JP2012062705A - Work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a work tool provided on the front face of a traveling frame to be also used as a container for tools or the like.SOLUTION: The work tool 15 includes: a mounting plate 16 mounted to the traveling frame 8 of a traveling undercarriage; right and left side walls 18 as reinforcing members projected forward from the right and left sides of the front face of the mounting plate 16; a flushing plate 17 as a front face plate attached to the front ends of the right and left side walls 18; and a bottom 19 attached between the bottom edges of the right and left side walls. Therefore, the work tool 15 is formed to be a box which has a space S capable of containing tools or the like H and an opening 20 for putting in and out the tools or the like H.

Description

  The present invention relates to a self-propelled working machine such as a timber processing machine (log loader) configured, for example, using a wheel excavator as a base body, and transporting, stacking, and unloading a truck.

  The background art will be described by taking a self-propelled timber processing machine having a wheel excavator as a base.

  In this timber processing machine, as shown in FIG. 5, an upper swing body 3 having a cabin 2 is mounted on a wheel-type lower traveling body 1 so as to be rotatable around an axis O perpendicular to the ground. A work attachment A is attached to the swivel body 3 and configured.

  The work attachment A includes a boom 4 that can be raised and lowered, an arm 5 attached to the tip of the boom 4, an openable / closable gripping tool 6 provided at the tip of the arm, and the like. ) Cargo handling work such as loading and unloading W is performed.

  The lower traveling body 1 has a traveling frame 8 provided with wheels 7..., And a work tool 9 is provided to project forward in the center of the front surface of the traveling frame 8 in the vehicle width direction.

  Conventionally, as shown in FIGS. 6 and 7, this work tool 9 has a wood alignment plate 11 (both square, usually as shown) on the front side of a mounting plate 10 attached to the front surface of the traveling frame 8 by bolting or the like. A vertically-aligned rectangular plate) is vertically attached, and a wood aligning operation is performed in which the wood aligning plate 11 pushes and aligns the cut ends of the lumber W by the self-propelling function of the machine.

  Accordingly, since a load from the front acts on the work tool 9, a frame-shaped edge frame 12 is provided on the rear surface of the wood alignment plate 11 as a reinforcing member to counter this load, and the work tool 9 is attached to the rear surface of the plate 11. Between the front surface of the plate 10, both left and right reinforcing walls 13, 13 and a pair of left and right reinforcing ribs 14, 14 are provided vertically.

  There is no patent document describing the prior art related to such a timber processing machine with a work tool, but as a related technique, a wheel excavator is a kind of work tool on a front surface of a traveling frame and a bucket is used during traveling. Japanese Patent Application Laid-Open No. H10-228667 discloses a technique that provides a “bucket holder” as a table to be placed.

  The structure of this known “bucket holder” (referred to as “receiving part” in Patent Document 1) is basically the same as that of the work tool 9, and the main member on which the bucket is placed is placed upward (to be precise, obliquely forward). The reinforcing member is provided to counter the load from above.

JP 2004-190447 A

  As a technical problem to be solved in the work machines including the above-mentioned timber processing machine and excavator, there is no extra space around the machine, so a collective storage space for storing tools such as a spanner, wrench, hammer, etc. Cannot be secured in a position where it can be easily and immediately put in and out.

  For this reason, the tools are placed in a special tool box and placed in the cabin 2, and are not easy to use and easily lost, or can only be handled with poor space efficiency.

  In view of the above, the present invention provides a work machine capable of utilizing the work tool as a storage space for tools, focusing on the fact that the work tool is located in front of the traveling frame, which is close to the worker. is there.

  As means for solving the above problems, in the present invention, a self-propelled lower traveling body, an upper revolving body mounted on the lower traveling body so as to be rotatable around an axis perpendicular to the ground, A working attachment attached to the swivel body, the lower traveling body having a traveling frame provided with traveling means, and a working tool that receives a load from the front or above when used on the front portion of the traveling frame. In the work machine provided to protrude forward of the traveling frame, the work tool is attached to the traveling frame, and left and right side walls as reinforcing members projecting forward on the left and right sides of the front surface of the mounting plate. The front plate attached to the front ends of the left and right side walls and the bottom wall attached across the lower ends of the left and right side walls provide a space for storing tools and the storage of the stored tools. Re is obtained by forming a box shape having a mouth.

  According to the present invention, a work tool provided on the front surface portion of the traveling frame (a work tool for wood alignment work in a timber processing machine according to claim 5) includes a space in which tools can be stored and an access port for stored tools. Since it is formed in a box shape having the above, this work tool can be used also as a storage space (tool holder) for tools.

  In addition, as described above, the work tool is provided near the front of the traveling frame, near the worker working around the machine, and at a height suitable for loading and unloading tools, and further protruding forward. Therefore, tools can be stored in a state in which they are most easily taken in and out.

  In addition, in order to configure the work tool from the beginning, there are a mounting plate for mounting the work tool on the traveling frame, left and right side walls as reinforcing members, and a front plate serving as a wood aligning plate in the case of a work tool for aligning wood. These parts are used, and the entire work tool is assembled in a box shape by adding a bottom wall to these parts, so that it can also be used as a tool case, so it is possible to ensure the original function of the work tool and the strength required for it. it can.

  In particular, by adding a bottom wall and configuring the whole in a box shape, it is possible to ensure strength higher than that of a conventional work tool.

  In this case, it is desirable to provide reinforcing ribs on the outer surfaces of the left and right side walls of the work tool in a state where the front end is fixed to the rear surface of the front plate and the rear end is fixed to the front surface of the mounting plate. ).

  If it carries out like this, a reinforcing effect will become remarkable by strengthening the effect | action of the point which can disperse | distribute each member of a mounting plate, a front board, and both right and left side walls simultaneously with a reinforcement rib, and a load to the whole work implement.

  In addition, since the reinforcing ribs are provided on the outer surfaces of the left and right side walls, there is no possibility that the space for storing the tools will be reduced or disturbed.

  The reinforcing ribs are preferably provided on both upper and lower sides of the outer surfaces of the left and right side walls.

  If it carries out like this, the reinforcement effect by a reinforcement rib can be heightened further.

  Furthermore, in the above configuration, it is desirable that lower reinforcing ribs are integrally provided on both the left and right sides of the bottom wall as an extension of the bottom wall.

  If it carries out like this, the attachment strength of a bottom wall can be especially heightened with a lower side reinforcement rib.

  According to the present invention, the work tool can be used as an easy-to-use tool case while ensuring the original function and strength of the work tool.

It is a partial exploded perspective view of the working tool concerning the embodiment of the present invention. It is an assembly perspective view of the working tool. It is a front view of the state which attached the work tool to the front surface of the traveling frame. It is the III-III line expanded sectional view of FIG. It is a schematic side view of the lumber processing machine which is a suitable example of this invention. It is an expanded sectional side view of the work tool attachment part of a timber processing machine. It is a partially cutaway perspective view of a conventional work tool.

  An embodiment of the present invention will be described with reference to FIGS.

  In the embodiment, a timber processing machine is applied in accordance with the description of the background art.

  In the embodiment, the following points are the same as the timber processing machine shown in FIG.

  (i) An upper revolving unit equipped with a cabin is mounted on a wheel-type lower traveling unit so as to be rotatable about an axis perpendicular to the ground, and a work attachment is attached to the upper revolving unit to A composed point.

  (ii) The work attachment consists of a boom that can be raised and lowered, an arm attached to the tip of the boom, and an openable / closable gripping tool provided at the tip of the arm. The work attachment is used to pile up timber (logs). Carrying work such as loading and unloading of trucks and trucks.

  (iii) The lower traveling body has a traveling frame 8 (shown in FIGS. 3 and 4) provided with wheels, and the work tool 15 projects forward in the center of the front surface of the traveling frame 8 in the vehicle width direction. A point provided vertically.

  The work tool 15 is basically a wood as a front plate on the front side of a mounting plate 16 attached to the front surface of the traveling frame 8 by bolting or the like, as in the conventional work tool 9 shown in FIGS. Alignment plate 17 (both square, usually a horizontally long rectangular plate as shown in the figure) is vertically mounted, and the wood alignment that pushes the cut end of timber W with wood alignment plate 17 by the self-propelling function of the machine Work is done.

  In the embodiment, the left and right side walls 18, 18 as reinforcing members for resisting a load acting on the wood alignment plate 17 from the front are between the mounting plate 16 and the wood alignment plate 17 and perpendicular to them. In the posture, it is attached in parallel with an interval, and a horizontal bottom wall 19 is attached across the lower ends of the left and right side walls 18, 18.

  Thus, the mounting plate 16, the wood alignment plate 17, the left and right side walls 18, 18 and the bottom wall 19 are used to accommodate the space S in which tools can be accommodated and the tool outlet / outlet (upper surface opening) 20. A box-like work tool 15 having a sword is assembled, and the space S is configured so that tools H such as a spanner, a wrench, and a hammer can be stored.

  That is, the work tool 15 can be used as a tool case.

  As further reinforcing means, reinforcing ribs 21 and 22 are provided on both upper and lower sides of the outer surfaces of the left and right side walls 18 and 18.

  The upper and lower reinforcing ribs 21 and 22 are each formed in an L shape when viewed from above, and the front end is fixed (welded) to the rear surface of the wood alignment plate 17 and the rear end is fixed to the front surface of the mounting plate 16. It is provided across the three states, that is, the mounting plate 16, the side wall 18, and the wood alignment plate 17.

  Here, the lower left and right reinforcing ribs 22, 22 are integrally provided on the left and right sides of the bottom wall 19 as an extension of the bottom wall 19.

  1, 2... Are a plurality of bolt holes provided on the left and right sides of the mounting plate 16. In FIGS. 3 and 4, 24 are bolts for mounting the mounting plate 16 to the traveling frame 8 by the bolt holes 23. It is.

  As shown in FIGS. 1, 2, and 4, the left and right side walls 18 and 18 are provided with window holes 25 that serve as steps for workers to get on and off the lower traveling body, as shown in FIG. 4. A drain hole 26 for draining water that has entered the work tool 15 is provided in the substantially central portion of the bottom wall 19.

  According to this configuration, the work tool 15 for performing the tree alignment work can also be used as a tool case.

  Here, the work tool 15 is provided at the front surface of the traveling frame 8 at a position close to a worker working around the machine at a height suitable for loading and unloading tools and further projecting forward. The tools H can be stored in a state in which they are most easily put in and out.

  In addition, parts originally constituting the work tool 15 such as the mounting plate 16 for attaching the work tool 15 to the traveling frame 8, the left and right side walls 18 and 18 as reinforcing members, and the wood alignment plate 17 are used. Furthermore, since the entire work tool is assembled in a box shape by adding the bottom wall 19 and can be used as a tool case, the original function of the work tool and the strength required for it can be ensured.

  In particular, by adding the bottom wall 19 and configuring the whole in a box shape, it is possible to ensure the strength higher than that of the conventional work tool 9 shown in FIGS.

  In addition, L-shaped reinforcing ribs 21 and 22 as viewed from above are fixed to the outer surfaces of the left and right side walls 18 and 18, the front end is fixed to the rear surface of the wood alignment plate 17, and the rear end is fixed to the front surface of the mounting plate 16. In other words, since it is provided across the mounting plate 16, the side wall 18, and the wood alignment plate 17, the reinforcing ribs 21, 22 support the mounting plate 16, the wood alignment plate 17, and the left and right side walls 18, 18. Reinforcing effects become significant by being able to reinforce each member at the same time and by strengthening the action of distributing the load throughout the work implement.

  Moreover, since the reinforcing ribs 21 and 22 are provided on the outer surfaces of the left and right side walls 18 and 18, there is no possibility that the space S for storing the tools H.

  Further, since the reinforcing ribs 21 and 22 are provided on both the upper and lower sides, the reinforcing effect can be further enhanced, and the lower left and right reinforcing ribs 22 are supported by the bottom wall 19 that supports the weight of the stored tool H. Since the lower reinforcing ribs 22 and 22 are integrally provided on the left and right sides of the bottom wall 19 as an extended portion of the bottom wall 19, the mounting strength of the bottom wall 19 can be particularly increased.

Other embodiments
(1) A lid for opening and closing the entrance / exit 20 may be provided on the upper surface of the work tool 15. The lid may be attached by a hinge so that it can be opened and closed in the front-rear direction or the left-right direction, or may be attached in a state of sliding in the front-rear direction or the left-right direction.

  (2) Reinforcing ribs may be provided at three locations on the outer surface of the left and right side walls 18, 18, an upper part, an intermediate part, and a lower part. Further, a vertical reinforcing rib may be provided across the upper and lower reinforcing ribs.

  (3) The present invention is not limited to a timber processing machine equipped with a work tool with a wood alignment plate that receives a load from the front, but a load from above (exactly obliquely above) as in the above-described “bucket placement”. It can also be applied to an excavator equipped with a working tool for receiving the work.

  In this case, in a work machine equipped with a “bucket holder”, a box shape suitable for placing a bucket, for example, the upper surfaces of the left and right side walls 18 and 18 are inclined forward and curved in accordance with the bucket bottom surface. It is desirable to form in a box shape or the like.

  The present invention is not limited to a wheel-type work machine, and is a crawler-type work machine that is self-propelled by a crawler, and can be applied to a work machine that includes a work tool on the front surface of a travel frame.

DESCRIPTION OF SYMBOLS 1 Lower traveling body 3 Upper turning body A Work attachment 8 Traveling frame of lower traveling body 15 Working tool 16 Mounting plate 17 Wood alignment plate as front plate 18, 18 Left and right both side walls 19 Bottom wall 20 Working tool loading / unloading port S Working tool Inside space H Tools 21 Upper reinforcement rib 22 Lower reinforcement rib W Timber

Claims (5)

  A self-propelled lower traveling body, an upper revolving body mounted on the lower traveling body so as to be rotatable around an axis perpendicular to the ground, and a work attachment attached to the upper revolving body, In the working machine in which the lower traveling body includes a traveling frame provided with traveling means, and a work tool that receives a load from the front or above when used in a front surface portion of the traveling frame is provided to protrude forward of the traveling frame. A mounting plate for mounting the work tool on the traveling frame, left and right side walls as reinforcing members projecting forward on the left and right sides of the front surface of the mounting plate, and a front plate mounted on the front ends of the left and right side walls And a bottom wall that is mounted across the lower ends of the left and right side walls, and is formed into a box shape having a space in which tools can be stored and a slot for the stored tools. Work machine that.   The reinforcing rib is provided on the outer surface of the left and right side walls of the working tool, with the front end fixed to the rear surface of the front plate and the rear end fixed to the front surface of the mounting plate, respectively. Working machine.   3. The work machine according to claim 2, wherein the reinforcing ribs are provided on both upper and lower sides of the outer surfaces of the left and right side walls.   4. The work machine according to claim 3, wherein the lower reinforcing rib is integrally provided on both the left and right sides of the bottom wall as an extension of the bottom wall.   A wood alignment plate that pushes and aligns the cut ends of timber stacked in a pile shape is vertically attached to the front of the mounting plate as a front plate of the working tool via a reinforcing member. The work machine according to any one of 4.

Images