GB2066169A

GB2066169A - Tipping vehicles

Info

Publication number: GB2066169A
Application number: GB8038477A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1979-11-30
Filing date: 1980-12-01
Publication date: 1981-07-08
Also published as: GB2066169B

Abstract

A tipping vehicle has a load- carrying body with an upstanding surround (11) for load-containing purposes, the rear (10) of which surround (11) is hinged (at 13) about its upper end to enable discharge of a load when the body is tipped. The rear (10) is locked when the body is in a rest position, the locking means comprising in combination a bolt (14) and a keeper bar (20). The bolt (14) is pivotally mounted on the chassis (16) and is in registry with a hole (19) in the floor (18) of the body at the rear end thereof. As the body is tipped, the bolt (14) withdraws from the hole (19) allowing the rear (10) to open. <IMAGE>

Description

SPECIFICATION Tipping vehicles This invention relates to tipping vehicles which may or may not be self-propelled and which are of the type comprising a wheeled chassis and a loadcarrying body supported on and pivotal relative to the chassis about a transverse horizontal axis at the rear of the chassis through extension of one or more hydraulic rams linking the body and the chassis well forward of said transverse horizontal pivot axis, the body having an upstanding surround for loadcontaining purposes and being lockable to the chassis when in the load-carrying position. In tipping vehicles of the type stated, the rear of the surround is hinged about its upper end to enable discharge of a load when the body is tipped.

According to the present invention, there is provided a tipping vehicle of the type stated in which the rear of the surround is unlocked and free to open under gravity as the body is being tipped relative to the chassis, and is locked when the body is in a rest position, the locking means comprising in combination a bolt pivotally mounted on the chassis and in registry with a hole in the floor of the body at the rear end thereof and a keeper bar mounted on and forwardly of the rear of the surround, whereby as the body is tipped the bolt is withdrawn from the hole to permit rearward movement of the bar thus ailowing the rear to open.

An embodiment of the present invention will now be described by way of example, with reference to the accompanying drawings in which: Figure 1 is a diagrammatic side elevation of a tipping vehicle in a rest position with the rear of a surround in a locked closed position; Figure 2 is a diagrammatic side elevation of the tipping vehicle in a tipped position with the rear of the surround in an unlocked open position; Figure 3 is a diagrammatic rear view of the tipping vehicle in the closed position; and Figures 4A and 4B are diagrammatic front and side views respectively of a locking mechanism to a larger scale.

Atipping vehicle of the kind stated has its rear 10 of the surround 11 similarly connected to each of the two opposed longitudinal sides of the surround 11.

This is achieved by the rear 10 being pivotally connected at two pivot points 13, one each at the top of a support 12 of the pertaining longitudinal side of the surround 11.

The axes of the two pivot points 13 are co-axial with one another. The rear 10 of the surround 11 swings open, under gravity about the pivot points 13 as the body is being tipped. In a rest position, the rear 10 of the surround is locked to the chassis as described hereinafter by a locking mechanism. With particular reference to Figures 4A and 4B, the locking mechanism comprises in combination a bolt 14 and a keeper bar 20. The bolt 14 is pivotally mounted at 15 i.e. adjacent to its bottom to the chassis 16 with the top end of the bolt 14 in sliding engagement with a tube 17 pivotally mounted at its top end to the underside of a floor 18 of the load-carrying body.

The tube 17 is aligned with a hole 19 provided in the floor 18 whereby when the body is in a rest position, the top of the bolt 14 projects through the hole 19.

The bar 20 is supported by ties 21 and located forwardly of the rear whereby when the body is in the rest position, the bar 20 is forward of the hole 19 and is prevented from moving rearwardly by en gagementtherewith of the bolt 14 projecting through the hole.

The rear 10 is a closing fit with the longitudinal sides of the surround 11, and arresting means is provided to prevent the rear 10 moving forwardly beyond its position to close off the area between the back ends of the two longitudinal sides when moving down under gravity as the body is moved into a rest position. The arresting means comprises a three-part damper bar 22 parallel to the bottom cross-member of the rear 10, the central part 22A of which is secured to the outside of the rear 10 with the two outer parts 22B pivotally connected one to each end of the part 22A. The outer end of each part 22B extends a short distance beyond the lateral sides of the rear 10 and is for seating in a U-bracket 23 mounted at the lateral side member of the rear 10 of the surround 11.Each outer part 22B of the damper bar 22 is connected adjacent to its outer-end by a spring 24 to a tie 21 as shown in Figure 2. These two springs 24 serve to return the rear 10 to its correct position. The dampering effect of the bar 22 and springs 24 prevent damage to the rear 10 of the surround 11.

In use, a tipping vehicle of the kind stated is filled with material when the platform is at rest and locked to the chassis and to empty the material therefrom the platform is unlocked and the ram is extended. As the ram extends the bolt 14 withdraws from the hole in the rising body and releases the rear of the surround to enable it to swing under gravity from a closed position to an open position the extent of the opening depending on the amount of tipping of the body, thereby to allow the material to fall or move out of the body under gravity, through the rear opening on to the ground or other surface.

1. A tipping vehicle of the type stated in which the rear of the surround is unlocked and free to open under gravity as the body is being tipped relative to the chassis, and is locked when the body is in a rest position, the locking means comprising in combination a bolt pivotally mounted on the chassis and in registry with a hole in the floor of the body at the rear end thereof and a keeper bar mounted on and forwardly of the rear of the surround, whereby as the body is tipped the bolt is withdrawn from the hole to permit rearward movement of the bar thus allowing the rear to open.

2. Atipping vehicle as claimed in claim 1, wherein the top end of the bolt is in sliding engagement with a tube pivotally mounted at its top end to the underside of the floor of the load-carrying body, the tube being aligned with the hole.

3. Atipping vehicle as claimed in claim 1 or 2, wherein arresting means is provided to prevent the

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Tipping vehicles This invention relates to tipping vehicles which may or may not be self-propelled and which are of the type comprising a wheeled chassis and a loadcarrying body supported on and pivotal relative to the chassis about a transverse horizontal axis at the rear of the chassis through extension of one or more hydraulic rams linking the body and the chassis well forward of said transverse horizontal pivot axis, the body having an upstanding surround for loadcontaining purposes and being lockable to the chassis when in the load-carrying position. In tipping vehicles of the type stated, the rear of the surround is hinged about its upper end to enable discharge of a load when the body is tipped. According to the present invention, there is provided a tipping vehicle of the type stated in which the rear of the surround is unlocked and free to open under gravity as the body is being tipped relative to the chassis, and is locked when the body is in a rest position, the locking means comprising in combination a bolt pivotally mounted on the chassis and in registry with a hole in the floor of the body at the rear end thereof and a keeper bar mounted on and forwardly of the rear of the surround, whereby as the body is tipped the bolt is withdrawn from the hole to permit rearward movement of the bar thus ailowing the rear to open. An embodiment of the present invention will now be described by way of example, with reference to the accompanying drawings in which: Figure 1 is a diagrammatic side elevation of a tipping vehicle in a rest position with the rear of a surround in a locked closed position; Figure 2 is a diagrammatic side elevation of the tipping vehicle in a tipped position with the rear of the surround in an unlocked open position; Figure 3 is a diagrammatic rear view of the tipping vehicle in the closed position; and Figures 4A and 4B are diagrammatic front and side views respectively of a locking mechanism to a larger scale. Atipping vehicle of the kind stated has its rear 10 of the surround 11 similarly connected to each of the two opposed longitudinal sides of the surround 11. This is achieved by the rear 10 being pivotally connected at two pivot points 13, one each at the top of a support 12 of the pertaining longitudinal side of the surround 11. The axes of the two pivot points 13 are co-axial with one another. The rear 10 of the surround 11 swings open, under gravity about the pivot points 13 as the body is being tipped. In a rest position, the rear 10 of the surround is locked to the chassis as described hereinafter by a locking mechanism. With particular reference to Figures 4A and 4B, the locking mechanism comprises in combination a bolt 14 and a keeper bar 20. The bolt 14 is pivotally mounted at 15 i.e. adjacent to its bottom to the chassis 16 with the top end of the bolt 14 in sliding engagement with a tube 17 pivotally mounted at its top end to the underside of a floor 18 of the load-carrying body. The tube 17 is aligned with a hole 19 provided in the floor 18 whereby when the body is in a rest position, the top of the bolt 14 projects through the hole 19. The bar 20 is supported by ties 21 and located forwardly of the rear whereby when the body is in the rest position, the bar 20 is forward of the hole 19 and is prevented from moving rearwardly by en gagementtherewith of the bolt 14 projecting through the hole. The rear 10 is a closing fit with the longitudinal sides of the surround 11, and arresting means is provided to prevent the rear 10 moving forwardly beyond its position to close off the area between the back ends of the two longitudinal sides when moving down under gravity as the body is moved into a rest position. The arresting means comprises a three-part damper bar 22 parallel to the bottom cross-member of the rear 10, the central part 22A of which is secured to the outside of the rear 10 with the two outer parts 22B pivotally connected one to each end of the part 22A. The outer end of each part 22B extends a short distance beyond the lateral sides of the rear 10 and is for seating in a U-bracket 23 mounted at the lateral side member of the rear 10 of the surround 11.Each outer part 22B of the damper bar 22 is connected adjacent to its outer-end by a spring 24 to a tie 21 as shown in Figure 2. These two springs 24 serve to return the rear 10 to its correct position. The dampering effect of the bar 22 and springs 24 prevent damage to the rear 10 of the surround 11. In use, a tipping vehicle of the kind stated is filled with material when the platform is at rest and locked to the chassis and to empty the material therefrom the platform is unlocked and the ram is extended. As the ram extends the bolt 14 withdraws from the hole in the rising body and releases the rear of the surround to enable it to swing under gravity from a closed position to an open position the extent of the opening depending on the amount of tipping of the body, thereby to allow the material to fall or move out of the body under gravity, through the rear opening on to the ground or other surface. CLAIMS

3. Atipping vehicle as claimed in claim 1 or 2, wherein arresting means is provided to prevent the rear moving forwardly beyond its closing position.

4. Atipping vehicle as claimed in claim 3, wherein the arresting means comprises a three part damper bar, the central part of which is secured to the outside of the rear and the two outer parts are extended beyond the lateral sides of the rear are pivotally connected one to each end of the central part, and are spring-biased towards the rear.

5. Atipping vehicle substantially as hereinbefore described with reference to the accompanying drawings.