CN100396550C

CN100396550C - Folding handle-bar stem of bicycle

Info

Publication number: CN100396550C
Application number: CNB2006100504672A
Authority: CN
Inventors: 王欢
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-21
Filing date: 2006-04-21
Publication date: 2008-06-25
Anticipated expiration: 2026-04-21
Also published as: CN1836967A

Abstract

The present invention relates to a folding steering head for bicycles. A shaft sleeve and a rotating shaft which is contained in a sleeve barrel of a front support frame are arranged in the front support frame. One end of the rotating shaft is arranged in the shaft sleeve, and the other end of the rotating shaft is fixedly connected with a rotating handle of the steering head. A push rod which is sheathed with a spring is contained in a containing cavity which is composed of the outer flange of the rotating handle of the steering head or a fixed bolt which is connected to the bottom of the outer flange. The head part of the push rod can be matched with a first spacing hole which is arranged along a horizontal direction and a second spacing hole which is arranged along a vertical and downward direction on the sleeve barrel of the front support frame. The tail end of the push rod is fixedly connected with a threaded rod which is arranged on a steering head tube. The inner wall of the front end of the steering head tube is glidingly connected with the surface of the outer flange of the rotating handle of the steering head. The folding steering head for bicycles has the advantages of simple structure, precise positioning of the folding steering head and no influence to the braking function of the bicycle, and is convenient and quick when the bicycle is ridden and the steering head needs to be unfolded.

Description

Folding handle-bar stem of bicycle

Technical field

The present invention relates to a kind of tap of bicycle, especially a kind of Foldable bicycle tap.

Background technology

Chinese patent CN200420020195.8 discloses " a kind of handle-bar folding device " its left side, right handgrip respectively with a left side, right sleeve is affixed, a left side, right sleeve all is inserted in the vehicle frame pipe, in the vehicle frame pipe locating piece is set, the locating piece middle part is provided with guide rod and positioning tube, be with spring on the guide rod in the positioning tube, sliding part, retainer, be nested with button on the retainer, sliding part links to each other with engagement device, the vehicle frame pipe, left sleeve, right sleeve, all have notch on the positioning tube, the notch that engagement device passes on the positioning tube can snap in the vehicle frame pipe by the retainer effect, left sleeve, in the notch of right sleeve, with left sleeve, right sleeve and vehicle frame pipe are fixed together, although this patent is by being provided with retracing spring, sliding part, retainer and button thereof, technical characterictics such as notch are set on the positioning tube, can allow left and right handles folding and be fixed together with the vehicle frame pipe, but this utility model complex structure, inconvenience during use, and influence the brake function of bicycle.

Summary of the invention

The purpose of this invention is to provide a kind of folding handle-bar stem of bicycle that is applicable to ordinary bicycle and Folding Bicycle.

Technical scheme of the present invention is achieved in that

A kind of folding handle-bar stem of bicycle is provided, rotating shaft by faucet that is provided with on front frame, the front frame and faucet constitutes, and it is characterized in that: an axle sleeve is arranged in the front frame, and one is placed in the interior rotating shaft of sleeve of front frame, rotating shaft one end places in the axle sleeve, and the rotating shaft other end and leading handler are affixed; Rotating shaft is center rotation around the shaft under leading handler effect, and it is folding to be convenient to tap; In the outward flange of tap handler or the cavity volume that the bonded assembly bolt of rear end plate is constituted bottom outward flange, the push rod of spring that has been equipped with a socket, the push rod head can be with first spacing hole of along continuous straight runs setting on the sleeve of front frame, match along second spacing hole of vertical downward direction setting, the push rod tail end is affixed with the screw rod that is arranged on the faucet, the outer flange surface sliding block joint of faucet front inner wall and leading handler.

Said structure can be used for bicycle about on the tap, about the symmetrical configuration setting of tap.

During folding handle-bar stem, for example use the tap in left side, referring to structure shown in accompanying drawing 1 or the accompanying drawing 2, the pulling faucet, then by faucet, screw rod on the faucet, the common movably assembly of forming of push rod, under external force, outer flange surface along leading handler outwards stretches, and compression places the outward flange of leading handler, the perhaps spring in the cavity volume that is constituted by outward flange bottom bonded assembly bolt of rear end plate, make the push rod apical head break away from first spacing hole gradually, when the stroke that draws faucet made the push rod apical head reach rotatable minimum radius, rotary faucet pipe and assembly thereof drove connected leading handler immediately, the rotation an angle of 90 degrees, unclamp faucet, the push rod top enters second spacing hole, at this moment, faucet and front frame are superimposed again, and reach the purpose of folding bicycle tap; When needs launched tap, contrary above-mentioned action can be finished.

Aforesaid folding handle-bar stem of bicycle is characterized in that: described push rod is provided with projection and cooperates with spring.

Aforesaid folding handle-bar stem of bicycle is characterized in that: be connected with faucet handles on the described faucet.

Aforesaid folding handle-bar stem of bicycle is characterized in that: described rotating shaft embeds in the leading handler, and perhaps rotating shaft and leading handler are connected as a single entity.

Of the present invention simple in structure, convenient and swift when cycling need launch tap, safe and reliable, when bicycle did not use, the folding handle-bar stem location was accurate, and it is little to take up room, and does not influence the brake function of bicycle.

Description of drawings

Fig. 1 is that push rod head of the present invention cooperates the part-structure scheme drawing after putting in place with first spacing hole.

Fig. 2 is that the folding 90 degree backs of Fig. 1 are parallel with support and cooperate part-structure scheme drawing after putting in place with second spacing hole.

Fig. 3 is the cross-sectional view figure of faucet shown in Figure 1 and leading handler connecting bridge.

The specific embodiment

Below in conjunction with the description of drawings embodiments of the invention:

See also accompanying drawing 1 to accompanying drawing 3: provide a kind of folding handle-bar stem of bicycle, constitute by the faucet 1 that is provided with on front frame 10, the front frame 10 and the rotating shaft 7 of faucet 1, one axle sleeve 13 is arranged in the front frame 10, be placed in the rotating shaft 7 in the sleeve 6 of front frame 10, rotating shaft 7 one ends place in the axle sleeve 13, and rotating shaft 7 other ends and leading handler 5 are affixed; Rotating shaft 7 is 7 center rotation around the shaft under leading handler 5 effects, and it is folding to be convenient to tap; The outward flange 9 of tap handler 5 or connect in the cavity volume that is constituted with bolt of rear end plate by the bottom of outward flange 9, the push rod 3 of spring 4 that has been equipped with a socket, the head of push rod 3 can be with first spacing hole 11 of along continuous straight runs setting on the sleeve 6 of front frame 10, match along second spacing hole 12 of vertical downward direction setting, the tail end of push rod 3 is affixed with the screw rod 2 that is arranged on the faucet 1, the outward flange 9 surperficial sliding block joints of faucet 1 front end and leading handler 5, the surface engagement of being convenient to the inwall of faucet 1 and outward flange 9 work that reversed afterwards.

Aforesaid folding handle-bar stem of bicycle, described push rod 3 are provided with projection and cooperate with spring 4.

Aforesaid folding handle-bar stem of bicycle is connected with faucet handles 8 on the described faucet 1, and faucet handles 8 can be selected the rotary brake handle handle configurations, does not influence function of the present invention.

Aforesaid folding handle-bar stem of bicycle, described rotating shaft 7 embeds in the leading handler 5, and perhaps rotating shaft 7 is connected as a single entity with leading handler 5.

As shown in Figure 3, on described sleeve 6 sidewalls spacing hoodle 14 can be set.

Each parts of the present invention all can adopt metallic material or alloy material to make.

Claims

1. folding handle-bar stem of bicycle, rotating shaft by faucet that is provided with on front frame, the front frame and faucet constitutes, and it is characterized in that: an axle sleeve is arranged in the front frame, and one is placed in the interior rotating shaft of sleeve of front frame, rotating shaft one end places in the axle sleeve, and the rotating shaft other end and leading handler are affixed; Rotating shaft is center rotation around the shaft under leading handler effect, and it is folding to be convenient to tap; In the outward flange of tap handler or the cavity volume that the bonded assembly bolt of rear end plate is constituted bottom outward flange, the push rod of spring that has been equipped with a socket, the push rod head can be with first spacing hole of along continuous straight runs setting on the sleeve of front frame, match along second spacing hole of vertical downward direction setting, the push rod tail end is affixed with the screw rod that is arranged on the faucet, the outer flange surface sliding block joint of faucet front inner wall and leading handler.

2. folding handle-bar stem of bicycle as claimed in claim 1 is characterized in that: described push rod is provided with projection and cooperates with spring.

3. folding handle-bar stem of bicycle as claimed in claim 1 is characterized in that: be connected with faucet handles on the described faucet.

4. folding handle-bar stem of bicycle as claimed in claim 1 is characterized in that: described rotating shaft embeds in the leading handler, and perhaps rotating shaft and leading handler are connected as a single entity.