JPH0122061Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a door chain device that is attached to a door provided at an entrance of a building, such as an entrance, as an auxiliary means for a door lock.

[Conventional technology]

In general, a door chain device, as shown in Fig. 1, has a door chain receiver 2 screwed and fixed to the interior side of a door 1 installed at the entrance of a building, and a vertical A chain bracket 5 is fixed to the frame 3 with screws. And door chain holder 2 and chain bracket 5
The chain 6 is attached to the door 1 and the vertical frame 3 in accordance with the length of the chain 6 which is previously connected to the chain bracket 5 after the door 1 is attached at the site.

[The problem that the invention is trying to solve]

However, due to manufacturing errors in the length of the door chain, not only is it difficult to position the chain holder and chain bracket when installing them, but also the chain holder and chain bracket may have excess length due to installation errors. There was a problem that it ran out and ran out. In order to solve this problem, it has been considered to make the hole for screw insertion of the chain bracket into an elongated hole, but in this state, the problem remains that the appearance after screw insertion is extremely poor, and the door It was not desirable from the aesthetic point of view.

The present invention solves the above-mentioned problems and provides a door chain device with a simple structure that can easily position and fix the door chain according to the length of the chain without compromising the appearance of the door chain after installation. The purpose is to

[Means for solving problems]

In the present invention, the base end of a chain 6 is connected via a pin 13 to a chain bracket 5 fixed to a vertical frame 3 of a door frame, and a hanger 15 connected to the tip of the chain 6 is attached to a chain bracket 5 fixed to a vertical frame 3 of a door frame. In a door chain device that is removably engaged with an engagement elongated hole 11 of a chain receiver 2 fixed to a side surface, a protrusion 7 protruding from the inner peripheral surface of the vertical frame 3 is provided with an outdoor side surface of the protrusion 7. A pair of upper and lower elongated holes 9 which are long in the vertical direction are formed between the sealing material attachment protrusion 8 protruding from the frame 3 and the inner circumferential surface of the vertical frame 3. A seat plate in which a screw 20 inserted through an elongated hole 9 projects from the outdoor side surface of the protrusion 7, and the protrusion is fitted between the protrusion 8 on the outdoor side surface of the protrusion 7 and the inner peripheral surface of the vertical frame 3. 18, the chain bracket 5 and the seat plate 18 are tightened, and the protrusion 7 is fitted between the chain bracket 5 and the seat plate 18, and the chain bracket 5 is fixed to the indoor side surface of the protrusion 7 so that its position can be adjusted in the vertical direction.

[Effect]

In the door chain device according to the present invention, a pair of elongated holes 9 that are long in the vertical direction are formed in a protrusion 7 that protrudes from the inner circumferential surface of a vertical frame 3 of a door frame, and a chain whose position is adjusted on the indoor side surface of the protrusion 7 is formed. Support the bracket 5,
The screw 20 inserted into the round hole 17 of the chain bracket 5 is passed through the elongated hole 9 and tightened into the screw hole 19 of the seat plate 18. It is sufficient to make the hole 9 into an elongated hole 9 and add a seat plate 18 having a screw hole 19.The round hole 17, elongated hole 9, and screw hole 19 can be machined in the bracket 5, vertical frame 3, and seat plate 18 at the factory. Although the configuration is simple, these holes do not need to be modified after installation of the door 1, and screws 20 can be installed on site.
All you have to do is loosen the bracket 5 and adjust the position of the bracket 5 in the vertical direction. During this adjustment work, the seat plate 18 was fitted between the protrusion 8 and the inner peripheral surface of the vertical frame 3, so that the seat plate 18 was Coupled with the fact that there is very little movement in the left and right directions, positioning can be adjusted accurately and easily.
Bracket 5 and door 1 according to the length of chain 6.
It is possible to easily optimize the relative position of the chain bridge 2 fixed to the chain bridge 2. Furthermore, in the present invention, since the holes for inserting the screws 20 of the bracket 5 fixed to the inner side surface of the protruding portion 2 of the vertical frame 3 are round holes 17, when these holes are made into elongated holes, the screw heads are This eliminates the unsightly appearance of part of the hole being hidden by the door, and improves the appearance of the door frame.

〔Example〕

FIGS. 2A, B through 4 show a first embodiment of the present invention. In these figures, 1 is a door, and 3 is a vertical frame provided on the door frame facing the free end side of the door 1. A protrusion 7 for a door stopper is formed protruding from the indoor end of the inner circumferential surface of the vertical frame 3, and a pair of opposing seals protruding from the outdoor surface are provided at the tip of the protrusion 7. A protrusion 8 for attaching a material is formed at the base of the protrusion 7, and an elongated hole 9 for attaching a chain bracket 5 is formed at the base of the protrusion 7.
It is arranged in between and is perforated in two places in the vertical direction. The elongated hole 9 is formed by factory processing so as to be elongated in the vertical direction. Further, 2 is a chain support, which is similar to the conventional one, and the chain support 2 has an engagement elongated hole 11 with a wide hook attachment/detachment part 10 at one end. The chain bracket 5 has a hanger support part 12 formed at its upper end, the proximal end of the chain 6 is connected with a connecting fitting 14 via a pin 13 at the center in the vertical direction, and a hanger 15 is attached to the distal end of the chain 6. are connected via a connecting fitting 16, and round holes 1 for screw insertion are provided at the top and bottom.
7 are formed to be biased toward one side in the left-right direction. 18 is a seat plate provided with screw holes 19 at positions corresponding to the round holes 17 of the chain bracket 5, and 20 are screws for attaching the chain bracket 5.

In the embodiment including the above-mentioned members, a door frame for attachment is fixed to the entrance of a building, and the door 1 is attached to the door frame with a hinge so that it can be opened and closed. Thereafter, as in the conventional case, the chain support 2 is fixed to a required portion such as the vertical stile 21 on the free end side of the door 1 with screws so that the engagement elongated hole 11 extends in the vertical direction. Further, the screw 20 was inserted from the indoor side into the round hole 17 of the chain bracket 5 and the elongated hole 9 provided in the protrusion 7 of the vertical frame 3 in advance at the factory, so that the protrusion 7 of the screw 20 protruded to the outside surface of the room. The screw hole 19 of the seat plate 18 in which the protrusion is fitted between the protrusion 8 and the inner peripheral surface of the vertical frame 3
The chain bracket 5 is attached to the indoor side surface of the protrusion 7 by screw-fitting the chain bracket 5. After installing the vertical frame 3 and the door 1, loosen the screws 20, and in this state, attach the hanger 15 connected to the tip of the chain 6.
is slidably engaged with the engagement elongated hole 11 from the hook attachment/detachment part 10 of the chain holder 2, and the chain holder 2 and the chain bracket 5 are arranged in a relative position where the length of the chain 6 is appropriate. The chain bracket 5 is moved vertically to adjust its position. That is, the position of the chain bracket 5 can be adjusted within the range in which the screw 20 can move within the elongated hole 9 of the protrusion 7. Finally, by tightening the screws 20, the protruding strip 7 is sandwiched between the seat plate 18 and the chain bracket 5, and the chain bracket 5 is fixed to the indoor side surface of the protruding strip 7.

The second embodiment of the present invention, as shown in FIG.
By using a seat plate 22 having an angled cross section and bringing the bent side 23 of the seat plate 22 into contact with the inner periphery of the vertical frame 3, displacement of the seat plate 22 is reliably prevented. It should be noted that the configuration of the second embodiment other than the above is the same as that of the first embodiment, so a description thereof will be omitted.

[Effect of idea]

The present invention has the above-mentioned structure, in which a pair of vertically long elongated holes are formed in the protrusion protruding from the inner circumferential surface of the vertical frame of the door frame, and the protrusion is supported on the indoor side surface of the protrusion. The screw inserted into the round hole of the chain bracket is passed through the elongated hole and tightened to the seat plate, and the elongated hole, the round hole of the bracket, and the screw hole of the seat plate are machined at the factory. Since the chain bracket can be attached to the vertical frame in advance, it is possible to accurately and easily adjust the position of the chain bracket at the installation site.
That is, compared to the conventional structure, the hole in the protrusion of the vertical frame is made into an elongated hole, and a seat plate with a screw hole is added. The seat plate is fitted between the protrusion and the inner circumferential surface of the vertical frame using the protrusion for attaching the sealing material provided in the frame, so that the seat plate does not move horizontally when assembling or adjusting the position of the chain bracket. There is little movement, which improves work efficiency, and if round holes, oblong holes, and screw holes are provided in the bracket, vertical frame, and seat plate at the factory, these holes can be corrected on site after the door is installed. This eliminates the need to do this, improves workability, and makes it easy to optimize the relative position between the chain bracket and the chain holder fixed to the door according to the length of the chain. The holes for screw insertion of the chain bracket fixed to the side are round holes, so when these holes are made into elongated holes, a part of the hole is visible without being hidden by the screw head, which is an unsightly problem compared to conventional ones. is gone,
This makes the door frame look much better.

By providing a vertically long elongated hole in the protruding part of the vertical frame, even if the protruding part has a narrow width and has a protruding part in the thickness direction from the protruding part, it can be easily removed. A long hole can be formed in the
This has many excellent effects, such as being able to compensate for the decrease in strength of the protruding portion due to the formation of the elongated hole with the seat plate.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of an example of a conventional door chain device as seen from the indoor side, and FIGS. 2A and B are front views respectively showing a door chain support and a chain bracket of a door chain device according to a first embodiment of the present invention. 3 is a cross-sectional view of the door at the chain bracket attachment portion, FIG. 4 is a longitudinal cross-sectional view of the chain bracket attachment portion, and FIG. 5 is a cross-sectional view of a door chain device according to a second embodiment of the present invention. 1...door, 2...chain holder, 3...vertical frame,
4... Hinge, 5... Chain bracket, 6...
Chain, 7...Protrusion, 8...Protrusion, 9...
Elongated hole, 10... Hang attachment/removal part, 11... Engagement elongated hole, 12... Hang support part, 13... Pin, 14
...Connection fitting, 15...Hanging fitting, 16...Connection fitting, 17...Round hole, 18...Seat plate, 19...Screw hole, 20...Screw, 21...Vertical stile, 22...Angle shaped seat plate, 23...bent side.

Claims (1)

[Claims for Utility Model Registration] (1) A chain bracket 5 fixed to a vertical frame 3 of a door frame, the base end of a chain 6 being connected via a pin 13, and a hanger connected to the tip of the chain 6. 15 is removably engaged with the engagement elongated hole 11 of the chain receiver 2 fixed to the indoor side surface of the door 1. A sealing material attachment protrusion 8 protruding from the outdoor side surface of the protrusion 7
A pair of upper and lower elongated holes 9 are formed between the inner peripheral surface of the vertical frame 3 and a pair of elongated holes 9 that are long in the vertical direction, and the screws 20 inserted through the round holes 17 of the chain bracket 5 and the elongated holes 9 are inserted into the protrusions. Protrude from the outdoor side of 7,
The protrusion is tightened to the screw 19 of the seat plate 18 fitted between the protrusion 8 on the outdoor side surface of the protrusion 7 and the inner circumferential surface of the vertical frame 3, and the chain bracket 5 and the seat plate 18 tighten the protrusion 7. A door chain device characterized in that a chain bracket 5 is fixed to the indoor side surface of the protrusion portion 7 so as to be vertically adjustable. (2) The door chain device according to claim 1, wherein the seat plate is formed to have an angular cross section such that the bent piece 23 comes into contact with the inner peripheral surface of the vertical frame 3.