JPS601087A - Lifting gear for seat sitting section on travelling of bicycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for raising and lowering the seat portion of a bicycle, and more particularly to a device that allows the bicycle seat portion to be raised or lowered at will while the bicycle is riding.

Until now, there has been no proposal for this kind of device, and if I had to say, it would be better to integrate the seat 1 no. 1 and the connecting section 1 no. 1 pillar, and insert one end of the seat pillar into the vertical pipe of the frame. There is a device that can be adjusted only before riding, which is fixed by tightening bolts on the frame with a tool.
~・After adjusting the length of the pillar insertion, I tightened and fixed the pole 1~.

Because of this configuration, a tool such as a monkey key or a spanner is required to adjust the saddle height, and the saddle height must be adjusted and fixed before riding.

On the other hand, saddle 1! l! The ideal height is one that allows your knees to stretch slightly when you lower the pedal to the lowest position when driving.
The height should be such that both feet can lightly touch the ground when pausing.

However, as is well known, it is impossible to make the above two heights match, so if you prioritize the height when stopping, even when the pedal is at the lowest position while driving, the knee Since the legs are not straightened and remain bent, the legs are extremely fatigued and the running speed cannot be increased.

Also, if you prioritize stability when driving, it will be unstable because your feet won't reach the ground when you stop at an intersection, etc.
Extremely dangerous.

The object of the present invention is to provide a J device that eliminates the above-mentioned problems of the prior art.The purpose of this invention is to position the seating portion of the saddle, which is the contact portion with the wide portion of the wheel, at least in two positions: a high position and a low position. It consists of a stopping device that stops each of the three positions, and a guide device that guides the three positions along a predetermined trajectory.

The structure and operation of the present invention will be explained based on the drawings.

1 and 2 show a first embodiment.

(1) is a frame, and f(2) is a seat, shown by an imaginary line.

<3) is a linking part that connects the frame and the seat, and has the following configuration. That is, the seat attachment part (4), the upper member (6) having the protruding part (5), and the frame part (7) that fits into the inner diameter of the vertical vibrator of the frame (1).
〉, lower member (9) having a U-shaped photographic stop (8)
, two rear parts U (11) with the protruding part (10) on the right J-
and two front members (13) having a protrusion (12), and the respective members are movably linked by lever shafts (14) to (17) to form a four-joint arm. In this example, members (11> and (13)) are common parts.

(18) to (21) are buffer members made of rubber, plastic, or the like.

(22) is a click device that is composed of a click ball, a click spring, and a click hole, and acts between members (9) and (11).

The upper part of the vertical pipe of the frame (1) is provided with a 1=th fastening port 1~ and a slot for fastening the frame digit part (7) (not shown).

The operation of the above first embodiment will be explained. The drawing shows the high position state, and the protrusions (5), (10) and the buffer member (1) are shown in the high position state.
8) and similarly (8), (12), and (19) are in the engaged state, respectively, so the members (11) and (13) cannot rotate clockwise any further.

In order to change from this state while running to a lower position for stopping, it is necessary to move the When the seat (2) is moved forward by hand or the wide part against the click 1ffi (22), the members (11) and (13) move counterclockwise.
It rotates in one direction, and the rotation stops when the lower end surface of the lower member (6) hits the upper end surfaces of the buffer members (20) and (21).

As a result, the seat (2), more precisely the seating portion in contact with the wide portion, is lowered by the vertical dimension of the lower end surface and the upper end surface, and the object of the present invention can be achieved.

If you want to make the seating part higher, just do the opposite of the above.

In addition to the effects described below, this embodiment is also a valuable invention for those who already own a bicycle, since the present invention can be applied to conventional bicycles by simply replacing the seat pillar with the product of the present invention.

3 and 4 show a second embodiment. Parts with the same numbers as those in the first embodiment are the same or similar parts as in the first embodiment.

Number of seats (= 1 part (4) and frame 7 cover (= J part (7) are integrated. And Sea I~ Pillar (4, 7) push-up spring (30), spring stopper Bolts (31), multiple screw holes (3
2> and a tapered hole (33), a guide pin (34) screwed into one of the threaded holes (32), a number marked on the frame (1) to guide the guide bin (34), and the upper end of the guide pin (34) is screwed into one of the screw holes (32). ]
~ The lower end of the sleeve is set facing one of the straight guide grooves (35) and tapered holes (33) that serve as low-position stoppers (
) drilled guide hole (36), machine screw (37) (38)
Fixing members (39) (40), fixing members'(39> (4) fixed to the longitudinal pipe of the frame (1) at
a hollow cable (41) provided between the guide hole (3G) and the guide hole (3G); a wire (42) fitted therein;
A lock pin (43) is fixedly attached to one end of the wire (42) and has a circular tip. Push the operating lever (45), which is supported by a shaft and has a wire fixed at one end, to the right side of the drawing with the lock pin (43) in the protruding direction (=l '3'
The bottom of the groove is filled with a spring (46).

The operation of the above second embodiment will be explained. The drawing shows the high position state, and when the operating lever (45) is rotated clockwise against the force of the spring (4G),
), the lock bin (43) is pulled out from the hole (33) and the lock is released.

When J is turned, the pillars (4, 7) are lowered by the body weight against the force of the spring (30) to the sea 1, and the guide bin (
34) comes into contact with the lower end of the guide F+ (35) and stops. When the operating lever (45) is released, the spring (46) rotates the lock pin (43) counterclockwise in the ffth direction.
Since it faces the fifth tapered hole from the bottom in the figure, it is inserted into the hole, locking is completed, and the seating portion is held in a low position.

To get to a higher position, raise your butt from the seat and press the spring (3
0), the sea pillar (4, 7) is raised to the high position shown in Fig. 3. In this way, the height of the seating portion is 1, which corresponds to the length of the guide groove (35).
Therefore, the object of the present invention can be achieved.

The reason why there are multiple screw holes (32) is that the guide pin (34) can be attached to one of them or changed. This is to make it possible to obtain.

Figure 5 shows another embodiment of the locking device, which includes a solenoid (50) fixed to the frame (1), a battery (E), and a switch provided near the grip of the bicycle handlebar. (SW) and by closing the switch (SW), the solenoid (50) is activated by the spring (46).
) The lock bin (43) is moved to the left in the figure against the urging force of the spring (4G) to release the lock, and by opening the switch (SW), the lock bin (43) is moved to the right by the spring (4G) to complete the locking.

Although the explanation based on the drawings of the embodiment has been described above, other embodiments will be explained below.

b) In the first embodiment, the rotation axis (14) of the four-bar mechanism
The posture of the seat itself does not change even if the position of the seats changes from the height to the height of the parallelogram (1) to (17) arranged in a parallelogram, but if it is considered more effective to change the posture, each By changing the length of the side, -C is set like that 3
I can do 1.

For example, if you make the distance between the seats (1G) and (17) a little longer than shown in the drawing, the seat will point slightly upwards in the low position compared to the high position, and if you make it shorter (63<), the seat will point slightly downwards in the low position. Become.

It is also possible for the user to change these. In other words, if there are multiple holes for the lever shaft (17) provided in the member (13) ('J), the user can select one of them. The above can be achieved by using

In the first embodiment, the seat may be moved to a lower position or the front portion of the seat may be made to have a bulge.

C) In the first embodiment, the click device is not essential because stability can be obtained in two positions, both high and low, even without the click device, and the click device disclosed in the second embodiment is used in place of the click device. (Mechanical or electrical locking devices may be used to provide further stability.

2> In the first embodiment, if the configuration is such that an operating lever is provided at the front part of the frame (1) and the lever and the lever shaft (17) are connected by a continuous rod, the seating section can be controlled by operating this lever. ” You can make it go down two times.

e) It is desirable that the click device and lock device in () in the first and second embodiments operate at both high and low positions, but even if () operates at least at a high position, it is still useful. is enough.

f) In d) of the second embodiment, if low friction coefficient synthetic resin, bearings, etc. are used between the frame and the frame number part A, the seat can be raised and lowered more smoothly. .

1-) In place of the locking device (not shown in the second embodiment), a bell crank lever is provided on the frame, one of the levers is used as a lock pin, the other is used as a lock release handle, and the frame and the bell crank lever are connected. A spring is provided between the levers to bias the lever in the locking direction (a spring may be provided in the 111 configuration).

h) If the four-joint machine shown in the first embodiment (instead of the toma) is adopted as the lifting device shown in the second embodiment between the section with the number of seats and the section with the number of frames, White Qi7 with conventional configuration,
Easy modification of the LJ Rutari by installing spring stoppers 1~ on the frame even when the width is small, and the lifting device of the present invention.
) can enjoy the advantages of the present invention.

Of course, since the spring can be installed between the front and rear portions of the frame and the seat, there is no need for any minor modification.

As is clear from the above description, the present invention has the following effects.

The system is characterized by comprising a stopping device that stops the seating portion of the seat in at least two positions, a high position and a low position, and a guiding device that guides the seating portion of the seat along a predetermined trajectory between the three positions. Because it stretches out, it reduces fatigue, increases running speed, and when stopping, both feet reach the ground, which provides excellent stability and prevents injury.

Furthermore, even if you need to carry an umbrella in the rain, keeping it in a low position while driving will reduce fatigue and danger.

[Brief explanation of the drawing]

FIG. 1 is a side view of the main parts of the first embodiment of the present invention, and FIG. 2 is a side view of the main parts of the first embodiment of the present invention.
3 is a side view of essential parts of a second embodiment of the present invention, FIG. 4 is a front view of the same, and FIG. 5 is a front view of another embodiment of the locking device. Explanation of symbols representing main parts of the diagram Stop device... (5, 10, 188, 12, 196, 9
, 2133, 34, 35, 43) Guide device... (G,
9.11.13.14.15.16.171.7,34
．． 35) Frame...(1) E seat...(2) Seat number A" section..., (4) Frame number f4 section...(7) Elevating sleeve...Second embodiment (7> Holding sleeve・
...Spring for pushing up the upper part of the vertical pipe in the frame 1) of the second embodiment... (30)

Claims (1)

[Claims] 1. A device for adjusting the height of the seat from the pedal and the ground is placed on the right bicycle, and the seat is stopped at at least two positions, a high position and a low position. Consisting of a stop device and a guide device that guides the vehicle between the three positions on a predetermined trajectory, the passenger can freely select and use the seat seating area in either a high position or a low position based on his/her will even when driving. A device for lowering and lowering a seat seating part of a bicycle when the bicycle is running, characterized in that the seat part is lowered by the lower part. 2. The guide device is installed between the seat number fq part and the frame number i1 part of the connection part shrine that links the seat and the frame. /j P! ] A joint mechanism that lifts and lowers the seat of a bicycle while riding. 3. The guide device includes an elevating sleeve that is integrated with the number of seats A section, a frame or a holding sleeve that is attached to the frame and loosely fits the elevating sleeve, and a pusher that urges the seat toward a higher position. A bicycle seat comprising a spring for use and a locking device that operates at least at a high position when the bicycle seat is lowered and lowered during riding.