JP2018188934A - Door closing sequence adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door closing sequence adjusting device for a double door in which a regulation member does not protrude from an upper frame of a door opening, which omits work to return the regulation member to the storage position.SOLUTION: A cam member 2A is pulled by an actuator 5A that converts the closing rotation amount of a later closing door D2 into the pulling amount, and a driven cam part of a link mechanism 4A is swung by the cam member 2A. This causes a regulation member 3A, to which the link mechanism 4A is connected, to move to the regulation position. After the regulation member 3A is stored in the storage position by an early closing door D1, the cam member 2A is returned to the original standby position by returning means 6A. This can omit work to store the regulation member 3A into the storage position.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a door closing order adjusting device that adjusts the closing order of left and right doors in a double door system in which a pair of left and right doors are opened and closed.

  Two doors of a double door type such as a fire door are provided with eye plates on the front side of one door and on the back side of the other door at the butt portion of each door. For this reason, when closing two doors that are open on the front side, it is necessary to first close the front closing door having the face plate on the back side and to close the rear closing door having the face plate on the front side later. There is. If the order of closing the pair of doors is reversed, the eye plate becomes an obstacle and the double doors cannot be reliably closed. Therefore, conventionally, a device that restricts the left and right doors to close in a predetermined closing order has been proposed, and in such a device, when an erroneous operation of closing the rear closing door first is performed. In addition, an arm for preventing the operation protrudes from the upper frame of the door opening to restrict the first closing of the rear closing door. However, even in a state where both the rear closing door and the front closing are opened, there is a problem that the arm protrudes from the upper frame of the door opening and the aesthetic appearance of the inside of the building is impaired. In order to solve this problem, a door closing sequence adjusting device in which the arm does not protrude from the door opening upper frame has been proposed as described in Patent Document 1.

JP2004-316251

  However, in the door closing sequence adjusting device described in Patent Document 1, the engagement means 20 for holding the arm 15 that prevents the front closing operation of the rear closing door 90 at a position parallel to the door opening upper frame 11. Since the engaged state is released by opening and closing the rear closing door 90, there is a problem that the arm 15 and the engaging means 20 have to be reengaged by manual work or the like.

  The present invention relates to a door closing sequence adjusting device for a door opening type door closing sequence adjusting device that does not protrude from an upper frame of a door opening, and can automatically return the arm to a standby position. Is intended to provide.

  In order to solve the above-mentioned problems, the invention according to claim 1 is a closed door of a double door system comprising a front door and a rear door that rotate about an axis arranged along a vertical line. In the door closing order adjusting device for adjusting the order, a storage position in which a base end portion is pivotally supported in a mechanism housing portion provided between upper end portions of rotation shafts of the pair of doors and is housed in the upper beam. A restricting member that is pivotable between a closing restricting position that protrudes from the inside of the mechanism accommodating portion and contacts a front end portion on the rear closing door side, a swinging portion of the restricting member, and the mechanism accommodating A link mechanism in which both ends are connected to each other, a driven cam portion provided in the link mechanism, and a cam surface that contacts the driven cam portion, and moves between a standby position and an operating position. Possible cam member and the cam member to move along a predetermined trajectory And an actuator that moves the cam member to the operating position based on rotation of the rear closing door in the closing direction, and the cam surface is located between the standby position and the operating position. The driven cam portion is moved by moving the control member, and the restricting member is moved between the storage position and the closing restricting position via the link mechanism.

  In this case, the invention according to claim 2 holds the driven cam portion where the cam member moves to the closed position when the rear closing door is in the closed state, and the restricting member becomes the storage position. It further has a cam surface.

  Furthermore, the invention according to claim 3 is characterized in that the cam member has a driven cam portion insertion portion for moving without moving the driven cam portion when the cam member returns from the closed position to the standby position. To do.

  Furthermore, the invention according to claim 4 is characterized in that the restriction member has a biasing member that biases toward the restriction position, and the link mechanism rotates the restriction member in the storage position direction. A link member that rotates integrally with the member is provided.

  Further, the invention according to claim 5 is characterized in that each door opening sequence adjusting device has a groove for accommodating the driven cam portion formed by the opposing cam surface.

  And the invention which concerns on Claims 1-6 has a return means which returns the said cam member to a standby position, when a rear closing door is opened.

  According to the first aspect of the present invention, when the rear closing door is rotated in the closing direction, the actuator moves the cam member from the standby position to the operating position, and this movement causes the cam surface to follow the cam of the link mechanism. The regulating member is moved in a swinging manner from the storage position to the closing regulation position.

  According to the invention described in claim 2, when the rear closing door is finally closed, the cam member is further moved by the actuator to move from the operating position to the closing position. Thus, the cam surface of the cam member is configured to guide the driven cam portion so that the restricting member returns from the restricting position to the retracted position by movement from the operating position to the closed position. This eliminates the need to manually return the restricting member to the storage position.

  According to the third aspect of the present invention, when the cam member returns from the closed position to the standby position by opening the rear closing door, the driven cam section that relatively passes through the driven cam section insertion section does not move. Therefore, the cam member does not jump out to the restriction position by the opening operation of the door.

  According to the invention described in claim 4, the restricting member moves to the restricting position by the biasing member that biases the restricting member to the restricting position. When the cam member moves to the standby position, the link mechanism does not rotate integrally with the restriction member, so that only the link mechanism returns to the original position without the restriction member protruding outward.

  According to the fifth aspect of the present invention, since the driven member is accommodated in the groove formed by the cam surface provided opposite to the link member, the link member is reliably operated to swing. be able to.

  According to the sixth aspect of the present invention, the return means can reliably return the cam member to the operating position.

It is a fragmentary perspective view of the door frame of a double door system which has the door closing order adjustment apparatus of this invention. It is a top view which shows the structure of the door closing order adjustment apparatus of 1st Embodiment of this invention. It is a whole perspective view which shows the structure of the cam member of the door closing order adjustment apparatus of 1st Embodiment of this invention. It is a whole perspective view which shows the structure of the cam member and link mechanism of the door closing order adjustment apparatus of 1st Embodiment of this invention. It is a top view which shows the structure of the door closing order adjustment apparatus of 1st Embodiment of this invention. It is a top view which shows the structure of the door closing order adjustment apparatus of 2nd Embodiment of this invention. It is a whole perspective view which shows the structure of the cam member of the door closing order adjustment apparatus of 2nd Embodiment of this invention, a link mechanism, and a control member. It is a top view which shows the structure of the cam member of the door closing order adjustment apparatus of 2nd Embodiment of this invention. It is a cross-sectional perspective view which shows the structure of the cam member of the door closing order adjustment apparatus of 2nd Embodiment of this invention. It is a cross-sectional perspective view which shows the structure of the cam member of the door closing order adjustment apparatus of 2nd Embodiment of this invention. It is a whole perspective view which shows the structure of the link member which comprises the link mechanism of the door closing order adjustment apparatus of 2nd Embodiment of this invention. It is a fragmentary sectional perspective view which shows the structure of the link member which comprises the link mechanism of the door closing order adjustment apparatus of 2nd Embodiment of this invention. It is a whole perspective view which shows the structure of the actuator of the door closing order adjustment apparatus of 2nd Embodiment of this invention. It is a top view which contrasts the opening-and-closing state of a front closing door and a rear closing door, and the state of a control member and a link mechanism. It is a top view which contrasts the opening-and-closing state of a front closing door and a rear closing door, and the state of a control member and a link mechanism. It is a top view which contrasts the opening-and-closing state of a front closing door and a rear closing door, and the state of a control member and a link mechanism. It is a top view which contrasts the opening-and-closing state of a front closing door and a rear closing door, and the state of a control member and a link mechanism. It is a top view which contrasts the opening-and-closing state of a front closing door and a rear closing door, and the state of a control member and a link mechanism. It is a top view which contrasts the opening-and-closing state of a front closing door and a rear closing door, and the state of a control member and a link mechanism.

  Hereinafter, a door closing order adjusting device according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a partial perspective view of a door opening door frame having a door closing sequence adjusting device 1 according to the present invention. The pair of doors D1 and D2 are pivotally supported about a vertical rotation axis, and are supported at upper and lower rotation fulcrums d1 and d2 (the lower fulcrum is not shown).

  A pair of doors D1 and D2 (hereinafter, D1 is a first-closed door and D2 is also called a rear-closed door) are doors of a double door system that opens or closes a passage formed inside a gate-shaped frame G. In the frame G, a beam g3 is installed between the columns g1 and g2 at both ends, and the door closing sequence adjusting device 1 of the present invention is provided in the beam g3.

  Moreover, the rotating shafts of the front closing door D1 and the rear closing door D2 are arranged along the columns g1 and g2. An eye plate d11 is provided on the back side of the swing end side of the first closing door D1, and a face plate d21 is provided on the front side of the swing end side of the rear closing door D2. When the doors D1 and D2 are closed (closed), these eye plates d11 and d21 overlap the abutting portions of the doors D1 and D2, and cover the gaps of the abutting portions.

  In the beam g3, a first opening g31 is provided on the front side of the central part, and a second opening g32 is provided on the front side in the vicinity of the rotation fulcrum d2 of the rear closing door D2. From the first opening g31, the restricting member 3A protrudes so as to be able to appear and retract, and from the second opening g32, the detection part 51A protrudes so as to be able to appear and disappear.

  FIG. 2 is a plan view showing the configuration of the door closing sequence adjusting apparatus 1A according to the first embodiment of the present invention. The door closing sequence adjusting device 1A is accommodated in a mechanism accommodating portion g33 formed in the beam g3. The door closing order adjusting device 1A includes a cam member 2A, a regulating member (arm) 3A, a link mechanism 4A, an actuator 5A, and a return means 6A.

  2 A of cam members are accommodated in the guide groove g34 provided in the axial direction of the beam g3 in the mechanism accommodating part g33, and the cam member 2A is configured to reciprocate in the guide groove g34. FIG. 3 is an overall perspective view of the cam member 2A, and FIG. 4 is a perspective view showing the configuration of the link mechanism 4A. The cam member 2A is disposed so as to be able to reciprocate along the axis of the beam g3 (the direction parallel to the straight line connecting the axis of the door D1 and the door D2), and the cam surfaces 21aA and 21bA are erected in a substantially vertical direction. have. The cam surfaces 21aA and 21bA are provided along the moving direction of the cam member 2A and are arranged in parallel to face each other, and are provided with substantially the same length as the moving distance in which the cam member 2A reciprocates. Yes. The opposing cam surfaces 21aA and 21bA form a groove 21cA having an opening on the upper side, and a roller 414A provided on a link member 41A described later is accommodated in the groove 21cA.

  As shown in FIG. 3, the cam surfaces 21aA and 21bA are arranged on both end sides in parallel to the moving direction of the cam member 2A and in a straight line with a first straight region 211A and a second straight region 215A. A first inclined region 212A formed between the first linear region 211A and the second linear region 215A, and inclined at a predetermined angle from the first linear region 211A and the second linear region 215A to the front side; A second inclined region 214A and a third straight region 213A formed between the first and second inclined regions 212A and 214A are provided. As the cam member 2A reciprocates, the roller 414A, which is a driven cam portion, is guided by the cam surfaces 21aA and 21bA and moves in the front-rear direction (a direction orthogonal to the moving direction of the cam member 2A). ing. As the cam member 2A moves, the roller 414A relatively moves in the groove 21cA. The roller 414A moves while rolling in contact with either the cam surface 21aA or the cam surface 21bA. When the roller 414A is located within the first linear region 211A, the second linear region 215A, and the third linear region 213A, There is no movement in the front-rear direction, and it is moved in the front-rear direction when located in the first inclined area 212A and the second inclined area 214A. Each region is connected by a smooth curve, and the roller 414A can smoothly move between the regions.

  As shown in FIG. 4, the link mechanism 4A is disposed at a substantially central portion of the region in which the cam member 2A moves, and fixed fulcrums 411A and 431A provided on the beam g3 side in the mechanism housing portion g33. Is supported by. The link mechanism 4A includes link members 41A, 42A, and 43A. The link member 41A is rotatably connected to one end of the link member 42A via a pin 421A, and the pin is connected to the other end. A link member 43A is rotatably connected via 422A. The link member 41A is pivotally supported by a fixed fulcrum 411A fixed on the beam g3 side, and the link member 43A is pivotally supported by a fixed fulcrum 431A fixed on the beam g3 side. ing.

  The link member 41A has a roller mounting portion 412A protruding in the horizontal direction at the center, and a pin 413A serving as a roller shaft is provided upright on the cam member 2A side of the roller mounting portion 412A. The pin 413A As shown in FIG. 3, a roller 414A is externally provided. The link member 41A swings around the fixed fulcrum 411A by the movement of the roller 414A that is the driven cam portion.

  The link member 43A has a fixed fulcrum 431A at a substantially central portion, and is pivotally supported by the fixed fulcrum 431A. In addition, the base end portion of the regulating member 3A is supported on the fixed fulcrum 431A so as to be able to turn and overlap the link member 43A. The restricting member 3A and the link member 43A rotate around the same fixed fulcrum 431A.

  A link member 42A is connected to one end portion of the link member 43A, and an engaging projection 432A is formed to protrude toward the regulating member 3A side on the side of the other end portion.

  In the link mechanism 4A as described above, the link member 41A acts as a drive link member, the link member 43A acts as a driven link member, and the link member 42A acts as a connection link member that transmits movement from the drive link member to the driven link member. Have With such a configuration, the link member 43A swings based on the swing drive of the link member 41A.

  The engaging protrusion 432A of the link member 43A contacts the base end of the restricting member 3A. When the link member 43A rotates in one direction, it rotates together with the restricting member 3A and rotates in the other direction. In this case, it is configured to be rotated only by the link member 43A. When the restriction member 3A moves from the storage position F to the restriction position E, it rotates together with the link member 43. Conversely, when the restriction member 3A moves from the restriction position E to the storage position F, the restriction member 3A can move independently. It has become.

  In the configuration of this embodiment, when rotating to the right, only the link member 43A can rotate, and when rotating to the left, it rotates integrally with the regulating member 3A. In other words, in a state where the link member 43A is directed to the left, the restriction member 3A is also leftward (storage position F) and restricts the right rotation of the restriction member 3A. However, as shown in FIG. When 3A is located at the storage position F, the link member 43A can be rotated clockwise.

  The restricting member 3A is a plate-like vertically long member, and as described above, the base end is pivotally supported by the fixed fulcrum 431A. The restricting member 3A has a restricting position E (position shown in FIG. 5) where the tip projects toward the rear closing door D2, and a storage position F (shown in FIG. 2) housed in the mechanism housing portion g33. Oscillates with the current position). Through the first opening g31, the restricting member 3A protrudes outside the mechanism housing part g33. Although not shown, a winding spring is interposed between the fixed fulcrum 431A and the restricting member 3A, and the restricting member 3A is biased toward the restricting position. Further, a roller 31A is rotatably supported at the tip of the regulating member 3A, and the regulating member 3A contacts the rear closing door D2 via the roller 31A.

  The actuator 5A is arranged in the vicinity of the rotation fulcrum d2 of the rear closing door D2 in the mechanism housing part g33. In the vicinity of the rotation fulcrum d2, the actuator 5A extends in a swinging member 50A rotatably supported by a fixed shaft 53A fixed on the beam g3 side, and extends from the swinging member 50A toward the rear closing door D2. 51A and a connecting member 54A. A roller 511A that contacts the rear closing door D2 that rotates in the closing direction is rotatably provided at the tip of the detection unit 51A. A connecting portion 52A is provided on the opposite side of the detecting portion 51A across the fixed shaft 53A. The connecting member 54A is a member that connects the swing member 50A and the cam member 2A. In this embodiment, the connecting member 54A is configured by a cord that does not expand and contract. One end of the connecting member 54A is connected to one end of the cam member 2A, and the other end is connected to the connecting portion 52A of the swinging member 50A. With the configuration described above, when the rear closing door D2 rotates in the closing direction, the front end of the detection portion 51A contacts the rear closing door D2 to rotate the swinging member 50A, and the connection is made by the rotation of the swinging member 50A. The member 54A is configured to pull the cam member 2A in the direction of the actuator 5A. Thus, the actuator 5A converts the amount of rotation of the rear closing door D2 in the closing direction into the amount of movement of the cam member 2A in the linear direction.

  The return means 6A is composed of an elastic member 61A such as a spring. The return means 6A is disposed on the opposite side of the actuator 5A across the cam member 2A, one end of the elastic member 61A is fixed to the connecting portion 62A on the beam g3 side, and the other end is the other end of the cam member 2A. It is connected to the. The elastic member 61A constantly urges the cam member 2A, and the urging direction is the opposite direction of the actuator 5A across the cam member 2A.

  The operation of the apparatus according to the first embodiment of the present invention configured as described above will be described. As shown in FIG. 2, in a state in which the front closing door D1 and the rear closing door D2 are opened, the restricting member 3A is in the storage position stored in the mechanism storage portion g33. The cam member 2A is at a position (standby position) closest to the return means 6A, and the elastic member 61A is in the most contracted state. In this state, the roller 414A that is the driven cam portion is located at the end in the first linear region 211A.

  When the rear closing door D2 is rotated in the closing direction, as shown in FIG. 5, the detecting portion 51A of the actuator 5A contacts the rear closing door D2, and the swinging member 50A rotates. As a result, the connecting member 54A pulls the cam member 2A. As a result, the cam member 2A moves toward the actuator 5A as the rear closing door D2 rotates in the closing direction, but the regulating member 3A is moved until the relative position of the roller 414A reaches the first inclined region 212A. It does not move and is held in the storage position (the position F shown in FIG. 4) and does not protrude outside the beam g3. When the cam member 2A further moves and the roller 414A moves in the first inclined area 212A, the roller 414A is pushed to the front side by the cam surface 21bA, the link member 41A rotates, and the link member 43A rotates. . Since the restriction of the restricting member 3A to the storage position by the engaging protrusion 432A is released by the rotation of the link member 43A, the restricting member is urged by the urging force of the winding spring inserted between the fixed fulcrum 431A and the restricting member 3A. 3A swings together with the link member 43A toward the restricting position (position E shown in FIG. 4). When the cam member 2A further moves and the roller 414A moves to the third linear region 213A, the cam member 2A enters the operating position, and the restricting member 3A stops at the restricting position. Since the closing rotation of the rear closing door D2 is restricted by the restricting member 3A, the actuator 5A does not move and the cam member 2A does not move from the operating position.

  The position where the rotation of the rear closing door D2 is restricted is the position of the cam member 2A, the shape of the cam surface, and the length of the restriction member 3A so as not to prevent the first closing door D1 from reaching the closing position. Is set.

  Since the restricting member 3A is configured to protrude from the beam g3 immediately before the rear closing door D2 reaches the position at which the closing of the first closing door D1 is prevented, the restricting member 3A also has a disadvantage of impairing the beauty. It is reduced.

  Since the closing of the rear closing door D2 is restricted, the first closing door D1 is closed first. At this time, the swinging end of the front closing door D1 comes into contact with the protruding regulating member 3A and pushes the regulating member 3A into the storage position. At this time, the base end portion of the restricting member 3A rotates in a direction away from the engaging protrusion 432A of the link member 43A, and thus rotates independently from the link member 43A. Since the restriction by the restriction member 3A of the rear closing door D2 is released, when the rear closing door D2 is rotated to the closed position, the cam member 2A is further moved by the actuator 5A to reach the closed position. The roller 414A is guided by the second inclined area 214A of the cam surface 21aA and moves in the back direction. By the movement of the roller 414A, the link member 43A moves to a position overlapping the restricting member 3A at the storage position.

  When the rear closing door D2 is opened, the swinging member 50A becomes free, so that the restriction to the closed position with respect to the cam member 2A is released, and the return of the elastic member 61A causes the cam member 2A to move to the closed position. Return to the standby position via the action position. At this time, the roller 414A, which is the driven cam portion, moves while being guided by the cam surfaces 21aA and 21bB, and the link member 43A also swings accordingly. However, the restricting member 3A is held at the storage position by the front closing door D1. Therefore, the regulating member 3A does not protrude outside the beam g3. Further, when the first closing door D1 is opened thereafter, the cam member 2A is returned to the standby position, so that the restricting member 3A is restricted by the engaging protrusion 432A of the link member 43A and does not protrude outward from the storage position.

  In the configuration of the first embodiment described above, the connection between the detection portion 51A of the swing member 50A of the actuator 5A and the swing base end portion of the rear closing door D2 is inserted through the door-side long hole and the long hole. It is also possible to adopt a configuration in which the connection is made by a pin, the connecting member 54A is not a cable, but a rigid link member, and the return means 6A is omitted. The cam member 2A is configured to reciprocate according to the swing of the rear closing door D1.

  Next, the door closing order adjusting device 1B of the second embodiment will be described with reference to FIGS. FIG. 6 is a plan view showing the configuration of the door closing order adjusting device 1B. The door closing sequence adjusting device 1B is accommodated in a mechanism accommodating portion g33 formed in the beam g3, and includes a cam member 2B, a regulating member 3B, a link mechanism 4B, an actuator 5B, and a return means 6B. have.

  7 is a perspective view showing configurations of the cam member 2B, the regulating member 3B, and the link mechanism 4B, FIG. 8 is an overall plan view of the cam member 2B, and FIGS. 9 and 10 are cross-sectional perspective views of the cam member 2B. . A link mechanism 4B is arranged on the upper side of the cam member 2B, and a regulating member 3B is attached to the driven side link member 43B of the link mechanism 4B so as to be integrated.

  The cam member 2B is housed in a guide groove g34 provided in the axial direction of the beam g3 in the mechanism housing portion g33, and is configured to reciprocate in the guide groove g34.

  The cam member 2B is disposed so as to be able to reciprocate along the axis of the beam g3 (the direction parallel to the straight line connecting the axis of the door D1 and the door D2), as shown in FIGS. The cam surfaces 21aB and 21bB are provided upright in a substantially vertical direction. The cam surfaces 21aB and 21bB are arranged in parallel to face each other at a predetermined interval, and a loop-shaped groove 21cB composed of the inner cam surface 21bB and the outer cam surface 21aB is formed.

  The loop-shaped groove 21cB has a substantially trapezoidal shape. The first linear region 211B is formed in a straight line parallel to the moving direction of the cam member 2B, and one end of the first linear region 211B is front side. The first inclined region 212B formed at a predetermined angle and the second inclined region 214B formed at a predetermined angle from the other end of the first linear region 211B to the front side, and the first inclined region 212B. And a second linear region 213B provided linearly between the second inclined region 214B and the second inclined region 214B. The second straight region 213B is configured in parallel with the first straight region 211B. The first straight region 211B is set to have substantially the same length as the moving range of the cam member 2B. A roller 414B provided on a link member 41B described later is accommodated in the groove 21cB configured as described above.

  As the cam member 2B reciprocates, the roller 414B as the driven cam portion is guided by the cam surfaces 21aB and 21bB and moves in the front-rear direction (a direction orthogonal to the moving direction of the cam member 2B). ing. As the cam member 2B moves, the roller 414B relatively moves in the groove 21cB. The roller 414B moves while rolling in contact with either the cam surface 21aB or the cam surface 21bB. However, when the roller 414B is located in the first and second linear regions 211B and 213B, there is no movement in the front-rear direction. When located in the 1st, 2nd inclination area | region 212B, 214B, it is moved to the front-back direction. Each region is connected by a smooth curve, and the roller 414B can be smoothly moved between the regions.

  As shown in FIG. 9, a stepped portion 24B is formed between the first straight region 211B and the first inclined region 212B. The stepped portion 24B is configured to be lower on the second inclined region 214B side than the first straight region 211B. As shown in FIG. 10, a step portion 25B is formed between the first linear region 211B and the second inclined region 214B. The step portion 25B is configured to be lower on the first linear region 211B side than the second inclined region 214B.

  The link mechanism 4B is disposed substantially at the center of the region in which the cam member 2B moves, and as shown in FIG. 7, the fixed fulcrums 411B and 431B provided on the beam g3 side in the mechanism housing portion g33. It is supported by. The link mechanism 4B has link members 41B, 42B, and 43B. The link member 41B is rotatably connected to one end of the link member 42B via a pin 421B, and the pin is connected to the other end. The swing end portion of the link member 43B is rotatably connected via 422B (not shown in FIG. 7; see FIGS. 14 to 19). The link member 41B is pivotally supported by a fixed fulcrum 411B fixed on the beam g3 side, and the link member 43B is pivotally supported by a fixed fulcrum 431B fixed on the beam g3 side. ing.

  As shown in FIGS. 11 and 12, the link member 41B has a roller shaft 413B standing at the center, and the roller shaft 413B is externally provided with a roller 414B. A compression spring 415B is sheathed between the roller 414B and the link member 41B on the roller shaft 413B, and urges the roller 414B downward (toward the tip end of the roller shaft 413B). The roller 414B accommodated in the groove 21cB is constantly pressed against the bottom surface of the groove 21cB by the compression spring 415B as the urging member.

  The link member 41B swings around the fixed fulcrum 411B by the movement of the roller 414B that is a driven cam portion. The link member 43B has a fixed fulcrum 431B, and is rotatably supported by the fixed fulcrum 431B. In addition, the base end portion of the regulating member 3B is supported on the fixed fulcrum 431B so as to be able to turn and overlap the link member 43B. The restricting member 3B and the link member 43B rotate integrally around the same fixed fulcrum 431B.

  In the link mechanism 4B as described above, the link member 41B acts as a drive link member, the link member 43B acts as a driven link member, and the link member 42B acts as a connection link member that transmits movement from the drive link member to the driven link member. Have With such a configuration, the link member 43B swings based on the swing drive of the link member 41B.

  The restricting member 3B that rotates integrally with the link member 43B is a plate-like vertically long member, and as described above, the base end is pivotally supported by the fixed fulcrum 431B. The restricting member 3B has a restricting position (position shown in FIG. 6) with the tip protruding toward the rear closing door D2, and a storage position (position shown in FIG. 14) housed in the mechanism housing portion g33. ). The regulating member 3B protrudes outside the mechanism housing part g33 via the first opening g31. Although not shown, a winding spring is inserted between the fixed fulcrum 431B and the restricting member 3B, and the restricting member 3B is urged toward the restricting position. A roller 31B is rotatably supported at the tip of the regulating member 3B, and the regulating member 3B contacts the rear closing door D2 via the roller 31B.

  Next, the actuator 5B is arranged in the vicinity of the rotation fulcrum d2 of the rear closing door D2 in the mechanism housing part g33. The actuator 5B has an action of converting the amount of rotation of the rear closing door D2 in the closing direction into a linear movement amount of the cam member 2B.

  As shown in FIG. 13, the actuator 5B has a detection drive member 51B that detects the amount of rotation of the rear closing door D2, a driven pulley 52B, and a connecting line 53B. The detection drive member 51B is rotatable to the beam g3 side, a detection unit 511B extending toward the rotation base end of the rear closing door D2, a roller 512B provided at the tip of the detection unit 511B, and the beam g3. The detection unit 511B is urged by a winding spring (not shown) in a direction in which the detection unit 511B comes into contact with the swing base end portion of the rear closing door D2.

  A driven pulley 52B is rotatably supported near the detection drive member 51B. The driven pulley 52B has a pulley portion 521B around which the connecting rope 53B is wound, and a driven gear 522B disposed on the same rotational axis as the pulley portion 521B. The driven gear 522B and the pulley portion 521B rotate as a unit. Move.

  The driven gear 522B and the driving gear 513B are engaged with each other, and the number of teeth is [the number of teeth of the driven gear 522B <the number of teeth of the driving gear 513B]. Therefore, the rotation amount of the drive gear 513B is transmitted to the pulley unit 521B as a rotation amount several times larger.

  When the rear closing door D2 swings in the closing direction, the front end of the detection unit 511B comes into contact with the end of the rear closing door D2, and swings rightward together with the rear closing door D2. As a result, the drive gear 513B rotates and transmits the rotation to the pulley portion 521B via the driven gear 522B. By the rotation of the pulley portion 521B, the connecting cord 53B wound around the pulley portion 521B is wound up. The proximal end of the connecting cord 53B is wound around the pulley portion 521B, and the distal end is connected to the connecting portion 22B provided at one end of the cam member 2B.

  The return means 6B is composed of an elastic member 61B such as a spring. The return means 6B is arranged on the opposite side of the actuator 5B across the cam member 2B, one end of the elastic member 61B is fixed to the beam g3 side, and the other end is connected to the other end 23B of the cam member 2B. Yes. The elastic member 61B constantly urges the cam member 2B, and the urging direction is the opposite direction of the actuator 5B across the cam member 2B.

  14 to 19 are plan views showing the opening / closing states of the front closing door D1 and the rear closing door D2 in comparison with the states of the regulating member 3B and the link mechanism 4B. The operation of the apparatus according to the second embodiment of the present invention will be described below with reference to FIGS.

  As shown in FIG. 14, in a state where the front closing door D1 and the rear closing door D2 are opened, the regulating member 3B is in the storage position stored in the mechanism storage portion g33. The cam member 2B is at a position (standby position) closest to the return means 6B, and the elastic member 61B is in the most contracted state. In this state, the roller 414B that is the driven cam portion is located at the left end in the first linear region 211B.

  An urging force is applied to the regulating member 3B in a direction protruding from the storage position to the regulating position by a winding spring interposed between the fixed fulcrum 431B and the regulating member 3B. However, since the roller 414B, which is the driven cam portion, is restricted from moving in the front direction within the end portion of the first linear region 211B (FIG. 8) of the groove 21cB, the roller 414B is maintained at the storage position. Since the cam member 2B is urged to the right by the elastic member 61B, the roller 414B is relatively pressed against the end of the first linear region 211B (FIG. 8). The regulating member 3B is securely held at the storage position.

  As shown in FIG. 15, when the rear closing door D2 is rotated in the closing direction, the detection portion 511B of the actuator 5B comes into contact with the swing base end portion of the rear closing door D2, and the detection driving member 51B. Rotates. Thereby, the connecting line 53B is wound around the pulley portion 521B and pulls the cam member 2B. As a result, the cam member 2B moves toward the actuator 5B as the rear closing door D2 rotates in the closing direction. Since the roller 414B in the groove 21cB is biased toward the front direction (toward the first inclined region 212B), the roller 414B moves to the first inclined region 212B by the movement of the cam member 2B. When the roller 414B is completely moved to the first inclined region 212B, the roller 414B is urged toward the bottom surface of the groove 21cB, so that the step 24B causes the roller 414B to move in the reverse direction (backward direction). Be blocked. As a result, even if the restricting member 3B that has started to swing toward the restricting position is pushed back, it does not return to the original storage position. When the cam member 2B further moves, the roller 414B moves to the front side, and the restriction member 3B moves to the restriction position.

  As shown in FIG. 16, when the rear closing door D2 further swings, the cam member 2B moves to the operating position, and the roller 414B reaches the second linear region 213B. At the same time, the restricting member 3B reaches the restricting position. In a state where the front end of the regulating member 3B is in contact with the rear closing door D2, the roller 414B reaches the boundary between the second linear region 213B and the second inclined region 214B. When the front end of the regulating member 3B is in contact with the rear closing door D2, and the first closing door D1 swings to the closed position, as shown in FIG. 17, it comes into contact with the regulating member 3B. Push in toward the storage position. Accordingly, the roller 414B moves to the second inclined region 214B, and the rear closing door D2 whose restriction is released by the restriction member 3B also swings toward the closed position. By resuming the swing of the rear closing door D2, the cam member 2B further moves, and the roller 414B is pushed by the cam surface 21aB in the second inclined region 214B and moves in the back direction. With this movement, the regulating member 3B also moves backward. As shown in FIG. 18, when the rear closing door D2 is in the closed position and the doors D1 and D2 are completely closed, the cam member 2B is positioned closest to the actuator 5B (closed position). ) And the roller 414B is positioned at the leftmost end of the first straight region 211B. When the roller 414B is completely moved into the first linear region 211B, the step portion 25B restricts the roller 414B pressed toward the bottom surface from returning to the second inclined region 214B. Thereby, the regulating member 3B returned to the storage position is held at the storage position, and is prevented from protruding to the regulation position when the rear closing door D2 is opened.

As shown in FIG. 19, when the rear closing door D2 is swung from the closed state to the open state, the detection unit 511B rotates to the original position, and the connecting line 53B is fed out from the pulley unit 521B. At the same time, the cam member 2B is returned to the standby position by the restoring force of the elastic member 61B of the return means. By the movement of the cam member 2B, the roller 414B moves from the right end to the left end in the first linear region 211B. During this movement, the movement of the roller 414B to the front side is restricted by the step portion 25B and the cam surface 21bB in the first linear region 211B, and as a result, the protrusion of the restriction member 3B to the front side is also suppressed.
The door closing order adjusting devices 1A and 1B described above are configured to be accommodated in the beam g3, but may be located outside the beam g3. For example, you may attach to the beam g3 lower side.

  As described above, the door closing order adjusting device according to the present invention is suitable for use in a fire door or the like.

1 door closing order adjusting device 1A, 1B door closing order adjusting device D1 door (first closing door)
D2 door (rear closing door)
d1, d2 Rotation fulcrum d11 Eye plate d21 Eye plate E Restriction position F Storage position G Frame g1, g2 Post g3 Beam g31 First opening g32 Second opening g33 Mechanism housing part g34 Guide grooves 2A, 2B Cam members 3A, 3B Restriction member 4A, 4B Link mechanism 5A, 5B Actuator 6A, 6B Return means 21aA, 21aB, 21aB, 21bB Cam surface 21cA, 21cB Groove 22B Connection portion 24B, 25B Step portion 31A, 31B Roller 21aB, 21bB Cam surface 21cB Groove 211A, 211B First linear region 212A, 212B First inclined region 214A, 214B Second inclined region 215A, 213B Second linear region 213A Third linear region 41A, 42A, 43A, 41B, 42B, 43B Link members 411A, 431A, 411B, 431B Fixed fulcrum 412A Roller Attached part 413A, 413B Roller shaft 414A, 414B, 511A, 512B Roller 415B Compression spring 421A, 421B, 422A, 422B Pin 432A Engagement protrusion 50A Swing member 51A, 511B Detection part 51B Detection drive member 52A Connection part 52B Driven pulley 53A Fixed shaft 53B Connecting cable 54A Connecting member 513B Drive gear 521B Pulley portion 522B Driven gears 61A, 61B Elastic member

Claims (6)

A door closing sequence adjusting device that adjusts the closing order of the pair of doors in a double door type door comprising a front closing door and a rear closing door that respectively rotate about an axis line arranged along a vertical line. ,
A base end portion is pivotally supported in a mechanism accommodating portion provided between upper end portions of the pivot shafts of the pair of doors, a storage position stored in the upper beam, and a rear closing door that protrudes from the mechanism accommodating portion. A restricting member provided so as to be rotatable between a closing restricting position at which the tip end abuts on the side,
A link mechanism in which both end portions are connected between a swinging portion of the regulating member and the mechanism housing portion side;
A driven cam portion provided in the link mechanism;
A cam member having a cam surface that contacts the driven cam portion, and movable between a standby position and an operating position;
A guide unit for guiding the cam member to move along a predetermined locus;
An actuator for moving the cam member to an operating position based on rotation of the rear closing door in the closing direction;
The cam surface moves the driven cam portion when the cam member moves between the standby position and the action position, and moves the restricting member between the storage position and the closing restricting position via the link mechanism. A door closing sequence adjusting device characterized by that.   The cam member further includes a cam surface that moves to a closed position when the rear closing door is in a closed state and holds a driven cam portion at a position where the restricting member is in a storage position. Door closing order adjusting device.   3. The door closing sequence adjusting device according to claim 2, wherein the cam member has a driven cam portion insertion portion that moves without moving the driven cam portion when returning from the closed position to the standby position.   The restricting member includes a biasing member that biases toward a restricting position, and the link mechanism includes a link member that rotates integrally with the restricting member when the restricting member rotates in the storage position direction. Item 3. The door closing order adjusting device according to any one of Items 1 or 2.   The door closing sequence adjusting device according to any one of claims 1 to 4, wherein a groove that accommodates the driven cam portion is configured by the opposing cam surfaces.   The door closing order adjusting device according to any one of claims 1 to 5, further comprising return means for returning the cam member to a standby position when the rear closing door is opened.

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