JPH0246614Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to the provision of a lock and air seal mechanism in a balanced door.

The so-called balanced door will be explained below based on a diagram showing an example thereof.

That is, FIG. 1 and FIGS. 2a and 2b are explanatory diagrams showing an example of a balance door, in which FIG. 1 is a front view, FIGS. Figure 2a shows the door in a closed state, and Figure 2b shows it in an open state. Figures 1 and 2 a, b
11 is a screen, 12a and 12b are push plates, and 13 is a stile door, which is suspended in the door frame consisting of mullions 14a, 14b and a blind 15 that make up the screen 11. For hanging, there are notches 17 in the upper stile 16a and lower stile 16b of the stile door 13, respectively.
a and 17b are provided, and an arm 18 is provided in the notch, respectively.
a, 18b are interposed, and the arms 18a, 18b
The frame door 13 is held between rotatable support shafts 19a and 19b, one end of which is provided on the B-B' axis, and the other end of the arm is integrated with a rotating shaft 20, and the rotating shaft 20 has an upper part that is free. A dop pivot 21 installed in the eye 15 is supported at its lower part by a floor hinge 23 embedded in the floor surface 22, and is rotatable on the A-A' axis. Also, 24 is near the center of the stile door 13 C
- A sliding pivot provided on the C' axis, the sliding pivot being fixed to the upper part of the upper stile 16a and engaging in the sliding groove 25 provided in the blind 15. Therefore, the frame door 13 can be smoothly slid along the sliding groove 25, and can be rotated around the sliding pivot 24 at any position within the sliding groove 25. Next, the rotating shaft 20 (A-
A' axis), arm support shafts 19a, 19b (B-
B' axis) and sliding pivot 24 (C
-C' axis), the sliding pivot 24 is provided approximately at the center of the frame door 13,
The distance between the rotation shaft 20 and the support shafts 19a, 19b is equal to the distance between the support shafts 19a, 19b and the sliding pivot 24, or the distance between the rotation shaft 20 and the support shafts 19a, 19b is equal to the distance between the support shafts 19a, 19b and the sliding pivot 24. 1
The distance between the frame door 9b and the sliding pivot 24 is set longer than the distance between the frame door 9b and the sliding pivot 24, so that the frame door 13 can be opened perpendicularly to the screen 11 when it is fully open.

Therefore, the push plate 12 is changed from the closed state shown in FIG. 2a.
By pressing a and 12b, the stile door 13 rotates around the sliding pivot 24, and at the same time, the sliding pivot 24 moves in the direction of the arrow into the sliding groove 25.
The arm 18 supports the stile door 13 because it rotates inside.
a, 18b rotate around support shafts 19a, 19b, and the rotating shaft 20 holding the arms rotates to open as shown in FIG. 2b. FIG. 3 is a plan sectional view showing this state, in which the stile door 13 rotates 13', 13'', the opening/closing side end traces a trajectory D when opening/closing, and the sliding pivot 24 rotates 24', 13''. 2
The 4" support shaft 19 moves 19', 19", and the arm 18 rotates 18', 18". Therefore, the stile door 13
The area required for opening and closing is very small.
When the frame door 13 is fully open, it approaches one side of the mullion 14a and is located on the inside and outside of the screen 11.
In addition, in the closed state, the sliding pivot 24 is installed near the center of the stile door, so when wind pressure is applied to the stile door 13, the wind pressure is balanced on the left and right sides of the stile door with the sliding pivot 24 as the center. The stile door 13 will not be blown or half-opened by wind pressure, and since the opening of the stile door 13 rotates around the sliding pivot 24, it can be opened and closed even if the door has a large opening width. It is lightweight, especially when wind pressure is applied to the stile door 13.
Since it is suspended around the sliding pivot 24, wind pressure does not affect the opening and closing of the stile door 13.
It has various features that cannot be expected from a normal open door, such as the opening for egress being smaller than that of a conventional open door.

Therefore, it is suitable to be used at the entrance and exit of an air membrane structure where the internal pressure is higher than the external pressure (this is the same as wind pressure being applied to it), but if it is used as it is, it will completely prevent air leaks. Since the air seal is incomplete, it is impossible to use it in an air membrane structure that must be prevented from leaking.

This proposal was developed in view of the above circumstances, and its gist is that the inside end is fixed with a pivot on both sides of the upper and lower stile doors, and the two-arm link has a guide pin that loosely fits into the outside end vertical slide hole. A connecting arm with a lock pin attached to the tip of only the one on the lower stile side is pivotally fixed between the link intermediate pivot parts, and the other link arm attached to the intermediate pivot part is attached to the Gremont's. It is pivotally connected to the vertical lock bar attached to the rod or door handle, and the lower end of the two-arm link is sandwiched with a seal cushion material whose end comes into contact with the cushion attached to the door abutting part of the mullion. When installing an L-shaped channel that is approximately the length of the upper and lower stile, the lower end of the door is unstable when the door is closed due to the protrusion of the lock pin and sealing material that occurs as the lock bar moves when the door is locked. Another point is that an air seal was created around the door.

This will be explained in detail below based on the drawings.

FIG. 4 shows an overall view of the balance door when the door handle 30 according to the present invention is adopted. 18
It would be inconvenient if they were arranged on the upper and lower end surfaces of the stile door 13 as shown in b, so instead of this, hinge arms 31, 31 that are attached to the surface of the stile door 13 are adopted, but the balance door The hinge function is the same as that described above. FIG. 5 shows a locking mechanism in which this movement is utilized in the present invention, and includes a lock bar 33 that is easily engraved and extends upward and downward relative to a pinion shaft 32 that rotates when the Gremont rod or door handle is operated. 34 Furthermore, the lock bar 35, which is normally carved sideways, engages with the lock bar 35, and the rotation of the pinion shaft 32 causes the lock bar 33,
This is a conventional type in which locks 34 and 35 are locked at the same time. Figures 6 and 7 are plan sectional views when the door is closed, illustrating the seal by the cushion in the present invention.
- Line sectional view, cushion clamping grooves 36, 37 are provided in the mullions 14a, 14b in response to the movement of the stile door 13.
is provided protrudingly, and abutting cushions 38, 39 are provided thereon.
is attached to perform a vertical air seal. Incidentally, air sealing in the vertical and horizontal directions is achieved by seal cushion members 40 and 41 protruding from the upper and lower sides of the frame door 13, as shown in FIG. 7, which will be described later. FIG. 8 shows the link mechanism of the present invention in longitudinal section, front, side, and plane sections at various points of the upper stile 16a and lower stile 16b, and this figure is different from FIGS. 4 and 6. Looking from the other side. 4 in the diagram
2 is a fixed pivot stop 43 on both sides of the upper stile 16a and the lower stile 16b at the inner end (lower part for the upper stile 16a, upper part for the lower stile 16b), and a vertical slide hole 44 drilled in the outer end stile frame. A two-arm link is disposed facing each other with a guide pin 45 loosely fitted into the link 42, and a communication arm 47 is pivotally installed between the intermediate pivot parts 46 and 46 of the link 42. Furthermore, at the tip of the communication arm 47 arranged on the lower stile 16b side, there is a mullion 14a (not shown).
A lock pin 48 is provided which fits into a corresponding lock hole. Another link arm 49 is attached to one of the intermediate pivot parts 46, and its tips are pivotally connected to the lock bars 33, 34.

When the door is closed, when the lock bar 33 is locked (lowered), the lock pin 48 at the tip of the communication arm 47 enters the lock hole provided in the mullion 14a.

On the other hand, in the illustrated example of the lower end of the two-arm link 42, the tip of the guide pin 45 has approximately the upper stile 16a and the lower stile 1.
An L-shaped channel 51 is attached to sandwich a seal cushion material 50 having a length of 6b, and the upper frame is moved by the outward movement of the guide pin 45 when the lock bars 33 and 34 are activated. 16a, and the seal cushion material 50 is made to protrude from the lower stile 16b.

Thus, air sealing of the upper and lower sides of the stile door 13 is achieved. Please note that this seal only works when the door is closed.
At other times, it is contained, so it does not interfere with the movement of the door at all. The L-shaped configuration of the seal cushion material 50 is also for connection to the abutment cushion 39 on the opposite side.

Therefore, the effect of the lock pin 48 stabilizes this part, which is supported by a hinge extended from the rotating shaft 20 and is somewhat unstable under the surface pressure applied to the door, and also provides a complete air seal when the door is closed, thereby preventing air leaks. .

[Brief explanation of the drawing]

1 and 2 a and b are explanatory diagrams showing an example of a balance door, in which FIG. 1 is a front view, FIGS. 2 a and b are cross-sectional perspective views of the main parts of FIG. 1, and FIG. 2a shows the door in a closed state, and FIG. 2b shows the door in an open state. Fig. 3 is a cross-sectional plan view of Fig. 1 showing the operating state, Fig. 4 is an overall view of the balance door according to the present invention, Fig. 5 is an explanatory diagram of the door lock mechanism, and Fig. 6 is an illustration of the door lock mechanism.
Figure 7 is an explanatory diagram of the air seal mechanism according to the present invention,
FIG. 8 is a diagram for explaining the link mechanism according to the present invention. 30...Door handle, 13...Stile door, 31...
...Hinge arm, 32...Pinion shaft, 33,3
4, 35... Lock bar, 14a, 14b... Mulled, 36, 37... Cushion clamping groove, 38, 3
9...Abutment cushion, 40, 41, 50...
Seal cushion material, 16a...upper stile, 16b...
...Lower stile, 43...Fixed pivot stop, 44...Vertical slide hole, 45...Guide pin, 42...Two arm link,
46... Intermediate pivot part, 47... Communication arm, 4
8...Lock pin, 49...Link arm, 51
...L-shaped channel.

Claims (1)

[Scope of utility model registration request] On both sides of the upper and lower stile of the stile door, there is a fixed pivot stop on the inside end, and a two-arm link that loosely fits the guide pin into the vertical slide hole on the outside end. A connecting arm with a lock pin attached to the tip of the chisel is pivoted and installed, and another link arm attached to the intermediate pivot part is pivotally connected to a Gremont rod or a vertical lock bar attached to the door handle. Furthermore, at the lower end of the two-arm link, an L-shaped channel having approximately the length of the upper and lower stile is attached, the seal cushion material being in contact with the cushion attached to the door abutting part of the mullion. A lock and air seal mechanism in a balanced door that is characterized by