Traveling vehicle

Patent metadata

Field	Value
Publication number	US-11964639-B2
Application number	US-202017261989-A
Country	US
Kind code	B2
Filing date	Jun 24, 2020
Priority date	Aug 1, 2019
Publication date	Apr 23, 2024
Grant date	Apr 23, 2024

Abstract

A traveling vehicle includes a mechanical brake link mechanism to transmit operation of a brake pedal to a brake device housed in a case and to control brakes of right and left rear wheels. The brake link mechanism includes a pair of brake rods extending in a front-back direction at sides of the case. A guard assembly includes a pair of guards extending in the front-back direction below the pair of brake rods. The pair of brake rods overlaps the pair of guards in a vertical direction. In a side view of the traveling vehicle, the pair of brake rods includes a higher portion positioned above a lower surface of the case to be distanced by a predetermined interval or more and positioned above the lower surface of the case, and a lower portion positioned below the higher portion. The pair of guards overlaps at least all of the lower portions in the vertical direction.

First claim

What is claimed is:

1. A traveling vehicle comprising:
a mechanical brake link mechanism to transmit operation of a brake pedal to a brake device which is housed in a case and controls brakes of right and left rear wheels; wherein
the brake link mechanism includes a pair of brake rods extending in a front-back direction at sides of the case;
a guard assembly including a pair of guards extending in the front-back direction below the pair of brake rods is provided;
the pair of brake rods overlaps the pair of guards in a vertical direction;
in a side view of the traveling vehicle, the pair of brake rods includes:
a higher portion positioned above a lower surface of the case to be distanced by a predetermined interval or more and positioned above the lower surface of the case; and
a lower portion positioned below the higher portion; and

the pair of guards overlaps at least all of the lower portions in the vertical direction.

2. The traveling vehicle according to claim 1 , wherein
the pair of guards includes a short guard including a length shorter in the front-back direction than a length of one brake rod of the pair of brake rods and overlapping only a portion of the one brake rod in the vertical direction;
a front edge of the short guard is positioned rearward of a front edge of the one brake rod;
the traveling vehicle includes an extension extending laterally from the case at a position anterior to the front edge of the short guard; and
the extension overlaps the one brake rod in the vertical direction below the one brake rod.

3. The traveling vehicle according to claim 2 , wherein the higher portion is positioned above the extension.

4. The traveling vehicle according to claim 3 , wherein
the pair of guards includes a long guard longer in the front-back direction than the short guard;
the guard assembly includes a plurality of supports fixed to the case;
the plurality of supports includes a support to support the long guard and a support to support the short guard; and
a number of the supports supporting the long guard is larger than a number of the supports supporting the short guard.

5. The traveling vehicle according to claim 4 , wherein
each of the plurality of supports is fastened to the case; and
a total number of fasteners of the supports supporting the long guard is larger than a total number of fasteners of the supports supporting the short guard.

6. The traveling vehicle according to claim 5 , wherein
the support includes a first plane portion including a plane fixed in contact with the case, a second plane portion coupled to the first plane portion and including a plane fixed in contact with the guard, and a rib portion attached at a right angle to each of the first plane portion and the second plane portion; and
a number of rib portions of the support supporting the short guard is larger than a number of rib portions of the support supporting the long guard.

7. The traveling vehicle according to claim 4 , wherein
the support includes a first plane portion including a plane fixed in contact with the case, a second plane portion coupled to the first plane portion and including a plane fixed in contact with the guard, and a rib portion attached at a right angle to each of the first plane portion and the second plane portion; and
a number of rib portions of the support supporting the short guard is larger than a number of rib portions of the support supporting the long guard.

8. The traveling vehicle according to claim 2 , wherein
the pair of guards includes a long guard longer in the front-back direction than the short guard;
the guard assembly includes a plurality of supports fixed to the case;
the plurality of supports includes a support to support the long guard and a support to support the short guard; and
a number of the supports supporting the long guard is larger than a number of the supports supporting the short guard.

9. The traveling vehicle according to claim 8 , wherein
each of the plurality of supports is fastened to the case; and
a total number of fasteners of the supports supporting the long guard is larger than a total number of fasteners of the supports supporting the short guard.

10. The traveling vehicle according to claim 9 , wherein
the support includes a first plane portion including a plane fixed in contact with the case, a second plane portion coupled to the first plane portion and including a plane fixed in contact with the guard, and a rib portion attached at a right angle to each of the first plane portion and the second plane portion; and
a number of rib portions of the support supporting the short guard is larger than a number of rib portions of the support supporting the long guard.

11. The traveling vehicle according to claim 8 , wherein
the support includes a first plane portion including a plane fixed in contact with the case, a second plane portion coupled to the first plane portion and including a plane fixed in contact with the guard, and a rib portion attached at a right angle to each of the first plane portion and the second plane portion; and
a number of rib portions of the support supporting the short guard is larger than a number of rib portions of the support supporting the long guard.

12. A traveling vehicle comprising:
a mechanical brake link mechanism to transmit operation of a brake pedal to a brake device which is housed in a case and controls brakes of right and left rear wheels; wherein
the brake link mechanism includes a pair of brake rods extending in a front-back direction at sides of the case;
a guard assembly including a pair of guards extending in the front-back direction below the pair of brake rods is provided;
the pair of brake rods overlaps the pair of guards in a vertical direction;
the pair of guards includes a short guard and a long guard longer in the front-back direction than the short guard; and
the long guard overlaps all portions of one brake rod of the pair of brake rods in the vertical direction.

13. The traveling vehicle according to claim 12 , further comprising:
a front working machine including a working unit to perform work and a mounting frame to mount the working unit on a vehicle body; wherein
a portion of the one brake rod overlaps the mounting frame in the vertical direction; and
the long guard extends forward while curving upward from the lower side so as to be disposed between a portion of the one brake rod and the mounting frame.

14. The traveling vehicle according to claim 13 , wherein
the guard includes a plurality of supports fixed to the case;
the plurality of supports includes a support to support the long guard and a support to support the short guard; and
a number of supports supporting the long guard is larger than a number of supports supporting the short guard.

15. The traveling vehicle according to claim 14 , wherein
each of the plurality of supports is fastened to the case; and
a total number of fasteners of the supports supporting the long guard is larger than a total number of fasteners of the supports supporting the short guard.

16. The traveling vehicle according to claim 14 , wherein
the support includes a first plane portion including a plane fixed in contact with the case, a second plane portion coupled to the first plane portion and including a plane fixed in contact with the guard, and a rib portion attached at a right angle to each of the first plane portion and the second plane portion; and
a number of rib portions of the support supporting the short guard is larger than a number of rib portions of the supp

Assignees

• Kubota Kk

Inventors

• Nakagawa Takateru
• Hiwatashi Akira
• Oizumi Satoshi

Classifications

• B60T11/04 Primary

  transmitting mechanically · CPC title

• B60T7/04

  foot actuated · CPC title

• F16D23/12

  Mechanical clutch-actuating mechanisms arranged outside the clutch as such (specific for combined clutches F16D21/00; mechanisms specific for synchronisation F16D23/02) · CPC title

• F16D65/28

  arranged apart from the brake · CPC title

• B62D49/06 Primary

  adapted for multi-purpose use · CPC title