DE202006011750U1 - Positioning device for ball bearing cap used in e.g. bicycle, has waterproof positioning ring supported on opening of bearing cap and on auxiliary positioning ring inside bearing cap - Google Patents

Abstract

A waterproof positioning ring (11) with sealing function is supported on the opening of a bearing cap (12) and on top of an auxiliary positioning ring (13) inside the cap. The cap is supported close to the shaft mounted to a front fork. The waterproof positioning ring also forms an annular groove (112) engaged by the bearing cap, and ribs (113) engaged to the auxiliary positioning ring.

Description

technical area

The Invention relates to a positioning of a bearing cap for ball bearings, which uses a watertight positioning ring, the same time a Positioning and sealing function has.

State of technology

Between the steerer of the front fork and the head tube of the bicycle is usually a ball bearing provided so that the handlebar are rotated freely can. To prevent ingress of water and dust into the bearing body avoid, the ball bearing is provided with a bearing cap. The conventional Positioning of this bearing cap is complicated, so that the Installation is difficult and the costs are high.

Task of invention

Of the Invention is based on the object, a positioning of a Bearing cover for To provide ball bearings, which has a simple structure.

These The object is achieved by the positioning of a bearing cap according to the invention for ball bearings solved, which consists of a watertight positioning ring, a bearing cap and an auxiliary positioning ring, wherein the waterproof positioning ring on the outside engages with the bearing cap and is tight on the inside rests on the steerer of the front fork, and with the underside is inserted into the auxiliary positioning ring, whereby the bearing cap is positioned.

Of the Positioning ring has a flange on the top, the on the bearing cap rests, whereby the bearing cap is sealed.

Therefore the waterproof positioning ring simultaneously has a positioning and sealing function.

Short description the drawings

1 an exploded view of the invention,

2 an exploded view of the invention in section,

3 a sectional view of the invention,

4 a sectional view of the invention in use.

Ways to execute the invention

Like from the 1 to 3 is apparent, the invention consists of a waterproof positioning ring ( 11 ), a bearing cap ( 12 ), an auxiliary positioning ring ( 13 ) and a bearing body ( 20 ). The bearing body ( 20 ) comprises an outer ring ( 21 ), Balls ( 22 ), Positioning rings ( 23 ) and an inner ring ( 24 ). The bearing body ( 20 ) is connected to the outer ring ( 21 ) in the steerer tube of the front fork of the bicycle. The outer ring ( 21 ) forms a career ( 211 ) for the balls ( 22 ). Due to the positioning rings ( 23 ) and the inner ring ( 24 ) the balls ( 22 ) in the outer ring ( 21 ). Through the bearing body ( 20 ), the handlebar of the bike can be rotated freely. The structure of the bearing body ( 20 ) is known and will therefore not be described in detail here.

The waterproof positioning ring ( 11 ) is made of plastic or other materials, has an elasticity and can in the bearing cap ( 12 ) fit. The positioning ring ( 11 ) has a flange at the top ( 111 ), on the outside an annular groove ( 112 ) and at the bottom ribs ( 113 ). Into the ring groove ( 112 ), the bearing cap ( 12 ) intervene. Through the ribs ( 113 ) the connection of the positioning ring ( 11 ) with the auxiliary positioning ring ( 13 ) strengthened. The inner diameter of the positioning ring ( 11 ) can be selected according to the diameter of the steerer of the front fork, which fits tightly into the positioning ring ( 11 ) fits.

The bearing cover ( 12 ) is conical and forms an interior in which the bearing body ( 20 ) to prevent water and dust from entering the bearing body ( 20 ) to avoid. The bearing cover ( 12 ) has an opening on the top and bottom, the bottom opening being larger than the top opening. The wall of the upper opening of the bearing cap ( 12 ) forms a locking part ( 121 ), which is in the annular groove ( 112 ) of the positioning ring ( 11 ) and has a thickness corresponding to the width of the annular groove ( 112 ) corresponds.

The auxiliary positioning ring ( 13 ) has on the inside a connecting element ( 131 ), which may be formed by a thread or a knurl and serves to reinforce the connection with the fork sheep. In the upper opening of the auxiliary positioning ring ( 13 ), the positioning ring ( 11 ), wherein the connector through the ribs ( 13 ) of the positioning ring ( 11 ) is strengthened. Through the positioning ring ( 11 ) the bearing cap ( 12 ) Stable on the bearing body ( 20 ).

How out 4 is apparent during assembly on the bearing body ( 20 ) first the auxiliary positioning ring ( 13 ) through the Verbindungsele ment ( 131 ) on the steerer tube of the front fork ( 31 ) attached. Subsequently, the locking part engages ( 121 ) of the bearing cap ( 12 ) in the annular groove ( 112 ) of the positioning ring ( 11 ) one. Then the bearing cap ( 112 ) around the steerer tube of the front fork ( 31 ) and covers the bearing body ( 20 ), which around the head tube ( 32 ) is placed. The inside of the positioning ring ( 11 ) close to the steerer tube of the front fork ( 31 ) at. Through the ribs ( 113 ) the connection of the positioning ring ( 11 ) with the auxiliary positioning ring ( 13 ) strengthened. Therefore, the bearing cap ( 12 ) stably positioned.

The waterproof positioning ring ( 11 ) not only the bearing cap ( 12 ) but also through the flange ( 111 ) located on the bearing cap ( 12 ), the bearing cap ( 12 ) seal. Therefore, entry of water and dust into the bearing body ( 20 ) be avoided.

The The above description represents only a preferred embodiment of the invention and should not be used as a definition of boundaries and serve the scope of the invention. All equivalent changes and modifications are included to the scope of this invention.

by virtue of the above facts, the invention corresponds in its availability, Progressiveness and novelty fully on the requirements for a utility model.

Claims (5)

Positioning of a bearing cap for ball bearings consisting of a watertight positioning ring ( 11 ), a bearing cap ( 12 ) and an auxiliary positioning ring ( 13 ), wherein the waterproof positioning ring ( 11 ) on the outside with the bearing cap ( 12 ) is engaged and on the inside close to the steerer of the front fork ( 31 ) and with the underside in the auxiliary positioning ring ( 13 ), whereby the positioning ring ( 11 ) simultaneously has a positioning and sealing function. Positioning according to claim 1, characterized in that the waterproof positioning ring ( 11 ) on the outside an annular groove ( 112 ), in which the bearing cap ( 12 ) intervenes. Positioning according to claim 1, characterized in that the waterproof positioning ring ( 11 ) at the bottom ribs ( 113 ), through which the connection of the positioning ring ( 11 ) with the auxiliary positioning ring ( 13 ) is strengthened. Positioning according to claim 1, characterized in that the bearing cover ( 12 ) is conical and forms an interior, in which the bearing body ( 20 ), the bearing cap ( 12 ) has on the top and bottom each having an opening, wherein the upper opening is smaller and a locking part ( 121 ) formed in the annular groove ( 112 ) of the positioning ring ( 11 ) can intervene. Positioning according to claim 1, characterized in that the positioning ring ( 11 ) at the top a flange ( 111 ) owns.