JP6846282B2 - Door closing order adjustment device - Google Patents

Description

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

Two double doors, such as fire doors, are provided with perforations on the front side of one door and on the back side of the other door at the abutting portion of each door. Therefore, when closing the two doors that are open on the front side, it is necessary to close the front closing door that has the eye plate on the back side first and the rear closing door that has the eye plate on the front side later. There is. If the closing order of the pair of doors is reversed, the panel will be an obstacle and the double doors cannot be closed reliably. Therefore, conventionally, a device that regulates the closing of the left and right doors in a predetermined closing order has been proposed, and in that device, when the rear closing door is closed first, an erroneous operation is performed. In addition, an arm for blocking the operation protrudes from the upper frame of the door opening to regulate the front closing of the rear closing door. However, even when both the rear-closed door and the front-closed door are open, there is a problem that the arm protrudes from the upper frame of the door opening and spoils the aesthetic appearance of the inside of the building. In order to solve this problem, a door closing order adjusting device in which the arm does not protrude from the upper frame of the door opening is also proposed as described in Patent Document 1.

JP-A-2004-316251

However, in the door closing order adjusting device described in Patent Document 1, the engaging 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 due to the above is released by opening and closing the rear closing door 90, there is a problem that the arm 15 and the engaging means 20 must be re-engaged by manual work or the like.

The present invention is a door closing order adjusting device for a double door type door in which the arm does not protrude from the upper frame of the door opening, and the door closing order adjusting device can automatically return the arm to the standby position. Is intended to be provided.

In order to solve the above problems, the invention according to claim 1 is to close a door of a Kannon opening type including a front-closing door and a rear-closing door that rotate around an axis arranged along a vertical line, respectively. In the door closing order adjusting device for adjusting the order, the base end portion is pivotally supported in the mechanism accommodating portion provided between the upper end portions of the rotating shafts of the pair of doors, and the accommodating position is accommodated in the upper beam. And the restricting member rotatably provided between the closing restricting position protruding from the mechanism accommodating portion and the tip end contacting the rear closing door side, the swinging portion of the restricting member, and the mechanism accommodating. It has 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 in contact with the driven cam portion, and moves from a standby position to an action position. A possible cam member, a guide portion that guides the cam member to move along a predetermined trajectory, and an actuator that moves the cam member to an action position based on the rotation of the rear closing door in the closing direction. The cam surface moves the driven cam portion by moving the cam member between the standby position and the action position, and the restricting member is placed in the storage position and the closing restricting position via the link mechanism. It is characterized by moving between.

At that time, in the invention according to claim 2, the cam member moves to the closed position when the rear closing door is closed, and holds the driven cam portion at a position where the restricting member is in the storage position. It is characterized by further having a cam surface to be used.

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

Further, in the invention according to claim 4, when the restricting member has an urging member for urging toward the restricting position and the link mechanism rotates the restricting member in the storage position direction, the regulation is performed. It is characterized by having a link member that rotates integrally with the member.

Further, the invention according to claim 5 is characterized in that, in each of the door opening order adjusting devices, a groove for accommodating the driven cam portion is formed by the facing cam surfaces.

The invention according to claims 1 to 6 is characterized by having a returning means for returning the cam member to the standby position when the 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 working position, and this movement causes the cam surface to be a driven cam of the link mechanism. By moving the part, the restricting member is reliably swung from the storage position to the closing regulation position.

According to the second aspect of the present invention, when the rear closing door is finally closed, the cam member is further moved by the actuator to move from the action position to the closed position. As a result, the cam surface of the cam member is configured to guide the driven cam portion so that the regulating member returns from the regulating position to the storage position by moving from the working position to the closed position. This eliminates the need for manually returning the regulating 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 due to the opening of the rear closing door, the driven cam portion that relatively passes through the driven cam portion insertion portion does not move. Therefore, the cam member does not pop out to the regulated position due to the opening operation of the door.

According to the invention of claim 4, the regulating member is moved to the regulated position by the urging member that urges the regulating member to the regulated position. When the cam member moves to the standby position, the link mechanism does not rotate integrally with the regulating member, so that only the link mechanism returns to the original position without the regulating member protruding outward.

According to the fifth aspect of the present invention, since the link member accommodates the driven cam portion in the groove formed by the cam surfaces provided so as to face each other, the regulating member is reliably swung. be able to.

According to the invention of claim 6, the return means can surely return the cam member to the action position.

It is a partial perspective view of the door frame of the double door type which has the door closing order adjustment device 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 an overall perspective view which shows the structure of the cam member of the door closing order adjusting apparatus of 1st Embodiment of this invention. It is an overall perspective view which shows the structure of the cam member and the link mechanism of the door closing order adjustment device 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 an overall perspective view which shows the structure of the cam member, the link mechanism and the regulation member of the door closing order adjustment device of 2nd Embodiment of this invention. It is a top view which shows the structure of the cam member of the door closing order adjusting apparatus of 2nd Embodiment of this invention. It is sectional drawing which shows the structure of the cam member of the door closing order adjustment apparatus of 2nd Embodiment of this invention. It is sectional drawing which shows the structure of the cam member of the door closing order adjusting apparatus of 2nd Embodiment of this invention. It is an overall perspective view which shows the structure of the link member which constitutes the link mechanism of the door closing order adjustment device of 2nd Embodiment of this invention. It is a partial cross-sectional perspective view which shows the structure of the link member which constitutes the link mechanism of the door closing order adjustment device of 2nd Embodiment of this invention. It is an overall 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 shows the open / closed state of the front closing door and the rear closing door, and the state of a regulation member and a link mechanism in comparison. It is a top view which shows the open / closed state of the front closing door and the rear closing door, and the state of a regulation member and a link mechanism in comparison. It is a top view which shows the open / closed state of the front closing door and the rear closing door, and the state of a regulation member and a link mechanism in comparison. It is a top view which shows the open / closed state of the front closing door and the rear closing door, and the state of a regulation member and a link mechanism in comparison. It is a top view which shows the open / closed state of the front closing door and the rear closing door, and the state of a regulation member and a link mechanism in comparison. It is a top view which shows the open / closed state of the front closing door and the rear closing door, and the state of a regulation member and a link mechanism in comparison.

Hereinafter, the 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 double door frame having the door closing order adjusting device 1 of the present invention. The pair of doors D1 and D2 are oscillatingly supported around a rotation axis in the vertical direction, and are supported by rotation fulcrums d1 and d2 at the upper end and the lower end (the fulcrum at the lower end is not shown).

The pair of doors D1 and D2 (hereinafter, D1 is also referred to as a front closing door and D2 is also referred to as a rear closing door) are double doors that open or close the passage formed inside the gate-shaped frame G. In the frame G, a beam g3 is erected between the columns g1 and g2 at both ends, and the door closing order adjusting device 1 of the present invention is provided in the beam g3.

Further, the rotation axes of the front closing door D1 and the rear closing door D2 are arranged along the respective columns g1 and g2. The swing end side of the front closing door D1 is provided with a panel d11 on the back surface side, and the swing end side of the rear closing door D2 is provided with a panel d21 on the front side. When both doors D1 and D2 are closed (closed), these panel plates d11 and d21 overlap the butted portions of the doors D1 and D2 and cover the gaps between the butted portions.

In the beam g3, the first opening g31 is provided on the front side of the central portion, and the second opening g32 is provided on the front side in the vicinity of the rotation fulcrum d2 of the rear closing door D2. The regulating member 3A protrudes freely from the first opening g31, and the detection unit 51A protrudes freely from the second opening g32.

FIG. 2 is a plan view showing the configuration of the door closing order adjusting device 1A according to the first embodiment of the present invention. The door closing order adjusting device 1A is housed in the 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 returning means 6A.

The cam member 2A is housed in a guide groove g34 provided in the axial direction of the beam g3 in the mechanism accommodating portion g33, and 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 arranged so as to be reciprocally movable along the axis of the beam g3 (the direction parallel to the straight line connecting the axes of the door D1 and the door D2), and the cam surfaces 21aA and 21bA erected substantially in the 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 facing each other, and are provided with substantially the same length as the moving distance of the cam member 2A for reciprocating movement. There is. A groove 21cA having an opening on the upper side is formed by the opposing cam surfaces 21aA and 21bA, and the roller 414A provided in the link member 41A described later is accommodated in the groove 21cA.

As shown in FIG. 3, the cam surfaces 21aA and 21bA have a first straight line region 211A and a second straight line region 215A formed on both ends in a straight line parallel to the moving direction of the cam member 2A, and both ends. The first inclined region 212A, which is provided between the first straight region region 211A and the second straight region region 215A and is formed so as to be inclined at a predetermined angle from the first straight region region 211A and the second straight region region 215A to the front side. It includes a second inclined region 214A and a third straight line region 213A formed between the first inclined regions 212A and 214A. When 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 (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. Then, the roller 414A moves while being in contact with either the cam surface 21aA or the cam surface 21bA, but is located within the first straight line region 211A, the second straight line region 215A, and the third straight line region 213A. There is no movement in the front-rear direction, and when it is located in the first inclined region 212A and the second inclined region 214A, it is moved in the front-rear direction. The regions are connected by a smooth curve, and the roller 414A is configured to move smoothly between the regions.

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

The link member 41A has a roller mounting portion 412A projecting horizontally in the central portion, and a pin 413A serving as a roller shaft is erected on the cam member 2A side of the roller mounting portion 412A. The roller 414A is exteriorized as shown in FIG. The link member 41A swings around the fixed fulcrum 411A due to the movement of the roller 414A, which is the driven cam portion.

The link member 43A has a fixed fulcrum 431A at a substantially central portion, and is rotatably supported by the fixed fulcrum 431A. Further, at the fixed fulcrum 431A, the base end portion of the regulating member 3A is rotatably supported on the link member 43A. The regulating member 3A and the link member 43A rotate about the same fixed fulcrum 431A.

A link member 42A is connected to one end of the link member 43A, and an engaging protrusion 432A is formed so as to project toward the regulation member 3A on the side side of the other end.

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 connecting link member that transmits movement from the drive link member to the driven link member. Has. With such a configuration, the link member 43A swings based on the swing drive of the link member 41A.

The engaging projection 432A of the link member 43A abuts on the base end portion of the regulating member 3A, and when the link member 43A rotates in one direction, it rotates integrally with the regulating member 3A and rotates in the other direction. In this case, the structure is such that it can be rotated only by the link member 43A. When the regulation member 3A moves from the storage position F to the regulation position E, it rotates together with the link member 43, and conversely, when the regulation member 3A moves from the regulation position E to the storage position F, the regulation member 3A can move independently. It has become.

In the configuration of this embodiment, when rotating clockwise, it can be rotated only by the link member 43A, and when rotating counterclockwise, it rotates integrally with the regulating member 3A. In other words, when the link member 43A faces to the left, the regulating member 3A also faces to the left (storage position F) and restricts the clockwise rotation of the regulating member 3A. However, as shown in FIG. 4, the regulating member 3A also faces to the left. When the 3A is located at the storage position F, the link member 43A can rotate clockwise.

The regulating member 3A is a plate-shaped vertically long member, and as described above, the base end portion is rotatably supported by the fixed fulcrum 431A. The regulating member 3A has a regulating position E (position shown in FIG. 5) whose tip protrudes toward the rear closing door D2 and a storage position F (shown in FIG. 2) housed in the mechanism accommodating portion g33. It swings between the position and the position. The regulating member 3A projects to the outside of the mechanism accommodating portion g33 through the first opening g31. Although not shown, a winding spring is inserted between the fixed fulcrum 431A and the regulation member 3A, and the regulation member 3A is urged toward the regulation position. A roller 31A is rotatably supported at the tip of the regulating member 3A, and the regulating member 3A comes into contact with the rear closing door D2 via the roller 31A.

The actuator 5A is arranged in the mechanism accommodating portion g33 in the vicinity of the rotation fulcrum d2 of the rear closing door D2. The actuator 5A extends from the swing member 50A toward the rear closing door D2 with the swing member 50A rotatably supported by the fixed shaft 53A fixed to the beam g3 side in the vicinity of the rotation fulcrum d2. It has a detection unit 51A and a connecting member 54A. At the tip of the detection unit 51A, a roller 511A that abuts on the rear closing door D2 that rotates in the closing direction is rotatably provided. Further, a connecting portion 52A is provided on the opposite side of the detecting portion 51A with the fixed shaft 53A interposed therebetween. The connecting member 54A is a member that connects the swing member 50A and the cam member 2A, and in this embodiment, it is composed of a non-expandable cord. 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 swing member 50A. With the above configuration, when the rear closing door D2 rotates in the closing direction, the tip of the detection unit 51A abuts on the rear closing door D2 to rotate the swing member 50A, and the swing member 50A is rotated to connect the swing member 50A. The member 54A pulls the cam member 2A in the direction of the actuator 5A. In this way, 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 arranged on the opposite side of the actuator 5A with the cam member 2A interposed therebetween, 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 with the cam member 2A interposed therebetween.

The operation of the apparatus of the first embodiment of the present invention configured as described above will be described. As shown in FIG. 2, in the state where the front closing door D1 and the rear closing door D2 are open, the regulating member 3A is in the storage position housed in the mechanism housing portion g33. The cam member 2A is in the position closest to the returning means 6A (standby position), and the elastic member 61A is in the most contracted state. In this state, the roller 414A, which is the driven cam portion, is located at the end in the first straight line region 211A.

When the rear closing door D2 is rotated in the closing direction, as shown in FIG. 5, the detection unit 51A of the actuator 5A comes into contact with the rear closing door D2, and the swing 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 stays until the relative position of the roller 414A reaches the first inclined region 212A. It does not move, is held in the storage position (position F shown in FIG. 4), and does not protrude to the outside of the beam g3. Further, when the cam member 2A moves and the roller 414A moves in the first inclined region 212A, the roller 414A is pushed out to the front side by the cam surface 21bA, the link member 41A rotates, and the link member 43A rotates. .. The rotation of the link member 43A releases the restriction on the storage position of the restricting member 3A by the engaging projection 432A. Therefore, the restricting member is affected by the urging force of the winding spring inserted between the fixed fulcrum 431A and the restricting member 3A. 3A swings toward the regulation position (position E shown in FIG. 4) together with the link member 43A. Further, when the cam member 2A moves and the roller 414A moves to the third straight line region 213A, the cam member 2A becomes the action position, and the regulation member 3A stops at the regulation position. Since the closing rotation of the rear closing door D2 is regulated by the regulating member 3A, the actuator 5A does not move and the cam member 2A does not move from the action 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 restricting member 3A so as to be a position that does not prevent the front closing door D1 from reaching the closed position. Is set.

Since the restricting member 3A is configured to protrude from the beam g3 immediately before the rear closing door D2 reaches a position that hinders the closing of the front closing door D1, there is also an inconvenience that the restricting member 3A spoils the aesthetic appearance. It will be reduced.

Since the closing of the rear closing door D2 is restricted, the front 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 the regulating member 3A is pushed into the storage position. At this time, since the base end portion of the regulating member 3A rotates in the direction away from the engaging projection 432A of the link member 43A, it rotates independently of the link member 43A. Since the regulation by the restricting member 3A of the rear closing door D2 has been 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 region 214A of the cam surface 21aA and moves toward the rear surface. By moving the roller 414A, the link member 43A moves to a position overlapping the regulating member 3A at the storage position.

When the rear closing door D2 is opened, the swing member 50A becomes free, so that the restriction on the closed position of the cam member 2A is released, and the cam member 2A is moved to the closed position by the return action by pulling the elastic member 61A. Return to the standby position via the action position. At this time, the roller 414A, which is the driven cam portion, moves guided by the cam surfaces 21aA and 21bB, and the link member 43A also swings accordingly, but the restricting member 3A is suppressed to the storage position by the front closing door D1. Therefore, the regulating member 3A does not protrude to the outside of the beam g3. Further, when the front closing door D1 is opened thereafter, the cam member 2A returns to the standby position, so that the regulating member 3A is regulated by the engaging projection 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 long hole on the door side and the long hole are inserted into 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. The connection may be made by a pin, the connecting member 54A may be a rigid link member instead of a rope, and the return means 6A may be omitted. The cam member 2A reciprocates in response 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. 6 to 19. FIG. 6 is a plan view showing the configuration of the door closing order adjusting device 1B. The door closing order adjusting device 1B is housed 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 returning means 6B. have.

7 is a perspective view showing the 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 overlapped and integrated.

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

The cam member 2B is arranged so as to be reciprocally movable along the axis of the beam g3 (the direction parallel to the straight line connecting the axes of the door D1 and the door D2), and as shown in FIGS. 8 to 10. It has cam surfaces 21aB and 21bB erected in a substantially vertical direction. The cam surfaces 21aB and 21bB are arranged in parallel facing each other at predetermined intervals, and a loop-shaped groove 21cB composed of an inner cam surface 21bB and an outer cam surface 21aB is formed.

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

When the cam member 2B reciprocates, the roller 414B, which is a driven cam portion, is guided by the cam surfaces 21aB and 21bB and moves in the front-rear direction (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. Then, the roller 414B moves while being in contact with either the cam surface 21aB or the cam surface 21bB, but when it is located in the first and second straight line regions 211B and 213B, there is no movement in the front-rear direction. When it is located in the first and second inclined regions 212B and 214B, it is moved in the front-rear direction. The regions are connected by a smooth curve, and the roller 414B is configured to move smoothly between the regions.

As shown in FIG. 9, a step portion 24B is formed between the first straight line region 211B and the first inclined region 212B. The step portion 24B is configured so that the second inclined region 214B side is lower than the first straight region region 211B. Further, as shown in FIG. 10, a step portion 25B is formed between the first straight line region 211B and the second inclined region 214B. The step portion 25B is configured so that the first straight line region 211B side is lower than the second inclined region 214B.

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

As shown in FIGS. 11 and 12, the link member 41B has a roller shaft 413B erected at the center thereof, and the roller shaft 413B is externally provided with the roller 414B. A compression spring 415B is externally attached to the roller shaft 413B between the roller 414B and the link member 41B, and the roller 414B is urged downward (toward the tip of the roller shaft 413B). The roller 414B housed 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 which is the driven cam portion. The link member 43B has a fixed fulcrum 431B and is rotatably supported by the fixed fulcrum 431B. Further, the base end portion of the regulating member 3B is rotatably supported on the fixed fulcrum 431B so as to be overlapped with the link member 43B. The regulating 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 connecting link member that transmits movement from the drive link member to the driven link member. Has. 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-shaped vertically long member, and as described above, the base end portion is rotatably supported by the fixed fulcrum 431B. The restricting member 3B has a restricting position (position shown in FIG. 6) at which the tip protrudes toward the rear closing door D2 and a storage position (position shown in FIG. 14) housed in the mechanism accommodating portion g33. ) And swings. The regulating member 3B projects to the outside of the mechanism accommodating portion g33 through the first opening g31. Although not shown, a winding spring is inserted between the fixed fulcrum 431B and the regulation member 3B, and the regulation member 3B is urged toward the regulation position. A roller 31B is rotatably supported at the tip of the regulating member 3B, and the regulating member 3B abuts on the rear closing door D2 via the roller 31B.

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

As shown in FIG. 13, the actuator 5B includes a detection drive member 51B for detecting the amount of rotation of the rear closing door D2, a driven pulley 52B, and a connecting rope 53B. The detection drive member 51B is rotatable toward the beam g3 side with the detection unit 511B extending toward the rotation base end of the rear closing door D2, the roller 512B provided at the tip of the detection unit 511B, and the beam g3. It has a shaft-supported drive gear 513B, and is urged in a direction in which the detection unit 511B comes into contact with the swing base end of the rear closing door D2 by a winding spring (not shown).

A driven pulley 52B is rotatably supported in the vicinity of the detection driving member 51B. The driven pulley 52B has a pulley portion 521B around which the connecting rope 53B is wound and a driven gear 522B arranged on the same rotation axis as the pulley portion 521B, and the driven gear 522B and the pulley portion 521B rotate integrally. Move.

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

When the rear closing door D2 swings in the closing direction, the tip of the detection unit 511B comes into contact with the end of the rear closing door D2 and swings to the right together with the rear closing door D2. As a result, the drive gear 513B rotates, and the rotation is transmitted to the pulley portion 521B via the driven gear 522B. By the rotation of the pulley portion 521B, the connecting rope 53B wound around the pulley portion 521B is wound up. The base end of the connecting rope 53B is wound around the pulley portion 521B, and the tip 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 with the cam member 2B interposed therebetween, 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. There is. The elastic member 61B constantly urges the cam member 2B, and the urging direction is the opposite direction of the actuator 5B with the cam member 2B interposed therebetween.

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

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

With respect to the regulating member 3B, an urging force acts in the direction of projecting from the storage position to the regulating position by the winding spring inserted 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 straight line region 211B (FIG. 8) of the groove 21cB, it is kept in 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 straight line region 211B (FIG. 8). , The regulating member 3B is securely held in the storage position.

As shown in FIG. 15, when the rear closing door D2 is rotated in the closing direction, the detection unit 511B of the actuator 5B comes into contact with the swing base end portion of the rear closing door D2, and the detection drive member 51B Rotates. As a result, the connecting rope 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 urged toward the front (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 portion 24B allows the roller 414B to move in the opposite direction (backward direction). Be blocked. As a result, even if the regulation member 3B that has begun to swing toward the regulation position is pushed back, it does not return to the original storage position. Further, when the cam member 2B moves, the roller 414B moves to the front side, and the regulating member 3B moves to the regulated position.

As shown in FIG. 16, when the rear closing door D2 further swings, the cam member 2B moves to the action position, and the roller 414B reaches the second straight line region 213B. At the same time, the regulation member 3B reaches the regulation position. When the tip of the regulating member 3B is in contact with the rear closing door D2, the roller 414B reaches the boundary between the second straight line region 213B and the second inclined region 214B. When the front closing door D1 swings to the closed position while the tip of the regulating member 3B is in contact with the rear closing door D2, it comes into contact with the regulating member 3B as shown in FIG. , Push in the storage position direction. As a result, the roller 414B moves to the second inclined region 214B, and the closing door D2 also swings toward the closed position after the regulation is released by the regulating member 3B. When the rear closing door D2 resumes swinging, 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 rearward direction. Along with this movement, the regulating member 3B also retracts. As shown in FIG. 18, when the rear closing door D2 is in the closed position and both doors D1 and D2 are in the completely closed state, the cam member 2B is in the position closest to the actuator 5B (closed position). ), The roller 414B is located at the leftmost end of the first straight line region 211B. When the roller 414B is completely moved into the first straight line region 211B, the roller 414B pressed toward the bottom surface by the step portion 25B is restricted from returning to the second inclined region 214B. As a result, the restricting member 3B returned to the storage position is held in the storage position, and when the rear closing door D2 is opened, it is prevented from protruding to the regulation position.

As shown in FIG. 19, when the rear closing door D2 is swung from the closed state to the opened state, the detection unit 511B rotates to the original position, and the connecting rope 53B is extended 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 returning means. By the movement of the cam member 2B, the roller 414B moves in the first straight line region 211B from the right end to the left end. At the time of 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 straight line region 211B, and as a result, the protrusion of the regulating member 3B to the front side is also suppressed.
The door closing order adjusting devices 1A and 1B described above are configured to be housed in the beam g3, but may be located outside the beam g3. For example, it may be attached to the lower side of the beam g3.

As described above, the door closing order adjusting device according to the present invention is suitable for use in fire doors and 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 Strut g3 Beam g31 First opening g32 Second opening g33 Mechanism accommodation part g34 Guide groove 2A, 2B Cam members 3A, 3B Regulator 4A, 4B Link mechanism 5A, 5B Actuator 6A, 6B Return means 21aA, 21aB, 21aB, 21bB Cam surface 21cA, 21cB Groove 22B Connection part 24B, 25B Step part 31A, 31B Roller 21aB, 21bB Cam surface 21cB Groove 211A, 211B 1st straight area 212A, 212B 1st inclined area 214A, 214B 2nd inclined area 215A, 213B 2nd straight area 213A 3rd straight area 41A, 42A, 43A, 41B, 42B, 43B Link member 411A, 431A, 411B, 431B Fixed fulcrum 412A Roller mounting 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 line 54A Connecting member 513B Drive gear 521B Pulley part 522B Driven gear 61A, 61B Elastic member

Claims (6)

A door closing order adjusting device that adjusts the closing order of the pair of doors in a double door consisting of a front-closing door and a rear-closing door that rotate around an axis arranged along a vertical line. ,
The base end portion is pivotally supported in the mechanism accommodating portion provided between the upper ends of the rotation shafts of the pair of doors, and the storage position accommodated in the upper beam and the rear closing door protruding from the mechanism accommodating portion. A restricting member rotatably provided between the closing restricting position where the tip abuts on the side, and
A link mechanism in which both ends are connected between the swinging portion of the regulating member and the mechanism accommodating portion side.
A driven cam unit provided in the link mechanism and
A cam member that has a cam surface that contacts the driven cam portion and can move from a standby position to an action position.
A guide unit that guides the cam member to move along a predetermined trajectory, and
It has an actuator that moves the cam member to the action position based on the rotation of the rear closing door in the closing direction.
The cam surface moves the driven cam portion by moving the cam member between the standby position and the working position, and moves the restricting member between the storage position and the closing restricting position via the link mechanism. A door closing order adjusting device characterized by this. The first aspect of claim 1, wherein the cam member moves to a closed position when the rear closing door is closed, and further has a cam surface for holding a driven cam portion at a position where the restricting member is a storage position. Door closing order adjustment device. The door closing order adjusting device according to claim 2, wherein the cam member has a driven cam portion insertion portion for moving the driven cam portion without moving the driven cam portion when returning from the closed position to the standby position. The regulatory member has an urging member that urges the restricting position, and the link mechanism has a link member that rotates integrally with the restricting member when the restricting member is rotated in the storage position direction. Item 2. The door closing order adjusting device according to any one of Items 1 and 2. The door closing order adjusting device according to any one of claims 1 to 4, wherein a groove for accommodating a driven cam portion is formed by facing cam surfaces. The door closing order adjusting device according to any one of claims 1 to 5, further comprising a returning means for returning the cam member to the standby position when the rear closing door is opened.

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