JP2007291634A - Coming-in/out type fence pole and locking device for extending and contracting member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily fix or release a protruding position of a long body such as a pole body by simple work for lifting and lowering the long body such as the pole body. <P>SOLUTION: This coming-in/out type fence pole is provided with a long member 6 on a fixing side provided with an outer cylinder 2 buried into the ground 5, the pole body 3 stored in the outer cylinder so as to elevate and lower freely, and a stop cam 41 for regulating the pole body so as to release its lowering freely at the predetermined protruding position. A position of the stop cam can be changed to a locking position and a locking release position by elevating and lowering the pole body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is, for example, housed in an outer cylinder buried in the ground, raised and lowered to the ground as necessary, and standing and falling fence columns configured to regulate the passage of vehicles and people, The present invention also relates to a locking device for a telescopic member that expands and contracts a long body that can be employed in a retractable fence post or the like.

  A conventional underground retaining column is composed of an outer cylinder (pipe) embedded in the ground and an inner pipe that is detachably held in the outer pipe. It is fixed in the pulled-out state, and when not in use, the inner pipe is dropped into the outer pipe and stored (immersed). A lock pin that protrudes from the outer peripheral surface of the inner pipe is provided near the lower end of the inner pipe.

On the other hand, a pipe guide (guide bush) is provided inside the upper end of the outer pipe, and an engagement groove is formed in the guide bush. When the inner pipe is pulled up and rotated, the lock pin is engaged with the engagement groove, and the standing state of the inner pipe is maintained (for example, see Patent Document 1).
JP 2001-248121 A

  This kind of haunting fence column is rarely used alone, and many are often used simultaneously in parking lots such as public facilities and shopping centers. Furthermore, in view of the fact that many of the workers who manage and operate the haunting fence pillars at the above facilities are elderly people, the work of raising and lowering a large number of pillars can be performed easily and quickly. Is desirable.

  However, since the conventional vehicle stop fence post is configured to engage or release the lock pin protruding from the outer peripheral surface of the inner pipe with the engagement groove of the guide bush, the work can be smoothly performed and the outer pipe However, it was also necessary to rotate the inner pipe.

  It is an object of the present invention to be able to easily fix or release the protruding position of a long body such as a column by a simple and simple operation of raising and lowering the column, for example. .

  The retractable fence post according to the present invention is made to solve the above-mentioned problem, and is housed in a fixed-length long member having an outer cylinder buried in the ground and freely movable up and down in the outer cylinder. And a locking means for releasably restricting the column body from descending at a predetermined protruding position, the locking means including a locking position for fixing the column body at the protruding position, and an immersion of the column body. The stop cam is rotatably supported by the column via a support shaft so that the stop cam can be rotated at the locked position. In addition, the long member is rotated to the side where the stop cam of the lock position is released or is in the release position by raising the column body from the protruding position. To rotate the stop cam to the locking side, In that the abutting camming portions are provided on the stop cam.

  The stop cam can be changed between the lock position and the release position by a simple and simple operation of raising and lowering the column body.

  The elongated member includes an inner support provided inside and along the cylindrical column, and the engagement member and the cam operation unit are provided on the inner support. The joint portion is composed of a long guide member provided in the longitudinal direction of the outer cylinder, and the guide member positions the stop cam rotated by the cam operating portion at the release position, and also stops at the release position. It is preferable that a sliding surface that slides with the sliding surface of the cam is provided.

  The expansion / contraction member locking device of the present invention includes a first long member, a second long member that is extendable / contractible with respect to the first long member, and the second long member at a predetermined protruding position. Locking means for releasably restricting movement in the contracting direction, wherein the locking means locks the second elongate member at the protruding position, and houses the second elongate member. A stop cam is rotatably supported by the second elongate member via a support shaft so that the position can be changed to an allowable release position. The first elongate member has a stop cam at a locked position. An engaging portion that is non-rotatably engaged is provided, and the long member is rotated to a side where the stop cam at the lock position is released by projecting the column body from the projecting position, or Rotate the stop cam in the release position to the locking side So as, in the cam operating portion abutting against the stop cam is provided.

  The present invention can easily fix or release the protruding position of a long body such as a column body by a simple and simple operation of raising and lowering the column body of a retractable fence column, for example. .

  Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show an embodiment of a retractable fence post according to an embodiment of the present invention.

  FIG. 3 is a schematic diagram showing the overall configuration of the retractable fence post 1. The retractable fence column 1 includes an outer cylinder 2 embedded in the underground 5, a column body 3 that protrudes and retracts in the vertical direction with respect to the outer cylinder 2, and the column body 3 can be released at a predetermined protruding position. And locking means 4 to be fixed.

  The outer cylinder 2 has a hollow rectangular tube shape, for example, and a lower end portion thereof is closed by an outer cylinder bottom plate 21. An inner support 22 is provided inside the outer cylinder 2. As shown in FIGS. 1 and 2, the inner support 22 includes a pair of support plates 23 and 24 each having a U-shaped cross-section, and bolts 25 on the upper surfaces of both support plates 23 and 24. And a fixed top plate 26. The outer cylinder 2 and the inner support 22 constitute the first long member 6 on the fixed side.

  Each support plate 23, 24 includes a base portion 23a, 24a and a pair of side pieces 23b, 23b, 24b, 24b extending from both ends of the base portion 23a, 24a so as to face each other. A pair of elongate guide members 27, 27 are provided along the support plate 23 inside the both corners 23 c of the one support plate 23.

  Further, a pair of long guide members 28 and 28 are provided along the support plate 24 inside the both corners 24 c of the other support plate 24, respectively. Here, the upper ends of the one guide members 27 and 27 are higher (longer) than the upper ends of the other guide members 28 and 28. A space 10 is provided between the upper ends of the guide members 27 and 28 and the top plate 26. A parallel space H is provided between the guide members 27 and 28 in the vertical direction. Further, above the top plate 26 and the short guide member 28 side (the guide member 28 side from the center line Y of the interval H shown in FIG. 1B), a cam operation portion (cam operation) constituting a cam fixing portion is provided. Member) 29 protrudes downward. An annular member 11 that projects outward is provided at the upper end of the outer cylinder 2.

  The column 3 has a rectangular tube shape with a smaller diameter than the outer cylinder 2, and is inserted between the outer cylinder 2 and the inner support 22. The length of the column 3 is substantially the same as that of the outer cylinder 2, and the upper end of the column 3 is substantially flush with the upper end of the outer cylinder 2 in the storage position where the column 3 is lowered.

  The locking means 4 is provided at the lower part of the column 3. That is, the locking means 4 includes a support shaft 33 having both ends fixed between the opposing side walls 3a and 3b of the column 3 by bolts 34, and a pair of stop cams 41 and 41 rotatably supported by the support shaft 33. It consists of and. Each stop cam 41 is provided at a position facing the guide members 26 and 27. A collar 35 is fitted on the support shaft 33, and the collar 35 positions each stop cam 41 in the axial direction of the support shaft 33.

  The stop cam 41 is point-symmetric about the center of rotation O on the center line Y and has a line-symmetric shape with respect to the center line Y. Specifically, as shown in FIG. 1B, the width W1 of the stop cam 41 in the direction of the center line Y (the vertical direction in the figure) is the width in the direction orthogonal to the center line Y (the horizontal direction in the figure). It is set longer than the length W2. Further, the width length W1 of the cam 4 is set to be larger than the interval H between the guide members 27 and 28, and the width length W2 of the stop cam 41 is set slightly smaller than the interval H.

  On the short side (width W2) side surface of the stop cam 41, inclined surfaces 43a and 43b that are recessed in a V shape toward the rotation center O are formed. Further, the long side surface of the stop cam 41 is a smooth sliding surface 44, 44. And the stop cam 41 has the four front-end | tip parts 41a-41b.

  Therefore, as indicated by the phantom line in FIG. 2B, the stop cam 41 has the inclined surface 43 engaged with the upper corner portion (engagement portion) of the guide member 27 from above at the protruding position of the column 3. In addition, the sliding surface as shown by the solid line in the lock position where rotation is restricted by the tip 41b on the lower left side coming into contact with the sliding surface 27a of the guide member 27 and the storage position of the column 3 44 and 44 are located in the space | interval H between both the guide members 27 and 28, and both the guide members 27 and 28 can be changed into the releasing position which can be slid.

  A handle portion 45 is provided on the upper portion of the column body 3 via an attachment member 46 so as to be freely inserted and removed. A long support plate 47 is provided on the lower surface of the mounting member 46, and the support shaft 33 is inserted into the lower portion of the support plate 47.

  In the retractable fence column 1 having the above-described configuration, when the column body 3 is raised through the handle portion 45, the sliding surfaces 44 and 44 on both sides of the stop cam 41 are the sliding surfaces of the guide members 27 and 28, respectively. In order to slide 27a and 28a and maintain the release position, the column 3 moves smoothly upward (see FIG. 4A).

  When the upper right end 41a of the stop cam 41 that has risen together with the column 3 and reached the space 10 comes into contact with the cam operating portion 29 from below (see FIG. 4B), the stop cam 41 is moved in the direction of arrow A ( It rotates in the clockwise direction in the figure. And since the inclined surface 43a of the stop cam 41 contact | abuts to the side surface of the cam action | operation part 29, while the rotation of the stop cam 41 is blocked | prevented, the raise of the column 3 is controlled.

  Although the column body 3 tends to move downward under its own weight, the stop cam 41 is rotated by a predetermined angle toward the locking side relative to the release position. While engaging with the upper corner from above, the lower left end 41 b of the stop cam 41 is pressed against the sliding surface 27 a of the guide member 27. For this reason, the stop cam 41 cannot be rotated, and the column 3 maintains the protruding position (see FIG. 4C).

  Further, when the column 3 at the protruding position is slightly raised, the upper right end 41d of the stop cam 41 reaching the space 10 comes into contact with the lower end of the cam operating portion 29 (see FIG. 5A). The stop cam 41 further rotates from the lock position in the direction of arrow A (the release side) (see FIG. 5B). When the column 3 is lowered, the lower left end 41b of the stop cam 41 comes into contact with the upper corner of the guide member 27, so that the stop cam 41 rotates (see FIG. 5C).

  At this time, since the guide member 28 is lower than the guide member 27, the guide member 28 does not hinder the rotation of the stop cam 41. The stop cam 41 has sliding surfaces 44, 44, The guide members 27 and 28 are rotated along the sliding surfaces 27a and 28a to be in a release position (see FIG. 5D). As a result, the sliding surfaces 44 and 44 on both sides of the stop cam 41 can lower the column 3 to the storage position at the lowest position while sliding on the sliding surfaces 27a and 28a.

  Further, by performing the operation of raising or lowering the column 3, the stop cam 41 rotates in the same direction so as to change the position between the lock position and the release position.

  As a result, the projecting position of the column can be easily fixed or released without rotating the column by a simple and simple operation of raising and lowering the column of the retractable fence column of the present invention. can do. For example, even when a large number of parking lots are used in a parking lot such as a public facility or a shopping center, the operation can be performed easily and quickly by raising or lowering a large number of pillars.

  In addition, since the column body is not rotated and stopped, the structural members such as the column body and the outer cylinder are not limited to a circular shape, and may be any shape such as a rectangular shape or other polygonal shapes as in the present embodiment. It can be shaped.

  Further, in the conventional retractable fence column, a guide bush is fitted to the upper end of the outer cylinder, and a guide cover through which the column body is inserted is covered on the upper surface of the guide bush. The guide cover is fastened and fixed to a flange member provided at the upper end of the outer cylinder together with a flange provided on the guide bush by a screw attached from above.

  For this reason, the guide cover which covers the collar part of the guide bush is exposed from the ground around the conventional column body, and the visible portion around the column body becomes large.

  In the present embodiment, since the locking mechanism such as the stop cam 41 is provided in the outer cylinder and the column body, a guide bush for fixing the column body is not necessary, and the outer periphery of the upper end of the outer cylinder has a thickness of, for example, about 3 mm. Since the annular member 11 is present, the visible portion can be reduced.

  Moreover, since the structure is such that the stop cam 41 is engaged or released by the rotation of the stop cam 41, the structure is simplified and the overall weight can be reduced.

  The present invention is not limited to the retractable fence post, but can be applied to other telescopic columns. For example, when the 1st elongate member 6 and the 2nd elongate member are comprised from a board | plate material, a stop cam can be attached to a board | plate material and the inner side support body 22 does not necessarily need to be provided.

  Further, the extending / contracting direction of the support is not limited to the vertical direction, and any direction such as a horizontal direction or an oblique direction is possible. Moreover, the first elongate member 6 and the second elongate member may be configured to move relative to each other.

The principal part of the retractable fence pillar which concerns on one Embodiment of this invention is shown, (a) is AA arrow sectional drawing of (b), (b) is a longitudinal cross-sectional view. The whole state in which the column body is accommodated is shown, (a) is a plan view, and (b) is a sectional view. It is a cross-sectional schematic image which shows the use condition of the retractable fence pillar. (A)-(c) is sectional drawing which shows the state which raised and locked the column, respectively. (A)-(d) is sectional drawing which respectively shows the state which descends from the state which locked the column.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Intrusion-type fence pillar 2 Outer cylinder 3 Column 4 Locking means 5 Underground 6 Long member (1st long member)
22 inner side support body 27 engaging part (guide member)
27a Sliding surface 28 Guide member 28a Sliding surface 29 Cam operating member (cam operating portion)
33 Support shaft 41 Stop cam 44 Sliding surface

Claims (3)

A long member on the fixed side having an outer cylinder buried in the ground, a column body that is housed in the outer cylinder so as to be able to be moved up and down, and a lowering of the column body at a predetermined protruding position. In the retractable fence post with the locking means to regulate,
The locking means is a stop cam that is rotatably supported by the column via a support shaft so that the lock can be changed between a lock position for fixing the column at the protruding position and a release position that allows the column to be immersed. The long member is provided with an engaging portion that engages the stop cam so as not to rotate at the lock position, and the long member raises the column body from the protruding position. Therefore, a cam operating part that contacts the stop cam is provided so as to rotate the stop cam at the lock position to the release side or to rotate the stop cam at the release position to the lock side. A haunting fence post.   The elongate member includes an inner support provided inside the cylindrical column and along the column, and the inner support is provided with the engagement portion and the cam operation unit, The engaging portion is composed of a long guide member provided in the longitudinal direction of the outer cylinder, and the guide member positions the stop cam rotated by the cam operating portion at the release position and is at the release position. The retractable fence column according to claim 1, wherein a sliding surface sliding with a sliding surface of the stop cam is provided. The first elongate member, the second elongate member provided to be stretchable with respect to the first elongate member, and the movement of the second elongate member in a contracting direction at a predetermined protruding position are released. In a locking device for a telescopic member provided with a locking means for freely restricting,
The locking means is configured to change the position of the second elongate member via a support shaft so that the second elongate member can be changed to a lock position for fixing the second elongate member at a protruding position and a release position for allowing the second elongate member to be stored. It comprises a stop cam that is rotatably supported by a long member, and the first long member is provided with an engaging portion that engages the stop cam in a non-rotatable position at the lock position. To prevent the stop cam from rotating from the protruding position, rotate the stop cam at the locked position to the unlocking side, or rotate the stop cam at the releasing position to the locking side. A telescopic member locking device, characterized in that a cam operating portion is provided.

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