Sensor and movement guide device including the same sensor

Patent metadata

Field	Value
Publication number	US-11953345-B2
Application number	US-202017787798-A
Country	US
Kind code	B2
Filing date	Dec 16, 2020
Priority date	Dec 26, 2019
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

To provide a sensor that can be downsized in order to ensure a stroke of a moving member when the sensor is mounted on a track member, and a movement guide device including the sensor. A sensor that is attached to a movement guide device having a track member extending in a longitudinal direction and a moving member attached to the track member in such a manner that the moving member is movable in the longitudinal direction includes: a housing that houses a sensor substrate; a shielded cable connected to the sensor substrate; and a cable bushing that holds and secures the shielded cable to the housing. The cable bushing has a conduction hole that allows the housing and the shielded cable to be electrically connected to each other, and the housing has a conduction part that can be inserted into the conduction hole.

First claim

The invention claimed is:

1. A sensor that is attached to a movement guide device having a track member extending in a longitudinal direction and a moving member attached to the track member in such a manner that the moving member is movable in the longitudinal direction, comprising:
a housing that houses a sensor substrate; a shielded cable connected to the sensor substrate; and a cable bushing that holds and secures the shielded cable to the housing,
wherein the cable bushing has a conduction hole that allows the housing and the shielded cable to be electrically connected to each other, and
the housing has a conduction part that can be inserted into the conduction hole.

2. The sensor according to claim 1 , wherein at least two or more conduction holes are formed.

3. The sensor according to claim 1 , wherein an end face of the cable bushing opposed to the sensor substrate is provided with a wall part having an insertion hole into which a wire in the shielded cable can be inserted.

4. The sensor according to claim 1 , wherein the housing is formed by a separable body divided into at least two or more parts.

5. The sensor according to claim 1 , wherein the housing has a filling hole formed therein that allows a sensor substrate housing part that houses the sensor substrate to be filled with a synthetic resin.

6. The sensor according to claim 1 , wherein the housing is made of a metal, and at least a part of the housing excluding the conduction part is subjected to an insulation treatment.

7. The sensor according to claim 1 , wherein a wire connection part where the shielded cable and the sensor substrate are connected by wire is formed at an end of the sensor substrate opposite to an end face of the sensor substrate opposed to the cable bushing.

8. A movement guide device, comprising the sensor according claim 1 .

Assignees

• Thk Co Ltd

Inventors

• Sugiura Masashi

Classifications

• G01D11/245 Primary

  Housings for sensors · CPC title

• G01D11/24 Primary

  Housings {; Casings for instruments} · CPC title

• F16C41/00

  Other accessories, {e.g. devices integrated in the bearing not relating to the bearing function as such} · CPC title

• F16C29/00

  Bearings for parts moving only linearly (F16C32/06 takes precedence; incorporated in flexible shafts F16C1/28 {; parts of bearings in general and special methods for making bearings or parts thereof in general F16C33/00}) · CPC title

• F16C29/0642

  with four rows of balls · CPC title