JPS5916452Y2 - Earthquake-resistant door frame - Google Patents

Description

[Detailed explanation of the invention] This invention prevents damage to the door and door frame even when a door with a surface lock is moved toward the door frame due to vibrations such as an earthquake. This invention relates to an earthquake-resistant door frame that can be opened without any trouble.

Generally, the relationship between a door to which a surface-mounted lock is attached and a door frame is as shown in FIG. 1, as shown in FIG.

However, it is formed to be slightly larger than the gap C8 between the vertical end face of the door on the open end side and the end face of the door frame opposite this, and the smaller gap C8 is as small as 3 to 4 mm, so it is difficult to prevent earthquakes. If the door moves slightly toward the door frame due to vibrations such as these, the two easily come into contact, damaging the door and the door frame and making it extremely difficult to open the door.

The purpose of this invention is to provide an earthquake-resistant door frame suitable for a door equipped with a surface lock that eliminates the above-mentioned drawbacks.

To explain the embodiment shown in FIG. 2 and below, numeral 1 is a door to which a surface lock 2 is attached inside, and numeral 3 is a right door frame in the vertical direction located on the open end side of the door 1.

A gap C between the vertical end surface 1a of the open end side of the door 1 and the end surface 3a of the right door frame 3 opposing this is the gap C between the vertical end surface 2a of the surface-mounted lock 2 and the end surface of the right door frame 3 opposing this. 3b to be larger than the gap a between them.

In this case, a gap a between the surface lock 2 and the end surface 3b of the right door frame 3
is the gap a in the conventional case from the relationship of the length l of the latch 4 protruding from the surface-mounted lock 2.

Since it cannot be expanded much further, the end surface 1a of the door 1
and the end face 3a of the right door frame 3.

is created using the bent portion 3C of the right side door frame 3.

As shown in FIG. 4, the end surface 3b of the right side door frame 3 facing the surface lock 2 is arranged in the height direction with the surface lock 2 as the center.
A rectangular opening having a dimension m that is sufficiently larger than the height direction dimension of the surface-mounted lock 2 is provided, and a shielding partition member 5 extends over a somewhat wider area than the opening, and the right side door frame 3
It is fixed to the inside of each of the end face 3a and the end face 3d on the indoor side by welding or other methods.

The partition 9 member 5 serves to prevent mortar from entering the rotating cover plate 7 when the right side door frame 3 is fixed to the frame by the mortar filled in the inner space 6.

In the opening with the vertical dimension m of the right side door frame 3, an opening lower a for the latches 4, 4 is provided in the part facing the surface-mounted lock 2, and two opening lowers a are provided on both sides of the longitudinal center part of the opening lower a. A pair of approximately [-shaped] pivoting lid plates 7, 7 are attached which are pivotably connected by hinges 8, 8.

To attach the rotating cover plates 7, 7 to the right door frame 3, attach the rotating cover plates 7, 7 to the right side door frame 3.
As shown in FIG. Loosely tighten the screws 9, 9 on the inside of the rotary cover plate 7, 7.
When a force in a horizontal direction is applied to the rotary cover plates 7, 7, the rotary cover plates 7, 7 are guided by the elongated holes 7d, 7e, slide, and can be rotated at the connecting portion of the hinge 8.

Reference numeral 10 denotes a gasket insertion groove formed in the portion of the rotating cover plate 7 that faces the inner surface of the door 1. If the gasket 11 is inserted into the gasket insertion groove 10, the door 1 and the right side door are connected during normal use. This will help improve the air tightness with frame 3.

When the earthquake-resistant door frame is configured as described above, the door 1 moves toward the right side door frame 3 due to vibrations such as an earthquake, and the door 1
The gap C between the end surface 1a of and the end surface 3a of the right door frame 3 is
Gap a between the end surface 2a of the surface lock 2 and the end surface 3b of the right door frame 3
Since it is formed to be larger, it is possible to prevent the end surface 1a of the door 1 from coming into direct contact with the end surface 3a of the right door frame 3 and being damaged as in the conventional case.

The first contact between the door 1 and the right door frame 3 is when the door 1 contacts the right door frame 3.
When the surface lock 2 moves a distance corresponding to the gap a in the direction of , the end surface 2a of the surface-mounted lock 2 comes into contact with the surface of the hinges 8, 8 of the rotating cover plates 7, 7. .

When the door 1 continues to move toward the right door frame 3 even after the end surface 2a of the surface-mounted lock 2 contacts the hinge 8°8 of the rotating cover plates 7, 7, the end surface of the surface-mounted lock 2 In order to press the rotating cover plates 7, 7 to the right, the rotating cover plates 7, 7 slide while contacting the screws 9, 9 inserted into the long holes 7d, 7e, as shown in FIG. As shown in FIG. 2, the hinges 8, 8 can be bent so as to protrude inside the right side door frame 3, thereby absorbing the relative displacement 4 of the door 1 due to vibrations such as earthquakes.

Therefore, if the length of the displacement absorption of the door 1 by the rotating cover plate is set to be approximately equal to the gap difference c - a between the gap C and the gap a, then the end face of the surface-mounted lock 2 2a and the right side door frame 3σ end surface 3b, the gap a is determined by the length l of the latch 4 and the surface (
= Distance l to the installation center of lock 2.

Even in cases where it is not possible to omit or enlarge the door due to factors such as the above, the door 1 and the right door frame 3 can be removed using a very simple structure.
A sufficient displacement absorbing length can be provided between can be prevented from becoming difficult.

FIG. 5 shows another embodiment of the rotating cover plate attached to the right side door frame 3, in which the rotating cover plate is composed of three parts.

Reference numeral 12 denotes a central rotating cover plate with a latch opening 12a in a portion corresponding to the latches 4, 4 of the surface-mounted lock 2, and hinges 13.13 are provided at both upper and lower ends of the rotating cover plate 12. A vertically movable cover plate 14, 15 that can be bent so as to protrude inside the right-sided door frame 3 is attached.

Upper and lower sides of the one-turn lid plate 14 and the lower lid plate 15cr
Vertically symmetrically inclined sliding slots 14a and 15a are formed in the lower portions of both sides, respectively.

If the rotating cover plate is configured in this way and is slidably attached to the right door frame 3, when the door 1 moves toward the right side door frame 3 due to vibrations such as an earthquake, the center upper moving cover plate 12 is moved in parallel with the surface-mounted lock 2, as shown in FIG.
It is possible to provide a displacement absorption length of the same size as in the embodiment.

In each of the above embodiments, if elastic members (not shown) such as springs are installed at hinges 8 and 13 to provide a restoring force against the displacement of each rotating cover plate, for example, When the external force acting on the rotary lid plates 7, 7 and the central rotary lid plate 12 is removed, these rotary lid plates 7.degree. 12 can be automatically returned to their original positions.

As explained above, this idea is based on the installation of a surface lock (a plurality of rotating cover plates that can be separated from the door frame and moved inside the door frame in the opening part of the door frame facing the end face of the door on the J side). This is an extremely simple structure that prevents damage to the door and allows the door to open and close without any hindrance even if the door is moved toward the door frame due to vibrations such as an earthquake. Achieve the desired effect.

[Brief explanation of drawings]

Figure 1 is a partial cross-sectional plan view showing the relationship between the door and door frame for installing a general surface lock, Figure 2 is a partial cross-sectional plan view of an embodiment of this invention, and Figure 3 is a rotating lid. FIG. 4 is a perspective view showing one embodiment of the plate, FIG. 4 is a perspective view illustrating the same operation, FIG. 5 is a perspective view showing another embodiment of the rotating lid plate, and FIG. 6 is a perspective view illustrating the same operation. 1...Door, 1a...End face of door, 2...
...Front-mounted lock, 2a... End face of surface-mounted lock, 3.
...Door frame, 3a, 3b...End face of door frame,
7... Rotating lid plate, 7a, 12a... Latch opening, 7 d, 7 e, 14 a, 15
a ------- (for sliding) long hole, 8゜13...
・Hinge, 12... Central rotating cover plate, 14...
...Upper moving cover plate, 15...Lower moving cover plate, a.
...Gap between the surface lock and the door frame, C...Gap between the edge of the door and the door frame, m...Vertical dimension of the opening on the end of the door frame.

Claims (4)

[Scope of utility model registration request] (1) Form the gap between the open end of the door and the opposing door frame to be larger than the gap between the end of the surface-mounted lock attached to the inside of the door and the opposing door frame. , an opening larger than the height of the surface lock is provided in the end face of the door frame facing the surface lock, and a plurality of approximately An earthquake-resistant door frame, which is held in the door frame by slanted long holes provided in the side walls at both ends, and is characterized by having a latch opening in the rotating cover plate portion corresponding to the surface lock. (2) The earthquake-resistant door frame according to claim 1, wherein the rotating cover plate is composed of two upper and lower rotating cover plates connected by hinges on both sides of the latch opening in the width direction. (3) The rotating lid plate is composed of three parts: a central rotating lid plate with a latch opening, and a vertically movable lid plate that is connected to the top and bottom of the lid plate by hinges, and is movable up and down. The earthquake-resistant door frame according to claim 1 of the utility model registration claim, in which long sliding holes are provided on both side surfaces of the upper and lower ends of the lid plate. (4) The earthquake-resistant door frame according to claim 2 or 3, wherein the plurality of rotating lid plates are provided with an elastic member that provides a restoring force against displacement thereof.