WO2011134361A1

WO2011134361A1 - Vertical tube fixing structure

Info

Publication number: WO2011134361A1
Application number: PCT/CN2011/072966
Authority: WO
Inventors: 张世杰
Original assignee: Chang Shih-Chieh
Priority date: 2010-04-26
Filing date: 2011-04-19
Publication date: 2011-11-03
Also published as: CN201670324U

Abstract

A vertical tube fixing structure comprises an upper cover (30), a bolt (40) and a forcing assembly (70). The upper cover (30) is provided with a sleeve post (31) corresponding to the top edge of a front fork pipe (20) central hole (22), an annular abut shoulder (32) capable of being abutted to the top end of the vertical tube (10) and a screw head hole (33) penetrating vertically. The bolt (40) is provided with a bolt head (41) capable of being correspondingly positioned to the screw head hole (33) and a screw (42) capable of extending into the front fork vertical pipe (20) central hole (22). The forcing assembly (70) is provided with an annular block (71), and the annular block (71) is provided with an inner screw hole (710) for the combined screw (42) in a penetrating manner. Two lower cone sections (73) spaced in an increasing manner are upwardly extended corresponding to the two sides of periphery of the annular block (71), respectively. A positioning section (74) with equal spacing is arranged upwardly at the top part of each lower cone section (73). Two upper cone sections (75) spaced in a reducing manner are upwardly extended corresponding to the top end of the two positioning sections (74), respectively. The top parts of the upper cone sections (75) are connected to the bottom part of the upper cover (30). When the bolt (40) drives the forcing assembly (70) to spirally move toward the upper cover (30), the two positioning sections (74) are extended outward to tightly match the front fork pipe (20) central hole (22) in order to fix the vertical tube (10) and the front fork pipe (20) together.

Description

Vertical pipe fixing structure

技术领域Technical field

The invention relates to the technical field of bicycles, in particular to a standpipe fixing structure of a bicycle.

背景技术Background technique

Referring to FIG. 1, the inner hole 11 of the bicycle standpipe 10 is coaxially inserted into the top edge of the front fork riser 20, so that the bottom end of the standpipe 10 can be positioned by the ring block 21 protruding from the outer periphery of the front fork riser 20. The front fork can protrude from the front fork riser 20, and the front fork riser 20 has a middle hole 22, and then the vertical tube 10 and the front fork riser 20 are integrally fixed by a fixed structure.

The fixing structure is composed of an upper cover 30, a bolt 40, a nut 50 and a pressing ring 60; the upper cover 30 has a sleeve 31 which can be fitted to the top edge of the hole 22 in the front fork riser 20, a ring abutting shoulder 32 that can be pressed against the top end of the vertical pipe 10, a screw head hole 33 extending through the upper and lower sides; and the bolt 40 has a bolt head 41 corresponding to the screw head hole 33, and can extend into the front fork riser 20, the screw 42 of the middle hole 22; and the nut 50 is placed in the hole 22 of the front fork riser 20, the top edge thereof is formed with a shoulder portion 51, and an inner screw hole 52 for the combination of the screw 42 is disposed at a central axis position. The pressing ring 60 is inserted through the screw 42 so as to be positioned between the upper cover 30 and the nut 50. The pressing ring 60 has a snare 61 that can be positioned on the shoulder 51 and then extends upward on opposite sides of the snare 61. The lower tapered portion 62 is provided with a pitch which is gradually enlarged. The top end of the lower tapered portion 62 has an equally spaced positioning portion 63 upwardly, and a tapered tapered upper portion 64 is extended upwardly at the top end of the positioning portion 63 to form an upper tapered portion. The top end of the portion 64 can be adjacent to the bottom surface of the upper cover 30.

When the bolt 40 is rotated to drive the nut 50 to be screwed toward the upper cover 30, the nut 50 can tighten the pressing ring 60, so that the lower taper portion 62 and the upper taper portion 64 can be expanded by the positioning portion 63. For tight fitting to the hole 22 in the front fork riser 20, so that the standpipe 10 and the front fork riser 20 are integrally fixed.

However, this type of fixed structure has the following disadvantages:

First, too many components, resulting in high manufacturing costs;

Second, the nut 50 and the pressing ring 60 are separated, and cannot be arranged in a modular manner, except that the assembly efficiency is low, and when the upper cover 30 is removed, the parts are easily lost;

3. During the tightening of the bolt 40, a relative rotation occurs between the pressing ring 60 and the nut 50, so that the pressing ring 60 is moved upward by the moving movement positioning portion 63, so that the positioning portion 63 is tightly fitted to the front. The force of the hole 22 in the fork riser 20 is insufficient.

In view of this, after continuous research, experimentation and improvement, the designer finally developed a vertical tube fixing structure to improve the above-mentioned defects.

发明内容Summary of the invention

The object of the present invention is to provide a vertical pipe fixing structure which is simple in structure and easy to assemble and disassemble, and can strengthen the tight fitting force of the vertical pipe and the front fork riser.

In order to achieve the above object, the technical solution adopted by the present invention is:

The utility model relates to a vertical pipe fixing structure, which comprises: an upper cover, a sleeve which can be matched to the top edge of the middle fork riser, a ring abutting against the top end of the vertical pipe, and a top and bottom a screw head hole; a bolt having a bolt corresponding to the screw head hole, a screw extending into the middle hole of the front fork riser; and a pressing component housed in the hole of the front fork riser, a ring block, the ring block is provided with an inner screw hole for the combination of the screw, and a lower taper portion with a gradually increasing pitch is arranged on the outer circumference of the ring block, and the top end of the two lower taper portions is positioned upward. And an upper tapered portion having a tapered shape corresponding to the top end of the two positioning portions, wherein the top ends of the upper tapered portions are formed with an opening through which the screw passes, and can abut against the bottom surface of the upper cover.

The pressing component is connected with a horizontally flared wing between the outer circumference of the ring block and the lower cone portion.

The invention may also be a standpipe fixing structure, comprising: an upper cover having a sleeve which can be fitted to the top edge of the middle fork riser, and a ring abutting against the top end of the riser a screw head hole extending through the upper and lower sides; a bolt having a bolt corresponding to the screw head hole, a screw capable of extending into the middle hole of the front fork riser; and a forced insertion into the hole in the front fork riser The tensioning assembly has a ring block, and the ring block is provided with an inner screw hole for the combination of the screw, and a downwardly tapered lower taper portion is arranged on the outer circumference of the ring block, and the top end of the two lower taper portions is There is a positioning portion upwardly, and a tapered portion is formed on the top end of the two positioning portions, so that the top ends of the two upper tapered portions are formed with an opening for the screw to pass through, and are respectively extended at the top ends of the two upper tapered portions. There is a connection.

The connecting portion is arranged in an arc shape.

The upper cover incorporates a block that protrudes from the top surface of the upper cover.

The invention adopts the above structure, when the bolt drives the pressing component to be screwed toward the upper cover direction, the two positioning portions of the pressing component can be driven to expand, so that the bolt can be tightly fitted to the middle hole of the front fork riser, so that the vertical pipe, The front fork riser is fixed in one piece; in summary, the present invention has at least the following advantages:

1. The present invention reduces the conventional three components into two, so that the manufacturing cost is effectively reduced.

2. The pressing component of the invention integrates the traditional nut and the pressing ring into a modular structure, which can improve the assembly efficiency, and can effectively improve the loss of the parts when the upper cover is removed.

3. During the tightening of the bolt, the positioning part of the pressing component is more or less rotated at an angle of rotation, so that the force of the positioning portion tightly fitting the hole in the front fork riser is improved. .

附图说明DRAWINGS

Figure 1 is a schematic cross-sectional view of a conventional combination;

Figure 2 is a perspective exploded view of the present invention;

3A and 3B are schematic perspective views of the combination of the present invention;

4A and 4B are schematic views showing the action of fixing the vertical pipe to the front fork riser according to the present invention;

Figure 5 is a perspective exploded view of a second embodiment of the present invention;

Figure 6 is a perspective view showing a combination of a second embodiment of the present invention;

7A and 7B are schematic views showing the action of fixing a standpipe to a front fork riser according to a second embodiment of the present invention;

Figure 8 is a perspective exploded view of a third embodiment of the present invention;

Figure 9 is a schematic view of a third embodiment of the present invention for fixing a standpipe to a front fork riser.

主要元件符号说明Main component symbol description

10 vertical tube 11 inner hole

20 front fork riser 21 ring block 22 hole

30 upper cover 31 sets of columns 32 ring yoke

33 screw head hole 34 block

40 bolt 41 bolt 42 screw

50 nut 51 shoulder 52 hole

60 pressing ring 61 snare 62 under the cone

63 positioning portion 64 on the taper

70 tightening component 71 ring block 710 screw hole

72 wing portion 73 lower taper portion 74 positioning portion

75 upper taper 76 opening 77 connecting portion

具体实施方式detailed description

The present invention will be described in detail below in conjunction with the preferred embodiments and the accompanying drawings.

Referring to Figures 2 to 4, the present invention includes:

The upper cover 30 has a sleeve 31 which can be fitted to the top edge of the hole 22 of the front fork riser 20, a ring abutment 32 which can be pressed against the top end of the riser 20, and a screw head hole 33 extending through the upper and lower sides;

a bolt 40 having a bolt 41 corresponding to the screw head hole 33, and a screw 42 capable of extending into the hole 22 in the front fork riser 20;

A pressing assembly 70 is disposed in the hole 22 in the front fork riser 20, and has a ring block 71. The ring block 71 is provided with an inner screw hole 710 which can be combined with the screw 42 and is horizontally on both sides of the outer circumference. The outer portion of the two wing portions 72 is extended with a downwardly extending lower tapered portion 73, and the top ends of the two lower tapered portions 73 are correspondingly provided with positioning portions 74 of approximately equal spacing. The upper tapered portion 75 having a tapered shape is extended upwardly at the top end of the two positioning portions 74, so that the top end of the upper tapered portion 75 forms an opening 76 through which the screw 42 passes, and can abut against the bottom surface of the upper cover 30.

When the bolt 40 is rotated to drive the ring assembly 71 of the pressing assembly 70 to be screwed toward the upper cover 30, the upper and lower

tapered portions

75, 73 of the tensioning assembly 70 can be tightened, so that the two positioning portions 74 are expanded. It is used to tightly fit the hole 22 in the front fork riser 20, so that the standpipe 10 and the front fork riser 20 are integrally fixed.

With the above structure, the present invention has at least the following advantages:

2. The tensioning assembly 70 of the present invention integrates a conventional nut and a tightening ring into a modular structure. In addition to improving assembly efficiency, and when the upper cover 30 is removed, the problem of component loss can be effectively improved.

3. During the tightening of the bolt 40, the positioning portion 74 of the pressing assembly 70 is more or less rotated at an angle of rotation, so that the positioning portion 74 can be tightly fitted to the hole 22 in the front fork riser 20 The power has improved.

FIG. 5 to FIG. 7 disclose a second embodiment of the present invention. The embodiment further has an arc-shaped outwardly extending connecting portion 77 extending upward from the top end of the upper tapered portion 75 shown in FIG. 2, which can be integrated when the upper cover 30 is formed. The covering makes the upper cover 30 and the pressing assembly 70 integrated, so that the modular effect can be optimized to the best.

8 and 9 are a third embodiment of the present invention. The embodiment is mainly used to further integrate the pattern of the top surface of the upper cover 30 or the LOGO block 34 when the upper cover 30 is plastically formed, so as to achieve the desired indication. effect.

In summary, the structure of the present invention can improve many of the existing fixed structures. The above description is only a preferred embodiment of the present invention, and the scope of implementation cannot be limited thereto, that is, the rights according to the present invention are generally All changes and modifications made to the contents of the claims and the description should remain within the scope of the present invention.

Claims

1. A standpipe fixing structure, characterized in that:

An upper cover has a sleeve which can be matched to the top edge of the middle fork riser, a ring abutting shoulder which can be pressed against the top end of the vertical pipe, and a screw head hole extending through the upper and lower sides;

a bolt having a bolt that can be positioned corresponding to the hole of the screw head and a screw that can extend into the hole in the front fork riser;

A pressing component disposed in the hole in the front fork riser has a ring block, and the ring block is provided with an inner screw hole for the screw combination, and is correspondingly extended upward on both sides of the ring block a lower tapered portion having a pitch gradually extending, a top portion of the lower taper portion has a positioning portion upwardly, and a tapered portion having a tapered portion is formed at a top end of the two positioning portions, and a screw for forming a screw is formed at a top end of the upper taper portion The through opening passes through and can abut against the bottom surface of the upper cover.
2. The standpipe fixing structure according to claim 1, wherein the pressing assembly is provided with a horizontally flared wing portion between the outer circumference of the ring block and the lower taper portion.
3. A standpipe fixing structure, characterized in that:

An upper cover has a sleeve which can be matched to the top edge of the middle fork riser, a ring abutting shoulder which can be pressed against the top end of the vertical pipe, and a screw head hole extending through the upper and lower sides;

a bolt having a bolt that can be positioned corresponding to the hole of the screw head and a screw that can extend into the hole in the front fork riser;

A pressing component disposed in the hole in the front fork riser has a ring block, and the ring block is provided with an inner screw hole for the combination of the screw, and the spacing is gradually extended on both sides of the outer circumference of the ring block. An enlarged lower taper portion has a positioning portion at a top end of the two lower taper portions, and a tapered tapered upper portion is formed at a top end of the two positioning portions so that a top end of the upper taper portions is formed with a screw for passing The opening is extended at the top ends of the two upper tapered portions.
4. The standpipe fixing structure according to claim 3, wherein the connecting portion is flared and disposed.
The standpipe fixing structure according to claim 3, wherein the pressing assembly is provided with a horizontally flared wing portion between the outer circumference of the ring block and the lower taper portion.
The standpipe fixing structure according to claim 3, wherein the upper cover is combined with a block projecting from a top surface of the upper cover.