JP2010065436A - Cabin device of loader work machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the strength of a porous plate of a side window, and to reduce a collision of a stone etc. <P>SOLUTION: This cabin device 7 is mounted on a machine body frame 4 between a pair of right and left arms 5. In the cabin device 7, a roof 11, a front window 12 and a back window 13 are formed between a pair of right and left cabin frames 10; and the side window 14 is formed in each of the right and left cabin frames 10. Each of the right and left cabin frames 10 is formed in a gate shape in a lateral view; an outward recess 10A is provided inside the frame; and the side window 14 comprises the porous plate 17 which has a large number of through-holes 17a and which is arranged on an outdoor side, and a see-through material 18 which is arranged on an indoor side. The porous plate 17 comprises a porous surface portion 17A which has the through-hole 17a, a peripheral wall portion 17B which is bent to the indoor side on the outer periphery of the porous surface portion 17A, and a peripheral edge 17C which is bent toward the outside of the frame from the indoor side end of the peripheral wall portion 17B and fixed to the recess 10A of the cabin frame 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cabin device for a loader working machine such as a truck loader or a skid loader.

In this type of prior art, a pair of left and right arms are supported to be raised and lowered at the rear part of the body frame having the left and right traveling devices, and a working tool is provided at the tip of the left and right arms, and between the left and right arms and on the body frame. A cabin device is mounted, and the cabin device has a perforated plate having a large number of through holes attached to the side window so as not to project anything outward from the side window. A punching metal or the like in which a through hole is drilled in a plate is used (for example, see Patent Document 1).
US Pat. No. 7,264,435 B2

The perforated plate of the prior art side window is a flat plate, the strength of itself is low, and it can be partially bent inward and outward, but more than the surrounding part If the central portion protrudes outward, that portion of the perforated plate protrudes outward from the outer peripheral portion of the side surface of the cabin device, and stones or the like may collide and be damaged.
An object of the present invention is to provide a loader working machine cabin device capable of solving the problems of the prior art.
An object of the present invention is to provide a cabin device for a loader working machine that can improve the strength of a perforated plate of a side window and reduce the collision of stones and the like.

Specific means for solving the problems in the present invention are as follows.
First, a pair of left and right arms 5 is supported at the rear of the body frame 4 having the left and right traveling devices 3 so as to be movable up and down, and a working tool 6 is provided at the distal ends of the left and right arms 5. 4 is equipped with cabin device 7
The cabin device 7 has a roof 11, a front window 12 and a back window 13 formed between a pair of left and right cabin frames 10, and side windows 14 are formed in the left and right cabin frames 10, respectively. The side window 14 has an outward facing recess 10A inside the frame, and the side window 14 has a large number of through holes 17a and a perforated plate 17 arranged on the outdoor side and the indoor side. And a transparent see-through material 18 disposed on the
The perforated plate 17 is bent outward from the perimeter of a porous surface portion 17A having a through-hole 17a, a peripheral wall portion 17B bent to the indoor side at the outer peripheral portion of the porous surface portion 17A, and an indoor side end of the peripheral wall portion 17B. And a peripheral edge portion 17C fixed to the concave portion 10A of the cabin frame 10.

Second, the depth Ad of the recessed portion 10A of each cabin frame 10 and the width Bt of the peripheral wall portion 17B of the porous plate 17 are substantially matched, or the outdoor surface of each cabin frame 10 and the porous surface portion 17A The outdoor surface is arranged substantially flush with the outdoor surface.
Third, the fluoroscopic material 18 is disposed on the inner peripheral side of the peripheral wall portion 17B of the porous plate 17 and within the width Bt of the peripheral wall portion 17B,
The see-through material 18 has a sliding door 19 facing the upper half of the porous surface portion 17A, and a fitting killing plate 20 facing the lower half,
The upper and lower sashes 21 of the sliding door 19 are provided in the upper part of the porous surface part 17A and the upper and lower halfway parts.
[Action]
The loader working machine cabin device having the above-described features has the following effects.

  The perforated plate 17 forming the side window 14 of the cabin device 7 includes a peripheral wall portion 17B bent to the indoor side at the outer peripheral portion of the porous surface portion 17A having a through hole 17a, and an end on the indoor side of the peripheral wall portion 17B. Since the peripheral edge portion 17C bent outwardly of the frame is formed, the strength can be improved by the bent shape over the periphery, and the cabin frame 10 has a concave portion 10A facing outward on the inner side of the frame. Even if the porous surface portion 17A is positioned on the outdoor side by the width Bt of the peripheral wall portion 17B from the peripheral edge portion 17C, the protrusion amount of the porous surface portion 17A from the outdoor surface of the cabin frame 10 is fixed by fixing the peripheral edge portion 17C to the concave portion 10A. Therefore, it is possible to reduce the impact of stones or the like on the porous surface portion 17A.

In the porous surface portion 17A, the depth Ad of the recessed portion 10A and the width Bt of the peripheral wall portion 17B are substantially coincided with each other, or the outdoor surface of the cabin frame 10 and the outdoor surface of the porous surface portion 17A are disposed substantially flush with each other. Accordingly, the amount of protrusion of the porous surface portion 17A from the outdoor surface of the cabin frame 10 can be reduced or reduced as much as possible while widening the left and right spaces in the cabin device 7 as much as possible.
By using the upper half of the see-through material 18 as the sliding door 19, ventilation in the cabin device 7 is possible, and by providing the upper and lower sashes 21 for the sliding door 19 on the upper part and the upper and lower halfway part of the porous surface part 17A, The strength of the porous plate 17 can be further increased.

  ADVANTAGE OF THE INVENTION According to this invention, while improving the intensity | strength of the perforated panel of a side window, the collision of a stone etc. can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, a truck loader is illustrated as the loader working machine 1, and this truck loader 1 mounts a pair of left and right traveling devices 3 on the body frame 4, and excavation work, lifting work, etc. at the rear part of the body frame 4. A loader working device 2 for performing the above is mounted, and a cabin device (driver protection device) 7 that surrounds the cab is mounted on the front upper part.
The body frame 4 is composed of an iron plate or the like, and includes a box-shaped frame body 26 having left and right side plates, a bottom plate, and a front plate, and a pair of left and right box-shaped support frames 27 welded to the rear end side of the frame body 26. The engine and the hydraulic pump are mounted on the frame body 26, and the base side of the loader work device 2 is supported on the left and right support frame 27.

In each of the left and right traveling devices 3, a hydraulic traveling motor and a track frame 28 are fixed to a frame body 26, a driving wheel 30 is mounted on a driving shaft 29 of the traveling motor, and front and rear driven wheels 31, 32 are mounted on the track frame 28. A plurality of rolling wheels 33 are supported, and a crawler 34 is wound around the driving wheels 30, the front and rear driven wheels 31 and 32, and the plurality of rolling wheels 33.
The fenders 35 that cover the upper and rear sides of the traveling device 3 are welded to the left and right side plates of the frame main body 26, and the box-shaped support frame 27 is welded to the fender 35 and the side plates of the frame main body 26. The track frame 28 is welded to the left and right side plates of the frame body 26 or is bolted.

In the loader work device 2, the base portions of the support link 37 and the control link 38 are pivotally supported by the left and right support frame bodies 27, and the base side of the arm 5 is pivotally connected to the free ends of the support link 37 and the control link 38. A work tool 6 such as a bucket is pivotally connected to the distal ends of the left and right arms 5, and the arm 5 can be moved up and down by an arm cylinder 39. ) Freedom.
The bases of the support link 37 and the arm cylinder 39 are inserted into a box-shaped support frame 27.

The base portion of the support link 37 is supported on the rear upper portion of the support frame body 27 via a support shaft 41 positioned at approximately half the height of the track loader 1, and the base portion of the control link 38 is the front end of the support frame body 27. It is supported via a link shaft 42 at a position substantially the same as or slightly higher than the support shaft 41 (in the longitudinal direction of the body frame 4), and the base of the arm cylinder 39 is near the bottom of the body frame 4 lower than the drive shaft 29. And is supported via a cylinder shaft 43 positioned slightly in front of the support shaft 41.
The pair of left and right arms 5 are respectively connected at the base side (rear part) by a connecting rod 45 at the front end (front end) formed by a deformed pipe, and at the rear end side from the connecting rod 45, the support link 37 is connected to the free end (upper part) of the arm cylinder 39 via the support pin 46, and is connected to the free end (upper part) of the arm cylinder 39 via the cylinder pin 47 on the front side of the connecting rod 45. The inner wall of each of the left and right arms 5 projects downward from the outer wall, and the free end of the control link 38 is connected to the projecting portion 5a via a link pin 48.

The connecting rod 45 and the cylinder pin 47 are arranged substantially linearly forward with respect to the support pin 46, and the link pin 48 is triangularly arranged with respect to the support pin 46 and the cylinder pin 47.
The left and right arms 5 are bent downward in the vicinity of the tip, and a lower portion of a mounting body 51 on which the work tool 6 is detachably mounted is pivotally supported at the tip end via a horizontal shaft 50. A cylinder rod of the work tool cylinder 40 provided on the left and right arms 5 is connected to the middle portion via a connection pin 52, and the mounting body 51 is movable up and down by the expansion and contraction operation of the work tool cylinder 40.

The work tool 6 has an upper hooking portion 53 and a lower mounting receiving portion 54 on the back surface, and the mounting body 51 includes an engaging portion 55 for hooking the upper hooking portion 53 of the work tool 6, and a lower portion. And a connecting portion 56 that faces the mounting receiving portion 54, and is connected in a state where the engaging portion 55 is hooked on the upper hooking portion 53 and the connecting portion 56 is opposed to the lower mounting receiving portion 54. A lock mechanism (not shown) that locks the mounting state of the work tool 6 on the mounting body 51 is provided through the portion 56 and the lower mounting receiving portion 54 so as to be detachably inserted.
In the loader work device 2, the state where the work tool 6 shown in FIG. 1 is grounded is the excavation work state. In this excavation work state, the left and right arms 5 are in the lowest position, the control link 38 is gently lifted from the link shaft 42, and the connecting member 44 is in contact with the stopper 4 </ b> A provided on the front surface of the body frame 4. Then, it moves forward and thrusts into the earth and sand with the work tool 6, and the impact is received by the body frame 4.

When the arm cylinder 39 is extended from the excavation work state, the arm 5 is raised on the front side around the base side while the support link 37 is swung back and forth, and the earth and sand collected by the work tool 6 is lifted.
The control link 38 constitutes a four-bar linkage mechanism together with the support link 37 and controls the rising posture of the arm 5. Even if the support link 37 swings backward, the rear end of the upper end thereof is substantially flush with the back surface of the loader work machine 1 so that it does not protrude rearward, and the control link 38 can swing. Even when the angle is smaller than 90 degrees and the arm 5 is in the uppermost posture, the posture is slightly inclined after the vertical posture so that the load applied to the arm 5 can be sufficiently supported.

The arm cylinder 39 intersects with the control link 38 when the arm 5 is in the lowest position, is in a position substantially orthogonal to the arm 5, and is set so as to exhibit the maximum lift when ascending from the lowest position. .
The cabin device 7 is mounted between the left and right arms 5 and on the frame body 26 of the body frame 4, and a stay 61 is provided on the upper surface of a connecting member 60 that connects the upper portions of the left and right support frames 27 above the engine. The bracket 62 is provided on the back surface of the cabin device 7, and the bracket 62 is pivotally supported on the stay 61 via a lateral pin 63.

The cabin device 7 is provided with a damper between the rear portion thereof and the support frame 27, and is rotated so as to lift the front portion around the lateral pin 63 when performing maintenance in the machine body frame 4.
The cabin device 7 is shown in detail in FIGS.
The cabin device 7 forms a roof 11, a front window 12 and a back window 13 between a pair of left and right cabin frames 10, and forms side windows 14 in the left and right cabin frames 10, and the left and right cabin frames 10 and side windows 14 are formed. A lower component 66 having a floor seat 65 is attached to the lower portion of the back window 13 and the rear portion of the floor seat 65 is raised to constitute the lower half of the back surface of the cabin device 7. Seat 67 is installed.

The roof 11 is formed of sheet metal, and both left and right ends are fixed to the cabin frame 10, a porous portion 11 </ b> A having a large number of through holes 11 a is formed at the front portion, and an eave portion 11 </ b> B is formed at the front end. . A see-through material such as glass is attached to the inner surface side of the porous portion 11A to open the upper field of view while preventing rainwater from entering.
The front window 12 is formed by attaching a see-through material such as glass or a plastic plate to a window frame, and although not shown in detail, it constitutes a door that can be opened and closed in the vertical direction. The upper portion of the front window 12 is supported by an upper rail provided on the upper inner surface of the cabin frame 10 so as to be movable forward and backward, and the lower portion is supported by a front rail provided on the inner surface of the front portion of the cabin frame 10 so as to be movable up and down.

The front window 12 moves with the assistance of a link mechanism provided between the middle part in the vertical direction and the cabin frame 10 to move the upper part rearward and the lower part upward from the posture in which the front of the driver's seat 67 is closed. In the open state, the door 11 is stored substantially parallel to the lower side of the roof 11.
The back window 13 is disposed between the left and right cabin frames 10 between the rear end of the roof 11 and the upper end of the floor sheet 65, and a transparent material such as glass is attached to the window frame. 10 is an open / close window that pivots to 10 and swings the lower part rearward and upward. The back window 13 may have a fitting structure.

The floor seat 65 is equipped with a driver's seat 67, and a device base 68 for attaching a control device to the left and right sides of the driver's seat 67 is also provided. Then, the bottom of the cabin device 7 is open.
The step for the driver who sits on the driver's seat 67 is provided in the front portion of the frame body 26, and the driver stands in that step and opens the front window 12 to get on and off the cabin device 7. It is like that.
Each of the left and right cabin frames 10 is formed by forming a pipe material into a side-view portal shape, and the cross-sectional shape thereof is an arcuate surface 10B having a rounded chamfer on the outer side of the frame, and is directed outwardly to the inner side of the subsequent frame. The inner surface 10C and the inner surface 10D of the left-right direction have a flat surface, and the recess 10A and the inner surface 10D of the frame are adjacent to each other in a stepped manner.

The side window 14 is disposed on the inner side of the recess 10A of the cabin frame 10, has a plurality of through holes 17a and is disposed on the outdoor side, and a transparent see-through material 18 is disposed on the indoor side. Have
The porous plate 17 is formed by punching an iron plate or made of punching metal or the like. The porous surface portion 17A is formed by a through hole 17a and vertical and horizontal lattice portions 17b between the through holes 17a, and the outer periphery of the porous surface portion 17A. The peripheral wall portion 17B bent to the indoor side at the portion, and bent outwardly from the indoor side end of the peripheral wall portion 17B, and fixed to the concave portion 10A of the cabin frame 10 via a fastener such as welding or a bolt. And a peripheral edge portion 17C.

The porous surface portion 17A has a zone in which a through hole 17a is formed vertically divided, and an upper and lower end portion and a holeless zone 17c in which no through hole 17a is formed in the middle between the upper and lower ends.
The peripheral wall portion 17B and the peripheral edge portion 17C are formed on the entire periphery of the porous surface portion 17A, at least on three sides corresponding to the portal-type cabin frame 10, and the peripheral wall portion 17B is formed with respect to the porous surface portion 17A and the peripheral edge portion 17C. Although bent at a right angle, it may be bent at an obtuse angle, and the porous surface portion 17A and the peripheral edge portion 17C are preferably parallel to each other.
The depth Ad of the recessed portion 10A of the cabin frame 10 and the width Bt of the peripheral wall portion 17B of the porous plate 17 are substantially the same, and the outdoor surface of the porous surface portion 17A is defined as the outdoor surface (arc surface) of each cabin frame 10. 10B). Thereby, even if a stone falls from above, the cabin frame 10 protects the porous surface portion 17A from being damaged.

The see-through material 18 is formed of a transparent glass or plastic plate, and is disposed on the inner peripheral side of the peripheral wall portion 17B of the perforated plate 17 and within the width Bt of the peripheral wall portion 17B, and faces the upper half of the porous surface portion 17A. It has the sliding door 19 and the fitting killing board 20 which opposes a lower half.
The sliding door 19 has the upper and lower sashes 21 fixed to the upper end of the porous surface portion 17A and the inner surface of the intermediate holeless zone 17c, and supports the two see-through plates 18A on the upper and lower sashes 21 so that they can be moved in a sliding manner. The sliding door 19 has front and rear sashes that connect the front and rear ends of the upper and lower sashes 21, and is formed in a square shape.

The upper part of the rectangular frame 22 to which the one see-through plate 18A of the fitting killing plate 20 is attached is integrally formed with the lower sash 21, but may be formed separately and fixed to the porous surface portion 17A.
The sliding door 19 and the mating killing plate 20 are housed in the concave portion of the perforated plate 17 formed by forming the peripheral wall portion 17B in the indoor / outdoor direction, and the cabin frame 10 having the concave portion 10A formed therein. It will be arranged on the inner peripheral side, and not only will collisions such as falling rocks be avoided, it will also contribute to widening the left and right space of the cab of the cabin device 7, and the sash 21 and the square frame 22 thereof. Improves the strength of the perforated plate 17.

A mounting portion 70 for attaching a nut member to the peripheral edge portion 17C of the perforated plate 17 and attaching a front / rear blinker attachment is formed on the front and rear upper portions of the side window 14, and the cabin device 7 is moved up and down in the vicinity of the rear portion. A stop portion 73 such as a planting pin for attaching a connecting tool 72 for connecting the upper end of the damper 71 is formed, and a handrail material 74 is attached to the front portion of the cabin frame 10.
In the present invention, the shape of each member and the positional relationship between the front, rear, left, and right in the above embodiment are best configured as shown in FIGS. However, it is not limited to the said embodiment, A member, a structure can be variously changed, and a combination can also be changed.

  For example, the loader work machine 1 may be a skid loader in which the traveling device 3 is constituted by tire wheels, the cabin frame 10 may be connected between the front and rear lower ends of the portal shape with a pipe material, and the cabin frame 10 is quarter-sectioned. You may weld and form the pipe material of a small square cross section which forms the recessed part 10A and frame inner surface 10D on the inner peripheral side of a circular pipe material.

1 is an overall side view showing an embodiment of the present invention. It is the XX sectional view taken on the line of FIG. It is a cross-sectional perspective view of the principal part. It is a whole perspective view. It is a side view. It is a top view. It is a front view.

Explanation of symbols

1 Loader working machine (truck loader)
2 loader working device 3 traveling device 4 machine frame 5 arm 6 working tool 7 cabin device 10 cabin frame 10A recess 11 roof 12 front window 13 back window 14 side window 17 porous plate 17A porous surface portion 17B peripheral wall portion 17C peripheral edge portion 17a through hole 18 Transparent material 19 Sliding door 20 Fitting board 21 Sash Ad Depth Bt Width

Claims (3)

A pair of left and right arms (5) are supported in the rear part of the body frame (4) having the left and right traveling device (3) so as to be movable up and down, and a working tool (6) is provided at the tip of the left and right arms (5). (5) The cabin device (7) is mounted between and on the fuselage frame (4),
The cabin device (7) forms a roof (11), a front window (12) and a back window (13) between a pair of left and right cabin frames (10), and side windows (14) in the left and right cabin frames (10). Each of the left and right cabin frames (10) has a side-view portal shape, and has an outward-facing recess (10A) inside the frame, and the side windows (14) are numerous. A perforated plate (17) having a through hole (17a) disposed on the outdoor side and a transparent see-through material (18) disposed on the indoor side,
The porous plate (17) includes a porous surface portion (17A) having a through hole (17a), a peripheral wall portion (17B) bent to the indoor side at the outer peripheral portion of the porous surface portion (17A), and the peripheral wall portion ( 17B) having a peripheral edge portion (17C) which is bent outward from the indoor end of the frame and fixed to the concave portion (10A) of the cabin frame (10).   The depth (Ad) of the recess (10A) of each cabin frame (10) and the width (Bt) of the peripheral wall (17B) of the perforated plate (17) are substantially matched, or each cabin frame (10 2) and the outdoor surface of the porous surface portion (17A) are arranged substantially flush with each other. The fluoroscopic material (18) is disposed on the inner peripheral side of the peripheral wall portion (17B) of the perforated plate (17) and within the width (Bt) of the peripheral wall portion (17B),
The see-through material (18) has a sliding door (19) facing the upper half of the porous surface portion (17A), and a fitting killing plate (20) facing the lower half,
3. The cabin device for a loader working machine according to claim 1, wherein upper and lower sashes (21) of the sliding door (19) are provided in an upper part and a middle part of the upper and lower parts of the porous surface part (17 </ b> A).

Images