JPH0411583A - Front grill attachment/detaching device for mobile vehicles - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a front grill attachment/detaching device for a mobile vehicle.

[Prior Art] Many conventional front grills are fixed to the support frame using screws, one-touch fittings, or the like.

After that, a detachable device disclosed in Japanese Utility Model Application Publication No. 57-120170 appeared.

[Problems to be Solved by the Invention] However, the attachment/detachment device disclosed in Japanese Utility Model Application Publication No. 57-120170 is such that when a load in the forward detachment direction is applied to the front grill due to vibrations of the aircraft while the vehicle is running, the tip of the hook may It escapes laterally around the swinging wheel, causing the front grill to come off automatically.

[Means for Solving the Problems] The present invention aims to solve the problems of conventional devices, and takes the following technical measures. That is, the engine 2 is installed in front of the machine frame 1, the upper part of the engine 2 is covered with a bonnet 3, the left and right sides are covered with side covers 4, and the front end openings of the bonnet 3 and side covers 4 are used as a front grill. 5, the front end of the bonnet 3 is equipped with a moving shaft 6 that expands and contracts in the inward and outward directions and a hook 7 that swings in the inward and outward directions, and a locking tool 8 that is connected to the hook 7 and corresponds to #1 release. , is attached to the upper part of the front grill 5, and the hook 7 is pivotally attached to the support frame 11 around the swing shaft 9 of the hook 7 through the elongated hole 1o in the longitudinal direction, and the locking tool 8 is attached to the bonnet 3 side. Attracting spring 1
2.13 is configured as a front grill attachment/detaching device for a moving vehicle, characterized in that it is attached to the bonnet 3 side.

[Effects of the Invention] The present invention has the following technical effects due to the above-described configuration. That is, when a load in the forward separation direction is applied to the upper part of the front grille 5 due to vibrations of the aircraft while driving,
A forward load is applied to the tip of the hook through the locking tool 8, but at this time, the hook 7 moves forward along the elongated hole 10, so the hook 7 swings in the direction of swing around the swing shaft 9. It will not escape and the front grill 5 will not come off automatically.

[Examples] Examples of the present invention will be described in detail below with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the component parts described in this example are not intended to limit the scope of this invention to only those, unless there is a specific description. , is merely an illustrative example.

The rotation is an agricultural tractor 14 incorporating this invention.

The agricultural tractor 14 has front and rear wheels 1 at the front and rear four corners of the machine body.
5.16 and runs with rear two-wheel drive or four-wheel drive.

The front and rear wheels 15 and 16 are connected by machine frame 1, and this machine frame 1
The engine 2 is attached to the front part, and its driving force is transmitted to the rear axle 16 or the front and rear axles 15, 16 (not shown).

A seat 17 is provided above the left and right rear axles 16, 16, and a driver's seat is configured by a steering handle 18, an instrument panel 19, levers, pedals, and other operating tools (not shown) in front of the seat 17. It is surrounded by cabins 20.

The upper part of the engine 2 in the machine frame 1 above the front wheels 15.15 is covered with a substantially flat bonnet 3, and the left and right sides of the engine 2 are covered with side covers 4, respectively. ing.

The bonnet 3 is firmly attached to the internal frame that is integrated with the machine frame 1 with fixing devices such as screws or bolts (not shown) and is normally not removed, and the side cover 4 is attached via one-touch fittings (not shown). It is removably attached to the internal frame.

Inside the front end of the bonnet 3, as shown in FIG.
A support frame 11 made of sheet metal is attached along the extension direction of the ceiling surface.

The supporting frame 11 has an vertical surface 2 whose tip is bent downward.
1, and a portion of this vertical surface 21 extends to the inside of the front grille 5.

A hole 22 for inserting the moving shaft 6 is opened at the rear of the support frame 11, and the moving shaft 6 is attached from the outside of the bonnet 3 so as to be freely extendable and retractable.

The outer end of the moving shaft 6 is a handle 23 that is long in the front-rear direction,
The inner end is a threaded portion 24 for attaching a nut.

A threaded hole portion of a bottom plate 25 of a pressing tool 28 having a generally "T" shape when viewed from the side is attached to the threaded portion 24 of the moving shaft 6, and is integrally fixed with a lock nut 29.

A collar 30 and a coil spring 13 are held on the outer periphery of the moving shaft 6 between the hole 22 of the support frame 11 and the bottom plate 25, and the pressing tool 2
8 is trying to push open the bottom plate 25 downward.

A front plate 26 is integrally attached to the front end of the bottom plate 25 with its lower side slightly protruding forward and inclined, and interlocking pins 27 and 27 for interlocking are provided at the middle lower part of the bottom plate 25 protruding from both sides. ing.

The suppressor 28 consists of the bottom plate 25, the front plate 26, and the interlocking pin 2.
7, and is assembled integrally with the handle 23.

Left and right vertical walls 31, 31, which are bent downward, are protruded from the middle of the support frame 11 to face each other.

These left and right standing walls 31, 31 have long holes 10, 10 in the front and rear direction.
is opened, and the swing shaft 9 is inserted into the elongated holes 10, 10,
The shaft ends 32, 32 of the swing shaft 10 largely protrude outward from the left and right vertical walls 31, 31, and the helical springs 12. 12 is crossed and pulls the swing shaft 10 rearward.

Right and left flat hooks 7.7 are arranged immediately inward of the left and right vertical walls 31, 31, and a pressing tool 28 is arranged inside the inner width of the hooks 7.7.

As shown in FIG. 1, the hook 7 has a hook at its tip,
A swing hole 34 for inserting the swing shaft 9 is provided at the intermediate portion in the front-rear direction, and an interlocking elongated hole 35 for inserting the interlocking pin 27 of the pressing tool 28 is provided at the rear.

That is, by moving the handle 23 upward, the interlocking pin 2 of the pressing tool 28
When the hook 7 is moved upward, the tip of the hook 7 is moved downward about the swing shaft 9 in the direction of arrow "A".

At this time, since the lower side of the front plate 26 is slightly inclined forward and attached to the front end of the bottom punching 25, as the front plate 26 moves upward, the swing shaft 9 simultaneously moves to the supporting frame 11. Since it is pressed along the elongated hole 10 and moves forward, the entire Fufu makes a complex movement in which the hook at the tip opens while moving forward in the direction of the arrow "r".

A locking tool 8 made of a round bar and having an rTJJ shape in plan view and provided inside the upper part of the front grille 5 is positioned at the tip of the hook 7 so as to be engageable or detachable.

The front grill 5 is a front cover, and covers the upper bonnet 3, the front edges 35, 36 of the left and right side covers 4.4, and the machine frame 1 portion below the front edges 35, 36.

As shown in Fig. 2, in this lower machine frame 1,
A fulcrum shaft 37.37 is provided protruding from both sides, and this fulcrum shaft 37
The front grille 5 is provided inside and lower on both the left and right sides of the front grille 5. Lower opening rJJ-shaped receivers 38, 38 support the lower part of the front grille 5 so as to be swingable back and forth.

The front grill 5 has a headlamp 39 at the front of the middle part in the upper direction.
．． 39 and an air intake 40, and normally,
It is made of synthetic resin.

As shown in FIGS. 1 and 3, several sub-ribs 41 are provided in the front and back directions on the inside of this ceiling part, with long ribs 41a, 41a on the outside, and short ribs 41b, 41b on the middle part. ,
,, the binding restricts the front and side surfaces of the front end elevation 21 of the support frame 11, that is, prevents the front grille 5 from shifting laterally.

In addition, left and right vertical walls 31, 31 that are bent downward are provided at the intermediate portion of the support frame 11 in the front and rear direction.
A swing shaft 9 is inserted and attached to one part, and a hook 7 is attached to this swing shaft 9.
A protrusion prevention wall 42, 42 is provided in one part to protrude downward.

This protrusion prevention wall 42 presses the upper surface of the locking tool 8 that integrally projects from the front grill 5 when the front grill 5 tries to move upward when driving on a rough road, thereby preventing the front grill 5 from coming off. To prevent.

Further, when the front end hook portion of the hook 7 is attracted in the direction of arrow “C” by the springs 12, 1.3 and is locked in the locking tool 8 as shown in FIG. 1, the swing shaft 9 and the front plate 26 The dimensions are such that a gap "S" is created between the front edge and the front edge.

In this way, before the swing shaft 9 and the front plate 26 come into contact, the hook portion of the hook 7 comes into contact with the locking tool 8 protruding from the front grill 5 side, so that the front grill 5 can be attached to the bonnet 3. The distance between the front edge 35 of the side cover 4 and the front edge 36 of the side cover 4 or the rib 41 of the front grill 5 and the support frame 11 can be easily adjusted.

Next, the effect of rotation will be explained.

First, the operation for removing the front grill 5 will be explained.

When the handle 23 is pulled in the direction of arrow "2" against the coil spring 13, the bottom plate 25 of the pressing tool 28 also moves upward in the same direction.

Since the bottom plate 25 can only move upward within the range where it comes into contact with the collar 30, if the length of the collar 30 in the axial direction is made long, buckling damage of the coil spring 13 will not occur.

When the bottom plate 25 is moved upward, the interlocking pin 27 is used.

The hook 7 swings around the swing shaft 9, and the tip hook of the hook 7 opens in the direction of the arrow "A" while pressing the front plate 26 of the pressing tool 28.
Due to the inclination of the support frame 11, the swing shaft 9 moves along the long hole 10 of the support frame 11 in the direction of the arrow 1", and performs a compound opening operation as partially shown in FIG.

In this state, move the upper part of the front grill 5 to the arrow shown in FIG.
By moving it in the "E" direction, it can be rotated forward around the lower fulcrum shaft 37, and by lifting the upper part, it can be removed.

When attaching the removed front grill 5, place the holder 38 at the inner lower part of the front grill 5 on the fulcrum shaft 37 and push it in the opposite direction of the arrow "E", and the locking tool 8 will ride on the front end slope 43 of the hook 7. At the same time, the hook 7 enters into the hook portion and locks while being operated in a compound opening manner.

At this time, the longitudinal direction and the width direction of the front grill 5 are both the long and short ribs 41a, 41b, the vertical surface 21 of the support frame 11, and the gap "S" between the front plate 26 of the pressing tool 28 and the swing shaft 9. It is adjusted and held in a fixed position.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is an enlarged side view of the main part with a part cut away, Fig. 2 is a side view of the main part,
FIG. 3 is an enlarged bottom view of the main part, FIG. 4 is an enlarged side view of the main part with a partial cross section to explain the operation, and FIG. 5 is an overall side view. In the figure, 1 is the machine frame, 2 is the engine, 3 is the bonnet,
4 is the side cover, 5 is the front grill, 6 is the moving axis,
7 is a hook, 8 is a locking tool, 9 is a swing shaft, 10 is a long hole, 1
1 is a supporting frame, and 12 and 13 are springs.

Claims (1)

[Claims] (1) The engine 2 is attached to the front of the machine frame 1, and the upper part of the engine 2 is covered with a bonnet 3, and the left and right sides are covered with side covers 4, 4.
In the one in which the front end opening of the front end is covered with the front grill 5,
The front end of the bonnet 3 is provided with a moving shaft 6 that expands and contracts in the inward and outward directions and a hook 7 that swings in the inward and outward directions, and a locking tool 8 that connects and detaches from the hook 7 is attached to the upper part of the front grille 5. , the hook 7 is pivotally attached to the support frame 11 around the swing shaft 9 of the hook 7 through the elongated hole 10 in the front-rear direction, and springs 12 and 13 that pull the locking tool 8 toward the bonnet 3 are attached to the bonnet. A front grill attachment/detachment device for a mobile vehicle characterized by being attached to three sides.