JPH0132767Y2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention relates to a front panel fixing structure in which the front panel of a housing made of plastic or the like is secured to the front surface of the chassis using elastic hooks.
In particular, the present invention relates to a front panel fixing structure for a housing that can securely fix the front panel even if there are variations in the assembly accuracy of the housing or the elastic force of the elastic hook decreases due to long-term use.

(2) Prior art and problems As shown in Figure 1, the conventional front panel fixing structure of a housing made of plastic, etc. has locks provided at the top of the front side of both sides of the chassis section 1. The claws 5, 5 of elastic hooks 4, 4, which are protruded from both sides of the front panel 3 toward the chassis section 1 and expand and contract elastically, are engaged in the recesses 2, 2, thereby closing the chassis section 1.
At the same time, as shown in FIG.
and was covered with an upper cover 7. But in this case,
The elastic hooks 4, 4 of the front panel 3 are attached to the chassis part 1.
Since the hooks are locked in the locking recesses 2, 2 only by their elastic force, the elastic hooks 4 and the locking recesses 2 may be insufficiently locked due to variations in assembly accuracy between the chassis portion 1 and the front panel 3. There were times when the fixation became uncertain. In addition, due to long-term use or repeated use, the elastic force of the elastic hooks 4, 4 may decrease, or the pawls 5, 5 may become worn and the hooks in the locking recesses 2, 2 may become shallower. 4 and the locking recess 2 may be insufficient, and their fixation may become uncertain.

(3) Purpose of the invention This invention was made to solve the above problems, and it is possible to securely fix the front panel even if there are variations in the assembly accuracy of the housing or the elasticity of the elastic hook decreases due to long-term use. The purpose of the present invention is to provide a structure for fixing the front panel of a housing.

(4) Structure of the invention According to the invention, the claws of the elastic hooks protruding from both sides of the front panel are engaged with the engagement recesses provided on the front side of both sides of the chassis part. In the front panel fixing structure of the casing, the front panel is fixed to the front surface of the chassis part by stopping the chassis part, and the chassis part is covered with a lower cover and an upper cover, the front side of the inner surface of the upper cover or the lower cover. The front panel of the housing is characterized in that wedge-shaped ribs are provided at positions corresponding to the elastic hooks of the front panel for pressing the elastic hooks from both sides outward toward the locking recess of the chassis portion. This is achieved by providing a fixed structure.

(5) Embodiments of the invention Hereinafter, embodiments of the invention will be described in detail based on the attached drawings.

FIG. 4 is an external perspective view showing the front panel fixing structure of the casing according to the present invention, which includes a chassis portion 1, a front panel 3, a lower cover 6, and an upper cover 7. On both sides of the chassis section 1, fifth
As shown in the figure, substantially rectangular locking recesses 2, 2 are provided at the upper part of the front side thereof. A front panel 3 made of plastic or the like is fixed to the front side of the chassis section 1. That is, from both sides of the front panel 3 facing the front surface of the chassis section 1, elastic hooks 4, 4, which expand and contract elastically, protrude toward the chassis section 1 side. The claws 5, 5 are fixed by elastically engaging the locking recesses 2, 2. In this state, as shown in FIG. 4, the lower and upper halves of the chassis section 1 are respectively covered with a lower cover 6 and an upper cover 7 made of plastic or the like.

Here, in the present invention, as shown in FIG. 6, ribs 8, 8 are provided on the inner surface of the upper cover 7. As shown in FIG. 4, when the front panel 3 is fixed to the front surface of the chassis section 1 and the upper cover 7 is put on, the ribs 8, 8 allow the elastic hooks 4, 4 to be attached to the chassis section 1 from outside on both sides. It is pressed against the locking recesses 2, 2 side of the upper cover 7.
It is provided on the front side of the inner surface of the front panel 3 at a position corresponding to the elastic hooks 4, 4 of the front panel 3 in the shape of a wedge that becomes narrower downward. Therefore, when the upper cover 7 is placed over the chassis portion 1, the inwardly downwardly tapered portion 9 of the rib 8 is locked into the locking recess 2 of the chassis portion 1, as shown in FIG. The outer surface of the elastic hook 4 can be pressed inward.

Although the ribs 8, 8 are shown as being provided on the inner surface of the upper cover 7 in FIGS. When the recesses 2, 2 and the elastic hooks 4, 4 of the front panel 3 are provided on the lower half side of the chassis section 1, they may be provided on the inner surface of the lower cover 6.

(6) Effects of the invention Since the invention is constructed as described above, when the upper cover 4 is attached with the front panel 3 fixed to the front of the chassis section 1, the ribs 8, 8 on the inner surface of the upper cover 4 are attached.
With this, the elastic hooks 4, 4 of the front panel 3 can be pressed against the locking recesses 2, 2 of the chassis portion 1 from both sides of the outside. Therefore, even if the elastic hooks 4, 4 and the locking recesses 2, 2 are not sufficiently locked due to variations in assembly accuracy between the chassis portion 1 and the front panel 3, they can be forcibly locked and fixed. can be ensured. In addition, the elastic force of the elastic hooks 4, 4 may decrease due to long-term use or repeated use.
Alternatively, even if the pawls 5, 5 are worn out and the engagement with the locking recesses 2, 2 becomes shallow, the locking can still be forcibly performed to ensure the fixation.

[Brief explanation of drawings]

1 to 3 are explanatory diagrams showing a conventional housing front panel fixing structure, FIG. 4 is an external perspective view showing a housing front panel fixing structure according to the present invention, and FIG.
The figure is a perspective view showing how the front panel is fixed to the chassis part, Figure 6 is a perspective view showing the upper cover inverted, and Figure 7 is a rib on the inside surface of the upper cover that presses the elastic hook toward the locking recess. FIG. 2 is an enlarged explanatory view of the main part showing the attached state. 1... Chassis portion, 2... Locking recess, 3... Front panel, 4... Elastic hook, 5... Claw, 6...
Lower cover, 7... Upper cover, 8... Rib, 9...
Tapered part of the rib.

Claims (1)

[Scope of utility model registration request] The claws of the elastic hooks protruding from both sides of the front panel are locked into the locking recesses provided on the front side of both sides of the chassis section, thereby fixing the front panel to the front surface of the chassis section. In the front panel fixing structure of the housing in which the chassis portion is covered with a lower cover and an upper cover, an elastic hook is attached to the front side of the inner surface of the upper cover or the lower cover at a position corresponding to the elastic hook of the front panel. A housing front panel fixing structure characterized by wedge-shaped ribs that press the front panel of the chassis against the locking recess of the chassis from both sides.