JP3968655B2 - Opening and closing drive mechanism of double-smoke smoke-proof sliding door device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening / closing drive mechanism for a smoke-proof sliding door device that automatically closes a sliding door that is in an open state by urging it in a closing direction.
[0002]
[Prior art]
The self-closing sliding door device is provided with urging means for closing the sliding door from the open state, and automatically closes the sliding door from the open state. FIG. 3 of Patent Document 1 discloses a double sliding door device. One of the left and right sliding doors is connected to the upper side of the conductor (cord member) by a connecting bracket, and the other is connected to the lower side of the conductor by a connecting bracket. The conductor is wound between the driving pulley and the driven pulley of the sliding door closer. The sliding door closer is provided with a mainspring spring. When the left and right sliding doors are opened synchronously, the mainspring spring is wound and the left and right sliding doors are synchronously closed by the accumulated return torque.
[0003]
In FIG. 10 of Patent Document 2, a sliding door closer (self-closing device) and a driven pulley are provided for each of the left and right sliding doors, and the sliding door is connected to each conductor suspended from the respective sliding door closer and the driven pulley. Further, there is disclosed a double-sliding door device that automatically closes the left and right sliding doors separately by the closing force accumulated in the sliding machine closers by the opening operation of the sliding door.
[0004]
Patent Document 3 discloses a smoke shielding sliding door device previously filed by the applicant of the present application. This is because the left and right sliding doors are connected to a circular chain wound around a pair of left and right sprockets, and energy is stored in the mainspring of the sliding door self-closing device connected to one of the sprockets, and the release / engagement levers of the release device are Engage the locking pieces to open the left and right sliding doors, release the locking levers and the locking pieces in the event of a fire, and release the holding of the sliding doors by the release device. The sprocket is rotated by, and the left and right sliding doors are synchronized via the circular chain and are automatically closed from the open state.
[0005]
Patent Documents 4 and 5 disclose self-closing self-closing sliding door devices. In the smoke-insulating sliding door device of Patent Document 4, the sliding door connected to the wire protruding and retracting from the sliding door self-closing device (closing device) is locked in the release device in a fully open state. When the holding is released, the wire is pulled by the ambulatory restoring force of the self-closing device, and the sliding door is closed automatically. In the sliding door device of Patent Document 5, the other end of the wire having one end wound around the self-closing device is connected to the sliding door, and the wire is drawn out by opening the sliding door and the restoring force is stored in the ammunition machine of the self-closing device. When the sliding door is closed, the wire is wound by the restoring force, and the sliding door closes automatically.
[0006]
[Patent Document 1]
Japanese Patent No. 2933262 (FIG. 3)
[Patent Document 2]
Japanese Patent Publication No.8-3302 (Fig. 10)
[Patent Document 3]
Japanese Patent Application No. 2002-222233 [Patent Document 4]
Japanese Patent Publication No. 6-84708 [Patent Document 5]
Japanese Utility Model Publication No. 61-440 [0007]
[Problems to be solved by the invention]
In Patent Documents 1 and 3, the left and right sliding doors are connected in a fixed state to one cable member, and when one sliding door opens and closes, the other sliding door also opens and closes. In the smoke-proof sliding door device to which such a structure is applied, when evacuating in a state where the left and right sliding doors are closed in the event of a fire, if you try to open one sliding door, the other sliding door will also open. There was a problem that required great power. For this reason, it was not easy to open the sliding doors for powerless elderly people, women and children, and there was a risk of hindering quick evacuation. Furthermore, in Patent Document 3, the locking piece is locked by the engagement / disengagement lever to keep the sliding door open at the normal time, and the engagement / disengagement lever and the engagement piece are disengaged in the event of a fire and the sliding door is closed. When the evacuee opens the sliding door to evacuate, there is a possibility that the locking piece is again locked by the engagement / disengagement lever and the sliding door is opened. When the sliding door moves together with the sliding door when the sliding door is opened from the closed state during evacuation, the sliding device is held again in the release device when the sliding door is fully opened, and the smoke shielding function is There was a risk of damage.
[0008]
In Patent Document 2, a self-closing device is separately provided for each of the left and right sliding doors. Therefore, when this structure is applied to the smoke-proof sliding door device, a release device is required for each of the left and right sliding doors to be kept open at all times. It becomes.
[0009]
Patent documents 4 and 5 exemplify a sliding door, and do not disclose a problem presented by the present application. However, in the smoke-proof sliding door device to which the sliding door is opened by locking the terminal tool at the end of the wire of Patent Document 4 to the release device, the sliding door is closed from the opened state, and the sliding door is evacuated. Even if it opens, there is no fear that the terminal device will be locked again in the release device, but since the terminal device that opens the sliding door with the release device is provided at the end of the wire, the wire and terminal are opened and closed as the sliding door opens and closes. There is a risk that the tool may come loose or the wire may get tangled, which may hinder the reliable operation of the sliding door. Moreover, since the terminal device is provided in the sliding door via the wire, the terminal device falls when the restraint by the release device is released, and thus a structure for preventing the terminal device from falling is required.
In this application, the left and right sliding doors maintained open by the release device are opened with a small force without opening the other sliding door when the release device is released and closed in the event of a fire. When the sliding door is opened, the sliding door can be closed again without being held by the release device, and the double-smoke smoke-proof sliding door device can be opened and closed with a single release device. A drive mechanism is to be provided.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, in the present invention, the left and right sliding doors are urged in the closing direction in which they abut against each other, and are normally held in the open state by the release device and are automatically closed from the open position by releasing the release device. In the smoke-proof sliding door device, a guide rail is provided along the sliding door opening / closing direction, and a sliding door open state holding member detachable from the release device is provided on the guide rail so as to be guided and moved along the sliding door opening / closing direction. The cable member wound around the left and right pulleys corresponding to the left and right sliding doors is connected to the member, and this cable member is connected to the upper transition part for one sliding door and to the lower sliding door. Each sliding door is provided with a locking member corresponding to the sliding door corresponding to each side transition portion, and the left and right sliding doors abut against the locking member with the urging force in the closing direction in a state where the holding member is locked to the release device. Keep open To make it in, has a relatively movable in the opening direction corresponding sliding doors, of the self-closed closed state by the rotation of the cord member sliding door can be opened without rotating the cord member for the locking member characterized in that way the.
According to this, the sliding door is brought into contact with the locking member in the normal state where the holding member is locked to the release device by the locking members provided on the cable member connected to the holding member and corresponding to the left and right sliding doors, respectively. When the open state is maintained and the holding member is released by the release device, the right and left sliding doors close while rotating the cable member with the urging force in the closing direction, so that the passage and the building opening can be blocked, and smoke can be blocked. The open / close state is performed by one holding member and a release device, and no release device is required for each sliding door. When one of the sliding doors is opened while the left and right sliding doors are closed, the sliding door can move relative to the locking member in the opening direction, so that the sliding member can be slid to circulate. Absent. For this reason, since the other sliding door is not opened, an evacuation route can be secured with a small opening force that only pulls one sliding door, and it is easy to handle for a weak elderly person, woman or child. Even if the sliding door is opened for evacuation after closing, the holding member does not move with the opening movement of the sliding door, so the holding member is not locked to the release device, and the sliding door is automatically closed again by the urging force and smoke shielding Function is not impaired. In addition, since the sliding door open state holding member is provided so as to be guided and moved along the guide rail, the holding member moves without being unfolded and a reliable operation is obtained.
[0011]
The left and right sliding doors are biased in a closing direction by a winding spring member that generates a constant load. According to this, since a certain force is applied to the sliding door from the start of closing of the left and right sliding doors to contact, the left and right sliding doors contact with a constant load even when they collide with each other. Contact is ensured.
[0012]
Abutment members that can abut on the locking members corresponding to the left and right sliding doors are provided, through holes through which the cable members are inserted are provided in the abutment members, and the abutting members provided on the left and right sliding doors are each closed. It is characterized in that it is brought into contact with a corresponding locking member by urging to.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to FIGS. FIG. 1 shows a double-smoke and smoke-proof sliding door device 1. In a normal state, the left and right smoke-shielding doors are provided in door pockets 3 provided on the left and right sides of a side structure (wall) constituting the passage opening 2. Sliding doors 4 and 5 are accommodated respectively. Reference numeral 6 denotes a sliding door frame that is framed by a structure constituting the passage opening 2, and the sliding door frame 6 includes an upper frame 7 and left and right vertical frames 8 and 8. As shown in FIG. 2, the upper frame 7 includes an upper frame 9 and a lower frame 10, and the upper frame 9 and the lower frame 10 close the closed center (center of the upper frame) L from the left and right vertical frames 8 and 8. An upper airtight material holding groove 11 facing upward and having an upward slope toward the upper side is formed with respect to the closing center L, and the upper airtight material 12 has an upper surface on the left and right upper airtight material holding grooves 11. It is fitted so as to be inclined at the same angle as the inclination of the airtight material holding groove 11. The left and right vertical frames 8, 8 are composed of an inner frame 13 and an outer frame 14, and the outer frame 14 is bent in a bowl shape facing the sliding door opening direction in the vertical direction as shown in FIG. 3. A vertical closing member 15 is formed. The upper airtight member 12 extends to above the longitudinal blocking member 15.
[0014]
The smoke-shielding sliding doors 4 and 5 have a door-end airtight material 29 attached to the tip of the tip (end of the sliding door closing side), and when the sliding door tip is closed, the left and right smoke-shielding sliding doors 4 and 5 The door-end airtight materials 29 and 29 come into close contact with each other. A lower airtight member 30 is provided at the lower end portion of the smoke-shielding sliding doors 4 and 5 so as to close the space between the floor F and the guide is guided by a lower guide roller 31 provided on the floor F in front of the vertical frame 8. A groove 32 is provided. As shown in FIG. 3, vertical airtight material holding grooves 33, 33 are formed in the door bottom portions of the smoke-shielding sliding doors 4, 5 so as to extend in the vertical direction. 33, vertical airtight members 33a and 33a are mounted. The vertical airtight material 33a is in close contact with the vertical closing member 15 when the sliding door is closed, and the upper end of the vertical airtight material 33a extends slightly above the vertical airtight material holding groove 33 so as to be in close contact with the upper airtight material 12. ing. In addition, 53 is a door pocket frame. As shown in FIGS. 2 and 4, an upper closing member 34 that protrudes in an eaves shape so as to cover the upper airtight material 12 of the upper frame 7 over the entire length of the sliding door, as shown in FIGS. 2 and 4. , 34 are integrally fixed. The upper closing member 34 is inclined at the same inclination as the inclination of the upper airtight member 12 from the door butt to the door tip, and is in close contact with the upper airtight member 12 when the sliding door is closed.
[0015]
A drive unit accommodation case 17 is formed above the sliding door frame 6, and a smoke shielding sliding door opening / closing drive mechanism 54 is arranged in the drive unit accommodation case 17. The opening / closing drive mechanism 54 includes a sliding door guide rail 19, a suspension device 20, a winding wire 27, a locking member 40, a holding member 41, a release device 44, and a winding spring member 49, which will be described later. The opening / closing drive mechanism 54 will be described. A horizontal frame 18 is disposed in the drive unit accommodation case 17. As shown in FIGS. 5 and 6, a sliding door guide rail 19 is fixed to the front surface of the horizontal frame 18 along the sliding door opening / closing direction. A pair of left and right smoke-proof sliding doors 4 and 5 are suspended and guided on the sliding door guide rail 19 via suspension devices 20 provided at two locations for each smoke-proof sliding door. The suspension device 20 includes a support member 21 having a lower end connected to an upper end of a smoke-proof sliding door, and the support member 21 is rotatably provided with a roller 22 that rolls on the sliding door guide rail 19 as shown in FIG. And an anti-lifting roller 23 provided. Further, as shown in FIG. 7, the abutting members 24 and 25 are fixed to the hanging device 20 on the door-end side of each smoke shielding sliding door 4 and 5, respectively. In the contact piece 26 protruding toward the frame 18 (in the sliding door finding direction), the right smoke shielding sliding door 5 portion is shown in FIG. 8, but a through hole 28 through which the circling wire 27 is inserted is formed. .
[0016]
As shown in FIG. 5, pulleys 37, 37 are rotatably provided on the left and right sides of the horizontal frame 18 via brackets 35, 36. A winding wire 27 serving as a rope member is wound around the left and right pulleys 37 and 37. The upper wire portion (upper transition portion) 38 of the circling wire 27 is inserted through the through hole 28 of the contact piece 26 of one (left side) smoke-proof sliding door 4, and the lower wire portion (lower transition portion) 39 is The other (right side) smoke shielding sliding door 5 is inserted through the through hole 28 of the contact piece 26, and the upper wire portion 38 is in contact with the lower side wire portion 39 on the right side with respect to the contact member 24. A locking member (rope clamp) 40 is integrally attached to the left side of the member 25 as shown in FIG. The left and right locking members 40 are in contact with the contact pieces 26 and 26 of the corresponding left and right smoke-proof sliding doors 4 and 5 to restrict the movement of the smoke-proof sliding doors 4 and 5 in the closing direction, and the locking members The relative movement in the opening direction of the smoke shielding sliding doors 4 and 5 with respect to 40 and 40 is enabled.
[0017]
Further, both ends of the winding wire 27 in the upper wire portion 38 are connected to the lower portion of the sliding door open state holding member 41 as shown in FIG. 9. The holding member 41 includes a holding hook 42, and the holding hook 42 is engaged with and disengaged from a latch 55 of a release device 44 attached to the center of the horizontal frame 18 via a bracket 43 (FIG. 10). In the state where the holding hook 42 is locked to the latch 55, as shown in FIGS. 5 and 12, the left and right smoke-proof sliding doors 4, 5 are fully opened by the contact between the locking member 40 and the contact piece 26. When the solenoid 56 of the release device 44 is operated by a signal from a fire (smoke) detection device (not shown), the holding hook 42 is unlocked by the latch 55. Since the release device 44 and the holding member 41 are engaged and disengaged at the center of the horizontal frame 18 (closed center L), the lid 17a of the drive unit housing case 17 can be provided compared to the release device provided in the door pocket. Installation and inspection can be performed easily by opening. A guide element 45 is provided on the upper portion of the holding member 41, and the guide element 45 is guided so as to be slidable along the holding member guide rail 46. The holding member guide rail 46 is constructed by laying a pipe between the holding member guide rail mounting pieces 47, 47 provided on the upper portions of the brackets 36, 43 in parallel with the winding wire 27.
[0018]
The closing means mounting piece 48 provided at the lower portion of the bracket 43 is provided with a well-known winding spring member as the left and right sliding door closing means 49, 49. The winding spring member 49 is a constant load spring, and one end of the belt-like leaf spring 50 is connected to and wound around a winding member 51 that is pivotally supported so that the leaf spring 50 is wound around the winding member 51. It is configured such that the winding force always acts so as to stick. As shown in FIG. 11, the winding members 51 of the left and right winding spring members 49 are rotatably attached to the closing means mounting piece 48, and the other ends of the leaf springs 50 are respectively connected to the left and right smoke shields. It connects with the supporting member 21 of the sliding doors 4 and 5 via the connection member 52, and the smoke shielding sliding doors 4 and 5 are always urged | biased in the closing direction by using winding force as closing force.
[0019]
In the smoke-proof sliding door device 1 configured in this way, as shown in FIG. 12, the passage opening 2 is normally opened, so that the left and right smoke-proof sliding doors 4, 5 are left and right by the opening / closing drive mechanism 54. 3 and 3 are held in the stored state. At this time, the left and right winding spring members 49 and 49 are drawn out from the winding member 51 in the opening direction, and urge the smoke shielding sliding doors 4 and 5 in the closing direction. Further, when the holding member 41 is locked to the release device 44, the left locking member 40 is positioned at the left end of the winding wire 27 and the right locking member 40 is positioned at the right end position of the winding wire 27. The contact pieces 26 of the left and right smoke-proof sliding doors 4 and 5 corresponding to the left and right engaging members 40 are brought into contact with the urging force of the wind-up spring member 49 to restrict the movement in the closing direction. The left and right smoke-proof sliding doors 4 and 5 are held in an open state by the locking of the holding member 41 and the release device 44.
[0020]
In the event of a fire, as shown in FIG. 13, the solenoid 56 is energized to release the holding hook 42 by the release device 44, thereby closing the left and right shields at a substantially constant speed by the closing force of the retractable spring member 49. The smoke sliding doors 4 and 5 move in synchronization with the closing direction while pushing the corresponding locking member 40, and the upper airtight material 12 a of the smoke shielding sliding doors 4 and 5 and the upper closing member are moved to the upper airtight material 12 of the sliding door frame 6. 34 is the vertical closing member 15 of the sliding door frame 6 and the vertical air-tight material 33a of the smoke-proof sliding doors 4 and 5 are below the door-end air-tight materials 29 and 29 of the left and right smoke-proof sliding doors 4 and 5, and the smoke-proof sliding doors 4 and 5 The airtight material 30 and the floor surface F are in close contact with each other, and the passage opening 2 is sealed. At this time, the left and right locking members 40, 40 move in the closing direction to rotate the winding wire 27 in the clockwise direction, and the holding member 41 is greatly shaken by being guided along the holding member guide rail 46. Instead, it moves to the right in FIG. 13 and is located at the right end of the winding wire 27.
[0021]
For example, when one (left side) smoke-proof sliding door 4 is opened in order to secure an evacuation route in the closed state of the smoke-proof sliding doors 4, 5, the winding wire 27 is inserted into the contact piece 26, and Since the stop member 40 is in contact, as shown in FIG. 14, the left smoke-proof sliding door 4 does not rotate the circling wire 27 and keeps the stop member 40 in its place, so that the stop member 40 Move relative to the opening direction. Therefore, since the other smoke-proof sliding door 5 is not opened together by the opening / closing drive mechanism 54, one sliding door 4 can be opened with a small opening force, and even an inexperienced elderly person can secure an evacuation route. Can be done easily and evacuate quickly. Further, even if the smoke shielding sliding door 4 is fully opened when the evacuation route is secured from this closed state, the rotating wire 27 does not rotate, so that the holding member 41 connected to the rotating wire 27 does not move and the right end of the rotating wire 27 does not move. The holding member 41 is not locked to the release device 44 again. Therefore, even if the smoke shielding sliding door 4 is opened, the smoke shielding sliding door 4 is automatically closed again by the closing force of the retractable spring member 49, so that the smoke shielding function is maintained.
[0022]
Incidentally, as in Patent Document 3, the sliding door guide rail 62 of the right smoke-proof sliding door 5 is slightly inclined in the prospective direction toward the closing center L with respect to the sliding door guide rail 61 of the left smoke-proof sliding door 4 ( The present application is also applied to FIG. In this case, the sliding door open state holding member may be moved in the sliding door opening / closing direction orthogonal to the closing center L, or may be moved in the sliding door opening / closing direction along the inclined right sliding door guide rail 62. May be.
[0023]
【The invention's effect】
As described above, in the present invention, the sliding door open state holding member detachably engageable with the release device is movably provided, and the holding member is connected to the rope member wound around the left and right pulleys so that the vertical movement of the rope member is performed. The part is provided with a locking member corresponding to each of the left and right sliding doors, and in a state where the holding member is locked with the release device, the sliding member abuts on the locking member with an urging force in the closing direction, and is held in the open state. Since the sliding door corresponding to the locking member is relatively movable in the opening direction, the sliding door can be held in the open state by one holding member and the release device. Further, when one of the sliding doors is opened in the closed state of the sliding door, the sliding door can move relative to the locking member, so that the cord member is not circulated and the other sliding door is not opened. For this reason, the sliding door can be opened with a small opening force to open one of the sliding doors, so that it is easy to handle, and an evacuation route can be easily secured even for a weak elderly person. Further, since the cable member does not go around, the holding member does not move and is locked again with the release device, and the opened sliding door is closed again and the smoke shielding function is not impaired. In addition, a guide rail is provided along the sliding door opening and closing direction, and a sliding door open state holding member that can be engaged with and detached from the release device is provided on the guide rail so as to be guided and moved along the sliding door opening and closing direction. It moves without any problem and reliable operation is obtained.
[Brief description of the drawings]
FIG. 1 is an overall front view of a smoke-proof sliding door device.
FIG. 2 is a cross-sectional view of an upper frame showing attachment of an upper airtight material.
FIG. 3 is a longitudinal sectional view showing contact between a longitudinal airtight member and a longitudinal closing member.
FIG. 4 is a side view of the right smoke-proof sliding door.
FIG. 5 is a front view of the smoke shielding sliding door device in an open state.
6 is a cross-sectional view taken along line VI-VI in FIG. 5 excluding the smoke-proof sliding door.
FIG. 7 is a diagram illustrating contact between a contact member and a locking member of the suspension device.
8 is a VIII view of FIG.
FIG. 9 is a front view showing locking of the release device and the holding member.
FIG. 10 is a plan view with a partial cross section showing locking between the release device and the holding member;
FIG. 11 is a view showing attachment of a release device, a holding member guide rail, and a winding spring member to a horizontal frame.
FIG. 12 is a diagram illustrating an open state of the smoke shielding sliding door device.
FIG. 13 is a diagram illustrating a closed state of the smoke shielding sliding door device.
FIG. 14 is a diagram illustrating a state in which one smoke shielding sliding door of the smoke shielding sliding door device is opened.
FIG. 15 is a plan view for explaining the inclination of the left and right sliding door guide rails.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Double-smoke smoke-proof sliding door apparatus 4,5 Smoke-proof sliding door 27 Cable member 37 Pulley 38 Upper transition part 39 Lower transition part 40 Locking member 41 Sliding door open state holding member 44 Release apparatus 46 Holding member guide rail (guide rail)
49 Rewind-type spring member 54 Opening and closing drive mechanism

Claims (3)

In a smoke-proof sliding door device that is biased in the closing direction in which the left and right sliding doors abut each other and is normally held open by the release device and is automatically closed from the open position when the release device is released, the sliding door opens and closes A guide rail is provided along the direction, and a sliding door open state holding member that can be engaged with and disengaged from the release device is provided on the guide rail so as to be guided and moved along the sliding door opening / closing direction. The cable member wound around the left and right pulleys is connected to the sliding member, and the sliding member has a sliding door corresponding to the upper transition portion for one sliding door and the lower transition portion for the other sliding door. A locking member is provided so that the left and right sliding doors are in contact with the locking member with an urging force in the closing direction while the holding member is locked to the release device, and each sliding door is held in an open state. For locking member Corresponding has a sliding door movable relative to the opening direction, barrier both pull, characterized in that the sliding door of the self-closed closed state by the rotation of the cord member which make it possible to open without rotating the cord member Opening and closing drive mechanism of smoke sliding door device.   The open / close drive mechanism for a double-smoke smoke-proof sliding door device according to claim 1, wherein the left and right sliding doors are urged in a closing direction by a winding spring member that generates a constant load. Abutment members that can abut on the locking members corresponding to the left and right sliding doors are provided, through holes through which the cable members are inserted are provided in the abutment members, and the abutting members provided on the left and right sliding doors are each closed. 3. An opening / closing drive mechanism for a double-smoke and smoke-proof sliding door device according to claim 1, wherein the opening / closing drive mechanism is configured to abut against a corresponding locking member by urging to.

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