JPH0681882U - Bicycle stand - Google Patents

Abstract

(57) [Summary] [Purpose] Improvement of a flip-up type bicycle stand. [Structure] An attachment base plate 1 fixed to a wheel of a bicycle, a leg rod 2 pivotally supported by the attachment base plate 1, and the leg rod 2
In a bicycle stand equipped with a lock lever 3 pivotally supported in a pivotal manner and a spring 4 for elastically biasing the lock lever 3 in a predetermined direction, a flip-up position of a leg rod 2 provided on a mounting substrate 1 In particular, by providing a rotation preventing claw 8 that integrally prevents the downward movement of the leg rod 2 near the stopper wall portion 7 that restricts the movement of the leg rod 2, the leg rod 2 that has pivoted to the flip-up position is On the other hand, on the one hand, the stopper wall portion 7 that restricts the flip-up position of the leg rod 2 contacts, and on the other hand, the rotation blocking claw 8 that blocks downward rotation of the leg rod 2 contacts. Under such a condition, even if the spring 4 is worn out, the leg rod 2 is inadvertently swung together with the lock lever 3 or the leg rod 2 falls downward, which hinders safe traveling. It can effectively prevent coming.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a stand that can be used for various bicycles.

[0002]

[Prior art]

 An example of the most popular stand will be described. The stand includes a mounting board fixed to the rear wheel side of a bicycle, a leg rod whose base end side is rotatably supported by the mounting board, and the leg. It consists of a lock lever that is pivotally supported by a rod and a tension coil spring that elastically biases the lock lever in a certain direction. By rotating downwards against the spring pressure of the tension coil spring, the lower end of the leg rod is grounded, and at the same time, the spring pressure of the tension coil spring is obtained and the lock claw of the lock lever moves to the mounting board side. By locking it in the receiving hole that is opened, it is possible to guarantee the stationary state of the bicycle, and when riding the bicycle, the lock claw of the lock lever is received above against the spring pressure of the tension coil spring. Remove from hole Reluctant, if rotating the Ashi杆 upward, thereby, has a structure that can guarantee the traveling state of the bicycle.

However, in this conventional stand, since the upward pivoting posture of the leg rod is exclusively maintained by the spring pressure of the tension coil spring, the spring exhibits its original function. However, due to long-term use etc., the tension coil spring and the foot rod will inadvertently swing together with the lock lever, causing an unpleasant metallic noise. Not only that, but in the worst case, there was a risk that the leg rods would drop downwards and interfere with safe driving.

Therefore, in order to eliminate the occurrence of such a situation, for example, an improved stand is disclosed in Japanese Utility Model Publication No. 39-38055. Although not specifically shown, the improved stand is provided with a lock hole at each portion of the mounting board corresponding to the standing position and the flipping position of the leg rod, while being rotatable on the mounting board. The base end of the pivoted rod is formed into a bifurcated shape, and a holding hole is formed on the back side of the bifurcated base end, and a steel ball is housed in the holding hole via an elastic pressing plate. By doing so, the steel ball can be elastically locked in each lock hole of the mounting board in accordance with the rotation of the leg rod.

Therefore, it goes without saying that even with this improved stand, it is possible to guarantee the standing state and running state of the bicycle by the vertical rotation of the leg rods, but under each of these states, the tension coil spring In addition to the urging spring pressure, the steel ball will be locked in the corresponding lock hole, so the tension coil spring will get loose and the original function will not be able to be exerted especially when the leg rod is flipped up. However, it is possible to prevent the leg rod from swinging together with the lock lever to generate an unpleasant metallic sound, or to prevent the leg rod from dropping downward to hinder safe driving.

[0006]

[Problems to be solved by the device]

 However, in such an improved stand, in order to securely maintain the flipped state of the leg rod, two lock holes are provided on the mounting board side, and the base end of the leg rod is also provided. To provide a two-pronged shape with a holding hole, a steel ball that engages with the lock hole, an elastic pressing plate that elastically holds the steel ball, etc. are separately required, so the number of parts naturally increases. There is a big problem that the assembly work becomes difficult and the stand itself becomes expensive, and the elastic pressing plate holding the steel ball swings with the hetar, and the leg rod swings together with the rock lever. It could not be denied that there is a possibility that the leg rod may fall downward. Moreover, this was sufficiently likely to be caused by wear of steel balls and the edge of the lock hole.

[0007]

[Means for Solving the Problems]

 The present invention was developed in order to effectively solve the above-mentioned problems of the improved stand, and includes a mounting board fixed to a bicycle wheel, and a leg rod pivotally supported by the mounting board. Provided on the mounting board on the technical basis of a bicycle stand equipped with a lock lever pivotally supported by the leg rod and a spring for elastically biasing the lock lever in a predetermined direction. Adopting a structure in which a rotation blocking claw that blocks the downward rotation of the leg rod is integrally provided in the vicinity of the stopper wall that controls the position where the leg rod is flipped up.

[0008]

[Action]

 Therefore, even in the present invention, if the leg rod is rotated downward together with the lock lever against the spring pressure of the spring, the lower end portion of the leg rod is grounded and the bicycle is kept stationary. It is needless to say that the bicycle traveling condition can be guaranteed by rotating the leg rod upward while releasing the locked state of the lock lever against the spring pressure of the spring. However, in particular, with respect to the leg rod that has pivoted to the flip-up position, on the one hand, the stopper wall part that regulates the flip-up position of the leg rod comes into contact, and on the other hand, the pivot of the leg rod downward is required. Under this condition, even if the spring is worn out and its original function cannot be exerted, the leg rods are locked with lock levers. It is possible to effectively prevent the vehicle from swinging and generating an unpleasant metallic sound, or the leg rod dropping downward to hinder safe driving.

[0009]

【Example】

 Hereinafter, the present invention will be described in detail with reference to an illustrated embodiment. A bicycle stand according to the embodiment of the present invention is basically fixed to the rear wheel side of the bicycle as shown in FIG. Substrate 1 with attachment, leg rod 2 whose base end portion 2a side is rotatably supported on mounting substrate 1 via stud 5, and rotatably supported on leg 2 via stud 6. The lock lever 3 and the tension coil spring 4 that elastically biases the lock lever 3 in a predetermined direction are provided. The feature is that the following configuration is adopted.

That is, in the present embodiment, the upper stopper wall portion 7 for restricting the flip-up position of the leg rod 2 is integrally provided on the lower one side edge of the mounting substrate 1, and the upper stopper wall portion 7 is A rotation blocking claw 8 for blocking the downward rotation of the leg rod 2 is integrally provided at a lower portion, and a space 9 for accommodating the leg rod 2 is provided between the rotation blocking claw 8 and the upper stopper wall portion 7. It is a very simple structure that defines The mounting board 1 is further provided with a lower stopper wall portion 10 for restricting the standing position of the leg rod 2 on the other side edge of the lower portion thereof, and one end portion 4a of the tension coil spring 4 on the upper side thereof. A boss portion 11 to be hooked is provided, and particularly with respect to the lower stopper wall portion 10 of the former, in addition to the regulating function of the leg rod 2, the switching claw 12 of the lock lever 3 collides with the lock lever 3 automatically. It is configured so as to have both the function of rotating in the locking direction and the function of locking the lock claw 13 of the lock lever 3 by opening a receiving hole (not shown). Further, the lock lever 3 is provided with the switching claw 12 and the lock claw 13 at a base end portion 3a having a horizontal U-shape, and at the same time, a hook hole 14 for hooking the other end portion 4b of the tension coil spring 4 is formed. .

Therefore, even in the stand having such a structure, as shown in FIG. 2, the lower rod wall 10 together with the lock lever 3 resists the spring pressure of the tension coil spring 4. If the lower end 2b of the leg rod 2 is grounded and the spring pressure of the tension coil spring 4 is obtained at the same time, the lock claw 13 of the lock lever 3 moves to the mounting base plate 1 by rotating downward until it is subjected to the regulation. By engaging with the receiving hole provided on the side of the lower stopper wall 10 to ensure the standstill state of the bicycle, it is only necessary to force the leg rod 2 to rotate downward. Since the leg rod 2 can be easily removed from the space portion 9 only by rotating it, the existence of the rotation preventing claw 8 never interferes.

On the contrary, as shown in FIG. 3, the leg rod 2 is regulated by the upper stopper wall portion 7 while removing the lock claw 13 of the lock lever 3 from the receiving hole against the spring pressure of the tension coil spring 4. If it is rotated upward until it is received, the base end 2a side of the leg rod 2 will automatically enter into the space 9 and the running state of the bicycle can be guaranteed by this. In the flipped-up state, as shown in FIG. 4, on the one hand, the upper stopper wall portion 7 that regulates the flipped-up position of the leg rod 2 abuts on the side surface of the leg rod 2, and on the other hand, below the leg rod 2. Since the rotation preventing claw 8 for preventing the rotation to the abutment comes into contact, even if, for example, the tension coil spring 4 is worn out and the original function thereof cannot be exerted, the leg rod 2 is still provided as in the conventional case. It rocks with the lock lever 3 and emits an unpleasant metallic sound. Therefore, it is possible to effectively prevent the vehicle from being damaged or the leg rod 2 falling downward, which may hinder safe driving. Further, in this case, the spring pressure of the tension coil spring 4 serves as a force for drawing the base end portion 2a of the leg rod 2 into the space portion 9.

In the above embodiment, the stand of the auto-lock mechanism is targeted, but the present invention is not limited to this, and other flip-up type stands can be used. Needless to say, it can be easily implemented and applied.

[0014]

[Effect of device]

 As described above, even in the present invention, even if the spring is worn out and the original function cannot be exerted, the leg rod swings together with the lock lever to generate an unpleasant metallic sound. It is possible to prevent it from falling or the leg rods falling downwards, which hinders safe driving. Since the blocking claws need only be integrally provided on the mounting board side, the number of parts can be greatly reduced, the structure can be simplified and the assembly workability can be improved compared to the improved type described above. As a result, it was possible to provide a stand at a low cost for the first time.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a bicycle stand according to an embodiment of the present invention.

FIG. 2 is a front view showing a standing state of the leg rod.

FIG. 3 is a front view showing a state where the leg rod is flipped up.

FIG. 4 is an enlarged cross-sectional view of an essential part for explaining a holding state of a leg rod.

[Explanation of symbols]

 1 Mounting board 2 Leg rod 2a Same base end 2b Same lower end 3 Lock lever 4 Extension coil spring (Spring) 7 Upper stopper wall (Stopper wall) 8 Rotation prevention claw

Claims (1)

[Scope of utility model registration request] 1. A mounting board fixed to a bicycle wheel,
A bicycle stand including a leg rod pivotally supported by the mounting substrate, a lock lever pivotally pivoted by the leg rod, and a spring for elastically biasing the lock lever in a predetermined direction. In the above, in the vicinity of the stopper wall portion that restricts the flip-up position of the leg rod provided on the mounting substrate, a rotation preventing pawl that prevents the leg rod from rotating downward is integrally provided. Bicycle stand.