JPH0343060Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a headlight mounting structure for a tractor.

[Conventional technology]

Conventionally, as a headlamp mounting structure for this type of tractor, a support frame for mounting a lamp housing was integrally molded on one side of a plate-shaped light grill (for example, Japanese Patent Application Laid-Open No. 1983-1999-1).
Publication No. 178946).

[The problem that the idea attempts to solve]

In this way, the plate-shaped light grill can be strengthened by integrating it with the support frame, but since the light-transmitting lens has a small light-transmitting area, it is necessary to provide support at both left and right ends. It merely formed an attachment part to the frame.

The purpose of this invention is to improve the rigidity of the light grill by integrating the light grill with the support frame, and when the transparent lens is made to extend over a wide range from the front of the bonnet to both sides,
The object is to provide something that can further improve the supporting strength.

[Means to solve the problem]

The characteristic configuration of the present invention is that a transparent lens for the headlight is provided extending from the front of the engine bonnet to both side surfaces, a support frame in which the transparent lens is attached to the front surface over the entire length in the left and right direction, and a transparent lens. The light grill, which is connected to the lower part, is integrally molded with a resin material into a roughly square cross section.
The support frame is provided with left and right side end support parts that support both ends of the transparent lens, and intermediate support parts that support the left and right middle of the transparent lens, and the The frame is attached to the front surface of the engine bonnet so as to span the entire width of the front surface of the engine bonnet, and its functions and effects are as follows.

[Effect]

In other words, by integrally forming a support frame that supports the transparent lens and a light grill that is located below the transparent lens and has an outlet for discharging warm air inside the bonnet, the light grill can be used to support the transparent lens. It can function as a frame,
By making the vertical dimension of the translucent lens part the same as the conventional one, the vertical dimension can be made longer by the length of the light grill, and since the integral cross-sectional shape can be made approximately square, the section modulus of the cross section can be increased. Even if it extends over the entire width of the entire surface of the engine bonnet and is made of a resin material, the rigidity can be increased compared to the conventional structure.

What's more, the translucent lens extends from the front of the engine bonnet to both sides of the engine.
By extending not only the left and right side end support parts but also the intermediate support part from the support frame which is stretched to have approximately the same width, it is possible to support a translucent lens over a wide width without causing large deflection, and By forming the intermediate support portion, the rigidity of the support frame itself can also be improved.

[Effect of idea]

As a result, although it is made of resin material, the rigidity is improved by effectively utilizing the vertical positioning relationship between the light grill and the support frame and integrally molding both.
The thickness can be reduced, the molding cycle can be shortened, and the light grille and support frame can be molded all at once, greatly improving production efficiency.

Furthermore, by providing an intermediate support part in the support frame, even if the support frame has attachment parts to the bonnet only at both ends, the translucent lens and the support frame can act as reinforcing members for each other, and the respective parts can be strengthened. This indirectly makes it possible to implement a configuration that uses a wide translucent lens that increases rigidity and ensures a wide irradiation area.

[Example] A headlight structure of a lawn tractor 2 equipped with a mid-mounted mower 1, which is an example of a tractor, will be described in detail. As shown in FIG. 5, at the upper front end of the engine bonnet 4 provided in front of the operating section 3, there is a light grill 7 having a transparent lens 6 for the headlight 5 and a number of exhaust ports 7A below the lens. are placed flush. The light-transmitting lens 6 wraps around the lateral side of the bonnet 4 and is attached to the bonnet 4.
This lens 6 is integrally formed over the entire width of the lens 6.
It is fitted and fixed to a support frame 8 made of resin located at the rear of the frame. In other words, the left and right side end support parts 8 insert and fix the ribs extending from both ends of the transparent lens 6 into the left and right ends of the support frame 8.
a, 8a, and two intermediate support parts 8b, 8b into which the ribs extending from the transparent lens 6 are inserted and fixed are formed at the left and right intermediate parts. As shown in FIGS. 1 to 4, the support frame 8 is provided with conical reflector portions 8A that protrude rearward at two locations on the left and right, and accommodates the headlamp 5. The support frame 8 is integrally molded from the same resin material as the light grille 7, and has a substantially square cross-sectional shape as shown in FIG. 1 to increase its rigidity. On the back side of the support frame 8, four mounting bolts 9 are integrally implanted and fixed.
A support frame 8 is attached and fixed to a rear frame (not shown) through bolts 9 of the main protrusion.

[Another example]

This type of headlamp mounting structure may be applied to other tractors.

[Brief explanation of the drawing]

The drawings show an embodiment of the headlight mounting structure for a tractor according to the present invention, and FIG. 1 is a sectional view taken along the line -- in FIG. FIG. 4 is a rear view, and FIG. 5 is a front perspective view of the tractor. 5... Headlight, 6... Transparent lens, 7... Light grill, 8... Support frame, 8a... Right and left end support portion, 8b... Intermediate support portion, 9... Mounting portion.

Claims (1)

[Scope of utility model registration request] A support frame 8 is provided with a transparent lens 6 for the headlights 5, 5 extending from the front surface of the engine bonnet to both side surfaces, and a support frame 8 is provided with the transparent lens 6 attached to the front surface over the entire length in the left and right direction, and a transparent lens 6 is provided. A light grill 7 connected to the lower part of the lens 6 is integrally molded with a resin material to have a substantially square cross section, and the support frame 8 is provided with left and right side end support portions 8a, which support both ends of the transparent lens 6. 8a and an intermediate support portion 8b that supports the translucent lens 6 between the right and left sides, and the frame 8 is mounted over the entire width of the front surface of the engine bonnet via mounting portions 9 formed at both left and right ends of the frame 8. A tractor headlight mounting structure attached to the front of the bonnet.