Road construction machine of the road paver or feeder type

Patent metadata

Field	Value
Publication number	US-10322626-B2
Application number	US-201715606320-A
Country	US
Kind code	B2
Filing date	May 26, 2017
Priority date	May 27, 2016
Publication date	Jun 18, 2019
Grant date	Jun 18, 2019

Abstract

A road paver or a feeder having a chassis driven by a drive unit, and a material hopper arranged in the working direction at the front of the road paver or the feeder, the material hopper having a hopper side wall extending in the working direction and a discharge flap tiltable about a pivot axis extending transversely to the working direction, the discharge flap comprising a flap base and a flap side wall which extends next to the hopper side wall and is fixed to the flap base and supported to be moveable relative to the hopper side wall, a protective cover, which at least partially engages around the edge of the flap side wall, being arranged on the hopper side wall.

First claim

What is claimed is:

1. A road paver or feeder, comprising:
a chassis driven by a drive unit; and
a material hopper located at a front of the road paver or the feeder in a working direction of the road paver or the feeder, the hopper comprising a hopper side wall extending in the working direction and a discharge flap tiltable about a pivot axis extending transversely to the working direction, the discharge flap comprising
a flap base, and
a flap side wall which extends next to the hopper side wall and is fixed to the flap base and supported to be moveable relative to the hopper side wall, and
wherein a protective cover is arranged on the hopper side wall, which at least partially engages around an edge of the flap side wall.

2. The road paver or feeder according to claim 1 , wherein the edge of the flap side wall includes a base edge fixed to the flap base, an inner edge and a curve edge, and wherein the protective cover at least partially engages around the curve edge.

3. The road paver or feeder according to claim 1 , wherein the protective cover comprises a bridging part arranged on the hopper side wall and an overlapping part arranged on the bridging part, which together with the hopper side wall form a guiding space in which the flap side wall is arranged.

4. The road paver or feeder according to claim 3 , wherein the guiding space is formed to be closed in the working direction and vertically upward.

5. The road paver or feeder according to claim 1 , wherein the protective cover includes a profile which is curved and is adapted to a movement of the flap side wall when the discharge flap is tilted about the pivot axis.

6. The road paver or feeder according to claim 3 , wherein the protective cover comprises at least one of the following features:
the bridging part is formed integrally with the hopper side wall;
the bridging part is formed integrally with the overlapping part; and
the bridging part and the overlapping part together are formed integrally with the hopper side wall.

7. The road paver or feeder according to claim 3 , wherein the bridging part and the overlapping part are formed of a same material.

8. The road paver or feeder according to claim 3 , wherein the protective cover comprises at least one of the following features:
the bridging part is welded to the hopper side wall, and the overlapping part is welded to the bridging part;
the bridging part is welded to the hopper side wall, and the overlapping part is detachably mounted on the bridging part by at least one releasable fastening means;
the bridging part is detachably mounted on the hopper side wall by at least one releasable fastening means, and the overlapping part is detachably mounted on the bridging part by at least one further releasable fastening means; and
the bridging part and the overlapping part together are detachably mounted on the hopper side wall by at least one releasable fastening means.

9. The road paver or feeder according to claim 1 , wherein a pivot recess is formed in the flap base at a front end of the flap base in the working direction directly next to the flap side wall, in which pivot recess a part of the protective cover is received when the discharge flap is tilted.

10. The road paver or feeder according to claim 1 , wherein the flap side wall projects beyond the flap base in the working direction, and the protective cover engages only over a part of the flap side wall protruding beyond the flap base.

11. The road paver or feeder according to claim 3 , wherein the edge of the flap side wall is arranged in the guiding space.

12. The road paver or feeder according to claim 11 , wherein the edge of the flap side wall is a curve edge.

13. The road paver or feeder according to claim 4 , wherein the guiding space is formed to be closed in the working direction and vertically upward by the bridging part.

14. The road paver or feeder according to claim 5 , wherein the protective cover is adapted to the movement of the flap side wall when the discharge flap is tilted about the pivot axis such that an engagement of the protective cover around the edge of the flap side wall is maintained over the entire tilting range.

Assignees

• Bomag Gmbh

Inventors

• Neumann Tobias

Classifications

• E01C19/29

  Rolling apparatus adapted to apply a rolling pressure less than its weight, e.g. roller finishers travelling on formrail {combined with spread-out, strike-off or smoothing means; Rolling elements with controlled penetration or a controlled path of movement in a vertical plane, e.g. controlled by the formrails, by guides ensuring a desired configuration of the rolled surface} · CPC title

• E01C19/405

  with spreading-out, levelling or smoothing means other than the tamping or vibrating means for compacting or smoothing, e.g. with screws for spreading-out the previously dumped material, with non-vibratory lengthwise reciprocated smoothing beam (E01C19/407 takes precedence) · CPC title

• B60J11/06

  for covering only specific parts of the vehicle, e.g. for doors (covers or guards for traction couplings, hitches, draw-gear or towing devices B60D1/60; guards for wheels, radiators or bumpers B60R19/00) · CPC title

• E01C23/14

  for heating or drying foundation, paving, or materials thereon, e.g. paint (E01C23/03 takes precedence; heating or drying devices incorporated in the paving E01C11/26; surface {soil} stabilisation by fusing, calcining or burning soil in situ E01C21/02; for street cleaning E01H1/08; melting snow or ice on surfacing E01H5/10) · CPC title

• E01C2301/04

  Independent shuttles · CPC title