MISALIGNMENT DETECTING DEVICE FOR SPOKED WHEEL

• US 20180306572A1
• Filed: 07/27/2016
• Published: 10/25/2018
• Est. Priority Date: 12/24/2015
• Status: Active Grant

• Current Assignee: Hozan Tool Industrial Co. Ltd. (Hozan Kogu Seisakusho KK)
• Original Assignee: Hozan Tool Industrial Co. Ltd. (Hozan Kogu Seisakusho KK)
• Inventors: HARA, Tomomi, UDAGAWA, Hiroshi, KURAKANE, Rikio, SHIMOKAWA, Saburo, OKUNO, Masahiro
• Granted Patent: US 10,527,408 B2
• Time in Patent Office: Days
• CPC Class Codes: B60B 2900/541 Servicing
• CPC Class Codes: B60B 31/02 for tightening or straightening wire spokes in situ; for extracting spokes from wheels
• CPC Class Codes: G01B 11/16 for measuring the deformation in a solid, e.g. optical strain gauge
• CPC Class Codes: G01M 1/14 Determining imbalance G01M1/30 takes precedence

Abstract

There is provided a misalignment detecting device being capable of detecting and correcting distortion of a spoked wheel with a simple configuration. The misalignment detecting device includes: supporting frames 12a, 12b to which the spoked wheel 30 to be inspected is set; a first light source 13 that is attached to the supporting frame and irradiates first detected light to the spoked wheel set on the supporting frame in an axial direction of the spoked wheel; a first line sensor 14 that is attached to the supporting frame so as to be capable of receiving the first detected light and detects radial distortion of the spoked wheel without contact based on the received first detected light; a second light source 15 that is attached to the supporting frame and irradiates second detected light to the spoked wheel set on the supporting frame in a direction intersecting the axial direction of the spoked wheel; and a second line sensor 16 that is attached to the supporting frame so as to be capable of receiving the second detected light and detects axial distortion of the spoked wheel without contact based on the received second detected light.

Claims

1. A misalignment detecting device of a spoked wheel, including:

a supporting frame to which the spoked wheel to be inspected is set;

a first light source that is attached to the supporting frame and irradiates first detected light to the spoked wheel set on the supporting frame in an axial direction of the spoked wheel;

a first line sensor that is attached to the supporting frame so as to be capable of receiving the first detected light and detects radial distortion of the spoked wheel without contact based on the received first detected light;

a second light source that is attached to the supporting frame and irradiates second detected light to the spoked wheel set on the supporting frame in a direction intersecting the axial direction of the spoked wheel; and

a second line sensor that is attached to the supporting frame so as to be capable of receiving the second detected light and detects axial distortion of the spoked wheel without contact based on the received second detected light.

2. The misalignment detecting device of the spoked wheel according to claim 1, wherein the spoked wheel includes a huh serving as a rotation center, a rim surrounding a circumference of the hub with a predetermined interval, and a plurality of spokes one ends of which are secured to the hub and other ends of which are connected to the rim,

the first line sensor detects a radial distortion of the rim to the hub and includes a plurality of photoelectric conversion elements arranged linearly in the radial direction of the rim, and

the second line sensor detects an axial distortion of the rim to the hub and includes a plurality of photoelectric conversion elements arranged linearly in a direction intersecting the radial direction of the rim.

3. The misalignment detecting device of the spoked wheel according to claim 2, wherein each of the first line sensor and the second line sensor includes a pinhole lens for forming on a photoelectric conversion element surface an image of an object by the detected light.

4. The misalignment detecting device of the spoked wheel according to claim 1, wherein the first line sensor outputs a trigger that is associated with a position of the rim to which each of the other ends of the plurality of spokes is connected and that instructs reading of detected light at the associated position.

5. The misalignment detecting device of the spoked wheel according to claim 4, further including a reference position sensor detecting a reference position of the rim of the spoked wheel set on the supporting frame, and

processing means imparting, based on an output of the reference position sensor, a spoke number to the position associated to the rim position to which each of the other ends of the plurality of spokes is connected.

8. The misalignment detecting device of the spoked wheel according to claim 2, wherein the first line sensor outputs a trigger that is associated with a position of the rim to which each of the other ends of the plurality of spokes is connected and that instructs reading of detected light at the associated position.

9. The misalignment detecting device of the spoked wheel according to claim 3, wherein the first line sensor outputs a trigger that is associated with a position of the rim to which each of the other ends of the plurality of spokes is connected and that instructs reading of detected light at the associated position.

10. A misalignment detection correcting device of a spoked wheel, wherein the misalignment detecting device of the spoked wheel according to claim 1 is further provided with processing means that performs predetermined calculation based on outputs of the first line sensor and the second line sensor and an output of the processing means and outputs for each spoke an adjustment value by which a tension is to be adjusted.

6. A misalignment detecting device of a spoked wheel, including:

a supporting frame to which the spoked wheel to be inspected is set;

a first light source that is attached to the supporting frame and irradiates first detected light to the spoked wheel set on the supporting frame in an axial direction of the spoked wheel; and

a first line sensor that is attached to the supporting frame so as to be capable of receiving the first detected light and detects radial distortion of the spoked wheel without contact based on the received first detected light.

7. A misalignment detection correcting device of a spoked wheel, wherein the misalignment detecting device of the spoked wheel according to claim 6 is further provided with processing means that performs predetermined calculation based on outputs of the first line sensor and the second line sensor and an output of the processing means and outputs for each spoke an adjustment value by which a tension is to be adjusted.