JPH0321395B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a parking brake device for a bicycle.

[Conventional technology]

Conventional bicycles are equipped with a front wheel brake and a rear wheel brake to maintain safety while riding, and both brakes are activated by pulling the brake bars at the left and right ends of the handlebar. . Usually, the front wheel brake is a rim brake that presses a piece of hard rubber against the inside of the rim, and the rear wheel brake is a band brake that has a drum fixed to the hub body and a band wrapped around it and pulled. Also,
The bicycle has an inverted gate-shaped stand attached to the rear hub support section so as to be able to swing freely, and the bicycle was parked in an upright position by erecting this stand and lifting the rear wheel.

[Problem that the invention seeks to solve]

However, even when a bicycle is parked on its stand, the front wheel rotates and the handlebars move left and right, so if someone else touches the handlebars, the bicycle loses its balance and tends to fall over, making it difficult to put a lot of shopping in the luggage basket on the front wheel. If the car is parked with an infant on the rear wheel platform, the center of gravity will be upwards, making it more likely to fall over, and if it falls over, it could be very dangerous, such as damaging shopping or injuring the infant. .

[Means for solving problems]

In order to solve the above-mentioned problems, this invention connects the tip of the outer pipe of the parking brake wire to one arm of the front wheel brake, and connects the tip of the same core wire to the other arm. A handle shaft brake is provided above the front wheel brake, which is comprised of a large diameter and concentric circular brake ring fixed to the handle shaft, and upper and lower clamp pieces attached to the front pipe and sandwiching the brake wheel. The upper arm piece is connected and fixed to the front pipe, and the lower arm piece is vertically swingable, and the upper arm piece is connected to the tip of the outer pipe of the parking brake wire, and the lower arm piece is connected to the same core wire. The tips are connected to each other, the rear wheel of the outer pipe of the parking brake wire is connected to the stand support plate of the rear wheel hub bearing part, and the rear end of the same core wire is connected to the parking stand. When the parking stand is erected, the core wire of the parking brake wire is pulled to operate the front wheel brake and the steering wheel shaft brake.

[Effect]

According to this invention, when the horizontal parking stand facing rear is raised in order to park, the core wire of the parking brake wire is pulled, and the front brake is connected to the normal handle part. In the same way as when you pull the brake lever, the pair of C-shaped clamps come into contact with the side of the rim of the bicycle, and the lower handlebar lever of the handlebar shaft brake is pulled up and, together with the upper clamp, clamps the brake wheel and stops it. The handle will lock automatically.

〔Example〕

Embodiments of the invention will be described based on the accompanying drawings. As shown in FIGS. 1 and 2, the parking brake device for a bicycle according to the present invention connects a brake lever 13 of a handlebar to a parking brake wire 2 attached to a vehicle body along a rear wheel brake wire 1.
Front wheel brake 3 operates in the same way as when pulling the
and a handle shaft brake 4 (details will be described later) provided above the front wheel brake 3.The rear end of the parking brake wire 2 is connected to a parking stand 5, and when the stand 5 is raised, The front wheel brake 3 and the handle shaft brake 4 are automatically operated.

The front wheel brake 3 consists of a pair of C-shaped clamp pieces 9 and 10 attached via a center shaft 8 to the lower end of a handle shaft 7 rotatably supported by a front pipe 6.

Further, the upper end of the inverted gate-shaped parking stand 5 is swingably attached to a substantially semicircular stand support plate 12 fixed to the bearing portion of the rear wheel hub 11 via a support shaft 32.

At the upper left protruding end of one of the latch pieces 9 constituting the front wheel brake 3, there is an outer pipe 15 tip of the wire 14 connected to the brake lever 13 of the handlebar, and at the left end of the other lug piece 10, the outer pipe of the same wire 14 is attached. The tips of the core wires 16 protruding from the core wires 15 are connected to each other.

A parking brake wire 2 is attached along the horizontal chain stay 17 and the inclined front pipe frame 18 of the bicycle.
is a flexible outer pipe 19 for protection and an outer pipe 1.
It consists of a core wire 20 that is inserted into the inside of the pipe frame 18, and the tip thereof is bent into two pieces through a fixed pulley 22 connected to an adjustment coil spring 21 in the middle of the front pipe frame 18. It's summery. One of these two wires is the front brake 3
The other end is connected to the handle shaft brake 4.

In the front wheel brake 3, the tip of the outer pipe 19 of the parking brake wire 2 is attached to the upper left protruding end of one of the clamp pieces 9, like the wire 14, and the same core wire 20 is attached to the tip of the other clamp piece 10. The tips are connected in line with the wires 14, respectively. A hard rubber piece 23 (see Fig. 3) is attached to the lower end of both the clamp pieces 9, 10, and when the brake lever 13 is pulled, the pair of hard rubber pieces 23 clamp the rim of the front wheel and press against it to apply the brake. At the same time,
Even if the core wire 20 of the parking brake wire 2 is pulled, the front wheel brake 3 is applied in the same way.

Similar to the handlebar shaft brake 4 and front wheel brake 3, the brake wheel 25 (see FIGS. 4 and 5 (See figure details)
, and upper and lower clamping pieces (details will be described later) that sandwich the brake wheel 25 that is connected to the front side of the split tube 26 that surrounds the front pipe 6.

The brake wheel 25 is fixed to the lower end of the handlebar shaft 7 via the upright plate 24 and the center shaft 8 in the same way as the pair of clamp pieces 9 and 10 of the front wheel brake 3, so it can be rotated left and right in the same way as the handlebar. move. As shown in FIG. 3, the split pipe 26 is fixed to the front pipe 6, that is, to the bicycle frame body. As shown in FIGS. 4 and 5, the upper arm piece is composed of a pair of vertical plates 28 having elongated holes 27 and connected to the split tube 26, and the lower arm piece is attached to this vertical plate 28. It is composed of a brake piece 30 that is attached to a support shaft 29 so as to be able to swing vertically, and the brake wheel 25 inserted into the elongated hole 27 is held between the brake pieces 30 and fixed to the handle shaft 7, i.e. This will prevent the steering wheel from rotating.

In the parking brake wire 2, the core wire 20 at one end is connected to the end of the brake piece 30, and the outer pipe 19 is connected to the upper end protruding piece 31 of the right vertical plate 28, and when the core wire 20 is pulled, The brake piece 30 swings upward and comes to grip the brake wheel 25 in the elongated hole 27. A coil spring 34 with a core wire 20 inside is attached between the brake piece 30 and the protruding piece 31, so that the brake piece 3 is always
0 is pressed downward, and when the stand 5 is kicked up horizontally, the brake piece 30 returns to its downward position.

As shown in FIG. 6, the rear end of the parking brake wire 2 is such that the rear end of the core wire 20 is located below the support shaft 32 of the stand 5, and the rear end of the outer pipe 19 is located behind the stand support plate 12. The core wire 20 enters into the outer pipe 19 when the stand 5 is lifted horizontally backward (see the chain line in FIG. 6) when riding the bicycle. When the core wire 20 is raised up, the core wire 20 is automatically pulled out.

In addition, this parking brake wire 2 can be used by adjusting the pipe screws 35 and nuts 36 attached to both ends of the outer pipe 19 to shift the position of the outer pipe 19, or by adjusting the set screws fixing the core wire 20. 3
7 to adjust the tension of the core wire 20.

〔effect〕

As described above, the bicycle parking brake device according to the present invention includes a rim brake type front wheel brake and a handle shaft brake provided above the rim brake type front wheel brake.
It is operated by a parking brake wire that connects the rear wheel to a parking stand located on the rear wheel hub bearing.When the stand is raised, the brake is automatically activated, and the handle shaft or handle is It does not move and the front wheels do not turn, so even if someone touches the steering wheel while parking, you will not lose your balance and fall over, and if you put a lot of shopping in the luggage basket on the front wheels or on the luggage rack on the rear wheels. It is safe even with infants in the car, allowing you to park the car with confidence, and the brakes automatically operate just by operating the stand.

[Brief explanation of drawings]

1 and 2 are a perspective view showing an embodiment of the present invention and a side view showing a bicycle equipped with the same, and FIG. 3 is a side view showing the vicinity of the front pipe of the same.
FIGS. 4 and 5 are a side view and a cross-sectional view showing the handle shaft brake of the above, and FIG. 6 is a side view of the vicinity of the rear wheel hub of the above. 2... Parking brake wire, 3... Front wheel brake, 4... Handle shaft brake, 5... Stand, 6... Front pipe, 7... Handle shaft, 9,1
0...Rack piece, 11...Rear wheel hub, 19...Outer pipe, 20...Core wire, 25...Brake wheel, 3
0...Brake piece.

Claims (1)

[Claims] 1. A front wheel brake consisting of a pair of C-shaped clamps is provided at the lower end of the handle shaft rotatably supported by the front pipe, and a parking stand is swingably attached to the stand support plate of the rear wheel hub bearing. In the automobile, the tip of the outer pipe of the parking brake wire is connected to one of the front wheel brakes, and the same as the core wire is connected to the other of the front wheel brakes, and the wire is fixed to the handlebar shaft above the front wheel brake. In addition, there is a handle shaft brake that is larger than this and consists of a concentric circular brake wheel and upper and lower clamp pieces that are attached to the front pipe and sandwich the brake wheels, the upper clamp piece is connected and fixed to the front pipe, and the lower The clamp piece is vertically swingable, and the tip of the outer pipe of the parking brake wire is connected to the upper clamp piece, and the tip of the same core wire is connected to the lower clamp piece. The rear end of the outer pipe of the parking brake wire is connected to the stand support plate, and the rear wheel of the same core wire is connected to the parking stand. A parking brake device for a bicycle in which a core wire is pulled to operate the front wheel brake and handle shaft brake.