JPH0539529Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for attaching a cover to a lamp housing of a vehicle lamp.

[Conventional technology]

FIG. 5 is an exploded perspective view showing an example of a vehicle lamp equipped with a cover, and FIG. 6 is an external perspective view of the same in an assembled state.

A light source bulb 2 is installed within a lamp housing 1 and covered with a front lens 3.

If this lamp is a closed type, it is produced as a lamp assembly in a factory, and as shown in Figure 5,
This assembly is fixed to the vehicle body by mounting screws 4. At this point, the heads of the mounting screws 4 mentioned above will be visible, so attach the cover 5 and tighten the mounting screws 4.
The design is completed as shown in Figure 5.

FIG. 7 shows the mounting structure of the cover 5, and depicts a state in which the cover 5 is removed and turned over.

In Figs. 5 to 7, arrow F indicates the front of the vehicle body;
That is, it shows the light projection direction of the lamp. The symbol f shown in FIG. 7 represents the direction in which the light is projected when the cover 5 is attached.

The lamp housing 1 is provided with an engaging portion 6 extending in the light projection direction (arrow F), and the cover 5 is provided with an engaging portion 7 corresponding to the engaging portion 6.

On the other hand, the cover 5 is provided with a hook 8 in the direction of arrow f, and the lamp housing 1 is provided with the hook 8.
A notch 9 is provided which engages with. The above-mentioned notch 9 may be a hole (not shown).

To attach the cover 5 to the lamp housing 1, the engaging portion 7 is applied to the engaging portion 6 as shown by arrow a, and the hook 8 is engaged to the notch 9 as shown by arrow b.

The A-A plane shown in FIG.
7, a hook 8, and a notch 9. A cross section taken along the line A-A is shown in FIG.

To attach the cover 5 of this conventional example, the engaging portion 6
After combining 7 and 7, move the hook 8 in the direction of arrow b' and fit it into the notch 9. The hook 8
acts like a ratchet pawl and engages with the notch 9,
After engagement, the bonded state is maintained firmly. In this case, the hook 8 draws an arc centered on the rear end O of the engaging portion 7 (the end opposite to the light projection direction F).

[The problem that the idea attempts to solve]

To remove the cover 5 attached as shown in Fig. 8, the tip of the driver 10 is applied to the engaging part of the hook 8, and the hook 8 is bent to disengage the engagement. As can be understood, when the engaged hook 8 is moved in the direction of the arrow b'', the hook-like protrusion of the hook 8 tends to bite into the edge of the notch 9, making it difficult to disengage.

This idea was created in view of the above circumstances.
Quickly attach and detach the cover from the lamp housing.
The purpose is to provide a mounting structure that can be easily installed.

[Means to solve the problem]

The basic principle of the present invention created to achieve the above object will be briefly described below with reference to FIG. 8 (prior art).

When the hook is moved around point O at the rear end of the engaging portion 7, its locus becomes a circular arc as shown by the reciprocating arc arrow b'-b''.

The shape of the hook 8 of the conventional example is such that when an attempt is made to turn the hook in the direction of detachment along the circular arc as indicated by arrow b'', the hook-shaped protrusion of the hook moves to deepen the engagement.
In the present invention, the direction of the hook is set so that the hook tends to disengage by movement in the direction of the arrow b''.

As a specific configuration based on the above principle, the mounting structure according to the present invention includes an engaging part provided around the lamp housing of the lamp and extending toward the front in the light projection direction, and an engaging part provided around the lamp housing of the lamp and extending toward the front in the light emission direction. A cover mounting structure comprising: a hole or notch provided in the cover; an engaging part provided in the cover and corresponding to the engaging part; and a hook provided in the cover and engaged with the hole or notch, The hook provided on the cover is characterized in that it has a hook-shaped projection that projects rearward in the light projection direction.

[Effect]

According to the above configuration, when the cover is removed, if the hook draws an arc around the engaging portion, the hook tends to disengage from the edge of the hole (or notch) of the hook-shaped protrusion. Easy to remove. Attachment of the cover is facilitated by the ratcheting action of the hook.

〔Example〕

FIG. 1 is a sectional view showing a cover mounting structure according to the present invention, and corresponds to FIG. 8 in the conventional example.

FIG. 2 is also an exploded perspective view, and corresponds to FIG. 7 in the conventional example.

The same drawing reference numbers as in FIGS. 7 and 8 indicate the same or similar components as in the conventional example.

In this example, the engaging portion 7' provided on the cover 5'
is a component corresponding to the engaging portion 7 in the conventional example, and engages with the engaging portion 6 of the lamp housing as indicated by arrow a'.

The hook 8' of this example is different from the hook 8 of the previous example in that it is provided facing backward. For details, see the attached state (first
In the figure, the hook-shaped protrusion is in the direction of light projection (arrow F)
and facing in the opposite direction.

Reference numeral 9' denotes an engagement hole provided in the peripheral portion of the lamp housing 1.

Since the hook 8' in this example faces rearward, it engages with the rear edge of the hole 9. In this example, an engaging member 11 is formed on the rear side of the hole 9 (on the side opposite to the arrow F) and is molded integrally with the lamp housing 1.

FIG. 3 is an exploded sectional view for explaining the assembly operation of the cover 5 in this embodiment.

When assembling, the hook 8' is inserted into the hole 9' as indicated by the arcuate arrow b' centering on the rear end of the engaging portion 7'. 8a is a rib provided on the hook 8',
When inserted into the hole 9', it comes into contact with the front edge (edge on the side of arrow F) of the hole 9', backs up the hook 9', and serves to prevent it from coming off.

FIG. 4 shows an embodiment different from the above, in which the engaging member 11 in the embodiment of FIG. 1 is omitted and the hook 8'' is engaged with the rear edge of the hole 9' (the edge opposite to the arrow F). It has a similar structure.

Comparing FIG. 1 and FIG. 4, when viewed from the center of rotation O of the hook, the engaging portion of the hook 8' in FIG. The engaging part of the hook is located at a low position.Depending on the height of this engaging part, there are advantages and disadvantages as shown below, so when implementing this invention, it is desirable to set the height of the engaging position of the hook appropriately. .

In FIG. 4, consider the trajectory when the hook 8'' is largely rotated around point O.

If you move it significantly downward as shown by the arc arrow b', the direction of movement will become horizontal.

Furthermore, when the object is moved upward significantly as indicated by the arcuate arrow b'', the direction of movement becomes vertical.

Therefore, the lower the engagement position of the hook is, the more pronounced the influence of the circular motion becomes, and the higher the engagement position of the hook, the less the influence of the circular motion.

Therefore, according to the embodiment of FIG. 4 in which the hook is in a low engagement position, it is much easier to disengage the hook. Furthermore, according to the embodiment shown in FIG. 1 in which the hook is in a high engagement position, the ease of operation for disengaging and disengaging the hook is slightly inferior (it is significantly better than the conventional example, but the embodiment shown in FIG. This example is slightly inferior to the example shown in FIG.

[Effect of idea]

As explained above, the engaging part is provided around the lamp housing of the lamp and extends forward in the light emission direction, the hole or notch is provided around the lamp housing, and the engaging part is provided in the cover. The present invention is applied to a cover mounting structure comprising an engaging portion corresponding to the engaging portion and a hook provided on the cover and engaging with the hole or notch, and the present invention is provided on the cover. When the hook has a hook-shaped protrusion that protrudes backward in the light projection direction,
The cover can be quickly and easily attached and detached.

[Brief description of the drawings]

1 to 3 show an embodiment of the cover mounting structure for a vehicle lamp according to the present invention, in which FIG. 1 is a sectional view in an assembled state, FIG. 2 is an exploded perspective view, and FIG. 3 is an assembled structure. It is an exploded sectional view for explaining attachment work. Fourth
The figure is a sectional view of an embodiment different from the above. Figures 5 to 8 show conventional vehicle lamp cover mounting structures, with Figure 5 being an exploded perspective view, Figure 6 being an assembled perspective view, and Figure 7 being an exploded perspective view of the vicinity of the engaging part. figure,
FIG. 8 is a sectional view. 1...Lamp housing, 2...Light source bulb,
3...Front lens, 5,5'...Cover, 6...
Engagement part, 7, 7'...Engagement part, 8, 8'...Hook, 9, 9'...Hole, 11...Engagement member.

Claims (1)

[Scope of Claim for Utility Model Registration] An engaging part provided around the lamp housing of the lamp and extending forward in the light emission direction, a hole or notch provided around the lamp housing, and a cover provided in the cover. A cover mounting structure comprising: an engaging portion corresponding to the engaging portion; and a hook provided on the cover and engaging with the hole or notch, wherein the hook provided on the cover is configured to emit light. A cover mounting structure for a vehicle lamp, characterized in that it has a hook-shaped projection that projects rearward in the direction.