JP2010247614A - Bicycle stand - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bicycle stand which improves stability when a bicycle is left standing. <P>SOLUTION: The stand 1 includes: a connecting seat 10; a rotating mechanism 20; a spring 30; a cushion 31; a parking rod 40; a connecting rod 50; and a transmission device 60. The connecting seat 10, which is used for the connection to a frame, has a body 11 and a pair of first connecting ear parts 12 formed protrusively from the one side of the body 11. The body 11 has two connecting holes 111 at a portion near the top on each of four peripheral surfaces. Thus, applicable connecting holes 111 can be selected according to the demand of the frame and the connecting seat 10 can be connected to the frame of a bicycle with bolts corresponding to the number of the connecting holes 111. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an apparatus used to support a bicycle on the ground, and more particularly to a bicycle stand.

  When the bicycle is parked, the bicycle is stabilized on the ground by the support of the stand attached to the frame. The present stand has a coupling seat used for coupling with the frame, and a bicycle parking rod connected to the coupling seat so as to be able to reciprocate between a stand position and a folding position. When viewed from the side of the bicycle, the parking rack is perpendicular to the ground when placed in the support position and parallel to the ground when placed in the folded position. When the parking rack is placed in the support position, the free end of the parking rack, the front wheel and the rear wheel of the bicycle are in contact with the ground at the same time, so that the bicycle has three contact points with the ground and can stand on the ground. Is possible.

  The stability of a bicycle parked on the ground is determined by the following two factors.

  One is that three contact points where the bicycle contacts the ground are connected by straight lines, and if three straight lines are formed, a triangular plane is formed on the ground. The greater the area of the triangular plane, the higher the stability of keeping the bicycle on the ground. Since the distance between the front and rear wheels of the bicycle is constant, the distance between the straight line formed by the contact point between the stand parking and the ground and the contact point between the front and rear wheels of the bicycle and the ground. The longer the right-angle distance is, the more stable the bicycle will be on the ground. In order to achieve that purpose, the only way is to increase the angle between the axis of the parking rack and the left / right center plane of the bicycle frame. The left / right center plane is a temporary plane composed of the front end center and the rear end center of the bicycle frame.

  The other is that commercially available bicycle stands are divided into two types: side stands and center stands. Since the side stand is attached to the intersection of the rear upper hawk and rear lower hawk of the bicycle frame, the three contact points between the bicycle and the ground constitute an unequal triangular plane on the ground and keep the bicycle upright The stability of time will be reduced. Since the center stand is mounted from the rear lower fork of the bicycle frame to a position close to the BB shell or below the BB shell, the three contact points between the bicycle and the ground are close to an isosceles triangle plane or an isosceles triangle. Configure the plane and improve the stability when standing the bicycle.

  Therefore, by using a center stand and increasing the angle between the center axis of the parking rack and the left / right center plane of the bicycle frame, it is possible to increase the stability when standing the bicycle. is there.

  However, when the angle between the axis of the bicycle parking rod and the left / right center plane of the bicycle frame increases, the bicycle parking rod is placed on the BB shell of the frame when it is placed in the folded position. A phenomenon occurs that it interferes with the rotation path or collides with the bicycle chain. In order to avoid this phenomenon, the commercially available stand attached to the BB shell of the frame is limited to a certain angle between the axis of the parking rack and the left / right center plane of the frame. Therefore, a bicycle equipped with such a stand does not have high stability when parked. Some vendors have adopted a method of lowering the position of the stand to avoid the above-mentioned interference or collision phenomenon, but this method is running because the distance between the stand and the ground is too short. A bicycle crashes into road equipment or obstacles on the ground, causing a safety problem.

  The main object of the present invention is to provide a stand for solving the above-mentioned problems. The stand according to the present invention gradually reduces the angle between the parking rack and the left / right center plane of the bicycle frame when the parking rack is rotated from the support position to the folding position. When reaching the tatami position, it is possible to reduce the angle between the parking rack and the center plane to an angle that does not interfere with the rotation path of the bicycle crank. Conversely, when rotating the parking rack from the folded position to the support position, gradually increase the angle with the center plane, and when the parking rack reaches the support position, adjust the angle between the center plane and the bicycle. It can be increased to an angle that can be stabilized on the ground.

  In order to achieve the above-mentioned object, the stand according to the present invention is mounted on a bicycle frame, and a left / right center plane is defined by a front end center and a rear end center of the frame. The stand according to the present invention includes a connecting seat, a rotating mechanism, at least one bicycle parking rod, a connecting rod and a transmission device. The coupling seat is used for coupling with the frame. The rotation mechanism is connected to the coupling seat and can reciprocate between the first position and the second position along the first rotation direction in the coupling seat. The parking bicycle is attached to the rotation mechanism and can reciprocate between the third position and the fourth position with respect to the rotation mechanism along the second rotation direction. The connecting rod is attached to the connecting seat. The transmission mechanism is mounted between the parking rod and the connecting rod, and when the rotating mechanism rotates from the first position to the second position, the parking rod can be rotated synchronously from the third position to the fourth position. It is. The angle formed by the axis and the left / right center plane of the frame when the parking rack is placed in the third position is the left / right of the axis and frame when the parking pole is installed in the fourth position. Greater than the angle constructed from the right center plane.

  With the configuration described above, when the stand rotation mechanism and the parking rack are separately installed in the second position and the fourth position (that is, in the folding position of the parking rack), the axis of the parking rack and the frame Since the angle between the left and right center planes of the bicycle is relatively small, the bicycle parking rod does not interfere with the rotation path of the bicycle crank. When the rotation mechanism and the parking rack are installed separately at the first position and the third position (ie, installed at the support position of the parking rack), the axis of the parking rack and the left / right center plane of the frame Since the angle between them is relatively large, it is possible to stably stand the bicycle on the ground.

It is a schematic diagram which shows the external appearance of the stand by 1st embodiment of this invention. It is an exploded view of the components of the stand shown in FIG. FIG. 3 is a three-dimensional view of a part of the stand shown in FIG. 1. FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. It is sectional drawing which shows another state of the stand shown in FIG. 1 by the same method as the display method of FIG. FIG. 2 is a side view showing a state in which the stand shown in FIG. 1 is connected to a bicycle frame, and a parking rack is placed at a support position. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. It is a bottom view which shows the state which the stand shown in FIG. 1 and the flame | frame of a bicycle were connected, and the bicycle parking rod was installed in the folding position. It is a schematic diagram which shows the state with which the stand shown in FIG. 1 and the flame | frame of another bicycle were connected. It is a schematic diagram which shows the external appearance of the stand by 2nd embodiment of this invention. FIG. 11 is a side view showing a state in which the stand shown in FIG. 10 and the bicycle frame are connected and the parking rack is placed at the support position. FIG. 12 is a cross-sectional view taken along line 12-12 of FIG. FIG. 11 is a bottom view showing a state in which the stand shown in FIG. 10 is connected to a bicycle frame, and a bicycle parking rack is placed in a folded position. It is a front view of the stand by 3rd embodiment of this invention. It is a schematic diagram which shows another state of the stand shown in FIG. It is a front view of the stand by 4th embodiment of this invention. It is a schematic diagram which shows another state of the stand shown in FIG.

  In order to describe the structure of the present invention in detail, the description will proceed based on the following embodiments and drawings.

(First embodiment)
FIG. 1 is a schematic view showing the appearance of a stand 1 according to the first embodiment of the present invention. 2 to 4 are schematic views showing the detailed structure of the stand 1.

  The stand 1 according to the first embodiment of the present invention employs a center stand in order to achieve a good support effect. That is, the stand 1 is attached to a portion near the BB shell on the bottom of the bicycle frame. In particular, it is relatively preferable to mount the stand 1 below the BB shell. Further, in order to meet the demand for weight reduction and strength of the bicycle, the main parts of the stand 1 are made of a lightweight aluminum alloy.

  As shown in FIG. 1, the stand 1 according to the present invention includes a connecting seat 10, a rotating mechanism 20, a spring 30, a cushion 31 (shown in FIGS. 2 and 4), a parking rod 40, a connecting rod 50, and a transmission device 60. Is provided.

As shown in FIG. 2, the coupling seat 10 is used for coupling with a frame, and includes a main body 11 and a pair of first connection ears 12 formed to protrude from one side of the main body 11. The main body 11 has two connection holes 111 at portions close to the tops on the four peripheral surfaces. Therefore, it is possible to select the corresponding connecting hole 111 according to the demand of the frame, and connect the connecting seat 10 to the bicycle frame by bolts corresponding to the number of the connecting holes 111.

  As shown in FIGS. 1 to 3, the main body 11 has a spring chamber 112 used for accommodating the spring 30 and the cushion 31 therein. A detailed description of the spring 30 and the cushion 31 will be given later. The spring chamber 112 has an opening 113 at the bottom of the main body 11. The main body 11 has a pair of second connection ears 114 located on both sides of the opening 113 at the bottom. Since the pair of second connection ears 114 is used for connection with the rotation mechanism 20, the connection shaft holes 115 corresponding to each other are separately provided. In addition, the pair of second connection ears 114 separately have depression fixing grooves 116 at positions corresponding to each other on the bottom. The depression fixing groove 116 is used for fixing the washer 13 disposed on the pair of second connection ears 114. A detailed description of the structure of the washer 13 will be given later. A pair of 1st connection ear | edge part 12 has the connection shaft hole 121 used for a connection with the connection rod 50 in the position corresponding to each other separately. A detailed description of the connecting rod 50 will be given later.

  As shown in FIGS. 1, 2, and 4, the rotation mechanism 20 has a first connection seat 21 and a second connection seat 22. The first connection seat 21 has a first connection shaft hole 211 penetrating both side surfaces from the side, and the first connection shaft hole 211 is fitted into the connection shaft holes 115 of the pair of second connection ears 114. Since it is used for penetration of one connection shaft 14, the rotation mechanism 20 is connected to the coupling seat 10 and can rotate along the first rotation direction V (shown in FIG. 1) around the first connection shaft 14. is there. The first connection seat 21 has a slightly vertical first braking surface 212 and a second braking surface 213. When the rotation mechanism 20 rotates from the second position to the first position with respect to the coupling seat 10, and when the rotation mechanism 20 rotates from the first position to the second position, the first braking surface 212 and the second braking surface 213 are The two end faces 117 and 118 of the opposite sides of the opening 113 at the bottom of the main body 11 face each other separately. The first connection seat 21 has an annular projecting portion 214, the annular projecting portion 214 has an annular projecting surface 215, and both ends of the annular projecting surface 215 are separately connected to the first braking surface 212 and the second braking surface 213. Is done. The annular projecting surface 215 is positioned at the opening of the main body 11 and fixes the rotating mechanism 20 at the first position and the second position when the spring 30 and the cushion 31 accommodated in the spring chamber 112 operate corresponding to each other. Therefore, in order to rotate the rotation mechanism 20 from the first position to the second position or from the second position to the first position, it is necessary to apply an external force that can overcome the elasticity of the spring 30 to the rotation mechanism 20. is there. A detailed description of the relative operation of the annular projecting surface 215, the spring 30 and the cushion 31 will be given later. The second connection seat 22 has a second connection shaft hole 221 used for connection with the parking rack 40. A detailed description of the bicycle parking 40 will be given later.

  As shown in FIGS. 1 and 2, the pair of washers 13 is made of a wear-resistant plastic material and has a connecting hole 131 and a protruding fixing portion 132. The pair of washers 13 are connected by the first connection shaft 14 to portions near the bottoms on the two outer walls of the pair of second connection ears 114, and the protruding fixing part 132 of the washer 13 is fitted in the depression fixing groove 116. Therefore, it is possible to prevent the position movement between the two washers 13 and the second connection ear 114 from occurring. A detailed description of the operation of the washer 13 will be given later.

  As shown in FIGS. 2 and 4, the spring 30 and the cushion 31 are accommodated in the spring chamber 112. Both ends of the cushion 31 abut against one end of the spring 30 and the annular projecting surface 215 separately. The cushion 31 is made of an abrasion-resistant plastic material, and is an intermediate material when the spring 30 contacts the rotation mechanism 20. That is, the spring 30 gives elasticity to the annular projecting surface 215 by the cushion 31.

  As shown in FIGS. 4 and 5, in the process in which the rotation mechanism 20 is rotated from the first position to the second position or from the second position to the first position by the annular protrusion 214, the annular protrusion surface 215 and the cushion 31 The contact point changes continuously. That is, in the process of the rotation mechanism 20 rotating from the first position to the second position or from the second position to the first position, the contact point between the annular projecting surface 215 and the cushion 31 is a position close to the center of the first connection shaft 14. From the center of the first connection shaft 14 to a position far from the center of the first connection shaft 14. For this reason, in order to rotate the rotation mechanism 20 from the first position to the second position, or from the second position to the first position, an external force capable of overcoming the elasticity of the spring 30 is applied to the annular protrusion 241 of the rotation mechanism 20. There is a need.

  As shown in FIGS. 1 and 2, the parking rack 40 has a casing 41 and a cap 42. In order to meet light weight considerations and strength requirements, the housing 41 employs a design with an L-shaped cross section. Since the housing 41 has a connection shaft hole 411 at one end, and the connection shaft hole 411 is used to penetrate the second connection shaft 23 fitted in the second connection shaft hole 221, the housing 41 has the rotation mechanism 20. The second connection seat 22 is connected. Therefore, the housing 41 is not only capable of rotating along the first rotation direction V around the first connection shaft 14 with the rotation mechanism 20, but also the second connection shaft (as shown in FIG. 1). It is also possible to rotate between the third position and the fourth position with respect to the rotation mechanism along the second rotation direction H around 23. In the present embodiment, the second rotation direction H is substantially perpendicular to the first rotation direction V. Since the cap 42 is a part used for contact between the parking rack 40 and the ground, it is made of a wear-resistant plastic material and is attached to the other end of the casing 41 by a screw 421.

  The connecting rod 50 has connection shaft holes 51 and 52 separately at both ends. One of the connection shaft holes 51 is used for penetrating the connection shaft 53 fitted in the connection shaft hole 121 of the pair of first connection ears 12, so that the connecting rod 50 is connected to the pair of first connection ears 12. And a rotation parallel to the first rotation direction V can be performed in the coupling seat 10.

  The transmission mechanism 60 has an intermediate connection seat 61 and a connecting rod 62. The intermediate connection seat 61 has a pair of connection ears 611 and a connection column 612, and the pair of connection ears 611 separately have connection shaft holes 613 at positions corresponding to each other. The center lines of the two connection shaft holes 613 are perpendicular to the connection columns 612. The intermediate connecting seat 61 is connected onto the connecting rod 50 by a connecting shaft 63 that passes through another connecting shaft hole 52 of the connecting rod 50 and is fitted into the connecting shaft hole 613. The connecting column 612 is used for connecting to the connecting rod 62, and a detailed description thereof will be described below.

  The connecting rod 62 has connection shaft holes 621 and 622 separately at both ends. One of the connection shaft holes 622 is fitted into the connection column 612 of the intermediate connection seat 61, so that the connecting rod 62 is connected to the intermediate connection seat 61. Another connecting shaft hole 621 is used to penetrate the connecting shaft 43 attached to the housing 41, so that the connecting rod 62 is connected to the bicycle parking rod 40.

  The above is a detailed description of the structure of the stand 1 according to the first embodiment of the present invention. Hereinafter, description will be given of the operation method and principle of the stand 1.

As shown in FIGS. 4 and 5, the parking rack 40 of the stand 1 reciprocates between the support position and the folding position with respect to the connecting seat 10. That is, when the first braking surface 212 of the rotation mechanism 20 abuts against the end surface 117 on one side of the opening 112 at the bottom of the main body 11, the rotation mechanism 20 is placed at the first position. When the second braking surface 213 of the rotation mechanism 20 abuts against the other end surface 118 of the opening 112 at the bottom of the main body 11, the rotation mechanism 20 is placed at the second position.
Since the parking rack 40 is connected to the rotation mechanism 20 by the second connecting shaft 23, when the rotation mechanism 20 reciprocates between the first position and the second position, the parking rack 40 accompanies the rotation mechanism 20. Rotate. One end of the connecting rod 50 is connected to the connecting seat 10, and the other end is connected to the bicycle parking rod 40 by the intermediate connecting seat 61 and the connecting rod 62, so that the rotation mechanism 20 moves between the first position and the second position. When reciprocatingly rotating, the connecting rod 50 rotates with the rotation mechanism 20.

The horizontal distance dx and the vertical distance dy are set between the center of the first connecting shaft 14 that connects the rotating mechanism 20 and the connecting seat 10 and the center of the connecting shaft that connects the connecting rod 50 and the first connecting ear 12. Therefore, in the process in which the rotation mechanism 20 rotates from the first position to the second position, an orientation difference Dm is generated between the bicycle parking rod 40 and the connecting rod 50. The azimuth difference Dm varies with the rotation angle of the rotation mechanism 20, and is calculated based on the following formula.
Dm = dxcon 閘 + dysin 閘 In the above formula, 閘 is the rotation angle of the rotation mechanism. When rotating the bicycle parking rod 40 and the connecting rod 50 synchronously, an azimuth difference Dm is generated. Therefore, the connecting rod 62 interlocks the bicycle parking rod 40 to cause rotation in the second rotation direction H. That is, when the rotation mechanism 20 is rotated from the first position to the second position, the parking rod 40 is rotated from the third position far from the connecting rod 50 to the fourth position close to the connecting rod 50 by driving the connecting rod 62. . When the rotation mechanism 20 is installed at the first position, the parking rack 40 is set at the third position, that is, the support position of the parking rack 40. When the rotation mechanism 20 is installed at the second position, the parking rack 40 is set at the fourth position, that is, the folding position of the parking rack 40.

  To rotate the rotation mechanism 20 from the first position to the second position or from the second position to the first position when the rotation mechanism 20 is placed at the first position or the second position, the annular protrusion of the rotation mechanism 20 Since it is necessary to apply an external force that can overcome the elasticity of the spring 30 to 214, the parking rack 40 can be fixed to the support position or the folding position.

  As shown in FIGS. 6 to 8, the operation of the stand 1 according to the first embodiment attached to the frame 70 of the bicycle 2 will be described.

  As shown in FIG. 6, the stand 1 is attached to the frame 70 by two bolts 3 and a connecting hole 111 on the main body 11. Since the stand 1 is a center stand, it is mounted on the lower side facing the BB shell on the frame 70.

  When viewed from the side surface of the frame 70, when the parking rack 40 is placed at the support position, it is in a state of being nearly perpendicular to the ground. When the parking rack 40 is placed in the folding position, it is in a state of being nearly parallel to the ground.

  As shown in FIG. 7, when viewed from the front of the frame 70, when the parking rack 40 is placed in the support position, the left / right center plane of the frame (the center of the front end of the frame 70 of the bicycle 2 and the left / right center plane) Since the angle between the temporary plane (P) composed of the rear end center) P is relatively large, the contact point between the parking rack 40 and the ground and the contact points between the front wheel 71 and the rear wheel 72 of the bicycle 2 and the ground The area of the triangular plane formed above increases, and the stability when the bicycle 2 is stopped on the ground is increased.

  As shown in FIG. 8, when viewed from the bottom of the frame 70, the angle between the left / right center planes P of the frame is small when the parking rack 40 is placed in the folded position. It is possible to avoid the rotation path of the crank attached to the BB shell of the frame 70 or the chain of the bicycle 2 so as not to interfere with the rotation of the crank or the chain.

  FIG. 9 shows a state where the stand 1 is attached to the frame 4 of the folding bicycle. After the frame 4 is folded, the washer 13 attached to the bottom of the coupling seat 10 contacts the ground together with the front wheels 5 and the rear wheels 6 arranged in parallel, so that the bicycle can be stabilized on the ground. It is.

  The above is the description of the first embodiment of the present invention. Hereinafter, another embodiment will be described based on the spirit of the present invention.

(Second embodiment)
FIG. 10 shows a stand 8 according to the second embodiment of the present invention. Differences from the first embodiment are as follows. The stand 8 has two bicycle parking rods 40a and 40b and two connecting rods 62a and 62b. The two bicycle parking rods 40 a and 40 b are simultaneously connected to the rotation mechanism 20 by the second connection shaft 23. One end of the two connecting rods 62a and 62b is separately connected to the two parking rods 40a and 40b, and the other end is simultaneously connected to the intermediate connecting seat 61.

  FIG. 11 is a side view showing a state in which the stand 5 according to the second embodiment of the present invention is mounted on the frame of the bicycle 2 and the parking racks 40a and 40b are set at the support positions. For the purpose of explanation, FIG. 12 is a cross-sectional view taken along line 12-12 in FIG. As shown in FIG. 12, when the two parking racks 40a and 40b are placed in the support position, a relatively large angle is generated between them. That is, since the angle between the parking racks 40a and 40b and the left / right center plane P of the frame is relatively large, the stability when the bicycle 2 is stopped on the ground is increased.

  FIG. 13 shows a state where the two bicycle parking rods 40 a and 40 b viewed from the bottom of the frame 70 are placed in the folded position. Since the angle between the two parking rods 40a, 40b is small, that is, the angle between the bicycle parking rods 40a, 40b and the left / right central plane P of the frame is small, the bicycle parking rods 40a, 40b It is possible to avoid the crank rotation path or bicycle chain mounted on the BB shell and not interfere with the crank or chain rotation.

(Third embodiment)
FIG. 14 shows a stand 9 according to the third embodiment of the present invention. Differences from the second embodiment are as follows. The transmission device 80 of the stand 9 is attached to a connecting seat 81 connected to the connecting rod 50, two housings 82 fixed on the connecting seat 81 at a predetermined angle, and two free ends of the two housings 82. It is composed of a pair of rollers 83 and a torque spring 84 mounted between the bicycle parking rods 40a and 40b. The two sets of rollers 83 are positioned outside the two parking racks 40a and 40b.

  When the two parking rods 40a and 40b are placed in the support position, a relatively large angle is generated between them by the thrust of the spring 84.

  As shown in FIG. 15, when the two bicycle parking rods 40a and 40b are rotated from the support position to the folding position, an azimuth difference is generated between the connecting rod 50 and the two bicycle parking rods 40a and 40b. The pair of rollers 83 gradually move to the free ends of the two bicycle parking rods 40a and 40b, and at the same time press the two bicycle parking rods 40a and 40b to overcome the elasticity of the spring 84, thereby The angle between the ridges 40a and 40b is gradually reduced.

(Fourth embodiment)
FIG. 16 shows a stand 7 according to a fourth embodiment of the present invention. Differences from the third embodiment are as follows. The two parking racks 45 of the stand 7 have guide grooves 451 separately.

  The transmission device 90 of the stand 7 is fixed to a connection seat 91 connected to the connection rod 50, two housings 92 fixed on the connection seat 91 at a predetermined angle, and free ends of the two housings 92. It consists of two protruding columns 93. The two protruding pillars 93 are positioned in the guide grooves of the two parking racks 45.

  When the two parking racks 45 are placed in the support position, a relatively large angle is generated between them by the thrust of the two protruding columns 93.

  As shown in FIG. 17, when the two parking rods 45 are rotated from the support position to the folded position, an orientation difference is generated between the connecting rod 50 and the two parking rods 45. Gradually moves to the free ends of the two parking rods 45 in the two guide grooves 451, and at the same time presses the two parking rods 45 closer to each other so that the angle between the two parking rods 45 is increased. Decrease gradually.

  Since the above-mentioned stand is only four embodiments based on the scope of the present invention, it is within the scope of the present invention to change the structure or replace parts without departing from the spirit of the present invention. is there.

1: stand, 2: bicycle, 3: bolt, 4: frame, 5: front wheel, 6: rear wheel, 7: stand, 8: stand, 9: stand, 10: connecting seat, 11: main body, 12: first Connection ear, 13: Washer, 14: First connection shaft, 20: Rotating mechanism, 21, First connection seat, 22: Second connection seat, 23: Second connection shaft, 30: Spring, 31: Cushion, 40 : Bicycle parking rod, 40a: bicycle parking rod, 40b: bicycle parking rod, 41: housing, 42: cap, 43: connecting shaft, 45: bicycle parking rod, 50: connecting rod, 51: connecting shaft hole, 52: Connection shaft hole, 53: Connection shaft, 60: Transmission device, 61: Intermediate connection seat, 62: Connection rod, 62a: Connection rod, 62b: Connection rod, 70: Frame, 80: Transmission device, 81: Connection seat, 82 : Housing, 83: Roller, 84: Torque spring, 90: Transmission device, 91: Contact Seat: 92: housing, 93: projecting column, 111: connecting hole, 112: spring chamber, 113: opening, 114: second connection ear, 115: connection shaft hole, 116: recessed fixing groove, 117: end face , 118: end surface, 121: connection shaft hole, 131: coupling hole, 132: protrusion fixing portion, 211: first connection shaft hole, 212, first braking surface, 213: second braking surface, 214: annular protrusion, 215: annular projecting surface, 221: second connection shaft hole, 411: connection shaft hole, 421: screw, 451: guide groove, 611: connection ear, 612: connection column, 613: connection shaft hole, 621: connection shaft Hole, 622: connecting shaft hole, dx: horizontal distance, dy: vertical distance, Dm: orientation difference, P: left / right center plane of the frame

Claims (20)

A bicycle stand mounted on a bicycle frame and having a left-right central plane defined by the frame,
A coupling seat used for coupling with the frame;
A rotation mechanism connected to the coupling seat and capable of reciprocating between the first position and the second position along the first rotation direction in the coupling seat;
At least one parking rod attached to the rotation mechanism and capable of reciprocating between a third position and a fourth position with respect to the rotation mechanism along a second rotation direction;
The connecting rod mounted on the connecting seat;
The bicycle parking rod is mounted between the bicycle parking rod and the coupling rod, and the bicycle parking rod is synchronized from the third position to the fourth position when the rotation mechanism rotates from the first position to the second position in the previous period. The angle formed by the shaft center line and the left and right center plane of the frame when the bicycle parking rod is set at the third position is allowed to rotate at the fourth position. A transmission mechanism that is larger than an angle formed by an axial center line and a left and right central plane of the frame when installed;
A bicycle stand characterized by comprising:   The bicycle stand according to claim 1, wherein the first rotation direction is perpendicular to the second rotation direction.   The bicycle stand according to claim 1, wherein the connecting rod is capable of rotating in the connecting seat in parallel with the first rotation direction.   The connecting seat has a spring chamber therein, the spring chamber has an opening located at the bottom of the connecting seat, the rotating mechanism has an annular protrusion, and the annular protrusion is an annular protrusion. The annular projecting surface is positioned at the opening of the coupling seat, the stand further includes a spring and a cushion accommodated in the spring chamber, and two end surfaces of the cushion are one end of the spring and an annular shape. In order to rotate the rolling mechanism from the first position to the second position, or from the second position to the first position, the spring is applied to the annular projecting portion. The bicycle stand according to claim 1, wherein an external force that can be overcome is required.   The rotating mechanism has a first braking surface and a second braking surface, and when the rotating mechanism rotates from the first position to the second position with respect to the coupling seat, and the rotating mechanism is in the second position. 5. The bicycle according to claim 4, wherein when rotating from the first position to the first position, the first braking surface and the second braking surface abut against the opposite end surfaces of the opening at the bottom of the coupling seat separately. Stand.   The bicycle stand according to claim 5, wherein the first braking surface is perpendicular to the second braking surface.   The bicycle stand according to claim 5, wherein both ends of the annular projecting surface are separately connected to the first braking surface and the second braking surface.   In the process in which the rotation mechanism rotates from the first position to the second position, or from the second position to the first position, the relative position of the cushion and the annular protrusion is determined by the rotation of the rotation mechanism. The bicycle stand according to claim 4, wherein the bicycle stand shifts from a position close to the center to a position far from the rotation center of the rotation mechanism, and then shifts again to a position close to the rotation center of the rotation mechanism.   The transmission has an intermediate connecting seat and a connecting rod, the intermediate connecting seat is connected to the connecting rod, and both ends of the connecting rod are separately connected to the intermediate connecting seat and the bicycle parking rod. The bicycle stand according to claim 1, characterized in that:   The bicycle stand according to claim 9, wherein the connecting shaft of the intermediate connecting seat and the connecting rod is perpendicular to the connecting shaft of the intermediate connecting seat and the connecting rod.   The intermediate connection seat has a pair of connection ears and a connection column, the pair of connection ears separately have connection shaft holes at positions corresponding to each other, and the two connection shaft holes are the connection shafts. 11. The bicycle stand according to claim 10, wherein the bicycle is connected to the connecting rod by connecting to the connecting rod, the center line is perpendicular to the connecting column, and the connecting column is used to connect to the connecting rod. .   The bicycle stand further includes a pair of washers that are attached to two corresponding positions on the bottom of the coupling seat, and after the frame of the folding bicycle to which the stand is attached is folded, The bicycle stand according to claim 1, wherein the washer contacts the ground together with the front and rear wheels of the bicycle arranged in parallel, so that the bicycle can be stabilized on the ground.   The connecting seat has separately recessed fixing grooves at two locations corresponding to each other on the bottom, the pair of washers separately has protruding fixing portions, and the protruding fixing portions of the two washers 13. The bicycle stand according to claim 12, wherein the bicycle stand is fitted into the recessed fixing groove, so that the positional movement between the pair of washers and the coupling seat cannot be generated.   The coupling seat has a main body and a first connection ear formed to protrude from one side of the main body, the main body has a pair of second connection ears at the bottom, and the spring chamber is formed of the main body. Positioned inside, the body has an opening in the bottom, the pair of second connection ears are positioned on both sides of the opening, the rotating mechanism is connected to the second connection ear, The bicycle stand according to claim 4, wherein the connecting rod is connected to the first connection ear.   The pair of second connection ears have recessed fixing grooves at positions corresponding to each other at the bottom, the stand further has a pair of washers separately having protruding fixing parts, and the pair of washers Since it is mounted on the second connection ear and the protruding fixing portion is separately fitted into the two recessed fixing grooves, it is possible to prevent the position movement between the washer and the connection ear. The bicycle stand according to claim 14.   The rotating mechanism has a first connection seat and a second connection seat, and is separately connected to the coupling seat and the bicycle parking bracket by the first connection seat and the second connection seat, The bicycle stand according to claim 6, wherein the first braking surface and the second braking surface are positioned on the first connection seat.   The bicycle stand has two parking rods, the transmission device has two connecting rods, the two connecting rods are connected to the rotating mechanism, and the two connecting rods have two ends. Since the bicycle is separately connected to the bicycle parking rod and the other end is connected to the connecting column of the intermediate connection seat at the same time, when the rotating mechanism rotates from the first position to the second position, The bicycle stand according to claim 11, wherein the two bicycle racks can be synchronously rotated from the third position to the fourth position.   The bicycle stand has two bicycle parking rods, and the transmission device includes the connection seat connected to the connecting rod, the two housings fixed on the connection seat at a predetermined angle, two It consists of two sets of rollers mounted on the free end of the chassis and a torque spring mounted between the two parking racks, and the two sets of rollers are positioned outside the two parking racks. When the rotation mechanism rotates from the first position to the second position, the two sets of the rollers gradually move to the free ends of the two parking bicycles, and at the same time the two parking bicycles 2. The bicycle according to claim 1, wherein the two bicycle parking rods can be rotated from the third position to the fourth position by overcoming the elasticity of the spring and approaching each other. stand.   The bicycle stand has two bicycle parking rods, the two bicycle parking rods have separate guide grooves, and the transmission device is connected to the connecting rod at a predetermined angle. It is composed of two casings fixed on a seat and two protruding columns fixed to two casings, and the two protruding columns are separately positioned in the two guiding grooves, When the rotation mechanism rotates from the first position to the second position, the two protruding columns gradually move to the free ends of the two parking bicycles in the two guide grooves and at the same time, 2. The bicycle according to claim 1, wherein the two bicycle parking rods can be rotated from the third position to the fourth position by pressing the bicycle parking rods close to each other. Stand. A coupling seat used for coupling with the bicycle frame;
The rotating mechanism connected to the connecting seat and capable of rotating in the vertical direction with respect to the connecting seat;
It is connected to the rotation mechanism and not only can be rotated in the vertical direction with respect to the coupling seat in association with the rotation mechanism, but also can be rotated in the horizontal direction with respect to the rotation mechanism. One of the bicycle parking boxes,
A connecting rod connected to the connecting seat and capable of vertical rotation with respect to the connecting seat;
When the bicycle parking rod is mounted between the bicycle parking rod and the connecting rod and the bicycle parking rod rotates in the vertical direction with respect to the connection seat along with the rotation mechanism, the bicycle parking rod is synchronously rotated, The transmission device capable of rotating laterally with respect to the rotation mechanism;
A bicycle stand characterized by comprising:

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