JP2009113664A - Cabin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cabin where a hinge part for supporting a door panel is concealed by the door panel when viewing a cabin from the front surface side, and the appearance in the front surface view of the cabin is simple. <P>SOLUTION: The cabin is equipped with a pair of right and left front column supports 8 disposed at the front side of a driver's seat 7 and a pair of right and left rear column supports 9 disposed at the rear side of the driver's seat 7. These right and left front column support 8 and rear column support 9 are provided such that a distance L1 between the outer surfaces in the right and left direction of the right and left rear column supports 9 becomes narrower than the distance L2 between the outer surfaces in the right and left direction of the right and left front column supports 8. The door panel 15 provided so as to close the distance between the front column supports 8 and the rear column supports 9 positioned at the same side in the right and left direction is provided at the outer surface side of a cabin frame 6. The hinge part 37 for openably/closably supporting this door panel 15 is provided on the rear column supports 9. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cabin mounted on a traveling vehicle such as a tractor.

Conventionally, as a cabin mounted on a tractor, it has a pair of left and right front struts arranged on the front side of the driver's seat and a pair of left and right rear struts arranged on the rear side of the driver's seat, and on the same side in the left-right direction There is a door panel provided on the outer surface side of the cabin frame so as to close the space between the front support column and the rear support column, and a hinge part for opening and closing the door panel is provided on the rear support column (Patent Document 1). reference).
Japanese Patent Laid-Open No. 11-91641

In the conventional cabin, the rear strut is located at substantially the same position in the left-right direction with respect to the front strut located in front of the cabin, so that the hinge portion provided on the rear strut can be seen from the front of the tractor, The appearance from the front of the cabin is complicated.
In addition, there is a great possibility that the hinge part contacts something.
Then, an object of this invention is to provide the cabin which solved the said problem.

The technical means taken by the present invention to solve the technical problem includes a pair of left and right front columns disposed on the front side of the driver's seat, and a pair of left and right rear columns disposed on the rear side of the driver's seat. The left and right front struts and rear struts are provided such that the distance between the left and right rear struts is smaller than the distance between the left and right front struts.
A door panel provided so as to close the space between the front and rear struts located on the same side in the left-right direction is provided on the outer surface side of the cabin frame, and a hinge portion is provided on the rear strut to support the door panel so that it can be opened and closed. It is characterized by.

In addition, it has left and right side beam members that connect the upper ends of the front and rear columns, which are located on the same side in the left and right direction, and the side beam members are swelled outward in the left and right direction. It is preferable that the door panel is formed in a curved shape along the side beam member, and is formed in a curved shape outward in the left-right direction.
Further, it is preferable to provide a light stay in which the left and right rear struts are formed in a curved shape that moves inward in the left-right direction as they go upward in the rear view, and a light is attached to the upper end side of the rear strut.
In addition, a rear panel that closes the space between the rear columns is provided to be openable and closable, a biasing member that biases the rear panel in the opening direction is provided, and a locking member that stops the rear panel at a midway position between the closed position and the open position. The locking member is preferably detachable with respect to the rear panel and is configured to follow the movement of the rear panel between the closed position and the midway position.

According to the present invention, the hinge portion that supports the door panel is located on the inner side in the lateral direction from the door panel. Therefore, when the cabin is viewed from the front side, the hinge portion is hidden by the door panel and the appearance of the cabin in front view is simplified. .
Moreover, there is little possibility that a hinge part contacts something.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a tractor (traveling vehicle) on which a cabin 2 is mounted. The tractor 1 forms a vehicle body 3 by directly connecting an engine, a clutch housing, and a transmission case. A two-shaft, four-wheel tractor 1 is used which is supported by the front wheels 4 and the rear portion of the vehicle body 3 is supported by the left and right rear wheels 5, and the cabin 2 is mounted on the rear portion of the vehicle body 3.
The cabin 2 includes a cabin frame 6 constituting a skeleton.

  2 to 23, the cabin frame 6 includes a pair of left and right front columns 8 positioned on the front side of the driver's seat 7 and a pair of left and right rear columns 9 positioned on the rear side of the driver's seat 7. Further, the cabin frame 6 is a four-pillar type cabin frame 6 without an intermediate column (center pillar), and the driver's seat 7 is disposed on the center side in the left-right direction on the rear side (in the cabin 2) of the cabin frame 6 (therefore, the front left The support column 8 is positioned diagonally to the left of the driver's seat 7, the right front support column 8 is positioned diagonally to the right of the driver's seat 7, the left rear support column 9 is positioned diagonally to the left of the driver's seat 7, and the left rear support column 9 is It is located diagonally to the right of the driver's seat 7).

A steering handle device 10 is provided on the front side in the cabin 2.
An upper outer roof 11 and an inner roof 12 (see FIG. 23) that constitutes a ceiling portion in the cabin 2 are provided on the upper part of the cabin frame 6. A space between the columns 9 is closed by a rear panel 14, and a space between the front column 8 and the rear column 9 on the same side in the left-right direction is blocked by a door panel 15.
The front panel 13, the rear panel 14, and the left and right door panels 15 are composed of transparent panels formed of glass (or resin) and are disposed on the outer surface side of the cabin frame 6.

The upper ends of the left and right front struts 8 are connected by a front beam member 16, and the upper end sides of the left and right rear struts 9 are connected by a rear beam member 17, and the front strut 8 and the rear strut 9 on the same side in the left-right direction are connected. The upper end sides are connected by a side beam member 18.
The left and right ends of the front beam member 16 are connected to the inner side in the left and right direction of the upper end of the front column 8, and the left and right ends of the rear beam member 17 are connected to the inner side in the left and right direction of the upper end of the rear column 9. The part is connected to the back side of the upper end of the front column 8, and the rear end is connected to the front side of the upper end of the rear column 9.
The lower ends of the left and right rear struts 9 are at a height position corresponding to the substantially central portion of the front strut 8 in the vertical direction, and the lower end sides of the left and right rear struts 9 are connected by a rear lower connecting member 19.

Further, on both the left and right sides of the driver's seat 7, it extends so as to move downward from the lower end of each of the left and right rear struts 9 and expands toward the front upper side (the rear wheel fender 20 A curved side frame member 21 is provided along the shape of the front surface from the upper surface.
A rear wheel fender 20 is disposed below the left and right side frame members 21 and is fixed to the side frame member 21, and a floor sheet 22 is disposed between the left and right rear wheel fenders 20. Is arranged on the lower side of the driver's seat 7 and the driver's seat 7 is mounted on the floor seat 22, and the rear side of the floor seat 22 extends rearward and upward, and the rear side of the driver's seat 7. Is located.

The front lower end portion of the side frame member 21 is located at the same height as the lower end of the front support column 8 positioned in front of the side frame member 21, and the front lower end portion of each side frame member 21 and the front support column positioned in front thereof. The lower end of 8 is connected by a lower side connecting member 23.
A gate-shaped front lower frame 24 that supports the dashboard, the steering handle device 10 and the like is provided at the lower part between the left and right front columns 8. The lower ends of the front struts 8 located on the same side are connected by a front lower connecting member 25.

The upper ends of the legs 26 are connected to the lower ends of the left and right rear struts 9. Each leg 26 is inclined so that the upper part moves inward in the left-right direction as it goes downward, and the lower part extends downward. A mounting plate 27 that is straight and is attached to the vehicle body 3 of the tractor 1 via a mount rubber on the lower end side.
Further, the lower portion of the leg body 26 on the same side in the left-right direction and the inner end side in the left-right direction of the front lower connecting member 25 are connected by a first reinforcing member 28 made of a square pipe, and this first reinforcing member. 28 is formed such that the rear side extends forward, is bent so as to extend downward in the middle, and is formed so that the front side extends forward.

Moreover, the front-rear direction midway portions of the front portions of the left and right first reinforcing frame members are connected to each other by a second reinforcing material 29 made of a square pipe, and the front-rear direction midway portions of the front portions of the left and right first reinforcing members 28, The side lower connecting member 23 is connected to the rear end side by a third reinforcing frame member 30 made of a square pipe.
Further, a step 31 located on the upper surface side of each reinforcing member 28, 29, 30 is provided at the bottom front part of the cabin frame 6. 3 is provided with an attachment plate 32 attached via a mount rubber.
The left and right front struts 8 are made of deformed pipes having a bowl-shaped cross section arranged in the vertical direction. When viewed from the front, the left and right front struts 8 extend outward in the left-right direction as going from the upper and lower ends to the central side in the vertical direction (longitudinal center). It is formed so as to be curved, and is formed in a curved shape so that the substantially central side in the vertical direction swells outward in the left-right direction.

Further, when viewed from the side, the left and right front struts 8 are curved so as to move from the upper and lower ends to the front side in the left-right direction as it goes from the upper and lower ends to the left-right direction. It is formed in a curved shape so as to bulge outward, and is provided such that the inclination with respect to the vertical direction is smaller on the lower side than on the upper side.
Therefore, the left and right front struts 8 are formed in a curved shape so as to swell from the driver's seat 7 toward the cabin 2 outdoor direction (obliquely forward side).
Also, as shown in FIG. 12, the front beam member 16 is composed of square pipes arranged in the left-right direction, and is curved so as to move forward from the left and right ends toward the left-right direction center side (longitudinal direction center side). It is formed in a curved shape so that the center side in the left-right direction swells forward, and is arranged so that the front surface is inclined so as to face obliquely upward, and the center side in the left-right direction is provided with a high middle-high shape ing.

The outer shape of the front panel 13 is formed in a shape along the edge of the opening surrounded by the left and right front struts 8, the front beam members 16, the front lower frame 24, and the left and right front lower connecting members 25. In the present embodiment, the upper portion 13A located above the front lower frame 24 and between the upper portions of the left and right front columns 8, and between the side portion 24a of the front lower frame 24 and the lower portion of the front column 8 It is comprised from the left-right paired lower part 13B located.
In the present embodiment, the upper portion 13A and the lower portion 13B of the front panel 13 are formed separately, but the upper portion 13A and the lower portion 13B of the front panel 13 may be integrally formed.

The upper part 13A of the front panel 13 is formed in a curved shape along the upper part of the front column 8 and the front beam member 16, and is formed in a spherical shape that protrudes forward, and the upper edge side is the front beam member 16. The left and right side edge sides are bonded to the front side of the upper portion of the front strut 8 via the sealing material.
As described above, the front beam member 16 is disposed so that the front surface is inclined obliquely upward, and the front beam member 16 is inclined so that the front surface (outer surface) of the front beam member 16 moves toward the cabin 2 as it goes upward. Therefore, even if the front panel 13 is formed in a curved shape that follows the curved shape of the front support column 8, the upper edge side of the front panel 13 with respect to the front beam material 16 is satisfactorily interposed via a sealing material and an adhesive. You can get in contact.

Further, the central side in the left-right direction on the lower edge side of the upper portion of the front panel 13 is bonded to a mounting portion 33 projecting from the upper portion of the front lower frame 24 via a sealing material.
Further, the central side in the left-right direction on the lower edge side of the upper portion 13 </ b> A of the front panel 13 is formed flat (planar), and a wiper is attached to a portion corresponding to the flat portion 34.
The lower portion 13B of the front panel 13 is formed in a curved shape along the lower portion of the front support column 8, and the edge on the left and right direction outer end side is bonded to the front side of the lower portion of the front support column 8 via a sealing material. The edge on the inner side in the direction is bonded to a mounting portion 35 protruding from the side of the front lower frame 24 via a sealing material, and the edge on the lower end side is bonded to the front side of the front lower connecting member 25 via a sealing material. The upper edge side of the lower part of the front panel 13 is bonded to the lower edge side of the front panel 13 via a sealing material.

The lower part 13B of the front panel 13 is formed so as to be gently curved as compared with the upper part 13A (the lower part of the front panel 13 is looser (smaller) than the upper part).
Thus, when the front side (the front wheel 4 and its surroundings) of the lower portion 13B of the front panel 13 is viewed from the driver's seat 7 through the lower portion 13B of the front panel 13, there is little distortion and it is easy to see.
The left and right rear struts 9 are made of deformed pipes having a bowl-shaped cross section arranged in the vertical direction, and when viewed from the side, are formed in a curved shape so that the center side in the longitudinal direction swells rearward and has a forward inclined shape. The upper end is positioned on the front side of the lower end (the inclination with respect to the vertical direction is provided such that the lower part is smaller than the upper part).

The left and right rear struts 9 are formed in a curved shape so that the center in the longitudinal direction swells outward in the left-right direction when viewed from the rear, and are provided so as to be inclined inward in the left-right direction, with the upper end at the lower end. (Inclination degree with respect to the vertical direction is provided such that the lower part is smaller than the upper part).
Therefore, the left and right front struts 8 are formed in a curved shape so as to swell from the driver's seat 7 toward the outside of the cabin 2.
In addition, light stays 36 to which lights (work lights) are attached are provided on the upper ends of the left and right rear struts 9. As described above, the left and right rear struts 9 are inclined inward in the left-right direction. Since the upper end is located on the inner side in the left-right direction with respect to the lower end, it is possible to prevent the light attached to the light stay from protruding outward in the left-right direction from the rear wheel fender 20. It is configured.

In addition, as shown in FIG. 9, in the left and right rear struts 9, the distance L <b> 1 between the left and right rear struts 9 is narrower than the distance L <b> 2 between the left and right front struts 8. It is provided as follows.
Further, as shown in FIG. 13, the left and right side beam members 18 are formed of square pipes arranged in the front-rear direction, and are curved so that the front-rear direction center side (longitudinal direction center side) swells outward in the left-right direction. Is formed.
The left and right side beam members 18 are provided so as to be inclined inward in the left-right direction so that the rear end is positioned inward in the left-right direction with respect to the front end, and the outer surface (side surface) in the left-right direction is slanted. The side beam members 18 are disposed so as to be directed upward, and the side beam members 18 are provided so that the midway portions in the left-right direction are high.

The door panel 15 is formed in a shape along the edge of the opening surrounded by the front strut 8, the rear strut 9, the side beam member 18, the side frame member 21, and the front lower connecting member 25 on the same side in the left-right direction. Has been.
The door panel 15 is formed in a curved shape along the front support column 8 and the side beam member 18 and is formed in a spherical shape that protrudes outward in the left-right direction, and the upper edge side is the side beam member 18. The front edge side is contacted to the outer surface of the front support column 8 via the seal material, and the rear edge side is contacted to the outer surface of the rear support column 9 via the seal material. The lower edge side is in contact with the side frame member 21 and the side lower connecting member 23 via a sealant.

As described above, the side beam member 18 is disposed so that the outer surface is inclined obliquely upward, and the side beam member 18 is inclined so that the outer surface (outer surface) of the side beam member 18 moves toward the cabin 2 as it goes upward. Even if the door panel 15 is formed in a curved shape that follows the curved shape of the front support column 8 and the rear support column 9, the upper edge side of the door panel 15 is good with respect to the side beam material 18 through the sealing material. It can be touched.
Further, the door panel 15 is supported at its rear edge side by a pair of upper and lower hinge portions 37 provided on the rear column 9 so as to be opened and closed, and is a front-open door panel 15.

A door handle 38 is provided in the middle in the vertical direction on the front edge side of the door panel 15, and provided in the middle in the vertical direction on the cabin 2 room side of the door panel 15 so as to reach the door handle 38 from the lower hinge portion 37. A handle 39 is provided.
The hinge portion includes a fixed portion 37A fixed to the rear column 9, and a movable portion 37B pivotally connected to the fixed portion 37A so as to be pivotable about an inclined axis that moves forward as it goes upward. The rear edge side of the door panel 15 is attached to the movable part 37B.
As described above, the left and right rear struts 9 are provided such that the distance L1 between the left and right outer surfaces of the left and right rear struts 9 is smaller than the distance L2 between the left and right outer surfaces of the left and right front struts 8. Therefore, when the cabin 2 is viewed from the front, the hinge portion 37 is hidden behind the door panel 15 and the appearance of the cabin 2 in a front view is simplified, and the hinge portion 37 contacts something. There is an effect that there is little fear of doing.

Further, the rear column 9 is close to the driver's seat 7 and can secure the strength in the vicinity of the driver's seat 7, and the left / right distance L2 between the left and right front columns 8 is wider than the left / right distance L1 of the rear column 9, so that the front view is good.
The side frame member 21 is formed by a square pipe. As shown in FIGS. 16 and 17, the side part 21a is formed in a substantially straight line so as to extend forward from the lower end of the rear support 9 in a side view. The part from the part to the front lower end is a curved shape that moves downward as it goes forward (curved shape so as to swell upward and obliquely upward).
In addition, the front lower end of the side frame member 21 is directed downward, and the curved portion 21b has an arc shape with a larger curvature radius on the front side than on the rear side.

Further, the side frame member 21 has a straight portion 21a on the rear side extending from the lower end of the rear column 9 toward the diagonally outer front side in a plan view, and on the curved portion 21b, inward in the left-right direction as going forward. It is made into the curved shape which shifts to (curved shape so that it may bulge outward).
In addition, the side frame member 21 has a curved shape (curved shape so as to bulge outward) as the curved portion 21b goes downward in the front view.
Further, the straight portion 21a of the side frame member 21 is provided such that the outer side surface thereof is a surface along the vertical direction, and the curved portion 21b of the side frame member 21 is slightly forward obliquely outward from the front side of the curved portion 21b. (The outer surface of the curved portion 21b is slightly inclined outward in the left-right direction as it goes outward in the radial direction in most parts except the front lower end portion).

As described above, the side frame member 21 is formed so that its outer surface conforms to the spherical shape of the door panel 15 (the inner surface shape of the portion corresponding to the side frame member 21 at the edge of the door panel 15). And the rear edge side of the lower edge of the door panel 15 is configured to be in good contact with the outer surface of the side frame member 21 via a sealing material.
As shown in FIG. 20, the side lower connecting member 23 is disposed on the upper wall 23a, the outer wall 23b extending downward from the left and right outer ends of the upper wall 23a, and the lower side of the upper wall 23a. A bottom wall 23c fixed to the outer wall 23b, and a reinforcing wall 23d provided so as to connect the upper wall 23a and the bottom wall 23c. It is inclined so as to move inward in the direction (to the cabin 2 indoor side), and is configured so that the lower edge front side of the door panel 15 is in good contact with the outer surface of the side lower connecting member 23 via a sealing material. ing.

As shown in FIG. 15, the rear lower connecting member 19 that connects the lower ends of the left and right rear struts 9 is formed by a square pipe and curved so that the left and right direction center side (longitudinal direction center side) swells rearward. It is formed in a shape.
The rear panel 14 has an outer shape that follows the edge of the opening surrounded by the left and right rear struts 9, the rear beam members 17, and the rear lower connecting members 19.
Further, the rear panel 14 is formed in a curved shape that follows the curved shapes of the left and right rear columns 9, the rear beam member 17, and the rear lower connecting member 19, and is formed in a spherical shape that protrudes rearward. The upper edge side of the rear panel 14 is in contact with the rear surface of the side beam member 18 via a sealing material, the left and right side edge sides are in contact with the rear surface side of the rear column 9, and the lower edge side is the rear surface of the rear lower connecting member 19. It has been in contact with.

As described above, the rear beam member 17 is disposed so that the rear surface is inclined obliquely upward, and the rear beam member 17 is inclined so that the rear surface (outer surface) of the rear beam member 17 moves toward the cabin 2 as it goes upward. Therefore, even if the rear panel 14 is formed in a curved shape that follows the curved shape of the rear column 9, the upper edge side of the rear panel 14 can be in good contact with the rear beam member 17 via the sealing material. Can do.
Further, the upper edge side of the rear panel 14 is supported by a pair of left and right hinges 40 provided on the rear beam member 17 so as to be rotatable about a horizontal axis, and swings the rear panel 14 up and down. Thus, the opening between the left and right rear struts 9 can be freely opened and closed.

As shown in FIGS. 21 and 22, an urging member 48 made of a gas damper (gas spring) that urges the rear panel 14 to the open position (fully opened position) is provided across the rear column 9 and the rear panel 14.
Further, on the center side in the left-right direction inside the cabin 2 in the cabin below the rear panel 14, the rear panel 14 is engaged with a stopper 41 provided on the center side in the left-right direction on the upper surface of the rear lower connecting member 19 so that the rear panel 14 is in the closed position. A locking device 42 for locking is provided.
A locking member 43 that locks the rear panel 14 at a midway position between the closed position and the open position is provided on the rear side of the cabin 2, and the lower portion of the rear panel 14 on the cabin 2 room side and the rear lower connecting member 19. It is provided over.

In this embodiment, the locking member 43 is formed by a gas damper (gas spring) that urges the rear panel 14 in the opening direction, and the base side of the gas damper 43 is fixed to one end of the upper surface of the rear lower connecting member 19. The mounting portion 44 is connected via a ball joint 45, and the front end side of the piston rod 43a of the gas damper 43 can be freely engaged with and disengaged from an engaging portion 46 provided at the center in the left-right direction on the lower inner surface side of the rear panel 14. An engaging tool 47 is provided to engage with.
In this embodiment, the engaging portion 46 is formed with an insertion hole, and the engaging tool 47 is inserted into the insertion portion 46 from above so that the engaging tool 47 can be inserted into and removed from the engaging portion 46. It is said that it can be freely engaged.

The locking member 43 is configured to stop the rear panel 14 at an intermediate position between the closed position and the open position (FIGS. 21 and 22) at the limit of extension.
The locking member 43 follows the movement of the rear panel 14 between the closed position and the midway position by connecting the base portion to the mounting portion 44 via a ball joint and withdrawing and retracting the piston rod 43a. To do.
In the above configuration, when the lock by the locking device 42 is released in the closed position of the rear panel 14, the rear panel 14 opens and automatically stops at the midway position by the locking member 43. It is held in an open half-open state, and ventilation in the cabin 2 is possible. Therefore, this embodiment is convenient because it does not require an operation for opening the rear panel 14 in a half-open state.

Further, in this half-opened state, when the engaging member 43 is swung upward and the engaging tool 47 of the engaging member 43 is removed from the insertion hole of the engaging portion 46, the rear panel 14 is opened by the urging member 48. Swing to position.
In this embodiment, the locking member 43 is formed by a gas damper, but is not limited to this, and is not urged like a gas damper, but simply expands and contracts the piston rod. It may be configured by a pair of links pivotally connected so that the midway portion is bent, and is detachable with respect to the rear panel 14 and between the closed position and the midway position. It is only necessary to be configured to follow the movement of the rear panel 14.

As shown in FIG. 23, the inner roof 12 has a concave portion 49 that is concave toward the upper side of the driver seat 7, and a vertical wall portion 49 a on the front side of the concave portion 49 has an inner roof 12. 12 is provided between the outer roof 11 and the outer roof 11, and an operation tool 50 for operating the air conditioner device is provided. A vertical wall portion 49a on the rear side of the concave portion 49 is provided with an air outlet 51 of the air conditioner. Is provided with an operation tool 52 for operating the wind direction.
In addition, the front edge side of the inner roof 12 is attached and fixed to the front beam member 16, the rear edge side is attached and fixed to the rear beam member 17, and the left and right side edge sides are attached and fixed to the side beam member 18. The roof 12 is formed in a curved shape so as to bulge upward as a whole along the medium-high shape of the front beam member 16, the rear beam member 17, and the side beam member 18.

Thus, by forming the inner roof 12 in a curved shape so as to bulge upward as a whole, the head clearance above the driver is secured, and the inner roof 12 is provided in the vertical wall portion 49a of the recess 49 of the inner roof 12. Since the operating tool 50 for operating the air conditioner and the operating tool 52 of the outlet 51 are directed toward the driver, the operating tool 50 can be easily operated.
On the contrary, the front beam members 16, the rear beam members 17, and the side beam members 18 have a medium-high shape, so that the front beam member of the inner roof 12 formed in a curved shape so as to bulge upward as a whole. 16, the attachment to the rear beam material 17 and the side beam material 18 becomes easy.

It is a side view of a tractor. It is a perspective view of a cabin frame and each panel. It is a front view of a cabin frame. It is a front enlarged view of the cabin frame right side. It is a side view of a cabin frame. It is a rear view of a cabin frame. It is a back surface enlarged view of the left side of a cabin frame. It is the top view which looked at the cabin frame from the up-down direction middle part. It is a top view of a cabin frame. It is the perspective view which looked at the cabin frame from diagonally left front. It is the perspective view seen from the cabin frame right diagonally back. (A) is a side view of the front beam material, (b) is a plan view of the front beam material, and (c) is a front view of the front beam material. (A) is a front view of a side beam member, (b) is a plan view of the side beam member, and (c) is a side view of the side beam member. (A) is a side view of the rear beam material, (b) is a plan view of the rear beam material, and (c) is a diagram of the rear beam material. (A) is a side view of the rear lower connecting member, (b) is a plan view of the rear lower connecting member, and (c) is a rear view of the rear lower connecting member. (A) is a side view of a side frame member, (b) is a plan view of the side frame member, and (c) is a front view of the side frame member. It is a perspective view of a side frame material. FIG. 6 is a cross-sectional view taken along line VV in FIG. 5. It is a WW arrow directional cross-sectional view of FIG. FIG. 6 is a cross-sectional view taken along line XX in FIG. 5. It is a front side perspective view of the periphery of the rear panel showing the half-opened state of the rear panel. FIG. 4 is a side view around the rear panel showing a half-open state of the rear panel. (A) is a bottom view of the inner roof, (b) is a cross-sectional view taken along line YY of (a), and (c) is a cross-sectional view taken along line ZZ.

Explanation of symbols

6 Cabin frame 7 Driver's seat 8 Front strut 9 Rear strut 14 Rear panel 15 Door panel 18 Side beam material 23 Side lower connecting material 36 Light stay 37 Hinge part 43 Locking member 48 Energizing member L1 Between left and right outer surfaces of the left and right rear struts Interval L2 Interval between left and right outer surfaces of left and right front struts

Claims (4)

Cabin frame (6) having a pair of left and right front struts (8) disposed on the front side of the driver seat (7) and a pair of left and right rear struts (9) disposed on the rear side of the driver seat (7). These left and right front struts (8) and rear struts (9) are separated from the left and right front struts (9) by the distance (L1) between the left and right front struts (9). Provided to be narrower than the interval (L2),
A door panel (15) provided to close the space between the front strut (8) and the rear strut (9) located on the same side in the left-right direction is provided on the outer surface side of the cabin frame (6), and this door panel (15) A cabin characterized in that a hinge portion (37) that supports the door in an openable and closable manner is provided on the rear support column (9).   It has left and right side beam members (18) that connect the upper ends of the front column (8) and the rear column (9) located on the same side in the left-right direction, and this side beam member (18) is centered in the front-rear direction. The door panel (15) is formed in a curved shape along the side beam member (18), and the door panel (15) is formed in a curved shape so as to bulge outward in the left-right direction. The cabin described in.   The left and right rear struts (9) are formed in a curved shape that moves inward in the left-right direction as they go upward in rear view, and a light stay (36) to which a light is attached is provided on the upper end side of the rear strut (9). The cabin according to claim 1 or 2, characterized in that.   A rear panel (14) for closing the space between the rear struts (9) is provided to be openable and closable, and a biasing member (48) for biasing the rear panel (14) in an opening direction is provided, and the rear panel (14) is closed and opened. A locking member (43) for stopping at a midway position is provided. The locking member (43) is detachable with respect to the rear panel (14), and a rear panel between the closed position and the midway position. The cabin according to any one of claims 1 to 3, wherein the cabin is configured to follow the movement of (14).

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