JP2005314052A - Rain water treatment device of head guard for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rain water treatment device of a head guard for a vehicle capable of preventing obstruction of an upper field of vision by structuring itself to drain rain water left and right in the front of the vehicle by a slight curve provided on an upper surface of a head guard sheet. <P>SOLUTION: This rain water treatment device of the head guard for the vehicle has a structure to drain the rain water left and right in the front of the vehicle by providing the slight curve on the upper surface of the head guard sheet 20 installed on the head guard 2, and the curve of the head guard sheet 20 is constituted to be curved and formed so that a central part in the left and right direction seen from a front surface of the head guard becomes convex upward as it is inclined toward left and right corners in the front from the rear of the vehicle. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a rainwater treatment apparatus for a vehicle head guard that is mounted on a head guard portion provided to protect a driver's seat in an industrial vehicle such as a forklift or a construction vehicle.

  In general, industrial vehicles such as forklifts are equipped with a head guard above the driver's seat to protect the driver from falling objects from the fork, etc. It is formed so that it can be seen. For this reason, head guards that are entirely formed in a lattice shape or those that have a plurality of openings on a flat plate are adopted, and the top guard is covered with a head guard sheet for preventing rain. ing. However, when a sudden operation is performed during forklift operation, rainwater collected in the head guard seat moves vigorously, so that it may fall to the front of the driver's seat and hit the driver.

As such a rainwater scattering prevention device for the head guard, for example, a technique as disclosed in Patent Document 1 has been proposed.
As shown in FIG. 8, the head guard 60 includes a head guard roof portion 61, four head guard columns 62 that support the head guard roof portion 61, and a head guard sheet (not shown) attached to the upper surface of the head guard roof portion 61. It is configured.
In this device, since the head guard roof 61 is inclined from the E part toward the front side of the vehicle body (the right side of the drawing in FIG. 8), the rainwater is transmitted along this inclination and is installed on the front side of the vehicle body. It moves toward the ridge 63 and is discharged out of the vehicle through the drainage groove 64.

As another conventional technique, Patent Document 2 proposes a device that prevents rainwater from accumulating on an upper portion of the head guard by attaching an upward spherical head guard cover to the upper portion of the head guard.
Japanese Patent Laid-Open No. 08-127499 Japanese Utility Model Publication No. 07-28194

However, in the technique disclosed in Patent Document 1, the upper field of view is obstructed by the rain gutter 63 and rainwater staying there, which adversely affects the cargo handling operation.
In the technique disclosed in Patent Document 2, distortion occurs in the entire upper field of view due to the dome shape, and it is difficult for the driver to grasp an accurate distance in the cargo handling operation. Furthermore, the shape is complicated and a dedicated mounting tool is required.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a structure that drains rain water to the front left and right of the vehicle by a slight curve provided on the upper surface of the head guard sheet. An object of the present invention is to provide a rainwater treatment apparatus for a vehicle head guard whose visibility is not obstructed.

In order to achieve the above object, an invention according to claim 1 is directed to a vehicle head guard having a structure in which a slight curve is provided on the upper surface of a head guard seat attached to the head guard and drains rain water to the front left and right of the vehicle. In the rainwater treatment apparatus, the head guard seat is curved so that a central portion in the left-right direction is convex upward as seen from the front of the head guard while inclining toward the left and right front corners from the rear of the vehicle. It is characterized by being.
According to the first aspect of the present invention, since the rainwater that has fallen is quickly distributed to the front left and right by the curvature of the upper surface of the head guard sheet, the rainwater falls and does not fall on the driver's seat. In addition, since the upper field of view is not obstructed by the accumulated rainwater, the driver can perform a cargo handling operation based on accurate information. (Note that the longitudinal direction of the vehicle is the longitudinal direction of the head guard, and the direction perpendicular thereto is the lateral direction.)

The invention according to claim 2 is characterized in that drainage ports for draining rainwater are provided at the front left and right corners of the head guard sheet.
According to the second aspect of the present invention, the rain water concentrated in the front left and right directions is quickly drained through the drain port, and the same effect as in the first aspect can be obtained.

The invention according to claim 3 is a structure in which weirs are provided on the front and left and right sides of the head guard sheet, the front weirs are structured such that the height of both ends is increased and the height is lowered toward the center, The height of the front end increases and decreases toward the rear end. According to the invention of claim 3, the weir at the front portion of the head guard is higher in the height of the weir. Therefore, the upper field of view is improved and widened as compared with the conventional rain gutter type. Further, since the left and right weirs are structured such that the height of the weir increases from the rear end to the front end, the rainwater at the rear end portion moves quickly toward the front end portion. In addition, rainwater is blocked by the weirs provided on the front and left and right sides, and does not spill out of the head guard sheet.

According to a fourth aspect of the present invention, the portion of the head guard sheet that overlaps the lattice of the head guard is raised.
According to the fourth aspect of the present invention, since the raised portion is provided in the portion of the head guard sheet that overlaps with the lattice, the rigidity of the head guard sheet can be improved without obstructing the upper field of view.

  As described above in detail, according to the present invention, by providing a slight curve on the upper surface of the head guard sheet and draining rain water to the front left and right of the vehicle, it is possible to prevent rain water from falling into the driver's seat, Moreover, the head guard sheet | seat which does not obstruct an upper visual field is enabled.

(First embodiment)
Hereinafter, the first embodiment will be described with reference to FIGS.
FIG. 1 is a perspective view of a forklift that implements the present invention. A mast 11 is erected in front of a vehicle body 10, and a pair of forks 12 that move up and down along the mast 11 is installed. In addition, a driver's seat 13 is provided above the vehicle body 10 and the head guard 2 covers the top.

  The head guard 2 is fixed to the front pillars 4, 5 and the pair of left and right front pillars 4, 5 and the rear pillars 6, 7 fixed at the four corners of the vehicle body 10 so as to surround the driver's seat 13. A top plate 3 for covering the rear half, a lattice 8 fixed to the front pillars 4 and 5 extending in the front-rear direction, a head guard sheet 20 for covering the top plate 3 and the like. The front pillars 4 and 5 include support portions 4a and 5a that extend obliquely downward from the front end portion of the lattice 8 and a horizontal support portion that supports the top plate 3 and the lattice 8 and extends horizontally along the side. 4b and 5b are integrally molded as one member.

  FIG. 2 is an enlarged view of the head guard 2, and the front half of the head guard 2 is attached with a lattice 8 that is fitted with the head guard sheet 20 according to the present invention and is formed in a lattice shape. A top plate 3 is attached to the rear half, and both are fixed to the horizontal support portions 4b and 5b of the front pillars 4 and 5 by welding. A rear bar 14 is attached to the rear ends of the horizontal support portions 4 b and 5 b of the front pillars 4 and 5, and a rain gutter 15 is provided between the rear bar 14 and the rear end portion of the top plate 3. Since the front end of the top plate 3 is a weir, the rain water that has fallen on the top plate 3 naturally moves toward the rain gutter 15 and is drained.

  The head guard sheet 20 is made of a transparent resin material or glass material, and as shown in FIG. 3, the roof cover portion 21, the front weir 24 provided in the front, and the left portion provided on the left and right. It comprises a weir 22, a right part weir 23, etc., and drainage ports 25 and 26 are formed at the front left and right corners. In addition, partition plates 32 and 33 are attached to the front left and right corners by connecting the front dam 24 and the left and right dams 22 and 23 to prevent leakage of rainwater. (Note that FIG. 3 is a plan view of the head guard cover 20, showing the left-right direction and the front-rear direction perpendicular thereto as viewed from the front, with the lower direction in the drawing being the front direction. is there.)

  4 shows a cross-sectional view taken along line AA in FIG. 3, and FIG. 5 shows a cross-sectional view taken along line BB in FIG. The roof cover portion 21 has a curved shape in which a front center portion 21a in the left-right direction is convex upward, and both end portions 21e and 21f are lowered. Both end portions 21e and 21f have a shape inclined in the front-rear direction from the rear end toward the front end. Therefore, rainwater that has fallen on the roof cover portion 21 is collected at the front left and right corners 21c and 21d by the curved structure.

Among the weirs provided on the front and left and right, the front weir 24 has both ends at m <n, where n is the height of both ends and m is the height of the center as shown in FIG. The height of the section is increased, and the height of the weir is decreased as it is in the center. As a result, the field of view above the driver's seat 13 is narrowed by the area blocked by the front weir 24 and contributes to widening the field of view.
The left and right weirs 22 and 23 have a structure in which the height of the weir increases from the rear end to the front end, and the left and right weirs 22 and 23 are fitted to the front pillars 4b and 5b. Fitting portions 36 and 37 having a U-shaped cross section for fixing the position are formed.

Clips 27, 28, 29, 30, and 31 for attaching the head guard sheet 20 to the grid 8 are installed on the back surface of the head guard sheet 20, and are fitted into fitting holes (not shown) provided in the grid 8. Fixed.
When the head guard sheet 20 is attached to the head guard 2, first, the fitting portions 36 and 37 at both ends are fitted to the horizontal support portions 4b and 5b of the left and right front pillars 4 and 5, and alignment is performed. Then, the clips 27, 28, 29, 30, 31 are fixed by inserting and fitting into fitting holes (not shown) provided in the lattice 8.

Next, the operation of the head guard sheet 20 configured as described above will be described.
The rainwater that has poured onto the head guard sheet 20 immediately flows out in the direction of the front left and right of the vehicle due to the slight curvature of the upper surface. Since the head guard sheet 20 is curved upward and convex in the left-right direction and has a shape inclined toward the front left and right corners, the left part of the head guard sheet 20 as shown in FIG. The rainwater that falls on the water flows in the direction indicated by the arrow 34 and gathers at the drain outlet 25 at the front left corner. In addition, rainwater that falls on the right portion of the head guard sheet 20 flows in the direction indicated by the arrow 35 and collects at the drain outlet 26 at the front right corner.

It should be noted that rainwater is blocked by the weirs 24, 22, 23 and the partition plates 32, 33 provided on the front part and the left and right of the head guard sheet 20, and does not leak outside.
The rainwater collected at the drainage ports 25 and 26 passes through the drainage ports 25 and 26 and is immediately drained to the outside of the vehicle. It does not flow down toward the seat 13.
The slight curvature of the upper surface of the head guard sheet 20 is such that the upper field of view is not distorted.
In addition, the front weir 24 of the head guard seat 20 located above the driver's seat 13 has a lower central portion than the height of both ends, so the area that blocks the front upper view is narrow. The upper field of view is improved and widened as compared with the conventional rain gutter type.

The vehicle head guard rainwater treatment apparatus according to the first embodiment has the following effects.
(1) The rainwater that has fallen on the upper surface of the head guard seat is gathered quickly and drained to the right and left drainage outlets by the slight curvature provided on the upper surface of the head guard seat, so the accumulated rainwater will not hit the driver's seat. Moreover, the upper field of view is not obstructed by the rainwater that remains.
(2) The front dam of the head guard seat has a structure in which the height of the dam is lower at the center than at both ends, so the field of view above the driver's seat has a conventional rain gutter type or groove This is an improvement over the formula.
(3) When attaching the head guard sheet to the head guard, it is only necessary to fit the fitting parts at both ends to the front pillars, align the clips, and then insert and fix the clips in the holes in the lattice. Easy to do.
(4) Rainwater that falls on the head guard seat attached to the front half of the head guard is drained by being distributed to the front left and right, and rain water that falls on the top plate for the second half is Since it is collected and drained outside the vehicle, it will be well dispersed, and overflow due to concentration of rainwater in one place can be prevented.
(5) It is not necessary to modify the frame of the head guard, it is only necessary to provide a slight curve on the head guard sheet covering the top, and this can be easily implemented without requiring a significant structural change.

(Second Embodiment)
Next, a modified example of the rainwater treatment apparatus for a vehicle head guard according to the first embodiment will be described with reference to FIGS. 6 and 7.
The head guard sheet 40 according to the second embodiment is obtained by changing the shape of the roof cover portion 21 of the head guard sheet 20 described above.
Therefore, here, for convenience of explanation, a part of the reference numerals used in the previous explanation is used in common, the explanation of the common configuration is omitted, and only the changed part is explained.

  As shown in FIG. 6, the second embodiment is provided with swells (convex portions) 41a, 41b, 41c where the roof cover portion 41 overlaps the lattice 8, and is intended to increase the rigidity of the head guard sheet. It is a thing. The convex portion is formed in parallel with the front-rear direction of the head guard sheet 40.

The convex portion 41 b is formed through in the front-rear direction, but the convex portions 41 a and 41 c have opening regions 41 d and 41 e between which the convex portion is not formed with the front weir 24. This is to improve drainage.
FIG. 7 is a cross-sectional view taken along the line C-C of FIG. 6, wherein the convex portion is U-shaped and has a raised shape, and the width dimension x of the convex portion is a lattice overlapping therewith. When the width dimension of 8 is y, x≈y is set. This is because the visual field above the driver's seat 13 is not obstructed. Further, the height of the convex portion is set to an arbitrary height within a range that does not obstruct the upper visual field.

Rainwater that has poured onto the head guard sheet 40 configured as described above immediately flows out in the left and right front direction of the vehicle due to slight curvature of the upper surface, but the convex portions 41a and 41b provided on the head guard sheet 40. 41c, part of the rainwater is guided and moved along it.
As shown by the arrows in FIG. 6, the rainwater that has fallen on the left portion of the head guard sheet 40 flows in the direction indicated by the arrow 42 b and is guided by the convex portion 41 a to move to the vicinity of the front weir 24, and the direction indicated by the arrow 42 c. To the drain outlet 25 at the left front corner. Further, the flow in the direction indicated by the arrow 42a is collected at the drain port 25 at the front left corner as it is.

  On the other hand, rainwater that has fallen on the right portion of the head guard sheet 40 flows in the direction indicated by the arrow 43b and is guided by the convex portion 41c to move to the vicinity of the front weir 24, flows in the direction indicated by the arrow 43c, and flows at the front right corner. Collect at the drain 26. Further, the flow in the direction indicated by the arrow 43a is collected at the drain outlet 26 at the front right corner as it is.

The rainwater collected at the drainage ports 25 and 26 passes through the drainage ports 25 and 26 and is immediately drained to the outside of the vehicle. For example, rainwater collected in the head guard seat 20 is driven when the vehicle starts suddenly or turns. It does not flow down toward the seat 13.
In addition, the swells (convex portions) 41a, 41b, 41c provided on the head guard sheet 40 are provided at locations overlapping the grid 8, so that the visual field above the driver is not obstructed.

The vehicle head guard rainwater treatment apparatus according to the second embodiment has the following effects.
Of the effects of the first embodiment, (1) to (4) are common and other effects will be described.
(1) By providing a raised portion on the portion of the head guard sheet that overlaps the grid, the rigidity of the entire head guard sheet can be increased, and the driver's field of view is not hindered.

The present invention is not limited to the first and second embodiments described above, and various modifications are possible within the scope of the gist of the invention. For example, the following modifications may be made.
In the first embodiment, the rear half of the head guard portion is the top plate and the front half is the head guard sheet of the present invention. However, the entire head guard portion may be a head guard sheet. In this case, the entire head guard portion is covered with the transparent member, and the field of view above the driver is further improved. Further, it is not necessary to configure the front and rear of the head guard with separate parts, and the number of parts can be reduced.
○ In the first embodiment, rainwater drainage is drained directly outside the vehicle from drainage ports provided on the front left and right sides of the head guard seat. Also good. Alternatively, guide grooves may be provided in the left and right front pillar portions, and rainwater may be drained along the guide grooves. This prevents scattering when rainwater falls.
○ In the first embodiment, the head guard sheet is fixed to the head guard by attaching a clip to the head guard sheet and fitting into the head guard grid. Also good.
In the second embodiment, the portion that overlaps with the grating is raised to increase the rigidity. However, the grating may be formed in a radial shape and the raised portion may be provided. In this case, as the rigidity of the sheet is improved, the radial raised portion serves as a water channel for guiding rainwater, and drainage is further improved.
In the second embodiment, the bulge provided on the head guard sheet is a convex shape above the U-shaped cross section, but is not limited to this shape, and the cross-sectional shape is an inverted V shape. The shape may be convex upward, or may be an inverted U shape and convex upward. Furthermore, a rib shape protruding upward may be used. By adopting such a shape, the rigidity of the sheet can be increased and the thickness of the sheet to be used can be reduced.
In the second embodiment, the head guard sheet is provided with a raised portion to increase the rigidity. However, another member may be attached to this part to increase the rigidity.

Here, although not described in the claims, technical matters related to the present invention will be described just in case.
As a first technical matter, in the rainwater treatment apparatus for a vehicle headguard according to any one of claims 1 to 4, the headguard sheet is made of a transparent resin.
In this case, since the driver is not obstructed by the head guard, the driver can perform the cargo handling work based on accurate information.

1 is an overall perspective view showing an outline of a forklift according to a first embodiment. It is a perspective view which shows the head guard concerning 1st Embodiment. It is a top view of the head guard sheet concerning a 1st embodiment. FIG. 4 is a sectional view taken along line AA in FIG. 3. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is a top view of the head guard sheet concerning a 2nd embodiment. It is CC sectional view taken on the line of FIG. It is a perspective view which shows the outline | summary of the conventional head guard.

Explanation of symbols

2 Head guard 3 Top plate 4, 5 Front pillar 6, 7 Rear pillar
8 Lattice 20, 40 Head guard sheet 21 Roof cover 22, 23 Left and right weir 24 Front weir 25, 26 Drainage port

Claims (4)

A rainwater treatment device for a headguard for a vehicle having a structure in which a slight curve is provided on an upper surface of a headguard seat attached to the headguard and drains rainwater to the left and right of the front of the vehicle. A rainwater treatment apparatus for a vehicle headguard, wherein the rainwater treatment apparatus is curved so that a central portion in the left-right direction is convex upward as viewed from the front of the head guard while being inclined toward the left and right front corners. The rainwater treatment device for a vehicle headguard according to claim 1, wherein drainage ports for draining rainwater are provided at the front left and right corners of the headguard sheet. Weirs are provided on the front and left and right sides of the head guard sheet, the front weirs are configured to increase the height of both ends and decrease toward the center, the left and right weirs increase the height of the front end, 3. The rainwater treatment apparatus for a vehicle head guard according to claim 1, wherein the rainwater treatment apparatus has a structure that becomes lower toward a rear end. The rainwater treatment apparatus for a head guard for a vehicle according to any one of claims 1 to 3, wherein a portion of the head guard sheet that overlaps the lattice of the head guard is raised.

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