JPS608040Y2 - door device - Google Patents

Description

[Detailed description of the invention] This invention relates to a door device installed at an opening in a building or car body, etc., and in particular has escape deformability that ensures safety when the building or car body receives an external impact. This relates to door devices.

In the event of a disaster, such as when the walls of a building are deformed by the vibrations of an earthquake, or the panels of a car body are deformed by a vehicle collision, in many cases it is difficult to avoid that the door frame will also be deformed due to the external force. In this case, if the degree of deformation is large, it will be difficult to disengage locking members such as the door bounce latch or key lock deadbolt, and as a result, bystanders may be trapped inside the door. There is a high risk that being trapped will increase secondary disasters.

For this reason, among the characteristics of the door device, the difficulty of releasing the lock in the event of an abnormality due to external impact is extremely important from the point of view of safety. It is desirable to ensure safety in the design and construction of locking devices.

The present invention has been developed to appropriately respond to such requests.In other words, the purpose of the present invention is to prevent disasters occurring after the occurrence of disasters, within the range of disasters that can normally occur.
To provide a door device having escape deformability and capable of reliably releasing a lock.

Hereinafter, the present invention will be explained based on an illustrated embodiment.

As shown in FIGS. 1 to 5, the door to be locked by the device of the embodiment includes an upper frame 2, a lower frame 3, and a left side frame that constitute the four peripheries of the passage opening of the leading wall 1 of the building. 4, an opening/closing side frame 5 on the right side, and a door body 6 fitted on the front side of the frame surface, that is, on the front side in FIG.
The left end of the door body 6 is connected to the left side frame 4 at two locations, upper and lower, by a hinge 7.

Therefore, the periphery of the back side of the door body 6 is buffered and sealed by the sponge rubber ring 8 fitted in the groove in the intermediate depth of each of the frames 2 to 5, and the door body 6 is opened and closed. On the side end surface, there is an opening/closing side frame 5 forming an opening/closing side wall surface of the passage opening.
There are nine decorative covers in the shape of a cross-section that overlap and protrude in front of the main body.

Furthermore, a locking mechanism 10 is installed inside the door body 6 at an intermediate height near the end on the opening/closing side. The operating handle 13 of the locking mechanism 10 protrudes from the surface of the door body 6, and as a result,
The door latch 11 is operated and driven by the operating handle 13, and the deadbolt 12 is operated by a key cylinder (not shown) near the operating handle 13.

By the way, the front half of the opening/closing side frame 5, which has a U-shaped cross section, is located at multiple locations in the height direction (in the figure, at one location at the closest height above the locking mechanism 10). only)
The spacer piece 1 is fitted with a mounting bracket 14 consisting of two mounting screws each.
5 (see Figure 6) are screwed, and the equally spaced pieces 15
is formed from a single flat long plate with medium rigidity and a bent shape that is relatively prone to plastic deformation, and has a long groove 15d formed in the upper edge of the spacing piece 15 in the shape of a notch. It is fixed with fixtures 14 such as the above two screws passed through in parallel.

This spacing piece 15 has a shape in which a fixed mounting piece 15a and a movable mounting piece 15b, which are formed in the lower and upper parts in a parallel direction, are connected by an intermediate piece 15c that is inclined vertically. The above-mentioned notched long groove 15d and the fixed mounting piece 15a are formed with mounting holes 15e, respectively.

Furthermore, a door stop frame 16 that has approximately the same length as the opening/closing side frame 5 and overlaps the inner surface of the front half thereof is fixed to the fixed attachment piece 15a of the spacing piece 15 with a fixture 17 such as a screw. ,
The door frame 16 has three rows of horizontal plates 16a, 16b, and 16c.
is a beam material continuously formed to have an S-shaped cross section, and the front and rear horizontal plates 16a, 16c are parallel to the opening/closing side frame 5 with a slight gap between them, and the intermediate horizontal plate 16b is The door latch 11 as a locking member in a locked position
This acts to block the deadbolt 12.

Note that there is a space between the end surface of the intermediate horizontal plate 16b on the side of the door body 6 and the end surface of the door body 6 due to crushing deformation of the frame surface calculated based on the earthquake seismic intensity expected for the building location and the strength of the building structure. A corresponding clearance gap is provided, but the slit 18 formed on the front side of this gap is covered with the decorative cover 9 and is not visible from the outside.

In the device of the embodiment configured in this way, in the normal state when assembled into a building, the door latch 11 and the dead bolt 12, which are locked members, are attached to the horizontal plate 16b in the middle of the door stop frame 16. Since the door is engaged and blocked, the locking operation is performed reliably in the same way as a regular door.

If the frame surface is greatly crushed by an external impact from an earthquake, the tips of the door latch 11 and deadbolt 12, which serve as locking members, may be damaged laterally, as shown by the chain lines in FIG. 6 and in FIG. The spacer piece 15 undergoes plastic deformation due to the extruded door stop frame 16, stretches in the vertical direction, and collapses. This reduces the dimension in the thickness direction, so the door stop frame 16 approaches the opening/closing side frame 5. As a result, the length of engagement between the door latch 11 and deadbolt 12 as locking members and the intermediate horizontal plate 16b is small, so even if the unlocking operation is not activated, the door will remain firmly in place. The door can be opened by pushing the body 6 open, and if the unlocking operation is even slightly possible, the door can be opened easily and the people present can safely evacuate.

The spacing piece 15 may have any shape as long as it is easily crushed and deformed in the thickness direction by an impact from the door stop frame 16 side. It may be attached using a long hole.

As described above, according to the door device having escape deformability according to the present invention, the door stop frame that engages with the locking member of the door body is made of an interval piece that causes escape deformation (plasticity) due to external impact. Since it is held on the opening/closing side frame in a floating manner, even if the door frame is severely crushed and deformed in the event of a disaster, the door can be reliably unlocked. This has the effect of sufficiently ensuring the safety of the locking device.

In addition, according to the present invention, even if the side end surface of the door body is deformed to incline due to an external impact, the door stop frame that the door body directly engages with is approximately the same length as the door body. When the inclined upper or lower corner of the door body presses a part of the door stop frame, escape deformation occurs in the spacing piece and the door stop frame retreats, making it possible to open the door body and improving safety.

In addition, since the gap piece is formed by bending a single flat long plate, it ensures escape deformation due to external impact and improves safety.Furthermore, the latch of the door body is Since it is engaged with a door stop frame that is separate from the door stop frame, the shape of the engaging part of the door stop frame is not restricted by the shape of the gap piece mentioned above, and can be freely selected, and standard products can be used. It has excellent practical effects such as obtaining

[Brief explanation of the drawing]

Fig. 1 is a front view of a door locking device having escape deformability showing an embodiment of the present invention, Fig. 2 is a side sectional view taken along the line ■-■ in Fig. 4 is a partial front sectional view taken along the line ■-IV in FIG. 3, FIG. 5 is a partial side sectional view taken along the line
The figure is a perspective view of the spacing piece, and FIG. 7 is an operational view of the right end portion of FIG. 3. 2...Top frame, 3...Bottom frame, 4...
...Side frame, 5...Opening/closing side frame, 6...
Door body, 7... Hinge, 9... Decorative cover, 11... Door latch, 15... Spacing piece, 16... Door stop frame, 18 ······slit.

Claims (3)

[Scope of utility model registration request] (1) The opening/closing side has an immovable opening/closing side wall surface constituting the inner circumferential edge of the opening opened/closed by the door body, and a retaining part in which a locking member that moves forward and backward from the opening/closing side end surface of the door body is engaged. A gap formed by forming a long, flat plate into a bent shape that is susceptible to plastic deformation that reduces the dimension in the thickness direction. Mounting pieces are fixed in an overlapping manner through the pieces, and the mounting pieces are bent at a plurality of places on the gap piece and are locked to the opening/closing side wall surface of the inner peripheral edge of the opening and the plate surface of the door stop frame. A door device characterized by: (2) The spacing piece has a shape in which two mounting pieces, each fixed to the back of the door stop frame and the opening/closing side wall surface of the opening to which it is attached, are connected by an inclined intermediate piece. The door device according to claim 1, wherein at least one of the mounting pieces is screwed or riveted to the mounting surface through a long hole. (3) Between the opening/closing side end surface of the door body and the door stop frame, an adequate clearance gap is provided to accommodate the crushing of the door stop frame due to expected external impact, and The body has a structure in which a decorative cover covering a slit formed on the front side of the above-mentioned clearance gap is provided on the side edge of the opening/closing side end face in an overhanging manner.Claim 1 of Claim 1 Door device as described.