JP4226512B2 - Door stopper - Google Patents

Description

  The present invention relates to a door stopper that keeps a door that is always given power in the closing direction open.

  As this type of door stopper, those shown in FIGS. 5 to 9 are conventionally known. In this conventional door stopper, a rotating member 2 is provided so as to be rotatable around a shaft member 1. And a contact piece 4. The latch piece 3 and the contact piece 4 maintain an angle of about 90 degrees with the shaft member 1 as the center. In addition, a stopper 3 a is provided at the tip of the latch piece 3. And as shown in FIG. 6, thickness t1 of the latching piece 3 is made thinner than height t2 from the lower end of the door 5 to the floor | bed 6. As shown in FIG. In other words, when the retaining piece 3 is placed on the floor 6, the door 5 can pass therethrough.

The door stopper configured as described above fixes the shaft member 1 to the floor 6. At this time, the door stopper is set so that the tip of the contact piece 4 is positioned within the rotation trajectory of the door 5.
If the door 5 is set as described above, when the door 5 is opened in the direction of the arrow r in FIG. 7 which is the direction opposite to the direction of the force, the door 5 hits the contact piece 4 in the rotation locus. When the door 5 is still rotated in the direction of the arrow r, the rotating member 2 is rotated about the shaft member 1 in the direction of the arrow s, which is the opposite direction to the arrow r. And if both rotate further, the front-end | tip of the door 5 will enter inside rather than the stop part 3a of the latching piece 3 (refer FIG. 8). In other words, the stopper 3 a of the latching piece 3 is located within the rotation trajectory of the door 5.

When the door 5 is released after the state shown in FIG. 8, the door 5 tries to return to the closing direction by the action of the initial force. However, at this time, as described above, the stopper 3a is positioned within the rotation trajectory of the door 5, so that the door 5 is hooked on the stopper 3a and stops at that position as shown in FIG. That is, the door 5 is kept open.
When the door 5 is closed after the door 5 is kept open as described above, the door 5 is slightly returned in the direction away from the stopper 3a, that is, in the direction of the arrow r against the initial force, and then the rotating member. 2 is turned in the direction of arrow s to release the stopper 3a from the door 5. When the door 5 is separated from the stop portion 3 a, the rotation member 2 is rotated using a foot or the like while the door 5 is held by hand, and the stop portion 3 a is positioned outside the rotation locus of the door 5.

If the door 5 is released after the stop portion 3a is positioned outside the rotation locus of the door 5, the door 5 is automatically closed by the initial force described above.
Since the door stopper does not rotate unless the rotating member 2 is moved manually, a person moves it to return it to its original position. And unless the rotation member 2 returns to the original position, when the door 5 is opened next, the stopper 3a cannot be positioned in the rotation locus of the door 5. Therefore, after the door 5 is closed, it is necessary to manually return the rotating member 2 to the original position.
In addition, since the said conventional stopper was already sold, especially prior art literature search was not performed.

  In the conventional door stopper as described above, before the door 5 is opened, the stopper 3a must be positioned outside the rotation trajectory of the door 5, but all of this must be done artificially. Don't be. If the preparation is neglected, when the door 5 is opened, the latch piece 3 including the stopper 3 a hits the door 5, which becomes an obstacle for opening the door 5.

In addition, when the door 5 is kept released and then closed, a person must also rotate the rotating member 2. Therefore, the conventional door stopper has a problem that both the opening and closing of the door 5 have to move the rotating member 2 artificially, which is troublesome.
An object of the present invention is to provide a door stopper that operates all automatically.

The present invention includes a rotation member that is rotatably supported around a shaft member fixed to the floor, and the rotation member is a latch that is hooked on a door on the one side with the shaft member as a boundary. One piece is provided, and the other is provided with a contact piece that faces the turning locus of the door. Further, a spring force that applies a turning force in a direction opposite to the opening direction of the door is applied to the turning member. The latching piece includes a stop member that is movable toward the shaft member and is provided with a spring force that is directed toward the shaft member, and is provided with a stop member that is opposite to the shaft member. A stopper is provided at the tip, and when the door hits the contact piece and the turning member turns against the spring force, and the door reaches the retaining piece, the tip of the stop member is turned into a shaft member. It is characterized in that it is configured to fit into a recess provided in the.

Since the present invention is configured as described above, when the door is opened, the door hits the contact piece facing the rotation locus. If the door is further opened in this state, the rotating member rotates about the shaft member against the spring force. At this time, the stop member provided on the rotating member has its end pushed to the shaft member by the spring force. Keep in pressure contact. When the rotating member further rotates together with the door and the door reaches the open position, the tip of the stop member fits into the recess provided in the shaft member, and the rotation of the rotating member is stopped.
If the door is released in the above state, the door tries to return to the original position, that is, the closed position by the initial force, but at this time, the door hits the stop portion of the stop member and is prevented from rotating.

  However, the stop member moves against the spring force by the initial force of the door, and the tip of the stop member is extracted from the recess. When the door is closed again from this state, if the door in contact with the stopper is slightly rotated in the opening direction, the stopper and the door are separated from each other, so that the rotating member automatically returns to the original position by its spring force. Return to. And this original position is a state in which the contact piece is located in the rotation locus of the door.

  According to the door stopper of the present invention, each of the rotating member and the stopping member moves automatically or automatically depending on the spring force held by them and the force when opening the door or its initial force. Since it returns to its original position, all the trouble of moving them by hand can be saved.

In the door stopper according to the embodiment of the present invention shown in FIGS. 1 to 4, a rotating member 12 having a bell crank shape is rotatably attached to a shaft member 11 fixed to a floor 6. The bell crank-shaped rotating member 12 includes a latch piece 13 and a contact piece 14.
A stop member 15 is provided on the latch piece 13 so as to be movable in the direction of the shaft member 11, and a spring 16 is provided on the stop member 15 between the latch piece 13 and the stop member 15. The tip of this is in pressure contact with the shaft member 11. In this way, the tip of the stop member 15 is pressed against the shaft member 11, but a recess 17 is formed at a predetermined position of the shaft member 11, and the rotating member 12 rotates to a predetermined position, so that the stop member 15 When the tip and the concave portion 17 face each other, the stop member 15 is moved by the spring force of the spring 16 to cause the tip to enter the concave portion 17.

Further, the stopping member 15 having the above-described structure is provided with a stopper 18 on the side opposite to the tip, and the stopper 18 exhibits a function of stopping the door 5.
On the other hand, the contact piece 14 is provided with a contact protrusion 19 at its tip. The contact protrusion 19 is in the rotation trajectory of the door 5, and has a relationship that the door 5 hits the contact protrusion 19 when the door 5 is opened.

  As described above, the spring receiving piece 20 is fixed to the shaft member 11 that rotatably supports the rotating member 12. Then, a spring 21 is hooked between the spring receiving piece 20 and the hooking piece 13 so as to apply a clockwise turning force to the turning member 12 in FIG. Note that the clockwise turning force in FIG. 1 is a force in a direction opposite to the turning direction of the door 5 in a state where it is in contact with the door 5 turned in the opening direction of the contact protrusion 19.

Further, as shown in FIG. 2, the height T <b> 1 from the floor 6 to the stop member 15 is lower than the gap T <b> 2 formed between the door 5 and the floor 6. In other words, the relationship that the stop member 15 is not caught on the door 5 when the door 5 rotates is maintained.
Reference numeral 22 in the drawing is a stopper pin provided on the latch piece 13 for the rotating member 12 to hold the original position shown in FIG.

  Now, when no force is acting on the rotating member 12, the rotating member 12 is in the original position shown in FIG. When the door 5 is opened and it reaches the release position, the door 5 hits the contact protrusion 19 and when the door 5 is further rotated in the arrow R direction, the rotating member 12 resists the spring force of the spring 21. And rotate in the direction of arrow S.

  As described above, when the door 5 and the rotation member 12 are relatively rotated against the spring force of the spring 21, the door 5 is stopped by the stop member 15 as shown in FIG. The stopper 18 is kept in pressure contact with the door 5 unless it is located inside the portion 18 and the force for opening the door 5 is released. When the rotation member 12 is rotated to a predetermined position as the door 5 is rotated, the distal end of the stop member 15 faces the concave portion 17 formed in the shaft member 11. The rotation member 12 is prevented from rotating.

  If the force to open the door 5 is released in this state, the door 5 is instantaneously separated from the contact protrusion 19 in an attempt to return to the closing direction by the initial force. However, since the front end of the stop member 15 is in the recess 17 as described above, even if the door 5 moves away from the contact projection 19, the rotating member 12 remains in that position. However, the door 5 on which the closing force is applied tries to rotate further in the closing direction by the initial force. However, at this time, the stopper 18 is located in the rotation locus of the door 5. Accordingly, the door 5 hits the stop portion 18 and is prevented from rotating. However, the initial force of the door 5 at that time overcomes the spring force of the spring 16 of the stop member 15 and moves the stop member 15 away from the recess 17. Move to.

  If the stop member 15 moves in a direction away from the recess 17 as described above, the tip of the stop member 15 is detached from the recess 17. However, at this time, since the door 5 is in pressure contact with the stopper 18, the rotating member 12 maintains the position shown in FIG. 4, that is, the position where the door 5 is kept open by the action of the initial force of the door 5. To do.

On the other hand, when the door 5 is closed, the door 5 is slightly rotated from the state shown in FIG. When the door 5 is thus separated from the stop portion 18, the rotating member 12 is rotated in a direction to return to the original position by the spring force of the spring 21, and the tip of the stopping member 15 is misaligned with the concave portion 17. Thereafter, the rotating member 12 is further rotated by the spring force of the spring 21 to return to the original position and to release the door 5. The door 5 thus released is automatically closed by its own initial power.
If the above operation is repeated, it is not necessary to move the rotating member 12 with a hand or a foot, and it always operates automatically.

It is operation | movement explanatory drawing which showed the relationship between the original position of the door stopper of this embodiment, and a door. It is a side view of a door stopper. It is operation | movement explanatory drawing which shows the state by which the rotation member was rotated by the door. It is action | operation explanatory drawing which shows the state in which the door contacted the stop part and was hold | maintained at the open state. It is a perspective view of the conventional door stopper. It is a side view of the conventional door stopper. It is operation | movement explanatory drawing which showed the relationship between the original position of the conventional door stopper, and a door. It is operation | movement explanatory drawing which shows the state by which the rotation member was rotated by the door. It is action | operation explanatory drawing which shows the state in which the door contacted the stop part and was hold | maintained at the open state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Shaft member 12 Rotating member 13 Latching piece 14 Contact piece 15 Stopping member 17 Recessed part 18 Stopping part

Claims (1)

A rotating member supported rotatably about a shaft member fixed to the floor is provided, and the rotating member is provided with a latching piece that is hooked on the door on one side of the shaft member, The other is provided with a contact piece that faces the rotation trajectory of the door, and further, a spring force that applies a rotational force in a direction that opposes the door opening direction is applied to the rotational member. The latching piece is provided with a stop member that is movable toward the shaft member and is provided with a spring force in the direction of the shaft member, and a stop portion at the tip of the stop member that is opposite to the shaft member. When the door hits the contact piece, the turning member turns against the spring force, and the door reaches the latch piece, the tip of the stop member is a recess provided in the shaft member. The door stopper is designed to fit in.

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