JP2020204150A - Replacement method of door closer - Google Patents

Abstract

To provide a replacement method of a door closer which makes it possible to provide a quick replacement thereof at the time of failure.SOLUTION: A longitudinal slot is formed at a region including therein a position of a mounting screw of a first door closer, a replacement bracket 30 and a replacement plate 40 are used which have a screw hole formed at the position of a mounting screw of a second door closer to fix the replacement bracket such that the replacement bracket is superposed on a frame body 10 of an entrance after removing the mounting bracket of the arm of the first door closer from the frame body and a fixing screw is screwed into the frame body through the longitudinal slot, the mounting bracket of the arm of the second door closer is mounted on the frame body by a screw hole and a mounting screw of the replacement bracket, the replacement plate is superposed on the door after the body of the first door closer is removed from the door and a fixing screw is screwed through the longitudinal slot to fix the replacement plate to the door, and the body of the second door closer is mounted by screwing the mounting screw.SELECTED DRAWING: Figure 4

Description

The present invention relates to a method for replacing a door closer, and more particularly to a method for replacing a door closer so that it can be replaced quickly in the event of a failure.

For example, doors are often provided at the entrances and exits of rooms. In this case, a structure in which the door is connected to the frame provided at the doorway by hinges so that it can be opened and closed is widely adopted, but in such a structure, when the door is closed violently, a loud impact sound is generated and surprises the people around. Sometimes.

Therefore, a door closer (sometimes called a "door checker") is provided between the frame of the doorway and the door to limit the opening / closing speed of the door and suppress the impact noise (the impact noise is suppressed). Patent Document 1, Patent Document 2, Patent Document 3).

Japanese Unexamined Patent Publication No. 2013-151818 Japanese Unexamined Patent Publication No. 2014-218775 Jikkenhei 06-001675

By the way, as a door closer, in addition to a commercially available general-purpose door closer, there is a door closer (called a "universal type door closer") having a shape and structure corresponding to the installation situation.

Since the positions of the mounting screws are the same for all types of general-purpose door closers, even if a failure occurs, a commercially available door closer can be purchased and easily replaced. However, unlike the general-purpose type, the position of the mounting screw is unique in the universal door closer, so if it breaks down, it is necessary to order the same universal door closer, and the replacement is completed. It takes a long time to do it.

In view of such a problem, it is an object of the present invention to provide a method for replacing a door closer so that the door closer can be replaced quickly in the event of a failure.

Therefore, in the method of replacing the door closer according to the present invention, the mounting screw is attached to the first door closer at a position unique to the frame and the door, and the mounting screw is at the same position with respect to the frame and the door. A method for replacing a door closer so as to replace it with one second door closer selected from a group of second door closers to be mounted on the door closer, including the mounting position of the mounting screw of the first door closer. Using a replacement bracket and a replacement plate in which a slotted hole is formed at the position and a screw hole is formed at the mounting position of the mounting screw of the second door closer, the first from the frame body of the doorway. The door closer arm mounting bracket is removed, the replacement bracket is placed on the frame after removing the arm mounting bracket, and the screw hole of the arm mounting bracket of the first door closer of the frame is The fixing screw is screwed through the elongated hole to fix the replacement bracket, and the mounting bracket of the arm of the second door closer is framed by the screw hole and the mounting screw of the replacement bracket. On the other hand, the main body of the first door closer is removed from the door, and the replacement plate is placed on the door after the main body of the first door closer is removed, and the first door closer of the door is attached. The fixing screw is screwed into the screw hole for mounting the main body through the slotted hole to fix the replacement plate to the door, and the mounting screw is screwed into the screw hole of the replacement plate to be the first. A method of replacing a door closer, characterized in that the main body of the door closer of 2 is attached.

One of the features of the present invention is to use a replacement bracket and a replacement plate having a slotted hole at the position of the screw hole of the first door closer and a screw hole at the position of the screw hole of the second door closer. , The first door closer is removed from the frame of the door and the doorway, and then the replacement bracket and the replacement plate with the slotted holes and the screw holes of the mounting screws of the second door closer are formed through the slotted holes. It is fixed to the frame and the door, and the second door closer is attached to the screw holes of the replacement bracket and the replacement plate.

As a result, when a failure occurs in the universal door closer, a commercially available general-purpose door closer can be attached, and the universal door closer can be quickly replaced in the event of a failure.

The type of the door closer is not particularly limited, and can be applied to, for example, a parallel type door closer.

It is a figure which shows an example of the replacement bracket in a preferable embodiment of the door closer replacement method which concerns on this invention. It is a figure which shows one example of the replacement plate in the said embodiment. It is a side view which shows the state after replacement of the said embodiment. It is a top view which shows the state after the replacement which removed the frame body of the said embodiment. It is a figure which shows the 2nd Embodiment.

Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 4 show a preferred embodiment of the door closer replacement method according to the present invention. In the figure, a frame body 10 is provided at the entrance and exit of the room, and a door 11 is pivotally supported on the frame body 10 by a hinge so as to be opened and closed.

Further, a mounting bracket for a universal door closer (first door closer) is attached to the upper side portion of the frame body 10 by mounting screws, and one end of an arm is rotatably connected to the mounting bracket to connect the upper end of the door 11 to the mounting bracket. The main body of the universal door closer is attached to the part, the link is connected to the universal door closer, the link and the arm are rotatably connected by the connecting pin, and the pressure oil and oil and oil are inside the main body of the universal door closer. A spring member is built in to limit the opening / closing speed of the door 11.

The general-purpose door closer (second door closer) 20 has the same structure as the universal door closer, except that the mounting screw is the same as that of other general-purpose door closers.

That is, in the general-purpose door closer 20, the mounting bracket 21 is provided so as to be attached to the frame body 10 by the mounting screw 22, the main body 23 is attached to the door 11 by the mounting screw 24, and one end of the arm 26 is attached to the mounting bracket 21. The portion is rotatably attached, one end of the link 25 is rotatably attached to the main body 23, and the link 25 and the arm 26 are rotatably connected to each other.

A pressure oil and a spring member are built in the main body of the universal door closer and the main body 23 of the general-purpose door closer 20 to limit the opening / closing speed of the door 11, but the structure is known. Since it is the same as the above, a detailed description will be omitted.

When the universal door closer breaks down, the main body of the universal door closer is removed from the door 11, and the arm mounting bracket is removed from the frame 10.

On the other hand, the replacement bracket 30 and the replacement plate 40 are manufactured in advance. The replacement bracket 30 and the replacement plate 40 are formed with elongated holes 31 and 41 at positions including the mounting positions of the mounting screws of the first door closer, and the mounting screws 22 and 24 of the general-purpose door closer 20 are formed. Screw holes 32 and 42 are formed at the mounting position.

First, the replacement bracket 30 is placed on the frame body 10 after removing the mounting bracket of the arm of the universal door closer, and the screw hole of the arm mounting bracket of the universal door closer of the frame body 10 is inserted through the elongated hole 32. The fixing screw 35 is screwed to fix the replacement bracket 30 to the frame body 10, and the mounting bracket 21 of the arm 26 of the general-purpose door closer 20 is provided by the screw hole 32 and the mounting screw 22 of the replacement bracket 30. Is attached to the frame body 11.

On the other hand, after removing the main body of the universal door closer, the replacement plate 40 is superposed on the door 11, and the fixing screw 36 is inserted into the screw hole for attaching the main body of the universal door closer of the door 11 via the elongated hole 41. After fixing the replacement plate 40 to the door 11 by screwing, the mounting screw 24 is screwed into the screw hole 42 of the replacement plate 40 to mount the main body 23 of the general-purpose door closer 20 to the door 11. , The broken universal door closer can be replaced with a commercially available general-purpose door closer 20.

FIG. 5 shows a second embodiment, in which the same reference numerals as those in FIGS. 1 to 4 indicate the same or corresponding portions. In this example, the replacement bracket 30 and the cover 50 having a concave cross section covering the screws and screw holes of the mounting bracket 21 are attached to the replacement bracket 30 and the mounting bracket 21 by magnets to improve the appearance of the door closer 20. I am trying to improve it.

10 Frame 11 Door 20 General-purpose door closer (second door closer)
30 Replacement bracket 40 Replacement plate

Claims (2)

A first door closer whose mounting screw is mounted in a unique position with respect to the frame and door is selected from a group of second door closers in which the mounting screw is mounted in the same position with respect to the frame and door. It is a method of replacing a door closer that is replaced with one second door closer.
Slotted holes (31, 41) are formed at positions including the mounting positions of the mounting screws of the first door closer, and screw holes (32, 42) are formed at the mounting positions of the mounting screws of the second door closer. Using the formed replacement bracket (30) and replacement plate (40),
The mounting bracket of the arm of the first door closer is removed from the frame body (10) of the doorway, and the replacement bracket (30) is placed on the frame body (10) after the mounting bracket of the arm is removed. The fixing screw is screwed into the screw hole of the mounting bracket of the arm of the first door closer of the frame body (10) via the elongated hole (31) to fix the replacement bracket (30). The mounting bracket (21) of the arm (26) of the second door closer (20) is attached to the frame (10) by the screw hole (32) and the mounting screw (22) of the replacement bracket (30). on the other hand,
The main body of the first door closer is removed from the door (11), and the replacement plate (40) is placed on the door (11) after the main body of the first door closer is removed, and the door (11) is overlapped. ), The fixing screw is screwed into the screw hole for mounting the main body of the first door closer via the elongated hole (41) to fix the replacement plate (40) to the door (11). A door closer characterized in that a mounting screw (24) is screwed into a screw hole (42) of a replacement plate (40) to mount the main body (23) of the second door closer (20). How to replace. A first door closer whose mounting screws are mounted in a unique position with respect to the frame and door is selected from a group of second door closers whose mounting screws are mounted in the same position with respect to the frame and door. A replacement jig consisting of a replacement bracket and a replacement plate used when replacing one second door closer.
The replacement bracket (30) and the replacement plate (40) have elongated holes (31, 41) formed at positions including the mounting positions of the mounting screws of the first door closer, and the second door closer. A door closer replacement jig characterized in that screw holes (32, 42) are formed at the mounting positions of the door closer mounting screws.

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