Linear movement guide device

Patent metadata

Field	Value
Publication number	US-2019315473-A1
Application number	US-201716469419-A
Country	US
Kind code	A1
Filing date	Dec 15, 2017
Priority date	Dec 20, 2016
Publication date	Oct 17, 2019
Grant date	—

Abstract

This linear movement guide device is provided with a track rail, a slider block attached to the track rail so as to be capable of movement relative thereto via a plurality of rolling bodies, and a position-determining pin which restricts the relative movement between the slider block and the track rail, wherein: the track rail is provided with a securing hole for securing the track rail to a base member, and a position-determining hole into which the position-determining pin is inserted; the slider block is provided with a rocker bearing part having an attachment hole into which a rocker shaft is inserted, and also provided with a connecting hole into which the position-determining pin is inserted; and the attachment hole and the connecting hole are each positioned in a location that avoids the center of the slider block in the lengthwise direction thereof.

First claim

1 . A linear movement guide device comprising:
a track rail; a movable body which is attached to the track rail so as to be capable of movement relative thereto via a plurality of rolling bodies; and a positioning pin which restricts the relative movement between the movable body and the track rail, wherein the track rail is provided with a plurality of securing holes configured to fix the track rail to a base member, which are disposed at predetermined intervals in a longitudinal direction thereof, and a positioning hole into which the positioning pin is inserted, the movable body is provided with a rocker bearing part having an attachment hole into which a rocker shaft configured to rockably connect a guided object is inserted, and an insertion hole into which the positioning pin is inserted, and the attachment hole and the insertion hole are disposed at positions that avoid a center of the movable body in the longitudinal direction.

2 . The linear movement guide device according to claim 1 ,
wherein a length of the movable body in the longitudinal direction is longer than a distance between central axes of the securing holes that are positioned at both ends in the longitudinal direction among three securing holes disposed in series, and a central axis of the insertion hole is positioned between the securing holes adjacent to each other in the longitudinal direction.

3 . The linear movement guide device according to claim 2 , wherein a central axis of the attachment hole is positioned between the securing holes adjacent to each other in the longitudinal direction, which is different from being positioned between the securing holes where the central axis of the insertion hole is positioned.

4 . The linear movement guide device according to claim 1 ,
wherein, when viewed in a cross-sectional view perpendicular to the longitudinal direction, an internal space and a slit which communicates the internal space with the outside of the base member are formed in the base member, and the track rail is attached to the base member via an inner attachment member disposed in the internal space.

5 . The linear movement guide device according to claim 1 , wherein the rocker bearing part is connected to a rear leg of a passenger seat for an aircraft via the rocker shaft.

Assignees

• Thk Co Ltd

Inventors

• Mochizuki Hiroaki
• Hosaka Eiji
• Kuribayashi Hiroomi
• Minami Toshiro
• Kaneko Akito

Classifications

• F16C29/10

  Arrangements for locking the bearings · CPC title

• B64D11/0648

  Lower frame constructions · CPC title

• B60N2/06

  slidable (B60N2/12 {, B60N2/2209} take precedence) · CPC title

• B64D11/0696 Primary

  Means for fastening seats to floors, e.g. to floor rails · CPC title

• B64C1/20 Primary

  specially adapted for freight · CPC title