JP2831614B2 - Door fixture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used to attach a door and fix the door in an open state or a closed state by making the tip end go into a pit in the floor by operating a lever. About the tool.

[0002]

2. Description of the Related Art Conventionally, a door has a movable base supported on a base fixed to the door so as to be able to ascend and descend so as to fix the door to an open state or a closed state or to release the door. Door fixtures, so-called French droppers, are widely used, which are equipped with pits whose parts enter and exit floor pits.

[0003]

However, the drop bar provided in the conventional door fixing device is a single rod having a substantially uniform cross-sectional shape.
There is a problem that the fixed door is loose due to wind or the like in relation to a drop hole whose inner diameter is set to be larger than the tip of the drop rod so that the tip is easily fitted.

[0004] The present invention has been made in view of the above circumstances, and has as its object to provide a door fixing device having a function of preventing rattling due to swinging of a fixed door.

[0005]

In order to solve the above-mentioned problems, a door fixing device according to the present invention supports a drop bar to a door in a vertical and freely movable manner. A door fixing tool which moves in and out of a pit on the floor with the movement of the floor, and a downwardly biased guide sleeve having a tapered portion formed at the tip of the dropper body is attached to the tip of the dropper main body.
The diameter of the distal end of the tapered portion is set to a size that can enter the pit, and the diameter of the base end of the tapered portion is set to a size that cannot enter the pit. Among them, a feature is provided in which a catch rod is provided in which the depth from the portion that hangs to the opening edge of the catch hole to the tip is shallower than the depth of the catch hole.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a door fixing device according to an embodiment of the present invention. FIG. 4 shows an example of an operation unit of the door fixing device according to the present invention. The door fixing device includes a base 9 fixed to the end surface of the door 1 and a base 9.
A movable base 10 supported to be movable up and down, a lever 11 for moving the movable base 10 up and down, and a movable base 10
The movable base 10 is vertically extended and the tip is operated by a lever.
Rod 2 that goes in and out of the pit 4 on the floor 3 as the
It is composed of

The base 9 of the door fixing device shown here is reinforced by appropriately forming ribs integrally with a plate made of an aluminum alloy, and a pair of finger hooks which are hemispherically recessed on the surface of the plate. Part 1
2, 12 are provided in the center of the plate body in the longitudinal direction, and the notch 13 for housing the lever 11 is
2 and 12 are provided in such a manner as to be connected to each other, and a bearing portion 14 for swingably supporting the lever 11 is provided at an intermediate portion in the longitudinal direction of the cut 13. Further, the base 9
The movable base 1 on the back side of the cut 13.
0 is slidably held in the longitudinal direction of the base 9, a pair of holding pins 15, 15 are placed in parallel with the central portion of the cut 13 interposed therebetween and at the same distance from the back surface of the base 9. Have been handed over.

[0008] The lever 11 is provided with
A semicircular knob that can be housed in the base 2 is formed, and a through hole is provided in the base for supporting the bearing 14 with the swing shaft 16, and a connecting portion that further projects in the longitudinal direction from the base. 17 is formed integrally with the tip as a curved surface. A low cylindrical sliding body 18 is swingably mounted on the connecting portion 17 of the lever 11, and the sliding body 18 has one end center linearly missing and sandwiching the missing portion. The portions remaining on both sides become the bearings 19 that support the connecting portion 17. A concave portion 21 is formed on the other end surface of the sliding body 17 so as to easily hold a biasing member such as a spring 30.

The movable base 10 is an elongated plate having a width smaller than a separation length between the holding pin 15 and the back surface of the base 9 and a width smaller than a distance between a pair of legs 22 supporting the holding pins 15. And a bottomed cylindrical guide 23 in which a sliding body 17 mounted on the lever 11 is mounted and in which the sliding body 17 can slide inside, is formed at a central portion in the longitudinal direction. A holding portion 24 having a screw hole penetrating in the sliding direction of the movable base 10 is formed at a lower portion of the movable member 10 so that the drop bar 2 can be mounted and its effective length can be adjusted.

As a result of assembling these members, the sliding body 18 mounted on the connecting portion 17 of the lever 11 is mounted on the guide 23 of the movable base 10, and at the same time, the opening of the guide 23 is It is urged toward the part. The movable base 10 is held so as to sandwich the guide 23 by a pair of holding pins 15 arranged in parallel at least with a length enough to secure the sliding stroke. By securing a predetermined length on both sides in the longitudinal direction of the movable base 10, detachment from the sliding direction is prevented. Each time the lever 11 swings up and down 180 degrees with the swing shaft 16, the cut 1
3 and any one of the finger hooks 12, but the lever 11 is prevented from standing on the surface of the base 9 due to the correlation between the biasing force applied to the sliding body 17 and the curved shape of the tip of the connecting portion 17. As a result, the stored state of the lever 11 in the cut 13 and the finger hook 12 is suitably maintained. Further, the rear surface of the movable base 10 is constantly pressed against the holding pins 15 by the same urging force,
The structure is such that rattling between the members such as the base 9 and the movable base 10 can be prevented.

Further, in the door fixing device according to the present invention, the problem of rattling between the drop bar 2 and the drop hole 4 is solved by devising the structure of the drop bar 2 as described below.

That is, the drop bar shown in FIGS. 1 to 3 is a rod in which a guide sleeve 6 having a tapered taper portion 5 at the tip is attached to the tip of a drop bar body 25 which is a metal bar having a circular cross section. It is. That is, the stopper 26 is integrally formed near the base of the tip portion of the drop bar main body 25, and the spring 20, which is an urging member, is mounted from the tip of the stopper 26. Next, the guide sleeve 6 is attached to the spring 20.
Is attached while compressing and shrinking it at the end face on the base side of the guide sleeve 6, and thereafter, a groove 27 is formed on the tip end surface of the drop bar body 25, and the groove 27 is pushed out to widen the tip of the drop bar body 25. This prevents the guide sleeve 6 from coming off.

The tapered portion 5 of the guide sleeve 6
Sets the diameter of the distal end 7 to a size that can enter the pit 4 and the diameter of the proximal end 8 of the tapered portion 5 to a size that cannot enter the pit 4.
In addition, by setting the depth of the tapered portion 5 from the portion that covers the opening edge of the pit 4 to the tip thereof to be shallower than the depth of the pit 4, the force with which the guide sleeve 6 is pressed against the opening edge of the pit 4 And the effect of the shape of the tapered portion 5, that is, a so-called centripetal action in which the center of the tip of the drop bar 2 is directed to the center of the drop hole 4,
It is possible to prevent rattling between the pit 4 and the tip of the pit 2.

The shape of the tapered portion 5 is an indispensable condition for obtaining this action, but even if this condition is satisfied, the tip of the drop rod main body 25 remains in the guide sleeve 6 in a steady state. If it protrudes greatly from the tip, the tip of the drop rod main body 25 reaches the bottom of the drop hole 4 before the tapered portion 5 comes into contact with the opening edge of the drop hole 4, so that a predetermined action cannot be obtained. Therefore, the amount of protrusion of the drop bar main body 25 from the tip of the guide sleeve 6 is kept to a minimum, and the tapered portion 5 is
It is desirable that the drop bar body 25 be set so as to slightly protrude from the tip of the guide sleeve 6 by being pressed against the opening edge of the drop hole 4 and rising.

As the taper portion 5 becomes deeper, the centripetal action becomes stronger. However, when the taper portion 5 is made deeper, it is necessary to set the depth of the pit 4 to be deeper. Since the overall structure of the door fixture is affected, including the selection of 20, it is necessary to balance the configuration and function of each member when designing. Also, the appearance of the guide sleeve 6, selection of the urging member,
The method of preventing the stopper 26 and the guide sleeve 6 from being detached is not limited to the above-mentioned structure, and the design can be appropriately changed.

Further, the structure of the operation section does not need to be limited to the above structure. For example, when used for a gate or the like, a simple structure for moving the operation lever 28 along the groove 29 as shown in FIG. May be adopted.

[0017]

As described above, the use of the door fixing device according to the present invention eliminates the problem that the fixed door is rattled by wind or the like due to the relationship between the drop bar and the drop hole, and the durability of the door fixing device and the door itself is eliminated. In addition to extending the number of years, the discomfort caused by noise can be eliminated.

[Brief description of the drawings]

FIG. 1 is a main part front view showing an example of a door fixing device according to the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a side view of a main part showing an example of a door fixing device according to the present invention.

FIG. 4 is a sectional view showing an example of an operation unit of the door fixing device according to the present invention.

FIG. 5 is a rear view showing an example of an operation unit of the door fixing device according to the present invention.

FIG. 6 is a front view showing another example of the operation unit of the door fixing device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Drop bar 3 Floor 4 Drop hole 5 Taper part 6 Guide sleeve 7 Tip 8 Base end L, D depth 25 Drop bar body

Claims (1)

(57) [Claims] A drop rod (2) is supported vertically and freely up and down on a door (1), and a tip end of the drop rod (2) is formed in a drop hole (3) in a floor (3) with the movement of an operation unit. In the door fixing device for entering and exiting 4), a guide sleeve (6) having a tapered tapered portion (5) formed at the tip thereof is attached to the tip of the drop bar body (25) by urging downward, The diameter of the distal end (7) in the tapered portion (5) is set to a size that can enter the pit (4), and the diameter of the base end (8) in the tapered portion (5) is set to the pit (4). ), And the depth (L) of the tapered portion (5) from the portion of the tapered portion (5) extending over the opening edge of the trap hole (4) to the tip is defined as the depth of the trap hole (4). Depth (D)
A door fixing device comprising a drop bar set to be shallower.