JPH0893310A - Floor hinge stopper - Google Patents

Abstract

PURPOSE: To narrow the width of a floor hinge main body and to obtain a compact floor hinge stopper without cutting off a door frame even if it is buried in the outside of the door frame. CONSTITUTION: A pinion gear 5 provided to a door mounting shaft 2 of a floor hinge main body is engaged with a rack 8 provided to a piston 7, a ratchet is fitted to the door mounting shaft, and one end is pivoted to provide a stopper metal fixture 17 forming a projection 19 interlocked with the ratchet to the other end. A piston rod 7 is pushed toward the closing direction of a door by a spring 21 provided between a piston 6 of the front end of the piston rod 7 and the stopper metal fixture 17, and the projection 19 is always interlocked with the ratchet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor hinge stop device in which a stop device mounted on a door mounting shaft of a floor hinge is made compact.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a stop device for a floor hinge has a large gear 23 meshed with a pinion gear 5 attached to a door mounting shaft 2, and a rack 8 provided on the piston rod 7 in the large gear 23. Are engaged.

A protrusion 27 on one side of a stopper fitting 26 having a hole 26a for inserting the piston rod 7 is formed in a ratchet wheel 24 having one claw 25 coaxial with the large gear 23. The spring 28 that presses the piston rod 7 interposed between the other side surface of the stopper metal fitting 26 and the side surface of the stopper metal 26 is always engaged to prevent further opening of the door.

[0004]

In the conventional floor hinge stop device, since the large gear 23 is meshed with the pinion gear 3 attached to the door mounting shaft 2, the stop device itself becomes wide, and the width of the floor hinge body is increased. There was a problem of increasing.

The floor hinge body is shown in FIG.
As shown in (A), since it is embedded in the door frame 9a for installation, a large space is required for the door frame to fill the floor hinge main body, and there is a drawback that it protrudes from the door frame 9a and cuts the door frame 9a.

Further, since the pinion gear 5 fitted to the door mounting shaft 2 and the large gear 23 and the large gear 23 and the rack 8 of the piston rod 7 are meshed together, the gears 5 and 23, 23 and 8 which mesh respectively. There is backlash between the gears 5 and 2 to rotate the door mounting shaft 2.
There was a play in two places of 3, 23 and 8, and there were drawbacks that the door was rattling and the rotation of the door was not smooth.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a floor hinge stop device in which the width of the floor hinge main body is narrowed and the door frame is not cut even when the floor hinge main body is embedded outside the door frame.

Another object of the present invention is to provide a floor hinge stop device in which the door rotates smoothly and there is little rattling between the door mounting shaft and the door.

[0009]

To achieve the above object, the present invention engages a pinion gear attached to a door mounting shaft of a floor hinge with a rack provided on a piston rod.

A ratchet wheel is inserted into the door mounting shaft, one end of which is pivotally supported, and a stopper metal fitting is formed at the other end of which a projection for engaging with the ratchet wheel is formed.

A spring interposed between the piston at the base end of the piston rod and the stopper fitting causes the piston rod to be pressed in the direction of closing the door so that the projection and the ratchet wheel are always engaged.

[0012]

Since the pinion gear 3 attached to the door mounting shaft 2 of the floor hinge 1 and the rack 8 provided on the piston rod 7 are meshed and directly connected to each other, a large gear is not required as in the conventional case, and the stop device itself is provided. Can be made compact.

Since the large gear 23 is not required as in the conventional case, the gear meshes only at one position where the pinion gear 3 and the piston rod 7 mesh, and the backlash between the gears can be halved.

[0014]

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a floor hinge main body equipped with the stop device of the present invention, and FIG. 2 shows a floor hinge main body from which a door mounting shaft provided with a pinion gear and a piston rod are removed.

FIG. 3 shows the floor hinge attached to the lower surface of the door, FIG. 4 shows the door mounting shaft, FIG. 5 shows the ratchet wheel, and FIG. 6 shows the stopper metal fitting.

FIG. 7 shows a conventional floor hinge body equipped with a stop device having a large gear interposed between a pinion gear attached to a door mounting shaft and a rack of piston rods.

In FIG. 1, reference numeral 1 is a floor hinge main body of a known floor hinge that can be closed slowly and quietly so that the door does not collide with a frame when the door is closed.

Reference numeral 2 denotes a door mounting shaft of the floor hinge main body 1, which is mounted on the door 9 via an eccentric arm 10 which will be described later, and is pivoted to one side in an oil tank 4 continuous with the cylinder 3 of the floor hinge main body 1. Provide freely.

A pinion gear 5 meshing with a rack 8 provided at the tip of a piston rod 7 for sliding a piston 6 in the cylinder 3 is formed below the door mounting shaft 2.

At the upper end of the door mounting shaft 2, a rectangular tapered shaft 12 having a narrow upper end to be fitted into a rectangular tapered hole 11 having a narrow upper portion of an eccentric arm 10 mounted on the lower surface of the door 9 is formed, and the door mounting shaft 2 is mounted. The lower end of the shaft 2 is formed into a regular square pole 13, and the lower end is formed with a shaft 2a that is pivotally supported on the bottom surface of the oil tank 4.

Reference numeral 14 designates a central mounting hole 15 for attaching the door mounting shaft 2
A ratchet wheel with a square shape that fits into the regular square pole 13 at the lower end.
One quarter circular claw 16 is formed on the peripheral surface.

Reference numeral 17 denotes a stopper fitting, which is a hole 17a through which the piston rod 7 is inserted in the central portion as shown in FIG. 6 (B).
And a shaft hole 18 pivotally supported by a pin 18a is formed in the intermediate portion of the oil tank 4 near the door mounting shaft 2 at the base end portion on one side thereof so as to rotate in the door mounting shaft 2 direction A protrusion 19 that engages with the claw 16 of the ratchet wheel 14 is formed below the tip of one side surface.

Numeral 20 is a stop pin, which is a stopper metal fitting 1.
7 is inserted so as to come into contact with one side surface of the door mounting shaft 2 side, the rotation of the stopper metal fitting 17 in the direction of the door mounting shaft 2 is stopped, and the projection 19 is engaged with the pawl 16 of the ratchet wheel 14 exactly. Try to match.

Reference numeral 21 denotes a compression coil spring which constantly pushes the piston 6 at the base end of the piston rod 7 in the cylinder 3 in the direction in which the door 9 is closed. The base end of the piston 6 and the projection 19 of the stopper fitting 17 are opposite to each other. The piston rod 7 is inserted between the other side surfaces.

Numeral 22 is a piston rod feed roll, which is rotatably supported on the opposite side of the door mounting shaft 2 and the piston rod 7 in the oil tank 4 and is provided on the piston rod 7 as the door is opened and closed. The rack 8 and the pinion gear 5 are stably meshed, and the piston rod 7 is guided to be inserted into and removed from the cylinder 3.

[0027]

The present invention has the above-described structure, and the piston rod 7 and the pinion gear 5 of the door mounting shaft 2 are directly connected to each other, and the ratchet wheel 14 is provided coaxially with the pinion gear 5, so that the stopper device itself. The width of the floor hinge becomes narrower, the floor hinge body 1 becomes narrower, and the door frame is not cut.

In addition, since the floor hinge itself is compact, it can be provided at a low price, and after the floor hinge main body 1 is embedded, a commercially available tile (100 mm) can be used for repairing the floor. It can be beautifully finished.

Compared with the conventional one, only the rack 8 of the piston rod 7 engages with the pinion gear 5, so that the play of the door mounting shaft 2 is reduced and the door 9 itself does not rattle. , Opening and closing becomes smoother.

Further, by adjusting the position of the pawl 16 formed on the peripheral surface of the pawl wheel 14, the opening of the door 9 is set to 90 ° and 18 °.
It can be set to an arbitrary opening such as 0 ° stop.

[Brief description of drawings]

FIG. 1 is a plan view in which a top cover of a floor hinge main body equipped with a stop device of the present invention is removed and a partial cross section is shown.

FIG. 2 is a plan view of a main part, which is a partial cross section in which a door mounting shaft, a pinion gear, a piston rod, and a piston rod feed roll are omitted from FIG.

FIG. 3 shows a state in which a floor hinge is attached to a lower surface of a door, (A) is a side view of a main part with a partial cross section,
(B) is a plan view of a main part.

FIG. 4 is for a door mounting shaft, (A) is a front view,
(B) is a bottom view and (C) is a side view of a main part of only an upper part.

5A and 5B are of the ratchet wheel, in which FIG. 5A is a plan view and FIG. 5B is a front view.

FIG. 6 is of a stopper fitting, (A) is a plan view,
(B) is a rear view.

FIG. 7 is a plan view of a main part of a conventional floor hinge main body equipped with a stop device using a large gear, from which a top cover is removed.

[Explanation of symbols]

 1 Floor Hinge Main Body 2 Door Mounting Shaft 3 Cylinder 4 Oil Tank 5 Pinion Gear 6 Piston 7 Piston Rod 8 Rack 9 Door 10 Eccentric Arm 11 Rectangular Tapered Hole 12 Rectangular Tapered Shaft 13 Regular Square Pillar 14 Claw Wheel 15 Mounting Hole 16 Claw 17 Stopper Metal fitting 17a Hole 18 Shaft hole 18a Pin 19 Protrusion 20 Stop pin 21 Compression coil spring 22 Piston rod feed roll 23 Large gear 24 Claw wheel 25 Claw 26 Stopper metal fitting 26a Hole 27 Protrusion 28 Spring

Claims (1)

[Claims] 1. A pinion gear attached to a door mounting shaft of a floor hinge is meshed with a rack provided on a piston rod, a ratchet wheel is inserted into the door mounting shaft, and one end is pivotally supported and the other ratchet wheel is mounted on the other end. A stopper metal fitting formed with a protrusion that engages with is provided, and a spring interposed between the piston at the base end of the piston rod and the stopper metal causes the piston rod to be pressed in the direction in which the door is closed, and the protrusion and the ratchet wheel are always engaged. Floor hinge stop device characterized by the above.