JPH0535916Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a bicycle stand.

[Conventional technology]

As shown in Figures 5 to 7, the conventional stand has a mounting plate 1 that is fixed to the frame by a rear hub axle and a nut, and a mounting plate 1 that is rotatably attached to the mounting plate 1 via a support shaft 2. It consists of a stand leg 3, a spring 4 for holding the stand leg 3 up while running, and a lock mechanism 5 that prevents the stand leg 3 from being sprung up due to some external force when the stand leg 3 is in an upright state. The method is to stand the stand legs 3 shown in FIG. 5 as shown in FIG. Also, locking part 8
are fitted and locked as shown in FIG.

[Problem that the invention attempts to solve]

If some external force is applied when the lock mechanism is misengaged, the stand leg will spring up and the bicycle will fall.

As a result, there were problems such as injuries to infants riding on the vehicle or damage to items on board.

[Means for solving problems]

In order to solve the above problems, this invention has a mounting plate that is fixed to the frame, a stand leg whose upper end is rotatably attached to the mounting plate via a pin, and a stand leg whose upper end is rotatably attached to the mounting plate via a pin. A lock plate has an upper end rotatably attached, both ends are supported by the lower end of the lock plate and a mounting plate, and the lock plate is forcibly rotated in the rotation direction from the middle of rotation. A spring, a protruding piece protruding from the periphery of the mounting plate, a holding plate protruding from the upper edge of the locking plate and provided so as to cover and engage with the protruding piece only when the stand legs are in the upright position, and the stand. A rocking plate whose upper end is rotatably attached to the mounting plate by being inserted between the edge of the foot and the holding plate, and a holding plate attached to the edge of this rocking plate as the stand leg rotates in the leaning direction. A cam edge is provided to push the inner surface of the lock plate and rotate the lock plate to a position where it is forcibly rotated by the action of a spring before the stand legs are fully propped up.

[Effect]

When the stand legs are propped up, the rocking plate rotates together with the stand legs. As a result, while the above-mentioned rocking plate slides toward the lower end of the stand leg, the cam edge pushes the inner surface of the holding plate, forcing the stand leg to rotate in the kicking direction, and allowing the stand leg to be propped up. On the lock board before the end,
A spring applies a force for forced rotation, and the edge of the holding plate is pressed against the edge of the protruding piece.

As the stand leg rotates to the end position, the edge of the holding plate slides, and the holding plate comes off from the edge of the protruding piece, and the holding plate covers and engages the protruding piece. Therefore, the stand is automatically locked and the stand legs are prevented from springing up.

〔Example〕

In the figure, 11 is a mounting plate fixed to the brake.

The mounting plate 11 is configured such that a hub shaft (not shown) passes through the through hole 12 and is fixed by tightening a nut of the hub shaft.

Reference numeral 13 denotes a stand leg whose upper end is rotatably attached to the mounting plate 11 via a pin 14.

Reference numeral 15 denotes a rotation angle limiting stopper device that stops the stand leg 13 at the upright position and at the raised position, respectively.

The above-mentioned stopper device 15 has an arc-shaped elongated hole 16 provided in the mounting plate 11 in the case shown in the figure, and a stand foot 13.
A pin 1 protrudes from the hole 16 and passes through the elongated hole 16.
It consists of 7.

Reference numeral 18 denotes a lock plate whose upper end is rotatably attached to the upper end of the stand leg 13 via a pin 19.
The both ends of the spring 21 are engaged with the hook 20 connected to the lower part of the spring 21, so that the spring 21 can be rotated forcibly in the rotation direction from mid-rotation.

Also, on the mounting plate 11, a protruding piece 22 is provided on the locking plate 18.
A holding plate 23 is provided on the side edge of the stand, which covers and engages the protruding piece 22 only when the stand leg 13 is in the upright position.

The above-mentioned holding plate 23 is provided by extending the side plate of the locking plate 18, and the extension piece is folded back so that the tip is supported by the pin 19 to prevent deformation of the holding plate 23.

Reference numeral 24 denotes a rocking plate which is fitted between the edge of the stand leg 13 and the holding plate 23 and whose upper end is rotatably attached to the mounting plate 11 via a pin 27.
The inner surface of the holding plate 23, which does not recover when the stand legs 13 are rotated in the leaning direction, is pushed on the edge of the spring 21 before the stand legs 13 are finished leaning.
Lock plate 18 to the position where it is forcibly rotated by the action of
A cam edge 25 is provided for pivoting. That is, when the springing stand leg 13 of FIG. 1 is rotated in the leaning direction, the swing plate 24 is slid toward the lower end of the stand leg 13 while also rotating the swing plate 24.

As a result, the lock plate 18 is rotated counterclockwise in FIG. 1 while pushing the inner surface of the holding plate 23 by the cam edge 25 to stretch the spring 21, and the lock plate 18 is forced by the contraction of the spring 21. When the rotation position (dead point) is reached, the lock plate 18 is forcibly rotated counterclockwise, and as shown in FIG.
Press the edge of the

Therefore, between before and after the end of the leaning, the edge of the holding plate 23 slides, and when the edge of the holding plate 23 comes off from the protruding piece 22, the locking plate 18 rotates and the protruding piece 22 Since the holding plate 23 overlaps and engages with the stand leg 13 as shown in FIG. 3, the stand leg 13 is prevented from springing up.

Incidentally, when the stand leg 13 is to be lifted up, the lock plate 18 is kicked down to release the engagement between the protruding piece 22 and the holding plate 23 as shown in FIG.

At this time, a collision with the lower edge of the holding plate 23 is avoided by the recessed part 26 provided in the middle of the cam edge 25.

Then, the stand legs 13 are lifted up.

〔effect〕

As described above, according to the bicycle stand of this invention, when the stand legs are placed against the stand, the protrusions on the mounting plate rotate while the locking plate is rotated by the contact between the cam edge of the rocking plate and the holding plate. Since the holding plate of the lock plate is automatically covered and engaged with the stand, it is possible to prevent the lock from springing up.

[Brief explanation of the drawing]

Figure 1 is a side view of the bicycle stand leg according to this invention, Figures 2 to 4 are side views showing the operating state, Figure 5 is a side view of the conventional stand, and Figures 6 and 7 are the same as above. FIG. 11...Mounting plate, 13...Stand legs, 14...
... Pin, 15 ... Stopper device, 18 ... Lock plate, 19 ... Pin, 21 ... Spring, 22 ... Projection piece, 23 ... Holding plate, 24 ... Rocking plate, 25 ...
...cam edge.

Claims (1)

[Scope of utility model registration request] A mounting plate to be fixed to the frame, a stand leg whose upper end is rotatably attached to the mounting plate via a pin, a lock plate whose upper end is rotatably attached to the upper part of the stand leg via a pin, and this lock. a spring that is supported at both ends by the lower end of the plate and the mounting plate and forcibly rotates the locking plate in the rotational direction from mid-rotation; and a protruding piece protruding from the periphery of the mounting plate; A holding plate protrudes from the upper edge of the lock plate and is provided so as to cover and engage with the protrusion only when the stand foot is in an upright position, and the holding plate is fitted between the edge of the stand foot and the holding plate. A rocking plate whose upper end is rotatably attached to the mounting plate, and the inner surface of the holding plate is pushed on the edge of this rocking plate as the stand legs are rotated in the direction of leaning the stand legs. A bicycle stand comprising a cam edge provided to rotate a lock plate to a position where it is forcibly rotated by the action of a spring.