JPS63315784A - Door stop for door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention is a door anti-slip device that is attached to a door, floor, etc., and uses the attraction force of a permanent magnet to hold the door in an open or closed state. This invention relates to a door anti-adhesion device that allows accurate suction even if the door is not centered during installation and even if the installation position shifts over the period of use of the door.

(Prior art) Conventionally, in order to keep the door in the open or closed state, a door stop with a cylindrical end facing the open or closed door is fixed to the floor, etc. Generally, devices were used in which a hook was hooked onto a metal fitting attached to the door surface to lock the door, but this required bending or squatting each time the door was unlocked. However, there were also problems with the door rattling when it was blown by the wind, and in some cases the hooks coming off the metal fittings, so we installed a pair of male and female adsorption devices that utilize the adsorption power of permanent magnets to attach to the door. The door stop is installed to hold the door in the open or closed state, and the door is automatically held by simply opening and closing the door to the door stop position, and when the door no longer needs to be held, it can be removed from the door stop. The male and female adsorbers used had magnetic force concentrated on the core bar to strongly adsorb the male and female adsorbers, and all they had to do was release them.

(Problem to be Solved by the Invention) However, in the above-mentioned anti-slip device, a pair of male and female suction devices installed on the door and the doorstop fuse the core metals together, concentrating the lines of magnetic force on this, creating a magnetic circuit, and creating a strong magnetic circuit. It is a suction device, and if the core metal positions are shifted from each other, the suction force will be significantly reduced. It is necessary to center the door, and as the door is used for a long time, the door will shift due to misalignment of the mounting position, wear of the pivot joint, etc., and the male and female suction tools will be out of center, preventing proper suction. There were problems such as.

(Means for Solving the Problems) The present invention was provided to solve the above problems, and provides a permanent magnet having a hole 1a extending from one magnetic pole face a to the other magnetic pole face. A ferromagnetic plate 2 is attached to the magnetic pole surface a of the ferromagnetic plate 2, and the suction tool A is located on the same plane as the magnetic pole surface, and the tip surface of the ferromagnetic protrusion 2a protruding from the ferromagnetic plate 2 is attached to the door B. The cylindrical body 5 is placed in the cylindrical body 5 of the door stop C provided opposite to the cylindrical body 5.
At least the side of the magnetic pole face protrudes from 5° of the end of the
In addition, a mounting rod 7 protruding from the magnetic pole surface a side of the suction tool A is inserted into a hole 6a at the center of a partition wall 6 provided in the cylinder 5 so as to be movable in all directions within the hole 6a of the partition wall 60. is attached and is fired in the direction of the opening of the cylinder 5,
A plate-shaped ferromagnetic member 3 is provided on the surface of the door B facing the suction tool A.
This is a door anti-slip structure with a door attached to it.

(Function) The door anti-slip configured as described above is the hole l of the permanent magnet 1 of the suction tool A installed in the cylinder body 5 of the door stop C.
The tip surface of the ferromagnetic protrusion 2a protruding from the ferromagnetic plate 2 in a is located in substantially the same plane as the magnetic pole surface, and the suction surface is flat with no irregularities, and is attached to the door B. Since the suction tool A is attracted to the plate-shaped ferromagnetic member 3, even if the opposing positions of the adsorption tool A and the ferromagnetic member 3 are shifted, the adsorption tool A and the ferromagnetic member 3 can be adsorbed without any problem and maintain a normal adsorption state. Since it is movable in all directions inside the cylinder and is elasticized by the opening of the cylinder, it always corresponds to the plate surface of the ferromagnetic member 3 and attracts it closely, concentrating the lines of magnetic force on the ferromagnetic protrusion 2a. Strongly adsorbs.

Furthermore, because of the above structure, even if the door is blown by the wind, the suction tool on the door stop follows the movement of the door and maintains a proper suction state.

(Example) An example of the present invention will be described below with reference to the drawings.

Reference numeral 5 denotes a cylindrical body of the door stop C facing the opening side of the door B, and a partition wall 6 is provided within the cylinder body 5 at a predetermined distance from the end portion 5'. A hole 6a is provided in the center of the hole 6a.

A is a suction tool, in which the strong snoring 2 of Ennosin is attached to the m-rope surface a of the annular plate-shaped l4m stone 1 having a hole 1a extending from one magnetic pole surface a to the other magnetic pole surface. The permanent magnet 1 is fitted into an inverted dish-shaped non-magnetic case 4 having a hole 4a communicating with the hole 1a at the bottom with the magnetic pole face facing inward, and a locking claw provided at the opening edge of the case 4 4b holds the permanent magnet l and the ferromagnetic plate 2 together, and the adsorption tool A
The ferromagnetic plate 2 has a short culm-shaped ferromagnetic protrusion 2a integrally provided with a small-diameter mounting rod 7 at one end.
By inserting the tip into the hole la and crimping it, or by screwing it into the hole of the ferromagnetic plate 2, the tip surface is positioned in the hole la approximately in the same plane as the magnetic pole face (with the tip slightly closer to the magnetic pole face). (You may take it down)
A coil spring 8 having an insertion seat 8a and a stopper seat 8b at both ends is inserted into the mounting rod 7, and the mounting rod 7 is loosely inserted into the hole 6a, and the protruding tip is threaded. oak)7
A is screwed or caulked to form an enlarged head, so that the suction tool A is installed once inside the cylinder 5 with the side facing the magnetic pole protruding from the end 5° of the cylinder 5. ing.

Here, the size is such that there is a free movement gap for the suction tool A between the suction tool A and the inner wall surface of the cylinder 5, and the hole 6a has a large diameter with enough room for the mounting rod 7. A washer 9 is fitted as a stopper between the nut 7a or the enlarged head or the like and the partition wall 6, and the mounting rod 7 is movable in all directions of the hole 6a. Note that the washer 9 may be omitted and the nut 7a or the enlarged head may be used as a temporary seat.

In addition, a plate-shaped ferromagnetic member 3 is attached to the surface of the door B by screws, nails, adhesives, etc., and when the door is brought into contact with the doorstop C, the suction tool A and the ferromagnetic plate 3 are separated. is attracted and the door B is held open or closed.

FIG. 2 shows a magnetic shield plate 10 made of a ferromagnetic material interposed between the magnetic pole face and the case 4, and lines of magnetic force jump outward from the magnetic pole face when the ferromagnetic member 3 is not attracted. This is an embodiment of an adsorption tool A that prevents the magnetic recording from being adversely affected even if cash cards, other magnetic recording cards, magnetic tapes, etc. approach the surface. An example in which the magnetic pole face is exposed and is cylindrical in size,
FIG. 4 shows an embodiment in which a magnetic shield plate 10 is provided. In FIG. 5, the permanent magnet 1 is a plastic magnet containing hard magnetic powder and molded from synthetic resin, the case 4 is omitted, and the ferromagnetic plate 2 is embedded in the magnetic pole face a side of the permanent magnet 1. Figure 6 shows an embodiment in which a magnetic shield plate 10 is embedded in the side facing the magnetic pole.

(Effects) Since the door anti-slip according to the present invention is configured as described above, simply opening or closing the door to the door stop installation position causes the door to stick to the door stop and maintain the open or closed state. A suction device using a permanent magnet can obtain a strong suction force because the lines of magnetic force are concentrated on the ferromagnetic protrusion.

In addition, since the tip surface of the ferromagnetic protrusion of the suction device installed on the doorstop is located approximately in the same plane as the magnetic pole surface on the attraction side of the permanent magnet, the adsorption position with the plate-shaped ferromagnetic member is limited. In addition, the suction tool installed on the door stop is movable in all directions within the cylindrical body of the door stop, and can be swung in the opening direction, so it is easy to center the door during installation. Furthermore, even if the door is misaligned due to long-term use, the plate-shaped ferromagnetic member and the adsorption tool on the door stop are always pressed against each other with their respective adsorption surfaces facing each other for the best adsorption. conduct.

In addition, the suction tool is fired in the opening direction and is movable in all directions, so even if the door is stirred by wind, it will follow the movement of the door and remain directly facing the ferromagnetic plate surface. Also, there is no force applied to the suction surface from one end, which is the weak point of the product.

Since the door is fired, it won't rattle even when the wind blows it.

In addition to locking entrance doors, the present invention is also suitable as a door catcher for temporarily holding furniture doors such as chests of drawers, lower kitchen doors such as sinks, and cabinet doors closed.

[Brief explanation of drawings]

FIG. 1 is a sectional view of one embodiment of the door anti-slip according to the present invention, and FIGS. 2 to 6 are sectional views showing various embodiments of the suction tool. A... Suction tool, B... Door, C... Door stop, a, b
...Magnetic pole surface, 1...Permanent magnet, 1a...Hole, 2.
...Ferromagnetic plate, 2a...Ferromagnetic protrusion, 3...Ferromagnetic member, 4...Case, 5...Cylinder, 5゛...End, 6...Partition, 6a ... Hole, 7... Mounting rod, 7a
... Nut, 8... Coil spring, 8b... Temporary,
9...Washer, 10...Magnetic shield plate.

Claims (1)

[Claims] A ferromagnetic plate is attached to the magnetic pole face a of a permanent magnet having a hole extending from one magnetic pole face a to the other magnetic pole face b, and the tip surface of the ferromagnetic protrusion protruding from the ferromagnetic plate is the magnetic pole face. A suction tool located in substantially the same plane as b is provided in a cylindrical body of the door stop provided facing the door, with at least the side of the magnetic pole face b protruding from the end of the cylindrical body, and is provided within the cylindrical body. A mounting rod protruding from the magnetic pole surface a side of the suction tool is inserted into the hole at the center of the partition wall so as to be movable in all directions within the hole of the partition wall, and is elastically pushed in the direction of the opening of the cylinder. and a plate-shaped ferromagnetic member is attached to the surface of the door facing the suction tool.