KR200481316Y1 - Length adjustable push stick for children's tricycle - Google Patents

Length adjustable push stick for children's tricycle Download PDF

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Publication number
KR200481316Y1
KR200481316Y1 KR2020150001944U KR20150001944U KR200481316Y1 KR 200481316 Y1 KR200481316 Y1 KR 200481316Y1 KR 2020150001944 U KR2020150001944 U KR 2020150001944U KR 20150001944 U KR20150001944 U KR 20150001944U KR 200481316 Y1 KR200481316 Y1 KR 200481316Y1
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KR
South Korea
Prior art keywords
tube portion
moving
fixing
protrusion
movable
Prior art date
Application number
KR2020150001944U
Other languages
Korean (ko)
Inventor
쥔미아오 허
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쥔미아오 허
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Publication date
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Priority to KR2020150001944U priority Critical patent/KR200481316Y1/en
Application granted granted Critical
Publication of KR200481316Y1 publication Critical patent/KR200481316Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K9/00—Children's cycles
    • B62K9/02—Tricycles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

The present invention relates to a three-wheel bicycle spindle in which the length of a fixed pin of a three-wheeled bicycle can be easily adjusted by simply pulling the control member.
The length of the three-wheeled bicycle for a bicycle according to the preferred embodiment of the present invention is formed into a hollow pipe shape, one end is fixed to the frame side of the three-wheeled bicycle, and a plurality of fixing holes are formed through the long- A second tube portion formed in a hollow pipe shape inside and movably coupled in the first tube portion and having a grip capable of being gripped at one end thereof and a second tube portion formed at an outer circumference of the one end side of the second tube portion along the second tube portion A fixing member which is provided inside the other end of the second tube portion and in which a moving space is formed and an insertion hole is formed at the center of the moving space; And is selectively inserted into one of the fixing holes according to whether the second tube portion is moved, A movable member which is elastically movable up and down in the moving space and which moves the fixing protrusion in and out in accordance with the moving direction, one end being fixed to the control member and the other end A wire fixed to the moving member and moving the moving member according to whether or not the moving member is pulled to control the insertion and extraction of the fixing protrusion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a three-

More particularly, the invention relates to a bicycle for bicycles, which is adjustable in length, which can be easily adjusted by simply pulling the control member. .

The three-wheeled bicycle is a combination of play and passenger for infants who have just passed the toddler stage. It consists of one front wheel and two rear wheels for safety. While walking on the pedal or steering the steering wheel, And serves as a riding toy that contributes to the improvement of intelligence.

Recently, a tricycle equipped with a push rod has been released for infants whose parents or guardians are pushing their tricycles safely for infants who are not very good at turning or pedaling, or for infants who are interested in wheat instead of riding a tricycle. Such a push rod is freely adjustable according to the height of the protector or the infant, and its length is usually adjusted by the structure of a spring pin or gear.

However, such a conventional method of adjusting the length of the three-wheeled bicycle pivot is complicated and difficult, and a method for adjusting the length of the bicycle is required.

1. Korean Patent Publication No. 10-2014-0045464 (Apr. 14, 2014)

Therefore, the present invention provides a three-wheel bicycle spindle capable of being easily adjusted by simply pulling the control member with the length of the fixed spindle of the three-wheeled bicycle.

The object of the present invention is to provide a bicycle bicycle comprising a first pipe portion formed in a hollow pipe shape inside and one end fixed to a frame side of a tricycle and having a plurality of fixing holes penetratingly formed in a longitudinal direction thereof, A second tube portion movably coupled to the first tube portion and having a grip capable of being gripped at one end thereof, a control member movably installed along the second tube portion at an outer circumferential edge of one end of the second tube portion, A fixing member provided inside the other end of the tubular portion and having a moving space formed therein and having an insertion hole formed at the center of the moving space, and a fixing member elastically provided in the insertion hole, And the second tube portion is inserted into one of the fixing holes to fix the second tube portion in the first tube portion, A movable member which is provided in the movable space so as to be elastically movable up and down, and which moves the fixing protrusion in and out in accordance with the moving direction; and a fixing member fixed to the control member at one end and fixed to the moving member at the other end, And a wire for moving the movable member to control the insertion and extraction of the fixing protrusion is included.

According to a preferred feature of the present invention, a first spring supported on the back surface of the fixing protrusion is provided inside the insertion hole to allow the fixing protrusion to be elastically biased in the protruding direction, and a moving protrusion is formed on both sides of the fixing protrusion .

According to a preferred feature of the present invention, the movable space is provided with a second spring whose both ends are respectively supported between the fixed member and the movable member, so that the movable member is elastically biased downward in the movable space .

According to a preferred feature of the present invention, the lower portion of the moving member is formed with an inclined portion which is lowered from the upper portion to the lower portion. When the moving member is moved upward, the moving projection is supported by the lower side of the inclined portion, And when the moving member is elastically biased downward by the second spring, the moving projection is supported on the upper side of the inclined portion and the fixing protrusion is elastically biased in the protruding direction by the first spring And is inserted into one of the fixing holes.

According to a preferred feature of the present invention, the closing member is fixed to the other end of the first tube portion, the rotation preventing protrusion is protruded on the inner circumference of the closing member, and the rotation preventing protrusion The grooves are concave in the longitudinal direction so that any rotation is prevented when the second tube portion is moved in the first tube portion.

According to the preferred embodiment of the present invention as described above, the length of the push rod of the three-wheeled bicycle can be easily adjusted by simply pulling the control member. And has an advantage of being easy to use.

Brief Description of the Drawings Fig. 1 is a view showing a use state of a tricycle for a three-wheeled bicycle according to an embodiment of the present invention. Fig.
FIG. 2 is an exploded perspective view of a bicycle for a three-wheel bicycle capable of adjusting the length according to an embodiment of the present invention; FIG.
Figs. 3A to 3C are operational cross-sectional views of a length adjustable tricycle for a bicycle according to an embodiment of the present invention; Figs.

FIG. 1 is a perspective view of a three-wheeled bicycle according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the bicycle for a three-wheeled bicycle according to an embodiment of the present invention. 3A to 3C show an operating sectional view of a length adjustable tricycle for a bicycle according to an embodiment of the present invention.

The length of the three-wheeled bicycle for a bicycle according to the preferred embodiment of the present invention is formed into a hollow pipe shape, one end is fixed to the frame side of the three-wheeled bicycle, and a plurality of fixing holes are formed through the long- A second tube portion formed in a hollow pipe shape inside and movably coupled in the first tube portion and having a grip capable of being gripped at one end thereof and a second tube portion formed at an outer circumference of the one end side of the second tube portion along the second tube portion A fixing member which is provided inside the other end of the second tube portion and in which a moving space is formed and an insertion hole is formed at the center of the moving space; And is selectively inserted into one of the fixing holes according to whether the second tube portion is moved, A movable member which is elastically movable up and down in the moving space and which moves the fixing protrusion in and out in accordance with the moving direction, one end being fixed to the control member and the other end Is fixed to the moving member and includes a wire for moving the moving member depending on whether the moving member is pulled, thereby controlling the insertion and extraction of the fixing protrusion.

Hereinafter, with reference to Figs. 1 to 3C, the constituent members of the three-wheeled bicycle for a bicycle 1 capable of adjusting the length according to a preferred embodiment of the present invention and their operation will be described in detail.

Here, the first tube portion 10 is fixed to the frame of the tricycle, and the second tube portion 20, which will be explained later, is made to move in a length-adjustable manner therein. The inner tube portion 20 is formed in a hollow pipe shape, Is fixed to the frame side of the tricycle and a plurality of fixing holes (11) for fixing the length-controlled second tube portion (20) are formed in the longitudinal direction.

The closing member 12 is fixed to the upper end of the first tube portion 10. The closing member 12 prevents the space from being separated from the second tube portion 20, A rotation preventing protrusion (13) is protruded from one side of the peripheral edge.

The second tube portion 20 is movably inserted into the upper end side of the first tube portion 10. The second tube portion 20 is length-adjusted in the first tube portion 10, 21) is controlled. The second tube portion 20 is formed in a hollow pipe shape like the first tube portion 10 described above and has a handle 21 capable of being gripped at the upper end thereof.

The rotation preventing groove 22 in which the rotation preventing protrusion 13 is moved is concaved in the longitudinal direction on the second tube portion 20 so that the second tube portion 20 moves in the first tube portion 10 When this occurs, the arbitrary rotation is prevented. That is, the second tube portion 20 formed with the rotation preventing protrusion 13 can be moved only in one direction by the rotation preventing groove 22, so that the fixing protrusion 50, which will be described later, It can be moved along the direction.

On the other hand, the control member 30 is installed on the outer periphery of the upper end of the second tube portion 20 so as to be movable along the second tube portion 20. The control member 30 described above may be moved later And to control the receipt and payment of the fixing protrusion 50 to be described later.

The control member 30 may be formed in such a form that it can be pulled in a state sandwiched between the detection and the stop as shown in the figure, or in a form in which the wire 70 to be described later can be pulled It goes without saying that the present invention can be changed in any form.

The fixing member 40 is provided inside the lower portion of the second tube portion 20. The fixing member 40 serves to move the moving member 60 to be described later. A moving space 41 is formed therein and an insertion hole 42 is formed at the center of the moving space 41.

In the moving space 41, there is provided a second spring 43 whose both ends are respectively supported between the fixing member 40 and the moving member 60 so that the moving member 60 is moved in the moving space 41 And is elastically biased in the downward direction.

In the insertion hole 42 described above, a first spring 51 supported on the back surface of the fixing protrusion 50 is provided to elastically bias the fixing protrusion 50 in the protruding direction, A moving projection 52 is protruded.

In the meantime, in the above-described insertion hole 42, a fixing protrusion 50 is elastically provided in a detachable manner. The fixing protrusion 50 described above is fixed to the fixing hole 50 in accordance with whether the second tube portion 20 is moved, The second tube portion 20 is selectively inserted into one of the first tube portion 11 and the second tube portion 20 so that the second tube portion 20 is fixed in position in the first tube portion 10.

That is, if the control member 30 is pulled out, the second tube portion 20 can be freely adjusted in length by being moved downward in the fixing hole 11, and after the length adjustment is completed, The second tube portion 20 can be fixed on the first tube portion 10 again.

In the movement space 41 described above, the moving member 60 is provided so as to be elastically movable up and down. The moving member 60 has a function of loading and unloading the fixing protrusion 50 according to the moving direction thereof will be.

At this time, the lower portion of the moving member 60 is formed with an inclined portion 61 which is lowered from the upper portion to the lower portion. When the moving member 60 is moved upward, The fixing protrusions 50 are moved in the storing direction. When the movable member 60 is elastically biased downward by the second spring 43, the movable projection 52 is supported on the upper side of the inclined portion 61 and at the same time the fixing projection 50 is engaged with the first spring 51 And is inserted into one of the fixing holes 11 while being elastically biased in the protruding direction.

A wire 70 is fixedly connected between the control member 30 and the moving member 60. The wire 70 moves the moving member 60 according to whether the wire 70 is pulled, 50) to be controlled. At this time, the control member 30 is connected and fixed by rivets 31 fixed to both sides of the second tube portion 20, and the second spring 43, which is positioned in the movement space 41, And the connection is fixed.

Hereinafter, with reference to FIGS. 3A to 3C, a method of using the three-wheeled bicycle for a bicycle according to a preferred embodiment of the present invention will be described in detail.

First, when it is necessary to adjust the position of the knob 21, the control means is held between the detection and the stop, and the wire 70 is pulled upward to be pulled. As the wire 70 is pulled, the moving member 60 is moved upward in the moving space 41. At this time, the moving protrusion 52 is supported by the lower side of the slant portion 61, The fixing projections 50 are released from the fixing holes 11 and the second tube portions 20 can be freely moved.

The force of pulling the control member 30 may be removed after the fixing protrusion 50 comes out of the fixing hole 11. At this time, the second tube portion 20 is rotated by the rotation preventing protrusion 13 and the rotation preventing groove 22 are moved only in the direction in which the fixing holes 11 are formed so that when the fixing projections 50 reach the adjacent fixing holes 11 by the first springs 51, As shown in Fig.

That is, when the force to pull the control member 30 is removed, the movable member 60 is elastically biased downward by the second spring 43, and the movable projection 52 is supported on the upper side of the inclined portion 61 The fixing projection 50 is resiliently biased by the first spring 51 in the protruding direction so that the second tube portion 20 protrudes outward through the fixing hole 11 and the second tube portion 20 protrudes from the first tube portion 10, Lt; / RTI >

When the length of the fixing hole 11 and the adjacent fixing hole 11 are not adjusted, the second tube portion 20 is moved while the control member 30 is pulled up, Next, the control member 30 removes the pulling force.

As the present invention can be variously modified by those skilled in the art without departing from the scope of the claims claimed in the scope of the utility model registration, the technical protection scope of the present invention is not limited to the specific preferred embodiments But is not limited to the example.

1: Adjustable length tricycle for bicycle
10: First tube
11: Fixed ball
12:
13: rotation prevention projection
20:
21: Handle
22: Anti-rotation groove
30: control member
31: Rivet
40: Fixing member
41: Moving space
42: Insertion ball
43: second spring
50: Fixing projection
51: first spring
52:
60: movable member
61:
70: wire

Claims (5)

A first pipe portion having an interior formed in a hollow pipe shape, one end fixed to a frame side of the tricycle and a plurality of fixing holes penetratingly formed in the longitudinal direction;
A second tube portion having an inside formed in a hollow pipe shape and movably coupled within the first tube portion and having a grip capable of being held at one end;
A control member movably installed along the second tube portion on an outer peripheral edge of one end of the second tube portion;
A fixing member provided inside the other end of the second tube portion and having a moving space formed therein and an insertion hole formed at the center of the moving space;
A fixing protrusion elastically housed in the insertion hole and selectively inserted into one of the fixing holes depending on whether the second tube portion is moved to fix the second tube portion in the first tube portion;
A moving member which is elastically movable up and down in the moving space, and which moves the fixing protrusion in accordance with the moving direction; And
And a wire which is fixed to the control member at one end and is fixed to the moving member at the other end and moves the movable member according to whether the movable member is pulled,
A first spring supported on the back surface of the fixing protrusion is provided in the insertion hole so that the fixing protrusion is elastically biased in a protruding direction and a moving protrusion is formed on both sides of the fixing protrusion,
Wherein the movable space is provided with a second spring whose both ends are respectively supported between the fixed member and the movable member so that the movable member is elastically biased downward in the movable space,
Wherein the movable protrusion is supported by the lower side of the inclined portion when the movable member is moved upward and the fixing protrusion is moved in the storing direction while the movable protrusion is supported by the lower side of the inclined portion, When the member is elastically biased to the lower side by the second spring, the moving projection is supported on the upper side of the inclined portion, and at the same time, the fixing projection is elastically biased in the projecting direction by the first spring to be inserted into one of the fixing holes Features a length adjustable tricycle for a tricycle. The method according to claim 1,
A rotation preventing protrusion protrudes from the inner circumference of the closing member, and a rotation preventing groove through which the rotation preventing protrusion is moved is formed concavely in the longitudinal direction on the second tube portion. Wherein the second tubular portion is prevented from rotating arbitrarily when the second tubular portion is moved in the first tubular portion. delete delete delete
KR2020150001944U 2015-03-27 2015-03-27 Length adjustable push stick for children's tricycle KR200481316Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020150001944U KR200481316Y1 (en) 2015-03-27 2015-03-27 Length adjustable push stick for children's tricycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020150001944U KR200481316Y1 (en) 2015-03-27 2015-03-27 Length adjustable push stick for children's tricycle

Publications (1)

Publication Number Publication Date
KR200481316Y1 true KR200481316Y1 (en) 2016-09-09

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KR2020150001944U KR200481316Y1 (en) 2015-03-27 2015-03-27 Length adjustable push stick for children's tricycle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108082263A (en) * 2018-02-01 2018-05-29 嘉兴市优贝童车有限公司 A kind of perambulator is buckled with push rod

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200299060Y1 (en) * 2002-07-03 2003-01-03 이태근 a handle supporter no-rotating structure for a scooter
US7222871B2 (en) * 2005-04-25 2007-05-29 Radio Flyer Inc. Tricycle push handle
CN201056223Y (en) * 2007-07-05 2008-05-07 明门实业股份有限公司 Baby carriage folding mechanism
KR20140045464A (en) 2014-01-27 2014-04-16 주식회사 유진로봇 Tricycle for children

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200299060Y1 (en) * 2002-07-03 2003-01-03 이태근 a handle supporter no-rotating structure for a scooter
US7222871B2 (en) * 2005-04-25 2007-05-29 Radio Flyer Inc. Tricycle push handle
CN201056223Y (en) * 2007-07-05 2008-05-07 明门实业股份有限公司 Baby carriage folding mechanism
KR20140045464A (en) 2014-01-27 2014-04-16 주식회사 유진로봇 Tricycle for children

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108082263A (en) * 2018-02-01 2018-05-29 嘉兴市优贝童车有限公司 A kind of perambulator is buckled with push rod

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