JP2004027552A - Door stop - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door stop for temporarily fastening and easily releasing a door, in the door stop for holding the door in a full opening position by attraction between a door side magnet and a plate composed of a magnetic substance rockingly arranged on a floor surface. <P>SOLUTION: This door stop has the magnetic substance plate vertically rockingly installed on a pedestal and the magnet fixed to a lower part of the door, and has a temporarily fastening mechanism for temporarily locking on the magnet by locking force for extracting the plate when the plate is attracted to the magnet. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to door stops. More specifically, a door stop that can fix the door in a fully open position by adsorbing a magnet on the door side and a plate made of a magnetic material that is swingably installed on the floor surface. The present invention relates to a door stop which can be easily stopped and released.
[0002]
[Prior art]
Conventionally, as shown in FIGS. 15 and 16, the door 50 or the knob 51 collides with a wall or furniture around the door 50, a cabinet 52, or the like due to opening and closing of the door 50, and a door stop 53 for preventing damage to these. Is provided on the floor 54 near the door 50.
[0003]
As the door stop 53, there is a door stop 53 including a base 55 screwed to a male screw (not shown) standing on a floor 54, and a buffer 56 fixed to an upper portion of the base 55.
[0004]
In order to keep the door 50 open, the U-shaped stopper 57 inserted into the base 55 is pulled out and engaged with the hook 59 of the hooked washer 58 provided on the side surface of the door 50. I try to stop.
[0005]
[Problems to be solved by the invention]
However, since the door stop 53 is always erected on the floor 54, if the door 50 is not fixed to the door stop 53, there is a possibility that the door 50 may be accidentally kicked on the door stop 53 while walking. .
[0006]
In addition, when moving the transported object, for example, the cabinet 52, it becomes an obstacle, and if the cabinet 52 collides with the door stop 53 by mistake, the cabinet 52 may be dented or the door stop 53 may be deformed. Furthermore, it was in the way when cleaning the floor.
[0007]
Further, since the conventional door stop 53 is always erected on the floor 54, foreign matters appear to protrude above the floor 54, which is not preferable in aesthetic appearance.
[0008]
On the other hand, various studies have been made on a door stop that can be moved out of the floor, and a door stop that uses a magnet has been known as a door stop that can be moved out of the floor. A door stop using a magnet described in Japanese Patent Publication No. 2990601 and Japanese Patent Application Laid-Open No. H10-1155139, for example, a method in which a magnetic plate mounted swingably on a floor is attracted to a magnet on the door side. Locks the door in the fully open position.
[0009]
However, since these door stops fix the door only by the attraction force of the magnet, the attraction force is weak even if the door is temporarily temporarily fixed to the fully open state or if the temporary fixing is released again. There is a problem that the temporary fixing of the door is insufficient.
[0010]
The present invention has been made to solve such a problem, and fixes a door at a fully open position by adsorbing a magnet on a door side and a plate made of a magnetic material swingably installed on a floor surface. An object of the present invention is to provide a door stop that can be easily fixed and released easily.
[0011]
[Means for Solving the Problems]
The door stop of the present invention includes: (a) a pedestal fixed to the floor surface,
(B) a door stop having a plate made of a magnetic material and attached to the base so as to be swingable up and down, and (c) a magnet fixed to a lower portion of the door,
(D) a member capable of pulling out the plate when the plate is attracted to a magnet. It is characterized by comprising a temporary fixing mechanism for temporarily locking to the magnet with a stopping force.
[0012]
The temporary fixing mechanism comprises a hook protruding upward, and elastic means for urging the hook upward,
Preferably, the plate is provided with a downwardly projecting projection for engaging with a hook of the temporary fixing mechanism.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, the door stop of the present invention will be described in detail with reference to the drawings. 1 is a perspective explanatory view showing an embodiment of a door stop according to the present invention, FIG. 2 is a side view of the magnet shown in FIG. 1, and FIG. 3 is a side view showing a state where the claw arm of the magnet shown in FIG. 4, FIG. 4 is a front view of the magnet of FIG. 3, FIG. 5 is a sectional view of the magnet of FIG. 1, FIG. 6 is a perspective view of the claw arm and the rotating shaft of FIG. 1, and FIG. FIG. 8A is a view of the pedestal viewed from above, FIG. 8B is a view of the plate viewed from above, and FIG. 8C is a view of the shaft holding plate viewed from above; Is a sectional view showing a state before the magnet is temporarily fixed to the magnet, FIG. 9 is a sectional view showing a state where the plate of FIG. 1 is temporarily fixed to the magnet, and FIG. 10 is a state where the plate of FIG. 1 is locked to the magnet. FIG. 11 is a cross-sectional explanatory view showing a mechanism for defining a rotation position of a claw arm using a torsion coil spring according to another embodiment of the door stop according to the present invention. FIG. 12 is an enlarged front view of a portion, FIG. 12 is a plan view of a fixing plate having a stopper according to still another embodiment of the door stop of the present invention, FIG. 13 is an explanatory view showing a state where a cam abuts on the stopper of FIG. 14 and FIG. 14 are (a) a front view and (b) a top view of the cam of FIG.
[0014]
The door stop shown in FIG. 1 is roughly composed of a main body portion 1 installed on a floor surface and a magnet 2 fixed to a door D.
[0015]
As shown in FIGS. 1 and 7, the main body 1 includes a pedestal 3 made of an engineering resin such as nylon or polyacetal or a zinc alloy fixed to the floor with screws or the like, and a plate made of a magnetic material such as iron. 4 is swingably attached. The method of installing the main body portion 1 is not particularly limited in the present invention, and may be installed on a floor surface as shown in FIG. 1 or may be embedded in an embedded hole formed in the floor.
[0016]
As shown in FIGS. 7A to 7C, the main body 1 includes a pedestal 3, a plate 4, and a shaft pressing plate 5.
[0017]
The plate 4 has a lower projection 7 (see FIGS. 7 and 9) which can be engaged with a hook 15 (see FIG. 5) of a temporary fixing mechanism 6 provided below the magnet 2 to be described later. Are projected downward.
[0018]
The lower protrusion 7 may be formed by folding the tip of the plate 4 toward the lower surface.
[0019]
Further, near the center of the plate 4, there is formed an engagement recess 9 which can be engaged with a claw portion 18a (see FIGS. 5 to 6) of a claw arm 18 of the lock mechanism 8 described later. As shown in FIG. 7 (b), the engaging recess 9 may be formed by recessing a part of the plate 4, or may be a through hole.
[0020]
The plate 4 is made of a magnetic material such as iron or steel. For example, as shown in FIGS. 7B and 8 to 10, one thin iron plate is pressed or two or more metal plates are pressed. Plates may be stacked. The shapes of the lower projection 7 and the engagement recess 9 of the plate 4 are not particularly limited in the present invention, and may be selected so as to correspond to the shapes of the hook 15 and the claw portion 18a. ) Can be employed.
[0021]
The pedestal 3 has a rectangular opening 3 a for accommodating the plate 4. The plate 4 is inserted into the opening 3a of the pedestal 3 from below, and the shafts 10 protruding from both sides of the rear end of the plate 4 are rotatably inserted into a pair of bearing recesses 3b opened downward.
[0022]
As shown in FIG. 7A, the pair of bearing recesses 3 b are closed by the shaft holding plate 5 fixed to the lower surface of the pedestal 3 by caulking or bonding, so that the shaft portion 10 is supported by the bearing of the pedestal 3. There is no fear of falling off from the recess 3b. Further, as shown in FIG. 7C, a protruding piece 5a is provided at the center of the shaft holding plate 5 so as to protrude forward. The protruding piece 5a prevents the plate 4 from dropping downward.
[0023]
As shown in FIGS. 7A and 8 to 10, on the lower surface of the pedestal 3, there is provided a contact portion 3 c which can contact the rear end of the plate 4 when the plate 4 collides with the magnet 2. Further, a screw (not shown) is inserted into the screw hole 3d near the rear side of the contact portion 3c. Therefore, the impact received by the plate 4 when colliding with the magnet 2 can be received by the screw inserted into the contact portion 3c and the screw hole 3d, and the shaft portion 10 of the plate 4 (see FIG. 7B) and the like can be received. Damage can be prevented.
[0024]
Moreover, an inclined portion 10a for regulating the swing angle of the plate 4 is formed on the shaft portion 10 of the plate 4 in a direction that rises toward the rear of the plate 4 (to the right in FIG. 7B). ing. Therefore, when the plate 4 swings up to a predetermined swing angle (for example, about 30 degrees), the inclined portion 10 a comes into surface contact with the lower surface of the pedestal 3, thereby accurately regulating the swing angle of the plate 4. be able to.
[0025]
As shown in FIGS. 1 and 5, the magnet 2 includes a case 11 fixed to the lower surface of the door D by a screw or the like, a magnet body 12 housed so as to be exposed from a lower surface opening 11 a of the case 6, It comprises a temporary fixing mechanism 6 for temporarily fixing the plate 4, a lock mechanism 8 for locking the plate 4, and a cap 13 for covering the upper surface of the case 11.
[0026]
The lower surface 11c of the case 11 is inclined so as to rise as it goes rearward, so that the plate 4 that has swung upward and the magnet main body 12 can come into close contact with each other.
[0027]
As shown in FIG. 5, the temporary fixing mechanism 6 projects upward to engage with the lower projection 7 (see FIG. 9) of the plate 4 to temporarily fix the plate 4 attracted to the lower surface of the magnet 2. It comprises a hook 15 and a compression coil spring 16 for urging the hook 15 upward. Temporarily fixing the plate 4 by the temporary fixing mechanism 6 allows the temporary fixing of the door D easily and reliably regardless of the strength of the attraction force of the magnet 2. With this temporary fixing mechanism 6, when the plate 4 is attracted to the magnet 2, the plate 4 can be temporarily locked to the magnet with a weak locking force capable of being pulled out.
[0028]
A vertically extending backbone 15a of the hook 15 is slidably guided in a vertical direction by a vertical groove 11e formed in a back plate 11d of the case 11. The compression coil spring 16 is sandwiched in a compressed state between a fixed plate 17 inside the case 11 and a spring retainer 15b protruding from the upper end of the spine 15a. Thus, the hook 15 is constantly urged upward by the urging force of the compression coil spring 16.
[0029]
Further, in the present embodiment, the tip of the plate 4 attracted to the magnet main body 12 collides with the spine 15a of the hook 15, so that the spine 15a absorbs the impact at the time of collision with the plate 4. It is preferable to use a synthetic resin or stick rubber or the like on the surface so that it can be formed. Similarly, the portion of the case 11 extending downward along the door D may be made of synthetic resin or rubber or the like may be attached to the surface so as to absorb the impact at the time of collision with the plate 4.
[0030]
As shown in FIG. 5, the lock mechanism 8 operates the plate 4 locked by the temporary fixing mechanism 6 from outside by a manual operation or the like with a locking force stronger than the locking force of the temporary fixing mechanism 6. The plate 4 is locked and released. As shown in FIGS. 1 to 6, the lock mechanism 8 of the present embodiment includes a claw arm 18 slidably provided on the case 11 of the magnet 2. By swinging the claw arm 18 by hand or foot, the claw portion 18a of the claw arm 18 is engaged with and disengaged from the engagement concave portion 9 of the plate 4, so that the door D can be firmly locked and unlocked. .
[0031]
Both ends of the claw arm 18 are fixed to a rotating shaft 19 rotatably supported inside the case 11 of the magnet 2. In the present embodiment, both ends of the rotating shaft 19 are formed in a non-circular cross-sectional shape such as a D-shape or a rectangle, and corresponding fitting holes are formed at both ends of the claw arm 18. The rotating shaft 19 can always co-rotate.
[0032]
As shown in FIGS. 5 and 6, a pair of cams 20 for defining the rotation position of the claw arm 18 are provided in a portion of the rotating shaft 19 inside the case 11. On the peripheral surface of the cam 20, concave portions 20a and 20b for defining the upper position and the lower position of the claw arm 18, respectively, and a convex portion 20c for defining the neutral position are formed. In addition, a contact member 21 that contacts the peripheral surfaces of the pair of cams 20 is provided above the cams 20. The contact member 21 is constantly pressed against the peripheral surface of the cam 20 by the urging force of a compression coil spring 22 disposed downward inside the cap 13 of the magnet 2.
[0033]
Therefore, when the cam 20 rotates as the claw arm 18 swings, the contact member 21 slides while constantly pressing the peripheral surface of the cam 20. At this time, the cam 20 stops when the contact member 21 is fitted into the concave portions 20a and 20b, but when the contact member 21 is in contact with a section between the paths from the concave portion 20a to the concave portion 20b. When the cam 20 is pushed by the contact member 21, the cam 20 rotates to a position where the contact member 21 fits into the concave portion 20a or the concave portion 20b. Thereby, when the claw arm 18 swings beyond the neutral position, the claw arm 18 can be urged to one of the upper position and the lower position.
[0034]
As another embodiment for defining the rotation position of the claw arm 18, as shown in FIG. 11, a pair of cams 31 are fixed to the rotation shaft 19, and one end 32 a of the torsion coil spring 32 rotates with the cam 31. The other end 32b of the torsion coil spring 32 is rotatably connected to the case 11 or the cap 13 of the magnet 2 (see FIGS. 1 and 5).
[0035]
The position of the cam 31 shown in FIG. 11 corresponds to the position above the claw arm 18, and the rotation position indicated by reference numeral 31 a when the cam 31 is rotated counterclockwise corresponds to the position below the claw arm 18. When the cam 31 is urged by the urging force of the torsion coil spring 32 to either the reference numeral 31 or 31a in FIG. 11, the claw arm 18 is urged to either the upper position or the lower position. The position where the cam 31 faces almost directly above corresponds to the neutral position of the claw arm 18, and the biasing force of the torsion coil spring 32 is maximized.
[0036]
As shown in FIG. 6, since the claw portion 18a of the claw arm 18 is bent in a direction away from the tip of the plate 4, the door D is opened while the claw arm 18 is at the lower position. Even when the claw portion 18a collides with the plate 4, the claw arm 18 can be jumped up to an upper position by the plate 4 dipping downward along the outer curved surface of the claw portion 18a. Note that the claw portion 18a of the claw arm 18 may be formed straight.
[0037]
Further, as shown in FIGS. 1 to 3, a pair of stoppers 23 project outward on both side surfaces of the case 11 of the magnet 2, so that the claw arm 18 is stopped at a predetermined lower position. Can be.
[0038]
The stopper 23 shown in FIGS. 1 to 3 is provided to protrude outside the case 11, but is not limited thereto, and a stopper may be provided inside the case 11. For example, as still another embodiment of the door stop, as shown in FIGS. 12 and 13, instead of the fixing plate 17 and the cam 20 (see FIGS. May be used in combination with a fixed plate 41 protruding upward and a pair of cams 43 each having a step portion 44 formed thereon. The stopper 42 is integrally formed with the fixed plate 41, and has a slope 42a.
[0039]
When the claw arm 18 comes to a predetermined lower position, as shown in FIGS. 13 and 14, the step portion 44 of the cam 43 comes into contact with the slope 42 a of the stopper 42, so that the claw arm 18 is set to the predetermined lower position. Can be stopped.
[0040]
Since the stopper 42 shown in FIGS. 12 and 13 is housed inside the case 11 of the magnet 2 and is not visible from the outside, the appearance of the whole magnet is improved.
[0041]
Next, an example of a method of using the door stop according to the present embodiment will be described with reference to FIGS. First, when the door D is temporarily fixed, the door D is opened while the claw arm 18 as shown in FIG. 8 is in the upper position, and the plate lying on the floor as shown in FIG. 4 rises by the attraction force of the magnet 2 and is attracted to the lower surface of the magnet 2. At the same time, the lower projection 7 provided at the tip of the plate 4 is engaged with the hook 15 of the temporary fixing mechanism 6, so that the door D can be temporarily and easily fixed. In order to release the temporary fixing of the door D, simply closing the door D as it is, the plate 4 easily comes out from the lower surface of the magnet 2 and the temporary fixing of the door D is released.
[0042]
On the other hand, when it is desired to firmly lock the door D in the open state, for example, when a strong wind is blowing, the claw arm 18 is further moved to the lower position by hand or foot from the temporarily fixed state of the door D shown in FIG. By doing so, the claw portion 18a of the claw arm 18 is engaged with the engagement concave portion 9, and the door D can be firmly locked in the open state. Further, when it is desired to release the lock of the door D, the claw arm 18 may be moved to the upper position again by hand or foot.
[0043]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, it is a door stop which can fix a door in a full open position by adsorb | sucking the magnet of a door side and the plate which consists of a magnetic body slidably mounted on the floor surface, Can be easily fixed and released.
[0044]
In addition, when the door stop is not used, the plate of the main body portion is substantially flush with the floor surface, so that it is possible to stably walk and move a transported object such as a cabinet.
[0045]
In addition, when the door is not fully opened, the plate is substantially flush with the floor, so that the floor around the door is flat and the appearance can be improved. Moreover, the exterior design around the entrance that makes use of the flat feeling of the floor surface becomes possible.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view showing one embodiment of a door stop of the present invention.
FIG. 2 is a side view of the magnet of FIG. 1;
FIG. 3 is a side view showing a state where a claw arm of the magnet of FIG. 2 is at a lower position.
FIG. 4 is a front view of the magnet of FIG. 3;
FIG. 5 is an explanatory sectional view of the magnet of FIG. 1;
FIG. 6 is a perspective view of a claw arm and a rotation shaft of FIG. 1;
FIGS. 7A and 7B are plan explanatory views of a main body part of FIG. 1, wherein FIG. 7A is a view of a pedestal viewed from above, FIG. 7B is a view of a plate viewed from above, and FIG. FIG.
FIG. 8 is an explanatory sectional view showing a state before the plate of FIG. 1 is temporarily fixed to a magnet.
FIG. 9 is an explanatory sectional view showing a state in which the plate of FIG. 1 is temporarily fixed to a magnet.
FIG. 10 is an explanatory sectional view showing a state in which the plate of FIG. 1 is locked by a magnet.
FIG. 11 is an enlarged front view of a main part of a mechanism for defining a rotation position of a claw arm using a torsion coil spring according to another embodiment of the door stop of the present invention.
FIG. 12 is a plan view of a fixing plate having a stopper according to still another embodiment of the door stop of the present invention.
FIG. 13 is an explanatory view showing a state in which a cam comes into contact with the stopper of FIG. 12;
14 (a) is a front view of the cam of FIG. 13 and FIG.
FIG. 15 is an explanatory view showing a fixed state of a conventional door.
FIG. 16 is an explanatory view showing a conventional door stop.
[Explanation of symbols]
1 body part 2 magnet 3 pedestal 4 plate

Claims (2)

(A) a pedestal fixed to the floor,
(B) a door stop having a plate made of a magnetic material and attached to the base so as to be swingable up and down, and (c) a magnet fixed to a lower portion of the door,
(D) A door stop provided with a temporary fixing mechanism for temporarily locking the plate with a locking force capable of pulling out the plate when the plate is attracted to the magnet. The temporary fixing mechanism comprises a hook protruding upward, and elastic means for urging the hook upward,
2. The door stop according to claim 1, wherein the plate is provided with a downwardly projecting projection for engaging with a hook of the temporary fixing mechanism.

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