CN2270680Y - Adjustable handle-bar stem for bicycle - Google Patents

Abstract

The utility model provides an adjustable vertical rod for a bicycle head. The utility model is characterized in that both sides of a shaft journal part on the top end of the vertical rod of the bicycle head are respectively provided with a concave hole in a concave way, and an engaging ring is arranged in each concave hole. A plurality of convex clamping teeth are arranged on end surfaces on both sides of the engaging ring in an annular way. Besides, when a connecting sleeve which is divided into two symmetrical components is fixedly locked on a vertical rod body, the connecting sleeve contacts with the clamping teeth. When a locking assembly is penetrated through the vertical rod, the engaging ring and the connecting sleeve and locking actions are carried out, and the clamping teeth of the engaging ring can be inlaid in the vertical rod and the connecting sleeve to prompt the good combining effect of the vertical rod, the engaging ring and the connecting sleeve. Adjusting actions are very easy after the locking assembly is loosened and released.

Description

The first montant of adjustable car

The utility model relates to a kind of attachments of a bicycle structure, relates in particular to the first montant of a kind of adjustable car.

Traditional bicycle handle design is that a montant bottom is located in vehicle head tube inside, and affixed with the front fork top, uses the bolting element locking positioning again, and the location that locked is again then directly passed for handgrip in the montant top; Can in time adjust the extension elongation of montant according to the difference of rider's build like this, to reach the purpose of adjusting the handgrip height.But, the montant of this structure only can be done upper and lower adjustment, can not satisfy all bicycle riders because of being accustomed to the different different demands that produced, required as the part rider is that handgrip can in time be done upper and lower and the bevelled adjustment, and the montant of said structure can't satisfy all customers' needs.

For this reason, someone improves the montant structure, as its application number of Chinese Taibei is the montant structure that 78203910 utility model application case discloses a kind of angle adjustable, it is that vertical tube 1 top convexes with a shaft seat 1a before one, offer a groove 2a at a pipe link 2 one ends, respectively form an auricle 2b in groove 2a both sides, after making groove 2a be set on the shaft seat 1a, pass pipe link 2 and shaft seat 1a with a quick detach device 3, and assembled locking, then be horizontally set with a perforation 2c at pipe link 2 other ends, perforation 2c one side is provided with and is through to an exterior breach 2d, in order to a screw 4 is passed breach 2d, and can produce the effect of tightening to the handgrip that is located in the perforation 2c in good time.Really, the montant of this structure can utilize the pine oil of quick detach device 3, thereby reaches the purpose of adjusting pipe link 2 and handgrip angle, still, still has following weak point when reality is used:

One, when quick detach device 3 passes the auricle 2b of pipe link 2 and shaft seat 1a, the press power that 3 couples of auricle 2b of quick detach device produce relatively can make auricle 2b produce the counteragent that expands outwardly, and the shortcoming that will cause pipe link 2 to be not easy to lock.

Two, because only reserving to adjust, perforation 2c side tightens degree and the breach 2d of usefulness, when changing handgrip, then originally be assemblied in the accessory on the handgrip, as the handgrip that brakes, bandage, handlebar grips cover, bicycle bell ... all must dismantle Deng spare part, and after new hand finishes changing the outfit, these spare parts must be assemblied on the handgrip again one by one, and therefore quite trouble is gone up in operation.

The purpose of this utility model is to provide a kind of improved adjustable car first montant, locks easily and is convenient to when it can impel montant and handgrip to link and adjust and change the outfit.

The purpose of this utility model is achieved in that the first montant of a kind of adjustable car, it is to be pivoted with one on a montant top to connect cover, montant both sides and connect and respectively be provided with an interlock ring between the cover, can fix connecing cover locking with a locked assembly, and can wear the location for handgrip connecing the cover end, its characteristics are that described montant is to make with aluminum alloy materials, the top is provided with a pivot portion, and each forms the shrinkage pool with appropriate depth axle pivot portion both sides; Described two interlock rings are the hollow ring round, are equipped with most latches that are convex shape on the end face of both sides, can be installed in the shrinkage pool of pivot portion, and an end face that wherein is close to montant is trapped in the shrinkage pool the inside of montant; The described cover that connects is that one first block and one second block by the shape symmetry constitutes, this is first years old, one end of two blocks is equipped with one first, two articulated sections, the medial surface of this articulated section is close on the latch of interlock ring lateral surface, utilize the locked assembly can be firmly with first, two articulated section pivot knots are in the axle pivot portion on montant top, this is first years old, the other end of two blocks respectively is provided with one of semicircular in shape first, two fit grooves, this is first years old, the central axis of two fit grooves and this first, the central axis of two articulated sections is parallel, and first, two articulated sections and first, form one first between the two fit grooves, two binding faces, this is first years old, two binding faces are to be to turn round the curved surface that turn 90 degrees, impel this first, two binding faces are formed at first, one first of two fit groove inboards, two front-end edges and this first, two binding faces are formed at first, one first of inboard, two articulated sections, two end edges are square crossing mutually.Therefore, when locked assembly was locked, two plates of connecting rod can be oppressed towards body of rod direction, and the latch that makes the interlock ring embeds on the body of rod and the plate, impel the body of rod and connecting rod to reach fixedly purpose, and first and second fit groove is involutory is arranged in wherein for handgrip, utilizes locking element to be locked again; Otherwise, lock member is unscrewed a little, and during with the locking element pine oil, first and second block one end can lock member be that center of turn is relatively outwards outwarded winding, first and second fit groove is separated be open shape, can be convenient to replace handgrip.

The utility model is because be provided with between montant and handgrip and connect cover and be connected, make it make and fit on quite easy; Simultaneously owing to the interlock ring is set in montant axle pivot portion both sides, and it is folded between the axle pivot portion of first and second articulated section that connects cover and montant, the latch of interlock ring be embedded in first and second articulated section and the axle pivot portion and produce firm combination, and the repetitiousness use also can not influence between member in conjunction with effect; Once more, owing to utilize lock member first and second articulated section cramping to be fixed in the axle pivot portion of montant, the pressure that first and second articulated section is born spreads equably and is distributed on first and second binding face, not only locking easily, and the power effect that can not be locked of first and second block and produce the counteragent that expands outwardly, can guarantee firm combination; In addition, lock element owing to be provided with, when desire is changed handgrip, lock member need only be unscrewed slightly, and locking element is screwed out fully, can make that this first and second block is a center of turn with the central axis of first and second articulated section, do rightabout rotation, and make the separated attitude of first and second fit groove, handgrip just can take out easily and replace, and need not dismantle the accessory that originally was assemblied on the handgrip, operate quite simple.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof:

Fig. 1 is the structural representation of the first montant of prior art car;

Fig. 2 is the three-dimensional exploded view according to the first montant of adjustable car that the utility model proposes;

Fig. 3 is the solid combination scheme drawing of Fig. 2;

Fig. 4 is the montant of the above-mentioned preferred embodiment of the utility model and connects cover combination scheme drawing;

Fig. 5 be the above-mentioned preferred embodiment of the utility model connect the cover generalized section.

Describe details and service condition thereof in detail below in conjunction with accompanying drawing, therefrom also can find out other purpose, feature and advantage of the present utility model according to the concrete device of the preferred embodiment that the utility model proposes.

See also Fig. 2, the first montant of the adjustable car of the utility model embodiment includes substantially: a montant 10, two interlock rings 20, connect members such as cover 30, one handgrip 40 (seeing also Fig. 3), two lock members 50 and two locking elements 60.Wherein:

Described montant 10 is elongated rod shape made from aluminum alloy materials, and its top is the curved arc shape, and forms a pivot portion 11, and each forms the shrinkage pool 12 with certain depth these pivot portion 11 both sides, and 11 in-to-ins, one perforation 13 of axle pivot portion connects to shrinkage pool 12.

Described interlock ring 20 is the hollow ring round, and central authorities are provided with a circular hole 21, is equipped with most latches 24 that are convex shape on the both sides end face 22,23, and an end face 22 that wherein is close to montant 10 is trapped in shrinkage pool 12 the insides of montant 10.

The described cover 30 that connects is that one first block 31 by the shape symmetry docks assembly with one second block 32 and forms.One end of described first and second block 31,32 is equipped with first and second articulated section 311,321, these first and second 311,321 inside, articulated section are provided with a hole 311a, 321a again, the circular hole 21, the perforation that utilize lock member 50 to pass first and second articulated section 311,321 and interlock ring 20 engage with a cap body 51 after 13 again, impel connect cover 30 be can be suitably rotationally the pivot knot in a pivot portion 11 on montant 10 tops.This shows that when interlock ring 20 was folded between the axle pivot portion 11 of first and second pivoting part 311,321 and montant 10, it was interior and produce firm combination to make the latch 24 of interlock ring 20 be embedded in first and second articulated section 311,321 and axle pivot portion 11.Described first, two blocks 31,32 the other end then is provided with one first of semicircular in shape, two fit grooves 312,322, this is first years old, two fit grooves 312,322 axis L 1 with this first, two articulated sections 311,321 axis L 2 is parallel, and first, two articulated sections 311,321 and first, two fit grooves 312, form one first between 322, two binding faces 313,323, this is first years old, two binding faces 313, the 323rd, by first, two articulated sections 311,321 towards first, two fit grooves 312, during 322 extensions, constitute to turn round the curved surface that turn 90 degrees, make this first, two binding faces 313,323 are formed at first, two fit grooves 312, first of 322 inboards, two front-end edges 314,324 with this first, two binding faces 313,323 are formed at first, two articulated sections 311, first of 321 inboards, two end edges 315,325 are the square crossing kenel; In addition, these first and second fit groove 312,322 bilateral symmetry positions respectively are provided with a screw 316 and a conjugate foramen 326, can penetrate and spiral shell is located in the screw 316 from conjugate foramen 326 for two locking elements 60, it is affixed to impel first and second block 31,32 other ends that connect cover 30 to obtain, and handgrip 40 is positioned in one, the two fit grooves 312,322 (as shown in Figure 3).This shows, when in the axle pivot portion 11 that first and second articulated section 311,321 crampings is fixed on montant 10 with lock member 50, first and second articulated section 311,321 pressure that born spread equably and are distributed in first and second binding face 313, on 323, not only locking easily, and the power effect that can not be locked of first and second block 31,32 and produce the counteragent that expands outwardly, can guarantee firm combination.

See also Fig. 3 and Fig. 4, when desire is assembled, earlier interlock ring 20 is inserted in the shrinkage pool 12 of montant 10, to connect first of cover 30 again, two blocks 31,32 first, two articulated sections 311,321 medial surfaces paste respectively and touch on the outside of this interlock ring 20 end face 23, make first, two binding faces 313,323 are relative status, simultaneously, make handgrip 40 be located at first, two fit grooves 312, between 322, then lock member 50 can be passed and connect cover 30, interlock ring 20 and montant 10, again cap body 51 is locked, impel first, two blocks 31,32 first, two articulated sections 311,321 are subjected to the effect of cramping outside to inside, and make the both ends of the surface 22 of interlock ring 20,23 latch is embedded in montant 10 shrinkage pools 12 the insides respectively and connects cover 30 first, two articulated sections 311, on 321 medial surfaces, and the interlocking that relies on this latch 24, can make first, two articulated sections 311,321 obtain firm combining with 11 in axle pivot portion, and have and prevent the effect of rotating; And when again locking element 60 being penetrated conjugate foramen 326 and spiral shell and be located in the screw 316, can make to connect a end that cover 30 first and second blocks 31,32 are provided with first and second fit groove 312,322 and obtain affixedly, and handgrip 40 be produced fixations.

Referring to Fig. 3 and Fig. 5, when montant 10, interlock ring 20, when connecing cover 30 and members such as handgrip 40 and being combined into one, these first and second binding face 313,323 any antimeres all are mutual symmetry status.

When desire is adjusted handgrip 40 whole heights and angle, lock member 50 can be unscrewed slightly, impel this first and second articulated section 311,321 to separate with axle pivot portion 11 respectively, and latch 24 does not also have card to first and second articulated section 311,321 and ends effect, so just, the relative angle that connects between cover 30 integral body and the montant 10 can be adjusted, the height of handgrip 40 can be adjusted, behind the adjustment location, again lock member 50 and cap body 51 are screwed, can reach fixedly purpose.

When desire is adjusted the height of handgrip 40, can unscrew locking element 60, impel first and second fit groove 312,322 separated, handgrip 40 can freely rotate in first and second fit groove 312,322 that has separated, and can tune to required angle, again locking element 50 is locked.

When desire is changed handgrip 40, be at lock member 50 under the state of not locking, two locking elements 60 are screwed out in conjugate foramen 326 fully, impel first, two blocks 31,32 set first, two fit grooves 312, an end of 322 can be the action that the center of turn work is relatively outwards outwarded winding with lock member 50, make first, two fit grooves 312,322 separation are open state, just can take out handgrip 40 easily, handgrip after changing is placed in first again, two fit grooves 312, in 322, and, can reach the purpose of replacing handgrip 40 with locking element 60 and lock member 50 lockings.

The above only is of the present utility model one preferable possible embodiments, and the equivalent structure of being done so use the utility model specification sheets and claims scope such as changes, and ought to be included in the scope of patent protection of the present utility model.

Claims (1)

1. the first montant of adjustable car comprises a montant, it is characterized in that:

One montant (10), it is to make with aluminum alloy materials, and the top is provided with a pivot portion (11), and each forms the shrinkage pool (12) with appropriate depth axle pivot portion (11) both sides; In addition, also comprise:

Two interlock rings (20), it is the hollow ring round, is equipped with most gears (24) that are convex shape on the end face of both sides, and an end face that wherein is close to montant (10) is trapped in the shrinkage pool the inside of montant (10);

One connects cover, it is made of with one second block (32) one first block (31) of shape symmetry, described first, two blocks (31,32) a end is equipped with one first, two articulated sections (311,321), utilize lock member (50) its pivot can be tied in the axle pivot portion (11) on montant (10) top, described first, two blocks (31,32) the other end respectively is provided with semicircular in shape, wear one first of location for handgrip, two fit grooves (312,322), this is first years old, two fit grooves (312,322) central axis (L1) with this first, two articulated sections (311,321) central axis (L2) is parallel, and first, two articulated sections (311,321) with first, two fit grooves (312,322) form one first between, two binding faces (313,323), this is first years old, two binding faces (313,323) be to be to turn round the curved surface that turn 90 degrees, impel this first, two binding faces (313,323) be formed at first, two fit grooves (312,322) one first of the inboard, two front-end edges (314,324) with this first, two binding faces (313,323) be formed at first, two articulated sections (311,321) one first of the inboard, two end edges (315,325) are square crossing mutually.

Images