JPH10220101A - Door closer for gate door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a door closer function easily to a conventional gate door later on by providing the shaft of a damper mechanism to a lower portion of a door closer, the fitting portion of a lower part of the shaft to the upper portion of a joint member, and a chamber for covering the hinge of a gate post in a lower portion. SOLUTION: A hinge 2 is attached to a gate post, and the main body of a closed is attached to a gate door. A joint portion 3 is provided for coupling a hinge 2 to the main body of closer. A fitting and inserting chamber 31 for fitting to the shaft 21 of the hinge 2 is provided in the joint portion 3, a partially notched hole 32 is formed to permit the insertion and fixation for a supporting shaft 2A of the hinge 2. A square hole 33 is drilled in the upper half of a joint portion 3 to permit the fitting and insertion of a shaft 51 having a square cross section, which is fixed to a damper mechanism of the main body of closer, to the square hole 33. In the attaching method, a gate door is pulled out from the hinge 2 of the gate post and the hinge at the lower side of the gate door is replaced with the main body of the closer. The hinge 2 at the lower side of the gate post is covered with the joint portion 3, and the supporting portion 2A is inserted to the hole 32. The shaft 51A is inserted to the square hole 33, and the gate door is installed to the gate post.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door closer for a gate in which a spring mechanism for generating a self-closing force and a hydraulic mechanism for generating a braking force when the door is automatically closed can be additionally mounted on the gate.

[0002]

2. Description of the Related Art As shown in FIG. 4, for example, a conventional gate is provided with a hinge (bearing) 101 provided on a gate post 100.
Hole 103A of hinge 103 attached to gate 102 at 1A
Is simply inserted and attached, and is pushed and opened by hand to open and close.

For such a gate, a door-closed door closer equipped with a spring mechanism as a closer function and a damper mechanism for gradually releasing the energy of the spring to prevent a rapid closing operation has been developed. .

[0004]

When a door closer is attached to a gate having such a structure, there is no problem if the door closer is attached to the door from the beginning. However, a simple hinge without these functions is used. There are no gates to which such a function is applied even if they are later replaced with ones having these functions, or even if such replacement is required, the replacement work becomes large and the cost increases. In addition, there is a problem in strength when retrofitted, and when it is applied to various various types, various types must be prepared in advance according to each type.

In view of the above circumstances, an object of the present invention is to provide a door closer which can easily add a closer function to various types of gates at a relatively low cost.

[0006]

That is, the present invention provides a door closer having a spring mechanism for generating a self-closing force and a damper mechanism for generating a braking force when the gate is closed between the gate post and the gate. A door connected to the damper mechanism, a shaft connected to the damper mechanism is provided at a lower end portion of the closer main body, and a fitting protrusion or a fitting fit to a fitting hole or a fitting protrusion formed at a lower portion of the shaft. A joint member having a fitting hole at an upper portion and a lower portion provided with a chamber for covering a hinge of the gate post is provided.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a door closer for a gate according to the present invention. The door closer includes a joint member 3 inserted into a lower (or upper) hinge 2 attached to a gate post 1, and a gate 4. And a closer main body 5 screwed to the main body. In the drawing, reference numeral 6 denotes a hinge which is conventionally attached and used as it is.

[0008] The joint member 3 is a hinge 2
And a closer to the closer body 5 according to this embodiment. As shown in FIG. 2, a substantially cylindrical member is used. That is, the joint member 3 is formed with a fitting chamber 31 which is hollowed out so as to cover the shaft 21 of the hinge 2 entirely from above in the lower half, and a part of the fitting chamber 31 is notched. A hole 32 is formed, and the support 2A of the hinge 2 is inserted and fixed. In the upper half of the joint member 3, a square hole 33 is formed on the upper surface side.
The shaft 51A is fitted.

The closer body 5 shown in FIG. 3 is of a hinge type composed of a substantially cylindrical body 5A and a blade 5B, and is screwed to the gate 4 with the blade 5B. In addition, a shaft 51 is provided at the center of the main body 5A, and a damper mechanism 52 is provided. The damper mechanism 52 has a built-in piston (not shown) that moves up and down when the hinge is rotated by opening and closing the door, and generates a braking force by the pressure of oil filled therein.

A shaft 51A having a square cross section is provided integrally with a lower portion of the shaft 51, and projects vertically downward from the main body 5A. A spring mechanism 53 provided with a coil spring C for generating a door closing force for closing the opened gate 4 is disposed immediately below the damper mechanism 52 inside the main body 5A.

Next, a method of mounting the door closer of the embodiment to the gate will be described. First, as shown in FIG. 1, the gate 4 is pulled out from the hinge 2 on the side of the gate post 1 and the lower hinge 6 is removed (FIG. 1 shows the state after the removal), and the closer body 5 of this embodiment is shown. Screw. Next, the joint member 3 is attached to the lower hinge 2 on the side of the gate post 1 so as to cover it from above. At this time, as shown in FIG. 2, the support portion 2A of the hinge 2 is inserted into the hole 32. Thereafter, the shaft 51A of the closer body 5 is inserted so as to be fitted into the square hole 33 of the joint member 3, and the gate 4 is attached to the hinge 2 of the gate post 1 side. At the same time, the hinge 6 on the upper side of the gate 4 is also inserted and attached to the hinge 2 on the side of the gate post 1.

In this embodiment, the shaft is provided on the closer side and the square hole is provided on the joint member side.
These shafts and square holes may be respectively attached to members opposite to those in this embodiment.

[0013]

As described above, according to the present invention, the shaft connected to the damper mechanism is provided so as to protrude from the lower end of the closer body, and the fitting hole or the fitting projection formed in the lower portion of the shaft. The upper part has a fitting protrusion or a fitting hole that fits into the upper part, and the lower part has a joint member provided with a chamber that covers the hinge of the gate post. Can be retrofitted at relatively low cost.

Further, according to the present invention, if the hinge type is used, the door closer is mounted via a joint member, so that it can be widely applied to various types.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a door closer for a gate according to the present invention.

FIG. 2 is an explanatory view showing a state of attachment to a joint member according to the present invention.

FIG. 3 is a schematic configuration diagram showing a door closer body according to the present invention.

FIG. 4 is a schematic perspective view showing a conventional gate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gate post 2 Hinge 3 Joint member 31 Fitting room 32 Hole 33 Square hole 4 Gate 5 Door closer 51A Shaft 6 Hinge

Claims (1)

[Claims] 1. A door closer for a gate, wherein a door closer equipped with a spring mechanism for generating a self-closing force and a damper mechanism for generating a braking force when the gate is closed is additionally mounted between the gate post and the gate, A shaft connected to the damper mechanism is provided at a lower end portion of the closer body, and a fitting protrusion or a fitting hole fitted to a fitting hole or a fitting protrusion formed at a lower portion of the shaft is provided at an upper portion,
A door closer for a gate, comprising a joint member provided at a lower portion with a chamber for covering a hinge of the gate post.