JP4808095B2 - Door pressure welding device - Google Patents

Description

  The present invention has advanced functions such as high waterproofness, soundproofing and electromagnetic wave resistance (hereinafter referred to as high function) such as various studios for recording dramas, computer rooms, safe rooms, storages, and entrance doors of various laboratories. The present invention relates to a pressure welding apparatus that tightly and closely contacts a door and a door receiver in order to realize a high function of a door that requires high performance.

  Many proposals have been made for press-contact devices for highly functional doors, and some of them have been put into practical use.

  As a typical structural example of a door sealing device or a pressure welding device serving as a sealing mechanism, a cam receiving-like receiving groove is provided on the door receiving (including the door frame) side, and an outer peripheral surface of the door facing the receiving groove. An eccentric (eccentric) pin or a sliding rod is fitted in the receiving groove, and the pin or rod is rotated forward or backward by the power of a motor or the like to advance or retract to force the door to the door receiving side. It is known that it is attracted and brought into close contact, or the contact is released (see Patent Documents 1 to 4).

  However, the above-mentioned known close contact mechanism (pressure contact mechanism) uses power because the structure or the allowable range of operation is restricted by the thickness of the door and the depth (front-rear width) of the door support. There is a limit to the amount of tightening with a pin or scissors that operate (the amount of stroke and distance from when the door surface comes into contact with the door rest until it comes into close contact), which makes it large and large with a height and width of several meters. There are some aspects that are difficult or impossible to apply to heavy doors.

  That is, in a high-function door such as a hermetic door, in order to ensure airtightness when the door is closed, the door is clamped between the door receiving side or the outer surface of the door that faces the door receiving side. Although the packing is provided, when the door is closed, the packing arranged between the door and the door holder acts to rebound the door that closes. A phenomenon occurs in which the grooves do not fit together and the pressure contact mechanism idles and does not perform pressure contact.

In order to prevent such slipping, the pressure contact mechanism is operated by manually pressing the door to be closed against the rebounding force of the packing against the door receiving side. This is a large and heavy door. Then, it is impossible or almost impossible to press the door against the door receiving side against the repelling force of the packing only by the pressing force by hand.
Japanese Utility Model Publication No. 7-29678 Japanese Patent Laid-Open No. 8-232529 Utility Model Registration No. 2539288 Japanese Utility Model Publication No. 60-89398

  Therefore, in the present invention, a structure suitable for pressing a door having a large stroke until the door comes into close contact with the door support at the end of closing the door, such as a large and heavy airtight door. It is an object of the present invention to provide a door pressure welding apparatus including:

The configuration of the pressure welding apparatus of the present invention, which has been made for the purpose of solving the above-mentioned problems, is a metal door provided with a pressure welding mechanism provided at the entrance and exit, in the interior of the door and the door support on the facing surfaces of the door and the door support. The door holding mechanism is provided with a latch that moves into and out of the door and a latch receiver that receives the advanced latch. On the outer peripheral surface of the door , the door moves from the inside of the door and retreats into the door. the to yoke, co be provided to support inside the door, on the inside of the door, provided with a drive source for the forward and backward movement to the yoke and transmission system, and, Kannuki of the door is provided the receiving door receive the outer peripheral side is made provided the advancing direction before the Kannuki receiving the yoke coming advanced, when closing the door, of advancing the latch closed end the door holding mechanism in the vicinity of the door Placed in a latch receiver Te, after holding the door closed in its position, by letting received inside the yoke being retracted by rotating advance to the advancing operation of the door receiving the Kannuki, a closed that door It is characterized in that it is pushed out and brought into pressure contact with the door receiver.

  In the above-described configuration, the pressure welding apparatus according to the present invention uses an actuator such as a motor or a fluid pressure-resistant cylinder whose output end performs a stroke (or advance / retreat) operation as a drive source. Further, the transmission system is constituted by an articulated link mechanism which transmits the stroke by moving the stroke of the output end into the forward and backward movement of the kanuki. Furthermore, it is preferable that the kanuki provided on the outer peripheral surface of the door is provided on the upper and lower surfaces on the outer peripheral surface of the door and the outer surface on the door receiving side in order to ensure sufficient pressure contact between the door and the door receiving. Depending on the size and shape of the door to be applied, the upper and lower surfaces on the outer peripheral surface or the outer peripheral surface on the door receiving side may be sufficient.

  In a metal door equipped with a pressure contact mechanism provided at the entrance of a recording studio or the like, a cannula that moves forward from the inside of the door on the outer peripheral surface of the door and retracts into the door is inserted inside the door. The door is provided with a drive source and a transmission system for causing the cannula to move forward and backward, while the door receiving the outer periphery of the door where the cannula is provided is advanced. The kanuki is provided in front of the advance direction of the kanuki, and when the kanuki immerses inside the door passes the kanuki, when the door is closed, the kanuki is rotated and advanced. Since the door is closed by pushing the closing door to the door receiving side so that it is pressed against the door receiving side, the door pressure contacting device such as an airtight door with a very simple structure It is possible to provide.

In the present invention, in the above configuration, an actuator such as a motor or a fluid pressure cylinder whose output end performs a stroke (or advance / retreat) operation is used as a drive source, and the stroke operation of the output end is advancing / retracting operation of the cannula in a transmission system. Since the articulated link mechanism that is converted into the transmission is used, a stronger and more uniform pressure contact degree with respect to the door support of the door can be obtained by a pressure contact mechanism having a simple structure.
In addition, the pressure and contact strength between the door and the door holder is strong and uniform, with the kanuki provided on the upper and lower surfaces of the door and on the outer peripheral side of the door receiver, This can be easily realized by providing a receiver.

Next, an embodiment of the pressure welding apparatus of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing an example of a double door provided with a pressure welding device of the present invention and arranged in a double-spreading manner. FIG. 2 is an enlarged cross-sectional view taken along line AA in FIG. FIGS. 3 and 3 are front views showing the configuration of the pressure welding device of the present invention extracted from the door of FIG. 1, and FIGS. 4 to 6 are enlarged cross-sectional views taken along the line BB of FIG. FIG. 4 is a cross-sectional view of the main part for explaining the operation, FIG. 4 is a diagram showing the start of the operation of the pressure welding device, FIG. 5 is a timing when the kanuki of the pressure welding device is advanced and comes into contact with the kanuki, and FIG. FIG. 7 is a cross-sectional view when the pressure welding apparatus of the present invention is completed and pressed by the cannula receiver, and FIG. 7 shows a door for detecting the operation start timing of the pressure welding apparatus of the present invention and holding the door closed in that position. It is a sectional side view for demonstrating the outline | summary of a holding mechanism.

  FIG. 1 is a front view of a double door with the pressure welding apparatus of the present invention applied thereto. Of course, the pressure welding apparatus of the present invention can be applied to a single door or a lateral door. In FIG. 1, 1 is a building frame, 1a is a floor, and 1b is a wall. Reference numeral 2 denotes a door frame provided at the entrance 3 opened in the building wall 1b of the building. In the illustrated example, the two doors 4 and 5 can be opened and closed to the left and right pillars of the door frame 2 by a plurality of hinges 6. Installed on. In this specification, the right door 4 in FIG. 1 is also referred to as a main door 4, and the left door 5 is also referred to as a child door 5. In addition, the entrance / exit 3 provided in a large studio or the like provided with the doors 4 and 5 in the illustrated example, that is, the door frame 2 has an inner width of about 4 to 8 m and an upper and lower width of about 4 to 8 m as an example. In the case of a large doorway, the doors 4 and 5 each have a width of about 2 to 4 m and a height of about 4 to 8 m. It goes without saying that the present invention can be applied not only to such a large door but also to a high-function door provided exclusively for a person's doorway.

  FIG. 2 is an enlarged plan view of the doors 4 and 5 of FIG. 1 with the intermediate portion in the width direction omitted. The doors 4 and 5 shown in FIGS. 1 and 2 to which the pressure welding apparatus of the present invention is applied are provided with functions such as soundproofing and electromagnetic wave shielding. Appropriate soundproofing material, electromagnetic shielding material, etc. are built in, and the same soundproofing material, electromagnetic shielding material is provided between the doors 4 and 5 and between the doors 4 and 5 and the door frame 2. Etc. shall be provided.

  In order to ensure functions such as soundproofing and electromagnetic wave shielding, first, the flat cross section of the door frame 2 is formed in a stepped portion 2a in which the opening front is narrowed in a stepped manner toward the inside of the room. Accordingly, the outer peripheral surfaces of the doors 4 and 5 corresponding to the stepped portion 2a of the door frame 2 are formed as stepped portions 4a and 5a opposite to the stepped portion 2a. Further, the mating part of the doors 4 and 5 does not hinder the opening and closing, and the stepped part 4b of the stepped cross section is configured to mesh with each other so that the boundary end surfaces of the doors 4 and 5 do not become a flat surface. , 5b.

  The stepped portions 2a of the door frame 2 and the stepped portions 4a and 5a corresponding to the doors 4 and 5, respectively, have elasticity mainly composed of a sponge material and the like, and have functions such as electromagnetic shielding properties. Packing 7 and 8 and edge members 9 and 10 that bite into the packing 7 and 8 are provided. In addition, packings 7 and 8 and edge members 9 and 10 having the same meaning as the packings 7 and 8 and edge members 9 and 10 are also provided at the mating portions of the doors 4 and 5. In the present invention, the stepped portion 2a in the door frame 2 and the mating portion of the doors 4 and 5 are portions that function as door supports.

  As described above, when the doors 7 are provided with the packings 7, 8, when the edge members 9, 10 come into contact with the corresponding packings 7, 8 at the end of closing the doors 4, 5, the packings 7, 8 As described above, the door 4 or 5 to be closed is repelled by the resilience, and the pressure welding device may idle.

  Therefore, in the present invention, near the closing end of the doors 4 and 5, specifically, when the edge materials 9 and 10 provided on the doors 4 and 5 come into contact with the corresponding packings 7 and 8, A means for holding the closed doors 4 and 5 is provided as the door holding mechanism 11 illustrated in FIG. 7 as an example. Next, the door holding mechanism 11 will be described with reference to FIG.

  The holding mechanism 11 is provided with a latch and a latch receiver provided opposite to each other between the interior of the doors 4 and 5 near the upper end surface and the lower surface 21A of the frame cover 2A provided on the front surface side of the upper door frame 2. Is a main member and has the following configuration. That is, a vertically oriented rod 11c having a roller 11b at its upper end is urged upward by a spring 11d on a box-shaped or cylindrical casing 11a, and the roller 11b is urged upward by the upper end surface 4a ( 5a) are provided so that they can protrude slightly from each other, and a roller type latch whose top dead center (limit) is determined by a pin 11e is provided inside the upper end of the door 4 and the door 5, respectively, and a receiving groove 11f for receiving the roller 11b. 11g is provided on the side of the lower surface 21A of the cover 2A in the door frame 2. Accordingly, the casing 11a is attached to the inside of the door 4 and the door 5 near the upper ends by slightly protruding the roller 11b serving as a latch from the upper end surface 4a (5a) of the door. Here, it is desirable that the repellency of the spring 11d and the top dead center of the rod 11c can be adjusted. In FIG. 7, S1 is a sensor that detects that the door 4 (5) to be closed has been closed to the position where the holding mechanism 11 operates (the roller 11b has entered the receiving groove 11f). This signal detection becomes a trigger signal for starting the driving of the pressure welding apparatus of the present invention. The installation of the sensor S1 is not limited to the position shown in FIG. For example, when the limit switch movable piece is provided so as to protrude slightly from the upper surface 4a (5a) of the door 4 (5) and the door 4 (5) to be closed reaches the above position, the movable piece of the limit switch is, for example, It is good also as a form hit by the front cover 2A of the door frame 2. FIG.

  Due to the action of the door holding mechanism 11, the doors 4 and 5 which are adjusted at the end of the closing are opened by the repulsive force of the packings 7 and 8 even if the edge members 9 and 10 come into contact with the packings 7 and 8. Therefore, the pressure contact mechanism of the present invention described below has a simple structure, and the large and heavy doors 4 and 5 are reliably and evenly attached to the door support (the door frame 2 in the embodiment). Can be pressed. The pressure welding apparatus of the present invention will be described below with reference to the drawings. In the present embodiment, the doors 4 and 5 are closed by first closing the child door 5 and operating the pressure contact device, and then closing the parent door 4 and operating the pressure contact device. As a matter of course, the doors are opened in the reverse order of closing.

In the example of FIG. 3, the pressure welding device of the present invention is provided at five positions on the main door 4 and two positions on the child door 5, but the number of positions is appropriately determined depending on the size and shape of the doors 4 and 5. You can set it.
The pressure welding device for the main door 4 is on the outer peripheral surface of the door 4 on the outer peripheral surface (the outer surface on the thickness side of the door, the same applies hereinafter) and on the lower both surfaces, and on the outer peripheral surface that mates with the child door 5. It is provided in three places on the side. On the other hand, the child door 5 has the same location on the upper and lower surfaces as the main door 4, but the inside of the side surface that is mated with the main door 4 is a cannula that supports the cannula of the pressure welding device on the main door 4 side. A pressure welding device is formed by providing a receiver 18 (described later).

  The kanuki 12 that can be moved in and out (movable back and forth) with respect to the side, upper and lower surfaces (only the upper and lower surfaces of the child door 5) on the outer peripheral surface of the doors 4 and 5 is the kanuki action section 12a and the action section 12a. The input lever portion 12b and a crossing portion of both portions are formed by a substantially L-shaped member supported by a shaft 13 (see FIGS. 4 to 6).

  The action part 12a of the cannula 12 provided so as to advance and retreat (invade and retract) with respect to the outer peripheral surface of the door 4 and 5 is the outer peripheral surface of the doors 4 and 5 on which the cannula 12 is provided (in FIG. 4 to FIG. 5 in the direction parallel to the upper surface of the door 5 and orthogonal to the thickness direction of the door. In the examples of FIGS. The door 4 (5) advances to the outside of the outer peripheral surface 4a (5a) (see FIG. 5). This advance operation becomes an operation end at a position where the action portion 12a is perpendicular to the outer peripheral surface 4a (5a) of the door 4 (5) (see FIG. 6). Further, the retracted kanuki action portion 12a is moved backward in the direction opposite to the above-described advance operation, and enters the door 4 (5) (see FIG. 4).

  FIGS. 4 to 6 show the operational states of the cannulas 12 protruding from the upper end surface on the outer peripheral surface of the door 4 (5) in order, and the side surface on the outer peripheral surface of the door 4 (5), and Each kanuki 12 provided so as to appear at the lower end surface is also provided inside the door in the same manner as in the examples of FIGS.

Here, the shaft 13 serving as the center of rotation of each kanuki 12 that appears and disappears from each surface of the door indicates that the installation position of the kanuki 12 is on the upper, lower end, or side surface on the outer periphery of the door 4 (5). Even so, it is parallel to the outer peripheral surface 4a (5a) of the part where the kanuki 12 is installed (inside the door) and in the direction in which the door 4 (5) operates at the closing end (the thickness direction of the door). It is provided in an orthogonal direction.
Accordingly, the cannula 12 provided so as to protrude from the side surface on the outer periphery of the door 4 (5) has the appearance shown in FIGS. 4 to 6 in plan view. Moreover, the cannula 12 provided so that it may invade with respect to the lower end surface of the door 4 (5) is the direction which rotated the figure shown in FIGS. 4-6 by 180 degree | times (the top and bottom of FIGS. 4-6). Reversed direction). Reference numeral 13a denotes a bearing that supports the shaft 13 and is provided inside the door 4 (5).

  The above-described Kannuki 12 is pivotally attached 14a to the rear end of the input lever portion 12b, and a stroke operation (advance / retreat operation) is performed at the rear end of the interlock link 14. The tip 15a of the rod 15 is pivotally attached 14b. The operating rod 15 is supported by a slide guide 16 at a tip end 15a and slidably held at a bush-shaped guide 17 so that the stroke operation is not shaken.

  On the other hand, when the action part 12a of the kanuki 12 rotates and advances outside the outer peripheral surface of the door 4 (5), the action part 12a of the kanuki 12 that advances is received in the example of FIGS. Then, it is the cannula receiver 18 provided in the door frame 2. The cannula receiver 18 is formed of a shaft-like body or rod-like body parallel to the shaft 13 that supports the cannula 12, but the point is that the door 4 (5) is received by receiving the action part 12a of the rotating cannula 12 and Any member may be used as long as it has an action of pushing it toward the receiving side (stepped portions 2a and 5a of the door frame 2 and the child door 5). In addition, it is desirable that the cannula receiver 18 has a structure that supports the action part 12a of the cannula 12 by rolling contact in order to reduce and smooth the operation load of the pressure welding device.

  Next, a drive source that causes the kanuki 12 connected to the interlocking link 14 and the operating rod 15 to perform the retracting operation and a transmission system that transmits the output to the operating rod 15 will be described below.

  As illustrated in FIG. 3, the drive sources 19 are respectively provided below the interiors of the doors 4 and 5. In the example of FIG. 3, this drive source 19 is a type that converts the rotation of the motor 19 a into a vertical stroke motion of the output shaft 19 b and outputs it, but can make the transmission rods 24, 25 stroke up and down. If so, the type and structure of the drive source are arbitrary. For example, there is a structure in which the rotation of the motor is taken out by a pinion and the rack is moved up and down by this pinion.

  The operation of the output shaft 19b of the drive source 19 is transmitted to the operating rod 15 connected to the above-described kanuki 12 through a transmission system mainly composed of a connecting link described below.

  The output shaft 19b is connected to an output rod 20 on the same axis. The output rod 20 is slidably supported by the support 20a. Further, the output rod 20 includes an arm 20b orthogonal to the stroke axis, and the distal end of the arm 20b is provided on an extension line of the arm 20b in a laterally long hole 20c provided in the distal end. The relay disk 21 is connected by a pin 21a. Reference numeral 21b denotes a rotating shaft of the disk 21.

  When the actuating rod 20 performs a stroke movement in the upward and downward directions by the output of the drive source 19, the stroke is transmitted to the relay disk 21 via the arm 20b, and the disk 21 is angularly rotated. The rotation of the disk 21 is transmitted to the two conversion links 22 and 23 provided on the circumference of the disk 21.

  Transmission rods 24 and 25 extending upward and downward inside the door 4 (5) are arranged on the distal ends of the conversion links 22 and 23. Reference numerals 24a and 25a denote supports that slidably support the rods 24 and 25.

  Here, the shaft 21b of the relay disk 21 provided inside the door 4 (5), the transmission rods 24 and 25, and the cannulas 12 protruding and appearing on the upper end outer surface and the lower end outer surface of the door 4 (5) are arranged on the same line. ing. For this reason, the operating rods 15 of the cannulas 12 provided at the upper and lower ends of the inside of the door 4 (5) are the same as the transmission rods 24 and 25, respectively. It is directly connected to the tip.

  On the other hand, the kanuki 12 that appears and disappears on the outer surface of the door 4 (the mating side with the child door 5), in this case, each of the three kanukis 12, is connected via a second conversion link 26 that is generally L-shaped. Thus, the stroke motion is transmitted to the operating rod 15 of each kanuki 12.

  Now, in a state where all the cannulas 12 are immersed (retracted) inside the door 4 (5), the arm 20b of the output rod 20 connected to the drive source 19 is at a lower position in FIG. Further, since the two conversion links 22 and 23 connected to the relay disk 21 are also in the inclined posture shown in FIG. 3, the two transmission rods 24 and 25 are also brought to a position attracted to the relay disk 21 side. is there. The L-shaped second conversion link 26 is arranged so that the two links 26 above the relay disk 21 are on the right side and the link 26 below the disk 21 is opposite to the upper link 26. The right side is up.

  In order to make all the cannulas 12 immersed in the inside of the door 4 (5) project on the outer peripheral surface of the door 4 (5), the drive source 19 is driven and the output rod 20 is driven in the example of FIG. Advance upward. The advancement of the rod 20 is converted into the angular rotation of the relay disk 21, and the inclined conversion links 22 and 23 are raised vertically (23 falls). When the conversion links 22 and 23 are in the vertical posture, the transmission rods 24 and 25 to which the conversion links 22 and 23 are connected perform stroke movements upward and downward, respectively, and are connected to the tips of the rods 24 and 25 via the operation rod 15. The upper and lower kanuki 12 are projected at right angles from the outer peripheral surface of the door 4 (5), and the actuating rod 15 is connected to the intermediate portion of the rods 24 and 25 via the second conversion link 26. The three cannulas 12 on the side of the door are projected at right angles from the side of the door.

  As described above, each cannula 12 (see FIG. 6) that protrudes perpendicularly to the outer peripheral surface 4a (5a) of the door 4 (5) from the immersion state (see FIG. 4) is the door 4 or the same. 5 near the end of closing of the door 5 is the door holding mechanism 11 where the edge material 9, 10 provided on the door 4 or 5 abuts against the packing 7, 8 and is rebounded by the elasticity of the packing 7, 8. When holding, the door 4 or 5 is brought into pressure contact with the door receiver (stepped portions 2a and 5a of the door frame 2 and the child door 5) by the cooperative action of the corresponding kanuki 12 and the corresponding kanuki receiver 18. .

  Actually, the main door 4 and the child door 5 that are fully opened in a double-spreading manner are first temporarily closed by manually closing the child door 5 by the action of the door holding mechanism 11. When the door holding action of the door holding mechanism 11 is detected by the sensor S1, the drive source 19 of the child door 5 is activated and the two cannulas 12 provided on the upper and lower end surfaces of the door 5 are connected to the floor 1b and the door frame 2. The child door 5 is pressed against the door holder (door frame 2). The doors 4 and 5 can be formed to be closed and opened dynamically by a rotational drive source such as a motor built in or externally attached to the hinge 6. In the door 4 (5) using a driving force for opening and closing, the door holding mechanism 11 described above is unnecessary.

  After closing the child door 5 by operating the pressure contact device, the parent door 4 is manually closed, and the position near the end of closing is temporarily fixed by the door holding mechanism 11. At this position, the door 4 is detected by the sensor S1, and based on this detection signal, the drive source 19 is operated to cause all the cannulas 12 of the door 4 to protrude from the outer peripheral surface of the door 4 to operate the pressure contact device. 4 is sealed in a state in which the door holder (the door frame 2 and the stepped portions 2a and 5a on the side surfaces of the child door 5) is pressed.

In the present invention, the operation detection of the door holding mechanism 11 and the start of the drive source 19 as well as the advancement (protrusion) of all the cannulas 12 and the stop of the drive source 19 are controlled in conjunction.
Therefore, in the door holding mechanism 11, it is detected that the roller 11b has entered the receiving groove 11f of the latch receiver 11g by, for example, providing the sensor S1 with the stroke of the rod 11c, and is driven based on the detection signal input of the sensor S1. The start start signal of the source 19 is output.
On the other hand, the fact that all the cannulas 12 protruded is provided with a sensor (not shown in the figure) that outputs a signal at the stroke end on the output shaft 19b of the drive source 19 as an example. A drive stop signal of the drive source 19 is output.

  Of course, in the present invention, the drive source 19 can be started and stopped by manual operation. Further, since the driving source 19 uses the driving force of the electric motor 19a, the driving force cannot be obtained at the time of a power failure or the like. Therefore, in the present invention, the rotation of the manual rotation handle H can be transmitted to the lower end portion of the shaft 19b of the motor 19a to ensure that the pressure welding apparatus of the present invention can be manually operated at the time of a power failure or the like.

  The present invention is as described above. On the outer peripheral surface of the door, a cannula that rotates and advances from the inside of the door and retracts and sinks into the door is supported and provided inside the door. In the interior of the door, a drive source and a transmission system for causing the kanuki to move forward and backward are provided, while the door receiver for receiving the outer peripheral side provided with the kanuki is provided in front of the advance direction of the kanuki. A cannula receiver is provided, and when the cannula that is immersed in the door passes through the cannula receiver when the door is closed, the cannuki receiver is rotated and advanced so that the advance operation is received by the cannula receiver. Since the door is pushed out and pressed against the door support, the door is brought into close contact with the door support at the end of closing the door, particularly like a large and heavy airtight door. Even the stroke amount is large door can be pressed against the receiving door pulls the door.

The front view which shows an example of the both opening doors provided with this invention press-contacting apparatus and arrange | positioned with the double-spreading aspect. 1. The AA sectional view taken on the line AA in FIG. The front view which extracted and showed the structure of this invention pressure welding apparatus in the door of FIG. Sectional drawing of the principal part for demonstrating the effect | action of the said pressure welding apparatus at the time of the operation | movement start of this invention pressure welding apparatus. Sectional drawing of the principal part for demonstrating an effect | action of this invention pressure welding apparatus at the time of a kanuki advancing and starting to contact | abut to a kanuki receiving. Sectional drawing of the principal part for demonstrating an effect | action of the said pressure welding apparatus at the time of completion | finish of a pressure welding apparatus which this invention pressure welding apparatus was supported by a kanuki receiving and completed pressure welding. The sectional side view for demonstrating the outline | summary of the door holding mechanism for hold | maintaining the door which is closed while detecting the operation start timing of this invention pressure welding apparatus.

Explanation of symbols

1 Building frame 2 Door frame 3 Entrance 4,5 Door (parent door 4, child door 5)
6 Hinge 7, 8 Packing 9, 10 Edge material
11 Door holding mechanism
12 Cannuki
13 axes
14 Linkage
15 Actuating rod
16 Sliding guide
17 Push guide
18 Kanuki
19 Driving source
20 Output rod
21 Relay disk
22, 23 conversion link
24, 25 Transmission rod
26 Second conversion link

Claims (3)

In a metal door provided with a pressure contact mechanism provided at the doorway, a latch receiver for receiving and moving into and out of the door is provided in the door and the door receiver on the facing surface of the door and the door receiver. while the door holding mechanism, the co-when the yoke of immersive retracted inside the rotary advancing to the door from the inside of the door on the outer surface of the door, provided to support inside the door, the door inside of the Kannuki the forward and backward movement of the drive source for the a transmission system provided, and to receive door receive the outer peripheral side of the yoke of the door is provided, the advancing direction in front of the yoke coming advanced to become provided Kannuki receiving, when closing the door and held there put its near end closed doors are advanced latch of the door holding mechanism to the latch receiver, the door is closed to its position, the door Inside The yoke that retracted by rotating advanced to the door, characterized in that the by the advancing operation letting received on receiving the Kannuki, the closed that door extruded door receiving side so as to pressure-contact with the receiving the door Pressure welding equipment.   An actuator such as a motor or a fluid pressure cylinder whose output end performs a stroke (or advance / retreat) operation is used as a drive source, and the transmission system is connected by converting the stroke operation of the output end into an advance / retreat operation of the kanuki. 2. The door pressure welding apparatus according to claim 1, wherein a link mechanism is used.   The kanuki provided on the outer peripheral surface of the door is provided on at least the upper and lower surfaces on the outer peripheral surface of the door, the outer peripheral surface on the door receiving side, or the upper and lower both surfaces on the outer peripheral surface and the outer peripheral side surface on the door receiving side. Item 1 or 2 door pressure welding apparatus.

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