JPH03295988A - Door catcher - Google Patents

Abstract

PURPOSE:To steadily maintain a door in its opening state by engaging an engaging cog part provided on a male latch made of a permanent magnet with a hole edge of an inserting hole provided on a ferromagnetic slide plate of the male latch. CONSTITUTION:A fixing plate 1 and a ferromagnetic slide plate slidable along the surface of the plate 1 are provided with inserting holes 4, 6 communicating with each other to form a female latch A. A male latch B made of a permanent magnet 8 is formed with an engaging cog 3a projectively formed on the free end of a projection 3. When the male latch B is inserted into inserting holes 4, 6 of the female latch A, the male latch B draws the slide plate 2 of the female latch A to engage the engaging cog 3a of the male latch B with a hole edge 6a of the inserting hole 6. The male latch B does not separate from the female latch A unless an operating piece 7 is operated to slide the slide plate 2, and a door is steadily maintained in its opening state.

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a door catcher using the attraction force of a permanent magnet.
More specifically, it is a door catcher in which the female and male stops are engaged with each other so that they do not come off inadvertently.
Regarding the provision of

[Prior art] This type of door catcher is used to keep a door open or to stop an open door from moving due to wind. , parts that engaged with each other were attached to a screen and a wall, a screen and a pillar, etc., and these parts were used by locking each other.

For example, an engagement ring may be provided on a member that stands up on the floor, and a hook provided on the folding wall may be hooked onto this engagement ring to keep the door open, or a clip may be provided on this member that stands up. A door catcher has been provided which holds a male rod having an enlarged head provided on the surface of the screen to maintain the screen in an open state.

This type of door catcher is convenient for holding the folding screen securely in the open state, and is used over a wide range of areas. The operation of closing the folding screen was also cumbersome, and easy handling was required.

Recently, door catchers using the attractive force of permanent magnets have come into use in various fields because of their ease of handling.

[Problems to be Solved by the Invention] However, this type of door catcher that uses the attraction force of a permanent magnet cannot hold a door in an open state or close a screen that is held in an open state. On the other hand, the force to hold the door open is weak, and when it is stirred by the wind or comes into contact with an object, it easily loses its suction, causing the folding screen to move unexpectedly or close. There were some inconveniences.

In view of the inconveniences of conventional door catchers, the door catcher according to the present invention is a door catcher that is easy to handle and can stably maintain the screen in an open state.
The purpose is to provide

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a door catcher.
is composed of a female stopper A and a male stopper B, and has a fixed plate 1 and a ferromagnetic slide plate 2 that is slidable along the surface of the fixed plate 1,
In addition, the fixing plate 1 and the slide plate 2 are provided with insertion holes 4.6 that communicate with each other to form a female stop A, and a protrusion 3 is inserted into the insertion hole 4.6 of the female stop A. The protrusion 3 has a protruding engagement jaw 3a at its free end and a male stop B consisting only of a permanent magnet 8, or a protruding engagement jaw 3a and a permanent magnet 8 composed of separate members. The hole edge 6a of the insertion hole 6 in the slide plate 2 of the female stop A to which the male stop B inserted into the insertion hole 4.6 of the female stop A attracts , is configured to be engaged with the engaging flange 3a of the male stop B.
By bringing the female stop A close to , the female stop A is attracted to the permanent magnet 8 of the male stop B, and the protrusion 3 of the male stop B is inserted into the insertion hole 4.6 of the female stop A. .

With the insertion of the protrusion 3 of the male stop B, the hole 1i6a of the insertion hole 6 of the slide plate 2 is inserted into the permanent magnet 8 of the protrusion 3.
The hole edge 6a is attracted to the permanent magnet 8, and the hole edge 6a and the engaging jaw 3a are automatically engaged, and the male stop B and the female stop A are attached to the operating piece 7. It cannot be separated unless the slide plate 2 is slid and the hole edge 6a engaged with the retaining jaw 3a is released.

[Embodiment] An embodiment of the door catcher according to the present invention will be described below with reference to the drawings.

The door catcher of this embodiment is composed of a female stopper A and a male stopper B, and the female stopper A and the male stopper B are opposite to the door body C. The female stops A, which are provided to face each other at the engaging parts C° of the floor, pillars, walls, etc., and constitute the door catcher are opposed to a rectangular fixing plate 1 on both sides of the fixing plate 1 in the longitudinal direction. It consists of a slide plate 2 which is slidable by engaging both side edges into a pair of slide grooves 5.5 provided in a shape. Note that the slide groove 5 may be formed integrally with the fixed plate 1, or may be formed separately.

The fixing plate 1 is typically made of a non-magnetic material such as brass or plastic, and has one or more rectangular insertion holes 4 arranged in the length direction, and has an L at one end in the length direction. A mounting portion 18 extending in the shape of a letter is attached to the main body C or to an anchoring portion C′ of a floor, pillar, wall, etc. with screws, rivets 9, or the like.

Further, the slide plate 2 is made of a ferromagnetic material, is arranged in the same manner as the insertion hole 4 of the fixed plate 1, and communicates with the insertion hole 4, so that the width in the longitudinal direction of the slide plate 2 is the same as that of the insertion hole 4. An insertion hole 6 is provided which is wider than the width in the direction.

Moreover, this slide plate 2 has an operation piece part 7 raised on one side of this slide plate 2 at one end in the longitudinal direction, and this operation piece part 7 is oriented in the opposite direction to the side of the mounting part 1a. The stopper portions 5a, 5 at both ends of the slide groove 5 are fitted into the slide groove 5.5 of the fixed plate 1.
It is said that it can freely slide between 8 spaces.

In addition, the stopper part 5a on the mounting part 1a side of this slide groove 5 may be configured to cover the side opening of this groove 5 on the surface of the door body C or the engaging part C'. .

Further, the operating piece 7 may be configured to be on the same surface as the slide plate 2 without being provided in the standing state.
It is sufficient that the operating piece 7 is assembled to the fixed plate 1 so as to protrude from the slide groove 5.5.

Furthermore, like the slide plate 2, the fixed plate 1 may be made of a ferromagnetic material. In this case, the female stopper A is attached to the door body C or the engaging part C' so that the side of the fixing plate 1 is the side that attracts the male stopper B, which will be explained later.

In addition, fixing plate 1, slide plate 2, insertion hole 4.
The shape and size of 6 and the number of insertion holes 4.6 are not specified, but are determined as necessary.

The male stopper B is a protrusion 3 inserted into the insertion hole 4 and the insertion hole 6 of the female stopper A, and this protrusion 3 has a retaining jaw 3a at its free end all around or partially. The permanent magnet 8 is made entirely of plastics containing hard magnetic powder, or the permanent magnet 8 is made of a non-magnetic material, or the permanent magnet 8 is made of a ferromagnetic material. As shown in FIG.
It is used by attaching it directly to the surface of the door body C or the engaging part C° with screws or rivets 9 or the like.

Further, the permanent magnet 8 used in the protrusion 3 may be magnetized on both sides or on one side. In the case of double-sided magnetization, the permanent magnet 8 has one magnetic pole surface on the side of the engaging jaw 3a of the protrusion 3,
In the case of single-sided magnetization, it is preferable to fit the magnetic pole face toward the protruding direction of the engaging jaw portion 3a, and to provide the magnetic pole face toward the protruding direction of the retaining jaw portion 38. This is a structure that enhances the adsorption effect.

The door catcher shown in FIGS. 1 to 3 is the most typical embodiment of the present invention. The mounting portion 3b is integrally provided with a protrusion 3 having an engaging jaw portion 3a, and a permanent magnet 8 is incorporated within the protrusion 3. The hole provided in the attachment part 3b is used to fix it to the door body C or the engagement part C' with screws, rivets 9, etc.

In addition, in order to maintain the attracted slide plate 2 of the female stopper A in a stable state of attraction to the protrusion 3, the yoke 10 is attached to the magnetic pole surface of the permanent magnet 8 on the side of the engaging jaw 3a of the protrusion 3. It is installed on.

The male stopper B and the female stopper A configured in this way are:
Attach one end to the door body C and the other end to the anchoring part C' of the floor, pillar, wall, etc. in the open position of the door body C, and insert the protrusion 3 of the male stop B and the female stop A. It is used by positioning it so that the holes 4 and 6 fit into each other.

Then, insert the projection 3 of the male stop B into the insertion hole 4.6 of the female stop A.
By fitting the slide plate 2 of the female stop A into the insertion hole 6 of the slide plate 2, the slide plate 2 of the female stop A is attracted to the permanent magnet 8 of the protrusion 3, and the engagement jaw 3a of the male stop B is inserted into the insertion hole 6 of the slide plate 2! #
6a is locked. That is, in the female stopper A, the hole edge 6a of the insertion hole 6 of the slide plate 2 on the engaging jaw portion 3a side of the protrusion 3 is close to the hole edge 4a of the corresponding insertion hole 4 of the fixed plate 1, and corresponds to the hole edge 6a of the insertion hole 6 of the slide plate 2. Hole edge 4b of the insertion hole 4 to which the hole edge 6b corresponds
The hole M6a on the engagement jaw 3a side of the insertion hole 6 of the slide plate 6 is in a different state from the permanent magnet 8 of the protrusion 3.
The female stopper A and the male stopper B cannot be separated because they are attracted to the suction surface and engaged with the engaging jaw portion 3a.

When releasing this, the operating piece 7 is pushed toward the mounting part 1a of the fixed plate 1 in the direction of arrow F in FIG. The male stop B is released from the female stop A.

In addition, the fixing plate 1 of the female stop A is fixed so that the protrusion 3 of the male stop B inserted into the insertion hole 4.6 of the female stop A can easily and reliably suck the slide plate 2 of the female stop A. It is desirable that the respective insertion holes 4.6 of the slide plate 2 have a positional relationship as shown in FIG. 2, and that the slide plate 2 is attracted in the direction of arrow G.

That is, the width of the insertion hole 4 of the fixed plate 1 in the operating direction is narrower than the width of the insertion hole 6 of the slide plate 2 in the operating direction, and the protrusion of the male stopper B inserted into this insertion hole 4. Slide plate 2 on the side of the retaining jaw 3a of the body 3
The hole edge 6a of the insertion hole 6 is always positioned closer to the protrusion 3 than the other hole edge 6b.

As a result, the slide plate 2 moves only toward the suction surface on the side of the retaining jaw 3a of the protrusion 3 inserted into the insertion hole 4.6, and slides below the engaging jaw 3a of the protrusion 3. The slide plate 2 is locked.

In FIG. 4, the fixed plate 1 is not provided with a slide groove, and the slide grooves 5 are formed on both sides of the slide plate 2.
5 are bent in a U-shape so that the slide grooves 5 and 5 face each other, and the fixed plate 1 is configured to fit between these slide grooves 5. 1b and a stopper IC that is bendably provided at the other end, the slide plate 2 fitted to the fixed plate 1 is prevented from being pulled out.

Next, in the embodiment shown in FIG. 5, the fixing plate 1 is made to have a U-shaped cross section, and guide grooves 11 and 11 are formed in the fixing plate 1 and the slide plate 2 incorporated into the U-shaped section. A guide pin 12 is inserted into the guide grooves 11, 11, and is fixed to the slide plate 2 so that the slide plate 2 can move six times relative to the fixed plate 1. Therefore, in this embodiment, there is no need to provide grooves for fitting the fixed plate 1 and the slide plate 2.

Furthermore, in the embodiment shown in FIG. 6, the fixing plate 1 is used as a thin box-shaped box with an open bottom, and when the slide plate 2 is assembled to the fixing plate 1, the opening on the side of the fixing plate 1 is shaped like a frame. The slide plate 2 is slidably assembled into the fixed plate 1 by covering it with M1'', and the lid is bent into an L shape with the mounting part 1'a of 1° to attach to the door body C or the locking part. It is configured to be attached to C.

In the above embodiments, the slide plate 2 is slidably attached to the fixed plate 1, and the slide plate 2 is attached to the fixed plate 1 in a fixed manner. Any structure may be used as long as it can be used within the above range. and,
In this case, the hole edge 6a of the insertion hole 6 of the slide plate 2 on the insertion side of the engagement jaw 3a of the protrusion 3 is always closer to the inserted protrusion 3 than the hole edge 6b on the other side. It is preferable that the slide plate 2 is assembled to the fixed plate 1 so that.

Next, in the embodiment shown in FIG. 7, an auxiliary permanent magnet 8° is further provided on the permanent magnet 8 constituting the male stopper B, and a yoke lO° is also provided, so that the attraction of the female stopper A is is done more effectively. When using the male stop B of this embodiment, it is preferable that the fixing plate is made of a non-magnetic material with the intention of smoothing the adsorption and movement of the slide plate 2 by the protrusion 3. However, if the fixing plate 1 itself is The fixed plate 1 is made of a magnetic material and is ferromagnetic as in the embodiment shown in FIG.
It may be used so that it is in close contact with the side of the male stopper B. In this way, the female stopper A has a ferromagnetic fixed plate 1 and a ferromagnetic slide plate 2, and the male stopper B has a projection 3.
However, by configuring the stopper to be inserted from the side of the fixed plate 1, the permanent magnet 8° strongly attracts the fixed plate 1, and the male and female stops reliably attract each other.
Moreover, in the female stopper A attracted to the male stopper B, the permanent magnet 8'
The lines of magnetic force pass through the fixed plate 1, so the slide plate 2 is not attracted to the slide plate 2.
is not hindered from sliding due to the attractive force of this permanent magnet at 8°.

In this way, when the fixed plate 1 is made of a ferromagnetic material and is assembled so as to be located on the side of the male stop B to form the female stop A, the permanent magnet used is assembled at 8.8°. Regardless of which side the magnetic poles are oriented to, efficient adsorption of the male and female stops and sliding locking of the slide plate 2 can be achieved.

In the embodiment shown in FIG. 8, the male stopper B is made of a plastic magnet or the like containing hard magnetic powder, and a screw 13 etc. is integrally attached to the door main body C or the locking part C for use. It is molded.

In each of the embodiments described above, the side of the engaging jaw 3a of the male stop B is directed downward;
a may be provided facing upward or may be provided facing sideways. When this locking jaw is directed upward, the direction of movement of the slide plate 2 of the female stopper A is as follows:
The direction is opposite to arrow G in Figure 2 and arrow F in Figure 3,
The opposite side of the hole edge 8a of the slide plate 2 is also reversed.

[Effects of the Invention] As described above, the door catcher according to the present invention has a fixed plate and a slide plate that is slidable along the surface of the fixed plate, and the fixed plate and the slide plate have is a female stopper provided with insertion holes that communicate with each other, and a protrusion that is inserted into the insertion hole of the female stopper, the protrusion having an overhanging engaging jaw at the upper part of the permanent The slide of the female stop is composed of a male stop made of a magnet or has an overhanging engagement jaw and a permanent magnet, and the male stop inserted into the insertion hole of the female stop attracts attraction. Since the hole edge of the insertion hole in the plate is engaged with the engaging jaw of the male stop, the female stop A is attracted toward the male stop B, and the protrusion 3 of the male stop B By inserting into the insertion holes 4.6 of the fixed plate 1 and slide plate 2 of the female stopper A, the hole edge 6a of the insertion hole 6 is inserted into the permanent magnet 8 of the protrusion 3.
is attracted and the slide plate 2 slides, the hole edge 6a is attracted to the suction surface, and the hole edge 6a and the engaging jaw portion 3a are engaged.

Therefore, unless the slide plate 2 is moved by the operation piece 7, the engagement between the engagement jaw 3a and the hole edge 6a will not come off.
Since the male stopper B and the female stopper A do not separate, the folding screen can always be stably maintained in the open state.

Furthermore, since the male stopper B and the female stopper A are automatically locked as described above, there is no need to operate the slide plate 2 when opening and stopping the folding screen.

Furthermore, since the male and female stops can be released by simply pushing or pulling the slide plate 2, the door can be easily closed.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an embodiment of the door catcher according to the present invention, and FIG. 2 is a sectional view showing the same embodiment in a locked state.
Fig. 3 is a sectional view showing the disengagement operation, Fig. 4 is a perspective view with parts separated showing another embodiment of the female stop, Fig. 5 is a perspective view with parts separated of another female stop, 'fS6 FIG. 7 is a sectional view showing an embodiment of another male stop; FIG. 8 is a sectional view showing an embodiment of still another male stop. . A...Female stop, B...Male stop, C...Door body, C
゛...Attachment part, D...Adsorption surface, 1...Fixing plate, 2...Sliding plate, 3...Protrusion, 4...
...Insertion hole, 5...Slide groove, 6...Insertion hole, 7
...Operation piece part, 8...Permanent magnet, 9...Rack, lO
... Yoke, 11... Guide groove, 12... Guide bin, 13 Screw.

Claims (1)

[Claims] 1. It has a fixed plate and a ferromagnetic slide plate that is slidable along the surface of the fixed plate, and the fixed plate and the slide plate are in communication with each other. a female stopper provided with an insertion hole; and a protrusion inserted into the insertion hole of the female stopper, the protrusion comprising a permanent magnet having an engaging jaw protruding from its free end. The male stop has a male stop or an overhanging engagement jaw and a permanent magnet, and the male stop inserted into the insertion hole of the female stop is attached to the slide plate of the female stop that attracts the male stop. A door catcher characterized in that a hole edge of the insertion hole is engaged with an engaging jaw of the male stop.