Seals for linear guides

Patent metadata

Field	Value
Publication number	US-10816037-B2
Application number	US-201916365493-A
Country	US
Kind code	B2
Filing date	Mar 26, 2019
Priority date	Sep 28, 2016
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A seal member for a linear guide including a guide rail and slider movably set on the guide rail through rolling elements, the seal member, attached to the slider, configured to seal an opening of a gap between the guide rail and slider, the seal member includes: fibers having been impregnated with rubber or resin, wherein a sliding contact part of said seal member, which is in sliding contact with the guide rail, is made of the fibers.

First claim

The invention claimed is:

1. A seal member for a linear guide including a guide rail and a slider configured to move along the guide rail via rolling elements, the seal member coupled to the slider and configured to seal an opening of a gap between the guide rail and the slider, the seal member comprising:
a plurality of stretchable fibers having gaps therebetween; and
a rubber material impregnated into the plurality of stretchable fibers,
wherein the gaps are filled with the rubber material and the plurality of stretchable fibers are bound together by the rubber material in a shape of a side of the guide rail, and
wherein a sliding contact part of the seal member, in sliding contact with the guide rail is made of the fibers impregnated with the rubber material.

2. A seal member for a linear guide including a guide rail and a slider configured to move along the guide rail via rolling elements, the seal member coupled to the slider and configured to seal an opening of a gap between the guide rail and the slider, the seal member comprising:
a reinforcing plate; and
a plurality of stretchable fibers having gaps therebetween and penetrated with rubber such that the plurality of stretchable fibers are impregnated by and bonded together by rubber in a shape of a guide-rail side, the plurality of stretchable fibers being affixed to the reinforcing plate,
wherein a sliding contact part of said seal member, which is in sliding contact with the guide rail, is made of the fibers.

3. A seal member for a linear guide including a guide rail and a slider configured to move along the guide rail via rolling elements, the seal member coupled to the slider and configured to seal an opening of a gap between the guide rail and the slider, the seal member comprising:
a layered structure, including:
a first layer made of stretchable fibers having gaps therebetween, the gaps penetrated with rubber such that the stretchable fibers are impregnated by and bonded together by rubber with a shape of a guide-rail side; and
a second layer made of a reinforcing plate,
wherein a sliding contact part of the seal member, in sliding contact with the guide rail is made of the layered structure.

4. The seal member for the linear guide according to claim 3 , wherein the layered structure further includes a third layer made of felt or foam material, and
the sliding contact part of the seal member, is made of the layered structure including the third layer.

5. A linear guide, comprising:
a guide rail having a side with a shape;
a slider configured to move along the guide rail via rolling elements; and
a seal member coupled to the slider with the seal member configured to seal an opening of a gap between the guide rail and the slider, the seal member including:
stretchable fibers having gaps therebetween, the gaps penetrated with rubber such that the stretchable fibers are impregnated by and bonded together by rubber in the shape of the side of the guide rail; and
a sliding contact part in sliding contact with the guide rail and made of the fibers.

6. A linear guide, comprising:
a guide rail;
a slider configured to move along the guide rail via rolling elements; and
a seal member coupled to the slider with the seal member configured to seal the opening of the gap between the guide rail and slider, the seal member including:
a reinforcing plate;
stretchable fibers having gaps therebetween, the gaps penetrated with rubber such that the stretchable fibers are impregnated by and bonded together by rubber in a shape of a side of the guide rail, the stretchable fibers being affixed to the reinforcing plate; and
a sliding contact part in sliding contact with the guide rail made of the stretchable fibers.

7. A linear guide, comprising:
a guide rail;
a slider configured to move along the guide rail via rolling elements; and
a seal member coupled to the slider with the seal member configured to seal an opening of a gap between the guide rail and the slider, the seal member including:
a layered structure, including:
a first layer made of stretchable fibers having gaps therebetween, the gaps penetrated with rubber such that the fibers are impregnated by and bonded together by rubber in the gaps with a shape of a side of the guide rail; and
a second layer made of a reinforcing plate; and

a sliding contact part in sliding contact with the guide rail and made of the layered structure.

Assignees

• Nitta Corp
• Thk Co Ltd

Inventors

• DEI Takehito
• Ishizaki Yoji
• Kiyohara Yoshiharu
• Aoki Kenichiro
• Aoki Yasuhiro

Classifications

• F16C29/086 Primary

  Seals being essentially U-shaped, e.g. for a U-shaped carriage · CPC title

• Y10S277/944

  Elastomer or plastic · CPC title

• F16C29/08

  Arrangements for covering or protecting the ways {(protective coverings for parts of machine tools B23Q11/08)} · CPC title

• F16C29/0633

  with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides · CPC title

• F16C29/088 Primary

  Seals extending in the longitudinal direction of the carriage or bearing body · CPC title