Trigger guard and pendant for a portable hydraulic power unit

Patent metadata

Field	Value
Publication number	US-10656669-B2
Application number	US-201815965036-A
Country	US
Kind code	B2
Filing date	Apr 27, 2018
Priority date	Apr 28, 2017
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A trigger guard for a pendant for controlling a hydraulic power unit includes a first prong extending from a front side of a handle of the pendant; a second prong extending from the front side of the handle; a groove disposed between the first prong and the second prong, the groove defined by the first prong, the second prong, and the handle; a first gap disposed between the first prong and a head of the pendant; and a second gap disposed between the second prong and the head. The trigger is disposed between the first prong and the second prong such that the trigger is accessible through the groove, the first gap, and the second gap.

First claim

The invention claimed is:

1. A trigger guard for a control pendant, the trigger guard comprising:
a first prong extending from a first end of a cross-piece;
a second prong extending from a second end of the cross-piece;
a groove disposed between the first prong and the second prong, the groove defined by the first prong, the second prong, and the cross-piece;
a first side guard extending vertically from the cross-piece and the first prong;
a second side guard extending vertically from the cross-piece and the second prong;
a first gap disposed between the first prong and the first side guard; and
a second gap disposed between the second prong and the second side guard;
wherein the first side guard and the second side guard are spaced to receive a trigger configured to be actuated by depressing and releasing the trigger, the trigger extending from between the first side guard and the second side guard such that the trigger is accessible to be depressed and released through each of the groove, the first gap, and the second gap.

2. The trigger guard of claim 1 , wherein the first prong extends further from the first side guard than the trigger, and the second prong extends further from the second side guard than the trigger.

3. The trigger guard of claim 1 , wherein the first gap is a v-shaped gap open towards a distal end of the first prong.

4. The trigger guard of claim 1 , wherein the second gap is a v-shaped gap open towards a distal end of the second prong.

5. The trigger guard of claim 1 , wherein the groove is a u-shaped groove open between a distal end of the first prong and a distal end of the second prong.

6. The trigger guard of claim 1 , wherein the first prong is disposed below a bottom edge of the trigger, and the second prong is disposed below a bottom edge of the trigger.

7. The trigger guard of claim 1 , wherein the first prong is offset laterally from the first side guard in a first direction, and the second prong is offset laterally from the second side guard in a second direction opposite the first direction.

8. The trigger guard of claim 7 , wherein the first prong is offset laterally from the trigger in the first direction and the second prong is offset laterally from the trigger in the second direction, such a width of the groove is larger than a width of the trigger.

9. The trigger guard of claim 1 , wherein the first prong and the second prong are freestanding such that a guard does not extend between and connect a first prong distal end and a second prong distal end.

10. A control pendant comprising:
a head configured to house electronic components of the pendant;
a handle extending from the head, the handle including a first lateral side, a second lateral side, a rear side, and a front side; and
the trigger guard of claim 1 projecting from the front side of the handle proximate the head;
wherein the trigger guard is configured to provide user access to the trigger in a plurality of hand orientations, and the trigger guard is configured to provide user access to the trigger in a plurality of positions for each one of the plurality of hand orientations.

11. The trigger guard of claim 1 , wherein the control pendant is configured to control a hydraulic power unit.

12. A method of controlling with a control pendant, the control pendant having a head, a handle extending from the head, and a trigger extending from a front side of the handle proximate the head and disposed within a trigger guard extending from the front side, the trigger guard having a first prong, a second prong spaced laterally from the first prong, a groove disposed between the first prong and the second prong, a first gap disposed between the first prong and the head, and a second gap disposed between the second prong and the head, with the trigger accessible via each of the first gap, the second gap, and the groove, the method comprising:
grasping the handle of the pendant in one of a left-hand orientation and a right-hand orientation; and
accessing the trigger by one of:
shifting a thumb into the groove and towards the handle to depress the trigger and shifting the thumb away from the handle within the groove to release the trigger; and
shifting a finger into one of the first gap and the second gap and towards the handle to depress the trigger and shifting the finger away from the handle within the one of the first gap and the second gap to release the trigger.

13. The method of claim 12 , wherein grasping the handle of the pendant in the right-hand orientation comprises:
positioning the first lateral side in a right palm of a user such that at least one finger wraps around the front side of the handle; and
accessing the trigger with a right hand finger of the user through the first gap.

14. The method of claim 12 , wherein grasping the handle of the pendant in the right-hand orientation comprises:
positioning the second lateral side in a right palm of the user such that at least one right hand finger wraps around the back side of the handle; and
accessing the trigger with a right thumb of the user through the groove by lowering the right thumb between a first prong distal end and a second prong distal end and into the groove.

15. The method of claim 12 , wherein grasping the handle of the pendant in the left-hand orientation comprises:
positioning the second lateral side in a left palm of a user such that at least one finger wraps around the front side of the handle; and
accessing the trigger with a left hand finger of the user through the second gap.

16. The method of claim 12 , wherein grasping the handle of the pendant in the left-hand orientation comprises:
positioning the first lateral side in a left palm of the user such that at least one left hand finger wraps around the back side of the handle; and
accessing the trigger with a left thumb of the user through the groove by lowering the left thumb between a first prong distal end and a second prong distal end and into the groove.

17. The method of claim 12 , further comprising:
generating and communicating, by the pendant, an extension command to the hydraulic power unit based on the trigger being depressed.

18. The method of claim 12 , further comprising:
controlling operation of a hydraulic power unit by depressing and releasing the trigger.

19. A control pendant having a trigger, the trigger actuatable by either a finger or a thumb of a user's hand gripping the pendant, the pendant comprising:
a body having a first side and a second side opposite the first side, the body comprising:
a grip configured to be held by a user's hand, the grip extending between the first side and the second side of the body;
a pair of prongs located on the first side of the body; and
a groove located on the first side of the body and defined by and between the pair of prongs, each of the prongs having a free end that is not bridged to the free end of the other prong such that the groove is open; and

a trigger located on the first side of the body, the trigger aligned with the groove, the pair of prongs located between the trigger and the grip along the body;
wherein the body is configured to be held in first and second orientations;
wherein in the first orientation the user's hand grips the grip and the user's thumb moves in the groove between the pair of prongs to depress and release the trigger; and
wherein in the second orientation the user's hand grips the grip and the user's finger depresses and releases the trigger without moving within the groove between th

Assignees

• Graco Minnesota Inc

Inventors

• Dawson Charles W
• Ryder Douglas S

Classifications

• F04B23/06

  the pumps being all of reciprocating positive-displacement type · CPC title

• F04B17/06 Primary

  Mobile combinations · CPC title

• F04B23/02

  having reservoirs · CPC title

• F04B9/02

  the means being mechanical · CPC title

• G05G2505/00

  Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member · CPC title