JPH068856A - Under cover installation structure for industrial vehicle - Google Patents

Abstract

PURPOSE:To improve the assembly performance of an under cover which is installed so as to cover the lower part between the left and right side frames. CONSTITUTION:A supporting pin 2 is installed on the front side of the lower part inside surfaces of the left and right side frames 1, and a bracket 3 is installed on the rear side. On the front side upper surface of an under cover 5, left and right hooks 6 in pair which can be hooked with the supporting pin 2 are installed, and on the rear side upper surface, the left and right brackets 7 in pair are installed, and the bracket 7 can be fixed by a bolt 9 or s stopper pin. Accordingly, when the under cover 6 is installed for the side frame 1, the under cover 5 is positioned by the hooking of the hook 6 for the supporting pin 2, and the weight charge for an operator can be lightened, and the fixation of the bracket 7 on the cover side for the bracket 7 on the frame side is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for an undercover used in an industrial vehicle such as a forklift.

[0002]

2. Description of the Related Art In a conventional industrial vehicle, as shown in FIGS. 9 and 10, the space between the left and right side frames 31 facing each other at a predetermined interval is installed in a frame space (engine room). An under cover 33 is attached for the purpose of protecting the torque converter 32, the engine (not shown) and the like from obstacles during traveling. By the way, the attachment of the under cover 33 to the side frame 31 is usually a detachable structure in consideration of service work during maintenance. In the conventional under cover mounting structure, the L-shaped bracket 34 is fixed to the lower side of the side frame 31 by the bolt 35, and the bracket 36 is provided on the upper surface of the under cover 33 corresponding to this. It is known that the cover side bracket 36 is fastened to the frame side bracket 34 by a bolt 38 inserted from a work hole 37 provided in the frame 33. In the figure, reference numeral 39 denotes a working hole provided in the under cover 33 for operating the drain plug of the torque converter 32.

[0003]

However, in the above-described conventional under cover mounting structure, the under cover 33 is used.
Since the structure in which the bolts 38 are inserted from the working holes 37 and the brackets 34 and 36 are fastened to each other in a state in which the brackets are supported horizontally, alignment of the bolt holes of both brackets 34 and 36 is extremely troublesome and time-consuming. However, there is a problem that the assembling property (detachability) is poor, and since the undercover itself is a heavy object, the burden on the worker is large.

In view of the above-mentioned problems, the present invention provides an undercover mounting structure having a good assembling property.
It is a technical issue to be solved.

[0005]

In order to solve the above problems, the present invention is configured as follows. That is, in order to cover the lower part between the left and right side frames that face each other at a predetermined interval, the under frame is detachably attached to the side frame, and the side frame is provided on the front upper surface of the under cover. A pair of left and right hooking members that can be engaged with and disengaged from the hooking tool provided on the lower inner surface of the side cover are provided, while a bracket is provided on the rear upper surface of the under cover, and the bracket is provided on the lower inner surface of the side frame. It is characterized in that it is detachably fixed to the bracket from the lateral direction via a fixture.

[0006]

In the undercover mounting structure of the present invention constructed as described above, when the undercover is mounted on the side frame, first, the left and right hooking members provided on the front upper surface of the undercover are hooked on the side frame. Hang on each ingredient. As a result, at least the positioning of the undercover in the front-rear direction with respect to the side frame is performed, and the weight of the front side of the undercover can be supported. Then, after that, the bracket on the cover side is fixed to the bracket on the side frame by the fixing tool. In this case, since the front side of the under cover is positioned and supported as described above, the fixing work by the fixing tool is performed by the bolt. Whether it is a fastening method or a pull-out method using a stopper pin, it can be easily performed regardless of the type. Although the removal of the under cover is performed in the reverse order of the above, the removal can be easily performed as in the case of mounting.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. First, the first embodiment will be described with reference to FIGS. As shown in the figure, support pins 2 as support shaft members are horizontally fixed by projecting to the lower inner surfaces on the front sides of the left and right side frames 1 facing each other at a predetermined interval, and also on the rear side. A bracket 3 having a substantially U-shaped plane is fixed to each of the inner surfaces of the lower portion by welding, and a weld nut 4 (or a tap hole) is attached to the bracket 3.
Is provided.

On the other hand, in order to protect the power unit such as the torque converter 20 and the engine (not shown) shown in FIG. 3 arranged in the space between the side frames 1, an under cover is attached so as to cover the lower part between the frames. The reference numeral 5 is formed in a substantially rectangular shape having an upward warped portion at the center of the front and rear terminals. Further, near the left and right ends of the front side upper surface of the under cover 5, there are provided substantially inverted L-shaped hooks 6 as a pair of left and right hooking members that can be hooked on the support pins 2 of the side frame 1. Is set such that the front side is the opening side and the protruding height is set so as to maintain a space corresponding to the outer diameter of the support pin 2 with the upper surface of the undercover 5, and thus the support pin 2 Occurrence of rattling is suppressed when it is hooked on.

Further, a pair of left and right brackets 7 having bolt insertion holes 8 corresponding to the brackets 3 on the frame side are provided near the left and right ends of the rear upper surface of the under cover 5, and the brackets 7 are fixed. Bolt as a tool 9
Due to this, the structure is fastened to the bracket 3 on the frame side. The hole 10 provided at the center of the under cover 5 is a working hole for operating the drain plug of the torque converter 20.

The present embodiment is constructed as described above, and the undercover 5 is attached to the side frame 1 by the following procedure. That is, in a state where the under cover 5 is lifted up substantially horizontally, first, the left and right hooks 6 are engaged with the support pins 2 of the side frame 1 from the rear of the vehicle and hooked. Next, the bolt 7 is fixed by laterally inserting the bolt 9 into the bolt insertion hole 8 of the cover-side bracket 7 and screwing the bolt 9 into the weld nut 4 of the frame-side bracket 3.

In this case, as shown in FIG. 2, if the support pin 2 is hooked so that the support pin 2 is located at the innermost portion of the hook 6, this allows the undercover 5 to the side frame 1.
Since the front and rear positions of the under cover 5 are determined and the front weight of the under cover 5 is supported by the support pins 2 to reduce the burden on the operator, the position of the bracket 3 on the cover side with respect to the bracket 7 on the frame side and the bolt 9 can be reduced. It is possible to easily perform the tightening work by. Further, during service work of the engine and the like, the removal of the under cover 5 which is carried out as necessary can be easily carried out by a procedure reverse to that at the time of assembling. As described above, according to the mounting structure of the present embodiment, it is possible to improve the assembling property of the under cover 5 and to significantly reduce the burden on the operator during the assembling work and to shorten the assembling time. It will be possible.

Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the fixing structure on the rear side of the under cover 5 is changed from the bolt fixing type of the first embodiment described above to the fixing type using a pin, and the hooking structure by the hook 6 on the front side is the same as the above-mentioned embodiment. It is configured in the same manner as 1. That is, the bracket 3 fixed to the frame side is formed in a U shape having concentric pin holes 3a in the opposing flange portions, and the pin holes 7 are formed in the bracket 3.
With the cover-side bracket 7 having "a" fitted from below, the stopper pin 11 is laterally inserted into the pin holes 3a, 7a of both brackets 3, 7 and removed by the clip pin 13 via the flat washer 12. It has a structure to stop it.

Therefore, according to the second embodiment, the first embodiment
In the same manner as in the above case, after the hook 6 is hooked to the support pin 2, the cover side bracket 7 can be fixed to the frame side bracket 3 by the stopper pin 11, and the under cover 5 is assembled. In addition to having the same characteristic as that of the first embodiment that can improve the property, there is an advantage that the under cover 5 can be attached and detached without using a tool.

Next, a third embodiment of the present invention will be described with reference to FIGS.
It will be described based on. In this embodiment, the fixed type by the stopper pin 11 is further modified so that the cover side bracket 7 can be attached / detached while the stopper pin 11 is still attached to the frame side bracket 3. The hooking structure by the hook 6 on the front side is the same as that of the first embodiment.

That is, the bracket 3 on the frame side is 3
The stopper pin 11 is formed in a substantially E shape having one flange, and the stopper pin 11 is attached to the pin hole formed in each flange in a lateral direction so as to be removable. Then, FIG. 7 shows a mounting state of the bracket 7 on the cover side. The stopper pin 11 is inserted to the innermost part by fitting the engagement pin 14 radially protruding from the head portion 11a thereof into the groove 16 of the grooved guide 15 provided on the bracket 3 on the frame side, and is covered. The side bracket 7 is fixed. This state is held by a spring 17 that urges the stopper pin 11 in the inserting direction to prevent accidental removal due to vibration during traveling. In the figure, 18 is a spring receiver and 19 is a retaining pin thereof.

FIG. 8 shows the cover side bracket 7 removed. The stopper pin 11 is pulled out to a position where the engagement pin 14 is disengaged from the groove 16 of the guide 15, and is rotated by an appropriate angle to cause the engagement pin 14 to rotate.
It is adapted to be held in the withdrawal position by hooking the end face of the guide 15.

Therefore, the third embodiment configured as described above
In this case, the cover side bracket 7 can be attached / detached while the stopper pin 11 is still attached to the frame side bracket 3, and the same effects as those of the above-described first and second embodiments can be obtained. In addition, there is an advantage that the work of attaching and detaching the under cover 5 by the stopper pin 11 can be facilitated.

Regarding the hooking method of the hook 6 and the support pin 2 which is the front mounting structure of the under cover 5, even if the support pin 2 is set on the under cover 5 side and the hook 6 is set on the side frame 1 side. It doesn't matter.

[0019]

As described in detail above, according to the present invention,
Since the front side of the undercover is hooked and the rear side is fixed with bolts and stopper pins, the ease of assembling the undercover to the side frame can be improved. That is, the removal work of the under cover can be facilitated during the service work of the engine and the like, and the removal work with safety and high efficiency is realized.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an under cover mounting structure according to a first embodiment of the present invention.

FIG. 2 is a side view of an assembled state of the under cover mounting structure.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is an exploded perspective view of an under cover mounting structure according to a second embodiment of the present invention.

FIG. 5 is a side view of an assembled state of the under cover mounting structure.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is an explanatory view of a main part of an undercover mounting structure according to a third embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a stopper pin withdrawn state in the same manner.

FIG. 9 is an exploded perspective view showing an example of a conventional under cover mounting structure.

FIG. 10 is a front view of a conventional example seen from the rear of the vehicle.

[Explanation of symbols]

1 ... Side frame 2 ... Support pin 3 ... Frame side bracket 5 ... Under cover 6 ... Hook 7 ... Cover side bracket 9 ... Bolt 11 ... Stopper pin

Claims (1)

[Claims] 1. A mounting structure for an undercover which is detachably mounted on the side frames to cover a lower part between the left and right side frames facing each other at a predetermined interval. While a pair of left and right hooking members that can be engaged and disengaged with a hooking tool provided on the lower inner surface of the side frame is provided, a bracket is provided on the rear upper surface of the undercover, and the bracket is attached to the lower inner surface of the side frame. An undercover mounting structure for industrial vehicles that is detachably fixed to the bracket provided on the side of the bracket via a fixture.