6, wherein a storage space is formed in the basket so as to open upward, wherein the storage space is shielded by a separate cover, wherein a cover ring is formed on the cover, A tricycle attached to a hook slit formed on a hook provided on a steering handle or a protective cap of a subsidiary hook bar provided on a joint cover of the frame.