JP2006077389A - Watertight door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a watertight door device which is equipped with an erecting device for smoothly erecting a watertight door. <P>SOLUTION: According to the structure of the watertight door device, before the watertight door 3 assumes a predetermined angular position (before a second abutting portion 34a of a hinge device abuts on a first abutting portion 11b of the same), a rotating arm 24 is rotated, so that a boosting arm portion 24c engages with a boosting engaging portion 40 to move a front end 22a of a support arm 22 upward, and at the same time the rotating arm 24 rotates the watertight door 3 in an erecting direction via a slot 25 formed at a front end of a long arm portion 24a of the rotating arm 24. After the watertight door 3 assumes the predetermined angular position, the front end of the long arm portion 24a of the rotating arm 24 is rotatively elevated with respect to the support arm 22, and therefore a pin 26 hooks the slot 25 to raise the entire body of the rotating arm 24, which leads to elevation of the front end of the support arm 22 and upward rotation of the same about a drive shaft 20, to thereby erect the watertight door 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a waterproof door device that mainly prevents water from entering and exiting a building or a parking lot.

As a waterproof door device, Patent Document 1 includes a lift lever attached to a rotary shaft of a final reduction gear in a pit, and the tip of the lift lever is directed upward by the final reduction gear driven through a drive mechanism. It has been disclosed that the other side of the waterproof door, which is pivotally mounted on one side in the pit, is raised by being pivoted to stand up, and the doorway is closed.
Patent Document 2 includes a drive lever that is movably engaged with the lower surface of the waterproof door in a case (accommodating recess) and a chain that swings the drive lever back and forth. The tip of the drive lever is swung forward (upward) by the chain driven to travel through the door, so that the rear side of the waterproof door, the front part of which is mounted upside down in the case, is pushed up to stand up. What is made is described. Patent Documents 3 to 5 are prior documents on hinge devices for waterproof doors.
In view of these prior arts of Patent Documents 1 to 5, the applicant of the present application has applied Japanese Patent Application No. 2003-150711 “Waterproof Door Device” (prior application 1) and Japanese Patent Application No. 2003-426357 “Hinge Device for Waterproof Door” (prior application 2). ). In the prior application 1, as shown in FIG. 6, when the chain a is rotated, the sprocket b rotates, and the rotating arm c integrated with the sprocket b rotates counterclockwise around the axis e at the tip of the support arm d. The waterproof door h is erected from the horizontal via the long hole f and the pin g, and the waterproof door h is raised and the position of the pin g is raised so that the long hole f is hooked and the entire rotary arm c is pulled upward. As a result, the tip (axis e portion) of the support arm d is pulled upward with the drive shaft k as the rotation center, and finally the support arm d and the rotation arm c, as shown by the two-dot chain line in FIG. Are in a straight line to erect the waterproof door h.
JP-A-6-257345 JP 2000-226965 A Japanese Patent Laid-Open No. 10-238239 JP-A-6-257343 JP 2001-254563 A

  In the invention described in the prior application 1, in the whole process of standing up the waterproof door, the pin position engaged with the elongated hole at the tip of the turning lever moves upward according to the standing up of the waterproof door by turning the turning lever. As a result, the operation of raising the waterproof door becomes unsmooth at the initial stage of the waterproof door because the long lever of the rotary lever is hooked and the entire rotary lever is pulled upward and the tip of the support arm is pulled upward. The inconvenience was discovered. The present invention relates to the improvement of the invention described in the prior application 1, and is intended to realize a smooth standing operation of the waterproof door.

  According to the present invention, the waterproof door is supported by the storage recess provided on the floor surface of the doorway so as to be able to be tilted by a hinge device, so that the opening of the storage recess is blocked from the closed state. In this waterproof door device, a drive shaft in the same direction as the waterproof door pivot is rotatably provided on the distal end side of the waterproof door of the housing recess, and a support arm that is rotatable about the drive shaft is provided at the distal end. Provided to face the base of the waterproof door, the drive wheel is fixed to the drive shaft, the long arm part is pushed up on one side of the base part, and the base part of the rotating arm with the arm part is attached to the tip part of the support arm A push-up engaging portion that is pivotably connected to the push-up arm portion is provided via an intermediate shaft, and a rotary wheel having the intermediate shaft as a rotation center is fixed to a base portion of the rotary arm. Connect the long arm tip to the waterproof door through a long hole, When the belt-like body is suspended between the moving vehicle and the rotating vehicle, and the rotary arm is rotated by the drive shaft via the belt-like body and the rotating vehicle, the tip of the push-up arm portion is pushed up to the predetermined standing angle position of the waterproof door. The tip of the support arm is pivoted upward around the drive shaft by engaging with the joint, and after the predetermined angular position, the tip of the long arm of the pivot arm is pivoting with respect to the support arm. The waterproof door is raised by raising the tip end of the support arm and pivoting it upward around the drive shaft.

  The hinge device that is provided on the waterproof door base side of the storage recess and supports the waterproof door so that it can be tilted up and down can swing the base of the swing base in the door tilting direction on the support member fixed to the storage recess The lower end of the first link is pivotally connected to the middle portion of the swing base, the lower end of the second link is pivotally connected to the free end of the swing base, and the waterproof door The upper end portions of the first and second links are rotatably connected to an attachment member fixed to the base portion, a first abutting portion is provided at the intermediate portion of the first link, and the first portion is provided at the intermediate portion of the swing base. A second abutting portion that abuts the first abutting portion when the link is swung downward by a predetermined amount is provided to rotate the waterproof door in a standing direction from a position closing the opening of the housing recess body. The base of the waterproof door is moved to the distal end side of the waterproof door by the differential rotation of the first link and the second link, and the push-up engagement portion and the push-up door are moved. When the upright angle position at which the engagement with the tip of the head part is released is reached, the first contact part of the first link comes into contact with the second contact part of the swing base and the differential rotation of the first link and the second link is performed. It is configured to be able to rotate upward integrally with the swing base by restricting the movement. The push-up engagement portion is provided integrally with the swing base.

  In the present invention, until the waterproof door reaches a predetermined angular position, the pivot arm is pivoted so that the push-up arm portion engages with the push-up engagement portion and pivots while moving the tip of the support arm upward. The waterproof door is pivoted in the upright direction through the long hole at the distal end of the long arm portion of the arm, and after the predetermined angular position, the distal end of the long arm portion of the pivoting arm rises while pivoting with respect to the support arm. The support arm tip is lifted up and rotated upward around the drive shaft to erect the waterproof door, so that the entire rotary arm can be pulled up through the long hole until the waterproof door reaches a predetermined angular position. Since the support arm is not moved upward, the tip end of the support arm is pulled up by lifting the entire pivot arm by moving the connecting part of the pivot arm and the waterproof door over the entire process of standing up the waterproof door. Prior application 1 Compared with, it can be performed smoothly standing operation.

  Embodiments of the present invention will be described with reference to FIGS. The waterproof door device 1 includes a tilting position P1 (FIG. 3) that closes the upper door of the housing recess 2 embedded in the floor surface (lower surface) F of the passage portion of the entrance / exit of a building or a parking lot. It is tilted by a tilting device 31 described later between the standing position P2 (FIG. 5) that closes the entrance / exit. The storage recess 2 is box-shaped with an upper opening, and is installed in a rectangular storage recess 4 formed on the floor F of the entrance / exit. An edge member 5 is attached along the inside of the opening of the housing recess 4. On the front plate 2a side of the housing recess 2, a door frame 7 provided with a sealing material (packing member) 6 is attached to wall surfaces (not shown) on both the left and right sides of the passage. In this embodiment, the floor surface F of the passage in which the door frames 7 and 7 are provided is slightly inclined toward the base 3b side of the door 3 with respect to the horizontal. A horizontal sealing material (packing member) 8 is attached to the front plate 2 a of the housing recess 2, and both ends of the sealing material 8 are continuous with the lower end side of the sealing material 6 in the direction along the length of the door frame 7. I'm allowed.

  When the waterproof door 3 is located at the tilted position P1, a support member 15 having an L-shaped cross section with which the lower surface of the front end portion (free end portion) 3a of the waterproof door 3 abuts is attached to the rear plate 2b of the housing recess body 2. is there. When the waterproof door 3 is in the tilted position P1, the upper surface of the waterproof door 3 is flush with the floor surface F.

  The hinge device 33 will be described. A support member 10 including a pair of brackets is fixed to the left and right of the front plate 2a on the base plate 60 attached to the bottom plate 2c of the housing recess 2. A base portion of the swing base 11 is sandwiched between each pair of brackets constituting the support member 10, and the swing base 11 is pivotally attached by a pivot 12 so as to be swingable in the up and down direction of the waterproof door 3. As shown in FIG. 2, the swing base 11 has a groove formed at the center in the width direction, and side walls 11 a on both sides of the groove. The upper surface of the groove portion constitutes the second contact portion 11b. The lower surface of the swing base 11 is in contact with the upper surface of the base plate 60 when the waterproof door 3 is in the tilted position P1 as shown in FIG. Further, in the intermediate portion of the swing base 11 (between the pivot 12 and the free end portion of the base 11), the lower end portion of the L-shaped first link 34 is inserted between the side wall portions 11a. The lower pivot 14b is rotatably connected. Further, a free end portion of the swing base 11 is rotatably connected by a second pivot shaft 36b in a state where a lower end portion of a second link 35 longer than the first link 34 is inserted between the side wall portions 11a. . A push-up engagement portion (cam body) 40 in which the tip of the push-up arm portion 24c of the turning arm 24 moves in sliding contact with the lower portion of one side surface of the swing base 11 when the turning arm 24 described later is turned is integrated. Is provided.

  The waterproof door 3 is formed so as to close the opening of the housing recess 2, and a mounting member 13 is fixed to the waterproof door base 3 b so as to face the hinge device 33. The upper end of the first link 34 is pivotally attached to the portion of the attachment member 13 near the door frame 7 by the first upper pivot shaft 14a, and the upper end of the second link 35 is attached to the portion of the attachment member 13 far from the door frame 7. Is pivotally attached by a second upper pivot shaft 36a. A first contact portion 34a is formed below the bent middle portion of the first link 34. When the first link 34 is swung downward (toward the right in FIG. 3) by a predetermined amount, the first contact portion 34a is formed. The contact portion 34 a enters between the pair of side wall portions 11 a and comes into contact with the second contact portion 11 b of the swing base 11.

  At the timing when the first contact portion 34a of the first link 34 contacts the second contact portion 11b, the engagement between the push-up arm portion 24c and the push-up engagement portion 40 of the rotating arm 24 described later is released. Is set to

  Next, the raising / lowering device 31 of the door 3 is demonstrated. Reference numeral 16 denotes a drive motor disposed in the housing recess 2, and a gear unit 18 is connected to the drive motor 16. One end of a drive shaft 20 in the same direction as the pivot 12 is connected to the left and right sides of the gear unit 18 via a coupling member 19. The drive shaft 20 can be rotated forward and backward by a drive motor 16 via a gear unit 18.

  The other end portions of the left and right drive shafts 20 are supported by brackets 21 installed on the base plate 60 on the left and right sides of the rear plate 2b. Further, a base portion 22b of each pair of support arms 22 is attached to the other end portion of the drive shaft 20 so as to be rotatable relative to the drive shaft 20 with a space therebetween. The tip portions 22a of the two support arms 22 are connected to the waterproof door base portion 3b side by an intermediate shaft 23. The rotating arm 24 is integrally provided with a long arm portion 24a on one side of its own base portion 24b and a push-up arm portion 24c on the other side. The base 24b of the rotating arm 24 is attached to the intermediate shaft 23 between the support arms 22 so as to be relatively rotatable about the intermediate shaft 23. The distal end portion of the long arm portion 24a of the rotating arm 24 is provided so as to face the distal end portion 3a of the waterproof door 3, and a long hole 25 is provided in the distal end portion along the length of the arm. A pin 26 provided on a bracket 27 attached to the lower surface on the front end side of the waterproof door 3 is movably guided in the long hole 25. The front end side of the waterproof door 3 of the long hole 25 is a predetermined standing angle position (here 45 degrees) of the waterproof door 3 when the first and second contact portions 34a and 11b of the hinge device 33 are in contact. Until then, the pin 26 can move along the long hole 25, and is formed so as to contact the pin 26 when the standing angle is reached (FIG. 4).

  A first chain wheel (rotating wheel) 28 having the intermediate shaft 23 as a rotation center is fixed to the base 24b of the rotation arm 24. A second chain wheel (drive wheel) 29 is fixed to the drive shaft 20 between the support arms 22. An endless chain (band-like body) 30 is suspended around the first chain wheel 28 and the second chain wheel 29 so that the door 3 is tilted together with the drive motor 16 and the like by rotating the rotating arm 24. It has become. It is also possible to use a cord-like body such as a wire rope instead of the chain.

  Next, operation | movement of the waterproof door apparatus 1 comprised as mentioned above is demonstrated. The waterproof door device 1 is normally in the tilt position P1 shown in FIG. At this time, the end face of the waterproof door base portion 3b is arranged close to the edge member 5 on the front plate 2a side, and the waterproof door 3 closes the opening of the housing recess body 2 with almost no gap. Therefore, traffic safety and aesthetics can be secured. The waterproof door 3 is erected and rotated by the raising / lowering device 31 when it is predicted that the heavy rain will cause inundation at the entrance / exit of the building or parking lot.

  When the second chain wheel 29 is rotated counterclockwise in FIG. 3 by driving the drive shaft 20 from the state where the waterproof door 3 is in the tilted position P1, the rotating arm is moved via the endless chain 30 and the first chain wheel 28. 24 rotates counterclockwise about the intermediate shaft 23, the cam follower 50 at the tip of the push-up arm portion 24c moves along the upper surface of the push-up engagement portion 40, and the tip of the support arm 22 is rotated about the drive shaft 20 as a rotation center. While moving upward, the long hole 25 of the long arm portion 24 a swings the waterproof door 3 upward in the up-down direction via the pin 26 while relatively moving along the pin 26. Since the relative movement of the pin 26 and the long hole 25 continues until the first contact portion 34a contacts the second contact portion 11b, the operation of raising the waterproof door 3 is performed smoothly. At this time, the first link 34 of the hinge device 33 rotates downward (rightward in FIG. 3) about the first lower pivot 14b, and the second link 35 faces upward (rightward in FIG. 3) about the second lower pivot 36b. ).

  The first contact portion 34a contacts the second contact portion 11b at a predetermined angular position in the middle of standing, and the first and second links 34 and 35 are centered on the first lower shaft 14b and the second lower shaft 36b, respectively. Rotation is restricted. In the standing process until the first abutting portion 34a abuts on the second abutting portion 11b (FIGS. 3 to 4), the push-up engaging portion 40 whose lower end of the push-up arm portion 24c is provided integrally with the swing base 11 is provided. Since it is pushed downward, the swing base 11 does not rotate in the standing direction around the pivot 12 (does not rise). Further, in this process, the rotation of the first link 34 is larger than the rotation of the second link 35, and the base 3 b of the waterproof door 3 is moved relative to the front plate 2 a by the differential rotation of the first link 34 and the second link 35. Swing backward while moving back (moving backward). For this reason, interference with the front board 2a side part of the edge material 5 of the waterproof door base 3b and the accommodation recessed part 4 can be prevented. Thus, when the upright angle position (here 45 degrees) where the first abutting portion 34a and the second abutting portion 11b abut, the tip of the push-up arm portion 24c and the push-up engagement portion 40 are disengaged. The long tip of the long hole 25 at the tip of the long arm portion 24a contacts the pin 26 (FIG. 4).

  When the rotating arm 24 is further rotated from the state of FIG. 4, the distal end of the long arm portion 24 a further rotates the waterproof door 3 in the upright direction via the pin 26 of the waterproof door 3. Is hooked to raise the entire rotating arm 24 upward, so that the tip 22a of the support arm 22 is pulled up. In the state of FIG. 4 in which the engagement between the push-up arm portion 24c and the push-up engagement portion 40 is released, the waterproof door 3 is already at an angular position of 45 degrees, and thereafter, the waterproof door 3 is connected to the waterproof door 3 via the pin 26. Since the component force in the direction of raising the waterproof door 3 from the rotating arm 24 that acts is increased, the rotational force by the rotating arm 24 can be applied to the waterproof door 3 efficiently. Further, in the standing process after the first contact portion 34a and the second contact portion 11b contact each other, the downward rotation of the first link 34 causes the first contact portion 34a and the second contact portion 11b. Therefore, the first and second links 34 and 35 are integrated with the swing base 11 while the link operation is fixed. Accordingly, the waterproof door 3 is swung in the standing direction about the pivot 12 via the swing base 11. As a result, the waterproof door base 3b approaches the front plate 2a, contrary to the above, and when the rotation stopper 51 provided on the base 24b of the rotation arm 24 comes into contact with the support arm 22, the rotation arm 24 The rotation is stopped and the rotation arm 24 becomes linear with respect to the support arm 22, and the pushing member 52 at the tip of the long arm portion 24 a presses the waterproof door 3 in the directions of the sealing materials 6 and 8, as shown in FIG. The waterproof door 3 is pressed against the sealing materials 6 and 8 in the standing position.

  In the standing process after the first and second links 34 and 35 are fixed, the movement trajectory of the waterproof door base 3b draws an arc centered on the pivot 12, but the trajectory approximates a straight line because the movement distance is short. The waterproof door base 3b moves substantially horizontally toward the sealing materials 6 and 8 and presses substantially vertically, so that the sealing material 6 and 8 can be securely pressed together to improve the sealing effect and the sealing material 6 , 8 can be prevented. Also, when tilting, it operates in the opposite direction. Thus, since the hinge device 33 has a rotational structure around the plurality of axes of the first and second links 34 and 35 and the swing base 11, it is compared with a sliding structure using a long guide hole and a roller guided thereby. Thus, there is little risk of clogging with sand, dust and the like entering the storage recess 2 and a smooth swinging operation can be expected.

It is a top view of the waterproof door device of the present invention. It is the II-II sectional view taken on the line of FIG. It is a side view of the waterproof door apparatus which made the waterproof door tilted position. It is a side view of the waterproof door apparatus in the standing angle position where the 1st contact part of the 1st link and the 2nd contact part of the swing base contacted. It is a side view of the waterproof door apparatus which made the waterproof door the standing position. It is a figure explaining prior application 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waterproof door apparatus 2 Storage recessed part 3 Waterproof door 3a Waterproof door front-end | tip part 3b Waterproof door base 6,8 Seal material 10 Support member 11 Swing base 11a Side wall part 11b 2nd contact part 12 Pivot 13 Mounting member 20 Drive shaft 22 Support arm 23 Intermediate shaft 24 Rotating arm 24a Long arm portion 24b Base portion 24c Push-up arm portion 25 Long hole 28 First chain wheel (rotating wheel)
29 Second chain wheel (drive vehicle)
30 Endless chain (band)
33 Hinge device 34 1st link 34a 1st contact part 35 2nd link 40 Push-up engagement part

Claims (3)

The waterproof door is supported by a storage recess provided on the floor surface of the doorway so as to be able to rise and fall by a hinge device, and the waterproof door is erected from a state where the opening of the storage recess is closed to a state where the doorway is closed. In the device, a drive shaft in the same direction as the waterproof door pivot is rotatably provided on the distal end side of the waterproof door of the housing recess, and a support arm that can be rotated around the drive shaft is provided at the distal end of the waterproof door base. The base of the rotary arm provided with a drive arm fixed to the drive shaft, a long arm portion on one side of the base and a push-up arm on the other side via the intermediate shaft at the tip of the support arm And a push-up engaging part that engages and disengages with the push-up arm part, and a rotating wheel having an intermediate shaft as a rotation center is fixed to the base part of the rotating arm, and the distal end of the long arm part of the rotating arm Is connected to the waterproof door through a long hole, and When the belt-like body is suspended around the vehicle and the rotary arm is rotated via the belt-like body and the rotating vehicle by the drive shaft, the tip of the push-up arm portion is connected to the push-up engagement portion up to a predetermined standing angle position of the waterproof door. Engage and rotate the tip of the support arm upward about the drive shaft. After the predetermined angular position, the tip of the long arm of the pivot arm rises while rotating relative to the support arm. The waterproof door device is characterized in that the waterproof door is raised by lifting the tip of the support arm and rotating it upward around the drive shaft. The hinge device that is provided on the waterproof door base side of the storage recess and supports the waterproof door so that it can be tilted up and down can swing the base of the swing base in the door tilting direction on the support member fixed to the storage recess The lower end of the first link is pivotally connected to the middle portion of the swing base, the lower end of the second link is pivotally connected to the free end of the swing base, and the waterproof door The upper end portions of the first and second links are rotatably connected to an attachment member fixed to the base portion, a first abutting portion is provided at the intermediate portion of the first link, and the first portion is provided at the intermediate portion of the swing base. A second abutting portion that abuts the first abutting portion when the link is swung downward by a predetermined amount is provided to rotate the waterproof door in a standing direction from a position closing the opening of the housing recess body. The base of the waterproof door is moved to the distal end side of the waterproof door by the differential rotation of the first link and the second link, and the push-up engagement portion and the push-up door are moved. When the upright angle position at which the engagement with the tip of the head part is released is reached, the first contact part of the first link comes into contact with the second contact part of the swing base and the differential rotation of the first link and the second link is performed. The waterproof door device according to claim 1, wherein the waterproof door device is configured to be able to rotate upward integrally with the swing base by restricting movement. The waterproof door device according to claim 2, wherein a push-up engagement portion is integrally provided on the swing base.

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