U.S. patent application number 14/594115 was filed with the patent office on 2016-07-14 for construction machine.
This patent application is currently assigned to BAUER MASCHINEN GmbH. The applicant listed for this patent is BAUER MASCHINEN GmbH. Invention is credited to Mathias KOHL, Martin LANZL, Ralf OEHME, Stefan ROTH.
Application Number | 20160201293 14/594115 |
Document ID | / |
Family ID | 56367139 |
Filed Date | 2016-07-14 |
United States Patent
Application |
20160201293 |
Kind Code |
A1 |
ROTH; Stefan ; et
al. |
July 14, 2016 |
CONSTRUCTION MACHINE
Abstract
A construction machine comprising an undercarriage designed as a
running gear and an upper carriage with a housing having side
walls, wherein for access to the housing at least one housing
opening with an access wall is provided, which is adjustable into
an open position, and in an area in front of the housing opening a
horizontal gangway is formed. At least one pull-out element is
provided which can be pulled out horizontally between a retracted
position and a pulled out position, in which the pull-out element
projects horizontally from the housing, and in order to form the
gangway a base plate is provided on the pull-out element.
Inventors: |
ROTH; Stefan; (Petershausen,
DE) ; LANZL; Martin; (Ingolstadt, DE) ; OEHME;
Ralf; (Ingolstadt, DE) ; KOHL; Mathias;
(Strobenried, DE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
BAUER MASCHINEN GmbH |
Schrobenhausen |
|
DE |
|
|
Assignee: |
BAUER MASCHINEN GmbH
Schrobenhausen
DE
|
Family ID: |
56367139 |
Appl. No.: |
14/594115 |
Filed: |
January 10, 2015 |
Current U.S.
Class: |
296/26.13 ;
296/190.01 |
Current CPC
Class: |
E02D 17/13 20130101;
E02F 9/0833 20130101; E02F 9/163 20130101; B60R 3/005 20130101;
E02F 9/0891 20130101 |
International
Class: |
E02F 9/08 20060101
E02F009/08 |
Claims
1. Construction machine comprising an under carriage designed as a
running gear and an upper carriage with a housing having side
walls, wherein for access to the housing at least one housing
opening with an access wall is provided, which is adjustable by an
adjustment mechanism into an open position, and in an area in front
of the housing opening a horizontal gangway is formed, wherein at
least one pull-out element with a substantially vertical side wall
element and a horizontal base plate is provided, which can be
pulled out horizontally by at least two displaceable rails between
a retracted position and a pulled out position, in which the
pull-out element projects horizontally from the housing, the base
plate is attached to the at least two displaceable rails in the
retracted position and the pull-out position for forming the
gangway, the access wall, formed in a substantially vertical
orientation, including a lower side wall element and an upper side
wall element; the upper wall element is movable between a closed
position and an open position; and the base plate forms a part of
the housing in the retracted position and an access to the interior
of the housing is enabled from an underside position when the base
late is in the pull-out position.
2. Construction machine according to claim 1, wherein at least two
displaceable rails are designed as telescopic rails.
3. Construction machine according to claim 1, wherein the side wall
element forms at least a part of the access wall.
4. Construction machine according to claim 1, wherein the at least
one housing opening extends to the bottom of the housing forming a
bottom opening, which is closed by the base plate in the retracted
position and opened in the pull-out position.
5. (canceled)
6. Construction machine according to claim 1, wherein the upper
wall element is opening, is supported in a folding or displaceable
manner.
7. Construction machine according to claim 6, wherein in the open
position a protective roof is formed above the gangway by the upper
wall element.
8. Construction machine according to claim 1, wherein on the
gangway or a ceiling area of the housing a mountable railing
element is provided.
9. Construction machine according to claim 1, wherein on the
housing several pull-out elements are provided.
Description
BACKGROUND OF THE INVENTION
[0001] (1) Field of the Invention:
[0002] The invention relates to a construction machine comprising
an undercarriage designed as a running gear an upper carriage with
a housing having side walls, wherein for access to the housing at
least one housing opening with an access wall is provided, which is
adjustable by means of an adjustment mechanism into an open
position, and in an area in front of the housing opening a
horizontal gangway is formed.
[0003] (2) Description of the Related Art
[0004] Upper carriages of such type are deployed, for example, in
earth drilling apparatuses or other earth working machines. These
construction machines usually have a running gear, in particular a
crawler-track running gear, as an undercarriage, on which an upper
carriage is arranged in a fixed or rotatable manner. The upper
carriage can therefore have a considerable distance to the ground
surface. Depending on the size of the undercarriage this can
usually amount to 1 to 2 meters and more. As a rule, the drive
units, such as a diesel engine, hydraulic pumps, a current
generator or further drives for winches, are arranged in the upper
carriage. Thus, for maintenance and repair purposes an easy and
safe access to the housing of the upper carriage is required.
[0005] From DE 10 2009 050 189 A1 a construction machine with an
upper carriage is known, in which parts of the housing can be
folded open in the upward direction. A lateral gangway with fall
protection device is arranged in a fixed manner along the flanks of
the housing. However, such gangways arranged in a fixed manner
either reduce the constructional space inside the housing or
enlarge the external dimensions of the construction machine.
[0006] An upper carriage with a fold-out gangway can be taken from
JP 6-85148 A1. The gangway is designed as a grating which is placed
externally against a side wall. To set up the gangway supports have
to be swung out and the grating must be folded downwards. An
external grating has a negative effect on the appearance of the
upper carriage and is, moreover, exposed to dirt and soiling
without protection.
[0007] From SU 546555 A1 it is known a vehicle with wheels, at
which a side wall can be displaced by displaceable rails which can
be regarded as telescopic rails. After displacement and extension a
vertical plate is placed into a horizontal position for forming a
gangway.
[0008] A generic construction machine can be taken from EP 2 216
238 A1 for example. In this upper carriage vertical side walls can
be moved vertically upwards by means of an adjustment mechanism. An
internal protected gangway can then be folded downwards into a
horizontal position in order to form a horizontal gangway. The
gangway can only be formed after the access wall has been opened
which can be a problem in terms of handling and for the safety of
the operating personnel.
[0009] The invention is based on the object to provide an upper
carriage which, whilst being of a simple and compact construction,
enables an easy and at the same time safe set-up of a gangway.
SUMMARY OF THE INVENTION
[0010] The construction machine according to the invention is
characterized in that at least one pull-out element with a
substantially vertical side wall element and a horizontal base
plate is provided, which can be pulled out horizontally between a
retracted position and a pulled out position, in which the pull-out
element projects horizontally from the housing, and attached to at
least two displaceable rails in the retracted position and the
pull-out position for forming the gangway.
[0011] A basic idea of the invention resides in the fact that on at
least one of the substantially vertical side walls provision is
made for a pull-out element that is capable of being pulled out
horizontally. In the retracted position the pull-out element is
stored in a space-saving manner in or on the housing. Even in the
case of large and heavy pull-out elements a horizontal pulling-out
or retraction can be brought about with relatively small forces.
This can be effected by a motor or manually. The pull-out element
can be pulled out to such an extent that sufficient space is made
available for a gangway for the operating personnel.
[0012] Basically, for horizontal displacement of the pull-out
element any type of displacement mechanism can be provided.
According to the invention an especially simple and robust
arrangement is achieved in that at least two displaceable rails are
designed as telescopic rails. By means of which the pull-out
element is supported in such a manner that it can be pulled out.
The two telescopic rails are provided in the lateral outer areas of
the pull-out element so that it can be pulled out horizontally in a
manner similar to a drawer. In the case of greater lengths of the
pull-out element one or more telescopic rails can also be provided
in a central area. By preference, a telescopic rail comprises a
hollow rail fixed on the upper carriage, in which an inner rail is
supported in an axially movable manner. The pull-out element is
fixed on the movable inner rail.
[0013] A preferred embodiment of the invention resides in the fact
that the side wall element forms at least a part of the access
wall. In the horizontally pulled out open position this side wall
element is still in a substantially vertical position and can
thereby preferably form a railing or a part of the railing as a
fall protection device on the gangway. By preference, the side wall
element is disposed on the outside in the retracted or closed
position and thus forms a part of the external access wall, hence
the side wall of the housing. However, the side wall element can
also be arranged on the inside and covered by an external removable
or adjustable external wall element of the access wall.
[0014] Furthermore, an embodiment of the invention can be seen in
the fact that the base plate is supported by or on the at least two
telescopic rails. The telescopic rails are therefore designed as a
supporting carrier or supporting frame for the base plate and hence
the gangway. Further or additional support elements are not
necessarily needed in this embodiment.
[0015] According to an embodiment of the invention it is preferred
that the base plate is attached to the telescopic rails and can be
moved out when the pull-out element is being drawn out. The base
plate is arranged in a fixed manner on the telescopic rails, being
in horizontal arrangement in or on the housing even in the closed
position. By pulling out the pull-out element a ready-made gangway
is thus formed, in which case a vertically disposed side wall
element can serve as a railing for lateral fall protection.
[0016] According to a preferred embodiment of the invention, the at
least one housing opening extends to the bottom of the housing
forming a bottom opening, which is closed by the base plate in the
retracted position and opened in the pull-out position. Thus the
base plate forms part of the bottom of the housing. Along the edges
of the base plate a sealing can be provided. In the pull-out
position access to the interior of the housing, for example to an
engine, is possible from the underside. This is useful to
facilitate maintenance works. Further, a single housing opening can
be formed which extends from the side wall to the bottom of the
housing.
[0017] According to another embodiment of the invention a compact
arrangement is achieved in that a part of the base plate is
moveable and can be attached to the pull-out element after this has
been drawn out. The base plate comprises a fixed part and the
moveable part which can be stored as a separate piece in a
different place and is only installed to create the gangway when
the pull-out element has been pulled out. By preference, the
moveable part of the base plate can be arranged in a folding manner
on the fixed part or an interior of the side wall element for
example. Hence, in the retracted position a part of the base plate
can be directed vertically in a manner parallel to the side wall
element. In the pulled out position the base plate can then be
folded away from the side wall element into the horizontal position
onto the telescopic rails. Alternatively, the base plate itself can
also be designed as a telescopic plate.
[0018] The access wall can consist exclusively of the side wall
element or be composed of several wall elements. The individual
wall elements can be arranged side by side in succession so as to
form a multi-layer access wall. By preference, in order to form the
access wall provision is made above the side wall element for an
upper wall element which, to enable its opening, is supported in a
folding or displaceable manner. For example the upper wall element
can be displaced or folded vertically upwards in order to form a
railing element in the ceiling area.
[0019] According to a further embodiment of the invention, the base
plate comprises an outer housing plate and an inner gangway plate.
Furthermore, an insulation layer for reducing noise can be provided
between the outer housing plate and the inner gang-way plate.
[0020] According to an embodiment of the invention it is especially
advantageous for the upper wall element to form a protective roof
above the gangway in the open position.
[0021] For this purpose, the upper wall element can be hinged in a
folding manner on its upper side to the ceiling area of the upper
carriage and in this way moved upwards into an inclined or folded
position where it is fixed by a locking mechanism. Hence, through
the gangway with railing and the protective roof a working area
that is particularly protected against all weather conditions can
be formed when the housing is open. In this case, an adjustment
mechanism for the access wall therefore comprises the pull-out
element, which is capable of being pulled out, with the lower side
wall part and a folding mechanism for the upper wall part.
[0022] To further enhance the operational safety it is of advantage
in accordance with an embodiment of the invention that a mountable
railing element is provided on the gangway and/or a ceiling area of
the housing. The railing element can be provided on the side wall
element for example in order to increase its height or provide
additional safety where appropriate. The mountable railing element
can also be provided at the front sides of the gangway. The
mountable railing element can have a folding or pivot mechanism
with bar-shaped elements or extendable barrier ropes or barrier
chains. A railing element located in the ceiling area can provide
additional protection for the working area formed.
[0023] If, when the access wall is open, the housing opening is not
located directly adjacent to a driver's cab or an existent walking
area of the upper carriage, provision can be made for one or
several further pull-out elements. The pull-out element can be a
simple movable base plate that is displaceable between a retracted
position, in which the pull-out base is moved into the housing, and
a pulled out position. In the pulled out position the pull-out base
can be located adjacent to another gangway formed at the housing
opening. Provision can also be made for mountable and, in
particular, fold-out railing elements. As a matter of course, if a
distance to the gangway is present, base plates can also be folded
out or installed in a different way.
[0024] The invention comprises a construction machine having an
upper carriage and an undercarriage which is designed as a running
gear, wherein the construction machine is characterized in that the
upper carriage is designed according to the afore-described
invention. In particular, the construction machine is a
construction machine for foundation engineering, especially an
earth drilling apparatus, a vibrator or a pile driving device, as
used in specialist foundation engineering in particular. The
under-carriage is provided with crawler tracks.
[0025] In the following the invention will be described further by
way of a preferred embodiment illustrated schematically in the
accompanying drawings, wherein show:
BRIEF DESCRIPTION OF THE VIEWS OF DRAWINGS
[0026] FIG. 1 a first perspective view of an upper carriage
according to the invention with closed access walls;
[0027] FIG. 2 a further perspective view of the upper carriage
according to FIG. 1 with closed access walls;
[0028] FIG. 3 a perspective view of the upper carriage according to
FIG. 1 with open access walls;
[0029] FIG. 4 a perspective view of the upper carriage according to
FIG. 2 with open access walls; and
[0030] FIG. 5 the upper carriage according to the view of FIG. 4
with open door, in addition.
DETAILED DESCRIPTION OF THE INVENTION
[0031] In FIGS. 1 and 2 an upper carriage 10 for a construction
machine according to the invention is shown in a closed state, i.e.
with closed access walls 30. The upper carriage 10 comprises a
box-like housing 12 which is supported by a basic frame 14. The
box-like housing 12 comprises side walls 20 which are closed at the
top by a ceiling area 18. The side walls 20 have access walls 30
which can be opened and are described in greater detail
hereinafter.
[0032] At a front side of the upper carriage 10 a driver's cab 16
is arranged, as is known for various kinds of construction
machines, especially earth drilling apparatuses.
[0033] For the sake of clarity, the illustrated upper carriage 10
is shown to a large extent without any attachments. In a central
area of the housing 12 rope winches and a mast can be mounted.
Inside the housing 12 different types of drive and control
components can be accommodated, in particular a diesel drive,
hydraulic pumps and a substantial part of the machine control
unit.
[0034] The upper carriage 10 is attached to an undercarriage, in
particular a crawler-track running gear. Due to the considerable
size of such undercarriages on construction machines the external
access to the housing 12 is not easily possible. The access walls
30 can be adjusted from a closed position shown in FIGS. 1 and 2
into an open position according to FIGS. 3 to 5. According to the
invention pull-out elements 50 capable of being pulled out or
displaced horizontally are provided. The pull-out elements 50 have
a base plate 52 which, in the case of larger access walls 30, is
provided by means of ball bearing-mounted telescopic rails 54 for
horizontal movement. A horizontal movement can be effected manually
or by a positioning mechanism that can have tension springs, a
drive motor or a positioning cylinder.
[0035] By opening the access walls 30 and the base plate 52 a
housing opening 22 is brought about on the housing 12. The housing
opening 22 continuously extends from the side to the bottom of the
housing 12. For safe access to the housing opening 22 the
substantially vertical access walls 30 have a lower side wall
element 56 which is arranged in a fixed manner on the telescopic
rails 54. In the illustrated embodiment, a grating-like base plate
52 is in each case also arranged on the telescopic rails 54. In
this embodiment, the opening of the housing 12 implemented through
outward displacement of the side wall element 56 takes place at the
same time as the base plate is moved out to form a gangway. The
base plate 52 comprises a lower outer housing plate and an upper
grid-like gangway plate.
[0036] An upper wall element 32 of the access wall 30 is pivotably
supported in a ceiling area 18, enabling it to be pivoted upwards
in order to enlarge the housing opening 22. The upper wall element
32 can preferably be fixed in an inclined position so that the
upper wall element 32 forms a protective roof above the open
working area on the housing 12. This is especially advantageous in
bad weather conditions.
[0037] In the pulled out position the pulled out side wall element
56 forms a railing at the same time. As can be gathered from FIG. 4
in particular, a reinforcing frame 58 can be provided for this
purpose on the interior of the side wall element 56.
[0038] As a further safety measure a fold-out or mountable railing
element 40 can be set up in the ceiling area 18 above the housing
opening 22. The railing element 40 ensures that persons, in
particular, do not fall into the open working area.
[0039] In the area of the driver's cab 16 as well as in an area
with a ladder 24 leading to the ceiling area 18 the pull-out
element 50 can be designed as a simple base plate 52 that is
capable of being pulled out. Through the base plates 52 thus
located adjacent to each other a continuous gangway 60 can be
formed. In the area of the ladder 24 a side wall 20 can be designed
as a door element 26 which is pivotable by way of hinges 28 about a
vertical pivot axis. On completion of the maintenance or
operational works the pull-out elements 50 can be moved back
without great effort by a motor or in a manual fashion from the
pulled out position into the retracted position according to FIGS.
1 and 2. In this drawn-in retracted position, the base plates 52
are in particular protected against dirt or damage.
* * * * *