JPH0513891Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to an opening/closing mechanism for an opening/closing lid which locks the lid by utilizing the attraction force of a magnet.

(B) Conventional technology Conventionally, the closing lock of the opening/closing lid rotatably arranged on the main body of the device has the adhesion force between a magnet placed on the main body of the device and an adsorption member such as a piece of iron placed on the opening/closing lid side. What is used is rewarded.

For example, Publication No. 53-8000 (E05C15/00)
In this method, a magnetic piece that is connected to a magnet and has a horizontal part and a vertical part is fixed to the main body of the device, and a U-shaped attraction piece that attracts the horizontal part and a tongue-shaped attraction piece that attracts the vertical part are attached to the opening/closing lid side. The device is designed to make the lid closing lock stronger by adsorbing the two.

(c) Problems to be solved by the invention In the above-mentioned prior art, the adsorption force between the normal magnet and the adsorption piece was not strengthened to achieve strong adsorption, but the number of adsorption points was simply increased. An increase in points cannot be avoided. Furthermore, since the magnet is fixed, the adsorption state lacks flexibility and it is difficult to maintain surface contact between the magnet and the adsorption piece, so strong adsorption cannot be expected.

(d) Means for solving the problem The present invention uses a suction member 13 disposed on the opening/closing lid.
, a rectangular parallelepiped-shaped mounting recess 7 formed in the device body and having an engaging portion 9 on the inner surface, a rectangular parallelepiped-shaped magnet 4, and suction surfaces 2, 2 bent from the upper edges of both left and right sides. , a magnetic member 1 with a bottom 3 having hook portions 5, 5 expanded upwardly on both the left and right sides, and openings on both front and rear sides into which the magnet is inserted; By attaching it to a magnetic member and fitting the magnetic member into the attachment recess, the magnetic member protrudes a predetermined amount from the attachment recess and becomes attracted to the attraction member when the opening/closing lid is closed. It is characterized by

(e) Effects Since the present invention is configured as described above, there is flexibility in the adsorption state between the magnetic member and the adsorption member, so that the magnetic member and the adsorption member can be easily held and strongly adsorbed at all times.

(C) Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is an exploded perspective view of the device of this embodiment.

An iron bracket (magnetic member) 1 holds a magnet 4 between adsorption surfaces 2, 2 bent at the upper ends of both sides and a bottom surface 3, and has hook parts 5, 5 on both sides that open upward. ,... are formed.

This bracket 1 is inserted into a mounting recess 7 formed in a main body 6 of the device.

As shown in FIG. 3, the mounting recess 7 has a cutout 8 formed on its inner surface, and the hook portion 5 of the bracket 1 inserted into the upper end (engaging portion) 9 of this cutout 8 is engaged. , it is prevented from coming off from the mounting recess 7.

When the bracket 1 is inserted into the mounting recess 7, the bottom surface 3 of the bracket 1 is in contact with the lower surface 10 of the mounting recess 7, and as shown in FIG. It's more in-depth. In this state, the hook portion 5 is separated from the upper end portion 9.

Next, the opening/closing lid 12 rotatably supported on the main body 6 of the device is closed as shown in FIG. 6 from the position shown in FIG.
When the bracket 1 approaches the mounting recess 7, the suction surfaces 2, 2 are attracted to the iron piece 13, the bracket 1 slides upward, and the hook parts 5, 5... until they engage with the upper end parts 9, 9. As shown in FIG. 1, the suction part 2,
2 protrudes from the top surface 11 and makes surface contact with the iron piece 13 to achieve a complete suction state, thereby locking the lid closed.

In addition, the bracket 1 is located at the front and rear of the mounting recess 7.
Since there is a slight clearance in the left and right directions, the suction surfaces 2, 2 can be tilted in the front and back and left and right directions, and even if there is some play in the opening/closing lid 12, the bracket itself can be moved up and down. Furthermore, the backlash is absorbed by tilting in the front-back and left-right directions, and surface contact is always maintained and a stable suction state is maintained.

(g) Effects of the invention As mentioned above, according to the invention, the bracket itself that holds the magnet is installed in the mounting recess with some play, so it absorbs the play with the adsorption member on the opening/closing lid side. surface contact is easily maintained and stable adsorption force is maintained. In addition, it is composed of two parts: a rod-shaped rectangular parallelepiped magnet that requires no processing other than cutting, and a cylindrical magnetic member (bracket) with front and rear openings, and has a structure in which the magnet is surrounded by a bracket that serves as a yoke. Therefore, the magnetic holding force is strong, and there is not much difference in external dimensions between the magnet and the bracket as a yoke.
This reduces installation space, parts costs, and assembly man-hours.

[Brief explanation of the drawing]

The drawings all relate to one embodiment of the present invention, and FIG. 1 is a perspective view in a suction state, FIG. 2 is an exploded perspective view, FIG. 3 is a perspective view with a part of the mounting recess cut away, and FIG.
The figure is a perspective view in an unadsorbed state, FIG. 5 is a side view when the lid is open, and FIG. 6 is a side view when the lid is closed. 1...Bracket (magnetic member), 4...Magnet, 5...Hook portion, 6...Device body, 7...
Mounting recess, 9... Upper end (engaging part), 12... Opening/closing lid, 13... Iron piece (adsorption member).

Claims (1)

[Scope of Claim for Utility Model Registration] An adsorption member 13 disposed on the opening/closing lid, a rectangular parallelepiped-shaped mounting recess 7 formed in the device body and having an engaging portion 9 on the inner surface, and a rectangular parallelepiped-shaped magnet 4. , has suction surfaces 2, 2 bent from the upper edges of both the left and right sides, and hook parts 5, 5 that are expanded upward on both the left and right sides, and both the front and rear sides into which the magnet is inserted are open. and a magnetic member 1 with a bottomed bottom 3, the magnet is attached to the magnetic member, and the magnetic member is fitted into the mounting recess, so that when the opening/closing lid is closed, the magnetic member is attached to the magnetic member 1. 1. A magnet mounting device, characterized in that it protrudes a predetermined amount from a mounting recess and is in an adsorbed state with the adsorption member.