JPS5815270Y2 - Seat post reinforcement and fixing device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reinforcing and fixing device for seat posts of bicycles, motorcycles, etc.

A seat set for a bicycle or motorcycle, that is, a seat post, usually has sufficient strength by itself, and is securely fixed in a vertical pipe using a seat pin, a tightening band, or the like.

However, for motocross bicycles, motorcycles, etc., which are intended for riding on rough, rough roads, or in particular for riding in fields, mountains, etc., the seat post has better strength, and its installation must be made stronger. It is required that

However, with conventional seat posts and their mounting methods, when riding under special conditions such as those mentioned above, excessive force may be applied, causing the seat post to bend, or the post to slip in a vertical pipe, causing the saddle to slide sideways. Some had problems where they would turn up or down.

This invention attempts to solve the above-mentioned problems of conventional seat posts for bicycles, motorcycles, etc., and its features include a fixing member for attaching to the seat post and a fixing member for attaching to the upper pipe. It consists of a member and a main body of a reinforcing/fixing device connected between the two members, and at least one of the two members is configured to have a variable mounting position.

It is an object of the present invention to provide a seat post reinforcing/fixing tool that can strengthen the seat post itself against bending force and further secure the seat post when attached to a vertical pipe.

The invention will be explained below by means of illustrated embodiments.

The reinforcing/fixing device A of the present invention includes a fixing member 2 for attaching to the seat post 1 of a bicycle, a fixing member 4 for attaching to the upper pipe 3,
The fixing member 2 for attaching to the seat post 1 has a band-shaped part 6 that can hold the post 1, and has a band-shaped part 6 that can hold the post 1. Round holes 8, 8 are formed in 7, 7, respectively.

The fixing member 4 for attaching to the upper pipe 3 also has a band-like part 9 capable of holding the pipe 3, and has round holes 11, 11 formed in opposite side parts 10 and 10 at the upper position. .

The main body 5 of the reinforcing/fixing device has an opening shape in cross section, and is attached to both side parts 7. Both leg pieces 14, 14 of the side parts 12, 13 can be held together.
．． Round holes 16, 16, 17, and 17 are formed in each of the holes 15, 15, and the length thereof is approximately 10 crrL.

Reference numerals 18 and 19 denote connection shafts, which are connected to the round holes 16, 16, 17, 17 on both sides 12, 13 of the reinforcing/fixing device main body 5 and the round holes 8, 8, 11, . 11, respectively, and insert the male threaded portion 2 on the outer periphery of the shaft 18.19.
0.21 and 22 and 23, respectively, and can be tightened and fixed.

In the figure, 24 is a tightening band, 25 is its handle,
26 is a saddle, and 27 is a vertical pipe.

Next, the usage conditions and effects of the present invention will be explained with reference to the above embodiments.

First, when installing the main reinforcing and fixing device A, attach the band-shaped part 6 of the fixing member 2 to the seat post 1 on both sides 7,
Attach the post 1 from below so that the part 7 is in the front position, and open the band part 9 of the attachment fixing member 4 to the upper pipe 3 so that the side parts 10 and 10 are in the upper position. Clothes to 3.

Then, the seat post 1 is inserted into the vertical pipe 27 so that the height of the saddle 26 is at a desired position, and fixed with the tightening band 24.

After that, both leg pieces 1 on one side 12 of the reinforcing/fixing device main body 5
At 4° 14, sandwich the both sides 7, 7 of the mounting fixing member 2 to the seat post 1, align the mating holes 16, 16.8, 8, and insert the connecting shaft 18 therein to connect. A nut 22 is screwed and tightened into the male threaded portion 20 to hold and fix the band-like portion 6 to the post 1.

On the other hand, both leg pieces 15.15 on the other side 13 of the reinforcing/fixing device main body 5 are used to sandwich both side parts 10.10 of the fixing member 4 for attaching to the upper pipe 3, and the matching holes 17, 17.11 are made. .1
1, and insert the connecting shaft 19 thereto to connect them, and screw the nut 23 into the male threaded part 21.
It is tightened and held and fixed to the pipe 3 by the band-like part 9.

Note that it is desirable that the mounting positions of both the mounting and fixing members 2 and 4 be such that the dimensions from the intersection of the axes of the seat post 1 and the upper pipe 3 are approximately equal.

By installing this reinforcing/fixing device A as described above, even if excessive force is applied while riding a bicycle or motorcycle on a rough, rough road or fields, the first thing to do is to protect the seat post. 1 rotates within the vertical pipe 27 and the saddle 26 does not turn sideways.

In other words, since one end of the reinforcing/fixing device A is fixed to the seat post 1 and the other end is fixed to the upper pipe 3, even if the seat post 1 attempts to rotate around its axis, it is blocked and the seat post 1 is prevented from rotating while riding. 26 never looks sideways.

Second, the seat post 1 does not bend backward.

In other words, the reinforcing/fixing device A pulls against the backward bending of the seat post 1, so the seat post 1 will not bend backward even if a large force is applied while driving. .

Thirdly, the seat post 1 is not pushed into the vertical pipe 27 while traveling.

In other words, one end of the main reinforcing/fixing device A is fixed to the seat post 1, and the other end is fixed to the upper pipe 3, so the main reinforcing/fixing device can withstand the force that tries to push down the seat post 1. A supports the seat post 1, and once set, the seat post 1 will not be pushed into the vertical pipe 27 and the position of the saddle 26 will not be lowered even if a large force is applied during riding.

In addition, if the mounting positions of the mounting and fixing members 2 and 4 are made variable as in the above embodiments, and the connection shafts 18 and 19 are rotatable,
Even after inserting the seat post 1 into the vertical pipe 27 and fixing it once so that the height of the saddle 26 is at the desired position, there is usually no need to change it at a later date, but if you wish to change it as necessary, Loosen at least one of the mounting and fixing members 2 and 4 on the post 1 side and the upper pipe 3 side, take out or insert the seat post 1 to determine the desired position, and then reattach the mounting and fixing members 2.
, 4 may be fixed.

Further, in the above embodiment, both the mounting and fixing members 2 and 4 are fixed to the seat post 1 and the upper pipe 3 by being held by the band-shaped portion 6°9, but this is not limited to this. It is sufficient if the mounting position is variable; for example, only one side can be made into a band-like part as described above, or, although not shown, a mounting and fixing member having a large number of holes in the axial direction is provided in the upper pipe, and one of the holes can be attached to the mounting position. One end of the main body of the reinforcing/fixing device may be connected and fixed with a connecting shaft, and the other end of the main body may be connected and fixed with a connecting shaft to a hole in a protrusion provided on the seat post.

Furthermore, the length of the reinforcement/fixing device main body 5 is 10crfL as mentioned above.
Of course, the mounting and fixing members 2 and 4 on both sides are not limited to variable mounting positions and do not need to be formed to be rotatable on the connecting shaft if a large number of dimensions are prepared. .

As described above, the seat post reinforcement/fixing device according to the present invention has a simple structure and can be easily attached to existing bicycles, motorcycles, etc. Also when driving,
This has the advantageous effect that there is no possibility of unexpected interruptions such as the seat post rotating, bending backward, or being pushed into the vertical pipe while driving.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, and Fig. 1 is a side view showing its usage state, Fig. 2 is a side view of the reinforcing and fixing device, and Fig. 3 is I-1 in Fig. 2. Enlarged cross-sectional view, Figure 4 is the 2nd
FIG. Drawing code, 1...Seat post, 2...
・Mounting fixing member, 3...Top pipe, 4...
...Mounting fixing member, 5...Reinforcement/fixing device main body.

Claims (1)

[Scope of claim for utility model registration] ■ Mounting fixing member 2 to seat post 1 and upper pipe 3
This reinforcing/fixing device for a seat post is made up of a fixing member 4 for attaching to the seat post, and a reinforcing/fixing device main body 5 connected between both members 2, 3, and in which at least one of the members 2, 3 can be attached to a variable position. ■ Attaching to the seat post 1 The fixing member 2 has a band-like part 6 that can hold the post 1 from the rear, and both side parts 7 facing each other at the front position, and round holes 8 are formed in the both sides 7. form,
The fixing member 4 for attaching to the upper pipe 3 has both side parts 1 facing at an upper position a band-like part 9 that can hold the pipe 3 from below.
0, round holes 11 are formed in both sides 10, and the reinforcing/fixing device main body 5 has a length that connects the two members 2 and 4, and has both leg pieces 14.0 on both sides. 15 with round holes 16 and 17
The two leg pieces 14.15 on each side of the main body 5 hold the side parts 7, 10 of the band-shaped parts 6, 9, respectively, and connect them to the round holes 8° 16, 11, 17 on each side. Scope of Utility Model Registration Claim 1, wherein the band-shaped parts 6, 9 can be fixed by inserting the shaft 18.19 and screwing the nut 22.23 into the male threaded part 20.21 of the shaft 18.19. Reinforcement and fixing device for the seat post as described in .