JP5770034B2 - Door body opening / closing device - Google Patents

Description

  The present invention relates to a door body opening / closing device that manually opens and closes a horizontal pulling opening / closing gate provided at a part of a breakwater or a tide embankment or a horizontal pulling opening / closing door installed at an entrance to a site such as a school or public facility. .

  Various methods have been conventionally developed for opening and closing devices for lateral doors that open and close an opening provided in a part of a breakwater. For example, as disclosed in Patent Document 1, reference is made to “ There is a horizontal pulling breakwater facility.

  This “horizontal breakwater breakwater facility” is used to wind a rope wound between a winch and a ring body with the winch as a driving device and feed it through a cart that moves horizontally by feeding it out. A mechanism for opening and closing is provided.

JP-A-9-59963

  The “horizontal breakwater breakwater facility” described in Patent Document 1 is easy to open and close because the door body is opened and closed by a drive device (winch). However, an electric motor or a prime mover that is a power source of the drive device is used. is necessary.

  On the other hand, a method of opening and closing the door body by a manual rack and pinion mechanism has been proposed, but a long rack gear, a speed reduction mechanism and the like are required, and the structure is complicated.

  The problem to be solved by the present invention is to provide a door body opening / closing device that can be easily opened and closed without a driving source such as an electric motor or a prime mover and that has a simple structure.

The door body opening and closing device according to the present invention includes a manual capstan winch attached to a fixed structure, a door body disposed so as to be able to advance and retreat from the fixed structure, and separated along a moving direction of the door body. A bracket provided at a plurality of positions of the door body; and a cable body stretched between the brackets, and a part of the cable body positioned between the brackets of the manual capstan winch The rotating drum is wound at least once , and an elastic body capable of expanding and contracting in the longitudinal direction of the cable body is interposed between the bracket and the cable body .

  In such a configuration, when a rotating drum is rotated by operating a manual capstan winch attached to a fixed structure, a cable body stretched between a plurality of brackets while being wound around the rotating drum. Since one of the brackets is wound up and the other bracket is fed out, the tensile force due to the cable body on the wound side is transmitted to the door body via the bracket, and the door body moves in the direction of the tensile force. In other words, the door body can be moved forward and backward from the fixed structure by rotating the rotating drum of the manual capstan winch forward and backward, so that the door body can be easily opened and closed without a drive source such as an electric motor or a prime mover. The operation can be performed.

  Further, the door body opening and closing device of the present invention can be constituted by a cable body stretched between brackets provided at a plurality of positions of the door body, and a manual capstan type winch, so the structure is also simple. is there. Furthermore, the door body opening / closing device of the present invention can be formed by retrofitting a cable body, a manual capstan winch, or the like to an existing laterally pulling door body.

Further, in the door opening and closing device of the present invention is a stretchable elastic material is interposed in the longitudinal direction of the rope body between the rope member and the bracket. With such a configuration, an appropriate tension can be constantly applied to the rope body, so that slip between the rotating drum of the manual capstan winch and the rope body can be suppressed.

  Further, the elastic deformation position of the elastic body located on the side where the tension of the rope body increases by the operation of the manual capstan type winch is set to the elastic body located on the side where the tension of the rope body decreases. It is desirable that the distance be smaller than the elastically deformable distance. With this configuration, it is possible to prevent the rope body from being loosened or bent when the manual capstan winch is operated, so that the rotating drum and the rope body of the manual capstan winch It is effective for preventing slipping during

  On the other hand, a guide member for avoiding sliding contact between the strips can be provided around the rotating drum of the manual capstan winch. With such a configuration, when a manual capstan winch is operated, it is possible to prevent frictional damage between the ridge body wound around the rotating drum and the ridge body unwound from the rotating drum. it can.

  In this case, as the guide member, a support shaft disposed so as to three-dimensionally intersect the linear portion of the strip body and the rotating drum, and a rotating body rotatably attached to the support shaft are provided. desirable. With such a configuration, it is effective in preventing friction damage between the ridge body wound around the rotating drum and the ridge body unwound from the rotating drum.

  According to the present invention, it is possible to provide a door opening and closing device that can be easily opened and closed without a driving source such as an electric motor or a prime mover and that has a simple structure.

It is a partially-omission front view which shows the door body opening / closing apparatus which is embodiment of this invention. It is a partially-omission top view of the door body opening / closing apparatus shown in FIG. It is a partially expanded view of the door body opening and closing device shown in FIG. FIG. 3 is a partially enlarged view of the door opening / closing device shown in FIG. 2. It is sectional drawing in the AA of FIG. It is sectional drawing in the BB line of FIG. It is sectional drawing in the CC line of FIG. It is an enlarged view in the DD line of FIG.

  As shown in FIGS. 1 to 4, the door body opening / closing device 10 according to the present embodiment includes a manual capstan winch 12 attached to a breakwater 11 that is a fixed structure, and an opening provided in a part of the breakwater 11. The door body 14 is disposed so as to be able to move forward and backward from the breakwater 11 toward the opening 13 in order to open and close the section 13, and the door body 14 is provided at a plurality of positions separated along the movement direction R of the door body 14. Brackets 15 and 16, and a wire 17 that is a cable body stretched between the brackets 15 and 16, and a part of the wire 17 positioned between the brackets 15 and 16 is formed on the manual capstan winch 12. The rotary drum 18 is wound around 5 turns. Here, the number of windings of the wire 17 around the rotating drum 18 is not limited to five turns, and can be increased or decreased according to the construction conditions.

  As shown in FIGS. 1 and 5 to 7, wheels 19 that are rotatable around a horizontal axis 19 h are provided at a plurality of locations at the lower edge of the door body 14, and at a plurality of locations at the upper edge of the door body 14. Wheels 20 that are rotatable around a vertical axis 20v are provided. A door body 14 is installed in a state where a plurality of wheels 19 are placed on a rail 21 provided substantially parallel to the breakwater 11 on the ground surface S near the opening 13 of the breakwater 11, and along the longitudinal direction of the rail 21. The door body 14 is movable. A plurality of brackets 22 are provided at the upper edge of the breakwater 11 so as to protrude to the side where the door body 14 is disposed, and a plurality of guide rails 23 having a U-shaped cross section face the opening portion downward. The bracket 22 is fixed so as to be substantially parallel to the breakwater 11. When the door body 14 is moved along the rail 21, the wheel 20 at the upper edge of the door body 14 moves along the longitudinal direction in the guide rail 23.

  As shown in FIGS. 3, 4, and 6, the manual capstan winch 12 is installed on a base 24 mounted on the breakwater 11, and includes a manual crank handle 25 and a rotation shaft of the crank handle 25. A winch body 27 that transmits the rotational force of 26 to the rotary drum 18, and a pair of guide members 29 and 30 are erected so as to face each other with the rotary drum 18 interposed therebetween. The guide members 29 and 30 are rotatably attached to the support shafts 29a and 30a and the support shafts 29a and 30a, respectively. The support shafts 29a and 30a are arranged so as to intersect the wire 17 and the rotary drum 18 that form a straight line between the brackets 15 and 16. And cylindrical rotating bodies 29b and 30b.

  The rotating shaft 26 is housed in the shaft cover 28a, and the winch body 27, the rotating drum 18, the guide members 29, 30 and the like are housed in the winch cover 28b. As shown in FIG. 6, since the crank handle 25 can be rotated around the hinge portion 25a, it can be folded when not in use, and the winch cover 28b can be rotated around the hinge portion 28c. During maintenance, the winch main body 27, the guide members 29, 30 and the rotating drum 18 can be exposed as necessary.

  When the crank handle 25 of the manual capstan winch 12 is rotated, the rotating drum 18 rotates through the rotating shaft 26 and the winch body 27, and one of the wires 17 wound around the rotating drum 18 according to the rotating direction. The other side is wound up and the other side is fed out.

  Both ends of the wire 17 are fixed to the upper edge of the door body 14 via brackets 15 and 16, respectively. The locking structure of both ends of the wire 17 with respect to the brackets 15 and 16 is a mirror-symmetrical structure. Therefore, the locking structure and function of the end portion of the wire 17 with respect to the bracket 15 will be described below with reference to FIG.

  As shown in FIG. 8, an elastic body 31 that can be expanded and contracted in the longitudinal direction of the wire 17 is interposed between the bracket 15 and the wire 17 having an inverted L-shaped vertical section. The elastic body 31 disposed between the two vertical wall bodies 15a and 15b constituting the bracket 15 includes a cylindrical guide member 32 having a flange 32f near one end portion 32a, and one end portion 33a flanged. The coil spring 33 is disposed on the other end 33b of the coil spring 33 with a gap 34 between the coil spring 33 disposed on the outer side of the guide member 32 in the state of being in contact with 32f and the other end 32b of the guide member 32. A spring seat 35 disposed in contact therewith.

  The elastic body 31 is inserted into the through-hole 15c provided in the vertical wall 15b through one end portion 32a of the guide member 32, and the flange 31f is in contact with the vertical wall 15 with the vertical wall 15a, 15b. An end clamp screw 36 locked to the end of the wire 17 is disposed in a state of being inserted through the guide member 32, the spring seat 35 and the through hole 15d of the vertical wall 15a, and the end clamp screw 36 and the spring seat 35 are integrated. Fixed. The elastic restoring force that the coil spring 33 intends to extend in the longitudinal direction is transmitted to the wire 17 through the spring seat 35 and the end clamp screw 36, and an appropriate tension is applied to the wire 17.

  In the door opening and closing device 10, when the crank handle 25 of the manual capstan winch 12 attached to the breakwater 11 is rotated to rotate the rotating drum 18 clockwise, the bracket is wound around the rotating drum 18. Since one side of the bracket 16 of the wire 17 stretched between 15 and 16 is wound up and the other side of the bracket 15 is fed out, the tensile force of the wire 17 on the side to be wound up (bracket 16 side) To the door body 14, and the door body 14 moves in a direction to close the opening 13.

  On the other hand, when the crank handle 25 is reversely rotated to rotate the rotary drum 18 counterclockwise, one bracket 15 of the wire 17 stretched between the brackets 15 and 16 is wound around the rotary drum 18. Since the other side of the bracket 16 is drawn out, the tensile force by the wire 17 on the side to be taken up (bracket 15 side) is transmitted to the door body 14 via the bracket 15, and the door body 14 passes through the opening 13. Move in the opening direction.

  As described above, when the crank handle 25 of the manual capstan winch 12 is rotated clockwise / counterclockwise, the rotating drum 18 rotates forward / reversely, and the door body 14 advances toward the opening 13 of the breakwater 11. Since it can be moved backward, the door body 14 can be easily opened and closed without a drive source such as an electric motor or a prime mover.

  Further, the door body opening / closing device 10 can be constituted by the wire 17 stretched between the brackets 15 and 16 provided at a plurality of positions of the door body 14 and the manual capstan type winch 12, so that the structure is also provided. It is simple. Furthermore, the door body opening / closing device 10 can be formed by retrofitting the brackets 15 and 16, the wires 17, the manual capstan type winch 12, and the like to the existing horizontal door body. Is also excellent.

  On the other hand, since an elastic body 31 that can be expanded and contracted in the longitudinal direction of the wire 17 is interposed between the brackets 15 and 16 and both ends of the wire 17, appropriate tension is always applied to the wire 17. The slip between the rotating drum 18 of the manual capstan winch 12 and the wire 17 can be suppressed.

  Further, by providing a gap 34 between the end portion 32b of the guide member 32 and the spring seat 35, the side on which the tension of the wire 17 is increased by the operation of the manual capstan winch 12 (for example, the opening operation of the opening portion 13). The elastic deformable distance (contraction allowance) of the elastic body 31 located on the inner bracket 15 side is the elasticity located on the side where the tension of the wire 17 decreases (for example, the bracket 16 side during the opening operation of the opening 13). It is set to be smaller than the elastically deformable distance (elongation allowance) of the body 31. Therefore, when the manual capstan winch 12 is operated, the wire 17 can be prevented from being loosened or bent, and the slip between the rotating drum 18 of the manual capstan winch 12 and the wire 17 can be reliably ensured. Can be prevented.

  Further, as shown in FIGS. 3 and 4, guide members 29 and 30 for avoiding sliding contact between the wires 17 are provided around the rotating drum 18 of the manual capstan type winch 12. When the manual capstan winch 12 is operated, frictional damage between the wire 17 wound around the rotating drum 18 and the wire 17 fed out from the rotating drum 18 can be prevented.

  In the case of the door opening and closing device 10 of the present embodiment, as the guide members 29 and 30, the support shafts 29a and 30a arranged so as to three-dimensionally intersect the linear portion of the wire 17 and the rotary drum 18, and the support shafts 29a and 30a Since the cylindrical rotating bodies 29b and 30b attached rotatably are provided, frictional damage between the wire 17 wound around the rotating drum 18 and the wire 17 fed out from the rotating drum 18 is prevented. It can be surely prevented.

  In addition, the door body opening / closing apparatus 10 demonstrated based on FIGS. 1-8 shows an example of this invention, and the door body opening / closing apparatus which concerns on this invention is not limited to this.

  The door opening / closing device of the present invention is a manual opening / closing means such as a horizontal opening / closing gate provided at a part of a breakwater or a seawall or a horizontal opening / closing door installed at an entrance to a site such as a school or public facility. Can be widely used.

DESCRIPTION OF SYMBOLS 10 Door body opening / closing apparatus 11 Breakwater 12 Manual capstan type winch 13 Opening part 14 Door body 15, 16, 22 Bracket 15a, 15b Vertical wall body 15c, 15d Through-hole 17 Wire 18 Rotating drum 19, 20 Wheel 19h Horizontal axis 20v Vertical Shaft 21 Rail 23 Guide rail 24 Base 25 Crank handle 25a, 28c Hinge part 26 Rotating shaft 27 Winch body 28a Shaft cover 28b Winch cover 29, 30, 32 Guide member 29a, 30a Support shaft 29b, 30b Rotating body 31 Elastic body 32a 32b End 32f Flange 33 Coil spring 34 Clearance 35 Spring seat 36 End clamp screw S Ground surface

Claims (4)

A manual capstan winch attached to the fixed structure, a door arranged to be able to move forward and backward from the fixed structure, and provided at a plurality of positions of the door separated along the moving direction of the door. And a portion of the rope located between the brackets, and at least one turn of the portion of the rope located between the brackets around the rotating drum of the manual capstan type winch. A door body opening and closing device characterized in that an elastic body capable of expanding and contracting in the longitudinal direction of the strip body is interposed between the bracket and the strip body . The elastic deformable distance of the elastic body located on the side where the tension of the rope body increases by the operation of the manual capstan type winch is the elasticity of the elastic body located on the side where the tension of the rope body decreases. The door body opening / closing device according to claim 1 , wherein the door body opening / closing device is smaller than the deformable distance. The door body opening / closing device according to claim 1 or 2 , wherein a guide member is provided around the rotating drum of the manual capstan winch to avoid sliding contact between the cable bodies. As the guide member, a linear body between the brackets and a support shaft arranged so as to intersect with the rotary drum in three dimensions, and a rotary body rotatably attached to the support shaft were provided. The door body opening and closing device according to claim 3 .

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