JPH0128705Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lid opening/closing mechanism provided in electronic equipment, mechanical equipment, etc., to prevent erroneous operation of switches, etc., and to protect operating parts such as levers and mechanical parts.

In conventional lid opening/closing mechanisms, the shaft that is the center of opening and closing is fixed to the lid body using mounting brackets, screws, rivets, or adhesives, or when the lid body is made of plastic molding. The method used was to fix the shaft, which is the center of opening and closing, to the lid body using insert molding. For this reason, with the former, the opening/closing mechanism may rattle during use due to improper installation, and when used in narrow areas, the heads of screws and rivets protrude from the lid surface, causing damage to the surrounding area. The disadvantage was that it was necessary to provide sufficient space between the parts. In addition, the latter method requires a fairly large mold, and has the disadvantage that the lid holding part cracks due to stress during use, resulting in incomplete holding of the shaft and also causing wobbling in the opening/closing mechanism. Ta.

The present invention provides a novel lid opening/closing mechanism that overcomes the above-mentioned drawbacks of the conventional lid.

In other words, the purpose of the present invention is to provide a lid with a recess (or locking hole) for positioning the axis that is the center of opening and closing, without relying on screws, rivets, or other locking means, and a locking mechanism with a projection. The objective is to obtain a simple lid opening/closing mechanism that presses and fixes the shaft to the back surface of the lid while simultaneously holding it with metal.

1 and 2 show the surrounding structure with the lid closed in order to explain the lid opening/closing mechanism of the present invention.

As shown in FIG. 2, the shaft 4 is clamped and fixed by the lid 1 and the stopper 2, and is supported by a bearing 3 which is disposed opposite to each other and has an engagement hole. Therefore, the lid 1 can be opened smoothly in the direction of the arrow A around the shaft 4. In addition, the bearing 3 shown in FIG.
is fixed to a panel base 8, and its position when the lid 1 is closed is determined by an escutcheon 5. Note that the opening 11 of the escutcheon 5 accommodates operating parts such as switches and levers. Further, as shown in FIGS. 2 and 3, the lid 1 is made of a single plate and has a shaft 4.
A plurality of recesses (or holes) 6 are provided along the longitudinal direction of the shaft in the vicinity of the shaft to be press-fixed for positioning to engage with the protrusions of the stopper 2. Stopper metal 2
is made of a thin metal plate with spring properties, and is provided with a plurality of convex protrusions 7 on the side that contacts the lid 1 for positioning to engage with the recesses (or holes) 6 of the lid 1 when assembled and fixed. It is being Further, the portion in contact with the shaft 4 forms a V-groove, so that the shaft can be stably held. The opening 9 of the stopper 2 is
It is made to have approximately the same dimensions as the plate thickness of the lid 1, and is made to be sturdy when clamped during assembly. The end 10 of the stopper 2 is bent and is pressed against a part of the escutcheon 5 located at the outer edge of the opening of the operating section when the lid is closed, so that it functions as a stopper. .

The shaft 4 has a diameter dimension so that the shaft 4 has sufficient pulling strength in the longitudinal direction and does not rotate in the circumferential direction when the shaft 4 is held between the V-groove portion of the lid 1 and the stopper 2. selected.

Note that the recess 6 of the lid 1 may be a hole. In yet another embodiment, the concave portion of the lid 1 may be conversely made into a convex portion, and the convex portion of the stopper metal 2 may be made into a concave portion or a hole.

The present invention has the above structure and is assembled by placing the shaft 4 in the V groove of the stopper 2 without using any screws, rivets, or adhesives, as shown in Figure 2. This can be easily done by pushing out the opening, inserting the lid 1, and engaging the concave and convex portions.

As described above, according to the present invention, the lid 1 is made of a single plate that can be easily processed, the metal shaft 4 has no steps, and the stopper 2 is made of a thin metal plate that can be easily bent. An extremely solid lid opening/closing mechanism is obtained due to the springiness of the metal metal 2.

Furthermore, since there are no screws, rivets, or adhesives required for assembly, it can be assembled in a simple process. moreover,
Since no unreasonable force is concentrated on the holding portion of the lid, no cracks will occur, and no rattling will occur in the opening/closing mechanism.

[Brief explanation of drawings]

FIG. 1 is a plan view, FIG. 2 is a sectional view, and FIG. 3 is a perspective view.

Claims (1)

[Scope of utility model registration request] In a lid opening/closing mechanism consisting of a lid, a stopper, a shaft, and a bearing, a recess and a protrusion, or a hole and a protrusion that fit into the lid and the stopper, respectively, are provided, and the stopper allows the lid to be closed. A lid opening/closing mechanism characterized by holding a shaft.