JP5116436B2 - Gate drop device - Google Patents

Description

  The present invention relates to a gate dropping device.

In various types of gates such as telescopic gates, folding gates, and double doors, a dropping rod device has been widely used in order to lock the door body to the ground side in an open state, a closed state, or the like. Conventionally, this dropping rod device is provided with a dropping rod that can be moved up and down in the vertical member of the door body, and a knob is provided on the upper end side of the dropping rod, which corresponds to the amount of vertical movement of the dropping rod on the vertical member. A long slot-shaped guide groove and an engaging recess that is recessed in the lateral direction from the upper end of the guide groove and engages the pick bar at the raised position of the drop bar are formed in an inverted L shape. The tip of the knob is gripped, the knob is engaged with and disengaged from the engaging recess at the rising position of the dropping bar, and the dropping bar is operated vertically along the guide groove (patent) Reference 1).
JP-A-9-217573

  In the conventional drop bar device, the vertical guide groove formed in the vertical member and the knob stick protruding outward from the guide groove are exposed to the outside, so that part of the door rod is not good in appearance. There is a drawback that the overall design is impaired. In addition, since the picking rod protrudes outward from the vertical member, there are problems such as being caught by clothes or other objects caught on the picking rod, or dropping the rod on the ground without your knowledge. is there.

  SUMMARY OF THE INVENTION In view of the above-described conventional problems, the present invention provides a gate dropping rod device that is good in appearance and can improve the design of a door body and can prevent clothes and other objects from being caught on an operation unit. Objective.

The present invention includes a drop bar 23 provided in the vertical members 9 and 55 so as to be movable up and down, and fitted to the outer periphery of the vertical members 9 and 55 so as to be movable up and down and operating the drop bar 23 in the vertical direction. A cylindrical operating body 24 and holding means 25 for holding the drop bar 23 in the raised position are provided , and the vertical members 9 and 55 guide a connecting pin 39 for connecting the operating body 24 and the holding means 25. The operating body 24 has a length that covers the guide groove 38 when the drop bar 23 moves up and down.

The operating body 24 is preferably slidable on the longitudinal members 9 and 55 via sliding bodies 40 and 41 having wear resistance . It is desirable that the vertical members 9 and 55 and the operation body 24 are cylindrical.

  The holding means 25 swings in an engagement / disengagement direction with respect to the engagement pin 27 provided on one of the vertical members 9 and 55 and the drop bar 23 and on the other side with respect to the engagement pin 27. An engagement tool 29 that is pivotally supported, and a spring 30 that urges the engagement tool 29 in the engagement direction are provided. There may be provided guide portions 35 and 36 for guiding the engagement tool 29 in the engagement / disengagement direction with respect to the engagement pin 27 during vertical movement.

  A stopper 32 for holding the engagement tool 29 may be provided in such a posture that the engagement portion 31 can engage with the engagement pin 27 when the drop bar 23 is raised. The engaging pins 27 are provided on the vertical members 9 and 55 above the dropping rod 23 in the raised position, and the lower portion of the engaging tool 29 is inserted into the dropping rod 23 to connect the engaging pins 27 and The spring 30 may be provided in the drop bar 23 on the lower side of the pivot 28 and pivotally attached by a substantially parallel pivot 28.

  According to the present invention, there is an advantage that the appearance can be improved and the design of the door body can be improved, and the clothes and other objects can be prevented from being caught on the operation unit.

  Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 9 illustrate a first embodiment of the present invention employed in a horizontal pantograph-type telescopic gate.

  As shown in FIGS. 1 (A) to 1 (C), the telescopic gate is composed of a suspension column 3 and a door-to-door column 4 erected on the ground 2 on both the left and right sides of the entrance 1 and the suspension column 3 and the door. A door body 5 is provided between the contact struts 4 so as to be extendable in the left-right direction and opens and closes the entrance 1. A lock receiving frame 7 is fixedly connected to the door support column 4 via a pair of upper and lower connecting members 6.

  The door body 5 includes a pair of upper and lower pantograph mechanisms 8 configured to be extendable in the left-right direction, and a plurality of connecting bars 9 and 10 in the left-right direction that connect the two pantograph mechanisms 8 up and down. 1 (A) and (B), and a contracted state (open state) shown by a two-dot chain line in FIG. A) It can be expanded and contracted between an extended state (closed state) indicated by a solid line in (B), and can be rotated and stored around a hinge 11 described later in a contracted state.

  Further, the door body 5 is provided with a locking end frame 14 having a handle 13 or the like on the door-contacting side, and the locking end frame 14 comes into contact with the locking receiving frame 7 and is locked. Further, the door body 5 is provided with an intermediate drop bar device 15 at a substantially central part in the left-right direction and an end drop bar device 16 at the locking end frame 14. In addition, a traveling wheel 17 that travels on the ground 2 is provided at a substantially central portion of the door body 5, at a door end side.

  As shown in FIGS. 2 (A) and 2 (B), the pantograph mechanism 8 has a plurality of pairs of intermediate link members 18 arranged in the left-right direction so as to intersect with each other in an X shape, and an eight shape at both ends. And a pair of end link members 19 that are stretchable in the horizontal direction around the vertical axis via the connecting bars 9 and 10 and the connecting shaft 20. The pair of intermediate link members 18 are connected to each other by a connecting bar 9 at a substantially central intersection, and each pair of intermediate link members 18 adjacent in the left-right direction is rotated relative to each other by a connecting bar 10. It is connected freely.

  The pair of end link members 19 are connected to the distal end portion of the intermediate link member 18 on the corresponding end portion side by the connecting bar 10 so that the inner end side is relatively rotatable, and the outer end side is close to the connecting frame 21 in the front-rear direction. Are connected to a connecting shaft 20 arranged in a freely rotatable manner. Both ends of the upper and lower pantograph mechanisms 8 are connected up and down via a connecting frame 21, and the door-side connecting frame 21 is fixed to the locking end frame 14.

  The end drop bar device 16 is for restricting the forward and backward movement of the lock end frame 14 when the door body 5 is contracted or rotated and housed, and is provided in the lock end frame 14 so as to be movable up and down. The drop bar 22 is engaged with and disengaged from the drop hole 23a on the ground 2 side.

  The intermediate drop bar device 15 is for restricting the forward and backward movement of the intermediate portion when the door body 5 is in the extended state. As shown in FIGS. A drop bar 23 that is inserted into the connecting bar (vertical member) 9 so as to be movable up and down, and an operating body 24 that is fitted on the outer periphery of the connecting bar 9 so as to be movable up and down and that operates the drop bar 23 in the vertical direction. And holding means 25 for detachably holding the drop bar 23 in the raised position (position shown in FIG. 3A), and the lower end of the drop bar 23 is engaged with the drop hole 26 on the ground 2 side. ing.

  The connecting bars 9 and 10 are constituted by a cylindrical body having a length extending over the upper and lower pantograph mechanisms 8, and three or more, for example, four ribs 27 a are vertically arranged on the inner periphery thereof at substantially equal intervals in the circumferential direction. It is provided at substantially the entire length in the direction. The drop bar 23 and the operating body 24 are formed of a cylindrical body, and are provided substantially concentrically on the inner and outer periphery of the connecting bar 9.

  The dropping bar 23 is supported and guided so as to be slidable in the vertical direction by the rib 27a of the connecting bar 9, and a lowering position (position of FIG. 3 (B)) where the lower end engages with the dropping hole 26 of the ground 2 and the dropping hole. It is possible to move up and down between the raised position deviated upward from 26. Note that the lower end of the drop bar 23 protrudes slightly downward from the connecting bar 9 even in the raised position.

  The holding means 25 includes an engagement pin 27 that is fixed in a substantially diametrical direction through the connecting bar 9 in the vicinity of the upper portion of the drop bar 23 in the raised position, and an intermediate pin in the vertical direction within the drop bar 23. And an engagement tool 29 pivotally supported in an engagement / disengagement direction with respect to the engagement pin 27 by a pivot 28 that is substantially parallel to the engagement pin 27, and a spring 30 that urges the engagement tool 29 in the engagement direction. ing.

  The engaging tool 29 has a vertically long shape, and its lower half is inserted into the upper side of the drop bar 23, and its vertical center is pivotally supported by the drop bar 23 by a pivot 28. The engaging tool 29 is provided with an engaging portion 31 at its upper end, a stopper 32 in the middle, and a spring support 33 at its lower end. The pivot 28 is fitted with ring-shaped spacers 34 on both sides of the engagement tool 29.

  On both upper and lower sides of the engaging portion 31, guide portions 35 and 36 are formed that are guided by the engaging pin 27 when the drop bar 23 moves up and down and swing the engaging tool 29 in the disengagement direction against the spring 30. The engaging portion 31 including the guide portions 35 and 36 on both the upper and lower sides is substantially triangular or trapezoidal.

  The stopper 32 abuts on the upper end of the drop bar 23 when the engagement part 31 is disengaged from the engagement pin 27, and the guide part 35 contacts the engagement pin 27 when the drop bar 23 is raised so that the engagement part 31 is This is for holding the engagement tool 29 in a posture capable of being engaged with the engagement pin 27.

  The spring support portion 33 is formed by bending the engagement tool 29 in an L shape, and a spring 30 interposed between the inner periphery of the drop bar 23 and the engagement tool 29 is fitted into the spring support portion 33. ing.

  The operating body 24 is connected to the dropping bar 23 through a connecting pin 39 that penetrates the through hole 37 of the dropping bar 23 and the guide groove 38 of the connecting bar 9 in a substantially diametrical direction. It can be operated in the vertical direction.

  The connecting pin 39 is fixed to the operating body 24 at the approximate center in the vertical direction or in the vicinity thereof, and the operating body 24 has a length that can cover the guide groove 38 in both the raised position and the lowered position. 39 on both upper and lower sides. The guide groove 38 is formed in the vertical direction over at least the range of the ascending position and the descending position of the drop bar 23.

  The upper and lower ends of the operating body 24 are wear-resistant across the inner peripheral side from the end face so as to prevent damage to the surface of the connecting bar 9 during its vertical movement and to prevent injury during operation. Sliding cylinders 40 and 41 made of synthetic resin or the like having a property are fitted.

  The engaging pin 27, the pivot 28, and the connecting pin 39 are constituted by spring pins or the like and fixed by rivets 42 to 44 such as connecting rivets 9, drop bars 23, blind rivets or the like driven into both ends from the outside of the operating body 24. Yes. The engaging pin 27, the pivot 28, and the connecting pin 39 are provided substantially in parallel in the front-rear direction. The connecting pin 39 need not be substantially parallel to the engaging pin 27 and the pivot 28.

  In the telescopic gate having the above-described configuration, when the doorway 1 is closed, the door body 5 is extended and the locking end frame 14 is brought into contact with the locking receiving frame 7 and locked. Then, the dropping rod 23 of the intermediate dropping rod device 15 is dropped into the dropping hole 26 on the ground 2 side and locked.

  At this time, the intermediate drop rod device 15 is operated as follows. In the state where the drop bar 23 is raised, the drop bar 23 is held in the raised position by the engagement portion 31 of the engagement tool 29 engaging the engagement pin 27 as shown in FIG. Yes.

  When dropping the drop bar 23 into the drop hole 26, the operating body 24 is gripped and pushed down along the connecting bar 9. Then, the lower guide portion 36 of the engaging portion 31 slides with respect to the engaging pin 27, and the engaging tool 29 separates around the pivot 28 against the spring 30 as shown by a two-dot chain line in FIG. 4 is rotated in the direction indicated by the arrow a in FIG. 4, the engaging portion 31 is detached from the engaging pin 27 and passes downward. Therefore, it is only necessary to operate the operating body 24 downward to drop the lower end portion of the drop bar 23 into the drop hole 26 on the ground 2 side.

  The engaging tool 29 released from the engaging pin 27 is in a state in which its stopper 32 is in contact with the upper end of the drop bar 23. Therefore, when the lock rod 23 is pulled out from the drop hole 26 to release the lock, the operating body 24 is grasped and raised along the connecting bar 9. Then, since the connecting pin 39 is guided by the guide groove 38, the operating body 24 and the dropping bar 23 are integrally lifted while the engaging tool 29 is maintained in a predetermined posture, and the dropping bar 23 comes out of the dropping hole 26.

  When the operating body 24 is raised to the vicinity of the raised position, the guide part 35 on the upper side of the engaging part 31 slides with respect to the engaging pin 27, and the engaging tool 29 moves around the pivot 28 against the spring 30. a Turns in the direction of the arrow. When the engaging portion 31 passes through the engaging pin 27, the engaging tool 29 is returned by the spring 30, and the engaging portion 31 engages with the engaging pin 27, whereby the drop bar 23 and the operating body 24 are moved. It can be held in the raised position.

  Accordingly, by operating the operating body 24 linearly in the vertical direction along the connecting bar 9, the engaging pin 27 and the engaging tool 29 of the holding means 25 can be engaged and disengaged. Thus, the drop bar 23 can be easily operated. Further, since the operating body 24 is fitted on the connecting bar 9, the operating body 24 can be operated under the same conditions from both sides of the door body 5 in the front-rear direction.

  Since the operation body 24 is constituted by a cylindrical body fitted around the outer periphery of the connecting bar 9 and has a length that covers the guide groove 38 of the connecting bar 9, the appearance of the operating body 24 is improved as compared with a conventional knob or the like. The design of the door body 5 is further improved. Furthermore, since the operating body 24 is a cylindrical body, it is possible to prevent a possibility that something is caught on the operating body 24.

  The holding means 25 is engaged with the drop bar 23 by an engagement pin 27 provided on the connecting bar 9 on the upper side of the drop bar 23 and a pivot 28 whose lower part is inserted into the drop bar 23 and substantially parallel to the engagement pin 27. An engaging tool 29 pivotally supported in the engagement / disengagement direction with respect to the coupling pin 27, and provided in the drop bar 23 below the pivot 28 and biasing the engaging tool 29 in the engaging direction. The engaging member 29 is provided on both the upper and lower sides of the engaging part 31 and guides the engaging tool 29 in the engaging and disengaging direction with respect to the engaging pin 27 when the drop bar 23 moves up and down. , 36, the holding means 25 can be incorporated in the connecting bar 9 together with the drop bar 23 in a compact manner.

  10 and 11 illustrate a second embodiment of the present invention. In this embodiment, the engagement pin 27 is provided at the upper end portion of the drop bar 23, and the pivot 28, the engagement tool 29, and the spring 30 are provided on the connecting bar 9 side. The engagement tool 29 is upside down, and a notch 46 is provided at the upper end of the drop bar 23 corresponding to the engagement part 31 on the lower end side of the engagement tool 29. In addition, an opening 47 for incorporation is formed in the connecting bar 9 corresponding to the engagement tool 29 and the like. The stopper 32 comes into contact with the inner periphery of the connecting bar 9.

  Thus, the engagement pin 27, the engagement tool 29, and the like constituting the holding means 25 may be provided on either side of the drop bar 23 or the connecting bar 9. Further, even if the connecting bar 9 is provided with the opening 47 for installation, it can be closed by the operating body 24. Therefore, even when the holding means 25 is arranged in the middle portion in the longitudinal direction of the connecting bar 9, the mounting is easily performed. be able to.

  FIG. 12 illustrates a third embodiment of the present invention. The holding means 25 includes a permanent magnet 49 fixed to the connecting bar 9 with a fixing pin or the like, and a magnetic body 50 provided on the upper end of the drop bar 23, and the permanent magnet 49 attracts the magnetic body 50. The dropping bar 23 is held in the raised position. The permanent magnet 49 is molded in a covering material 52 made of a nonmagnetic material such as synthetic resin, and is fixed in the connecting bar 9 by a pin 51 through the covering material 52.

  In this way, the holding means 25 may be a magnet type. The permanent magnet 49 may be provided on the drop bar 23 and the magnetic body 50 may be provided on the connecting bar 9.

  13 and 14 illustrate a fourth embodiment of the present invention. In this embodiment, a guide groove 38 that guides the connecting pin 39 between the raised position and the lowered position is formed in the connecting bar 9 in a gentle spiral shape, and on the upper end side of the guide groove 38, the connecting pin 39 is provided. Is provided with an engaging recess 53 that engages at the raised position. The engaging recess 53 and the connecting pin 39 constitute the holding means 25.

  In this case, when the operating body 24 is operated in the upward direction, the connecting pin 39 is guided along the guide groove 38 of the connecting bar 9, so that the operating body 24 rotates around the connecting bar 9 while moving up. When the operating body 24 is slightly lowered after the connecting pin 39 reaches the upper end of the guide groove 38, the connecting pin 39 engages with the engaging recess 53 and the drop bar 23 can be held at the raised position.

  In this way, the operating body 24 may be moved up and down while rotating around the connecting bar 9. Further, an engaging recess 53 that is recessed in the circumferential direction may be formed on the upper end side of the guide groove 38 that is substantially straight in the vertical direction, and the connecting pin 39 may be held by the engaging recess 53.

  FIG. 15 illustrates a fifth embodiment of the present invention. In this embodiment, a drop bar 23 is inserted into an up-and-down square tube member (vertical member) 55, and a square tube-shaped operation body 24 is fitted over the outer periphery of the square tube member 55 so as to be movable up and down. . The operating body 24 has a vertical slit 56 in a part of the circumferential direction, and is not a rectangular tube. Other configurations are substantially the same as those of the intermediate drop bar device 15 of the first or second embodiment.

  Thus, when the operating body 24 is fitted on the outer periphery of the rectangular tube material 55, the operating body 24 may be configured in a rectangular tube shape in accordance with the rectangular tube material 55. That is, the operation body 24 is not limited to a cylindrical body whose entire circumference is closed, and even if the slit 56 or other notches are formed in a part of the circumferential direction, the entire shape of the operation body 24 is not limited. It is sufficient if it has a shape close to a cylindrical body, such as a substantially cylindrical shape.

  When the operation body 24 has a shape close to a cylindrical body in which a slit 56 or other notch is formed in a part of the circumferential direction, the notch such as the slit 56 is formed on the fingertip when the operation body 24 is gripped by a hand. It is desirable to arrange at a position deviating from the above.

  As mentioned above, although the Example of this invention was explained in full detail, it is not limited to this Example, A various change is possible in the range which does not deviate from the meaning of this invention. For example, in the embodiment, the intermediate dropping rod device 15 of the horizontal link type telescopic gate is illustrated, but other dropping rod devices other than this can be used in the same manner, and of course, other than the horizontal link type telescopic gate door. In other words, it can also be used in various types of gate dropping devices other than telescopic gates.

  As the vertical member, a connecting bar 9 and a rectangular tube material 55 are illustrated, and as the operation body 24, a cylindrical shape and a rectangular tube shape corresponding to the connecting bar 9 and the rectangular tube material 55 are illustrated. However, it is sufficient that the vertical member has a shape that allows the drop bar 23 to be inserted in a vertically movable manner, and it may be provided at any position on the gate. The operation body 24 may have a cross-sectional shape different from that of the vertical member, in addition to a cross-sectional shape substantially similar to that of the vertical member, as long as the operation body 24 can be fitted to the outer periphery of the vertical member. Further, the operation body 24 may be other than a cylinder, for example, a cylinder.

  The holding means 25 is a linear engagement type having an engagement pin 27, an engagement tool 29, etc., a magnet type having a permanent magnet 49, and a rotation for rotating the operating body 24 to engage the connection pin 39 with the engagement recess 53. In addition to the engagement type, anything that can hold the drop bar 23 in the raised position may be used.

The 1st Example of this invention is shown, (A) is a top view of an expansion-contraction gate, (B) is the front view, (C) is the side view. (A) is an enlarged plan view of the principal part of the door body, and (B) is a front view thereof. (A) is sectional drawing of the raising state of the dropping rod, (B) is sectional drawing of the falling state of the dropping rod. It is an expanded sectional view of the holding means. It is side surface sectional drawing of the holding means. It is the bb sectional view taken on the line of FIG. FIG. 5 is a sectional view taken along the line cc of FIG. 4. FIG. 6 is a sectional view taken along line dd in FIG. 4. It is the ee sectional view taken on the line of FIG. It is sectional drawing of the holding means which shows 2nd Example of this invention. FIG. It is sectional drawing of the holding means which shows 3rd Example of this invention. It is sectional drawing of the holding means which shows 4th Example of this invention. FIG. It is a plane sectional view of a holding means showing a fifth embodiment of the present invention.

Explanation of symbols

9 Connecting bars (vertical members)
DESCRIPTION OF SYMBOLS 23 Drop rod 24 Operation body 25 Holding means 27 Engagement pin 28 Pivot 29 Engagement tool 30 Spring 31 Engagement part 35,36 Guide part 38 Guide groove 39 Connection pin 55 Square cylinder material (vertical member)

Claims (6)

A drop bar (23) provided in the vertical member (9, 55) so as to be movable up and down, and a drop rod (23) fitted on the outer periphery of the vertical member (9, 55) so as to be movable up and down, and A cylindrical operation body (24) that operates in a direction, and holding means (25) that holds the drop bar (23) in the raised position , wherein the vertical members (9, 55) are the operation body (24). And a guide groove (38) for guiding a connecting pin (39) that connects the holding means (25), and the operating body (24) moves the guide groove (38) when the drop bar (23) moves up and down. A drop rod device for a gate, characterized in that it has a length covering the The gate drop according to claim 1, wherein the operating body (24) is slidable on the longitudinal member (9, 55) via a sliding body (40, 41) having wear resistance. Bar equipment.   The gate rod dropping device according to claim 1 or 2, wherein the vertical members (9, 55) and the operation body (24) are cylindrical.   The holding means (25) includes an engaging pin (27) provided on one of the vertical member (9, 55) and the dropping rod (23), and the engaging pin (27 on the other side). ) And a spring (30) for biasing the engagement tool (29) in the engagement direction. The tool (29) guides the engaging tool (29) to the engaging pin (27) in the engaging / disengaging direction on both the upper and lower sides of the engaging part (31) when the dropping bar (23) moves up and down. The gate dropping rod device according to claim 1, further comprising a guide portion (35, 36).   A stopper (32) is provided for holding the engagement tool (29) in such a posture that the engagement portion (31) can be engaged with the engagement pin (27) when the drop bar (23) is raised. The gate dropping device according to claim 4.   The vertical pin (9, 55) is provided with the engagement pin (27) above the drop bar (23) in the raised position, and the lower part of the engagement tool (29) is placed in the drop bar (23). The spring (30) is provided in the drop bar (23) below the pivot (28) by being pivotally attached by a pivot (28) substantially parallel to the engagement pin (27). The gate dropping device according to claim 4 or 5.

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