CN2190606Y

CN2190606Y - Angle adjustable handle vertical tube

Info

Publication number: CN2190606Y
Application number: CN 94209532
Authority: CN
Inventors: 陈金培
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-05
Filing date: 1994-05-05
Publication date: 1995-03-01
Anticipated expiration: 2004-05-05

Abstract

The utility model relates to a handle vertical tube of a bicycle. A pivoted body is pivoted on the pivoted part of the end part of the handle vertical tube. A through long slot and a convexly arranged clamping tooth are arranged along the outer ring face of the pivoted part. A matched clamping tooth matched with the clamping tooth of the handle vertical tube is arranged on the socket end of a vertical tube. The handle vertical tube is connected with the vertical tube by a stay bolt which is orderly penetrated through the pivoted body and the locking hole of the vertical tube. When the stay bolt is unthreaded, the handle vertical tube can be swung downward or upward along a swivel round the pivoted part with the long slot. After the clamping tooth and the matched clamping tooth are meshed, the stay bolt is locked tightly to obtain the purpose of adjusting the relative angle of the handle vertical tube and the vertical tube. The utility model has the advantages of convenient operation, simple structure and easy fabrication.

Description

Angle adjustable handle vertical tube

The utility model relates to a kind of stem of bicycle.

Common bicycle general common to two kinds of stems are arranged, a kind of two ends of stem have a leader's T-Ring and a front fork sleeve pipe respectively, be placed in the front fork of bicycle with this front fork sleeve pipe, the handle of bicycle then is set in the handle T-Ring, grips for the rider.The stem of another kind of bicycle is at an end direct welding one extension bar of stem away from the handle T-Ring, for the front fork that is plugged in bicycle, and handle is placed in aforesaid handle T-Ring.But above-mentioned common bicycle has following defective: 1, stem all becomes fixing angle with the front fork of bicycle, makes handle also only can keep same state, and the angle that can't adjust handle is to adapt to the demand that difference drives the people.2, because of the handle fixed angle, thus can't cooperate everyone demand, and when driving, can produce bad posture and uncomfortable sensation, or easily cause the injury of motion.3, the multi-functional demand of user can't be adapted to, and its value added can not be further improved again.Can't cooperate the demand that drives the people for above-mentioned ordinary bicycle handle, can not adjust the many disadvantages of angle arbitrarily, be to be badly in need of people to carry out improved.

The purpose of this utility model provides a kind of stem of angle adjustable, mainly is the purpose that reaches the angle that can adjust stem, and in addition, this stem is easily manufactured, assembling is easy.

The utility model is realized by following manner: the stem of angle adjustable includes leader's standpipe, a pivoted body, a standpipe, and an end of described stem has an articulated section, is provided with the elongated slot and the prominent latch of establishing of perforation along the articulated section outer ring surface; Described pivoted body is to be hubbed at above-mentioned articulated section, and this pivoted body is provided with radially lockhole; Described standpipe is established a socket end, have the lockhole of a lockhole at this socket end corresponding to above-mentioned pivoted body, and be equipped with and join latch and above-mentioned latch is meshing, the lockhole that penetrates above-mentioned pivoted body and above-mentioned standpipe with an overbolt in regular turn is to link above-mentioned stem and above-mentioned standpipe.The overbolt that gets loose, can make stem with articulated section with elongated slot along the swing downward or upward of turning, swing to required angle and latch with join latch meshing after, lock overbolt again, to reach the relative angle of adjustment stem and standpipe.

Be elaborated below in conjunction with accompanying drawing.

Fig. 1 is the three-dimensional exploded view of the stem of angle adjustable

Fig. 2 is the sectional view of the stem of angle adjustable

Fig. 3 is the action scheme drawing of the stem of angle adjustable

Fig. 4 is the stem figure of known bicycle

Fig. 5 is the stem figure of another kind of known bicycle

As shown in Figure 1 and Figure 2, the stem of angle adjustable comprises leader's standpipe 30, this stem 30 has the beam ring 31 of a C kenel, this beam ring 31 is provided with the opening 32 that compresses usefulness for bolt 33, the other end then forms the articulated section 34 of a ring-type, the latch 35, one of offering an elongated slot that runs through 341 and being equipped with arrangement along the outside anchor ring of this articulated section 34 have be lockhole 361 radially turn 36, be to be hubbed in the articulated section 34 of stem 30.

One standpipe 40, its front end is that the socket end 41 and the other end of corresponding above-mentioned articulated section 34 forms a diagonal plane 42, along center shaft and establish a lockhole that runs through 43 corresponding to turning 36 lockhole 361, socket end 41 is to cooperate the shape of above-mentioned stem 30 articulated sections 34 and the cambered surface 44 that forms a depression, joins the latch 35 of latch 45 corresponding to stem 30 articulated sections 34 along what cambered surface 44 also was provided with arrangement; One overbolt 50 penetrates the lockhole 43 of standpipe 40 and outstanding standpipe 40 1 segment length with the clamp holder 52 with diagonal plane 53 that is spirally connected, the diagonal plane 53 of this clamp holder 52 and diagonal plane 42 corresponding the closing of standpipe 40 ends from 36 the lockhole 361 of turning of stem 30.

Standpipe 40 of the present utility model is the usefulness for the front fork that inserts bicycle, when screwing overbolt 50, clamp holder 52 can advance along overbolt 50, and its diagonal plane 53 can up move and surpass diagonal plane 42 along the diagonal plane 42 of standpipe 40 ends, thereby compress the tube wall of front fork, firmly to link with front fork; The handle of bicycle then penetrates the beam ring 31 of stem 30, and locks with bolt 33; And in the time of above-mentioned adjustment overbolt 50, the articulated section 34 of stem 30 also can be with the rotation of overbolt 50 and socket end 41 relative the compressing of standpipe 40, because the articulated section 34 of stem 30 is respectively equipped with latch 35 and joins latch 45 with the socket end 41 of standpipe 40, therefore the strength that compresses is cooresponding big and can be with stem 30 and the very firm binding of standpipe 40.

As shown in Figure 3, when the volt elevation angle of adjusting handle is spent, as long as earlier overbolt 50 is got loose, with stem 30 with turn 36 be rotating shaft and along the articulated section 34 elongated slot 341 swing, the latch 35 that makes stem 30 again and standpipe 40 join that latch 45 is meshing to become required angle.Then lock overbolt 50, stem 30 can so just reach the purpose at the volt elevation angle of adjusting handle with above-mentioned very firm combining with standpipe 40.

Fig. 4 is a kind of stem of known bicycle, and stem 10 2 ends of this bicycle have the handle T-Ring 11 that is used for the socket handle respectively, and is used for the front fork sleeve pipe 12 of socket front fork.Fig. 5 is the stem of another kind of known bicycle, and the end away from handle T-Ring 21 of the stem 20 of this bicycle welds an extension bar 22, and in order to the front fork of grafting bicycle, and handle T-Ring 21 is used for the socket handle.It is the angle that any stem all becomes to fix with the front fork of bicycle.The utility model is compared with technique known has following advantage: 1, the utility model can be adjusted the handle angle, to be fit to the demand that difference drives the people, reaches the comfortable requirement that drives.2, simple structure of the present utility model, be easy to manufacture; And it is quite simple and quick to adjust the required step in the handle volt elevation angle, drives the people and can do it yourself to adjust very convenient.3, because the handle adjustable angle, thereby improve the value added of bicycle relatively, further improve the image of its product.

In sum, the utility model can provide the comfortable posture that drives that drives the people, and easy to use, designs simplification and can cost-cutting.

Claims

1, a kind of stem of angle adjustable is characterized in that: this device includes leader's standpipe, a pivoted body, a standpipe, and an end of described stem has an articulated section, is provided with the elongated slot and the prominent latch of establishing of perforation along the articulated section outer ring surface; Described pivoted body is to be hubbed at above-mentioned articulated section, and this pivoted body is provided with radially lockhole; Described standpipe is established a socket end, have the lockhole of a lockhole at this socket end corresponding to above-mentioned pivoted body, and be equipped with and join latch and above-mentioned latch is meshing, the lockhole that penetrates above-mentioned pivoted body and above-mentioned standpipe with an overbolt in regular turn is to link above-mentioned stem and above-mentioned standpipe.