JP2011194929A - Cabin of working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cabin of a tractor working machine capable of simply, quickly and easily opening/closing a rear glass as there are many occasions to always monitor a rear-side working condition while operating the vehicle from the driver's cabin.SOLUTION: The rear glass 5 rotating around a window hinge 4 at an upper end and opened/closed is provided between right and left rear pillars 3 at a rear side of a driver's seat 2 of a cabin room 1. Side dampers 6, 7 are arranged at both of right and left ends of the rear glass 5, and an opening/closing handle 8 for opening/closing the rear glass 5 is provided one rear upper side of the driver's seat 2 of the cabin room 1. A damper reaction force of the side damper 6 on a side, on which the opening/closing handle 8 is arranged, is set smaller than that of the side damper 7 on an opposite side.

Description

  With respect to a cabin mounted on a work vehicle such as a tractor or a combiner, the rear glass can be easily opened and closed from the driver's seat.

  There is a technology in which a side damper is provided between the left and right side end portions of the rear glass and the outer rear pillar, and the opening and closing rotation is performed around the window hinge at the upper end portion of the rear glass (see, for example, Patent Document 1). Are known.

Japanese Patent Laying-Open No. 2009-102004 (first page, FIG. 1).

  In the cabin of a work vehicle, it is often the case that the rear working state is constantly monitored while driving from the driver's seat, and the driver extends his hand directly from the driver's seat back as necessary. The rear glass is often opened and closed. In such a case, it is necessary to be able to perform the opening / closing operation of the rear glass easily, quickly and easily.

  According to the first aspect of the present invention, a rear glass 5 is provided between the left and right rear pillars 3 at the rear side of the driver's seat 2 of the cabin room 1 so as to rotate around the window hinge 4 at the upper end portion, and this rear glass. Side dampers 6 and 7 are disposed at both left and right end portions of the vehicle 5, and an opening / closing handle 8 for opening and closing the rear glass 5 is provided on the upper side of the cabin room 1 after the driver's seat 2. The construction of the cabin of the work vehicle is characterized in that the damper reaction force of the side damper 6 on the handle 8 arrangement side is set to be weaker than the damper reaction force of the side damper 7 on the opposite side.

  When a driver who sits on the driver's seat 2 and operates to open and close the rear glass 5, grasp the opening / closing handle 8 while reaching out to the side where the opening / closing handle 8 is located. Then, it opens and closes around the window hinge 4 while pushing and pulling back and forth. At this time, the rear glass 5 can be operated against the reaction force of the left and right side dampers 6 and 7 or against this reaction force. Since the damper reaction force is set weak with respect to the side damper 7 on the opposite side, the operation force of the opening / closing handle 8 is small and weak, and the opening / closing operation can be performed easily and smoothly. Moreover, when the rear glass 5 is opened and closed by releasing the opening / closing handle 8, the side damper 7 on the side opposite to the opening / closing handle 8 side supports the damper with a strong damper reaction force. Even if the vehicle body vibrates, swings, etc., it is possible to maintain a stable opening and closing posture of the rear glass 5.

  According to a second aspect of the present invention, the opening / closing handle 8 is passed between a hinge bracket 9 having a window hinge 4 and attached to the rear glass 5 and a damper bracket 10 having one end portion of the side damper 6 attached to the rear glass 5. The upper and lower ends of the opening / closing handle 8 are attached to the hinge bracket 9 and the damper bracket 10 while being mounted.

  The opening / closing handle 8 is installed at the corner of the rear glass 5 between the window hinge 4 at the upper end of the rear glass 5 and the side damper 6 at the lateral end. The upper end of the handle 8 is attached to the hinge bracket 4 of the window hinge 4 at the upper end of the rear glass 5, and the lower end is attached to the damper bracket 10 at the lateral end of the rear glass 5. The area occupied by the vehicle is small and easy, and it is difficult for the driver's driving vision to be disturbed.

  According to the first aspect of the present invention, an opening / closing handle 8 for opening and closing the rear glass 5 is provided at a lateral end portion of the rear glass 5 so that a hand can be easily and easily gripped by extending a hand while sitting on the driver's seat 2. Moreover, since the side damper 6 on the side of the operation side opening / closing handle 8 is set to have a weak damper reaction force, the opening / closing operation force can be reduced and the opening / closing can be easily and quickly performed. It is possible to improve operability and driving safety.

  In the invention according to claim 2, since the both ends of the opening / closing handle 8 are mounted by sharing the mounting of the hinge bracket 9 and the damper bracket 10, these mounting configurations are made compact so that the field of view of the rear glass 5 is reduced. It can be maintained widely, and the opening / closing operation of the rear glass 5 can be performed smoothly and stably in conjunction with setting the damper reaction force of the side damper 6 on the side where the opening / closing handle 8 is attached weakly.

The perspective view inside the cabin room of a tractor cabin. The perspective view which shows the opening of the rear glass. The rear view of a tractor cabin. The side view. The front view of a rear glass, a top view, and a side view. The front view of a cabin. The front view of the windshield, a top view, and a side view. The inner side view of a glass door.

  Based on the drawings, the cabin 11 is a four-wheel-drive vehicle body that travels with a front wheel 13 steered by a steering handle 12 and a rear wheel 16 that is transmitted by an engine 15 mounted on the front of the vehicle body 14. 14, the cabin room 1 for driving operation is formed by covering the upper part of the driving floor 18 extending from the dashboard 17 portion having the steering handle 12 in front of the driver seat 2 to the driver seat 2 portion. The cabin 11 forms a cabin floor 19 at the bottom to form the bottom of the cabin room 1. The cabin 11 has a driving floor 18 for mounting and supporting the driver's seat 2 at the center rear of the cabin floor 19. A side fender 20 that covers the upper part of the rear wheel is formed at the rear, and the rear ends of the left and right side fenders 20 are connected by a rear cover 21 having an under glass 31. The front end portion of the cabin floor 19 forms a front frame 23 straddling the rear end portion of the bonnet 22 to the left and right, and the front end portion of the operation floor 18 is connected to the rear bottom portion of the front frame 23. The cabin 11 has a front pillar 24, a rear pillar 3, and a mitt pillar 25 disposed between the left and right and front and rear corners, and a front beam 26 and a rear beam 27 extending between upper ends of the pillars 24, 3, and 25. A roof frame 29 formed like a girder is attached and supported from the left and right side beams 28 and the like, and a cabin roof 30 is attached to the upper portion.

  A windshield 32 is provided between the left and right front pillars 24 of the cabin 11, a rear glass 5 is provided between the left and right rear pillars 3, and an intermediate portion is provided between the front pillar 24 and the rear pillar 3. A mid-pillar 25 is provided, and a glass door 33 and a side glass 34 that are opened and closed around the mid-pillar 25 are provided. Of these, the windshield 32 is configured as a front gate shape extending between the left and right front pillars 24, the upper front beam 26, the lower front frame 23, and the like. The rear glass 5 is configured to extend between the left and right rear pillars 3, the rear beam 27 at the upper part, the rear cover 21 at the lower part, and the like. The left and right glass doors 33 include a front front pillar 24, a rear mid pillar 25, a side beam 28 of the upper roof frame 29, a lower cabin floor 19, and a front upper edge of the side fender 20. The upper end of the door is provided so as to be openable and closable by a door hinge 35 with respect to the mid pillar 25, and the door handle 36 provided at the front portion of the glass door 33 is gripped to open outward. It is a form to do. A lifting step 37 is provided below the door opening. Further, the side glass 34 is provided at a window of formation between the mid pillar 25, the rear pillar 3, the upper side beam 28, the rear upper edge of the lower side fender 20, and the like, and the front edge is formed on the mid pillar 25. On the other hand, it is configured so that it can be opened widely by rotating outward with a window hinge.

  Here, between the left and right rear pillars 3 at the rear side of the driver's seat 2 in the cabin room 1, there is provided a rear glass 5 that pivots around the window hinge 4 at the upper end and opens and closes the left and right sides of the rear glass 5. Side dampers 6 and 7 are arranged at the end, and an opening / closing handle 8 for opening and closing the rear glass 5 is provided on one side of the cabin room 1 after the driver's seat 2. The damper reaction force of the damper 6 is set to be weaker than the damper reaction force of the side damper 7 on the opposite side.

  When a driver who sits on the driver's seat 2 and operates to open and close the rear glass 5, grasp the opening / closing handle 8 while reaching out to the side where the opening / closing handle 8 is located. Then, it opens and closes around the window hinge 4 while pushing and pulling back and forth. At this time, the rear glass 5 can be operated against the reaction force of the left and right side dampers 6 and 7 or against this reaction force. Since the damper reaction force is set weak with respect to the side damper 7 on the opposite side, the operation force of the opening / closing handle 8 is small and weak, and the opening / closing operation can be performed easily and smoothly. Moreover, when the rear glass 5 is opened and closed by releasing the opening / closing handle 8, the side damper 7 on the side opposite to the opening / closing handle 8 side supports the damper with a strong damper reaction force. Even if the vehicle body vibrates, swings, etc., it is possible to maintain a stable opening and closing posture of the rear glass 5.

  The opening / closing handle 8 is spanned between a hinge bracket 9 having a window hinge 4 and attached to the rear glass 5 and a damper bracket 10 having one end of the side damper 6 attached to the rear glass 5. The upper and lower ends of 8 are attached to the hinge bracket 9 and the damper bracket 10.

  The opening / closing handle 8 is installed at the corner of the rear glass 5 between the window hinge 4 at the upper end of the rear glass 5 and the side damper 6 at the lateral end. The upper end of the handle 8 is attached to the hinge bracket 4 of the window hinge 4 at the upper end of the rear glass 5, and the lower end is attached to the damper bracket 10 at the lateral end of the rear glass 5. The area occupied by the vehicle is small and easy, and it is difficult for the driver's driving vision to be disturbed.

  The rear glass 5 can be opened by rotating the upper edge of the rear glass 27 to the rear beam 27 by the window hinge 4 so as to be pivotable up and down. The opening / closing handle 8 is provided on the inner side of the rear glass 5 at the rear of the cabin room 1 on the right hand side. The left and right side dampers 6 and 7 have lower ends connected to the lower part of the rear pillar 3 and lower ends connected to a damper bracket 10 on the inner side surface of the rear glass 5. These side dampers 6 and 7 are composed of air dampers, spring dampers, or the like. The damper reaction force is the same as that of the side damper 6 on the other side. It is set to be weaker than the damper reaction force. The hinge bracket 9 of the window hinge 4 and the damper bracket 10 for attaching the upper end of the side damper 6 are exposed to the inside of the cabin room 1 on the inner surface of the rear glass 5, and the upper end of the opening / closing handle 8 is attached to the hinge bracket 9. A lower end is attached to the bracket 10. The opening / closing handle 8 is formed with an appropriate space between the inner surface of the rear glass 5 and is configured to be easily gripped by hand. A lock lever 38 is provided at the lower end of the inner side surface of the rear glass 1 and can be locked in a closed state by engaging with a lock metal 39 provided on the rear cover 21.

  A mounting bracket 40 is disposed on the outer periphery of the cabin floor 19 and the cabin 11 mounted on the vehicle body 14 is attached to the vehicle body 14 portion.

  Referring mainly to FIG. 5, the rear glass 5 has a central portion curved outward R1 in a plan view and a central portion curved outward R2 in a side view. Further, the lower edge of the rear glass 5 is formed in a left-right linear form L1, but the upper edge has a central portion curved upward L2. Reference numeral 41 denotes a window frame for mounting and holding the rear glass 5.

  Mainly based on FIGS. 6 and 7, the windshield 32 and the rear glass 5 are similarly curved R1 and R2 in a plan view and a side view. Further, the lower end edge has a central portion formed in a left-right straight line form L1, and the left and right side end portions are inclined L3 toward the outer end. The upper edge is curved L2. A lower glass 42 connected to the left and right lower edge portions of the windshield 32 is configured, and a joint 43 that is a joint portion with the lower glass 42 is joined by positioning the inclined L3 portion of the lower edge of the windshield 32. . The drainage is improved by bringing rainwater or the like down along the slope L3 edge of the joint 43.

  Referring mainly to FIG. 8, a door frame 44 extending in the front-rear and horizontal directions is provided at the center of the glass door 33, and an inner portion that is substantially parallel to the upper portion of the door frame 44 along the inside of the glass door 33. A handle 45 is provided.

DESCRIPTION OF SYMBOLS 1 Cabin room 2 Driver's seat 3 Rear pillar 4 Window hinge 5 Rear glass 6 Side damper 7 Side damper 8 Opening / closing handle 9 Hinge bracket 10 Damper bracket 11 Cabin

Claims (2)

  Between the left and right rear pillars (3) on the rear side of the driver's seat (2) in the cabin room (1), a rear glass (5) that pivots around the window hinge (4) at the upper end is provided. Side dampers (6) and (7) are arranged at the left and right side end portions of the rear glass (5), and the rear glass (5 Open / close handle (8) for opening / closing operation is provided, and the damper reaction force of the side damper (6) on the side where the opening / closing handle (8) is arranged is greater than the damper reaction force of the side damper (7) on the opposite side. A work vehicle cabin characterized by a weak setting.   A hinge bracket (9) for attaching the opening / closing handle (8) to the rear glass (5) with a window hinge (4), and a damper bracket (10) for attaching one end of the side damper (6) to the rear glass (5) The work vehicle according to claim 1, wherein the upper and lower ends of the open / close handle (8) are attached to the hinge bracket (9) and the damper bracket (10). cabin.

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