Sensor for measuring shear force and dummy for measuring shear force using the same

Patent metadata

Field	Value
Publication number	US-10330576-B2
Application number	US-201715690761-A
Country	US
Kind code	B2
Filing date	Aug 30, 2017
Priority date	Dec 13, 2016
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A sensor for measuring shear force and a dummy for testing a vehicle using the same are provided herein. A sensor for measuring shear force which is configured to quantitatively accurately measure shear force applied to a human body who sits on a vehicle seat, and a dummy for measuring shear force using the sensor are provided, wherein the sensor for measuring shear force includes an upper block, an intermediate block and a lower block and is configured such that a first strain gauge is mounted upright between the upper block and the intermediate block and a second strain gauge is mounted upright between the intermediate block and the lower block so that the shear force can be accurately measured without being affected by horizontal tensile force.

First claim

What is claimed is:

1. A sensor for measuring a shear force, comprising:
an upper block including an upper horizontal plate, an intermediate block including an intermediate horizontal plate, and a lower block including a lower horizontal plate, wherein the upper block, the intermediate block and the lower block are stacked vertically and assembled to be separated apart from one another by column structures;
a first strain gauge placed upright with respect to the upper horizontal plate of the upper block and the intermediate horizontal plate of the intermediate block between the upper horizontal plate of the upper block and the intermediate horizontal plate of the intermediate block and oriented in an X-axis direction; and
a second strain gauge placed upright with respect to the intermediate horizontal plate and the lower horizontal plate between the intermediate horizontal plate of the intermediate block and the lower horizontal plate of the lower block and oriented in a Y-axis direction.

2. The sensor according to claim 1 , wherein an upper column is integrally formed on a lower surface of the upper horizontal plate and is brought into contact with an upper surface of the intermediate horizontal plate, and a first intermediate column is integrally formed on the upper surface of the intermediate horizontal plate and is brought into contact with the lower surface of the upper horizontal plate.

3. The sensor according to claim 1 , wherein a second intermediate column is integrally formed on a lower surface of the intermediate horizontal plate and is brought into contact with an upper surface of the lower horizontal plate, and a first lower column and a second lower column are integrally formed on the upper surface of the lower horizontal plate and are brought into contact with the lower surface of the intermediate horizontal plate.

4. The sensor according to claim 1 , wherein a first end portion of the first strain gauge is brought into contact with and assembled with a front surface of an upper column of the upper block, and a second end portion of the first strain gauge is brought into contact with and assembled with a rear surface of a first intermediate column of the intermediate block.

5. The sensor according to claim 4 , wherein the upper column and the first intermediate column have the same height as each other and a height of the first strain gauge is less than the height of the upper column and the first intermediate column.

6. The sensor according to claim 1 , wherein a first end portion of the second strain gauge is brought into contact with and assembled with a right side surface of a second intermediate column of the intermediate block, and a second end portion of the second strain gauge is brought into contact with and assembled with a left side surface of a first lower column of the lower block.

7. The sensor according to claim 6 , wherein the second intermediate column, the first lower column md a second lower column have the same height as one another and a height of the second strain gauge is less than the height of the second intermediate column, the first lower column and the second lower column.

8. The sensor according to claim 1 , wherein a signal line wiring hole is formed in the intermediate horizontal plate of the intermediate block so that a signal line of the second strain gauge is configured to pass through the signal line wiring hole.

9. The sensor according to claim 1 , wherein a circular support plate is attached on an upper surface of the upper block, and a circular silicon contact plate is attached on the circular support plate.

10. A dummy for measuring a shear force, comprising:
an upper body dummy and a lower body dummy to each of which the sensor for measuring the shear force according to claim 1 is separably mounted; and
a hinge connector connecting the upper body dummy to the lower body dummy using a hinge.

11. The dummy according to claim 10 , wherein each of the upper body dummy and the lower body dummy includes a plurality of insertion holes, into each of which the sensor for measuring the shear force is configured to be inserted and fixed, and each of which is formed in a concave shape in a portion thereof making contact with a surface of a vehicle seat.

12. The dummy according to claim 11 , wherein a signal line lead-out hole is formed in a portion of an internal wall of each of the insertion holes so that a signal line of the sensor for measuring the shear force is configured to be drawn out through the signal line lead-out hole.

13. The dummy according to claim 11 , wherein seventeen or more insertion holes are formed in the upper body dummy at positions corresponding to a spine line thereof, opposite sides of the spine line, and portions thereof making contact with side bolsters of a seatback, and fifteen or more insertion holes are formed in the lower body dummy at positions corresponding to a hip portion thereof, both thigh lines, and portions thereof making contact with side bolsters of a seat cushion.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Univ Industry Foundation Yonsei Univ Wonju Campus

Inventors

• Kang Tae Uk
• Kim Han Sung
• Kim Seong Guk
• Kim Dong Hyun
• Hwang Dong Hyun
• Lee Han A
• Song Ye Eun

Classifications

• B60N2002/0268

  Operations & Transport · mapped topic

• G09B23/06

  for physics · CPC title

• G01L5/0052

  measuring forces due to impact (G01L5/0061, G01L5/14 take precedence; impact testing of structures G01M7/08; impact testing of material G01N3/00) · CPC title

• G01M17/0078

  Shock-testing of vehicles · CPC title

• G01N3/24 Primary

  by applying steady shearing forces (G01N3/26, G01N3/28 take precedence) · CPC title