CN103303416A

CN103303416A - Folding bicycle

Info

Publication number: CN103303416A
Application number: CN 201310225553
Authority: CN
Inventors: 蒲振光
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-07
Filing date: 2013-06-07
Publication date: 2013-09-18

Abstract

The invention discloses a folding bicycle which is characterized in that all parts of a bicycle frame are folded or unfolded in one step in a fan-shaped folding way, folding actions are automatically coherent by co-movement of all the parts in the folding process, the bicycle is automatically locked after being folded or unfolded, a rear wheel bar of the bicycle frame can automatically rotate to an angle vertical to a plane of the bicycle frame in the folding process, a front fork and a steering bar are also automatically folded and then stored in the bicycle frame in the folding process; and the front and rear wheels are enabled to be parallel and coaxial at the same time. The whole operation process is simple and quick; the space volume is small after the bicycle is folded, so that the bicycle can be held up and dragged to move; and the unfolding process is a reverse operation of the folding process, the bicycle is unfolded in one step, and the unfolding state of the bicycle is automatically locked.

Description

A kind of folding bicycle

Technical field

The invention belongs to folding bicycle.

Background technology

Present folding bicycle, car load folding and all need to launch several steps actions just can finish, jackknife action does not link up, and folding and launch all to need manual locking, thereby makes folding and launch more loaded down with trivial details.

Summary of the invention

Technical matters to be solved by this invention is at the above-mentioned state of the art, propose a kind of fan-fold configuration and realize that a step is folding, one step launched, and this structure adopts the linkage between the member to realize that a step folds and a step is launched action, and automatically locks after folding and launching.

The present invention adopts fan-fold configuration, main body of vehicle frame is divided into preceding thick stick, front fork, trailing wheel thick stick, seat thick stick, T shape arm, oblique tie-bar, turns to thick stick, rotary joint, each parts interconnects by hinged respectively, the galianconism of T shape arm is as the folding center of fan-fold configuration, before thick stick, seat thick stick, trailing wheel thick stick, rotary joint with T shape arm as being fixedly hinged a little, and keep interaction relation each other.Each parts draws in and expansion at same fan-shaped plan around the center of folding when folding and launching, owing to keep linkage between each parts, only need apply the folding and expansion that power just can be finished vehicle frame to the seat thick stick.

The front-wheel of bicycle and trailing wheel are on the same plane upon deployment, and according to then needing to make the two-wheeled axle center concentric after the fan-folded, two-wheeled is parallel to be drawn close.For this reason, in folding process that front-wheel steering 90 degree are vertical with the false plane of car, the trailing wheel thick stick then rotates 90 degree with trailing wheel thick stick itself automatically under the interlock effect of oblique tie-bar and sliding sleeve, and folding like this gathering back realization two-wheeled is parallel with one heart.

For cycle frame is automatically locked after expansion, and vehicle frame is adjusted locking state automatically and is out of shape the structural relaxation that causes to adapt to vehicle frame when riding in the process of riding, settling the automatic lock in the present thick stick and be placed between the lock core on the rotary joint can automatic aligning, constitute a kind of latch-up structure between the conical suface of the lock core of spherical and automatic lock inwall and the lock tube, when causing lock core to move owing to the vehicle frame distortion, lock tube can compensate under the promotion of spring tension that lock core moves and the gap that occurs, thereby makes vehicle frame keep locking state always.

After making bicycle folding, automatically lock, the seat thick stick pin jointed end have a boss and the left locking block that is installed on the T shape arm to constitute locking relation, the pin jointed end of rotary joint also has a boss and the right locking block that is installed on the T shape arm to constitute locking relation simultaneously, and the squeese pressure that left locking block and right locking block are subjected to a leaf spring is in the state of keeping above-mentioned locking relation always.When launching bicycle, press the button button of withholding above left locking block and right locking block, two locking blocks move inwardly, have so just removed the lock-out state behind the bicycle folding.

In order conveniently to mention after folding and to draw; be provided with the hole at T shape arm and seat thick stick, the folding process finger is put into the hole on the thick stick, points in the protection folding process not to be squeezed; in the hole on the folding back finger insertion T shape arm, can mention bicycle like this and haul bicycle walking.

The present invention is in order to reduce the action in the folding process, taken full advantage of the linkage between the parts, utilize the action of folding handles thick stick to finish release to whole vehicle frame, this process only need be stirred the safety pin that turns to thick stick, while swing handle thick stick, just can spur connection main lock lock tube and turn to the steel rope of articulated body sliding pin, thereby remove the locking of vehicle frame and the positioning relation in the articulated body simultaneously.

For occupation space size after making bicycle folding littler, the weight-bearing surface of seat cushion will change the state parallel with the seat thick stick under the gravity effect at cushion self after folding, make more compact structure behind the bicycle folding, and after bicycle launches, the weight-bearing surface of cushion can be automatically changeb to state parallel to the ground under the gravity effect of cushion self, the people just can be sitting on the cushion and ride like this.

Description of drawings

Fig. 1 is the complete deployed condition outside drawing of bicycle;

Fig. 2 is the complete folded state outside drawing of bicycle;

Folding center scheme drawing when Fig. 3 is the complete deployed condition of bicycle;

Fig. 4 is handle thick stick release vehicle frame scheme drawing;

Fig. 5 finishes for bicycle and automatically locks scheme drawing after folding;

Fig. 6 is the articulated body generalized section;

Exploded perspective view when Fig. 7 launches for articulated body;

Scheme drawing when Fig. 8 folds for articulated body;

Generalized section when Fig. 9 is main the locking;

Figure 10 scheme drawing when to be the cushion weight-bearing surface parallel with the seat thick stick;

Scheme drawing when Figure 11 is in riding condition for cushion;

Scheme drawing when Figure 12 is in riding condition for the handle thick stick;

Figure 13 is the rotary joint structural representation.

The specific embodiment

Be further described below in conjunction with the present invention of accompanying drawing embodiment.

As shown in figure 1 to figure 13, seat thick stick (1), trailing wheel thick stick (2), preceding thick stick (3), T shape arm (4), front fork (6), turn to thick stick (5), handle thick stick (8), tiltedly tie-bar (12) and rotary joint (24) are connected same plane formation cycle frame in order in hinged way, and each parts is that galianconism with T shape arm (4) is hinged center, be fan shape, hinged center is the fan-shaped center of circle, each parts all is to turn to folding and deployed condition on same plane around hinged center when folding and launching, when each parts rotates around hinged center, trailing wheel thick stick (2) can be the revolution action that axis of revolution is made 90 degree with rotary joint (24) also, and this action is to be realized by the interlock between trailing wheel thick stick (2) and each parts.

Bicycle is to realize like this by deployed condition to folded state, people's left hand is held handle thick stick (8) middle part, the left hand thumb is stirred the safety pin (18) that turns to thick stick (5) to go up locked hand thick stick (8) simultaneously, owing to captive joint between handle thick stick (8) and the axis of revolution (31), axis of revolution (31) can rotate in the upper end that turns to thick stick (5), and release steel rope (39) is anchored on the axis of revolution (31), will spur release steel rope (39) when swing handle thick stick (8), the other end of release steel rope is fixed on the frog (40), analyzer (40) is connecting steel rope (37) and steel rope (38) simultaneously, steel rope (37) is connecting the lock tube (49) of automatic lock (14), steel rope (38) is connecting the slide bar (45) in the articulated body (7), so swing handle thick stick (8) pulling release steel rope (39) just equals to have spurred lock tube (49) and slide bar (45), so cycle frame just is in lax released state, behind left hand swing handle thick stick (8), turn to thick stick (5) to the vertical surface of front-wheel (19) with the vehicle frame plane again, and the opening surface of articulated body (7) is towards the hinged center of vehicle frame, at this moment the right hand is held position of opening on the thick stick (1) with anticlockwise direction rotation seat thick stick (1), the seat thick stick (1) with preceding thick stick (3) between be that flexible connection body (9) is connected, so do not influence the rotation of a thick stick (1), and preceding thick stick (3) and turning to fall down under the effect that thick stick (5) can be at self gravitation after articulated body (7) unlocks, make and turn to thick stick (5) and front fork (6) to locate to realize doubling at articulated body (7), when seat thick stick (1) in Qian Gang (3), turn to thick stick (5), continue to rotate counterclockwise these parts and T shape arm (4) under the interlock effect of front fork (6) and flexible connection body (9) when getting together, the right hand leaves a thick stick (1), the hand hole held on the T shape arm (4) of the right hand is up carried then, so T shape arm (4) and trailing wheel thick stick (2) close up under the effect of self gravitation, because oblique tie-bar (12) articulated T shape arm (4) and sliding sleeve (13), oblique tie-bar (12) can push away the past lower slider of the sliding sleeve (13) that is enclosed within on the trailing wheel thick stick (2) in the process so close up, when the inclined-plane of sliding sleeve (13) lower end will force the trailing wheel thick stick to rotate centered by rotary joint (24) with guide finger (34) on the trailing wheel thick stick (2) when contacting, along with T shape arm (4) is brought together into parallel position with trailing wheel thick stick (2), wheel (20) plane of trailing wheel thick stick (2) also turns to the state vertical with the vehicle frame plane, realizes that thus the wheel face of front and back wheel is parallel.In addition, after seat thick stick (1) is rotating counterclockwise down, can under the effect of cushion (22) self gravitation, skid off a thick stick (1) with the sliding pin (53) that supports cushion (22), simultaneously because the small rod (16) on the hinged present thick stick (1) hauls cushion support body (15), so changed the angle of cushion (22) weight-bearing surface with seat thick stick (1), till sliding pin (53) stops to slide, and cushion (22) weight-bearing surface will be parallel with seat thick stick (1) this moment.Each parts folds when putting in place, the boss of seat thick stick (1) pin jointed end will be turned right and be pushed the left locking block (23) that is contained on the T shape arm (4), after boss is crossed flex point on the left locking block (23), left side locking block (23) blocks boss on the thick stick (1) in resilience under the effect of leaf spring (36), thereby realize the locking of seat thick stick (1), simultaneously, boss on the rotary joint (24) also can be turned left and be pushed the right locking block (54) that is contained on the T shape arm (4), after crossing boss on the rotary joint (24) and crossing flex point on the right locking block (54), right locking block (54) blocks boss on the rotary joint (24) in resilience under the effect of leaf spring, thereby realize the locking of trailing wheel thick stick (2), at this moment, the form that seat thick stick (1) and trailing wheel thick stick (2) formation are filled the span of a man's arms is with front fork (6), T shape arm (4), turn to thick stick (5), tiltedly tie-bar (12) is filled the span of a man's arms, so realized automatically locking of bicycle folding afer bay.

Bicycle is to realize like this by folded state to deployed condition, the left hand thumb is pressed and is separated snap close (17), removed the lock-out state of seat thick stick (1) and trailing wheel thick stick (2) simultaneously, the hand hole that the while right hand is held on the thick stick (1) clockwise rotates a thick stick (1) centered by hinged center, because seat thick stick (1), soft connector (9), preceding thick stick (3), turn to thick stick (5), front fork (6), T shape arm (4), oblique tie-bar (12), be hinged between sliding sleeve (13) and the rotary joint (24), so each parts also will be followed the rotation of a thick stick (1) and be launched, such as, oblique tie-bar (12) hauls sliding sleeve (13) and goes up sliding along trailing wheel thick stick (2), inclined-plane in the last process of sliding on the sliding sleeve (13) contacts with the locating dowel pin (33) on the trailing wheel thick stick (2), guiding trailing wheel thick stick (2) turns to sprocket wheel (10) plane and the parallel plane position of vehicle frame, simultaneously sliding sleeve (13) also can slip in the draw-in groove on the rotary joint (24) stuckly, and the locating dowel pin (33) on the trailing wheel thick stick (2) is stuck in also will the draw-in groove on sliding sleeve (13).After trailing wheel thick stick (2) clockwise rotates and puts in place, cambered surface lock core (32) will insert automatic lock (14) the inside, hold the middle part of handle thick stick (8) this moment with left hand, right handgrip is sat thick stick (1) and is pressed down, make vehicle frame be in tensioning state, left hand turns to thick stick (5) to make front-wheel (19) wheel face and vehicle frame plane at grade, simultaneously handle thick stick (8) wraparound rotating shaft (31) is turned to horizontality, handle thick stick (8) turns in the process of level will discharge lock tube (49) and slide bar (45) by release steel rope (39), lock tube (49) pushes the purpose that cambered surface lock core (32) is realized the locking vehicle frame under the effect of spring (51), slide bar (45) then slips into down articulated (41), make hinged and rigid body of articulated body (7) formation up and down, make T shape arm (4), preceding thick stick (3), front fork (6), turn to thick stick (5) to form a stable triangle.Handle thick stick (8) is when turning to horizontal surface, because handle thick stick (8) is inclined design with safety pin (18) contact position, this inclined-plane will guide safety pin (18) to enter jack on the handle thick stick (8), thus the locking of realization handle thick stick (8).Seat thick stick (1) clockwise rotates to be crossed vertical with horizontal surface the time, sliding pin (53) will be at the effect of cushion (22) the self gravitation thick stick (1) of taking a seat that glides, when seat thick stick (1) is rotated further automatic lock (14) and rotary joint (24) when contacting, cushion (22) weight-bearing surface is parallel with horizontal surface.

After bicycle launches, be fixed on the automatic lock of sitting on the thick stick (1) (14) and will contact cooperation with rotary joint (24), and bear and sit whole load that thick stick (1) transmits, and flexible connection body (9) only plays the effect between Connection Block thick stick (1) He Qiangang (3) in the bicycle expansion process, does not bear the power on the present thick stick (1) of load effect in the process of riding.

Trailing wheel (20) wheel face and vehicle frame plane parallel degree when further adjusting the bicycle deployed condition, the both sides of going up draw-in groove at rotary joint (24) are provided with set screw (26), can revise the rotational angle of trailing wheel thick stick (2) when launching, reach the purpose of adjusting trailing wheel (20) wheel face and vehicle frame plane parallel degree.

Claims

1. folding bicycle, at grade, front fork (6), trailing wheel thick stick (2), T shape arm (4), seat thick stick (1), preceding thick stick (3), turn to thick stick (5), oblique tie-bar (12), rotary joint (24), flexible connection body (9), articulated body (7), automatic lock (14), sliding sleeve (13), steel rope (37) is docile and obedient order with handle thick stick (8) and is connected, it is characterized in that: handle thick stick (8) links to each other with steel rope (37), and steel rope (37) links to each other with automatic lock (14), and preceding thick stick (3) one ends and T shape arm (4) are hinged, the other end with turn to thick stick (5) hinged, seat thick stick (1) is hinged with T type arm (4), and rotary joint (24) is hinged with T type arm (4), tiltedly tie-bar (12) hinged T type arm (4) and sliding sleeve (13), sliding sleeve (13) guiding trailing wheel thick stick (2) when trailing wheel thick stick (2) slides rotates at rotary joint (24), thick stick (3) and seat thick stick (1) before flexible connection body (9) connects, articulated body (7) connection turns to thick stick (5) and front fork (6) and rotates synchronously, comprises slide bar (45) in the articulated body (7).

2. folding bicycle according to claim 1, it is characterized in that: handle thick stick (8) is positioned at by rotating shaft (31) and turns on the thick stick (5), latch (18) is arranged simultaneously with handle thick stick (8) and turn between the thick stick (5) fixing, an end that is anchored steel rope (39) is gone up in rotating shaft (31), simultaneously, steel rope (39) is in rotating shaft (31), the other end connects frog (40), frog (40) connects lock tube (49) by steel rope (37), and frog (40) connects slide bar (45) by steel rope (38).

3. folding bicycle according to claim 1, it is characterized in that: trailing wheel thick stick (2) one ends are positioned on the rotary joint (24), and trailing wheel thick stick (2) is at sliding sleeve (13) directed 90 degree that rotate of wraparound trochanter (24) under the guiding on inclined-plane, two ends up and down, the lower end of rotary joint (24) is provided with positioning groove, slide on the sliding sleeve (13) with rotary joint (24) and snap in when contacting in the positioning groove of rotary joint (24), the upper end of sliding sleeve (13) also is provided with positioning groove, and this positioning groove contacts with locating dowel pin (33) on the trailing wheel thick stick (2).

4. folding bicycle according to claim 1, it is characterized in that: the fixing present thick stick (1) of slide (52) upper end, connecting rod (16) one ends are hinged on the cutter thick stick (7), the other end is hinged on the cushion support body (15), cushion support body (15) is hinged with free axis (53), under the bicycle deployed condition, free axis (53) is at the gravity effect of cushion (22) thick stick (1) of taking a seat that glides, under the bicycle folding state, free axis (53) skids off a thick stick (1) under the gravity effect of cushion (22).

5. folding bicycle according to claim 1, it is characterized in that: go up articulated (48) and be connected with turning to thick stick (5), following articulated (41) is connected with front fork (6), locating dowel pin (43) is fixed on the slide bar (45), slide bar (45) slides in last articulated (48) endoporus, and by pin rod (44) limit slippage stroke, under the bicycle deployed condition, last articulated (48) and following articulated (41) be alignment with one heart, spring (46) promotes slide bar (45) and stretches into down articulated (41), simultaneously, king pin (43) also enters down the positioning groove of articulated (41).

6. folding bicycle according to claim 1, it is characterized in that: lock core (32) is hinged on the rotary joint (24), on the fixing present thick stick (1) of automatic lock (14), steel rope (37) links to each other with lock tube (49), lock tube (49) is in automatic lock (14) slides within, lock core (32) contacts with lock tube (49), tightens spring (51) promotion lock tube (49) and makes lock core (49) keep dynamicpositioning.