JPH0315432Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a bicycle in which the saddle position can be changed while the bicycle is running.

(Prior Art) Conventionally, a bicycle saddle is fixed to the upper end of a seat pillar that is slidably fitted into a pipe of a vertical frame. On the other hand, a slotted part is provided at the upper end of the vertical frame to which this seat pillar is attached, and symmetrical boss parts are provided on the outside of this slotted part, and one boss part has a female threaded part and the other A hole having a pedestal portion is provided in the holder, and the slotted portion is fastened by a bolt that is screwed into the female thread. With this structure, the seat pillar with the saddle attached is slid into the pipe of the vertical frame, and the saddle is fixed at a predetermined height with the bolts.

(Problem that the invention aims to solve) Generally, when riding a bicycle, the degree of fatigue varies depending on the height of the saddle, and the best condition is when you straddle the saddle and put your foot on the pedal, It is said that it is best to adjust the saddle to a height that allows your legs to fully extend when the clock is pointing towards 5 o'clock. However, with this, when the vehicle stopped temporarily, the feet did not touch the ground and the vehicle was unstable, causing the vehicle to fall or wobble. Therefore,
Although it is somewhat tiring, the current situation is that you are riding on the saddle with the toes of both feet touching the ground. Therefore, continuously stepping on the pedals over long distances, as in cycling, poses a major problem of fatigue.

Furthermore, a bicycle has been proposed, which is described in Japanese Utility Model Application Publication No. 62-22184, in which a saddle set at a low position is elastically moved upward using a coil spring while the bicycle is running. However, with conventional structures that use coil springs, when a person with short legs pushes the saddle into a low position and moves the saddle upward while riding, the strongly compressed coil spring expands to its full capacity. This is dangerous because it pushes the saddle up a lot, and there is also the problem that once the saddle has been pushed up, when you push it back down to a lower position, you have to push it down strongly against the elasticity of the coil spring, which requires a considerable amount of force. .

The present invention has been developed in view of the above points, and the saddle position can be adjusted up and down greatly depending on the length of the user's legs and then fixed. The object of the present invention is to provide a bicycle with good usability and operability, in which the position of the saddle can be easily finely adjusted up and down by moving the saddle.

(Means for Solving the Problems) Next, means for achieving the above object will be described with reference to drawings corresponding to embodiments.

That is, the bicycle of the present invention is slidably inserted into a vertical frame 3 made of a pipe of a bicycle body from an opening at the upper end thereof, and is slidably inserted into a vertical frame 3 made of a pipe of a bicycle body through a predetermined sliding movement by a tightening lever 5 provided at an opening at the upper end of the vertical frame 3. an outer cylinder 36 that is fixed in position; a cylindrical saddle post 2 that is slidably inserted into the outer cylinder 36 from an opening at its upper end and has a saddle 1 provided at its upper end; inserted into cylinder 3
3, the piston rod 35 is projected so as to be able to freely slide up and down, and when pushed, the piston rod 35 is slidably biased against the cylinder 33 and is movable in the up and down direction, and when it is in the free projecting position. a gas spring 6 having a push rod 34 in which a piston rod 35 is fixed by gas pressure at a predetermined protruding position with respect to the cylinder 33; a fixing plate 39 for coupling and fixing a lower part of the gas spring 6 to the outer cylinder 36; a locking member 40 for coupling and fixing the upper part of the spring 6 to the saddle post 2; a locking member 40 provided on the outer wall of the upper part of the saddle post 2;
The present invention is characterized in that it is equipped with a push rod lever 44 whose tip end can be freely pushed and operated.

(Function) With the above means, the user first loosens the tightening lever 5, slides the outer cylinder 36 up and down within the vertical frame 3 in accordance with the length of the leg, and then moves the tightening lever 5. By loosening , the approximate height of the saddle 1 protruding above the outer cylinder 36 is adjusted and determined.

In this state, the push rod lever 44 is operated to push down the tip of the push rod 34 to make the piston rod 35 movable, and the user's own weight is applied to the saddle 1 before traveling and immediately before stopping after traveling.
Then, the saddle post 2 is pushed down together with the piston rod 35 via the locking member 40 against the outer cylinder 36 fixed at the fixed position, and the push rod lever 44 is set in a free state at an appropriate pushed down position. Fix the piston rod 35.

Next, while the vehicle is running, the push rod lever 44 is operated again. Then, the saddle 1 elastically moves upward with respect to the outer cylinder 36 fixed at the fixed position via the saddle post 2 and the piston rod 35, and releases the push rod lever 44 at an appropriate height. As a state, it is sufficient to fix the saddle 1.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. FIG. 1 is a side view of a bicycle having a commonly used drop handlebar for cycling and a transmission mechanism. In FIG. 1, the spokes of the front and rear wheels are omitted. In FIG. 1, reference numeral 1 in the figure is a saddle, and a saddle post 2 is attached to the bottom of the saddle 1, and the saddle post 2 is connected to a vertical tube made of a pipe of the bicycle body through an outer cylinder 36. It is slidably mounted within the frame 3. A slotted portion (not shown) is provided at the upper end of the vertical frame 3, and boss portions 4 are provided on both sides of the slotted portion. A female threaded portion is provided on one side of the boss portion 4, and a bolt having a tightening lever 5 is inserted and screwed into this female threaded portion from the other side of the boss portion 4. Therefore, by turning the tightening lever 5 clockwise, the slotted portion of the vertical frame 3 is tightened, the outer cylinder 36 inserted into the vertical frame 3 is fixed, and the tightening lever 5 is rotated in a clockwise direction. By turning clockwise, the slotted portion is loosened and the outer cylinder 36 can be slid up and down with respect to the vertical frame 3 to adjust its height.

A push-lock type gas spring 6 is provided within the saddle post 2. This push-lock type gas spring 6 is shown in FIGS.
As shown in the figure, a push rod 34 is inserted into the piston rod 35, and a valve is attached to the tip. It is designed to change the movement of 35. As the push-lock type gas spring, the gas spring disclosed in Japanese Patent Publication No. 50-38988 or Japanese Patent Publication No. 47-38222 may be used.

In a steady state (the state in which the push rod 34 is lifted above the piston rod 35), the push rod 34 is pushed up against the piston rod 35 even by pressure.
is stationary, and when the push rod 34 is pushed into the piston rod 35, the piston rod 35 becomes movable.

Push lock type gas spring 6 like this
An outer cylinder 36 is provided around the outer cylinder 36.
is inserted and fastened into the vertical frame 3. A slide bush 37 is provided on a part of the inside of the outer cylinder 36, and the saddle post 2 is slidably fitted inside the slide bush 37. The saddle 1 is attached to the upper end of the saddle post 2, forming a bicycle as shown in FIG. The fixed end side of the cylinder 33 of the push-lock gas spring 6 housed inside the saddle post 2 is connected and fixed to a fixing plate 39 provided at the lower end of the outer cylinder 36, and the piston rod 35 side is connected to a locking member 40. Post 38 via pin 40a
It is locked to. Figure 2 B for saddle post 2
A guide slot 41 as shown in FIG. The range is regulated.

The lock mechanism 43 is configured to operate the piston rod 35 by means of a push rod lever 44 that presses the tip of a push rod 34 provided on the piston rod 35.
This push rod lever 44 is attached to the saddle post 2.
It is pivotally supported by a shaft 45a of a boss portion 45 provided above, and is configured to be rotated in the vertical direction.
One end of the push rod lever 44 is inserted through a window provided on the outer wall of the saddle post 2 and engaged with the push rod 34 provided on the piston rod 35, and the other end provided on the outside has a
A handle 46 is attached. This handle 46 is located under the saddle 1, and by operating the handle 46, the push rod 34 is moved to the piston rod 35.
The piston rod 35 can be pushed in to allow movement of the piston rod 35. The handle 46 can be operated directly, but as shown in FIG.
It can be operated by an operating lever 8 provided on the handle 7 via a cable wire 9.

The operation of the above configuration will be explained below. The saddle 1 is attached and fixed to the upper end of the saddle post 2. The outer cylinder 36 of the saddle post 2 to which the saddle 1 is attached is inserted into the vertical frame 3, and the outer cylinder 36 is fixed with the tightening lever 5 of the boss portion 4 provided on the vertical frame 3. At this time, the saddle 1 is stopped at a predetermined position by the action of the push-lock type gas spring 6, but when the user sits down on the saddle 1 and operates the push-lock lever 44, the push-lock is stopped. The type gas spring 6 is loaded, the piston rod 35 is compressed, and the saddle post 2 is inserted into the outer cylinder 36. Then, while straddling the saddle 1, make sure that the toes of both feet touch the ground, and operate the push rod lever 44 to fix the position of the saddle 1. In this state, step on the pedals 10 of the bicycle and while running the bicycle, place your feet on the pedals 10, raise your hips above the saddle 1, and operate the handle 46 of the push rod lever 44 to release the lock mechanism 43. saddle 1
Since it is fixed at the position where it touches your waist, you can continue driving. When the bicycle is to be temporarily stopped, the lock mechanism 43 is released by operating the push rod lever 44, the saddle 1 is lowered, and the bicycle is supported with both feet.

(Effects of the Invention) As explained above, according to the bicycle of the present invention, the push rod lever 44 provided on the saddle post 2 at the bottom of the saddle 1 and the user's own weight can be used while riding the bicycle. The saddle 1 can be raised and lowered together with the saddle post 2 via the gas spring 6 inside the saddle post 2, and the saddle post 2 is inserted into the outer cylinder 36, and one end of the gas spring 6 is connected to the saddle post 2 at the same time. Connect the other end to outer cylinder 3
6, so that the saddle post 2 can be moved up and down relative to the outer tube 36, and the outer tube 36 is fixed to the tightening lever 5 at a predetermined vertical sliding position within the vertical frame 3 made of a pipe of the bicycle body. Since it is inserted so that it can be tightened and fixed freely, the user can
After fixedly adjusting the approximate height of the saddle 1 according to the length of the legs, the push rod lever 4 can be easily adjusted while riding the bicycle before and after each ride.
By the operation 4, the position of the saddle 1 can be adjusted up and down. Therefore, when adjusting the vertical movement of the saddle 1 while riding the bicycle,
It is safe because the saddle 1 does not move up and down with a large bounce, and it has excellent practical effects in that it does not take time or require a large force to raise and lower the saddle each time.

Furthermore, since the saddle 1 is always cushioned by the gas spring 6 while riding, the rider can enjoy comfortable riding.

[Brief explanation of the drawing]

Fig. 1 is a side view of a bicycle according to an embodiment of the present invention, Figs. 2 A and B are a sectional view and a view taken along arrow B of the same essential parts, and Fig. 3 is an enlarged view of the essential parts of Fig. 2. It is. 1...Saddle, 2...Saddle post, 3...Vertical frame, 6...Gas spring.

Claims (1)

[Scope of Claim for Utility Model Registration] The bicycle is slidably inserted into a vertical frame 3 made of a pipe of a bicycle body from an opening at its upper end, and is slid in a predetermined manner by a tightening lever 5 provided at an opening at the upper end of the vertical frame 3. an outer cylinder 36 that is fixed in position; a cylindrical saddle post 2 that is slidably inserted into the outer cylinder 36 from an opening at its upper end and has a saddle 1 provided at its upper end; inserted into cylinder 3
3, the piston rod 35 is projected so as to be able to freely slide up and down, and when pushed, the piston rod 35 is slidably biased against the cylinder 33 and is movable in the up and down direction, and when it is in the free projecting position. a gas spring 6 having a push rod 34 in which a piston rod 35 is fixed by gas pressure at a predetermined protruding position with respect to the cylinder 33; a fixing plate 39 for coupling and fixing a lower part of the gas spring 6 to the outer cylinder 36; a locking member 40 for coupling and fixing the upper part of the spring 6 to the saddle post 2; and a locking member 40 provided on the outer wall of the upper part of the saddle post 2, which locks the push rod 3 by an external operation.
A bicycle characterized in that it is equipped with a push rod lever 44 whose tip part can be freely pushed and operated.