JP2015140147A - Roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof by which rainwater hardly adheres to a window pane even if the undersurface of the roof is an inclined plane.SOLUTION: An outer roof 200 that constitutes a ceiling part 13 of a cabin 20 of a tractor 10 includes a right overhang part 210R and a left overhang part 210L that overhang outward in the right and left directions from the right and left windows of the cabin 20. The respective undersurfaces of the right overhang part 210R and the left overhang part 210L have a right overhang part inclined surface 210Rc and a left overhang part inclined surface 210Lc that are inclined downward toward the window side from the outer edge part side of the right and left overhang parts, and a bank-like right side projecting part 100R and a bank-like left side projecting part 100L that project downward from the right and left inclined surfaces.

Description

  The present invention relates to a roof constituting a ceiling portion of a cabin of a traveling vehicle such as a tractor.

  2. Description of the Related Art Conventionally, a roof of a ceiling portion of a tractor cabin is known in which a dam portion (concave portion) is formed on the lower surface of the roof in order to prevent rainwater adhering to the roof from adhering to the cabin window glass. (For example, refer to Patent Document 1).

JP-A-10-273070

  However, in the roof of the tractor shown in Patent Document 1, if the lower surface is flat, the effect is exhibited even in the recessed portion, but when the lower surface is an inclined surface, the rainwater flows over the recessed portion with a momentum to flow down, There was a problem that rainwater dropped and adhered to the window glass side of the cabin.

  An object of the present invention is to provide a roof in which rainwater hardly adheres to a window glass even when the lower surface of the roof is an inclined surface in view of the above-described conventional problems.

In order to achieve the above object, the first present invention provides:
A roof that forms a ceiling of a cabin of a traveling vehicle,
A projecting portion projecting outward in the left-right direction from the left and right windows of the cabin;
The underside of the overhanging part is
An inclined surface that forms a downward slope from the outer edge side of the overhang portion toward the window side;
A bank-like convex portion protruding downward from the inclined surface,
It is the roof characterized by this.

  As a result, rainwater that flows down along the surface of the roof falls at the convex portions, so that it is difficult for rainwater to adhere to the window glass of the cabin.

The second aspect of the present invention
The said convex part is the roof of the said 1st this invention characterized by being formed in the said outer edge part side where the said downward slope is started among the said inclined surfaces.

  Thereby, the rain water flowing down from the upper surface of the roof can be surely dropped before the momentum of flowing down is increased by the inclined surface.

The third aspect of the present invention
The said convex part is the roof of the said 1st or 2nd invention characterized by being formed over the front-back direction of the said window of the said cabin.

  Thereby, rain water can be dropped from a convex part over the whole side glass.

The fourth aspect of the present invention is
The rear end portion of the convex portion is formed up to a position above a V-shaped hook formed on a rear strut member among strut members arranged vertically in the four corners of the cabin. The roof according to the third aspect of the present invention.

  Rainwater can be guided backwards using a V-shaped hook.

The fifth aspect of the present invention provides
The roof of the third or fourth aspect of the present invention is characterized in that a lower end portion of the convex portion forms a downward slope from the front side toward the rear side.

  Thereby, rainwater can be dropped to the back side of a cabin along a convex part.

  ADVANTAGE OF THE INVENTION According to this invention, even if the lower surface of a roof is an inclined surface, the roof which rain water cannot adhere to a window glass can be provided.

Side view of the tractor according to the first embodiment of the present invention. The top view which mainly shows the ceiling part of a cabin among the tractors in Embodiment 1 concerning this invention. A-A 'schematic cross-sectional view of the ceiling shown in FIG. B-B 'schematic cross-sectional enlarged view of the ceiling part of the tractor shown in FIG. Right side view of the ceiling portion of the tractor in the first embodiment (A): The schematic perspective view which looked up at the ceiling part of the tractor in this Embodiment 1 from the right front to the left back, (b): P section enlarged view of Fig.6 (a) About the lower surface side of the outer roof in the first embodiment, it is a perspective view looking up rearward from the lower left front, generally showing the left half The figure corresponding to FIG. 3 for demonstrating the formation position of a 2nd right side convex part as a modification of Embodiment 1 concerning this invention. Schematic perspective view showing the rear end lower portion of the tractor cabin according to the first embodiment The perspective view which looked up the back of the tractor in this Embodiment 1 diagonally upward from the downward direction The schematic which looked at the cabin of the tractor in this Embodiment 1 from back Left side view of cab of tractor in Embodiment 1 The perspective view which shows the state which suspended the cabin using the cabin suspension jig in the manufacturing process of the tractor in this Embodiment 1. FIG.

  A tractor cabin according to an embodiment of the present invention will be described below with reference to the drawings.

(Embodiment 1)
First, the schematic configuration of the tractor 10 according to the first embodiment will be described with reference to FIG.

  FIG. 1 is a side view of a tractor 10 according to a first embodiment of the present invention.

As shown in FIG. 1, the tractor 10 of the first embodiment is
An engine 7 is provided inside the bonnet 1 on the front side of the vehicle body, and the rotational power of the engine 7 is transmitted to the pair of left and right rear wheels 3R and 3R via various transmissions in the transmission case 2 to travel by two-wheel drive. Or, it is configured to transmit to a pair of left and right front wheels 3F, 3F and a pair of left and right rear wheels 3R, 3R to travel by four-wheel drive. A fender 17 is provided above the pair of left and right rear wheels 3R, 3R.

  Further, the rotational power of the engine 7 is used to charge the battery 4 disposed in front of the engine 7 or to circulate the refrigerant of the air conditioner unit 30 that performs air conditioning inside the cabin 20 described later. ing.

  Further, a cabin 20 as a cockpit in which the handle 5 and the cockpit 6 are arranged is provided behind the engine 7.

  The cabin 20 has an air conditioner unit 30 that cools and heats the inside of the cockpit, and an upper part is covered with a ceiling portion 13 that is built in the rear of the cabin. 16L and 16R are attached to be freely opened and closed. Further, a windshield 14 is attached in front of the cockpit 6, a pair of left and right window glasses 15L and 15R are respectively attached to the left and right sides of the cockpit 6, and a rear glass 11R is further behind the cockpit 6. Is attached.

  Further, below the pair of left and right door glasses 16L and 16R, a step 8 is provided for the operator to go up and down the cockpit.

  In addition, a pair of left and right side mirrors 18 are disposed on the left and right front outer sides of the cabin 20.

  Next, the structure of the ceiling part 13 and the bank-like convex part formed in the ceiling part 13 are demonstrated using FIG. 2, FIG.

  FIG. 2 is a plan view mainly showing the ceiling portion 13 of the cabin 20 in the tractor 10.

  FIG. 3 is a schematic cross-sectional view taken along line A-A ′ of the ceiling portion 13 shown in FIG. 2.

  As shown in FIG. 3, the external structure of the ceiling portion 13 includes an outer roof 200 and an inner roof 300 that are arranged to face each other.

  The outer roof 200 is disposed outside the cabin 20, has a hollow portion 200b therein, and has a double structure including an upper surface side outer roof 200a and a lower surface side outer roof 200c. The outer roof 200 of the present embodiment is an example of the roof of the present invention.

  The outer roof 200 is a resin molded member that is created by, for example, a blow mold.

  Further, the outer roof 200 includes a right projecting portion 210R projecting outward in the right direction and a left projecting portion 210L projecting outward in the left direction (see FIG. 7) from the respective window frame upper portions 400 on the left and right sides of the cabin 20. Have.

  On the other hand, the inner roof 300 is disposed on the inner side of the cabin 20 and is directed upward, i.e., on the lower outer roof 200c, in the inner roof central portion 300A having a substantially rectangular shape in plan view located above the cockpit 6. It is formed so as to be recessed. That is, the inner roof 300 is disposed at a peripheral portion of the inner roof central portion 300A with a predetermined space between the inner roof 300 and the lower surface side outer roof 200c. For example, the air conditioner unit 30 is disposed in the predetermined space behind the inner roof central portion 300A (see FIG. 1).

  Further, the lower surface of the right overhanging portion 210R (see FIG. 3) is formed by a right overhanging portion inclined surface 210Rc and a right overhanging portion inclined surface 210Rc which form a downward gradient from the outer edge portion 210Rd of the right overhanging portion 210R toward the window frame upper portion 400. A bank-like right convex portion 100R protruding downward is formed in the vicinity of the outer edge portion 210Rd where the downward slope is started.

  Further, the lower surface of the left projecting portion 210L (see FIG. 7) includes a left projecting portion inclined surface 210Lc that forms a downward slope from the outer edge portion 210Ld of the left projecting portion 210L toward the window frame upper portion 400 (see FIG. 3). A bank-like left convex portion 100L protruding downward is formed in the vicinity of the outer edge portion 210Ld where the downward slope of the portion inclined surface 210Lc is started. The right convex portion 100R and the left convex portion 100L are symmetrical.

  Next, with reference to FIGS. 4 to 7, further description will be given mainly focusing on the right convex portion 100 </ b> R.

  In addition, since the left convex part 100L has the same structure as the right convex part 100R, the description thereof is omitted.

  4 is an enlarged schematic cross-sectional view of the ceiling portion 13 of the tractor 10 shown in FIG. 2, and FIG. 5 is a right side view of the ceiling portion 13 of the tractor 10.

  FIG. 6A is a schematic perspective view of the ceiling portion 13 of the tractor 10 looking up from the right front side to the left rear side, and FIG. 6B is an enlarged view of a P portion of FIG. 6A. FIG. 7 is a perspective view of the lower surface side of the outer roof 200 looking up from the lower left front, showing the left half in general.

  As shown in FIG. 4, the right convex portion 100R is a surface below the parting line 210PL generated along the dividing surface of the molding die, and the descending slope is started in the right projecting portion inclined surface 210Rc. In the vicinity of the outer edge portion 210Ld, it is formed in a continuous bank shape corresponding to the width in the front-rear direction of the right window of the cabin 20, that is, the right door glass 16R and the right window glass 15R.

  Further, the cross-sectional shape of the right convex portion 100R is an inverted triangular shape protruding downward, and the tip portion of the inverted triangle, that is, the lower end portion 100Rd of the right convex portion 100R is the front end portion 100Rf of the right convex portion 100R (FIG. 5). (See) to the rear end portion 100Rb.

  In FIG. 4, in order to clearly show this downward slope, the downward protrusion length 100Ha of the rear end portion 100Rb of the right convex portion 100R is the downward protrusion length in the vicinity of the cross section 100S of the right convex portion 100R. It is drawn to be larger than 100Hb.

  The rear end portion 100Rb of the right convex portion 100R has an outer front end attached to the vicinity of the upper end of the right rear column member 20b among the column members 20a to 20d arranged in the vertical direction at the four corners of the cabin 20. It extends to the upper side of the V-shaped hook 40 protruding to the outside of the ceiling portion 13 (see FIGS. 5 and 6). A V-shaped hook 40 similar to this is also attached near the upper end of the left rear column member 20c. Further, the V-shaped hook 40 has a shape in which a plate-like member is bent in a V shape, with the V-shaped open portion facing upward and the V-shaped closed portion facing downward. The left and right support members 20b and 20c are fixed.

  These V-shaped hooks 40 are used when the cabin 20 is lifted in the assembly process when the tractor 10 is manufactured. This point will be further described later.

  According to the above configuration, the rainwater that has flowed from the upper surface of the outer roof 200 to the right lower surface side does not flow along the right projecting portion inclined surface 210Rc, and the bank-like shape provided in the vicinity of the outer edge portion 210Rd where the downward slope is started. After damming once in the right convex portion 100R, the rainwater is guided backward along the gradient formed from the front end portion 100Rf to the rear end portion 100Rb of the right convex portion 100R. Then, it falls from the rear end portion 100Rb, is received by the V-shaped hook 40 projecting obliquely rearward to the right, and reliably drops on the rear wheel 3R side located away from the right door glass 16R and the right window glass 15R.

  Similarly to the above, the outer edge portion 210Ld where the downward slope is started without the rainwater flowing down from the upper surface of the outer roof 200 to the lower left side flows down along the left projecting portion inclined surface 210Lc (see FIG. 7). After being dammed once in the bank-like left convex portion 100L provided in the vicinity, the rainwater is rearward along the gradient formed from the front end portion 100Lf to the rear end portion 100Lb of the left convex portion 100L. Finally, the rear wheel 3L that is positioned away from the left door glass 16L and the left window glass 15L is received by the V-shaped hook 40 that falls from the rear end portion 100Lb and protrudes obliquely rearward to the left. Drip securely to the side.

  As a result, rainwater that has flowed down from the upper surface of the outer roof 200 of the cabin 20 to the left and right lower surfaces falls to the rear side of the vehicle body through the left convex portion 100L and the right convex portion 100R provided on the left and right sides. Adhesion to the glass on the left and right sides of the cabin 20 can be reduced. Moreover, when the left and right doors and windows are opened, it is possible to reduce the rainwater dripping into the cabin of the cabin 20.

  In the above embodiment, the left convex portion 100L and the right convex portion 100R provided on the left and right sides are the vicinity of the outer edge portion 210Ld where the downward slope of the left projecting portion inclined surface 210Lc is started, and the right projecting portion inclined surface. Although the configuration provided in the vicinity of the outer edge portion 210Rd where the downward slope of 210Rc is started has been described, the present invention is not limited to this, and for example, as shown in FIG. If it is sufficiently secured, the second right protrusion 100R ′ may be provided at the inclination end position 210Rc1 (see FIG. 8) where the downward inclination of the right overhanging inclined surface 210Rc ends. At this time, since the downward protrusion height of the second right convex portion 100R ′ is sufficiently ensured, the rain water flowing down the right protruding portion inclined surface 210Rc becomes the second right convex portion with the downward flow. The rainwater is not dropped on the window glass side over the lower end of the portion 100R ′. The same can be said for the left convex portion. FIG. 8 is a diagram corresponding to FIG. 3 of the above-described embodiment for explaining the formation position of the second right-side convex portion 100R ′.

  Next, a pair of left and right rear reflectors 451L and 451R will be described with reference to FIG.

  FIG. 9 is a schematic perspective view showing the lower part of the rear end of the cabin 20 of the tractor 10 of the present embodiment.

  As shown in FIG. 9, the pair of left and right rear mount portions 460L and 460R of the cabin 20 are provided with a pair of left and right plates 450L and 450R that also serve as reinforcement, and a pair of left and right rear reflectors 451L and 451R are installed in a part thereof. .

  Thereby, the strength improvement of the rear mount parts 460L and 460R and the attachment positions of the rear reflectors 451L and 451R can be secured.

  Next, the installation of work lights and license plate stays will be described with reference to FIGS.

  FIG. 10 is a perspective view in which the back surface of the tractor 10 is viewed obliquely upward from below.

  As shown in FIG. 10, an air conditioner unit 30 is mounted behind the ceiling portion 13, and protrudes rearward from the rear end of the upper surface side outer roof 200 a of the outer roof 200 so as to cover the air conditioner unit 30 from above. The outer roof side air conditioner cover part 200a1 is formed (see FIG. 2), and the inner roof side air conditioner cover protrudes rearward at the rear end part of the inner roof 300 so as to cover the air conditioner unit 30 from below. A portion 300a1 is formed.

  Thereby, the dead space behind the ceiling part 13 can be used effectively.

  Also, below the outer roof side air conditioner cover part 200a1 and on the left and right sides of the inner roof side air conditioner cover part 300a1 (see FIG. 10), that is, the outer roof side air conditioner cover part 200a1 and the inner roof side air conditioner cover. Four work lamps 470 are disposed rearwardly (see FIG. 10) at positions that do not protrude rearward from the rearmost line 200BL (see FIG. 2) of the portion 300a1.

  Thereby, the irradiation range of the back by the work lamp 470 is expanded.

  A license plate fixing stay 480 is installed at the center of the rear part of the inner roof side air conditioner cover 300a1.

  Thereby, the number plate 481 can be installed in a place where it can be easily seen.

  Next, the attachment position of the number plate 481 and the like will be further described with reference to FIGS.

  FIG. 11 is a schematic view of the cabin 20 of the tractor 10 as viewed from the rear, and FIG. 12 is a left side view of the cabin 20.

  The number plate 481 is arranged so that the upper end portion of the number plate 481 is positioned below the upper surface of the outer roof side air conditioner cover portion 200a1.

  The number plate 490 for illuminating the number plate 481 from the lower rear side is attached to the number plate fixing stay 480.

  Thereby, the number plate 481 can be attached to a position with good visibility.

  Next, a hanging hook for hanging the cabin 20 using the cabin hanging jig 25 in the manufacturing process of the tractor 10 will be described with reference to FIG.

  FIG. 13 is a perspective view showing a state in which the cabin 20 is suspended using the cabin suspension jig 25 in the manufacturing process of the tractor 10.

  As shown in FIG. 13, brackets 45 for attaching the pair of left and right side mirrors 18 are attached to the upper end portions of the column members 20 a and 20 d on the left and right front sides of the cabin 20.

  Further, in the present embodiment, as described above, in the assembly process at the time of manufacturing the tractor 10, the hook used when lifting the cabin 20 is bent into a V shape instead of a simple plate shape, thereby increasing the strength. Is planned.

  Accordingly, as shown in FIG. 13, the hooks are deformed when the cabin 20 is lifted in the assembly process at the time of manufacturing the tractor 10 using the pair of left and right brackets 45 and the pair of left and right V-shaped hooks 40. It can be prevented.

  In the above embodiment, the right convex portion 100R is formed corresponding to the width in the front-rear direction of the right door glass 16R and the right window glass 15R of the cabin 20, and the left convex portion 100L is the left door glass of the cabin 20. Although the structure formed corresponding to the width | variety of the front-back direction of 16L and the left window glass 15L was demonstrated, it is not restricted to this, For example, the right convex part 100R is the front-and-back front glass 16R of the cabin 20, and the right window glass 15R. The left convex portion 100L may be formed in a bank shape with a width shorter than the front-rear width of the left door glass 16L and the left window glass 15L of the cabin 20. Or the right convex portion 100R is formed in a bank shape with a width shorter than the width in the front-rear direction of the right door glass 16R and the right window glass 15R of the cabin 20, and , Left bent portion 100L may be formed in a bank shape at a width shorter than the longitudinal width of the left door glass 16L and the left window glass 15L of the cabin 20.

  In the above embodiment, the lower end portion 100Rd of the right convex portion 100R has a downward slope from the front end portion 100Rf (see FIG. 5) of the right convex portion 100R toward the rear end portion 100Rb, and the left side portion The lower end portion of the convex portion 100L has been described as having a downward slope from the front end portion 100Lf (see FIG. 7) of the left convex portion 100L toward the rear end portion 100Lb. The lower end portion 100Rd of the portion 100R is horizontal from the front end portion 100Rf (see FIG. 5) of the right convex portion 100R to the rear end portion 100Rb, or the lower end portion of the left convex portion 100L is the front end portion of the left convex portion 100L. It may be horizontal from 100Lf (see FIG. 7) to the rear end portion 100Lb, and both the left and right convex portions may be horizontal.

  Moreover, although the said embodiment demonstrated the case where the outer roof 200 was a double structure which has the hollow part 200b inside, it is not restricted to this, For example, it is a plate-shaped structure which does not have a hollow part inside. There may be.

  In the above-described embodiment, the tractor is described as an example of the traveling vehicle. However, the present invention is not limited to this. For example, the traveling vehicle is not limited to the tractor as long as the traveling vehicle is provided with a cabin. .

  According to the cabin of the traveling vehicle of the present invention, even if the lower surface of the roof is an inclined surface, the effect of preventing rain water from adhering to the window glass is exerted, and the roof constituting the ceiling portion of the cabin of the traveling vehicle such as a tractor Useful as.

DESCRIPTION OF SYMBOLS 1 Bonnet 2 Mission case 3R, 3R A pair of left and right rear wheels 3F, 3F A pair of left and right front wheels 4 Battery 7 Engine 13 Ceiling part 20 Cabin 30 Air conditioner unit 100L Left convex part 100R Right convex part 100Rd Lower right convex part 200 Outer roof 210R Right projecting part 210Rc Right projecting part inclined surface 210Rd Outer edge part 300 Inner roof

Claims (5)

A roof that forms a ceiling of a cabin of a traveling vehicle,
A projecting portion projecting outward in the left-right direction from the left and right windows of the cabin;
The underside of the overhanging part is
An inclined surface that forms a downward slope from the outer edge side of the overhang portion toward the window side;
A bank-like convex portion protruding downward from the inclined surface,
A roof characterized by that.   2. The roof according to claim 1, wherein the convex portion is formed on the outer edge portion side where the descending slope is started in the inclined surface.   The roof according to claim 1, wherein the convex portion is formed across the front-rear direction of the window of the cabin.   The rear end portion of the convex portion is formed up to a position above a V-shaped hook formed on a rear strut member among strut members arranged vertically in the four corners of the cabin. The roof according to claim 3.   The roof according to claim 3 or 4, wherein a lower end portion of the convex portion has a downward slope from the front side toward the rear side.

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