KR20160074267A - Drop-out for adjustable bicycles - Google Patents

Drop-out for adjustable bicycles Download PDF

Info

Publication number
KR20160074267A
KR20160074267A KR1020140183382A KR20140183382A KR20160074267A KR 20160074267 A KR20160074267 A KR 20160074267A KR 1020140183382 A KR1020140183382 A KR 1020140183382A KR 20140183382 A KR20140183382 A KR 20140183382A KR 20160074267 A KR20160074267 A KR 20160074267A
Authority
KR
South Korea
Prior art keywords
rear wheel
dropout
nut
bicycle
connecting portion
Prior art date
Application number
KR1020140183382A
Other languages
Korean (ko)
Inventor
최준영
Original Assignee
최준영
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 최준영 filed Critical 최준영
Priority to KR1020140183382A priority Critical patent/KR20160074267A/en
Publication of KR20160074267A publication Critical patent/KR20160074267A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/16—Tensioning or adjusting equipment for chains, belts or the like

Abstract

The present invention relates to a dropout for a bicycle capable of precisely adjusting, and in particular, unlike a conventional dropout which adjusts the tension of the chain and aligns the axis of the rear wheel back and forth during center alignment of the axle, Out.
The present invention relates to a bicycle comprising: a wheel shaft of a rear wheel of a bicycle; a pair of rear wheel connecting portions for supporting both ends of the wheel shaft; a screw-type dropout formed in the rear wheel fixing portion of the bicycle frame, And first and second nuts which are coupled to threads of the drop-out dropout to support both ends of the rear wheel connecting portion. According to the present invention, one side of the rear wheel coupling portion is supported by the first nut coupled to the thread of the dropout rod, and the other side of the rear wheel coupling portion is supported by the second nut to easily adjust the chain tension and center alignment of the shaft .

Description

Adjustable Bike Dropout {.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dropout for a bicycle which can be precisely controlled, and more particularly to a dropout for a bicycle, The present invention relates to a dropout that fixes a fixed rear wheel connecting portion to a dropout and adjusts a rear wheel connecting portion using a screw.

The present invention relates to an adjustable dropout for a bicycle, and more particularly to a dropout for a bicycle which is adjustable in tension of a chain and centering a shaft of the rear wheel, The present invention relates to a dropout capable of precise adjustment even in the case of " dropout ".

Generally, as shown in Fig. 1, a bicycle includes a bicycle frame 12, a dropout 14 formed at a rear portion of the frame and having a wheel shaft of a rear wheel inserted and fixed therein, And a nut 18 fastened to the wheel shaft 16 of the rear wheel and the threaded portion formed on the wheel shaft of the rear wheel to fix the wheel axle of the rear wheel to the dropout of the bicycle frame.

Particularly, a slot 20 is formed in the dropout 14 formed in the frame so that the wheel shaft 16 of the rear wheel mounted at the center of the rear wheel can be slid back and forth. At this time, the slot 20 of the dropout is formed in an open form in any one direction.

In this dropout, the wheel axle 16 of the rear wheel is fixed. The adjustment of the rear wheel is performed by loosening the nut 18 from the wheel axle 16 of the rear wheel formed on both sides thereof and then moving the wheel axles 16 back and forth on the slot 20 having one side of the dropout 14 on both sides thereof opened And then the loosened nut 18 is fastened again and fixed.

As shown in Fig. 2, a bicycle frame 12, a shaft-shaped dropout 22 formed at the rear of the frame, and a hole (not shown) coupled to the dropout and having a hole through which the wheel shaft of the rear wheel is inserted and fixed And a nut (not shown) which is fastened to the threaded portion formed on the wheel shaft of the rear wheel and presses the fixed portion against the dropout of the bicycle frame.

However, such conventional dropout has the following problems.

The tensioning of the chain and alignment of the wheel axes at the existing dropout relaxes the nut 18 at the wheel axle 16 of the rear wheel and then moves the nut 18 along the slot 20 of the dropout or the dropout 22 A wheel shaft 16 of the rear wheel is slid to a proper position and then a nut 18 is fastened and fixed. The wheel shaft is freely moved back and forth along the dropout, It was hard to tell. If the tension of the chain is not properly adjusted because the wheel axle of the rear wheel is not fixed at the correct position, the chain may be disengaged during driving. If the wheel axles on both sides of the rear wheel are not aligned properly, Which led to large and small accidents. If such safety accidents occur at high speeds, it will lead to serious accidents, resulting in serious accidents.

It is an object of the present invention to provide a bicycle rear wheel in which a wheel-shaft of a bicycle rear wheel is formed into a screw shape and a structure in which a screw-shaped dropout and a nut are combined is used. Which can precisely adjust the tension of the chain and adjust the shaft center, thereby preventing a safety accident that may occur due to an incorrect adjustment of the tension of the chain and the adjustment of the shaft center.

A dropout for a bicycle which can be precisely adjusted according to the present invention comprises a wheel shaft for rotation of a rear wheel and a rear wheel of a bicycle and a pair of rear wheels which are fixed by sandwiching both sides of the wheel shaft, And a pair of nuts for fixing a rear wheel coupling portion coupled to the screw-type drop-out portion. The pair of nuts includes a coupling portion and a screw-type drop-out portion into which the rear wheel coupling portion is inserted.

The details of other embodiments are included in the detailed description and drawings.

The bicycle dropout capable of precisely adjusting the present invention has the following effects.

Since the rear wheel coupling portion for supporting the wheel axle of the rear wheel is coupled to the screw type dropout using a screw, the rear wheel coupling portion can be slid along the screw type dropout using the screw, The tension of the chain can be precisely adjusted by precisely adjusting the position of the rear wheel connecting portion to which the rear wheel wheel shaft is connected. Thus, it is possible to prevent a safety accident that may occur due to a center error of the wheel shaft.

1 shows a conventional dropout
FIG. 2 shows a conventional dropout
FIG. 3 is a perspective view of a rear wheel connecting structure using a screw-type dropout according to the present invention.
Figure 4 is a perspective view of a threaded dropout

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

The dropout according to the present invention includes a wheel shaft 2 of a rear wheel that rotatably supports a rear wheel 1 of a bicycle and a wheel shaft 2 of both rear wheels of a rear wheel 1, A pair of rear wheel connecting portions 3 formed with a hole that can be fitted to the rear wheel connecting portion 3 and a rear wheel connecting portion 3 formed to protrude rearward from the bicycle frame and threaded on the outer circumferential surface, A first nut 5 screwed to the threaded dropout 4 to support one side of the rear wheel connecting portion 3 inserted into the threaded dropout 4, a first nut 5, And a second nut (6) screwed to the screw-type dropout (4) after the connection part (3) is coupled to support the other side of the rear wheel connecting part (3) inserted into the screw - type dropout do.

Hereinafter, each of these components will be described in more detail as follows.

A threaded dropout (4) is formed so as to protrude rearward from the bicycle frame. At this time, the rear wheel connecting portion 3 can be inserted into the threaded dropout 4 on both sides and the first and second nuts 5 and 6 can be coupled to the outer circumferential surface of each threaded dropout 4 Threads are formed. Further, the threaded dropout 4 is formed to have a sufficient diameter to support the load of the rear wheel.

The pair of rear wheel connecting portions 3 are formed with unshown coupling portions so that the wheel shafts 2 of the rear wheels can be engaged with each other. Both ends of the wheel shafts 2 of the rear wheels are connected to the respective rear wheel connecting portions 3, And the rear wheel connecting portion 3 is formed with a hole into which the threaded dropout 4 can be inserted and the threaded dropout 4 is inserted into the hole of the rear wheel connecting portion 3 The rear wheel connecting portion 3 is assembled so as to be movable back and forth along the threaded dropout 4.

The fixing member for fixing the rear wheel connecting portion 3 includes a first nut 5 coupled to the fixed gear before the rear wheel connecting portion 3 is fitted to support one end of the rear wheel connecting portion 3, And a second nut 6 coupled to the dropout 4 and coupled to the rear wheel coupling portion 3 to support the other end of the rear wheel coupling portion 3. [

The first nut 5 is screwed to the threaded dropout 4 to set the fixing position of the rear wheel connecting portion 3 and the rear wheel connecting portion 3 is fastened to the first nut 5 And the second nut 6 is engaged with the threaded dropout 4 so as to be brought into contact with the rear wheel connecting portion 3 And the both ends of the rear wheel connecting portion 3 are pressed by the first and second nuts 5 and 6 so that the rear wheel connecting portion 3 is kept fixed at a desired position.

The control of the dropout thus made is as follows.

First, the first nut 5 is screwed to the fixed position of the threaded dropout 4 on both sides of the bicycle frame, and then a pair of rear wheel connecting portions 3, to which the wheel shaft 2 of the rear wheel is coupled, The wheel connecting portion 3 is slid to the position where the first nut 5 is fixed and is brought into contact with one side of the first nut 5 to fit into the threaded dropout 4 . That is, the rear wheel is put on the desired position of the threaded dropout 4 of the bicycle frame.

The rear wheel connecting portion 3, which is in one end contacted with the first nut 5, is rotated by rotating the first nut 5 coupled to the threaded dropout 4 on both sides of the frame for adjusting the chain tension and aligning the center of the shaft. And the second nut 6 is coupled to the threaded dropout 4 to adjust the tension of the chain to a center alignment position of the shaft and to connect the rear wheel connecting portion 3 ), The mounting is completed.

The dropout according to another embodiment of the present invention is characterized in that one adjustment nut 7 is fixed to the rear wheel connecting portion 3 without the first and second nuts 5 and 6, And the rear wheel connecting portion 3 to which the wheel shaft 2 of the rear wheel is mounted is connected to the screw-type dropout 4 of the bicycle frame by the adjusting nut 7, To the desired position.

This precise adjustable dropout for bicycles enables the novice to precisely adjust to the desired position by applying a coupling structure using screws and nuts to the dropout on which the wheel axle of the bicycle rear wheel is mounted. , It is possible to prevent a safety accident that may occur due to an incorrect adjustment of the tension of the chain and an adjustment of the shaft center.

1: Rear wheel 2: Wheel shaft of the rear wheel
3: Rear wheel connection 4: Screw-type dropout
5. First nut 6: Second nut
7. Adjusting nut

Claims (3)

A wheel shaft of a rear wheel provided on a rear wheel of a bicycle;
A pair of rear wheel connecting portions on which the wheel shafts of the rear wheels are supported;
A screw-type dropout protruding rearward from the bicycle frame and fitted with the rear wheel connecting portion and formed with threads on an outer circumferential surface thereof; And a nut screwed into the threaded dropout to secure the rear wheel connection. ≪ RTI ID = 0.0 > The method according to claim 1,
Wherein the nut provided on the threaded dropout comprises an adjustable nut inserted into the rear wheel connection. The method according to claim 1,
The nut provided in the threaded dropout includes a first nut for supporting one side of the rear wheel connecting portion and a second nut for supporting the other side of the rear wheel connecting portion.
KR1020140183382A 2014-12-18 2014-12-18 Drop-out for adjustable bicycles KR20160074267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140183382A KR20160074267A (en) 2014-12-18 2014-12-18 Drop-out for adjustable bicycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140183382A KR20160074267A (en) 2014-12-18 2014-12-18 Drop-out for adjustable bicycles

Publications (1)

Publication Number Publication Date
KR20160074267A true KR20160074267A (en) 2016-06-28

Family

ID=56366223

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140183382A KR20160074267A (en) 2014-12-18 2014-12-18 Drop-out for adjustable bicycles

Country Status (1)

Country Link
KR (1) KR20160074267A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10427747B2 (en) 2016-09-02 2019-10-01 Hyundai Motor Company Bicycle frame structure having a drop-out
US11713092B2 (en) 2018-06-25 2023-08-01 Hyundai Motor Company Drop-out mounting structure of bicycle frame

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10427747B2 (en) 2016-09-02 2019-10-01 Hyundai Motor Company Bicycle frame structure having a drop-out
US11713092B2 (en) 2018-06-25 2023-08-01 Hyundai Motor Company Drop-out mounting structure of bicycle frame

Similar Documents

Publication Publication Date Title
WO2018202672A3 (en) Steering column for a motor vehicle and method for producing a steering column
US9415828B2 (en) Adjustable bicycle dropout integrated with wheel skewer
KR20160074267A (en) Drop-out for adjustable bicycles
US9409619B2 (en) Bicycle tensioning device
CN102313962A (en) Lead screw nut focusing mechanism with gap elimination
US8561498B2 (en) Bicycle eccentric bottom bracket
CN102705341A (en) Left-handed and right-handed rotation nut locking device for large-diameter shaft end
JP2015074447A (en) Device for stopping lateral displacement of bicycle chain
EP3472479A1 (en) Adjustable-length connecting rod for turbomachine
EP2303675A1 (en) Quick release clamp for a bicycle wheel
CN102233361B (en) Wire-outlet die holder of wire drawing machine
WO2013189174A1 (en) Breaker pole connection device and breaker using same
CN202097217U (en) Wire outlet eye die holder of wire drawing machine
CN208304468U (en) A kind of milling platform support column
CN106917853A (en) A kind of belt wheel transmission adjustable eccentric tensioning apparatus
JP2013024299A (en) Belt tension adjusting device and electric power steering device
CN105922029A (en) Special clamp for hole boring and machining of special-shaped part
CN205817343U (en) A kind of special-shaped part Boring special fixture
KR101050295B1 (en) A connection frame of the power transmission device of chainless bicycle
CN104865777B (en) Camera support
CN203904550U (en) Upper pressure-adjustment lever type pneumatic pressurization cradle
CN208439377U (en) Motorcycle and its direction are component
CN105058286B (en) A kind of adjustable opened jaws wing nut spanner
CN204114012U (en) The cylindrical gear drive of singe screw adjustment backlash
CN107876906A (en) The rapid-aligning cutting frock of gear with end face dog

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application