JPH0640258U - Door stopper - Google Patents

Abstract

(57) [Summary] [Purpose] It is detachable from the door and prevents the door from automatically closing when it is desired to keep the door open. [Structure] To secure the door end made of a permanent magnet to a steel door 21, and to bring the free end end surface of a leg portion 5 pivotally supported on the back surface of the magnet portion 2 into contact with the floor. The structure prevents the door closer from operating in the closing direction and keeps the door 21 open.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door stopper.

[0002]

[Prior art]

 A steel door that is installed at the entrance of the office or at the entrance of the home has a door closer with an elastic force on the top. This door closer is configured to return the opened door to the closed state by the hydraulic pressure or the spring force, or to maintain the opened state when the door is opened a predetermined angle.

[0003]

[Problems to be solved by the device]

 According to this door closer, for example, when the entrance door is opened for carrying in / out the luggage, a person or luggage touches the door, or the stationary state is broken by the wind, and the door closer operates to automatically open the door. It is easy to get in and out of the equipment, such as when it is closed. In order to prevent this, a wedge-shaped stopper is installed in the gap between the bottom surface of the opened door and the floor, and other heavy objects are prevented from closing the door. Since it is a separate body, it is easy to lose, it is troublesome to put it on, and there are cases where there is no suitable heavy load, so it is not practical.

On the other hand, in a recent house, a door stopper fixed to the inside of an outside door in the shape of a bar is well known. However, since it always protrudes inside the door, it becomes an obstacle when not in use, and Not available for doors that open inward.

Therefore, the present invention can be applied to steel doors both inside and outside, and when actuated, the doors are firmly locked to the floor by the frictional force of the tip surfaces of the legs and an external force is applied thereto. The purpose is to provide a door stopper that is not unlocked.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises a magnet portion having one surface serving as an attracting surface and a leg portion pivotally supported by a pin on a mounting piece fixed to the other surface of the magnet portion. The magnet portion includes a magnet body made of a ferromagnetic material and a case in which the magnet body is housed and fixed. The leg portion is provided with a non-slip means at a free end thereof. The door stopper is characterized in that each of the portions is formed with a locking means that elastically engages with each other when the legs swing to the other side orthogonal to the pin.

[0007]

[Action]

 When the magnet part of the door stopper is fixed to the inner surface of the door made of a magnetic material and you want to keep the door open for a long time, release the leg from the upward locked state and set the leg to the floor surface. By using a hard rod with the inner surface of the door, the movement of the door in the closing direction is blocked by the frictional action between the free ends of the legs and the floor surface.

[0008]

【Example】

 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a vertical sectional view taken along the section line II-II of FIG. 1, FIG. 3 is a partial rear view, and FIG. Is a plan view of the usage state. As shown in these figures, a door stopper 1 is provided on an inner surface 22 of an outer opening, for example, a steel door 21, which is attached to an entrance 20 of an office or an entrance 20 of a house, opposite to the opening direction. Removably fixed to.

As shown in the above-mentioned drawings, the door stopper 1 includes a magnet portion 2 having one surface serving as an attraction surface for a magnetic material, and a mounting piece 3 protrudingly fixed to the other surface of the magnet portion 2. And a leg 5 pivotably supported via a pin 4.

Further, according to FIG. 2, the magnet portion 2 is housed in the case 6, which is a stainless steel case 6 which is a bottomed short cylindrical tubular yoke into which a cylindrical shaft 7 is press fitted. One surface (left side surface in FIG. 2), which is made of a ferromagnetic material such as a ferrite element and serves as an adsorption surface, has a single polarity (for example, S pole) as shown in FIG. 5 which is an enlarged partial sectional view thereof. And a magnet body 8. The magnet body 8 is pressed and fixed by being filled with an adhesive 9 between the magnet body 8 and the bottom surface of the case, and one surface thereof is covered with a room temperature curable synthetic resin film 10 such as an epoxy resin having a thickness of 0.2 mm. There is. In the magnet portion 2 having this structure, since a magnetic flux is formed along the thickness direction of the magnet body 8, a strong attractive force is obtained. This is the same even if the attracting surface of the magnet body 8 is the N pole. The coating 10 is also applied to protect the surface of the door 21, but it may be omitted.

Further, the mounting piece 3 has a grooved steel shape in section having a stepped flange portion 11, penetrates the web portion 12, and is fixed to the magnet portion 2 by a screw member 13 screwed onto the shaft 7. The stepped flange portion 11 of the mounting piece 3 is connected to both sides of the web portion 12 in the width direction, and is connected to the large gap piece 14 facing each other and the large gap piece 14 via the step portion 15, and the free end of each of them. It is composed of a pair of small gap pieces 16 forming a part, and these small gap pieces 16 face each other. The mounting piece 3 is plated, and a pin 4 for pivotally supporting the leg portion 5 is fixed through one pair of small gap pieces 16 at one end portion (lower portion in FIG. 1) along the longitudinal direction thereof. It In each of the small gap pieces 16 at the other end (the upper portion in FIG. 1) along the longitudinal direction of the mounting piece 3, a spring locking portion 17 which is a locking means on the mounting piece side and a spring locking portion 17 are free. Guide portions 18 formed at the end portions are respectively provided. The spring locking portion 17 is recessed outward when viewed from the facing surface side of each small gap piece 16, and the guide portion 18 is slightly expanded with its free end surface facing outward.

Reference numeral 30 in FIG. 4 denotes a partition wall to which the door 21 is attached, reference numeral 31 denotes a hinge for attaching the door 21 to the partition wall 30, and reference numeral 32 urges the door 21 in the closing direction. Door couzer, reference numeral 33 is a knob of the door 21.

According to the embodiment, the leg portion 5 is made of a plated iron pipe, and the end surface of the base end portion 5 a pivotally supported by the pin 4 is covered with the lid member 25 and the free end portion 5 b. A rubber cap 26 as a non-slip means is attached to the tip portion of the. Further, a single coil spring 27 is provided on both sides orthogonal to the swinging direction of the leg 5 at the base end 5a of the leg 5 slightly closer to the free end than the position pivotally supported by the pin 4. It is projected. The spring 27 serves as locking means on the side of the leg portion and elastically engages with the spring locking portion 17 of the small gap piece 26 when the leg portion 5 is swung to the other side of the mounting piece 3, It acts to stop the swing. As shown in the side view of the usage state of FIG. 6, the leg portion 5 is attached to the door 21 in the direction of the arrow C by the tip of the free end portion 5b coming into contact with the floor 23. In order to be able to resist the force, it is necessary for the bottom surface of the rubber cap 26 to come into contact with the floor 23 over a wide area, so that the leg portion 5 has its free end 5b substantially in contact with the floor surface. It is desirable to bend it so that it is almost upright.

A usage mode of the door stopper 1 as described above will be described.

The door stopper 1 attracts the magnet portion 2 to the inner surface of the door, which is opposite to the opening direction of the openable door 21, with the other side of the mounting piece 3 facing upward, and is fixed thereto. The proper fixing position of the door stopper 1 is such that the leg 5 swings to one side and the free end 5b thereof contacts the floor 23, and the lower end of the free end 5b is 90 ° to the floor. The height is suitable for forming a larger complementary angle (angle α in FIG. 6) close to 90 °, and is preferably closer to the anti-hinge of the door 1.

As shown in the side view of FIG. 7, when it is not necessary to operate the door stopper 1, the leg portion 5 is swung to the other side of the mounting piece 3 to move the single coil spring 27 to the small gap piece 16. The spring engagement portion 17 is engaged to cut off the contact with the floor 23.

As described above, the door stopper 1 opens the door 21 in the direction of arrow B in FIG. 4 when carrying in and out of luggage, and when the user wants to maintain the open state for a long time, the leg portion 5 is set to the above-mentioned state. Release from the locked state. As a result, the tip end surface of the leg portion 5 comes into contact with the floor 23 and acts as a tension bar of the door 21, and prevents the door 21 from moving in the direction of arrow C (see FIG. 4).

According to the present invention, the door stopper 1 is fixed to the proper position of the door 21 made of a magnetic material by the strong magnet portion 2, and the free end portion of the leg portion 5 does not slide on the floor 23. Since a reliable pulling action is provided, even if a person or article accidentally touches the door 21 or is hit by a strong wind, it is not automatically closed by the action of the door closer 32.

Since the door stopper 1 is attachable to and detachable from the door 21, it is normally fixed to the inner side surface of the door 21, but for an inward opening door, it can be used by changing it to the outer side surface of the door. To do.

In addition to the above-mentioned structure, the magnet body 8 may have a multi-polar attraction surface in addition to the single polarity attraction surface. In this case, the yoke (case 6) may be a non-magnetic material. Then, the cylindrical shaft 7 becomes unnecessary, and the mounting piece 3 is directly fixed to the yoke. In addition to the circular shape shown in the above embodiment, the magnet portion 2 may have a rectangular shape that is long in the up-down direction when in use.

[0021]

[Effect of device]

 As described above, the door stopper of the present invention can be attached to and detached from the door made of a magnetic material by a strong magnet portion, and is retracted and locked upward when not in use. Contact the floor with a tension bar to prevent the door from closing.

Therefore, even if the door is touched or is blown by the wind during the loading / unloading work of the luggage, the door is kept in the open state. As described above, the loading / unloading work is not temporarily interrupted.

When it is not necessary to operate it, the legs can be lifted up and locked, so that it does not interfere with the entrance and exit of ordinary people, and when it is not used for a long time, it can be removed from the door. It can also be removed. Since the magnet part is a ferromagnetic permanent magnet, it withstands long-term use.

Since the door stopper of the present invention is detachable, it can be fixed to either the front side or the back side of the door, and can be used not only for the outside opening door but also for the inside opening door.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a door stopper according to the present invention.

FIG. 2 is a partial cross-sectional view taken along section line II-II in FIG.

FIG. 3 is a partial rear view.

FIG. 4 is a plan view showing a usage state.

FIG. 5 is an enlarged cross-sectional view of a magnet part.

FIG. 6 is a side view of the operating state.

FIG. 7 is a side view when not in operation.

[Explanation of symbols]

 1 Door Stopper 2 Magnet Part 3 Attachment Part 5 Leg Part 8 Magnet Main Body 17 Spring Locking Part 21 Door 26 Rubber Cap 27 Single Coil Spring

Claims (1)

[Scope of utility model registration request] 1. A magnet unit including a magnet portion having one surface serving as an attracting surface, and a leg portion swingably supported by a mounting piece fixed to the other surface of the magnet portion via a pin. Has a magnet body made of a ferromagnetic material and a case in which the magnet body is housed and fixed. The leg portion is provided with a non-slip means at the free end portion. A door stopper, wherein locking means are formed so as to elastically engage each other when the parts swing to the other side orthogonal to the pin.