JP2003138825A - Door stopper and fitting equipped with the door stopper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door stopper which protects a hinge thereof by alleviating impact force even if a door is opened with excessive force, and can employ a door hinge which is thin in thickness, low in cost, and formed of any type of material, and to provide a fitting equipped with the door hinge. SOLUTION: According to the door stopper, an arm stay 11 has a plurality of projections 15 projecting from a bottom surface 11b near a tip a1 thereof at an interval. A slide bar 12 has a roller 23 rotatably arranged therein with play near one end b1 thereof, which roller 23 is energized by a leaf spring 25 toward the bottom surface of the arm stay. Therefore, even if the door bursts open with excessive force, when the one end of the slide bar approaches the tip of the arm stay, the roller runs over the projections by resisting the strong urging force of the leaf spring and surmounts the projective obstacles one by one before the slide bar continuously slides to fully open the door. During the sliding, by intermittently receiving the strong resistance, the slide bar stepwise reduces its sliding speed, which leads to alleviation of load transferred to the hinge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door stopper that holds a fully opened position of an indoor door or the like when it is fully opened to a desired angle. Particularly, among such door stoppers, an arm stay having a grooved cross section is provided. The present invention relates to a retractable door stopper in which a slide bar is slidably inserted and connected, and a fitting including the door stopper.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 13, a door stopper of this type generally has a structure in which a slide bar 2 is slidably inserted and connected to an elongated arm stay 1 having a groove-shaped cross section. The base end 1a of the arm stay 1 is attached to the upper frame of the door support frame 3, while the one end 2a of the slide bar 2 is attached to the upper end of the door 4, so that the entire length can be freely changed according to whether the door 4 is opened or closed. The door 4 can be opened and closed to adjust the opening degree of the door 4. Also, the door stopper is the door 4
When fully opened, the slide bar 2 is prevented from coming off from the arm stay 1 by an appropriate retaining mechanism 5, and the fully opened position of the door 4 is maintained.
In addition, reference numeral 6 in the drawing is a hinge as a door mounting member.

[0003]

By the way, conventionally,
If the door 4 is inadvertently opened with an excessively strong force, when the door stopper extends to the maximum and locks the opening of the door B, a large shock is rapidly transmitted to the hinge 6 via the door stopper, and the hinge 6 is released. Since it is easily twisted and damaged, in order to prevent this, a relatively thick metal hinge with high strength is used as a door mounting fitting.

However, conventionally, there has been a problem that if a large number of metal hinges having such a thick wall and a high rigidity are manufactured, the cost becomes significantly higher.

Therefore, an object of the present invention is to protect the hinge by absorbing the impact force even if the door is opened with an excessively strong force, and it is possible to use an inexpensive door hinge regardless of material. (EN) Provided is a door stopper and a fitting including the door stopper.

[0006]

In order to achieve the above object, the invention according to claim 1 is such that a slide bar 12 is slidable on an arm stay 11 having a groove-shaped cross section, for example, as in the following embodiments. Roller 2 which is inserted into and connected to the slide bar 12 and is rotatably held at one end b1 side of the slide bar 12.
3 is urged by a spring urging means such as a leaf spring 25 to press against the bottom surface 11b of the arm stay 11, and when the door B is fully opened, the roller 23 is moved to the arm stay 11
It is a door stopper 10 that releasably and elastically attaches to the front end portion a1 of the door to hold the fully open position of the door B. When the slide bar 12 is slid, the pressing force of the spring biasing means is resisted. Then, the plurality of projections 15 over which the roller 23 rides ...
Are provided near the tip a1 of the arm stay 11 at intervals in the length direction.

Therefore, in the present invention, even if the door B is inadvertently opened by receiving an excessively strong external force, the slide bar 12 remains as it is when the one end b1 approaches the tip a1 of the arm stay 11. In order to slide until the door B is fully opened, the roller 23 overcomes the strong pressing force of the spring urging means, and still rides on the projections 15 ..., Overcoming these convex obstacles one by one. Not
Meanwhile, the sliding speed of the slide bar 12 is gradually reduced by receiving a strong resistance intermittently. As a result, the strong impact force received by the door B is buffered through the door stopper 10,
The impact force weakens the load applied to the door hinge abruptly, and it is possible to prevent the hinge from being twisted or damaged due to the load.

According to a second aspect of the present invention, as in the following embodiment, for example, in the door stopper according to the first aspect, the height of the plurality of protrusions 15 ... It is characterized in that it is formed so as to be gradually higher as it approaches a1.

According to a third aspect of the present invention, an arm stay 11 having a groove-shaped cross section is used, for example, as in the following embodiments.
The slide bar 12 is slidably inserted into and connected to the roller 23, and the roller 23, which is rotatably held at the one end b1 side of the slide bar 12, is urged by a spring urging means such as a leaf spring 25. A door stopper that presses against the bottom surface 11b of the stay 11 and fully opens the door B so that the roller 23 is releasably elastically attached to the tip end a1 of the arm stay 11 to hold the fully open position of the door B. 10, when the slide bar 12 is slid, the projection 15 which the roller 23 rides over against the pressing force of the spring biasing means.
Is provided near the tip portion a1 of the arm stay 11, and the protrusion 15 is formed in a convex shape long in the sliding direction of the slide bar 12.

According to a fourth aspect of the present invention, for example, as in the following embodiment, in the door stopper according to the third aspect, the long convex protrusion 15 and the tip a1 of the arm stay 11 are provided. It is characterized in that a gradient 31 that gradually increases as it approaches is provided.

According to a fifth aspect of the present invention, an arm stay 11 having a groove-shaped cross section is used, for example, as in the following embodiments.
The slide bar 12 is slidably inserted into and connected to the roller 23, and the roller 23, which is rotatably held at the one end b1 side of the slide bar 12, is urged by a spring urging means such as a leaf spring 25. A door stopper that presses against the bottom surface 11b of the stay 11 and fully opens the door B so that the roller 23 is releasably elastically attached to the tip end a1 of the arm stay 11 to hold the fully open position of the door B. 10, when the slide bar 12 is slid, the projection 15 which the roller 23 rides over against the pressing force of the spring biasing means.
Is provided, and the projection 15 is formed into a plate piece with a non-metallic member and is fitted to the arm stay 11 near the front end portion a1.

According to a sixth aspect of the present invention, as in the following embodiment, for example, in the door stopper according to the fifth aspect, the plate piece-shaped projection 15 approaches the tip end a1 of the arm stay 11. Slope 33 that gradually increases in accordance with
Is provided.

According to a seventh aspect of the present invention, as in the following embodiments, for example, in the door stopper according to the fifth or sixth aspect, the plate piece-like protrusion 13 is formed with irregularities on its surface. It is characterized by

The invention according to claim 8 is, for example, as shown in the following embodiment, in which the arm stay 11 having a groove-shaped cross section is used.
The slide bar 12 is slidably inserted into and connected to the roller 23, and the roller 23, which is rotatably held at the one end b1 side of the slide bar 12, is laterally biased by a spring biasing means such as a torsion coil spring 45. When the door B is fully opened by pressing against one of the bent side pieces 11a of the arm stay 11, the roller 23 is elastically attached to the tip end a1 of the arm stay 11 so as to be detachable. A door stopper 10 for holding the fully open position of B, wherein the slide bar 1
When 2 is slid, a plurality of projections 15 that the roller 23 rides against against the pressing force of the spring urging means are spaced toward the arm stay tip a1 of the one bent side piece 11a. It is characterized by being provided separately.

According to a ninth aspect of the present invention, as in the following embodiment, for example, in the door stopper according to the eighth aspect, the height of the plurality of protrusions 15 ... It is characterized in that it is formed so as to be gradually higher as it approaches a1.

A fitting according to a tenth aspect of the present invention is characterized by including the door stopper according to any one of the first to ninth aspects, for example, as in the following embodiments.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing a structure of a main part of a door stopper 10 according to the present invention, and FIG. 2 is a plan view of the door stopper. The door stopper 10 includes a stainless steel arm stay 11 and a slide bar 12, respectively. The arm stay 11 is formed by bending it into a flat tub shape having a groove shape in cross section, and has both bent side pieces 11a near the tip a1.
In addition, the same butting step portion 13 for preventing slipping out is provided.

Further, the arm stay 11 has a tip portion a1.
As shown in FIG. 3 (A), three protrusions 15 ... Are provided upwardly at intervals along the length direction on the bottom surface 11b near the side. As shown in FIG. 4, the projections 15 may be formed such that the projection height gradually increases as the tip end a1 is approached. In the illustrated example, the three protrusions 15 ... Are provided at equal intervals, but two or four or more protrusions may be provided, or they may be provided at unequal intervals. In the illustrated example, the protrusions 15 ... Are integrally formed by extruding a part of the bottom surface 11b upward, but separate protrusions such as quenching pins may be fixed to the bottom surface 11b to project. The shape of each of the projections 15 is not limited to a round shape as shown in the drawing, but may be formed in a horizontally long convex shape that crosses the bottom surface 11b in the width direction.

A resin sound deadening member 16 is fitted into the groove 14 of the base end portion a2 of the arm stay 11 having the above-described shape, and the mounting bracket 1 is attached by a mounting shaft penetrating the sound deadening member 16.
7 is rotatably attached to the base end portion a2. On the other hand, a resin guide member 18 through which the slide bar 12 is inserted is fitted into the groove 14 of the tip portion a1. In addition,
Although not shown, the arm stay 11 described above has a structure in which the upper side thereof is covered with an exterior cover plate.

On the other hand, the slide bar 12 is formed in the shape of a strip-shaped flat plate, slidably inserted into and connected to the arm stay 11, and the entire door stopper 10 is freely extended and contracted in accordance with the length of pulling out. It can be adjusted.

The slide bar 12 has a mounting bracket 19 rotatably supported at the other end b2 with respect to the one end b1 on the front end side, and a resin retaining member 20 at the one end b1.
Has been fitted. Then, as shown in FIG. 2, when the slide bar 12 is housed in the arm stays 11 and overlapped with each other, the sound deadening member 16 and the resin members of the retaining member 20 come into contact with each other, so that the sliding bar 12 is removed without generating a metallic sound. It has a structure to stop it. Further, an abutting piece 21 is fixed to the slide bar 12 adjacent to the other end portion b2 side of the retaining member 20. Then, when the slide bar 12 is pulled out from the inside of the arm stay 11, the abutment piece 21 comes into contact with the abutting step portion 13 to prevent the slide bar 12 from coming out of the arm stay 11.

Further, the slide bar 12 has a contact piece 21.
The square hole 22 is provided near the other end b2 of the square hole 2
A quenched small-diameter roller 23 is rotatably fitted in the inside of the bearing 2. On the other hand, between the roller 23 and the contact piece 21, one end of the leaf spring 2 is fastened to the upper surface 12a in the figure by a rivet 24.
5, the other end of the leaf spring 25 is strongly pressed against the roller 23. Then, the roller 23 is constantly urged by the leaf spring 25 and pressed against the bottom surface 11b of the arm stay 11. The leaf spring 25 may be fixed with a screw,
It may be fixed by spot welding.

Now, the door stopper 10 having the above-mentioned structure
In this example, as shown in FIG. 5, the mounting bracket 17 of the arm stay 11 is screwed to the upper frame portion of the door support frame A, while the mounting bracket 19 of the slide bar 12 is screwed to the upper end portion of the door B. Stop and attach between door support frame A and door B. Reference numeral 30 in the figure is a hinge of the door mounting bracket. As the hinge 30, a relatively thin-walled and lightweight hinge such as an iron hinge or an aluminum hinge is used. It does not need to be excessively strong, and for example, a resin hinge can be used.

The door stopper 10 having the above structure is
When the door B is opened, the arm stay 11 is accordingly moved.
The slide bar 12 is slid and pulled out against the door B
It expands according to the opening. At this time, the roller 23 resists the pressing force of the leaf spring 25 and causes the bottom surface 11 of the arm stay 11 to move.
Move while rotating on b.

After that, when one end portion b1 of the slide bar 12 approaches the tip end portion a1 of the arm stay 11, the roller 23 abuts on the projection 15 ... Leading end, but when the slide bar 12 is further pulled out, the leaf spring 25 of the leaf spring 25 moves. The last protrusion 1 after overcoming each protrusion 15 in sequence against the pressing force,
5 and the tip portion a1 of the arm stay 11 are releasably elastically attached. At about the same time, the contact piece 21 of the slide bar 12 contacts the butting step portion 13 to stop the sliding of the slide bar 12, prevent the slide bar 12 from coming out of the arm stay 11, and at this position. Door B is fully opened.

Therefore, when the door is fully opened, the door stopper 10 does not close the door B even if the door B receives an external force such as being blown by the wind or lightly contacting an obstacle. Hold in. On the other hand, when closing the door B, the slide bar 12 slides in the opposite direction and is housed in the arm stay 11 in accordance with the door rotating operation, and the door stopper 10 is gradually shortened according to the opening degree of the door B. To do. At this time, similarly, the roller 23, while rotating against the pressing force of the leaf spring 25, successively rides over the projections 15 ... And moves on the bottom surface 11b of the arm stay 11 until the door B is closed.

By the way, the door B may be opened carelessly by receiving an excessively strong external force. However, in the present invention, even if the door B is opened excessively, the slide bar 12 slides until the door B is fully opened when the one end b1 approaches the tip a1 of the arm stay 11. 3 (B), (C), and (D) in order, the roller 23 overcomes the strong pressing force of the leaf spring 25 and rides on the protrusions 15 ... You have to get over each one,
The sliding speed of the slide bar 12 is reduced stepwise by receiving a strong resistance intermittently.

As a result, according to the present invention, the strong impact force received by the door B is buffered through the door stopper 10, and the impact force weakens the load applied to the hinge 30, which causes the hinge 30 to be twisted. It is possible to prevent damage.

Now, in the above-mentioned illustrated example, the projection 15 is
A plurality of arm stays 11 are juxtaposed on the bottom surface 11b of the arm stay 11 near the tip a1. However, in the present invention, as shown in FIG. 6 and FIG. 7A, for example, the protrusion 15 may be provided on the bottom surface 11b in a slender convex shape in the sliding direction of the slide bar 12. It is preferable that the elongated convex projection 15 be provided with a slope 31 whose projection height gradually increases as it approaches the tip a1 of the arm stay 11. Further, although not shown, it is preferable to form appropriate protrusions and depressions on the surface of the elongated protrusions 15. In the illustrated example, the elongated convex protrusion 15 is
A part of the bottom surface 11b is extruded upward to be integrally formed, but it may be formed by cutting and raising. Further, an elongated separate protrusion such as a hardened bar is fixed to the bottom surface 11b and protruded. You can also do it.

In this other example, even if the door B is opened excessively vigorously, the slide bar 12 slides until the door B is fully opened when the one end b1 approaches the tip a1 of the arm stay 11. To move
As shown in (B) and (C), the roller 23 is
While overcoming the strong pressing force of 5, the longitudinal projection 15
It is necessary to climb over the slope 31 of the vehicle and ride over this long convex obstacle, during which the sliding speed of the slide bar 12 is drastically reduced due to continuous strong resistance, and as a result, the hinge 30 The load transmitted to is weakened.

Next, the door stopper 10 according to the present invention is
The projection 15 is formed in a plate shape with a non-metal member such as a resin material, and the plate piece projection 15 is fitted to the bottom surface 11b of the arm stay 11 as shown in FIGS. 8 to 10, for example. You can also

In this illustrated example, the plate piece-shaped projection 15 is
The resin is molded into a substantially I shape, and fitting convex portions 15a, 15a are provided on the lower back surfaces of both ends in the figure. On the other hand, the arm stay 11 has a fitting protrusion 15a
Fitting holes 32, 32 are provided corresponding to 15a. Then, the fitting projections 15a, 15a are fitted into the fitting holes 32, 32, and the plate piece-shaped projection 15 is attached to the tip end a of the arm stay 11.
It fits close to 1. In addition, the plate-shaped projection 15 has
It is preferable to provide a gradient 33 on the front surface side, which gradually increases as it approaches the tip portion a1 of the arm stay 11. Further, the plate-shaped projections 15 are provided with recesses 15 on the surface with a space.
It is more preferable to provide b and to form the surface in an uneven shape.

By the way, in this other example, even if the door B is opened with excessive force, the slide bar 12 has one end b.
When 1 approaches the front end portion a1 of the arm stay 11, the roller 23 can be slid until the door B is fully opened.
However, while overcoming the strong pressing force of the leaf spring 25, it is necessary to climb over the slope 33 of the plate piece-like projection 15 having unevenness on the surface and overcome this convex obstacle, and during that time, it is continuously strong. The sliding speed of the slide bar 12 is dramatically reduced due to the resistance, and as a result, the load transmitted to the hinge 30 is weakened. Further, since the plate-shaped projection 15 is made of resin, it is possible to suppress the generation of noise such as annoying metal noise when the roller 23 gets over the projection.

Therefore, in the illustrated example, the plate piece-shaped projection 15
Although a resin molded product is used as the above, in the present invention, a rubber molded product or the like may be used as long as it is a non-metal member having a sound deadening effect.

In the example shown above, the roller 23
Bottom of the arm stay 11 by urging the spring downward.
The slide bar 12 was decelerated by pressing against the spring 15 and against the spring pressing force. However, in the present invention, as illustrated below, the roller 23 may be laterally biased to strongly press the bent side piece 11a of the arm stay 11, and the slide bar 12 may be similarly decelerated. it can

In this other example, as shown in FIG. 11, the slide bar 12 has a contact piece 21 near one end b1.
, A large-diameter pin-shaped spring hanging shaft 40 is erected, and a large-diameter pin-shaped pivot shaft 41 is erected on the bottom surface 12a adjacent to the contact piece 21, and the arm 42 is supported by the pivot shaft 41. It is swingably attached. The roller 2 is attached to the tip of the arm 42.
3 is provided, and the spring hooking pin 4 is provided between the roller 23 and the pivot 41.
3 is stuck. The roller 23 in the illustrated example is in the form of a short tube and is rotatably held by fitting a short shaft 44 fixed to the tip of the arm 42. Then, a torsion coil spring 45 is wound around the pivot shaft 41 as a spring biasing means, one end of the spring is hooked on the spring hook shaft 40, and the other end of the spring is held by the spring hook pin 43.
And urges the arm 42 to rotate in one direction, so that the roller 23
Is pressed against one of the bent side pieces 11 a of the arm stay 11.

On the other hand, in the arm stay 11, a plurality of projections 15 are laterally projected at intervals near the tip end a1 of one bent side piece 11a at intervals in the length direction. Each of the protrusions 15 in the illustrated example is formed in a sawtooth shape in which the base end portion a2 side of the arm stay 11 is inclined, but may be formed in a semicircular shape if it is convex. Further, in the illustrated example, three protrusions 15 ... Are provided at equal intervals, but two or four or more protrusions may be provided, or they may be provided at unequal intervals. Although not shown, the height of each protrusion 15 may be gradually increased as it approaches the tip a1 of the arm stay 11.

Further, in this other example, even if the door B is excessively vigorously opened, when the one end b1 of the slide bar 12 approaches the tip a1 of the arm stay 11,
To slide the door B until it is fully opened, use the roller 2
3 is a torsion coil spring 4 as shown in FIG.
While overcoming the strong pressing force of No. 5 and climbing on the projections 15 ..., these convex obstacles must be overcome one by one, during which the slide bar 12 slides intermittently under strong resistance. The speed is gradually reduced, so that the load transmitted to the hinge 30 is weakened. Then, the roller 23 is elastically held between the last protrusion 15 and the guide member 18.

In the above example shown in FIGS. 11 and 12,
Although a plurality of projections 15 are provided on the bending side piece 11a of the arm stay 11 in a divided manner, the present invention does not show the projections.
It may be formed by projecting in a long brim shape in the sliding direction of 2.
The protrusion height of the longitudinal protrusion is equal to that of the arm stay 11
It is advisable to provide a gradient that gradually becomes longer as it approaches the front end portion a1.

In the illustrated examples listed above, the projection 1
5 is a bottom surface 11b of the arm stay 11 or a bent side piece 11a.
However, the present invention does not exclude that the moving roller 23 is provided at a position other than the bottom surface or the bent side piece as long as it can be pressed by the spring biasing means.

By the way, the above is the door stopper 1 described above.
Although the door B is shown as an example of a fitting having 0, the fitting according to the present invention is not limited to such a door, and is another movable work piece, and the door stopper 1 having the same structure as that of the door.
It is also possible to adopt a configuration having 0.

[0043]

According to the present invention configured as described above,
The following effects can be obtained.

According to the invention described in claims 1 and 8,
Even if the door is inadvertently overloaded, it is composed of a plurality of protrusions that the roller rides over against the pressing force of the spring urging means, and are arranged at intervals near the tip of the arm stay in the length direction. Even if the slide bar is opened by receiving a strong external force, when one end of the slide bar approaches the tip of the arm stay,
To slide the door as it is, open the roller.
While overcoming the pressing force of the leaf spring, the multiple protrusions 1
They have to climb one by one and get over these protrusions, during which they are subjected to strong resistance intermittently by the number of obstacles, which gradually reduces the sliding speed of the slide bar, resulting in a door opening. The strong impact force received is buffered through the door stopper, the impact force weakens the load applied to the hinge, and it prevents the hinge from being twisted or damaged due to it and securely protects the hinge. can do.

Accordingly, in the present invention, as the hinge,
It is not necessary to use the one that is thick and has strong rigidity as in the past, and it is possible to use a relatively thin and lightweight metal hinge or resin hinge regardless of the material, and as a result, the door The cost of the hinge can be significantly reduced.

According to the invention described in claims 2 and 9,
Since the heights of the plurality of protrusions are gradually increased toward the tip of the arm stay, the protrusion of the roller overcoming the strong pressing force of the leaf spring increases as the door approaches full opening. As a result, the sliding speed of the slide bar can be more effectively reduced by receiving a stronger resistance.

According to the third aspect of the present invention, since the projection is formed in a long convex shape in the sliding direction of the slide bar, when the door approaches full opening, the roller has a strong leaf spring. While riding on the protrusion against the pressing force, the sliding speed of the slide bar can be effectively reduced by continuously receiving a strong resistance for the length of the protrusion.

According to the fourth aspect of the present invention, since the protrusion having the elongated convex shape is provided with a slope that gradually increases as it approaches the front end of the arm stay, the roller is rotated as the door approaches full opening. Is subjected to stronger resistance as much as the protrusion overcoming the strong pressing force of the leaf spring becomes higher, so that the sliding speed of the slide bar can be more effectively reduced.

According to the fifth aspect of the present invention, since the projection is formed in a plate-like shape with a non-metallic member and is fitted near the tip of the arm stay, the sliding speed of the slide bar is increased. It is possible to obtain the effect of reducing the noise, and it is possible to suppress the generation of abnormal noise such as annoying metal noise when the roller rides over the plate-shaped projection as much as possible.

According to the sixth aspect of the present invention, since the plate-like projection is provided with a slope that gradually increases as it approaches the tip of the arm stay, the roller is rotated as the door approaches full opening. The sliding speed of the slide bar can be more effectively reduced by receiving stronger resistance as much as the protrusion overcoming the strong pressing force of the leaf spring becomes higher.

According to the invention described in claim 7, since the surface of the plate-like projection is formed with irregularities, when the roller passes over the plate-like projection against the strong pressing force of the leaf spring. As a result, the sliding speed of the slide bar can be more effectively reduced by receiving a stronger resistance because of the unevenness on the surface.

According to the tenth aspect of the present invention, the strong impact force received by the fitting is buffered through the door stopper, and the load applied to the hinge is weakened by the impact force, which causes the hinge for the fitting. The hinge can be reliably protected by preventing it from being twisted or damaged.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a structure of a main part of a door stopper according to the present invention.

FIG. 2 is a plan view of the door stopper shown with the slide bar accommodated in the arm stay and overlapped with each other.

FIG. 3A is a state in which the roller is about to ride on a protrusion when the door is almost fully opened, FIG. 3B is a state in which the roller is riding on the first protrusion, and FIG. State (D) is a partial vertical cross-sectional view showing a state in which all the bumps have been overcome.

FIG. 4 is a partial vertical cross-sectional view showing a difference in protrusion height of a plurality of protrusions.

FIG. 5 is a plan view showing the door stopper of the present invention installed between the door support frame and the door in a fully opened state of the door.

FIG. 6 is a plan view of the door stopper in a state where the slide bar is housed in the arm stay and overlapped with each other, in another example in which the protrusion is formed in a long convex shape.

FIG. 7 is another example of FIG. 6, in which (A) shows a state in which the roller is almost on the protrusion when the door is almost fully opened,
FIG. 6B is a partial vertical cross-sectional view showing a state in which the protrusion is being climbed up, and FIG.

[FIG. 8] In another example using a plate-shaped projection made of resin,
It is a top view of a door stopper shown in the state where a slide bar was stored in an arm stay and piled up.

FIG. 9 is a perspective view showing a resin-made plate piece-like projection and a tip end side of a slide bar having a fitting hole into which the projection is fitted.

FIG. 10 is a partial vertical cross-sectional view showing a structure of a door stopper in a portion where a resin plate-like projection is fitted.

FIG. 11 is a perspective view showing a main part of another example in which the roller is biased laterally by a spring to press it against the bent side piece of the arm stay.

12 (A) and 12 (B) are views showing a state in which the roller rides on the first protrusion when the door approaches the fully opened state, and (B) shows a state where the roller has passed over the protrusion. It is a top view.

FIG. 13 is a plan view showing a conventional door stopper installed between the door support frame and the door in a fully opened state.

[Explanation of symbols]

10 Door stopper 11 Arm stay 11a Bending side piece of arm stay 11b Bottom of arm stay 12 slide bar 15 protrusions 23 Laura 25 Leaf spring (spring biasing means) 30 hinges 31 ・ 33 slope 45 torsion coil spring (spring biasing means) a1 Tip of arm stay a2 Base end of arm stay b1 One end of slide bar b2 The other end of the slide bar A door support frame B door

Continued front page    (72) Inventor Toshiya Kaneko             2-1-1 Oshima, Koto-ku, Tokyo Toste             Mu Co., Ltd. (72) Inventor Tsukasa Segawa             8-9-1, Shinmachi, Ome-shi, Tokyo limited society             Company Best Omeuchi (72) Inventor Mitsuaki Shoji             8-9-1, Shinmachi, Ome-shi, Tokyo limited society             Company Best Omeuchi

Claims (10)

[Claims] 1. A roller for holding a slide bar slidably inserted into an arm stay having a groove-shaped cross section and rotatably held at one end of the slide bar by a spring biasing means. A door stopper that presses against the bottom surface of the arm stay and when the door is fully opened, elastically releasably attaches the roller at the tip of the arm stay to hold the door in the fully opened position. When the bar is slid, a plurality of projections over which the roller rides against the pressing force of the spring biasing means,
A door stopper, characterized in that it is provided near the tip of the arm stay at intervals in the longitudinal direction. 2. The door stopper according to claim 1, wherein the heights of the plurality of protrusions are gradually increased toward the tip of the arm stay. 3. A roller for holding a slide bar slidably inserted in and connected to an arm stay having a grooved cross section, and rotatably holding one end of the slide bar by a spring urging means. A door stopper that presses against the bottom surface of the arm stay and when the door is fully opened, elastically releasably attaches the roller at the tip of the arm stay to hold the door in the fully opened position. When the bar is slid, a protrusion over which the roller rides against the pressing force of the spring urging means is provided near the tip of the arm stay, and the protrusion is formed in a long convex shape in the sliding direction of the slide bar. A door stopper characterized by being formed. 4. The door stopper according to claim 3, wherein the protrusion having a long longitudinal shape is provided with a slope that gradually increases as it approaches the tip of the arm stay. 5. A roller for rotatably holding a slide bar slidably inserted into an arm stay having a grooved cross section and rotatably held at one end of the slide bar by a spring urging means. A door stopper that presses against the bottom surface of the arm stay and when the door is fully opened, elastically releasably attaches the roller at the tip of the arm stay to hold the door in the fully opened position. When the bar is slid, a protrusion is provided for the roller to overcome against the pressing force of the spring biasing means, and the protrusion is formed in the shape of a plate with a non-metallic member and is located near the tip of the arm stay. A door stopper characterized by being fitted. 6. The door stopper according to claim 5, wherein the plate-shaped projection is provided with a slope that gradually increases toward an end of the arm stay. 7. The door stopper according to claim 5, wherein the surface of the plate-like projection is formed with irregularities. 8. A roller for rotatably holding a slide bar slidably inserted into an arm stay having a groove-shaped cross section and rotatably held at one end of the slide bar is urged laterally by a spring urging means. When the door is fully opened by pressing one of the bent side pieces of the arm stay and the roller is fully opened, the roller is releasably elastically attached at the tip of the arm stay to hold the fully opened position of the door. A door stopper, wherein when the slide bar is slid, a plurality of protrusions over which the roller rides against the pressing force of the spring biasing means,
A door stopper, characterized in that it is provided at a position closer to a tip portion of the arm stay of the one bent side piece, with a space provided therebetween. 9. The door stopper according to claim 8, wherein the heights of the plurality of protrusions are gradually increased toward the tip of the arm stay. 10. A fitting comprising the door stopper according to any one of claims 1 to 9.