JP4575175B2 - Work vehicle - Google Patents

Description

  The present invention relates to a work vehicle that includes a cabin that covers a driving unit, and that attaches a direction indicator to the cabin.

2. Description of the Related Art Conventionally, work vehicles such as a tractor that includes a cabin that covers a driving unit and that has a direction indicator attached to the cabin are known. In such a work vehicle, a rearview mirror is attached to each of the front frames of the cabin that are erected on the front, rear, left, and right sides of the driving unit, while a direction indicator including a flasher lamp is attached to each of the rear frames (for example, (See Patent Document 1).
JP 2004-136865 A

  However, in the work vehicle as described above, since the direction indicator is attached to the rear frame so as to protrude to the side of the body, the irradiation light emitted from the direction indicator is not limited to the side and rear. Irradiated forward, it was reflected in the rearview mirror attached to the front part of the cabin, and the operator of the driving part could be dazzled. Moreover, since the direction indicator is attached to the lower part of the rear frame, the visibility from the side or the rear may be lowered depending on the surrounding conditions.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

In Claim 1, in the work vehicle which attached the direction indicator (52) to the cabin (21) which covers a driving | running | working part, this cabin (21) is attached to a front frame (22 * 22) and a rear frame (23 * 23). ), A center frame (24, 24), a fender (27, 27), etc., and the center frame (24, 24) is between the front and rear of the front frame (22) and the rear frame (23). Thus, a pair of upper and lower hinges (35, 35) that are erected on the fender (27) and rotatably support the door glass (33) of the side door on the side surface of the central frame (24, 24). The cover (53) that covers the mounting portion of the hinge (35, 35) is extended in the vertical direction on the side surface of the central frame (24, 24), and the cover (53) is provided on the side. Place direction indicator (52, 52) Opening (53a) facing the aircraft side and rear is provided at the rear corner of the cover (53), and only the side surface and the rear surface of the direction indicator (52, 52) are provided by the opening (53a). The cover (53) configured to be exposed to the outside from the cover (53) and covering the attachment portion of the hinge (35, 35) is irradiated from the direction indicator (52, 52) to the front. The shielding member is also used .

  As effects of the present invention, the following effects can be obtained.

In Claim 1, in the work vehicle which attached the direction indicator (52) to the cabin (21) which covers a driving | running | working part, this cabin (21) is attached to a front frame (22 * 22) and a rear frame (23 * 23). ), A center frame (24, 24), a fender (27, 27), etc., and the center frame (24, 24) is between the front and rear of the front frame (22) and the rear frame (23). Thus, a pair of upper and lower hinges (35, 35) that are erected on the fender (27) and rotatably support the door glass (33) of the side door on the side surface of the central frame (24, 24). The cover (53) that covers the mounting portion of the hinge (35, 35) is extended in the vertical direction on the side surface of the central frame (24, 24), and the cover (53) is provided on the side. Place direction indicator (52, 52) Opening (53a) facing the aircraft side and rear is provided at the rear corner of the cover (53), and only the side surface and the rear surface of the direction indicator (52, 52) are provided by the opening (53a). The cover (53) configured to be exposed to the outside from the cover (53) and covering the attachment portion of the hinge (35, 35) is irradiated from the direction indicator (52, 52) to the front. Since the shielding member is also used , the direction indicator can be visually recognized from the side of the machine body or from the rear, while the irradiation light to the front thereof is blocked by the shielding member.
Therefore, the irradiation light emitted from the direction indicator is not reflected on the rearview mirror attached to the front part of the cabin, and it is possible to prevent the operator inside the cabin from feeling uncomfortable with glare.

  Moreover, since the attachment part of a direction indicator and the shielding member of irradiation light can be comprised integrally, the external appearance of the whole cabin can be improved.

  In addition, the visibility of the direction indicator from the side and the rear of the machine body can be enhanced.

  Moreover, since a shielding member can be comprised using the cover of the hinge attachment part of the door glass of the side door which is the existing member of a working vehicle, manufacturing cost can be suppressed.

  Next, embodiments of the invention will be described.

FIG. 1 is a side view of a work vehicle according to a configuration example of the present invention, and FIG. 2 is a front view of the same.

  3 is a rear view, and FIG. 4 is a side view of a mounting portion of the direction indicator.

  FIG. 5 is also a rear view, and FIG. 6 is a plan sectional view.

7 is a perspective view, FIG. 8 is a side view of a mounting portion in the embodiment of the direction indicator, and FIG. 9 is a perspective view of the direction indicator and the cover.

Figure 10 is a side view of the mounting portion definitive in another configuration example of a direction indicator, FIG. 11 is a perspective view of a turn signal and the roof.

FIG. 12 is a partially enlarged side view of another configuration example of the side door, and FIG. 13 is a plan sectional view of the same.

First, an overall configuration of a work vehicle according to an exemplary configuration of the present invention as a tractor will be described.

  As shown in FIGS. 1 to 3, a front axle case 2 is swingably disposed at a front lower portion of the engine frame 1, and a front wheel 3 · is attached to both ends of a front axle pivotally supported by the front axle case 2. 3 is attached. A transmission case 4 is fixed to the rear part of the engine frame 1, and rear axle cases 5, 5 are attached to the left and right side surfaces of the rear part of the transmission case 4, and are pivotally supported by the rear axle cases 5, 5. Rear wheels 6 and 6 are attached to both ends of the rear axle.

  An engine 9 is placed in the middle of the front and rear of the engine frame 1, and the front wheels 3, 3 and the rear wheels 6, 6 are connected from the engine 9 to a transmission case, a power transmission mechanism, and the like. Power can be transmitted to In addition, a radiator, a battery, and the like are disposed in front of the engine 9, and the engine 9, the radiator, the battery, and the like are covered with a bonnet 10. Headlights 11 and 11 are provided at the front portion of the bonnet 10, and work lights 12 and 12 are provided on the left and right sides of the headlamps 11 and 11.

  A dashboard 15 is disposed behind the bonnet 10, a handle column is disposed in the dashboard 15, and a handle 16 is fixed to an upper end of a handle shaft supported by the handle column. . Further, a seat 17 is disposed behind the handle 16 disposed at the upper rear side of the dashboard 15, a step 18 is disposed at the front lower side of the seat 17, and an operation unit is configured behind the bonnet 10. Yes. The operating unit is covered with the cabin 21.

  Next, the configuration of the cabin 21 will be described.

  As shown in FIGS. 1 to 4, the cabin frame of the cabin 21 includes front frames 22 and 22, rear frames 23 and 23, central frames 24 and 24, an upper frame 25, a lower frame 26, a fender 27, and the like. ing. An upper windshield 31 and a lower windshield 32 are provided on both sides of the left and right front frames 22 and 22, the upper frame 25, and the lower frame 26 with the auxiliary frame 28 interposed therebetween, thereby forming a front window. Has been.

  Further, on both the left and right sides of the cabin frame, door glass is provided in a portion surrounded by the front frame 22, the fender 27, the central frame 24 erected on the fender 27, the upper frame 25, and the lower frame 26. 33 is provided and a side door is formed. The door glass 33 is provided with a handle 34 for opening and closing on the front outer side, and is supported by the central frame 24 via a pair of upper and lower hinges 35 and 35 on the rear side. It is comprised so that rotation is possible.

  A side window 36 is provided behind the door glass 33 in a portion surrounded by the center frame 24, the rear frame 23, the upper frame 25, and the fender 27 to form a side window. A rear glass 38 is provided in a portion surrounded by the left and right rear frames 23, 23, the upper frame 25, and the lower frame 26 to form a rear window.

  A roof 40 is provided on the upper frame 25. Thus, the roof 40, the front window including the upper and lower windshields 31 and 32, the openable and closable side door including the left and right door glasses 33 and 33, the side window including the left and right side glasses 36 and 36, and the rear glass 38. The cabin 21 is configured so that the periphery of the driving unit is covered with a rear window provided with.

  A pair of left and right direction indicators 51, 51, 52, and 52 are provided at the front and side portions of the cabin 21, respectively. Each of the direction indicators 51 and 52 is configured to be able to blink from a flasher lamp including a lens made of a transparent or translucent synthetic resin or glass, a light bulb arranged inside the lens, and the like. The front direction indicators 51 and 51 provided in the front part of the cabin 21 are respectively fixed to upper and lower middle parts of the left and right front frames 22 and 22, and are arranged so as to irradiate irradiation light forward of the aircraft. These direction indicators 51, 51, 52 and 52 also have a hazard function.

  On the other hand, as shown in FIGS. 4, 5, and 7, the side direction indicators 52, 52 provided on the side of the cabin 21 are attached to the upper portions of the left and right central frames 24, 24. Each is fixed to 24a, and is arranged so as to irradiate the irradiation light sideward or rearward. A pair of upper and lower hinges 35 and 35 for supporting the door glass 33 are attached in front of the direction indicators 52 of the left and right central frames 24. Further, a cover 53 extending in the vertical direction is attached to the central frame 24, and the attachment portion of each hinge 35 is covered by the cover 53.

  As shown in FIG. 6, the cover 53 is formed in a substantially “U” shape in plan sectional view, and is provided so as to protrude from the left and right central frames 24 to the side of the machine body, and the side surface thereof is a lateral direction. It is configured to be located on the outer side of the fuselage side than the side surface of the indicator 52. In other words, the side direction indicator 52 is arranged such that the side surface thereof is located on the inner side of the body side of the side surface of the cover 53, and is configured not to protrude from the cover 53 to the side of the body side.

  In this way, at the side portion of the cabin 21, the covers 53, 53 are arranged as shielding members in front of the left and right side direction indicators 52, 52, respectively. The irradiation light from 52 is irradiated to the side and rear of the aircraft, while the front of the aircraft is blocked by the covers 53 and 53 and is not irradiated.

  Therefore, when the side direction indicators 52 and 52 are blinking, the irradiation light emitted from the side direction indicators 52 and 52 may be reflected in the rearview mirrors 39 and 39 attached to the front portion of the cabin 21. It is possible to prevent the operator inside the cabin 21 from feeling uncomfortable with glare. Further, since the side direction indicators 52 and 52 are attached to the upper portion of the cabin 21, the visibility of the side direction indicators 52 and 52 from the side of the machine body and from the rear can be improved. it can.

  Further, as shown in FIGS. 8 and 9, in the cabin 21, a side direction indicator 52 is disposed inside a cover 53 that covers the pair of upper and lower hinges 35, 35 on each of the left and right center frames 24. Only the side surface and the rear surface can be exposed to the outside. That is, an opening 53a is provided at the rear corner of the cover 53 so as to face the side and rear of the machine body, and the side direction indicator 52 is exposed to the outside only from the opening 53a. And attached to the central frame 24 in a state of being arranged inside the cover 53.

  Further, as shown in FIGS. 10 and 11, in the cabin 21, side direction indicators 52 are respectively arranged on both the left and right sides of the roof 40 constituting the ceiling portion of the cabin 21, and only the side surface and the rear surface thereof are arranged. Can be configured to be exposed to the outside. That is, openings 40a and 40a are provided at the left and right rear corners of the roof 40 so as to face the side and the rear of the machine body, and side direction indicators 52 and 52 are provided on the side surfaces of the openings 40a and 40a. And it attaches to the upper frame 25 in the state arrange | positioned inside the roof 40 so that only a rear surface may be exposed outside.

  Therefore, when the side direction indicators 52 and 52 are blinking, the light emitted from the side direction indicators 52 and 52 is not irradiated to the front of the body because the cover 53 or the roof 40 serves as a shielding member. Irradiated only to the side and back. For this reason, as described above, it is possible to prevent glare discomfort from occurring in the operator inside the cabin 21 by eliminating the reflection of the irradiation light of the side direction indicators 52 and 52 onto the rearview mirrors 39 and 39. it can. Further, when the side direction indicators 52 and 52 are attached to the roof 40, the side direction indicators 52 and 52 are mounted at the upper portion of the cabin 21. -Visibility from the side of the fuselage and from the rear can be improved.

  Further, since the shielding member can be configured using the left and right covers 53 and 53 or the roof 40 which are existing members of the work vehicle, the manufacturing cost can be suppressed. Further, since the side direction indicators 52 and 52 can be integrally attached to the cover 53 and 53 of the cabin 21 or the roof 40, both outer surfaces can be made the same surface and the overall appearance of the cabin 21 is improved. Can be made.

  By the way, in the configuration of the cabin 21, when it is desired to take outside air into the interior or when it is desired to have a conversation with an outside person, an operation that is inconvenient and troublesome for the operator to open the side door each time is required. Therefore, in order to make such an operation unnecessary, the side door of the cabin 21 can be configured as follows.

  In this case, as shown in FIGS. 12 and 13, the left and right side doors provided on the side of the cabin 21 include a door glass 61 disposed on the front side and a plate 62 disposed on the rear side. A window made of a side glass 63 is provided between the glass 61 and the plate 62. The plate 62 is formed in a substantially “U” shape in a side view, and projecting portions 62b and 62b project in parallel from the upper and lower end portions of the base portion 62a.

  The projecting portion 62b is bent in a stepwise manner in the middle of the front and rear, and the rear side thereof is supported on the central frame 24 via a pair of upper and lower hinges 35 and 35, while the rear side of the door glass 61 is located on the front side. The end edge portion is fixed, and the door glass 61 and the plate 62 can be integrally rotated about the support shaft 35a of the hinges 35 and 35 toward the side of the machine body. Thus, the side door is configured to be openable and closable with respect to the cabin 21.

  Further, a side glass is provided in a portion surrounded by the protruding portions 62b and 62b on both the upper and lower sides of the plate 62 and the rear edge of the door glass. The side glass 63 is supported via a pair of upper and lower leaf spring members 65 and 65 provided so that the rear side protrudes forward from the base 62a of the plate 62, and the front side is attached so that the front side moves toward the outer side of the body. Be forced.

  The side glass 63 includes a lock member 66 that also serves as an opening / closing handle on the front inner side thereof, and can be fixed to the door glass 61. That is, when the front side of the side glass 63 is locked by the lock member 66, the side glass 63 moves inward of the body side against the urging force of the leaf spring-like members 65 and 65 and is in contact with the rear edge of the door glass 61. When the lock is released, it can be released from the rear edge of the door glass 61 by the urging force of the leaf spring-like members 65 and 65 and moved outward from the side of the machine body and fixed at a predetermined position. Is done.

  In this way, the window made of the side glass 63 is configured to be openable and closable with respect to the side door. As a result, the operator simply opens the window without opening the side door with a simple operation of releasing the lock by the lock member 66, and easily introduces outside air into the cabin 21 or talks with a person outside the cabin 21. It is possible to go.

The side view of the work vehicle which concerns on the example of 1 structure of this invention. Similarly front view. Similarly rear view. The side view of the attaching part of a direction indicator. Similarly rear view. Similarly plane sectional view. Similarly perspective view. The side view of the attaching part in the Example of a direction indicator. The perspective view of a direction indicator and a cover. The side view of the attaching part in another structural example of a direction indicator. The perspective view of a direction indicator and a roof. Some definitive in another example of the configuration of the side door enlarged side view. Similarly plane sectional view.

21 Cabin 24 Center frame 35 Hinge 40 Roof 52 Direction indicator 53 Cover

Claims (1)

In a work vehicle in which a direction indicator (52) is attached to a cabin (21) that covers a driving part, the cabin (21) includes a front frame (22, 22), a rear frame (23, 23), and a center frame ( 24, 24) and fenders (27, 27), etc., and the central frame (24, 24) is disposed between the front and rear of the front frame (22) and the rear frame (23). ) And a mounting portion for a pair of upper and lower hinges (35, 35) for rotatably supporting the door door door glass (33) on the side surface of the central frame (24, 24), A cover (53) covering the attachment portion of the hinge (35, 35) is extended in the vertical direction on the side surface of the central frame (24, 24), and a lateral direction indicator ( 52) and 52) of the cover (53) Openings (53a) facing the aircraft side and rear are provided at the side corners, and only the side and rear surfaces of the direction indicator (52, 52) are externally attached from the cover (53) by the openings (53a). And the cover (53) covering the mounting portion of the hinge (35/35) also serves as a shielding member for the irradiation light irradiated forward from the direction indicator (52/52). A working vehicle characterized by

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