JP2005213800A - Door stopper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door stopper which can catch a door so as to surely fix and hold it, which hardly generates an impact sound, which enables the use of a magnet with a relatively small magnetic force, and which enables a reduction in material cost and size. <P>SOLUTION: In this door stopper, a magnetically attracted plate 13 of a base part 12, which is mounted on a floor 19, is lifted by the magnetic force, and magnetically attracted by the magnet 2 and held by it, so that the magnet 2, which is attached to a catch part 1 mounted on the door 11, can inhibit the turning of the door 11 and make the door fixedly held in a prescribed position. A lock part 7, which is to be male-female-fitted into the catch part 1 and the plate 13, is provided. Additionally, a rubber O-ring (buffer) 5, which prevents the catch part 1 for holding the magnet 2 from directly colliding with the plate 13, is provided, so as to lessen an impact when the plate 13 falls, and a buffer plate 18 for deadening the impact sound is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a door stopper for fixing and holding an opened door at a predetermined position, and more particularly to a door stopper using magnetic force.

  Various door stoppers for fixing and holding the door in the open state have been proposed. Among them, among them, an attracting metal fitting with a permanent magnet attached to the lower end of the open side of the door, and the door unlocking position A locking metal fitting having a magnetic plate that can be turned only upward is provided, and the magnetic material plate is magnetically attached to the permanent magnet of the adsorption metal fitting to fix the door (for example, Patent Document 1, Patent Document) 2 and Patent Document 3). That is, there is a door stopper that uses the attractive force of a magnet.

Japanese Patent Laid-Open No. 11-350821 (page 2 to page 3, FIG. 1) Japanese Unexamined Patent Publication No. 2000-54714 (2nd page to 3rd page, FIG. 1) Japanese Patent Laid-Open No. 2002-147093 (2nd page to 9th page, FIG. 2)

That is, in the door stopper using the magnet as described above, the magnet and the magnetic body are arranged on the door side and the floor side, and when they are close to each other, both are attracted to hold the door. For this reason, there were the following problems.
(1) Since the locking force of the door depends on the magnetic strength of the magnet, a magnet corresponding to the holding force is required. In other words, a strong magnet is required to hold the door firmly.
(2) When an external force greater than the locking force is applied to the door (for example, when the user pulls the door unexpectedly or falls down or due to strong wind), the door may suddenly open, resulting in injury or damage There is.
(3) When the magnet attracts the magnetic plate or when the magnetic plate is removed from the magnet, an impact sound (noise) is generated by contacting the base.
Moreover, there existed the following problems as a problem on the attachment structure of the magnet to a catch part.
(4) If the magnet mounting process is not complete, the magnet may fall off. Therefore, as a means for inserting and fixing a magnet in the catch part body, the periphery of the insertion recess is pressed and deformed by a press, but the catch part is aesthetically baked, but in this case, When the magnet is heated, the magnetic force is remarkably lowered, so that the fixing operation of the magnet is usually performed after baking. Therefore, when pressing, the coated surface is often scratched by the pressure, and it takes time and effort to regenerate the scratched product, which is discarded and uneconomical.
(5) Further, as a problem of appearance, when attaching the catch body to the door, the mounting screw is exposed, so the appearance is impaired.

  Therefore, in the present invention, the magnet attached to the catch portion attached to the door raises the magnetic plate of the base portion attached to the floor by magnetic force, and the magnetic plate is magnetically held by the magnet. In the door stopper that prevents the door from rotating and is fixedly held at a predetermined position, the first feature is that a lock portion for fitting the male and female to the catch portion and the magnetic plate is provided. In addition, a second feature is that a buffer body that prevents a direct collision between the magnet holder and the magnetic plate provided in the catch portion is provided. Furthermore, a third feature is that a shock absorber is provided in the base portion to mitigate the impact when the magnetic material plate falls down and to mute the collision sound. Furthermore, a fourth feature is that the catch portion has a divided structure of a magnet holder and a cover body covering the magnet holder.

The present invention has the following excellent effects.
(1) Since the lock portion for male-female fitting is provided on the catch portion and the magnetic plate, not only the door can be caught with a simple structure, but also it can be securely fixed and held safely.
(2) Little impact noise (noise) is generated when the door is locked and unlocked.
(3) When the door is locked to the catch portion, the door or door knob is pressed and unlocked by stepping on the pressing piece of the plate with the toe, so that both users change their posture (for example, crouch) It can be operated without taking any posture.
(4) Since the base portion is divided into the magnetized plate portion and the buffer plate, the degree of freedom of the mounting position is increased. (By changing the thickness of the buffer plate, it is possible to supplement the lack of adjustment of the catch position).
(5) The appearance is improved by dividing and covering the catch portion. In addition, even if scratches or breakage occurs due to use, it is only necessary to replace the cover, and the attachment is simple and economical.
(6) Since the magnetic force of the magnet only needs to attract the plate, a magnet having a relatively small magnetic force can be used, and the material cost can be reduced and the door stopper device as a whole can be reduced in size.

Next, embodiments of the present invention will be described based on examples shown in the drawings.
FIG. 1 is a perspective view showing a door stopper according to the present invention, FIG. 2 is a side view showing the structure of a catch portion body, (b) is a view taken along line A-B in FIG. (A) is a view taken along line C-D in FIG. 3, FIG. 3 is a side view showing a state where the catch portion is attached to the door, (b) is a view taken along line E-F in (a), ( c) is a partially enlarged view of (a), FIG. 4 is an exploded perspective view of the base portion, FIG. 5 is a plan view of the support shaft portion of the plate, (a) is a partially cutaway plan view, and (b) is a view of (a). GH line sectional view, (c) is a GH line sectional view in which the lower reinforcing plate of the support bearing part of (a) is omitted, FIG. 6 is an explanatory view showing the movable state of the door stopper, and FIG. 7 is FIG. FIG. 8 is an exploded side view showing the catch portion, FIG. 9 shows a state where the catch portion is attached to the door, (a) is a side view, (b) is a front view, and (c). Is a plan view, Figure 10 is a catch Buffers enlarged sectional view showing another embodiment of the body, FIG. 11 is a partial plan sectional view showing the attachment positions of the base body to the floor.

  As shown in FIGS. 1 and 2, the door stopper according to the present invention is provided on a catch portion 1 that is attached to a door 11 with a mounting screw 10 via a rubber shock absorber (buffer) 8, and a floor surface 19. It is comprised from the base part 12 to which it is attached. Here, as shown in FIG. 11, the base portion 12 is usually a predetermined position of a gap L1 generated between the door knob 11a and the wall W of the door 11, that is, below the knob. The pressing pedal 14 is installed in a range where the user can press with the toe.

  The catch portion 1 is integrally formed with a rectangular mounting flange 1a projecting left and right and a protruding portion 7 projecting downward, and the catch surface 6 is inclined downward with respect to the mounting flange 1a. Is provided. Further, the left and right flanges 1a are respectively provided with long holes 9 for screwing in the vertical direction so that the attachment position in the vertical direction of the catch part 1 to the door 11 can be finely adjusted.

  A cylindrical recess 3 for fitting the cylindrical permanent magnet 2 is formed on the catch surface 6, and a rubber O-ring 5 as a shock absorber is fitted on the outer peripheral surface thereof. An annular recess 4 is formed. Here, as shown in FIG. 3C, if the opening width d2 of the annular recess 4 is made smaller than the wall thickness d1 of the O-ring 5, the O-ring 5 once fitted in the annular recess 4 is It will not drop out under normal use conditions.

  The lock portion 7 of the catch portion 1 is formed in a substantially triangular claw shape including an inclined surface 7 a inclined in a direction opposite to the inclination direction of the catch surface 6 and a perpendicular surface or an acute angle surface 7 b with respect to the catch surface 6. The buffer body 5 is not limited to the O-ring shape, and a desired effect can be achieved even if a spherical or columnar rubber 4a or a rod-shaped rubber 4b as shown in FIG. . However, in the case of the O-ring shape, since the contact area with the plate 13 to be described later is widened, there is an advantage that there is little damage and deterioration is delayed. Needless to say, these cushions are also suitable for materials other than rubber, such as urethane and soft plastic.

  That is, the attachment position of the O-ring 5 is not limited as long as it can be attached at a position where it can be prevented from colliding with the catch portion 1 before the magnetized plate 13 described later is magnetically attached to the catch portion 1 by the magnetic force of the magnet 2. Good, material and size are arbitrary.

  After the magnet 2 is fitted into the cylindrical recess 3, as shown in FIG. 3B, the entrance periphery 3a of the cylindrical recess 3 is crushed and deformed by several presses or the like, and the magnet 2 does not fall off. To fix. In this case, it may be directly attached using an adhesive. The tip of the catch portion 1 is chamfered (1c) as shown in FIG. 3C, and when the magnetized plate 13 is magnetized to the catch portion 1, the magnetized plate 13 is ahead of the O-ring 5. In addition, the occurrence of a collision sound is prevented by not contacting the tip of the catch portion 1.

  The magnetized plate 13 is inserted into the plate housing hole 15 of the base main body 12 from below, and the lower reinforcing plate 17a of the support bearing portion 17 is brought into contact with the base main body lower buffer 18 fitted in the reinforcing plate inserting recess 17b. It is fixed on the floor surface 19 with mounting screws 21. In addition, the pressing plate 14 for stepping is integrally provided in the magnetizing plate 13 so as to extend to the side thereof, and unlocking can be performed by stepping on the pressing pedal 14 of the magnetizing plate 13 with a toe. The user can operate without changing the posture (for example, taking a posture of crouching). As a matter of course, the mounting position of the pressing pedal 14 to the magnetized plate 13 is reversed depending on the opening direction of the door.

The base end 16 of the magnetized plate 13 is formed in a semicircular arc shape so that it can be easily rotated.
The thickness L7 of the upper portion 17c of the support receiving portion 17 is better as long as the plate supporting shaft 16 and the supporting shaft receiving portion 17 are strong enough not to deviate when the magnetized plate 13 is raised. Of course, since the thickness of the base main body 12 also becomes thin, it can be attached to a relatively low position from the floor surface 16.

  A cut portion 17d that is inclined inward is formed on the flange portion 17c of the support receiving portion on the support receiving portion 17 side of the magnetized plate storage port 15, so that the magnetized plate 13 can be easily erected. Here, the base main body lower cushioning plate 18 is provided with a reinforcing plate insertion recess 17b, and the support bearing portion lower reinforcing plate 17a is fitted therein. When the cushioning material is excellent in wear resistance, the base body 12 is directly joined by omitting the support bearing lower reinforcing plate 17a and the reinforcing plate fitting recess 17b as shown in FIG. 5 (c). It may be installed on the floor surface 19.

  As shown in FIG. 6A, when the door 11 is opened and the door catch portion 1 comes close to the base body 1 fixed to the floor surface 19 and reaches directly above, it is fitted to the catch portion body 1. The magnetized plate 13 is magnetized by the magnet 2 and stands up (b). When the door 11 is further opened and moved, the tip 13b of the magnetized plate 13 moves while sliding on the inclined surface 7a of the lock claw 7, and the lock claw 7 is moved to the notch 13a of the magnetized plate 13. Locked. In this case, as shown in FIG. 7, the relationship between the lateral width L2 of the opening 1b of the mounting flange 1a and the lateral width L3 of the plate 13 is L2> L3, the notch width L6 of the plate 13 and the length of the lock claw 7 The ratio of L4, the buffer 8 and the gap L5 between the tips of the plates 13 is L6> L4 + L5.

Next, another embodiment of the present invention will be described.
As shown in FIGS. 8 and 9, the catch portion 1 is formed by being divided into a catch portion main body 22 into which a magnet 25 is loaded and a cover 31 covering the catch portion main body 22. At the lower end of the cylindrical magnet insertion opening 26 of the catch portion main body 22, a locking collar portion 26 a that slightly protrudes inward is provided. Here, the cover 31 is detachably attached to the catch portion main body 22 by means of attachment screws 34, but the diameter of the through hole 33 formed in the side surface of the cover 31 is larger than the screw head diameter of the attachment screw 34 and the attachment screw 34. The washer is formed with a sufficient margin to fit the screw head, is formed to a depth that conceals the screw head, and is provided in a range where the through hole 33a of the mounting screw 34 can be formed. That is, by providing the stepped screw hole, the mounting screw 34 is concealed and the appearance is improved. In addition, about the (b) figure of FIG. 9, and the (c) figure, the detailed structure of the catch part main body 22 was abbreviate | omitted for convenience.

  A female screw 27 corresponding to the mounting screw 34 is formed in the catch part body 22. A play is provided in the gap between the cover 31 and the catch recess main body 22 and the fitting recess 31a, and a circular shape for pressing the magnet 25 downward is provided at a position corresponding to the upper portion of the magnet 25 of the fit recess 31a. A convex portion 32 is provided. In this case, it goes without saying that the diameter of 32 is smaller than the diameter of the magnet 25. In addition, the front end portion of the cover 31 is provided with a tip cut portion 22a on the catch portion main body 22 and is attached so as to be higher than the front end portion of the catch portion main body 22. When the damage and the magnetized plate 13 are magnetized, it is possible to prevent the collision sound from being generated by contacting the tip of the cover 31 before the O-ring 24.

  The screwing direction of the mounting screw 34 is preferably provided in the direction of the floor 19 or the door 11. Thereby, the magnet 25 is not only pressed by the convex portion 32 of the cover 31 but also the cover 31 can be aligned with the catch portion main body 22.

  The cover 31 and the catch portion main body 22 may be provided with projections and depressions so that the male and female are fitted, or one of the cover 31 and the catch portion main body 22 may be provided with a claw portion and the other provided with a locking portion. Further, as shown in FIG. 10, the buffer body is attached by providing a tapered hole 36a in the catch portion lower part 36, for example, pressing the trapezoidal buffer body 35 with a convex portion 37a of the cover body 37. You may make it do.

  Furthermore, the surface of the plate 13 should be subjected to surface treatment such as plating to reduce rust prevention and friction. Of course, for safety reasons, the corners should be rounded for aesthetic reasons.

  The door stopper according to the present invention can be accidentally kicked while walking, can safely move a transported object such as a cabinet, and can improve the beauty of the door periphery.

It is a perspective view which shows the door stopper which concerns on this invention. (A) which shows the structure of a catch part main body is a side view, (b) is the AB arrow view of (a), (c) is the CD arrow view of (a). (A) which shows the state which attached the catch part to the door is a side view, (b) is the EF arrow directional view of (a), (c) is the partially expanded view of (a). It is a disassembled perspective view of a base part. (A) which shows the spindle part of a plate is a partially cutaway plan view, (b) is a sectional view taken along the line GH of (a), and (c) is a lower reinforcing plate of the bearing part of (a). It is a GH line sectional view. It is explanatory drawing which shows the movable state of a door stopper. It is the IJ line arrow directional view of FIG. It is a disassembled side view which shows a catch part. (A) which shows the state which attached the catch part to the door is a side view, (b) is a front view, (c) is a top view. It is a principal part expanded sectional view which shows the other Example of the buffer body of a catch part. It is a partial plane sectional view which shows the attachment position of the base main body to a floor.

Explanation of symbols

1 Catch section (magnet holder)
1a Mounting hook 1b Mounting hook 1c Catch tip (cut)
2 Magnet 3 Cylindrical recess (Magnet fitting part)
3a Pressed portion around the cylindrical recess entrance 4 O-ring insertion hole 4a Spherical or columnar rubber (buffer)
4b Stick rubber (buffer)
5 Rubber O-ring (buffer)
6 Lower surface of the catch portion 7 Lock portion 7a Inclined surface 7b of the lock portion Right angle surface or acute angle surface with respect to the catch surface of the lock portion 8 Buffer plate 9 between the catch portion and the door 9 Mounting screw hole of the catch portion (long hole)
9a Buffer plate mounting screw hole (long hole)
DESCRIPTION OF SYMBOLS 10 Catch part installation screw 11 Door 11a Door knob 12 Base main body 13 Magnetic attachment plate 13a Notch of magnetic attachment plate 13b Tip of magnetic attachment plate 14 Foot pedal pressing pedal 15 Magnetic attachment plate storage port 16 Magnetic attachment plate support shaft 17 Reinforcement plate 17b of the bearing portion 17a support bearing portion Insertion recess 17c of the reinforcement plate Cut portion of the flange portion 17d support bearing portion of the support bearing portion (inclined surface)
18 Base buffer 19 Floor 20 Base body mounting screw hole 20a Base buffer mounting screw hole 21 Base body mounting screw 22 Catch body (magnet holder)
22a tip cut part 23 Rubber O-ring insertion hole 24 O-ring (buffer)
25 Magnet 26 Cylindrical recess (magnet fitting part)
26a Lower end flange portion 27 of cylindrical recess Female screw hole 28 of cover main body Mounting screw 29 of catch main body Buffer plate 29a buffer screw mounting screw hole (long hole) between catch main body and door
30 Catch part mounting screw hole (long hole)
31 Cover body 31a Fit recess 32 with catch body 32 Press projection 33 Screw concealment hole 33a Screw insertion hole 34 Cover mounting screw 35 Buffer 36 Lower catch portion 36a Tapered hole 37 Cover body 37a Press projection W Wall L1 Wall-to-door gap L2 Width of opening part of mounting flange L3 Width of magnetized plate L4 Length of lock part L5 Gap between magnetized plate and buffer L6 Length of notch of magnetized plate L7 Thickness of flange of support bearing part d1 Thickness diameter of O-ring d2 Opening width of annular recess

Claims (4)

The magnet attached to the catch attached to the door lifts the magnetic plate of the base attached to the floor by magnetic force, and the magnetic plate is magnetically held by the magnet, thereby rotating the door. The door stopper is configured to be provided with a locking portion that fits between the catch portion and the magnetic material plate in a male and female manner. 2. The door stopper according to claim 1, further comprising a buffer body that prevents a direct collision between the magnet holder and the magnetic plate provided in the catch portion. The door stopper according to claim 1 or 2, wherein the base portion is provided with a buffer body that alleviates an impact when the magnetic material plate falls and silences a collision sound. The door stopper according to any one of claims 1 to 3, wherein the catch portion is divided into a magnet holding body and a cover body covering the magnet holding body.

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