JP2009073345A - Cabin window structure of working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cabin window structure of a working machine enabling obtaining of a window transparent portion having a stable attitude to mount an opening and closing steering wheel, etc., while securing sufficient opening area, by imparting simple remodeling to the constitution of a window frame. <P>SOLUTION: In this structure, fixed window glass 12 and movable window glass 11 are mounted in a parallel state to the window frame 10. The window frame 10 is constituted of a planar mounting portion 10B mounted on a door frame 8 mounted and fixed with the window frame 10 and a rail portion 10A for movably supporting the movable window glass 11. The fixed window glass 12 is mounted and fixed on a wall 10C for forming an internal space supporting the movable window glass 11 in the rail portion 10A. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  In the present invention, the fixed window transparent portion and the movable window transparent portion are mounted in a state parallel to the window frame frame, and the opening surface surrounded by the window frame frame is defined by the movable window transparent portion and the fixed window transparent portion. The present invention relates to a cabin window structure for a working machine configured to be switchable between a closed state and a state in which the movable window transparent portion is moved to the existence side of the fixed window transparent portion to open the opening surface.

In order to attach and fix the window frame frame to the mounting frame, for example, as shown in FIG. 13, a window frame frame 10 made of sheet metal is disposed on the opening surface side surrounded by the rectangular tube-shaped door frame 8 as the mounting frame. A fixed window glass as a fixed window transparent portion in which a recessed rail portion 10A is formed on the inner surface facing the opening surface side of the frame frame 10 and a trim 15 is attached in a pair of guide grooves a of the rail portion 10A. 12 and the movable window glass 12 as the movable window transparent portion were supported.
On the other hand, in order to attach and fix the window frame frame 10 to the door frame 8, the side surface 10D located on the opposite side of the rail portion 10A in the window frame frame 10 is arranged in close contact with the door frame 8, and the door frame 8 and the window A rubber caulking agent B, which also serves as an adhesive, is applied over the surface facing the inside of the door and the surface facing the outside of the door, which is different from the side surface 10D of the frame frame 10, and the window frame frame 10 is It was fixed to the door frame 8 by adhesion.

In the above configuration, since the fixed window transparent portion is supported by the door frame via the rubber caulking agent, there is room for improvement in terms of stably supporting the fixed window transparent portion. In addition, since the entire window frame frame is located on the opening surface side surrounded by the door frame, the opening area of the window glass as the window transparent portion is narrowed, and there is a possibility that the field of view is blocked by the window frame frame.
Since the window frame frame is fixed to the door frame with a rubber adhesive, it is easy to move, and there is a possibility that the opening / closing door handle attached to the fixed window glass may not be stable.

  An object of the present invention is to provide a working machine capable of obtaining a window transparent portion having a stable posture when attaching an opening / closing handle or the like while sufficiently securing an opening area by making a simple modification to the configuration of the window frame frame. Is to provide a cabin window structure.

〔Constitution〕
According to a first aspect of the present invention, the window frame frame includes an attachment portion attached to an attachment frame and a rail portion that movably supports the movable window transparent portion, and the movable portion of the rail portion is movable. The fixed window transparent portion is attached and fixed to a wall that forms an internal space that supports the window transparent portion, and the operation and effects thereof are as follows.

[Action]
Rather than inserting the fixed window transparent part into the guide groove of the rail part via a trim, the fixed window transparent part is directly attached to the rail part extended from the mounting part fixed to the mounting frame to the opening surface side. Since it is fixed, the fixed window transparent portion can be stably supported directly on the mounting frame via the window frame.

〔effect〕
The fixed window transparent portion can be stably supported directly on the mounting frame via the window frame frame, and a stable support structure of the fixed window transparent portion can be obtained over a long period of use.

〔Constitution〕
The characteristic configuration of the invention according to claim 2 is that the rail portion is disposed in a state of projecting toward an opening surface surrounded by the window frame frame, and the mounting portion is disposed in a state of overlapping the side surface of the mounting frame. The effects are as follows.

[Function and effect]
As the structure of the window frame frame, not only the rail part that supports the movable window transparent part but also the attachment part to the attachment frame is formed, so that the attachment part can be arranged at a position overlapping the side surface of the attachment frame. .
Accordingly, it is not necessary to arrange all the window frame frames at positions where they do not overlap with the mounting frame, and the field of view is hardly blocked by the mounting portion.
Moreover, even if the rail portion is arranged at a position that does not overlap with the mounting frame, the rail portion itself does not need to be provided with the function of the mounting portion with respect to the mounting frame, so the rail portion itself can be reduced in size. You can reduce the number of things that block.

〔Constitution〕
According to a third aspect of the invention, the mounting frame is a door frame for getting on and off a cabin, and an open / close door handle for opening and closing the door is attached and fixed to the fixed window transparent portion, and the movable window transparent portion is fixed to the fixed window transparent portion. In order to avoid interference between the movable window transparent part and the opening / closing handle in a state in which the opening surface is switched to a state in which it is moved to overlap with the fixed window transparent part, the part of the movable window transparent part is provided. The notch portion is formed, and the function and effect are as follows.

[Function and effect]
Open / close door handle is attached to the fixed window transparent part, but because the cutout part is provided in the movable window transparent part, the movable window transparent part is largely moved to avoid interference with the open / close door handle. The overlap allowance for the part was able to be taken greatly.
Thereby, the movable window transparent portion can be moved greatly to increase the opening area, and air can be efficiently introduced into the cabin.

  The configuration of the combine will be described. As shown in FIG. 1, the combine is transported vertically to the front end of the traveling machine body 2 having the left and right crawler devices 1 to convey the weed culm 32, the pulling device 33, the reaping device 34, and the reaped cereal culm backward. The pre-cutting processing device 3 provided with the device 31 is mounted so as to be movable up and down around the horizontal axis X, the threshing device 5 on the rear traveling machine body of the pre-cutting processing device 3, and the grain storage tank 6 on the side of the threshing device 5. , A grain unloading device 7 for unloading the grains from the grain storage tank 6 to the outside of the machine, and a driving control unit 4 disposed on the lateral side of the pre-cutting processing device 3 on the front side of the grain storage tank 6. A cabin 40 is provided in the portion 4 and configured.

  The configuration of the cabin 40 will be described. As shown in FIG. 1, the cabin 40 includes an air conditioner 46 in the ceiling 42 and is configured to be air conditioned. A front window 41 that protrudes forward toward the front of the cabin 40 is provided on the right side. A boarding door A is provided and configured.

  The entrance door A will be described. As shown in FIG. 2, the entrance door A is provided with a door frame 8 as an attachment frame, and is connected to a cabin via a pair of upper and lower hinges 9 attached to a rear door frame portion 8B on the rear end side of the door frame 8. It is attached to the side wall of 40 so as to be swingable and openable. On the inner surface side of the door frame 8 facing the interior space of the cabin 40, a rod-like handle 16 is provided so as to extend over both the front and rear door frame portions 8A and 8B.

  As shown in FIGS. 2 and 3, the window frame 10 is arranged along the four sides of the door frame 8, and the four sides of the window frame 10 are fixedly attached to the four sides of the door frame 8, respectively. . That is, the window frame frame 10 includes a plate-like attachment portion 10B that is bonded and fixed to a surface of the door frame 8 that faces the cabin, and a rail portion 10A that extends inwardly from the attachment portion 10B.

As shown in FIGS. 2 to 5, the rail portion 10 </ b> A forms a recessed portion surrounded by wall surfaces arranged in a channel shape, and the movable window glass 11 having the recessed portion as a movable window transparent portion can be slidably moved. It functions as a supporting guide groove a.
An inner wall 10C facing the inner space of the cabin 40 in a wall formed in parallel to the state surrounding the guide groove a is provided, and a fixed window transparent portion is provided on the inward side surface of the inner wall 10C facing the inner space of the cabin 40. A fixed window glass 12 is fixed through an adhesive 17.

  As shown in FIG. 2, the door frame 8 has a posture in which the lower half 8b of the rear door frame portion 8B is linearly inclined toward the front side toward the lower end side, and the lower half of the front door frame portion 8A. The part 8a is in a posture that exhibits an arc shape toward the front side toward the lower end side. In order to avoid interference with an engine (not shown) arranged below the driver's control seat, the door frame 8 is displaced forward and the opening area can be increased.

As shown in FIG. 2, the window frame 10 has a shape similar to that of the door frame 8, and extends along the linearly inclined portion of the rear door frame portion 8B and the arc-shaped portion of the front door frame portion 8A. It is configured in shape.
In the door frame 8, the front door frame portion 8 </ b> A and the rear door frame portion 8 </ b> B extend upward in parallel above the upper ends of the linearly inclined portion and the arc-shaped portion.
Similarly, the window frame 10 extends upward in parallel.

As shown in FIGS. 2 to 5, the vertical height from the lower end of the rear window frame frame portion 10 </ b> E and the front window frame frame portion 10 </ b> F to the middle height of the portion formed in parallel to the window frame frame 10. The fixed window glass 12 is attached and fixed.
As shown in FIGS. 2 and 3, the upper end 12A of the fixed window glass 12 is positioned along the lower end of the movable window glass 11 so that the intermediate portion 12a in the front-rear direction is positioned downward, and the front end 12b of the upper end 12A. The front end 12b and the intermediate portion 12a are connected by the front inclined side 12d so that the rear end 12c is positioned above the intermediate portion 12a, and the rear end 12c and the intermediate portion 12a are connected by the rear inclined side 12e. It is formed in a shape that is recessed downward.

  As shown in FIGS. 2 to 4, an opening / closing door handle 13 is mounted below the front inclined side 12 d of the fixed window glass 12, and the opening / closing door handle 13 is engaged with the opening / closing door A in the closed state. It is configured to engage with a catcher (not shown) that locks the entrance door A.

The configuration of the movable window glass 11 will be described. As shown in FIGS. 2 to 4, the lower end 11 </ b> A of the movable window glass 11 has a middle portion 11 a in the front-rear direction positioned downward so that the lower end 11 </ b> A has a shape along the upper end 12 </ b> A of the fixed window glass 12. The front end 11b and the intermediate portion 11a are connected by the front inclined side 11d, and the rear end 11c and the intermediate portion 11a are connected by the rear inclined side 11e so that 11b and the rear end 11c are positioned above the intermediate portion 11a. Thus, it is formed in a shape protruding downward.
In this way, by forming the cutout portion like the front inclined side 11d with the intermediate portion 11a projecting downward at the lower end 11A, interference with the opening / closing door handle 13 is avoided as will be described later. The

  As shown in FIGS. 2 to 4, the upper end 11 </ b> B of the movable window glass 11 is configured as a linear end portion that maintains a constant height, and a lock handle 14 </ b> A is attached to the upper end 11 </ b> B. A lock catcher 14B that engages with the lock handle 14A is attached to the upper end.

  As shown in FIG. 3, when the movable window glass 11 is pulled up to the upper end and the opening surface is closed, the lock handle 14A is released, and the movable window glass 11 is moved downward as shown in FIG. it can. In a state where the movable window glass 11 is moved downward, the front inclined side 11d at the lower end 11A of the movable window glass 11 is configured to be stopped at a position avoiding interference with the opening / closing door handle 13. Thereby, the movable window glass 11 can be largely opened.

  As shown in FIG. 7, the upper end 11 </ b> B of the movable window glass 11 is positioned at the same height as the front and rear ends 12 b and 12 c of the upper end 12 </ b> A of the fixed window glass 12 with the movable window glass 11 pulled down and positioned at the lowermost end. It is located so that the opening area can be maximized.

  As shown in FIGS. 2 to 4, a trim 15 is attached to the lower end 11 </ b> A of the movable window glass 11 over the front inclined side 11 d, the intermediate portion 11 a, and the rear inclined side 11 e, and the fixed window glass 12. The trim 15 is also in contact with the movement of the movable window glass 11 while maintaining the distance between them and the entry of dust and the like is prevented.

  Next, the opening / closing window 20 formed on the side surface of the cabin 40 located on the opposite side of the driver's seat 44 from the side where the passenger door A is located will be described. As shown in FIGS. 8 to 11, in order to form the opening / closing window 20, a substantially rectangular opening is formed in the left side wall of the cabin 40, and the window frame 21 is formed in this opening.

  The window frame 21 is provided with a rail portion that slidably supports the window glasses 22 and 23 as a pair of front and rear window transparent portions, and a pair of left and right guide grooves 21A that are opened inwardly in the rail portion. The window glasses 22 and 23 are supported by the left and right guide grooves 21A so as to be movable back and forth.

  The front window glass 22 will be described. As shown in FIGS. 8 to 10, the front window glass 22 has a substantially rectangular shape, a front end surface 22 a is formed on a linear end surface, and a rear end surface 22 b is a polygonal line having a portion 22 c that is refracted at an upper and lower intermediate position. It is formed on the end face. That is, the rear end face 22b is formed in a state in which the upper half 22d protrudes from the lower half 22e toward the rear end with the refracting portion 22c as a boundary.

A closure locking tool 24 is attached to a portion located near the front end surface 22a and above the refracting portion 22c, and the lock engaging portion 21a is formed on one wall surface forming the guide groove 21A at the front end portion of the window frame 21. Is formed. Accordingly, when the front window glass 22 is moved to the closing position, the closing lock tool 24 is engaged with the lock engaging portion 21a and the closed state is fixed.
A holding sealing material 47 fitted into the guide groove 21A is attached to the front end surface 22a of the front window glass 22 to improve the sealing performance and stabilize the closed and fixed state.

The rear window glass 23 also has a substantially rectangular shape, the rear end surface 23b is formed as a straight end surface at the upper half 23f, the lower half 23g is formed as an inclined surface, and the front end surface 23a is formed at the upper and lower intermediate positions. It is formed on a polygonal end face having a refracting portion 23c. That is, the front end surface 23a is formed in a state in which the lower half 23e protrudes to the front end side from the upper half 23d with the refracting portion 23c as a boundary.
A trim 15 is attached to the front end face 23 a in the same manner as the front window glass 22. A flock 15A is attached to the trim 15 of the front end face 23a, and this flock 15A contacts the inner surface of the front window glass 22 and exhibits a sealing function.

  As shown in FIG. 9, the closure locking device 25 is attached to a portion located in the vicinity of the rear end surface 23 b and above the refracting portion 23 c, and forms one guide groove 21 </ b> A at the front end portion of the window frame 21. A lock engaging portion 21b is formed on the wall surface. As a result, when the front window glass 23 is moved to the closed position, the closed lock 25 is engaged with the lock engaging portion 21b and the closed state is fixed.

Next, the closing lock tool 24 provided on the front window glass 22 and the closing lock tool 25 provided on the rear window glass 23 are located on the front side as shown in FIG. Both the obstruction locking devices 24 and 25 are attached in a state of being displaced in the height direction so that the obstruction locking device 24 is positioned higher than the obstruction locking device 25 located on the rear side.
In combination with the point of shifting the both closure locking devices 24, 25 in the height direction, as described above, the front and rear window glasses 22, 23 are refracted to the intermediate position in the height direction 22c, 23c. Is formed.

By configuring as described above, even if the rear window glass 23 is fully opened to be overlapped with the front window glass 22, the intermediate position of the rear window glass 23 is obtained as shown in FIG. The refracted portion 23 c enters below the closing lock member 24 of the front window glass 22, and the front end surface 23 b of the rear window glass 23 does not interfere with the closing lock member 24.
Therefore, even if the closing lock tool 24 is in a state of protruding from the window glass surface, it is possible to avoid the interference and open the rear window glass 23 greatly.

  In the above description, the open state of the rear window glass 23 has been described, but the same applies to the case where the front window glass 22 is opened rearward. As shown in FIG. Since it enters above the closing lock 25 of the rear window glass 23, it is avoided that the rear end surface 22b of the front window glass 22 interferes. In this case, the rear end surface 22b of the front window glass 22 does not reach the rail portion because the lower half 23f of the rear end surface 23b of the rear window glass 23 is inclined forward.

In the above case, the closing lock device 25 provided on the rear window glass 23 is provided below the closing lock device 24 provided on the front window glass 22. This reason is determined from an ergonomic point of view that when the driver extends his hand backwards and grasps and operates the obstruction lock device 25, the hand inevitably tends to face downward. .
As described above, since the front and rear window glasses 22 and 23 can be largely opened, it is possible to easily perform the operation of removing straws and the like remaining in the vicinity of the handling chamber entrance of the threshing device 5 from the driver's seat.

As a configuration in which the front and rear window glasses 22 and 23 can be largely opened by replacing the above-described closing lock device 24 and the like, the following configuration may be used. As shown in FIG. 12, the obstruction locking devices 24 and 25 are provided in a state where they are vertically displaced, and is the same as the above-described configuration.
The difference from the above-described configuration is that the configuration formed on the rear end surface 22b of the front window glass 22 and the front end surface 22a of the rear window glass 23 is not the refracted portions 22c and 23c but merely the recessed portions 22h and 23h. is there.

  With such a configuration, the recessed portion 22h of the rear end surface 22b of the front window glass 22 does not interfere with the closing lock device 25 of the rear window glass 23, and the front window glass 22 and the rear window glass 23 are opened widely. Can do.

[Other Examples]
(1) Although glass is employed in the above configuration, it may be configured with a transparent resin plate, and this glass and the resin plate are collectively referred to as a window transparent portion.
(2) Although the door frame 8 is adopted as an object to which the window frame frame 10 is attached, a side wall or a rear wall on which the window of the cabin 4 should be formed may be used. Here, the side walls of the door frame 8 and the cabin 4 are referred to as attachment frames.

(3) Another mounting structure for the fixed window glass 12 will be described. The mounting structure of the movable window glass 11 has the same configuration as that shown in FIG. As the cross-sectional shape of the door frame 8, a rectangular tube shape is adopted in the case of FIG. 5, but here, the rectangular tube shape is further modified to form an L-shaped cross-section door frame 8. It is configured.
That is, as shown in FIG. 6, the fixed window glass 12 is attached and fixed via the adhesive 17 to the inward surface 8 </ b> C toward the cabin in the door frame 8 having the L-shaped cross section. The front and rear ends 12 </ b> B of the fixed window glass 12 are provided in a state of abutting against a lateral surface 8 </ b> D that is orthogonal to the inward surface 8 </ b> C of the door frame 8. With such a configuration, the fixed mounting state of the fixed window glass 12 is stabilized.

Combine side view An exploded perspective view of a door for getting on and off Side view of the entrance door Front view of the entrance door Cross-sectional plan view showing the mounting state of the movable window glass and fixed window glass in the door for getting on and off 5 is a cross-sectional plan view showing another embodiment of FIG. Side view showing a state where the movable window glass is pulled down to the lower end position Exploded perspective view showing cabin window Cross-sectional plan view showing cabin window Side view showing the cabin window closed (A) A side view showing a state in which the rear window glass is opened so as to overlap the front window glass, (b) a side view showing a state in which the rear window glass is opened so as to overlap the rear window glass. Side view showing another embodiment of the window glass shown in FIGS. Cross-sectional plan view showing the mounting state of the movable window glass and fixed window glass in a conventional door for getting on and off

Explanation of symbols

8 Door frame (mounting frame)
DESCRIPTION OF SYMBOLS 10 Window frame frame 10A Mounting part 10B Transmission case 10C Wall 11 Movable window transparent part 11d Front and back inclined side (notch part)
12 Fixed window transparency 13 Open / close door handle

Claims (3)

A state in which the fixed window transparent part and the movable window transparent part are mounted in a state parallel to the window frame, and the opening surface surrounded by the window frame frame is closed with the movable window transparent part and the fixed window transparent part. The movable window transparent portion is moved to the presence side of the fixed window transparent portion to be able to switch to a state in which the opening surface is opened.
The window frame frame includes an attachment portion attached to the attachment frame and a rail portion that movably supports the movable window transparent portion, and forms an internal space that supports the movable window transparent portion in the rail portion. A cabin window structure of a work machine in which the fixed window transparent portion is attached and fixed to a wall.   The cabin window structure for a working machine according to claim 1, wherein the rail portion is disposed so as to protrude toward an opening surface surrounded by the window frame frame, and the attachment portion is disposed so as to overlap a side surface of the attachment frame.   The mounting frame is a door frame for getting on and off a cabin, and an open / close door handle for opening and closing the door is attached and fixed to the fixed window transparent portion, and the movable window transparent portion is moved to a state where it overlaps the fixed window transparent portion. 2. A notch portion is formed in a part of the movable window transparent portion so as to avoid interference between the movable window transparent portion and the opening / closing door handle in a state where the opening surface is switched to an open state. The cabin window structure of the working machine according to 1 or 2.

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