JP3076478U - Door stopper - Google Patents

Abstract

(57) [Problem] To provide a door stopper which has locking means for securely locking, releases the lock with a small load, and holds the open state of the hinged door. A base mounted on the side of a hinged door, a leg pivotally supported by the base, and both ends pivotally supported by the base and the leg, respectively, and a pivot point between the base and the base is defined by the leg and the base. And a tension spring displaced toward the side surface of the hinged door with respect to the pivot point of the above, and the unstable switching of the legs is performed up and down by the tension of the tension spring.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a door stopper which is attached to the side of a hinged door, particularly a hinged door with a gradual closure, and fixes the hinged door in an open state.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, a door stopper has been used as a means for keeping a hinged door, particularly a hinged door (hereinafter simply referred to as a “sliding door”) in an open state. The door stopper switches between a posture for keeping the hinged door open and a posture for releasing the door, and in each posture, it is necessary to maintain the posture against external force. Door stoppers that are attached to the side of the hinged door and hold the hinged door in an open state include door stoppers disclosed in Japanese Utility Model Laid-Open Publication No. 6-40258 and Japanese Patent Laid-Open Publication No. Hei 10-246054.

[0003] The door stopper according to Japanese Utility Model Laid-Open Publication No. 6-40258 has a magnet part, a leg part, and a mounting part having a locking means as described in the above-mentioned publication. When holding the hinged door in the open state, the magnet is attached to the side of the hinged door, and the legs contact the floor, acting as a stick for the hinged door and fixing the hinged door. On the other hand, when releasing the hinged door from the open state, the leg is rotated upward with the hand or foot with the pin at the fixed end of the leg as a fulcrum, and the leg is locked to the mounting portion having the locking means. By doing so, the hinged door is released from the open state.

[0004]

[Problems to be solved by the invention]

 However, if the attachment between the mounting part with the locking means and the leg is loose, the leg may be impacted by opening and closing the hinged door, regardless of the user's intention, and the leg may be locked by the locking means. And the hinged door may be opened. On the other hand, if the attachment part and the leg are tightly locked, not only will a strong force be required when the leg is detached from the locking means using hands or feet, but also the magnet will be opened. A large load may be applied between the doors, and the door stopper may be detached from the hinged door.If the door stopper is fixed to the hinged door with screws, the hinged door or door stopper may be damaged. is there.

[0005] As described above, the conventional door stopper has a problem of posture holding and breakage.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a door stopper capable of reliably and stably maintaining the respective positions of an opening door and an opened door. And

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the door stopper of the present invention has a base mounted on the side of the hinged door, a leg pivotally supported by the base, and both ends pivotally supported by the base and the leg, respectively. Equipped with a tension spring whose pivot point with the base is displaced toward the side of the hinged door with respect to the leg and the pivot with the base, and the tension of the tension spring switches the legs up and down unstablely. A door stopper characterized in that:

[0008] By displacing the pivot point of the base portion and the tension spring to a higher position with respect to the pivot point of the base portion and the leg portion, the unstable switching position is positioned below the pivot point of the base portion and the leg portion. Is set to.

[0009] Furthermore, a bellows-like cover may be provided to cover the pivot points of the leg and the base and the pivot points of both ends of the tension spring.

[0010]

[Action]

 Such a door stopper lowers the legs when opening the hinged door, and raises the legs when releasing the opened state of the hinged door. Switching between these two positions is performed by rotating the leg by a certain angle against the tension of the tension spring, and after passing a certain point, the tension that has stopped the rotation changes. To an acting force that promotes rotation. There is no stable point in the middle of this switching, and the leg is instantaneously switched to the state of being flipped up or lowered, and is stabilized in this switched position.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the door stopper according to the present invention will be described with reference to the drawings. FIG. 1 is a side view of the door stopper according to the present invention. The door stopper 1 includes a base 2 mounted on the hinged door side surface 5a, a leg 3 pivotally supported by the base 2, and a tension spring 4 pivotally supported at both ends by the base 2 and the leg 3, respectively. And The base portion 2 includes a metal base case 2a, a magnet 2b housed in the base case 2a, a flange portion 2c for pivotally supporting the leg 3 and the tension spring 4, and a pivotal support for pivotally supporting the leg. It comprises an axis X and a pivot axis Y for pivotally supporting the tension spring 4. The leg portion 3 is provided with a metal strut member 3a, a rubber cap 3b at a portion where the leg portion 3 comes into contact with the floor 6, and a pivot shaft Z for pivotally supporting the tension spring 4 as anti-slip means. . Further, the position of the pivot axis X of the tension spring on the base portion is located above the position of the pivot axis Y of the leg portion on the base portion.

As shown in an embodiment of a door stopper with a bellows-shaped cover shown in FIG. 2, the magnet 2b of the door stopper 1 is mounted on the door side surface 5a, and the rubber cap 3b of the leg 3 is placed on the floor. The hinged door 5 is fixed by contact.

In FIG. 1, by setting the respective pivot points at the above positions, a straight line L2 connecting the pivot axis X of the leg at the base portion and the pivot axis Y of the tension spring at the base portion, When the straight line L1 connecting the pivot axis Y of the tension spring at the base portion and the pivot axis Z of the tension spring at the leg overlaps, the tension spring 4 extends to the maximum, so that unstable switching can be performed. is there. In other words, when the leg 3 is rotated above the point where the tension spring 4 shown in FIG. 1 is maximally extended, an upward force is applied to the leg 3 by the tension of the tension spring. Therefore, it is possible to rotate the leg 3 upward with a smaller force than when the leg 3 is rotated upward without the tension spring 4 provided. On the other hand, when the leg 3 is rotated downward from the point where the extension spring 4 extends to the maximum, the leg 3 is rotated downward by the tension of the extension spring 4, and the rubber cap 3 b comes into contact with the floor 6. It functions as a stay bar between the hinged door 5 and the floor 6 to fix the opened state of the hinged door 5.

Further, since the pivot axis Y of the tension spring at the base portion is provided at a position higher than the pivot axis X of the leg portion at the base portion, it is lower than the pivot axis X of the leg portion at the base portion. Unstable switching is performed at the position. On the other hand, in order to perform the position where the unstable switching is performed at the same position as the pivot axis X of the leg at the base portion or at a high position, the pivot shaft Y of the tension spring at the base portion is used at the base portion. It is possible to change the position at which the unstable switching is performed by displacing each of the legs at the same position as the pivot axis X or at a position lower than the same.

In the above-described embodiment, the unstable switching is performed by using the tension spring 4. However, the pivot axis X of the leg at the base is opened more than the pivot axis Y of the tension spring at the base. It is also conceivable to use a compression spring to perform unstable switching by devising a mechanism such as supporting the tension spring in the base without using a pivot shaft as a means for supporting the tension spring.

Further, as a method of fixing the door stopper 1 to the door side surface 5a, a method of fixing the door stopper 1 using the magnet 2b is employed in the present embodiment. A method of providing a screw hole in the case and fixing it with wood screws or nails, or a method of fixing the case with a double-sided tape or an adhesive when the hinged door 5 is made of glass, can be adopted. Although the base case 2 has a rectangular shape, a cylindrical base case may be used.

FIGS. 3 and 4 show the tension spring 4 and the pivot axis X of the leg at the base portion covered with a bellows-like cover 7. FIG. 3 is a perspective view in a state in which the legs are lowered and the hinged door is fixed, and FIG. 4 is a perspective view in a state in which the legs are raised and the hinged door is released from the fixed state. By attaching the bellows-like cover 7 in this way, it is possible to prevent dust and the like from entering the pivot shaft.

[0018]

[Effect of the invention]

 As described above, the door stopper of the present invention has a base, a leg pivotally supported by the base, and tension springs whose both ends are pivotally supported by the base and the leg, respectively. Since the pivot point of the base and the tension spring is displaced toward the side of the hinged door with respect to the pivot point, unstable switching can be performed. Therefore, the straight line connecting the pivot point of the leg at the base and the pivot point of the tension spring at the base overlaps the straight line connecting the pivot point of the tension spring at the base and the pivot point of the tension spring at the leg. As long as the legs do not rotate below the tilted position, the legs return to the upright posture, so that if an impact is applied due to the opening and closing of the hinged door, the upright posture can be maintained. The leg can be maintained in the upright posture only by the tension of the tension spring. In addition, even if the legs rotate downward from the flipped-up posture due to the impact generated by opening and closing the hinged door, etc., the legs are restored by the tension of the tension spring, so the legs can be opened regardless of the user's intention. Will not be released. On the other hand, if the leg is rotated above the position where the tension spring extends to its maximum, the leg is pulled upward by the tension of the tension spring, and the leg springs up. The hinged door can be released from the open state by the force that turns the door upward from the position where it extends to its maximum.

Further, when the swing door is fixed to the open state with the legs lowered, the tension of the tension spring generates a moment to rotate the legs downward, so that the force for pushing the floor further increases. . Therefore, the frictional force between the rubber cap at the tip of the leg and the floor increases, so that the hinged door can be easily fixed in the open state.

In the door stopper according to the second aspect, the position at which the unstable switching is performed by displacing the pivot point of the base portion and the tension spring to a higher position with respect to the pivot point of the base portion and the leg portion is as follows. It can be set lower than the pivot point between the base and the leg. Therefore, to release the door stopper's upright position, the legs must be pivoted more than when the unstable switching point is located higher than the pivot point between the base and the legs. You can maintain your up position. On the other hand, when the hinged door is fixed to the open state with the legs lowered, the tension spring extends longer than when the unstable switching point is higher than the pivot point between the base and the legs. The tension of the tension spring increases. Therefore, the moment of pivoting downward on the leg is greater, the frictional force between the rubber cap at the tip of the leg and the floor is increased, and the hinged door is more easily fixed in the open state.

In the door stopper according to the third aspect, by attaching a bellows-like cover, the pivot portion can be protected from intrusion of dust and the like. Further, by covering the mechanical parts such as the tension springs and the pivot parts, the aesthetics can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a door stopper.

FIG. 2 is an explanatory view showing a use state of a door stopper to which a bellows-like cover is attached.

FIG. 3 is a perspective view of a door stopper to which a bellows-like cover is attached in a state where the hinged door is fixed.

FIG. 4 is a perspective view of a door stopper to which a bellows-like cover is attached in a state where the legs are locked.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Door stopper 4 Tension spring 2 Base part 5 Door hinge 2a Base case 5a Door side 2b Magnet 6 Floor 2c Flange part 7 Bellows-like cover 3 Leg part X Pivot shaft of leg part in base part 3a Strut member Y Base part 3b Rubber cap Z Z axis of tension spring at leg

Claims (3)

[Utility model registration claims] 1. A base mounted on a side surface of a hinged door, a leg pivotally supported by the base, and both ends pivotally supported by the base and the legs respectively, and a pivot point between the base and the base. And a tension spring displaced toward the side of the hinged door with respect to a pivot point between the leg and the base, wherein the leg is vertically switched by the tension of the tension spring. Features door stopper. 2. The door stopper according to claim 1, wherein a pivot point of the base portion and the tension spring is displaced to a higher position with respect to a pivot point of the base portion and the leg portion. 3. The door stopper according to claim 1, further comprising a bellows-like cover that covers a pivot point between the leg and the base portion and pivot points at both ends of the tension spring.