Stay arm for a vehicle cab

Patent metadata

Field	Value
Publication number	US-12017705-B2
Application number	US-202117506049-A
Country	US
Kind code	B2
Filing date	Oct 20, 2021
Priority date	Dec 7, 2020
Publication date	Jun 25, 2024
Grant date	Jun 25, 2024

Abstract

A vehicle includes a support assembly extending between a chassis and a cab. The support assembly includes a first bracket coupled to the chassis, a second bracket coupled to the cab, a stay arm having a first end coupled to the first bracket and an opposing second end, and a locking assembly. The stay arm defines a locking interface between the first end and the opposing second end. The locking assembly includes a slide, an actuator, a release arm, and a pawl. The slide is translatable along the stay arm. The slide defines a first interface coupled to the second bracket, a second interface coupled to the actuator, and a third interface. The release arm is coupled to the actuator and the third interface. The pawl is coupled to release arm at the third interface. The pawl selectively engages with the locking interface based on a configuration of the actuator.

First claim

The invention claimed is:

1. A vehicle comprising:
a chassis;
a cab pivotably coupled to the chassis, the cab repositionable between a lowered position and a raised position; and
a support assembly extending between the chassis and the cab, the support assembly including:
a first bracket coupled to the chassis;
a second bracket coupled to the cab;
a stay arm having a first stay arm end and an opposing second stay arm end, the first stay arm end coupled to the first bracket, the stay arm defining a locking interface between the first stay arm end and the opposing second stay arm end, the locking interface including one or more notches; and
a locking assembly coupled to the stay arm, the locking assembly including:
a slide translatable along the stay arm between the first stay arm end and the opposing second stay arm end, the slide defining a first interface, a second interface, and a third interface, the first interface coupled to the second bracket;
an actuator having a first actuator end and a second actuator end, the first actuator end coupled to the third interface of the slide;
a release arm having a first release arm end and a second release arm end, the first release arm end coupled to the second actuator end, the second release arm end coupled to the second interface of the slide; and
a pawl coupled to the second release arm end, the pawl positioned to engage with the locking interface when the actuator is in a first configuration and disengage from the locking interface when the actuator is in a second configuration.

2. The vehicle of claim 1 , wherein the slide defines a channel that receives the stay arm.

3. The vehicle of claim 2 , wherein the first interface is a first flange that extends downward from a first slide end of the slide and beneath the stay arm, and wherein the first flange defines a first aperture that pivotably couples the slide to the second bracket.

4. The vehicle of claim 3 , wherein the second interface is a second flange that extends downward from an opposing second slide end of the slide and beneath the stay arm, and wherein the second flange defines a second aperture that receives the second release arm end of the release arm such that the pawl is at least partially positioned within the channel.

5. The vehicle of claim 4 , wherein an orientation of the pawl is fixed relative to the release arm.

6. The vehicle of claim 5 , wherein the one or more notches include a plurality of notches.

7. The vehicle of claim 6 , wherein an interface between the first release arm end of the release arm and the second actuator end is spring biased such that the pawl ratchets as the slide translates toward the opposing second stay arm end and across the plurality of notches.

8. The vehicle of claim 4 , wherein the third interface is a mount that extends upward from the first slide end of the slide and above the stay arm, and wherein the first actuator end is pivotably coupled to the mount.

9. The vehicle of claim 1 , wherein the actuator is a linear actuator, the first configuration is a retracted configuration, and the second configuration is an extended configuration.

10. The vehicle of claim 1 , wherein the pawl has a tooth shape or a cam shape.

11. The vehicle of claim 1 , wherein the release arm extends from the actuator, across the stay arm, and to the second interface of the slide.

12. A support assembly for a vehicle, the support assembly comprising:
a first bracket configured to couple to a first portion of the vehicle;
a second bracket configured to couple to a second portion of the vehicle;
a stay arm having a first stay arm end and an opposing second stay arm end, the first stay arm end coupled to the first bracket, the stay arm defining a locking interface between the first stay arm end and the opposing second stay arm end, the locking interface including one or more notches; and
a locking assembly coupled to the stay arm, the locking assembly including:
a slide translatable along the stay arm between the first stay arm end and the opposing second stay arm end, the slide defining a first interface, a second interface, and a third interface, the first interface coupled to the second bracket;
an actuator having a first actuator end and a second actuator end, the first actuator end coupled to the third interface of the slide;
a release arm having a first release arm end and a second release arm end, the first release arm end coupled to the second actuator end, the second release arm end coupled to the second interface of the slide; and
a pawl coupled to the second release arm end, the pawl positioned to engage with the locking interface when the actuator is in a first configuration and disengage from the locking interface when the actuator is in a second configuration.

13. The support assembly of claim 12 , wherein the first portion is a chassis of the vehicle, and wherein the second portion is a cab of the vehicle.

14. The support assembly of claim 12 , wherein the first portion is a chassis of the vehicle, and wherein the second portion is an engine enclosure of the vehicle.

15. The support assembly of claim 12 , wherein the second portion is pivotable relative to the first portion.

16. The support assembly of claim 12 , wherein an orientation of the pawl is fixed relative to the release arm.

17. The support assembly of claim 12 , wherein the one or more notches include a plurality of notches.

18. The support assembly of claim 12 , wherein an interface between the first release arm end of the release arm and the second actuator end is spring biased.

19. A support assembly comprising:
a first bracket configured to couple to a first component;
a second bracket configured to couple to a second component;
a stay arm having a first stay arm end and an opposing second stay arm end, the first stay arm end pivotably coupled to the first bracket, the stay arm defining a locking interface between the first stay arm end and the opposing second stay arm end, the locking interface including a plurality of notches;
a slide translatable along the stay arm between the first stay arm end and the opposing second stay arm end, the slide defining a channel that receives the stay arm, the slide including:
a first flange extending downward from a first slide end of the slide and beneath the stay arm, the first flange defining a first aperture that pivotably couples the slide to the second bracket;
a second flange extending downward from an opposing second slide end of the slide and beneath the stay arm, the second flange defining a second aperture; and
a mount extending upward from the first slide end of the slide and above the stay arm;

an actuator having a first actuator end and a second actuator end, the first actuator end pivotably coupled to the mount;
an arm having a first arm end and a second arm end, the first arm end coupled to the second actuator end at an interface and the second arm end engaging with the second aperture of the second flange of the slide such that the arm extends from the actuator, across the stay arm, and to the second flange of the slide; and
a pawl coupled to the second arm end of the arm and at least partially positioned within the channel of the slide, wherein the pawl is positioned to engage with the locking interface when the actuator is in a first configuration and disengage from the locking interface when the actuator is in a second configuration.

Assignees

• Oshkosh Corp

Inventors

• Archer David W

Classifications

• B62D33/07

  characterised by the device for locking the cab in the tilted or in the driving position · CPC title

• F16D63/006

  Positive locking brakes · CPC title

• B62D33/0633 Primary

  pivotable about a vertical axis · CPC title