CN2895221Y

CN2895221Y - Bicycle frame pipe connection device

Info

Publication number: CN2895221Y
Application number: CN 200620008079
Authority: CN
Inventors: 林俊宏
Original assignee: Ideal Bike Corp
Current assignee: Ideal Bike Corp
Priority date: 2006-03-16
Filing date: 2006-03-16
Publication date: 2007-05-02
Anticipated expiration: 2016-03-16

Abstract

The utility model discloses a pipe body coupler of the bicycle frame which can improve the rigidity of various pipes joint. Aiming at the above-mentioned improvement, two rods separated from the upper and lower pipes are clamped and arranged on both sides of the vertical pipe and a hollow poroid sleeve joint part on the cutting line direction of the vertical pipe is arranged in the two rods, providing for the connection of the rear fork pipe. In addition, the end different from the sleeve joint part end forms a connecting part which is directly or indirectly fixed to the pipe head; the vehicle frame can therefore be suitable for small bicycle frame with smooth installation under the stable connecting rigidity condition of the vertical and cross pipes of the bicycle frame.

Description

The body coupling device of bicycle rack

Technical field

The utility model relates to a kind of bicycle rack structure, knows clearly it, is meant that a kind of the lifting engages intensity and novel coupling device between vehicle frame vertical, horizontal body, is to belong to the bike tech development field.

Background technology

Press, the body frame structure for automotive of bicycle is except that the weight of need carrying rider own, if when running into rugged road surface or the depression road surface being arranged, cycle frame also need bear the antagonistic force that produces when passing through the road surface, the body frame structure for automotive rigidity of therefore being responsible for all external weight of carrying then more highlights its importance.

Speak of the body frame structure for automotive stiff problem, each that need just constitute cycle frame is vertical, laterally the joint construction between body is deeply probed into, please cooperate with reference to shown in Figure 7, the bicycle frame structure that this is known, mainly comprise a head pipe longitudinally, on the pipe, there are on one pipe and pipe once in lower end horizontal welding respectively, last pipe free end then engages with standpipe upper end solid welding longitudinally, the five-way pipe of following Guan Zeyu standpipe bottom is welded to each other, then in standpipe rear end welding one suitable long sleeve pipe, sleeve pipe then supplies the Y shape Seat stay of difference sheathed, and five-way pipe rear end then is welded to each other by two Chain stays and the Seat stay of solid welding, uses to constitute a complete body frame structure for automotive.

Each vertical, horizontal body of known body frame structure for automotive is still adopted with welding technique so far and is engaged, thereby body frame structure for automotive carries external weight and concentrates on standpipe mostly, but know by knowing to peep in graphic, the standpipe of known body frame structure for automotive and last pipe welding manner, be that the joint that will go up pipe is offered into a joint shape that matches with standpipe, in order to the end of last pipe and standpipe against and give solid welding and engage; Aforementioned vertical standpipe with transversely manage the joining technique means, only bring the combine rigidity of standpipe with the single weld nugget of last pipe (only single side solid welding), therefore, the body frame structure for automotive of bicycle is because of load-carrying and bear rugged road surface than under the big antagonistic force situation, the standpipe and the last pipe joint that then cause single weld nugget to engage easily produce structural failure, and then the least happy danger that drives of seeing of the customer that derives is pacified the facts.

For overcoming above-mentioned disappearance, the body frame structure for automotive that No. 158197 patent case of US Patent arranged, it mainly is that three-way pipe is socketed on standpipe, utilizes the junction surface of three-way pipe to connect upward pipe again, other holds two fit portions of difference then to connect for Seat stay and establishes, to reach preferable anchoring strength between the longitudinal and transverse body of vehicle frame; Yet the two fit portions and the standpipe of three-way pipe rear end difference are oblique setting, so Seat stay is connected and can be subject to the standpipe that two oblique fit portion confluces are longitudinally set with when section links with fit portion and stops, and because of the linking section of Seat stay and fit portion when cemented, for getting the cemented intensity of a safety, then then need there be certain cemented length in the fit portion of three-way pipe, if when changing each body binding of trolley frame into, length is fixing can't to be changed because Seat stay is connected with fit portion, add that the Seat stay length relative scale that is connected in the standpipe rear reduces, cause trolley frame to pack into smoothly, make this structure can't be applicable to that trolley frame uses;

The three-way pipe joint portion that utilization is set in standpipe is spirally connected and goes up pipe, be spirally connected No. 5129666 patent case of US Patent of Chain stay of the fit portion of rear end difference, also existing three-way pipe to connect the vehicle frame body satisfies under the body joint hard condition, can't be applicable to that but the trolley frame body connects the identical disappearance of establishing, therefore, how to reach the preferable anchoring strength of tool between the vehicle frame body, can have the vehicle frame body connected structure that large and small vehicle frame all is suitable for again concurrently, then belong to the urgent bottleneck of breaking through of bicycle industry.

The utility model content

At the problem of above-mentioned existence, the purpose of this utility model is to provide a kind of body coupling device of bicycle rack, can promote bicycle rack vertical, horizontal body bond strength simultaneously, and also can have big trolley frame concurrently all applicable is target.

For reaching the above-mentioned default structure effect of finishing, now two bodies of rod by last pipe or following pipe difference are located in the standpipe both sides, in two bodies of rod and be provided with along the poroid fit of the hollow portion of standpipe tangential direction setting and connect the usefulness of establishing for back breeches pipe, other two bodies of rod are different from shrinking on part end and then are formed with a junction surface, and the junction surface then is fixedly arranged on the head pipe in direct or indirect mode.

The utility model divides inconsistent two bodies of rod and utilizes two bodies of rod to be located in the standpipe both sides by horizontal upper and lower pipe, so can provide two more firm above weld nugget effects of the vertical, horizontal body, simultaneously, can allow again after back breeches pipe and the socket of fit portion, can take this opportunity to widen back breeches pipe Yu the distance between the Brake vehicle seat, allow the back breeches pipe of trolley frame get smoothly and install and use,, be worth the body connected structure technology of the novel vehicle frame that industrial community widelys popularize deeply with safety and the stability of keeping bicycle riding.

Description of drawings

Fig. 1 is the body frame structure for automotive decomposing schematic representation of the body coupling device of the utility model bicycle rack.

Fig. 2 is the body frame structure for automotive integral outer appearance scheme drawing of the body coupling device of the utility model bicycle rack.

Fig. 3 is the body frame structure for automotive integral outer appearance scheme drawing of body coupling device second embodiment of the utility model bicycle rack.

Fig. 4 is the body frame structure for automotive integral outer appearance scheme drawing of body joint construction the 3rd embodiment of the utility model bicycle rack.

Fig. 4 a is hollow ㄩ type pipe and the standpipe joint partial schematic diagram of the 4th figure.

Fig. 5 is the body frame structure for automotive integral outer appearance scheme drawing of body coupling device the 4th embodiment of the utility model bicycle rack.

Fig. 5 a is block and the standpipe joint partial schematic diagram of Fig. 5.

Fig. 6 is the body frame structure for automotive integral outer appearance scheme drawing of body coupling device the 5th embodiment of the utility model bicycle rack.

Fig. 7 is known bicycle rack schematic appearance.

[primary clustering nomenclature]

10-----body frame structure for automotive 12-----standpipe

121----five-way pipe 14-----goes up pipe

16-----is pipe 18-----Seat stay down

20-----Chain stay 22-----head pipe

30-----hollow ㄩ shape pipe 40-----block

181----is connected section A------fit portion

B------junction surface C------Brake vehicle seat

The specific embodiment

The utility model is relevant a kind of vehicle frame body connected structure of strengthening bicycle frame structure's rigidity, please refer to Figure 1 and Figure 2, and the body that generally constitutes cycle frame comprises:

One standpipe 12 longitudinally, the forward and backward two ends on standpipe 12 tops engage pipe 14 and one Seat stay 18 on respectively, and the hollow five-way pipe 121 forward and backward two ends of standpipe 12 bottoms then engage respectively manages 16 and one Chain stay 20; Upper and

lower pipe

14,16 other ends of standpipe 12 front ends then engage the head pipe 22 parallel with standpipe jointly;

The utility model is mainly improved the body connected structure that is vehicle frame, juror and have the knack of the technical characterictic that this operator can the utility model connected structure more than you know for the benefit of now cooperates Fig. 1 to describe in detail to the vertical standpipe shown in Figure 5 and the connected structure of pipe transversely:

At first with reference to Figure 1 and Figure 2, going up of this body frame structure for automotive 10 manages 14, be to utilize two hollow tubes of an end difference directly to form two bodies of rod that are located in standpipe 12 sides, two A of fit portion that hollow hole is implemented aspect are extended along the standpipe tangential direction in this two bodies of rod inboard, for the usefulness of the Seat stay 18 front ends linking section 181 socket combinations wide than path; The different shrinking on part end of two bodies of rod then is formed with a junction surface B, then directly sets firmly with pipe 14 on two hollows and head pipe 22.

Two bodies of rod of the present utility model are except that implementing the aspect with pipe on the hollow of two differences shown in Fig. 1,2, also can be as shown in Figure 3, link this standpipe 12 and manage 14 with the going up of single hollow tubular of head pipe 22, can establish solid welding with standpipe 12 folders, near then dividing the inconsistent two hollow tubular bodies of rod that are located in the standpipe side in standpipe 12 ends, also be provided with the poroid A of fit portion of hollow along standpipe 12 tangential directions in two bodies of rod, for Seat stay 18 sockets;

And for example shown in Fig. 4 and Fig. 4 a, this laterally is located in two bodies of rod of standpipe 12 both sides, also must manage 30 members for independent hollow ㄩ shape, the two hollow tubular bodies of rod of both sides difference, can establish solid welding with the standpipe folder, 30 of this hollow ㄩ shape pipes utilize junction surface B to be connected combination with last pipe 14, see through last pipe and front end indirectly and set firmly, hollow ㄩ shape is managed in two bodies of rod of 30 sides to extend along standpipe 12 tangential directions and then is formed with two A of fit portion in addition, for Seat stay 18 sockets;

In addition, shown in Fig. 5 and Fig. 5 a, this laterally is located in two bodies of rod of standpipe 12 both sides, be meant independent block 40 members, the hollow tube that both sides form can set firmly solid welding with standpipe 12, is formed with the A of fit portion along standpipe 12 tangential directions in two bodies of rod and connects for Seat stay 18, block 40 also sees through the junction surface B that is different from shrinking on part end and is connected with last pipe 14, is fixedly arranged on front end 22 indirectly by last pipe again.

Shown in the utility model Fig. 1 to Fig. 5 embodiment, two bodies of rod of pipe 14 differences are located in standpipe 12 both sides in the utilization, make to go up that pipe 14 and standpipe 12 are formed with plural weld nugget and the anchoring strength effect that can strengthen 14 of standpipe 12 and last pipes, as for the parallel fit portion A of two bodies of rod that are located in standpipe 12 both sides along the formation of standpipe 12 tangential directions, the linking section 181 that then can supply Seat stay 18 is to surmount the aspect combination of standpipe 12, making between Seat stay 18 to Brake vehicle seat C apart from length is not subjected to cemented essential length institute limited, be with, the assembling trolley frame also can install and use smoothly.

Removing last Fig. 1 pipe to the utilization shown in Figure 5 divides inconsistent two bodies of rod to be located in standpipe both sides design concept, also can import the hollow five-way pipe 121 of standpipe shown in Figure 6 12 bottoms and engaging of 16 of following pipes, possess Fig. 1 to Fig. 5 equally and implement pipe and five-way pipe two weld nuggets under the aspect, and suitable trolley frame assembling effect.

In sum, the body coupling device of bicycle rack of the present utility model, see through and be located in the design of standpipe both sides hollow tubular fit portion, can satisfy between vehicle frame vertical, horizontal body tool more than two under the firm welding hard condition, also this technology can be imported trolley frame, be not subject to the restriction of cemented length, and can keep bicycle single-piece safety and steadiness, non-obvious progressive effect like this, more highlighting the utility model and really promote existing bicycle frame structure rigidity effect, is a novel creation that meets novelty and progressive.

Claims

1, a kind of body coupling device of bicycle rack, it is characterized in that, this coupling device includes two bodies of rod, this two bodies of rod system is located in the standpipe both sides, this two bodies of rod inboard is provided with fit portion along the tangential direction of standpipe, and two bodies of rod are different from shrinking on part end and then are formed with a junction surface, wherein, this fit portion can connect for back breeches pipe and establish, and the junction surface then is fixedly arranged on the head pipe in direct or indirect mode.

2, the body coupling device of bicycle rack according to claim 1 is characterized in that, described two bodies of rod are meant on two hollows that are fixedly arranged on difference between head pipe and standpipe and manage.

3, the body coupling device of bicycle rack according to claim 1 is characterized in that, described two bodys are meant the single pipe of going up that is fixedly arranged on a pipe and standpipe and divides inconsistent two bodies of rod in close standpipe end.

4, the body coupling device of bicycle rack according to claim 1 is characterized in that, described two bodys are to be an independent hollow ㄩ shape pipe and a both sides difference hollow tube.

5, the body coupling device of bicycle rack according to claim 1 is characterized in that, described two bodies of rod are meant to be that a block and both sides are hollow tube.

6, the body coupling device of bicycle rack according to claim 1 is characterized in that, described two bodies of rod are meant under the two difference shape hollows that are fixedly arranged between head pipe and standpipe bottom five-way pipe and manage.