JP2017115357A - Canopy and implement comprising canopy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a canopy and an implement comprising canopy, which comprises a front guard capable of being equipped on the canopy having no props at a front side of a driver's seat and being detached so as to ensure a front view when it is not required.SOLUTION: A canopy of an implement comprises: a first prop which is arranged on the periphery of a driver's seat and comprising a first connecting part; a second prop which is arranged on the periphery of the driver's seat and comprises a second connecting part; a roof which is arranged over the first prop and the second prop and positioned at upper side of the driver's seat; and a front guard which may be attached on/detached from the first connecting part, the second connecting part and the implement body and whose equipment position is the front side of the driver's seat.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a canopy and a work machine such as a backhoe equipped with a canopy.

When performing a crushing work or a dismantling work using a canopy-type backhoe, there is a risk that the crushed material or the dismantling material will fly toward the driver's seat. Therefore, when performing crushing work or dismantling work, measures are taken to attach a front guard in front of the driver's seat in order to protect the operator.
Patent Document 1 discloses a front guard attached to the front of a driver's seat. The front guard disclosed in Patent Document 1 has a frame-like frame and a wire mesh fixed to the frame.

JP 2012-193511 A

The front guard disclosed in Patent Document 1 is attached to a four-post canopy provided with a plurality of support posts in front and rear of a driver's seat. On the other hand, even in a canopy that does not have a support in front of the driver's seat (for example, a two-post canopy), when performing crushing work or dismantling work as necessary, a front guard is attached to protect the operator. It is hoped that.
The present invention has been made to solve the above-described problems of the prior art, and can be attached to a canopy that does not have a support in front of the driver's seat and can be removed when not needed. An object of the present invention is to provide a canopy equipped with a front guard capable of ensuring visibility and a working machine equipped with the canopy.

In order to solve the above problems, the present invention has taken the following technical means.
A canopy for a working machine according to a first aspect of the present invention includes a first support column that is provided upright around a driver's seat and having a first connection portion, and a first support column that is provided upright around the driver's seat and has a second connection portion. Two roofs, a roof provided over the first pillars and the second pillars and positioned above the driver's seat, the first connection part, the second connection part, and the machine body of the work implement can be attached and detached. And a front guard whose mounting position is in front of the driver's seat.

  According to a second aspect of the canopy of the working machine of the present invention, the front guard has a third connection portion that can be attached to and detached from the first connection portion, and a mounting position is a front right side of the driver seat. A second front pillar portion having a pillar portion, a fourth connection portion detachably connected to the second connection portion, and a mounting position on the left front side of the driver's seat; the first front pillar portion; A guard part provided between the second front pillar part, and a fifth connection part that removably connects the first front pillar part and the second front pillar part to the machine body of the work implement. ing.

  According to a third aspect of the canopy of the working machine of the present invention, the first support column includes a first vertical portion extending upward from the right rear of the driver seat, and a first horizontal portion extending forward from the upper portion of the first vertical portion. The second support column has a second vertical portion extending upward from the left rear of the driver seat, and a second horizontal portion extending forward from the upper portion of the second vertical portion, The connection part is provided at the front part of the first horizontal part, and the second connection part is provided at the front part of the second horizontal part.

A canopy for a working machine according to a fourth aspect of the present invention is characterized in that the front guard includes a substrate including the fifth connection portion, and the first front pillar portion is located on the right front of the driver seat. A first fixed portion that is fixed to the first fixed portion, a first upper extending portion that extends upward from the first fixed portion, and a first rearward extending portion that extends rearward from an upper portion of the first upper extending portion, The second front pillar portion includes a second fixing portion that is fixed to the board on the left front side of the driver seat, a second upper extension portion that extends upward from the second fixing portion, and a second upper extension portion. A second rear extending portion extending rearward from the upper portion, the third connecting portion being provided at a rear end of the first rear extending portion, and the fourth connecting portion being the second rear extending portion. It is provided at the rear end of the section.

In the canopy of the working machine according to claim 5, the first connection portion and the third connection portion are located to the left of the right end portion of the roof and rearward of the front end portion of the roof, The two connection portions and the fourth connection portion are located to the right of the left end portion of the roof and behind the front end portion of the roof.
In the canopy for a working machine according to a sixth aspect of the present invention, the guard portion is provided with a space between the first front pillar portion and the second front pillar portion and extends upward from below. A plurality of vertical members; and a connecting member that connects the first front pillar portion, the second front pillar portion, and the plurality of vertical members.

In the canopy of the working machine according to claim 7, the connection member includes a first connection member that connects an upper part of the first front pillar part and an upper part of the second front pillar part, and the first front pillar. And a second connecting member that connects the lower part of the second part and the lower part of the second front pillar part and is connected to the substrate.
In the canopy of the working machine according to an eighth aspect, the first connecting member is provided behind the front end portion of the roof and spaced downward from the roof.

The canopy of the working machine according to claim 9 is characterized in that the connecting member is below the first connecting member and above the second connecting member, above the seat surface of the driver seat and at the backrest. A third connecting member is provided below the upper end.
A canopy for a working machine according to a tenth aspect of the present invention is characterized in that the vertical member includes a first vertical member that connects the first connecting member and the third connecting member, the second connecting member, and the third connecting member. And a second vertical member for connecting the two.

In the canopy of the work machine according to an eleventh aspect, the second connecting member is formed in a plate shape, and the second vertical member is a front member connected to the front surface of the second connecting member; And a rear member connected to the rear surface of the second connecting member.
A working machine according to a twelfth aspect includes the canopy according to any one of the first to eleventh aspects.

  A canopy for a work machine according to the present invention includes a first support column that is provided around a driver's seat and having a first connection portion, a second support column that is provided around the driver's seat and has a second connection portion, A roof provided across the first support column and the second support column and positioned above the driver's seat, and can be attached to and detached from the first connecting portion, the second connecting portion, and the machine body of the work implement, and the mounting position is in front of the driver's seat. And a front guard. As a result, when crushing or dismantling work, the front guard can be attached to a canopy that does not have a support in front of the driver's seat to protect the operator, and can be removed when not needed. Can be ensured. In addition, by installing the front guard, the rigidity of the canopy is improved and the resonance frequency is increased, and vibration of the canopy during traveling can be suppressed.

  In addition, the front guard has a third connection part that is detachable from the first connection part, and is detachably connected to the first front pillar part that is mounted on the right front side of the driver's seat and the second connection part. And a guard portion provided between the first front pillar portion and the second front pillar portion, the first front pillar portion having a fourth connection portion and a mounting position at the left front of the driver's seat, And a fifth connection portion that removably connects the front pillar portion and the second front pillar portion to the machine body of the work machine, whereby the third connection portion of the front guard is connected to the first connection of the first support post. The front guard can be attached to the first support column and the second support column by connecting the fourth connection portion of the front guard to the second connection portion of the first support column. Further, the front guard can be attached to the airframe by connecting the fifth connecting portion of the front guard to the airframe.

  The first support column has a first vertical portion extending upward from the right rear of the driver seat, and a first horizontal portion extending forward from the upper portion of the first vertical portion, and the second support column is provided on the left side of the driver seat. A second vertical portion extending upward from the rear and a second horizontal portion extending forward from the upper portion of the second vertical portion; the first connecting portion is provided at a front portion of the first horizontal portion; Since the connection portion is provided at the front portion of the second lateral portion, the front guard can be easily attached to the first support column and the second support column.

The front guard has a substrate including a fifth connecting portion, and the first front pillar portion is fixed to the substrate at the right front of the driver's seat, and upward from the first fixing portion. A first extending portion extending first and a first extending portion extending rearward from the upper portion of the first extending portion; and the second front pillar portion is fixed to the board at the left front of the driver seat. A second fixed portion, a second upper extending portion extending upward from the second fixing portion, and a second rear extending portion extending rearward from the upper portion of the second upper extending portion. 1 front pillar part and 2nd front pillar part can be easily attached to an airframe via a board | substrate. In addition, the third connection portion is provided at the rear end of the first rearward extension portion, and the fourth connection portion is provided at the rear end of the second rearward extension portion. Connection with the column and connection between the second front column and the second column can be easily performed.

The first connection portion and the third connection portion are located to the left of the right end portion of the roof and rearward of the front end portion of the roof, and the second connection portion and the fourth connection portion are located to the right of the left end portion of the roof. On the other hand, by being located behind the front end portion of the roof, the upper portion of each connection portion is covered with the roof. Therefore, the upper part of each connection part can be protected by the roof.
In addition, the guard portion is provided between the first front pillar portion and the second front pillar portion, spaced apart from each other and extending from the bottom to the top, the first front pillar portion, the second By including the front pillar portion and the connecting member that connects the plurality of vertical members, the rigidity of the canopy with respect to vibration in the body width direction can be improved, and vibration in the body width direction can be suppressed.

Further, the connecting member connects the first connecting member that connects the upper part of the first front pillar part and the upper part of the second front pillar part, and the lower part of the first front pillar part and the lower part of the second front pillar part. Moreover, by having the 2nd connection member connected to the board | substrate, the rigidity with respect to the vibration of the body width direction of a canopy further improves, and the vibration of the body width direction can be suppressed more reliably.
In addition, the first connecting member is provided behind the front end of the roof and spaced downward from the roof, so that the driver can see the upper front obliquely from the gap between the first connecting member and the roof. And visibility is improved. Further, the upper portion of the gap between the first connecting member and the roof can be covered with the roof.

The connecting member has a third connecting member provided below the first connecting member and above the second connecting member, above the seat surface of the driver's seat and below the upper end of the backrest. Therefore, it is possible to guard the front near the driver's knee.
Further, the vertical member includes a first vertical member that connects the first connecting member and the third connecting member, and a second vertical member that connects the second connecting member and the third connecting member. The length of the vertical member can be shortened to improve the rigidity.

The second connecting member is formed in a plate shape, and the second vertical member has a front member connected to the front surface of the second connecting member and a rear member connected to the rear surface of the second connecting member. By doing, the effect of the rigidity improvement of the canopy by the 2nd connection member can be heightened. Further, excessive stress concentration is prevented from occurring in the lower part of the first front pillar part and the lower part of the second front pillar part.
Moreover, according to the working machine provided with the canopy mentioned above, the working machine which has the outstanding effect mentioned above is provided.

It is a side view which shows a canopy, a support frame, and a driver's seat. It is a perspective view of a turning board. It is a perspective view of a canopy and a support frame. It is a front view of a canopy and a support frame. It is a top view of a canopy and a support frame. It is the perspective view which looked at the canopy main body from back and upper direction. It is the perspective view seen from the front and upper direction of the canopy main body. It is the perspective view which looked at the canopy main body from the front and the downward direction. It is a back upper part enlarged view of a canopy main body. It is a top view of a canopy main body. It is a perspective view which shows the connection form of a 1st connection part and a 3rd connection part, or a 2nd connection part and a 4th connection part. It is a longitudinal cross-sectional view which shows the connection form of a 1st connection part and a 3rd connection part, or a 2nd connection part and a 4th connection part. It is a front perspective view of a front guard. It is a back perspective view of a front guard. It is a top view of a working machine. It is a side view of a working machine.

FIG. 15 and FIG. 16 are schematic views showing the work machine 1 according to the present invention, and illustrate a backhoe that is a turning work machine.
The work machine 1 includes a machine body 2, a canopy 3, a traveling device 4, and a work device 5. Hereinafter, in the embodiment of the present invention, the front side (left side in FIG. 16) of the driver seated on the driver's seat 7 of the work machine 1 is the front side, the rear side of the driver (right side in FIG. 16) is the back side, and the left side of the driver A description will be given assuming that the left side is the front side (FIG. 16) and the right side (the back side in FIG. 16) is the right side of the driver. Further, the horizontal direction K2 (see FIG. 16), which is a direction orthogonal to the front-rear direction K1 (see FIG. 16), will be described as the body width direction.

  The airframe 2 has a swivel 6 supported on the frame of the traveling device 4. The swivel base 6 is supported by the traveling device 4 so as to be turnable to the left and right around a vertical axis (vertical axis) via a swivel bearing (not shown). The swivel base 6 has a swivel substrate 8 and a weight 9. The swivel board 8 is connected to a swivel bearing and swivels about a vertical axis by driving a hydraulic motor (not shown). The weight 9 is provided at the rear part of the swivel base 6.

A driver's seat 7 and a canopy 3 for protecting a driver seated on the driver's seat 7 are mounted on the swivel base 6. The driver's seat 7 and the canopy 3 are provided on the left part of the swivel base 6. A specific configuration of the canopy 3 will be described later.
A support bracket 21 is provided at the right front portion of the swivel base 6. A swing bracket 22 is pivotally supported on the support bracket 21. The swing bracket 22 can swing around the vertical axis by driving a swing cylinder 16 attached to the revolving substrate 8.

The traveling device 4 is a crawler-type traveling device, and is provided on the right side and the lower left side of the machine body 2 as shown in FIG. As shown in FIG. 16, a dozer 29 is provided at the front portion of the traveling device 4.
The work device 5 includes a boom 10, an arm 11, and a work tool (bucket) 12. Further, the work device 5 includes a boom cylinder 13, an arm cylinder 14, and a work tool cylinder 15 as a drive mechanism (hydraulic actuator or the like) such as a boom. The boom cylinder 13, the arm cylinder 14, the work tool cylinder 15, and the swing cylinder 16 are constituted by hydraulic cylinders.

A base end portion of the boom 10 is pivotally supported on the swing bracket 22 so as to be swingable about the horizontal axis. A base end portion of the arm 11 is pivotally supported at the distal end portion of the boom 10 so as to be swingable about the horizontal axis. A work tool 12 is attached to the tip of the arm 11.
The boom cylinder 13 connects the swing bracket 22 and the boom 10. The arm cylinder 14 connects the boom 10 and the arm 11. The work tool cylinder 15 connects the arm 11 and the work tool 12.

  As shown in FIG. 15, the left side, the right side, and the rear side of the driver's seat 7 are surrounded by a cover. The cover includes a right cover 17, a left cover 18, and a rear cover 19. The right cover 17 is provided on the right side of the driver seat 7. The left cover 18 is provided on the left side of the driver's seat 7. The rear cover 19 is provided behind the driver seat 7. An oil tank, a battery, and the like are provided inside the right cover 17. An engine or the like is provided inside the rear cover 19.

As shown in FIG. 1, a support frame 20 that supports the canopy 3 is provided behind the driver's seat 7. The support frame 20 is fixed on the turning substrate 8.
As shown in FIGS. 1 and 2, the vertical ribs 23 </ b> R and 23 </ b> L, the partition plate 24, the first support base 25, the second support bases 26 </ b> R and 26 </ b> L, and the third support bases 27 </ b> R and 27 </ b> L are provided on the revolving substrate 8. It has been. The vertical rib 23 </ b> R is provided on the right part of the turning substrate 8. The first vertical rib 23 </ b> L is provided on the left part of the turning substrate 8. The first vertical rib 23R and the second vertical rib 23L extend rearward from the rear portion of the support bracket 21. The partition plate 24 is provided in front of the engine room ER where the engine is disposed, and extends in the body width direction. The first support base 25 is provided on the left side of the support bracket 21 and extends in the body width direction. The second support 26R is fixed to the right part of the rear surface of the partition plate 24. The second support 26L is fixed to the left part of the rear surface of the partition plate 24. The third support 27 </ b> R is provided at the right rear portion of the turning substrate 8. The third support 27L is provided at the left rear portion of the turning substrate 8.

As shown in FIGS. 1 and 3, the support frame 20 includes a right front leg 20A, a left front leg 20B, a right rear leg 20C, a left rear leg 20D, a connecting plate 20E, and a cradle 20F.
The right front leg 20A is disposed on the right rear side of the driver's seat 7 by being fixed on the second support base 26R. The left front leg 20B is arranged on the left rear side of the driver's seat 7 by being fixed on the second support base 26L. The right rear leg 20C is disposed on the rear of the right front leg 20A by being fixed on the third support 27R. The left rear leg 20D is disposed on the rear of the left front leg 20B by being fixed on the third support 27L. The connecting plate 20E extends in the body width direction, and connects the upper part of the right front leg 20A, the upper part of the left front leg 20B, the upper part of the right rear leg 20C, and the upper part of the left rear leg 20D. The cradle 20F is fixed to the upper surface of the connecting plate 20E.

Hereinafter, a specific configuration of the canopy 3 will be described.
As shown in FIG. 3, the canopy 3 includes a canopy main body 30 and a front guard 60. First, the canopy main body 30 will be described.
As shown in FIGS. 6 to 8 and FIG. 15, the canopy main body 30 includes a first support column 31, a second support column 32, and a roof 33.

  The first support column 31 and the second support column 32 are erected around the driver's seat 7. Specifically, the first support column 31 is erected on the right rear side of the driver seat 7, and the second support column 32 is erected on the left rear side of the driver seat 7. The lower end portion of the first support column 31 and the lower end portion of the second support column 32 are connected by a first connecting portion 34. The first connecting portion 34 extends in the body width direction and is fixed to the cradle 20F of the support frame 20. In this embodiment, the 1st support | pillar 31, the 2nd support | pillar 32, and the 1st connection part 34 are integrally formed by the cylindrical metal pipe.

  The 1st support | pillar 31 has the 1st vertical part 31a, the 1st horizontal part 31b, the 1st bending part 31c, and the 1st connection part 31d. The first vertical portion 31 a extends upward from the body 2. Specifically, the first vertical portion 31a extends upward from the right end portion of the first connecting portion 34 fixed to the cradle 20F. The first horizontal portion 31b extends forward from the upper portion of the first vertical portion 31a via the first bent portion 31c. The 1st horizontal part 31b inclines so that it may become a high position gradually as it goes ahead. The first horizontal portion 31b is disposed on the right side and above the driver's seat 7. The 1st bending part 31c has connected the upper part of the 1st vertical part 31a, and the rear part of the 1st horizontal part 31b. The first connection portion 31d is provided at the front end of the first horizontal portion 31b.

  The first connection portion 31d is a portion connected to a third connection portion 61d of the front guard 60 described later. As shown in FIGS. 11 and 12, the first connection portion 31d includes a first plate 31e and a nut 31f. The first plate 31e is fixed so as to close the front end portion of the first horizontal portion 31b. A through hole 31g is formed in the plate 31e. The nut 31f is fixed to the rear surface of the first plate 31e. The center of the nut 31f and the center of the through hole 31g are disposed on the same axis.

  As shown in FIG. 6, FIG. 8, etc., the second support column 32 has a second vertical portion 32a, a second horizontal portion 32b, a second bent portion 32c, and a second connection portion 32d. The second vertical portion 32 a extends upward from the body 2. Specifically, the second vertical portion 32a extends upward from the left end portion of the first connecting portion 34 fixed to the cradle 20F. The second horizontal portion 32b extends forward from the upper portion of the second vertical portion 32a via the second bent portion 32c. The 2nd horizontal part 32b inclines so that it may become a high position gradually as it goes ahead. The second horizontal portion 32b is disposed on the left side and above the driver's seat 7. The second bent part 32c connects the upper part of the second vertical part 32a and the rear part of the second horizontal part 32b.

The second connection portion 32d is a portion connected to a fourth connection portion 62d of the front guard 60 described later. As shown in FIGS. 11 and 12, the second connecting portion 32d has a second plate 32e and a nut 32f. The second plate 32e is fixed so as to close the front end portion of the second lateral portion 32b. A through hole 32g is formed in the plate 32e. The nut 32f is fixed to the rear surface of the second plate 32e. The center of the nut 32f and the center of the through hole 32g are disposed on the same axis. When the front guard 60 is not attached, the through hole 31g and the through hole 32g are closed by a cap (not shown) in order to prevent intrusion of rainwater or the like.

  As shown in FIGS. 7 and 8, the second connecting portion 35 extends in the body width direction. The second connecting portion 35 connects the first bent portion 31 c of the first support column 31 and the second bent portion 32 c of the second support column 32. On the other hand, as shown in FIG. 8, the front end of the first horizontal portion 31 b of the first support column 31 and the front end of the second horizontal portion 32 b of the second support column 32 are not connected. That is, the canopy body 30 does not have a member (such as a pipe) that connects the front end of the first horizontal portion 31b and the front end of the second horizontal portion 32b. Thereby, even in a state in which the front guard 60 described later is attached to the canopy main body 30, it is possible to ensure a diagonally upper front view of the driver seated on the driver's seat 7.

  As shown in FIG. 8, the canopy main body 30 can be provided with a reinforcing member 39 and a reinforcing plate 40. The reinforcing member 39 includes an inner corner portion between the lower portion of the first support column 31 and the right portion of the first connection portion 34, and an inner corner portion between the lower portion of the second support column 32 and the left portion of the first connection portion 34. 39 to connect. The reinforcing plate 40 can be provided on the rear surface side of the reinforcing member 39. The reinforcing plate 40 connects the rear portion of the first support column 31, the rear portion of the second support column 32, and the rear surface of the reinforcing plate 39 below the roof 33. By providing the reinforcing member 39 and the reinforcing plate 40, the strength of the canopy body 30 can be improved. 6 and the like, illustration of the reinforcing member 39 and the reinforcing plate 40 is omitted.

As shown in FIGS. 6 to 10, the roof 33 is provided over the first column 31 and the second column 32. Specifically, the roof 33 is provided so as to cover the first lateral portion 31 b of the first support column 31, the second lateral portion 32 b of the second support column 32, and the upper portion of the second connecting portion 35.
The roof 33 is plate-shaped and has a first portion 33a and a second portion 33b. As shown in FIG. 1 and the like, the first portion 33 a is located above the driver's seat 7. The first portion 33a is inclined so as to gradually become a lower position from the front to the rear. As shown in FIG. 9, the first portion 33 a is curved so that the center portion in the body width direction is the highest and gradually decreases from the center portion toward both end portions in the body width direction. Due to the inclined shape of the roof 33, it is possible to secure a wide overhead space for the driver seated on the driver's seat 7, and also to ensure a front-upper view of the driver.

As shown in FIGS. 6 and 7, the second portion 33b is bent along the first bent portion 31c and the second bent portion 32c, and is directed rearward and downward from the rear end portion of the first portion 33a. It extends. Thereby, the rear part of the upper surface of the roof 33 is curved so as to go downward as it goes rearward.
With the above-described configuration, rainwater received on the upper surface of the first portion 33a of the roof 33 is directed from the center to the end in the body width direction and from the front to the rear along the inclination and curvature of the first portion 33a. Then, it flows down along the second portion 33b. That is, rain water can be guided to the side of the driver's seat 7 and to the rear by the inclination and curvature of the first portion 33a and the curvature of the second portion 33b. Therefore, rainwater flows down to a position away from the driver seated on the driver's seat 7 and prevents the driver from getting wet.

As shown in FIG. 10 and the like, the roof 33 includes a first raised portion 36, a second raised portion 37, a third raised portion 38, and a flange 50.
The first raised portion 36, the second raised portion 37, and the third raised portion 38 are raised upward from the upper surface of the roof 33. The first raised portion 36, the second raised portion 37, and the third raised portion 38 are formed integrally with the roof 33 by press-molding the first portion 33 a of the roof 33.

The first raised portion 36 is provided along the outer edge of the roof 33. Specifically, the first raised portion 36 includes a right raised portion 36 </ b> R provided along the right edge of the roof 33, a left raised portion 36 </ b> L provided along the left edge of the roof 33, and the front of the roof 33. And a front raised portion 36F provided along the edge.
The right raised portion 36 </ b> R is formed by extending the right edge of the first portion 33 a to the outside (right side) of the first lateral portion 31 b of the first support column 31. As shown in FIG. 7, the right raised portion 36R covers the upper side of the first lateral portion 31b. The right raised portion 36R is raised upward by being curved in an arc shape along the upper portion of the outer peripheral surface of the pipe forming the first lateral portion 31b.

The left raised portion 36 </ b> L is formed by extending the left edge of the first portion 33 a to the outside (left side) of the second lateral portion 32 b of the second support column 32. As shown in FIG. 6, the left raised portion 36L covers the upper side of the second horizontal portion 32b. The left raised portion 36L is raised upward by being curved in an arc shape along the upper portion of the outer peripheral surface of the pipe forming the second lateral portion 32b.
The front raised portion 36F is formed by extending the front edge of the first portion 33a forward. The front raised portion 36F is raised upward and extends in the body width direction so as to connect the front end portion of the right raised portion 36R and the front end portion of the left raised portion 36L.

The first raised portion 36 is formed in a substantially U shape in plan view by connecting the right raised portion 36R, the left raised portion 36L, and the front raised portion 36F.
The second raised portion 37 has a plurality of raised portions provided at intervals in the body width direction and spaced apart from the first raised portion 36. In the present embodiment, the second raised portion 37 has a first raised portion 37A, the other raised portion 37B, and a central raised portion 37C. On the other hand, the raised portion 37A, the other raised portion 37B, and the central raised portion 37C are extended from the front to the rear on the upper surface of the first portion 33a.

  On the other hand, the raised portion 37A is provided on one side (right side) in the aircraft width direction, and is located on the inner side (left side) in the aircraft width direction of the right raised portion 36R. On the other hand, the raised portion 37 </ b> A shifts to one side (right side) from the front to the rear. On the other hand, a first groove 41 is formed between the raised portion 37A and the right raised portion 36R. The first concave groove 41 extends from the front to the rear along the right raised portion 36R.

  The other raised portion 37B is provided on the other side (left side) in the aircraft width direction, and is located on the inner side (right side) in the aircraft width direction of the left raised portion 36L. The other raised portion 37B transitions to the other side (left side) from the front to the rear. A second concave groove 42 is formed between the other raised portion 37B and the left raised portion 36L. The second concave groove 42 extends from the front to the rear along the left raised portion 36L.

The central raised portion 37C is provided at the center in the body width direction. Specifically, the central raised portion 37C is provided between the first raised portion 37A and the other raised portion 37B. The rear end of the central raised portion 37C is provided in front of the front end of the first raised portion 37A and the rear end of the other raised portion 37B.
As shown in FIG. 10, the distance D1 between the front part of the one raised part 37A and the right raised part 37R of the first raised part 36 is larger than the distance D2 between the rear part of the one raised part 37A and the right raised part 37R. The distance D3 between the other raised portion 37B, the front portion, and the left raised portion 37L of the first raised portion 36 is larger than the distance D4 between the other raised portion 37B, the rear portion, and the left raised portion 37L. The front end of the central raised portion 37C is provided behind the front end of the first raised portion 37A and the front end of the other raised portion 37B. Thereby, spaces S1, S2, and S3 in which rainwater can be temporarily stored in the front portion of the roof 33 are formed. Therefore, even when there is a lot of rainfall in a short time, it is possible to prevent rainwater from flowing from the front or side of the roof 33.

  The central raised portion 37C is bifurcated at a midway portion from the front to the rear, and is formed in a substantially V shape in plan view. On the other hand, a third concave groove 43 is formed between the raised portion 37A and the central raised portion 37C. A fourth concave groove 44 is formed between the other raised portion 37B and the central raised portion 37C. The third concave groove 43 and the fourth concave groove 44 extend away from each other from the front toward the rear. That is, the third concave groove 43 and the fourth concave groove 44 gradually extend from the central part in the body width direction toward the end part from the front to the rear. Thereby, rain water flowing from the front to the rear on the upper surface of the roof can be reliably guided from the center in the body width direction to the outside. Therefore, the visibility behind the driver can be ensured satisfactorily. In addition, it is possible to prevent rainwater from flowing through the vicinity of the driver's back, and to prevent the driver's back from getting wet by the flowing rainwater.

  The third raised portion 38 extends in the body width direction across the rear of the one raised portion 37A, the rear of the central raised portion 37C, and the rear of the other raised portion 37B. The front edge of the third raised portion 38 is curved so as to move backward as it goes outward from the center in the body width direction. Moreover, the 3rd protruding part 38 inclines so that it may become low toward the outward from the center of the body width direction so that it may become low toward the rear part from the front part. As a result, the rainwater that flows between the first raised portion 36 and the second raised portion 37 and guided rearward can flow from the center in the body width direction outward along the third raised portion 38. it can. Therefore, it is possible to reliably achieve the effect of ensuring the driver's rear view and preventing the driver's back from getting wet.

  A fifth concave groove 45 is formed between the third raised portion 38, the one raised portion 37A, the central raised portion 37C, and the other raised portion 37B. The fifth concave groove 45 extends in the machine body width direction, and gradually moves backward as it goes from the center part in the machine body width direction to the end part. The fifth concave groove 45 is connected to the rear part of the first concave groove 41, the rear part of the second concave groove 42, the rear part of the third concave groove 43 and the fourth concave groove 44.

A sixth concave groove 46 is provided in the front portion of the first portion 33a. The sixth concave groove 46 is formed between the front raised portion 36F and the one raised portion 37A, the central raised portion 37C, and the other raised portion 37B. The sixth groove 46 extends in the body width direction, and includes a front part of the first groove 41, a front part of the second groove 42, a front part of the third groove 43 and a front part of the fourth groove 44. It is connected with.
The first concave groove 41 to the sixth concave groove 46 have a function of a ridge that receives rainwater flowing on the upper surface of the first portion 33a and guides it to the rear (the second portion 33b) and the side (the right side and the left side). Have. Specifically, the rainwater received on the upper surface of the first portion 33a of the roof 33 is changed from the sixth groove 46 to the first groove 41, the second groove 42, and the third groove 43 by the inclination of the first portion 33a. And flows from the front to the rear through the fourth concave groove 44. Among these, rainwater that flows backward through the first concave groove 41, the second concave groove 42, and the third concave groove 43 flows down to the right part or the left part of the second part 33b due to the curvature of the first part 33a. . The rainwater that has flowed through the fourth concave groove 44 flows to the right or left through the fifth concave groove 45 and then flows down to the right or left portion of the second portion 33b.

Thus, rainwater received on the upper surface of the first portion 33a flows down to the right or left portion of the second portion 33b by the first concave groove 41 to the sixth concave groove 46. Therefore, rainwater flows down to the right rear or left rear away from the driver seated in the driver's seat 7. This effectively prevents the driver's back from getting wet.
As shown in FIGS. 6 to 10, the flange 50 has a first flange 51 and a second flange 52. As shown in FIG. 10 etc., the 1st collar part 51 has the starboard part 51a, the port part 51b, and the front collar part 51c.

  The starboard portion 51a is formed at the extended end (right end) of the right raised portion 36R. As shown in FIGS. 7 and 9, the starboard portion 51a protrudes outward (rightward) from the right portion of the outer surface of the first horizontal portion 31b. The starboard portion 51a is provided above the axis of the pipe that forms the first lateral portion 31b. Thereby, compared with the case where the starboard part 51a is provided in the axial center height of the 1st horizontal part 31b, the protrusion amount in planar view of the starboard part 51a decreases. Therefore, the driver can be prevented from coming into contact with the starboard portion 51a.

  The port side 51b is formed at the extended end (left end) of the left raised portion 36L. As shown in FIGS. 6 and 9, the port part 51 b protrudes outward (leftward) from the left part of the outer surface of the second horizontal part 32 b. The port portion 51b is provided above the axis of the pipe that forms the second lateral portion 32b. Thereby, compared with the case where the port side part 51b is provided in the axial center height of the 2nd horizontal part 32b, the protrusion amount in planar view of the port side part 51b decreases. Therefore, it is possible to prevent the driver from contacting the port part 51b.

The front collar portion 51c is formed at the extended end (front end) of the front raised portion 36F, and projects forward. The front collar part 51c connects the front end part of the starboard part 51a and the front end part of the left starboard part 51b. Thereby, the starboard part 51a, the port part 51b, and the forehead part 51c are connected in substantially U shape by planar view.
As described above, the canopy 3 has the first brim part 51 (the starboard part 51a, the port part 51b, and the front part 51c) that protrudes outward from the outer surface of the first lateral parts 31b and 32b and receives rainwater. I have. As a result, the first eaves 51 causes the raindrops received on the upper surface of the roof 33 to flow around the outer surfaces of the first horizontal portions 31b and 32b of the columns (first column 31 and second column 32). Can be prevented. In addition, the water drop is blocked by the first brim 51 in the middle of flowing down along the outer surfaces of the first horizontal portions 31b and 32b of the support column, so that the flow speed decreases. Therefore, even if the water droplet passes over the first flange 51 and wraps around the lower part of the outer surface of the first lateral portion 31b, 32b, the speed of the water droplet in the wraparound direction (direction toward the driver's seat 7) ) Is smaller than the speed. Thereby, it is possible to prevent water droplets from falling toward the driver's seat 7 side. In addition, since the first flange 51 (the starboard 51a and the port 51b) is provided above the axial center of the pipe forming the first lateral portions 31b and 32b, water droplets are disposed on the outer peripheral surface of the pipe. , It is possible to reliably prevent the water droplets from falling downwardly toward the driver's seat.

  Moreover, the 1st collar part 51 (the starboard part 51a, the left starboard part 51b, and the front collar part 51c) is formed in the extension part (the right protruding part 36R, the left protruding part 36L, and the front protruding part 36F). Therefore, the first flange 51 is formed integrally with the roof 33, and a separate member for providing the first flange 51 becomes unnecessary. Moreover, the 1st collar part 51 can be formed in the roof 33 by one press molding. Therefore, the number of parts and the number of manufacturing steps can be reduced. In addition, the strength of the first flange 51 can be improved.

As shown in FIGS. 6 and 9, the starboard portion 51a extends from the outer surface of the first lateral portion 31b to the outer surface of the middle portion of the first bent portion 31c. Specifically, the starboard portion 51a extends rearward from the right end portion of the front flange portion 51c along the outer surface (right surface) of the first lateral portion 31b and reaches the outer surface (right surface) of the first bent portion 31c. It does not reach the outer surface (right surface) of one vertical portion 31a.
As a result, the rainwater that has flown along the starboard portion 51a along the first bent portion 31c does not flow downward along the first bent portion 31c, and as shown by an arrow A in FIGS. One of the bent portions 31c jumps out obliquely downward. Therefore, it becomes possible to make the rainwater flowing along the starboard portion 51a jump out in the direction away from the driver's seat 7 (backward).

As shown in FIGS. 6 and 9, the port portion 51b extends from the outer surface of the second lateral portion 32b to the outer surface of the middle portion of the second bent portion 32c. Specifically, the port part 51b extends rearward from the left end part of the front part 51c along the outer surface (left surface) of the second lateral part 32b and reaches the outer surface (left surface) of the second bent part 32c. 2 The outer surface (left surface) of the vertical portion 32a is not reached.
As a result, the rainwater that has flowed along the port 51b along the second bent portion 32c does not flow downward along the second bent portion 32c, as shown by an arrow B in FIGS. The two bent portions 32c jump out obliquely downward.

As described above, the extending range of the starboard portion 51a and the port portion 51b is limited to the range up to the middle of the first bent portions 31c and 32c without extending to the first vertical portions 31a and 32a. It becomes possible to make the rainwater flowing along the collar part 51a and the port part 51b jump out in the direction away from the driver's seat 7 (rearward).
The second flange 52 protrudes rearward from the rear end of the upper surface of the roof 33. Specifically, as shown in FIGS. 6 and 9, the second flange portion 52 is provided at the lower end portion of the second portion 33b, and protrudes in the direction away from the lateral portions 31b and 32b (backward). ing. As shown in FIG. 1, the 2nd collar part 52 is arrange | positioned at the back of a driver's seat.

As shown in FIGS. 9 and 10, the protruding length L <b> 5 of the second flange portion 52 is larger than the protruding length L <b> 6 of the first flange portion 51. As a result, rainwater that is about to flow down behind the driver's seat 7 can be reliably received by the second eaves part 52.
The second flange 52 extends in the direction from the first support 31 to the second support 32 (machine width direction). The extension length L7 (see FIG. 9) of the second flange 52 is the distance between the first support column 31 and the second support column 32 (the distance between the axis of the first support column 31 and the axis of the second support column 32). Shorter than L0). In the present embodiment, the right end portion of the second collar portion 52 is positioned to the left of the axis of the first support column 31, and the left end portion of the second flange portion 52 is positioned to the right of the axis of the second support column 32. positioned.

As shown in FIG. 9, the second flange portion 52 is curved so that the center portion in the machine body width direction is the highest and gradually decreases from the center portion toward both end portions in the machine body width direction. Therefore, the rainwater received by the 2nd collar part 52 is guide | induced to the 1st support | pillar 31 side or the 2nd support | pillar 32 side. Thereby, the rain water flowing down between the 1st support | pillar 31 and the 2nd support | pillar 32 among the rainwater flowing down along the 2nd part 33b is received by the 2nd collar part 52, and the 1st support | pillar 31 side or It is guided toward the second support column 32 and flows down along the first support column 31 or the second support column 32. Further, the rainwater flowing down along the first bent portion 31c of the first support column 31 and the second bent portion 32c of the second support column 32 does not hit the second eaves portion 52, and thus the first support column 31 or the second support column as it is. It flows down along 32. That is, most of the rainwater flows down along the first support column 31 or the second support column 32. Therefore, it is prevented that rainwater flows between the first support column 31 and the second support column 32 and wets the driver's back.

Next, the front guard 60 will be described. The front guard 60 is attachable to and detachable from the first connecting portion 31 d, the second connecting portion 32 d and the body 2 of the canopy main body 30 and the mounting position is in front of the driver seat 7.
As shown in FIGS. 13 and 14, the front guard 60 includes a substrate 66, a first front pillar 61, a second front pillar 62, and a guard 63.

  As shown in FIGS. 13 and 14, the substrate 66 is formed in a substantially rectangular shape in plan view, and is provided below the front guard 60. As shown in FIG. 1, the substrate 66 is fixed to the upper surface of the first support base 25 of the turning substrate 8. Thereby, the front guard 60 is attached to the airframe 2. In the mounting position, the longitudinal direction of the substrate 66 faces the body width direction. Hereinafter, in the description of the front guard 60, the front, rear, left, and right directions are based on the mounting position on the airframe 2 (see FIGS. 15 and 16).

  As shown in FIG. 14, the substrate 66 has a first through hole 66a and a second through hole 66b. Two first through holes 66a are provided. The first through hole 66aR on the right side is provided in the right part of the substrate 66. The left first through hole 66aL is provided in the left portion of the substrate 66. The second through hole 66b is provided between the right first through hole 66aR and the left first through hole 66aL. A plurality of (three in the illustrated example) second through holes 66b are provided at intervals in the body width direction. The board 66 is connected to the upper surface of the first support base 25 by inserting a bolt through the second through hole 66 b and screwing it into a screw hole 25 a (see FIG. 1) provided in the first support base 25. That is, the substrate 66 includes a connection portion (referred to as a fifth connection portion 66b) that connects the front guard 60 to the machine body 2 of the work machine 1.

As shown in FIG. 15, the first front pillar 61 is erected on the right front side of the driver's seat 7. In other words, the mounting position of the first front pillar 61 is the front right of the driver's seat 7. The first front pillar portion 61 is formed of a cylindrical metal pipe or the like.
As shown in FIGS. 13 and 14, the first front pillar portion 61 includes a first fixing portion 61a, a first upper extension portion 61b, a first rear extension portion 61c, and a third connection portion 61d. ing.

  The first fixing portion 61 a is provided at the lower end of the first front pillar portion 61, and is fixed to the substrate 66 at the right front of the driver seat 7. Specifically, the first fixing portion 61a has a configuration in which the lower end of the first front pillar portion 61 is fitted into the first through hole 66aR of the substrate 66 and fixed by welding or the like. The first upper extending portion 61b extends upward from the first fixed portion 61a, then bends and extends rearward and upward (inclined rearward upward). The first rear extension 61c extends rearward from the upper part of the first upper extension 61b. The third connecting portion 61d is provided at the rear end of the first rearward extending portion 61c.

  The third connection portion 61 d is a portion connected to the first connection portion 31 d provided on the first support column 31. As shown in FIG. 5, the first connection portion 31 d and the third connection portion 61 d are located to the left of the right end portion of the roof 33 and behind the front end portion of the roof 33. As a result, the upper side of the first connection portion 31d and the third connection portion 61d is covered with the roof 33. Therefore, the upper part of the first connection part 31d and the third connection part 61d can be protected.

As shown in FIGS. 11-14, the 3rd connection part 61d has the 3rd plate 61e. A through hole 61g is formed in the upper part of the third plate 61e. The rear end of the first rear extension 61c is connected to the lower front surface of the third plate 61e. As shown in FIGS. 11 and 12, with the upper rear surface of the third plate 61e and the front surface of the first plate 31e in contact with each other, the bolt 61f is inserted into the through hole 61g and the through hole 31g and screwed into the nut 31f. By combining, the first connecting portion 31d and the third connecting portion 61d are connected.

As shown in FIG. 15, the second front pillar 62 is erected on the left front side of the driver's seat 7. That is, the mounting position of the second front pillar 62 is the front left of the driver's seat 7. The second front pillar 62 is formed of a cylindrical metal pipe or the like. The 2nd front pillar part 62 has the 2nd fixing | fixed part 62a, the 2nd upper extension part 62b, the 2nd back extension part 62c, and the 4th connection part 62d.
The second fixing portion 62 a is provided at the lower end of the second front pillar portion 62, and is fixed to the substrate 66 at the left front of the driver seat 7. Specifically, the second fixing portion 62a has a configuration in which the lower end of the second front pillar portion 62 is fitted into the first through hole 66aL of the substrate 66 and fixed by welding or the like. The second upper extension 62b extends upward from the second fixing part 62a, then bends and extends rearward and upward (inclined rearward upward). The second rear extension 62c extends rearward from the upper part of the second upper extension 62b. The fourth connection portion 62d is provided at the rear end of the second rear extension 62c.

  The fourth connection part 62 d is a part connected to the second connection part 32 d provided on the second support column 32. As shown in FIG. 5, the second connection portion 32 d and the fourth connection portion 62 d are located rightward from the left end portion of the roof 33 and rearward from the front end portion of the roof 33. As a result, the upper side of the second connection portion 32d and the fourth connection portion 64d is covered with the roof 33. Therefore, the upper part of the second connection part 32d and the fourth connection part 64d can be protected.

  As shown in FIGS. 11-14, the 4th connection part 62d has the 4th plate 62e. A through hole 62g is formed in the upper part of the fourth plate 62e. The rear end of the second rear extension 62c is connected to the lower front surface of the fourth plate 62e. As shown in FIGS. 11 and 12, with the upper rear surface of the fourth plate 62e and the front surface of the second plate 32e in contact with each other, the bolt 62f is inserted into the through hole 62g and the through hole 32g and screwed into the nut 32f. As a result, the second connection portion 32d and the fourth connection portion 62d are connected.

  The front guard 60 can be attached to the front portion of the canopy body 30 by connecting the first connection portion 31d and the third connection portion 61d, and the second connection portion 32d and the fourth connection portion 62d. Here, the 1st connection part 31d and the 3rd connection part 61d, and the 2nd connection part 32d and the 4th connection part 62d are connected by the screwing of the volt | bolt and the nut. Therefore, the first connection portion 31d and the third connection portion 61d, and the second connection portion 32d and the fourth connection portion 62d can be attached and detached. Therefore, the front guard 60 can be detachably attached to the canopy main body 30.

In addition, the connection form of the 1st connection part 31d and the 3rd connection part 61d and the 2nd connection part 32d and the 4th connection part 62d should just be a removable form, and is limited to the connection by a volt | bolt and a nut. Not. For example, the through holes 31g of the first plate 31e and the through holes 32g of the second plate 32e may be screw holes, and the nuts 31f and 32f may be omitted.
As shown in FIG. 1, FIG. 13, etc., the second front pillar 62 has a handrail 62h. The handrail 62h protrudes forward from the middle part of the second upper extension 62b. When the second front pillar 62 has the handrail 62h, it is possible to safely get on and off by gripping the handrail 61h when the driver gets on and off. Instead of providing the handrail 62h on the second front pillar 62, a similar handrail may be provided on the first front pillar 61. Moreover, you may provide a handrail in both the 1st front pillar part 61 and the 2nd front pillar part 62. FIG.

The guard part 63 is provided between the first front pillar part 61 and the second front pillar part 62. The guard part 63 has a vertical member 64 and a connecting member 65.
A plurality of vertical members 64 (11 in the illustrated example) are provided with a space between the first front pillar portion 61 and the second front pillar portion 62. Each vertical member 64 is formed of a metal belt-like plate and extends upward from below.

The connecting member 65 extends in the body width direction, and connects the first front pillar portion 61, the second front pillar portion 62, and the plurality of vertical members 64. The connecting member 65 includes a first connecting member 651, a second connecting member 652, and a third connecting member 653.
The first connecting member 651 connects the upper part of the first front pillar part 61 and the upper part of the second front pillar part 62. Specifically, the first connecting member 651 includes a bent portion extending from the first upper extending portion 61b to the first rear extending portion 61c and a bent portion extending from the second upper extending portion 62b to the second rear extending portion 62c. It is connected.
Thereby, the bent part provided in the 1st front pillar part 61 and the 2nd front pillar part 62 is reinforced.

  As shown in FIGS. 3 and 4, the first connecting member 651 is provided downward from the roof 33 with an interval. That is, a gap G is formed between the first connecting member 651 and the roof 33. Thus, coupled with the absence of a member (such as a pipe) that connects the front end portion of the first horizontal portion 31b and the front end portion of the second horizontal portion 32b, the driver sitting on the driver's seat 7 is inclined from the gap G. The front upper part can be visually recognized, and visibility is improved. As shown in FIG. 5, the first connecting member 651 is provided behind the front end of the roof 33. Thereby, the upper part of the clearance gap G can be covered with the roof 33, and a driver | operator can be protected.

  As shown in FIGS. 13 and 14, the second connecting member 652 connects the lower part of the first front pillar part 61 and the lower part of the second front pillar part 62. The second connecting member 652 is formed in a plate shape, and has a lower center in the body width direction and a higher one side (right side) and the other side (left side) in the body width direction. The lower part of the second connecting member 652 is connected to the substrate 66. The second connecting member 652 improves the rigidity of the canopy 3 against vibrations in the body width direction. Further, the second connecting member 652 prevents excessive stress concentration from occurring in the lower part of the first front pillar part 61 and the lower part of the second front pillar part 62.

  As shown in FIGS. 13 and 14, the third connecting member 653 is provided below the first connecting member 651 and above the second connecting member 652. The third connecting member 653 connects the bent portion of the first upper extending portion 61b and the bent portion of the second upper extending portion 62b. As shown in FIG. 1, the 3rd connection member 653 is provided above the seat surface 7a of the driver's seat 7, and below the upper end of the backrest part 7b. Specifically, the third connecting member 653 is located at a height near the knee of the driver seated on the driver's seat 7. As a result, it is possible to guard the front in the vicinity of the driver's knee.

  As shown in FIGS. 13, 14, etc., the vertical member 64 includes a first vertical member 641 and a second vertical member 642. The first vertical member 641 connects the first connecting member 651 and the third connecting member 653. The second vertical member 642 connects the second connecting member 652 and the third connecting member 653. The second vertical member 642 has a front member 642F and a rear member 642R. The lower part of the front member 642F is connected to the front surface of the second connecting member 652. The front member 642F is provided on the other side (left side) in the body width direction. The lower part of the rear member 642R is connected to the rear surface of the second connecting member 653. The rear member 642R is provided on one side (right side) in the body width direction. Since the rear member 642R is connected to the rear surface of the second connecting member 653, interference between the rear member 642R and the work device 5 can be avoided. Further, the front surface of the second connecting member 653 is reinforced by the front member 642F, and the rear surface of the second connecting member 653 is reinforced by the rear member 642R, whereby the rigidity of the second connecting member 653 can be increased.

  As described above, by connecting the third connecting portion 61d of the front guard 60 to the first connecting portion 31d of the canopy body 30 and connecting the fourth connecting portion 62d to the second connecting portion 32d, Can be attached to the front portion of the canopy body 30. Further, by connecting the fifth connecting portion 66 b of the front guard 60 to the body 2, the lower portion of the front guard 60 can be attached to the front portion of the body 2. Therefore, when performing the crushing work or the dismantling work, the front guard 60 is attached to the canopy main body 30 and the airframe 2 to be used, so that an operator seated in the driver's seat can be protected from flying objects from the front. . In addition, when performing normal work, the front guard 60 can be removed from the canopy body 30 and the airframe 2 and used, thereby ensuring a good visibility in front of the worker.

Moreover, by attaching the front guard 60 to the canopy main body 30 and the airframe 2 and using it, the vibration of the canopy 3 can be suppressed. The conventional two-column canopy has low rigidity and resonance frequency, and vibrates greatly in the front-rear direction of the airframe when traveling. On the other hand, in the canopy 3 of the present embodiment, the canopy body 30 and the front guard 60 are integrated, and the front portion of the canopy 3 is supported by the front guard 60. Therefore, the rigidity of the canopy 3 is improved and the resonance frequency is increased, and the roof 33 and the like are prevented from greatly vibrating in the front-rear direction of the airframe during traveling. Further, since the front guard 60 includes the connecting member 65 (particularly, the second connecting member 652), rigidity against vibration in the body width direction is improved, and vibration in the body width direction can also be suppressed.

  As mentioned above, although this invention was demonstrated, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Work implement 2 Machine body 3 Canopy 7 Driver's seat 7a Seat surface 7b Backrest part 31 1st support | pillar 31a 1st vertical part 31b 1st horizontal part 31d 1st connection part 32 2nd support | pillar 32a 2nd vertical part 32b 2nd horizontal part 32d 2nd connection part 33 Roof 43 Groove (3rd groove)
44 groove (fourth groove)
60 Front guard 61 1st front pillar part 61a 1st fixing part 61b 1st extension part 61c 1st extension part 61d 3rd connection part 61h Handrail 62 2nd front pillar part 62a 2nd fixing part 62b 2nd extension part 62c 2nd extension 62d 4th connection part 63 guard part 66 board | substrate 66b 5th connection part 64 Vertical member 641 1st vertical member 642 2nd vertical member 642F Front member 642R Rear member 65 Connection member 651 1st connection member 652 1st 2 connecting member 653 3rd connecting member

Claims (12)

A first strut standing around the driver's seat and having a first connection;
A second support column standing around the driver's seat and having a second connection portion;
A roof provided across the first support column and the second support column and positioned above the driver seat;
A front guard that is attachable to and detachable from the first connecting portion, the second connecting portion, and the machine body of the work machine, and the mounting position is in front of the driver seat;
Work machine canopy equipped with. The front guard is
A first front pillar portion having a third connection portion detachably attached to the first connection portion, and the mounting position being the right front of the driver seat;
A second front pillar portion having a fourth connection portion detachably connected to the second connection portion, and the mounting position being the left front of the driver seat;
A guard portion provided between the first front pillar portion and the second front pillar portion;
A fifth connecting portion for detachably connecting the first front pillar portion and the second front pillar portion to a machine body of a work machine;
The working machine canopy according to claim 1, comprising: The first support column includes a first vertical portion extending upward from the right rear of the driver seat, and a first horizontal portion extending forward from an upper portion of the first vertical portion,
The second support column includes a second vertical portion extending upward from the left rear of the driver seat, and a second horizontal portion extending forward from an upper portion of the second vertical portion,
The first connection portion is provided at a front portion of the first lateral portion,
The work equipment canopy according to claim 2, wherein the second connection portion is provided at a front portion of the second lateral portion. The front guard has a substrate including the fifth connection portion,
The first front pillar portion includes a first fixing portion that is fixed to the board at the right front of the driver seat, a first upper extension portion that extends upward from the first fixing portion, and the first upper extension portion. A first rear extension extending rearward from the upper part of the
The second front pillar portion includes a second fixing portion that is fixed to the board at the left front of the driver seat, a second upper extension portion that extends upward from the second fixing portion, and the second upper extension portion. A second extension extending rearward from the top of the
The third connecting portion is provided at a rear end of the first rearward extending portion,
The canopy for a working machine according to claim 2 or 3, wherein the fourth connection portion is provided at a rear end of the second rearward extension portion. The first connection part and the third connection part are located to the left of the right end of the roof and to the rear of the front end of the roof,
The work equipment canopy according to any one of claims 2 to 4, wherein the second connection portion and the fourth connection portion are located to the right of the left end portion of the roof and to the rear of the front end portion of the roof. The guard part is
A plurality of vertical members provided at intervals between the first front pillar part and the second front pillar part and extending upward from below;
The canopy for a working machine according to any one of claims 2 to 5, further comprising: a connecting member that connects the first front pillar part, the second front pillar part, and the plurality of vertical members. The connecting member is
A first connecting member that connects the upper part of the first front pillar part and the upper part of the second front pillar part;
The work machine canopy according to claim 6, further comprising: a second connecting member that connects the lower portion of the first front column portion and the lower portion of the second front column portion and is connected to the substrate.   The work equipment canopy according to claim 7, wherein the first connecting member is provided behind the front end of the roof and spaced downward from the roof.   The connecting member includes a third connecting member provided below the first connecting member and above the second connecting member, above the seat surface of the driver seat and below the upper end of the backrest. The working machine canopy according to claim 6 or 7. The vertical member is
A first vertical member connecting the first connecting member and the third connecting member;
The work machine canopy according to claim 8, further comprising a second vertical member that connects the second connecting member and the third connecting member. The second connecting member is formed in a plate shape,
The work machine according to claim 10, wherein the second vertical member includes a front member connected to a front surface of the second connecting member and a rear member connected to a rear surface of the second connecting member. Canopy.   The working machine provided with the canopy in any one of Claims 1-11.

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