JP5753511B2 - Cab for dismantling machine and cab guard used therefor - Google Patents

Description

  The present invention relates to a cab for a demolition machine and a cab guard used therefor, and more particularly, to a cab for a demolition machine used in a demolition work in which dust or crushed material is scattered and a cab guard used therefor.

  Some demolition machines used in demolition work in which dust, crushed materials, and the like are scattered have a cab guard attached to the cab body to protect the window portion of the cab body from the scattered objects. In order to improve the maintainability of the front window of the cab body and facilitate the removal of the front guard (cab guard) from the cab body, the front guard can be moved along the guide rail, and the front guard can be moved from the guide rail. A detachable cab has been proposed (see, for example, Patent Document 1).

JP 2006-316429 A

  In the cab described in Patent Document 1 described above, the handrail for raising and lowering is attached to the front end side portion of the cab body so as to be located in the gap between the front window of the cab body and the front guard. . For this reason, when cleaning the front window, there is a problem that it is difficult to insert a hand or a cleaning tool through the gap between the cab body and the front guard.

  Therefore, when cleaning the front window of the cab body, the front guard is moved to the skylight side along the guide rail. However, there is a problem that moving the front guard in this way is very time-consuming.

  Also, in order to make it easier to insert a hand or cleaning tool through the gap between the cab body and the front guard, it is conceivable to form a handrail for raising and lowering so that it protrudes forward from the front guard. There is a problem that it is difficult for the handrail to reach the handrail and the elevating performance is deteriorated.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to use a cab for a dismantling machine that can easily clean the front window without sacrificing the elevating ability to the cab. A cab guard is provided.

In order to achieve the above object, the first invention includes an upper front guard that protects the upper front window of the cab body from scattered objects, and a lower front guard that protects the lower front window of the cab body from scattered objects. A cab for a dismantling machine that is fixed to the cab main body and provided with a door for getting on and off to one side of the cab main body, wherein the lower front guard includes an upper frame, a lower frame, and the upper frame A door side upper frame having one end joined to the door side end, a door side lower frame having one end joined to the door side end of the lower frame, and the door side Provided between the upper side frame and the lower side frame of the door side, the handrail member that also serves as the side frame of the door side, and both ends of the upper frame and the lower frame on the opposite side of the door with anti-door side of the side frame joined respectively and a frame body composed of, and a vertical plate member for connecting the lower frame and the upper frame It is characterized in.

  Further, according to a second aspect, in the first aspect, the lower front guard is provided on the side frame on the opposite door side, the upper side frame on the door side, and the lower side frame on the door side, respectively. It is provided with the provided bracket, and the bolt hole which is provided in the bracket and into which the bolt for fixing to the cab body is inserted.

  Furthermore, a third invention is characterized in that, in the first or second invention, the handrail member is a cylindrical body.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the upper front guard has one end joined to an upper frame, a lower frame, and an end of the upper frame on the door side. A door-side upper frame, a door-side lower frame joined at one end to the door-side end of the lower frame, the door-side upper frame and the door-side lower frame; disposed between, is composed of a handrail member also serving as a side frame of the door side, the upper frame and the counter-door side side frame formed by joining both end portions respectively to the opposite end of the door of the lower frame and And a vertical plate member that connects the upper frame and the lower frame.

Furthermore, the fifth invention is a cab guard having an upper front guard and a lower front guard, which is used in a cab for a dismantling machine provided with a door for getting on and off on one side surface. An upper frame, a lower frame, a door-side upper frame joined at one end to the door-side end of the upper frame, and a door joined at one end to the door-side end of the lower frame A lower side frame, a door side upper frame, and a door side lower frame, a handrail member also serving as a door side frame , the upper frame and the lower frame A frame body constituted by a side frame on the opposite door side in which both end portions are joined to the opposite end portion of the door, and a vertical plate member that connects the upper frame and the lower frame. Features.

  According to the present invention, since the handrail member is provided as a part of the side frame on the door side of the lower front guard, the hand can easily reach the handrail member when the operator gets on the cab body. Further, a clearance for cleaning is secured between the front side of the cab body and the lower front guard. As a result, it is possible to easily clean the lower front window of the cab without sacrificing the elevating ability to the cab.

It is a side view of a demolition machine provided with one embodiment of a cab for demolition machines of the present invention. It is a side view which expands and shows one Embodiment of the cab for dismantling machines of this invention in the dismantling machine shown in FIG. It is a front view which expands and shows one Embodiment of the cab for dismantling machines of this invention shown in FIG. It is the top view which looked at the upper front guard which comprises one Embodiment of the cab for dismantling machines of this invention from the IV-IV arrow of FIG. It is a perspective view which shows the lower front guard which comprises one Embodiment of the cab for dismantling machines of this invention shown in FIG. It is a perspective view which expands and shows a part of lower front guard which comprises one Embodiment of the cab for dismantling machines of this invention shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a cab for a dismantling machine and a cab guard used therefor will be described with reference to the drawings.

  1 to 6 show an embodiment of a cab for a dismantling machine according to the present invention and a cab guard used therefor. FIG. 1 shows a dismantling machine equipped with an embodiment of a cab for a dismantling machine according to the present invention. FIG.

  In FIG. 1, the dismantling machine 1 includes a traveling body 2 capable of self-propelling, a revolving body 3 installed on the traveling body 2 so as to be capable of turning, and a work front 4 provided on the revolving body 3 so as to be able to be lifted and lowered. Yes.

  A cab 5 that is operated by an operator is provided on the front side (left side in FIG. 1) of the revolving structure 3. A hydraulic power unit 6, a counterweight 7, and the like are provided on the rear side (the right side in FIG. 1) of the swing body 3. A side step 3 a for raising and lowering is provided at the front side of the revolving structure 3. A front step 3 b for cleaning is provided at the front end of the revolving structure 3.

  The work front 4 includes a first boom 8 attached to the swing body 3 so as to be lifted and lowered by a hydraulic cylinder 8a, a second boom 9 attached to the first boom 8 so as to be rotatable by a hydraulic cylinder 9a, and hydraulic pressure. An arm 10 attached to the second boom 9 so as to be rotatable by a cylinder 10a, and a disassembly claw 11 provided at the tip of the arm 10 are provided.

  A cab guard 12 for protecting the cab 5 is installed on the front side of the cab 5.

  Next, an embodiment of the cab guard of the present invention and a cab for a dismantling machine equipped with the cab guard will be described in more detail with reference to FIGS.

  2 is an enlarged side view showing an embodiment of the cab for the demolition machine of the present invention in the demolition machine shown in FIG. 1, and FIG. 3 is an embodiment of the cab for the demolition machine of the present invention shown in FIG. 4 is an enlarged front view, FIG. 4 is a plan view of the upper front guard constituting the embodiment of the cab for the dismantling machine of the present invention as seen from the direction of arrows IV-IV in FIG. 3, and FIG. 5 is shown in FIG. The perspective view which shows the lower front guard which comprises one Embodiment of the cab for demolishing machines of this invention, FIG. 6: The lower front guard which comprises one Embodiment of the cab for demolishing machines of this invention shown in FIG. It is a perspective view which expands and shows a part of. 2 to 6, the same reference numerals as those in FIG. 1 are given the same reference numerals, and the description thereof is omitted. FIG. 2 shows a state where the door of the cab body is opened.

  In FIG. 2, the cab 5 includes a cab main body 13 in which a seat (not shown) for operation by an operator, an operation lever and the like (not shown) are provided. A cab guard 12 is provided on a skylight and a front window (not shown) of the cab body 13 to protect the collision of scattered objects.

  The side of the cab body 13 opposite to the work front 4 side (see FIG. 1) is provided with a door 13a for getting into and out of the cab body 13, and the door 13a inside the cab body 13 is for raising and lowering. A handrail 13b is provided.

  2 and 3, the cab guard 12 is fixed to the upper surface side of the cab main body 13 to protect the skylight, and the upper front guard fixed to the upper front portion of the cab main body 13 to protect the upper front window. A guard 15 and a lower front guard 16 that is positioned below the upper front guard 15 and is fixed to the lower front surface of the cab body 13 and protects the lower front window are provided.

  The skylight guard 14 is formed so as to cover the upper surface of the cab body 13 and the upper end of the front surface.

  First, the structure of the upper front guard 15 described above will be described. As shown in FIG. 3, the upper front guard 15 is composed of a rectangular frame 17 and a plurality of flat plates joined in a lattice form in the frame 17 by welding. It comprises a vertical plate member 18 and a plurality of flat horizontal plate members 19.

  The frame 17 includes an upper frame 20 having an L-shaped cross section, a lower frame 21 having an L-shaped cross section, and both ends of the upper frame 20 and the lower frame 21 opposite to the door 13a of the cab body 13 (left side in FIG. 3). The side frame 22 on the side opposite to the door having an L-shaped cross section joined to each part, and the crossing joined to both ends of the upper frame 20 and the lower frame 21 on the door 13a side (right side in FIG. 3) of the cab body 13 respectively. It is comprised with the side frame 23 on the door side of the surface L shape. As shown in FIG. 2, brackets 24 are provided on the upper and lower ends of the side frame 22 on the door side and the side frame 23 on the door side, respectively.

  The upper front guard 15 is fixed to the cab body 13 by attaching the bracket 24 to a mounting seat 13 d provided on the front frame 13 c of the cab body 13.

  As shown in FIGS. 2 to 4, a guard-side handrail 25 is attached to the side surface of the side frame 23 on the door side of the upper front guard 15 with a bolt 26 and a nut 27. A handrail portion 25a of the guard-side handrail 25 is formed so as to project outward from the front side of the side frame 23 on the door side.

  For this reason, as shown in FIG. 2, a clearance S1 for cleaning is secured between the front surface of the cab body 13 and the upper front guard 15, and the cleaning operator on the front step 3b opens the cab from the clearance S1. The upper front window of the main body 13 can be easily cleaned.

  Further, by using the guard-side handrail 25 attached to the upper front guard 15 and the handrail 13b of the cab body 13, the operator can descend from the cab body 13 to the side of the demolition machine 1 through the side step 3a. Become.

  Next, the configuration of the lower front guard 16 described above will be described. As shown in FIGS. 5 and 6, the lower front guard 16 is arranged in parallel with a rectangular frame 28 and a frame 28 with a gap therebetween. The upper frame 30 and the lower frame 31, which will be described later, are composed of a plurality of flat plate-like vertical plate members 29.

  The frame 28 includes an upper frame 30 having an L-shaped cross section, a lower frame 31 having an L-shaped cross section, and ends of the upper frame 30 and the lower frame 31 opposite to the door 13a of the cab body 13 (left side in FIG. 5). The side frame 32 on the side opposite to the door having an L-shaped cross-section with both ends joined to each other and the end on the door 13a side (the right side in FIG. 5) of the cab body 13 in the upper frame 30 An upper side frame 33 on the door side of the L-shaped surface, and a lower side frame 34 on the door side of the L-shaped cross section in which one end on the lower side is joined to the end of the cab body 13 of the lower frame 31 on the door 13a side. The door side upper side frame 33 and the door side lower side frame 34 are joined to each other and are configured by a handrail member 35 that also serves as the door side side frame.

  As shown in FIG. 5, brackets 36 are joined to the upper and lower ends of the side frame 32 on the non-door side, the upper side frame 33 on the door side, and the lower side frame 34 on the door side by welding. Insertion holes 32a, 33a, and 34a are formed in the upper and lower ends of the side frame 32 on the non-door side, the upper side frame 33 on the door side, and the lower side frame 34 on the door side, respectively.

  The handrail member 35 is a hollow cylindrical body, and is a pipe in this example. As shown in FIG. 6, the handrail member 35 has an upper end at the insertion hole 33 a of the door-side upper frame 33 and a lower end at the insertion hole 34 a of the door-side lower frame 34. The inner side surface of the door-side upper side frame 33, the inner side surface of the door-side lower side frame 34, and the outer peripheral surface in the vicinity of both end portions of the handrail member 35 are welded.

  As shown in FIGS. 2, 5, and 6, the lower front guard 16 has insertion holes 32a, 33a in the side frame 32 on the door side, the upper side frame 33 on the door side, and the lower side frame 34 on the door side. , 34a is inserted into a bolt hole 36a provided in the bracket 36 and a mounting hole (not shown) of a mounting seat 13d provided in the front frame 13c of the cab body 13, and is welded to the mounting seat 13d. The nut 39 is fastened to the cab body 13 by fastening.

  In the embodiment of the cab for the dismantling machine of the present invention described above, as shown in FIG. 2, when the operator gets on the dismantling machine 1, the handrail member 35 of the lower front guard 16 is attached to the door of the cab main body 13. By using 13a together with the handrail 13b of the cab body 13 that appears in an open state, the operator can get into the cab 5 from the side via the side step 3a. At this time, since the handrail member 35 is provided as a part of the side frame on the door side of the lower front guard 16, the handrail member 35 protrudes forward (left side in FIG. 2) with respect to the lower front guard 16. No, the distance between the handrail member 35 and the handrail 13b of the cab main body 13 is not excessively widened, and the lifting and lowering of the operator to the cab 5 is not impaired.

  Moreover, according to one embodiment of the cab for the dismantling machine of the present invention described above, the handrail member 35 serves as a side frame on the door side of the lower front guard 16, and the cab body 13 and the lower front guard 16 Since a clearance S2 for cleaning is secured between them, the cleaning operator can easily clean the lower front window of the cab body 13 from the clearance S2.

  Furthermore, since the lower front guard 16 is provided with the handrail member 35 that also serves as a guard, there is no need to attach a handrail separately, the number of parts can be reduced, the structure of the cab 5 can be simplified, and the manufacturing cost can be reduced. Reduction can be achieved.

  In addition, since a hollow cylindrical body is used for the handrail member 35, the construction is inexpensive.

  Further, a bracket 36 is provided on each of the side frame 32 on the side opposite to the door of the lower front guard 16, the upper side frame 33 on the door side, and the lower side frame 34 on the door side, and the bracket 36 is fixed to the cab body 13. Since the bolt hole 36 a is provided, the lower front guard 16 can be easily fixed to the cab body 13 by the bolt 38.

  In the embodiment described above, the cab for the dismantling machine has been mainly described, but the same effect as described above can be obtained also in the cab guard used for this.

  In the present embodiment, the handrail member 35 is a hollow cylindrical body, but a solid bar member having a circular cross section can be used as the handrail member. In addition, if the handrail member that also serves as a side frame on the door side of the lower front guard 16 has strength to protect the cab body 13 from scattered objects, the handrail member has a hollow shape such as an elliptical cross section or a polygonal shape. A member can be used.

  In the present embodiment, an example in which the guard-side handrail 25 is attached to the door-side side frame 23 of the upper front guard 15 is shown. The guard-side handrail 25 may be attached to the door-side side frame 23 as follows.

  The door-side side frame 23 of the upper front guard 15 is similar to the door-side side frame of the lower front guard 16, and the door-side upper side frame in which one end is joined to the end of the upper frame 20 on the door 13 a side. And a door-side lower frame whose one end is joined to an end of the lower frame 21 on the door 13a side, and a door-side upper frame and a door-side lower frame are joined and provided. It can comprise with a handrail member. Also in this case, the same effects as those of the embodiment of the cab for the dismantling machine of the present invention and the cab guard used therefor can be obtained.

  In the present embodiment, the upper front guard 15 and the lower front guard 16 are fixed to the cab body 13 without being fixed to each other, but the lower frame 21 and the lower front guard 16 of the upper front guard 15 are fixed. The upper front guard 15 and the lower front guard 16 can be fixed to the cab body 13 in a state in which the upper frame 30 is coupled by bolt fastening or the like.

DESCRIPTION OF SYMBOLS 1 Demolition machine 5 Cab 12 Cab guard 13 Cab main body 13a Door 15 Upper front guard 16 Lower front guard 18, 29 Vertical plate members 20, 30 Upper frame 21, 31 Lower frame 22, 32 Anti-door side frame 33 Door side Upper side frame 34 Door side lower side frame 35 Handrail member 36 Bracket 36a Bolt hole 38 Bolt

Claims (5)

An upper front guard that protects the upper front window of the cab body from scattered objects and a lower front guard that protects the lower front window of the cab body from scattered objects are fixed to the cab body, and one side of the cab body A cab for a dismantling machine provided with a door for getting on and off the side of
The lower front guard is
An upper frame, a lower frame, a door-side upper frame joined at one end to the door-side end of the upper frame, and a door side joined at one end to the door-side end of the lower frame A handrail member provided between the lower side frame, the door side upper side frame and the door side lower side frame, which also serves as the door side side frame, and the upper frame and the lower frame A frame composed of a side frame on the opposite side of the door joined to both ends of the opposite side of the door;
A cab for a dismantling machine, comprising a vertical plate member that connects the upper frame and the lower frame. The cab for a demolition machine according to claim 1,
The lower front guard is a bracket provided on each of the side frame on the opposite door side, the upper side frame on the door side, and the lower side frame on the door side,
A cab for a dismantling machine, comprising: a bolt hole provided in the bracket and into which a bolt for fixing to the cab body is inserted. In the cab for a demolition machine according to claim 1 or 2,
The dismantling machine cab, wherein the handrail member is a cylindrical body. The cab for a demolition machine according to any one of claims 1 to 3,
The upper front guard is
An upper frame, a lower frame, a door-side upper frame joined at one end to the door-side end of the upper frame, and a door side joined at one end to the door-side end of the lower frame A handrail member provided between the lower side frame, the door side upper side frame and the door side lower side frame, which also serves as the door side side frame, and the upper frame and the lower frame A frame composed of a side frame on the opposite side of the door joined to both ends of the opposite side of the door;
A cab for a dismantling machine, comprising a vertical plate member that connects the upper frame and the lower frame. In a cab guard having an upper front guard and a lower front guard, which is used in a cab for a dismantling machine provided with a door for getting on and off the side of one side,
The lower front guard is
An upper frame, a lower frame, a door-side upper frame joined at one end to the door-side end of the upper frame, and a door side joined at one end to the door-side end of the lower frame A handrail member provided between the lower side frame, the door side upper side frame and the door side lower side frame, which also serves as the door side side frame, and the upper frame and the lower frame A frame composed of a side frame on the opposite side of the door joined to both ends of the opposite side of the door;
A cab guard comprising a vertical plate member connecting the upper frame and the lower frame.

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