Hopper system for paving machine

Patent metadata

Field	Value
Publication number	US-9580875-B1
Application number	US-201514874585-A
Country	US
Kind code	B1
Filing date	Oct 5, 2015
Priority date	Oct 5, 2015
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

A paving machine is disclosed. The paving machine includes a frame and a hopper system mounted on the frame. The hopper system includes a rear wall member coupled to the frame. The hopper system also includes a side wall member movable between an open position and a closed position relative to the frame. The rear wall member and the side wall member are together configured to receive a paving material. The hopper system further includes a cover member pivotally coupled to the side wall member. The cover member blocks an opening defined between the rear wall member and the side wall member, when the side wall member moves to the open position.

First claim

What is claimed is:

1. A paving machine comprising:
a frame; and
a hopper system disposed on the frame, the hopper system comprising:
a rear wall member coupled to the frame;
a side wall member movable between an open position and a closed position relative to the frame, wherein the rear wall member and the side wall member are together configured to receive a paving material; and
a cover member pivotally coupled to the side wall member, wherein the cover member blocks an opening defined between the rear wall member and the side wall member, when the side wall member moves to the open position.

2. The paving machine of claim 1 , wherein the cover member comprises:
a first cover portion;
a second cover portion spaced apart from the first cover portion;
a base portion connecting the first cover portion and the second cover portion, wherein the first cover portion and the second cover portion define a space therebetween to receive at least a portion of the side wall member; and
a pin member configured to couple the cover member with the side wall member.

3. The paving machine of claim 2 , wherein the space between the first cover portion and the second cover portion defines a thickness greater than or equal to a thickness of the side wall member.

4. The paving machine of claim 2 , wherein the cover member moves to a first position relative to the pin member during movement of the side wall member to the open position, and wherein the cover member moves to a second position relative to the pin member during movement of the side wall member to the closed position.

5. The paving machine of claim 4 , wherein in the first position, the cover member moves away from the side wall member to block the opening at the open position of the side wall member.

6. The paving machine of claim 4 , wherein in the second position, the cover member moves proximal to the side wall member to allow movement of the side wall member to the closed position.

7. The paving machine of claim 4 , wherein the hopper system comprises a rod member coupled between the frame and the second cover portion, wherein the rod member is configured to move the cover member between the first position and the second position.

8. The paving machine of claim 4 , wherein the hopper system comprises an elastic member disposed between a peripheral surface of the side wall member and the base portion of the cover member, and wherein the elastic member allows movement of the cover member to the first position during movement of the side wall member to the open position.

9. The paving machine of claim 8 , wherein the elastic member is an open coil spring.

10. The paving machine of claim 8 , wherein the elastic member is a leaf spring.

11. A hopper system for a paving machine comprising:
a rear wall member coupled to a frame of the paving machine;
a side wall member coupled to the frame and movable between an open position and a closed position, wherein the rear wall member and the side wall member are together configured to receive a paving material;
a cover member coupled to the side wall member and movable between a first position and a second position relative to the side wall member; and
a rod member coupled between the frame and the cover member, the rod member configured to move the cover member between the first position and the second position during movement of the side wall member between the open position and the closed position, respectively,
wherein the cover member blocks an opening defined between the rear wall member and the side wall member in the open position of the side wall member.

12. The hopper system of claim 11 , wherein in the first position, the cover member moves away from the side wall member to block the opening at the open position of the side wall member.

13. The hopper system of claim 11 , wherein in the second position, the cover member moves proximal to the side wall member for allowing movement of the side wall member to the closed position.

14. The hopper system of claim 11 , wherein the cover member comprises:
a first cover portion;
a second cover portion spaced apart from the first cover portion;
a base portion connecting the first cover portion and the second cover portion, wherein the first cover portion and the second cover portion define a space therebetween to receive at least a portion of the side wall member; and
a pin member configured to couple the cover member with the side wall member.

15. The hopper system of claim 14 , wherein the space between the first cover portion and the second cover portion defines a thickness greater than or equal to a thickness of the side wall member.

16. The hopper system of claim 14 comprising an elastic member disposed between a peripheral surface of the side wall member and the base portion of the cover member, wherein the elastic member allows movement of the cover member to the first position during movement of the side wall member in the open position.

17. The hopper system of claim 16 , wherein the elastic member is one of an open coil spring, a leaf spring, and a gas spring.

18. A method of operating a hopper system for a paving machine, the method comprising:
moving a ground engaging member of the paving machine over a ground surface;
moving the hopper system from a closed position to an open position, the hopper system comprising a rear wall member and a side wall member for receiving a paving material therein; and
moving a cover member from a second position to a first position to block an opening defined between the rear wall member and the side wall member at the open position of the hopper system.

19. The method of claim 18 comprising, moving the cover member away from the side wall member to block the opening at the open position of the hopper system.

20. The method of claim 18 comprising, moving the cover member proximal to the side wall member for allowing movement of the hopper system to the closed position.

Assignees

• Caterpillar Paving Products Inc

Inventors

• D'Ascanio Valerio E

Classifications

• E01C19/48 Primary

  for laying-down the materials and consolidating them, or finishing the surface {, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ (E01C19/002, E01C23/065 take precedence; devices for guiding or controlling the machines along a predetermined path E01C19/004)} · CPC title

• E01C2301/02

  Feeding devices for pavers · CPC title