JPH0224390Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a seat post attachment for a bicycle saddle.

BACKGROUND TECHNOLOGY In the Yagura that is commonly used in the past, the band portion that is continuous with the chrysanthemum seat portion and holds the seat post has a substantially cylindrical shape.

Problems that the invention aims to solve: Therefore, when holding the seat post by tightening the mounting bolt with a nut, the adhesion force is often not perfect due to the contact between the cylindrical outer circumferential surface and the cylindrical inner circumferential surface. This may cause it to slip against the seat post. Particularly in motocross bikes that run in mountains and fields off the road, slipping is an absolute no-no, and complete fixation of this part is required.

Means for Solving the Problems The bicycle saddle seat post attachment Yagura of the present invention has the following configuration as a means for solving the above problems.

(1) An axial planar enlarged part is provided in the band part that holds the seat post continuously with the chrysanthemum seat part, and the seat post is fixed with the lower end folded in half and the upper end formed at a right angle in the planar enlarged part. The lower end of the folded piece is inserted and fixed.

Function According to the above configuration, when the mounting bolt is tightened with a nut, the tightening force is transmitted to the seat post through a narrower contact surface than before, so a large frictional force is generated, complete gripping is achieved, and slippage is prevented. Occurrence is completely prevented.

In addition, the upper end of the seat post fixing piece, whose lower end is inserted and fixed into the flat enlarged part, contacts the upper end of the seat post, so when tightening, the presence of the inserted part prevents the flat enlarged part from deforming, and at the same time, the Yagura seat This prevents it from falling downward from the post.

Embodiment FIGS. 1 and 2 show an example of an embodiment of the present invention, in which a band section 2 that holds a seat post 4 is connected to a chrysanthemum seat section 1 constituting a Yagura 6 and has an axial plane. Since the enlarged part 3 is provided, when it is fastened to the seat post 4, it contacts in a narrow area, so the frictional force is large and complete fixation can be achieved.

In addition, since the lower end of the seat post fixing piece 5, whose lower end is folded in half and whose upper end is formed at a right angle, is inserted and fixed between the planar enlarged part 3 and the seat post 4, the presence of the insertion part when fastening is performed. Therefore, it is possible to prevent the deformation of the enlarged plane portion 3 and to completely prevent the head of the seat post from slipping out from the Yagura. In this case, since it is made separately from the Yagura, the material cost is greatly reduced compared to the case where a part of the Yagura is bent and formed.

Effects of the invention (1) The structure is simple and the gripping force on the seat post is significantly increased compared to the conventional one. Further, the presence of the seat post fixing piece prevents the planar enlarged portion from deforming when tightening, and at the same time completely prevents the seat post from protruding from the Yagura.

(2) The seat post fixing piece can be provided separately, in which case material costs are significantly saved compared to folding and forming a part of the Yagura.

[Brief explanation of drawings]

Figure 1 is a plan view showing one example of implementing the present invention;
The figure is also a partially cutaway front view. The symbols in the drawings indicate the following members, respectively. 1...
Kikuza part, 2...Band part, 3...Enlarged part, 4...
Seat post, 5... Seat post fixing piece, 6...
...Yakura.

Claims (1)

[Scope of utility model registration request] A planar enlarged part in the axial direction is provided in the band part that is continuous with the chrysanthemum seat part and holds the seat post, and in the planar enlarged part, the two parts of the seat post fixing piece whose lower end is folded in half and whose upper end is formed at a right angle are provided. Yagura seat post mounting for bicycle saddle made by inserting and fixing the folded lower end.