JPH03137309A - Locking device for pillar of fence - Google Patents

Abstract

PURPOSE:To improve safety by fastening a lock through rotational movement of a hook piece and fitting a first magnet repelling a second magnet into the engaging hole of a hook piece so as not to move a pillar rotationally and vertically, and releasing a lock through rotationally moving the hook piece with a tool having a third magnet. CONSTITUTION:A hook piece 7 is rotationally moved to a locking position, the upper end of a magnet G1 pushed into rotational moving plane of the hook piece 7 by repelling a second magnet G2 is fitted into the engaging hole 13 of the hook piece 7, not to move a pillar B rotationally and vertically, and a lock is fastened. Nextly, when the hook piece 7 is on the locking position, an operating tool having a third magnet is engaged with the pivotally fitted shaft 8 of the hook piece 7, the magnet G1 is pushed down against the repelling force between the first magnet G1 and the second magnet G2 by the strong magnetic force of the third magnet G3, and the hook piece 7 is rotationally movably released to release the lock. Hereby, safety control can be effectively performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a lower part of a column for a shelf used, for example, as a shelf for a car stop, and an upper surface part of an outer cylinder embedded so as to fit the lower part of the column. The present invention relates to a column locking device for a shelf column, which is provided with a locking mechanism for locking the column between the column and the column.

Conventional technology Conventionally, this type of shelf support has two types: one is a portable type in which a removable support is fitted from above to a short outer cylinder that is buried relatively shallowly, and the other is a portable type in which a removable support is fitted from above to a short outer cylinder that is buried relatively shallowly. There is a calculative type that is equipped with a correspondingly long outer cylinder, and a column is fitted into the outer cylinder so that it can be raised and lowered.

The former is equipped with a locking mechanism that uses a padlock-like lock to lock the space between the l:iri part of the outer cylinder that protrudes from the ground and the lower part of the support that stands on the ground. Also, for the latter, for example, it is set in one piece from the 1980s,
The challenge was to develop a post locking device that would not be inconvenient to use and that would not allow the user to see how to open the lock from the front.

Means for Solving the Problems Therefore, the present invention provides an outer cylinder which is buried with a -1-plane part having an open section exposed above the ground surface G, and a lower part of which is fitted into the outer cylinder in a state of use. The above-mentioned hook piece is provided in the above-mentioned surface part as a locking mechanism so as to be rotatable from the outside, and is rotatable between a locking position and an avoidance position. A column locking device for a shelf column, which is provided at a lower part of the column and has a hook that engages with the hook in the locked position, which prevents the hook from escaping upward when the hook is in the avoidance position. A first magnet is provided in the upper surface portion, and the surfaces facing the magnets are made to have the same polarity under the first magnet, so that the first magnet is constantly controlled by the rotation of the hook. As shown in Japanese Patent Application No. 59821, a hook J1 is provided in the upper surface of the outer cylinder to enable rotation operation from the outside and rotate between the locking position and the avoidance position. There is a lock plate +i4 (=J sunken) which is provided with a latch part that engages with the above-mentioned fishing piece in the locked position, and when both are engaged, the column cannot be rotated or raised or lowered.

Problems to be Solved by the Invention The former portable type, in which the lower part of the column is locked with a lock, has the disadvantage that the lock is exposed above the ground surface when the shelf is in use, detracting from its aesthetic appearance, and the lock is locked together with the column when the shelf is not in use. need to be carried in and out, which is inconvenient for use. On the other hand, when the side of the lock is set integrally with the fence post, there is a recess for rotation operation provided at the upper end of the pivot shaft of the fishing piece, which is exposed on the upper surface of the outer cylinder. If you insert a 1-inch lever or the edge of a ml-in into the lock, there is a risk that it will be unlocked by everyone. To this end, a second magnet is provided that repels the shelf support inward so as to push it inward, while the fishing piece is engaged so that the upper end of the first magnet is received by the LJ in the locked position. A hole is provided, and the L is connected to the first magnet through the engagement hole.
In order to release the engagement, a third magnet, which is free in the +5Q row and has a larger magnetic force than the repulsive force between the first magnet and the second magnet, is used as the key of the locking mechanism. A column locking device for a shelf column is provided.

Function: As described above, the locking mechanism according to the present invention is integrated with the shelf support. Although it is possible to know how to rotate the fishing piece that locks the column from the part protruding from the top surface of the outer cylinder, it is difficult to know how to rotate the fishing piece to the locked position.
Then, the first magnet, which is repelled by the second and third stones, and the engagement hole provided in the hook J~ engage in the upper surface part, and the pillar rotates! Lock the A-dori door so that it is impossible to lock it. This hi!
! The locked state cannot be seen from the outside. Therefore, the third lever can be opened by a person who can use a stone as a key, and the shelf support is prevented from being accidentally pulled out or lowered. Further, the first magnet that prevents the rotation of the hook Jt like the second part is prevented from intervening in the rotation surface by the back surface of the hook J1 when the hook Jt is in the avoidance position, It automatically engages upon rotation to the locked position, requiring the use of a third magnet only during the opening operation.

Therefore, the operation for locking the column only requires the use of a tool such as a screwdriver.

In the present invention, the operating structure for rotating the hook piece is such that the outer end of the pivot shaft of the hook piece that rotatably projects from the inner surface of the outer cylinder is engaged with a tool such as a screwdriver. If the tool is equipped with a concave part and a convex part that engages with the four parts, the third off part is the key.
This is a locking mechanism in which an I stone and a single piece for rotating the hook piece are always connected to the upper surface I of A. 5 is the upper surface part 1
A mounting recess 7 is formed on the back surface of the metal plate 6 covering the metal plate 6 by opening it to the J section 2 side, and the mounting recess 7 is fitted into the mounting recess 5 and is freely rotated by the pivot shaft 8. The fan-shaped hook 7 is placed in the avoidance position shown in Fig. 1.2 and in the avoidance position shown in Fig. 3.4.
The hook piece 9 is displaced to the locked position shown in the figure, and G1 is a vertical hole drilled in the mounting portion 5 so as to be closed by the back side when the hook 147 is in the avoidance position. The first magnet G2 is fitted into the guide rod 10 in a downwardly movable manner.
This is a second magnet connected to the restoring spring 11 and supported at the bottom of the vertical hole 9 so as to be able to move up and down within an appropriate range. The second magnet G2 and the first magnet G1 have surfaces facing in the j=I direction with the same polarity, and their repulsive force causes the first Fi
The t-force G1 is always biased in the upward direction. 12, when the hook piece 7 is in the locked position, the fan-shaped opening 2 (example) protruding from the opened mounting recess 5 to the opening 2 (jjl) is carried, preventing situations such as losing the key and making it convenient to use. Further, there is an advantage that the lock can be opened smoothly without making a mistake in the polarity of the third magnet.

Embodiment The embodiment shown in the drawings is an example in which the present invention is applied to a shelf support for a 57-piece rack, and the present invention will be described below with respect to this embodiment.

In the figure, A is a rectangular outer cylinder with a circular flange-like upper surface part 1 of an appropriate size of 1 yen integrally provided on the upper part of the rectangular cylinder, and B is an outer cylinder with the upper surface part I exposed on the ground surface and buried. It is a cylindrical support that fits freely into A, and when the shelf is in use, this support I3 stands up from the opening 1-1 part 2 provided in the upper surface part l, and the diameter of the lower part B' The upright state is supported by hooking the bottle 3 protruding in the direction on the hooking steps 4 integrally formed on both sides of the upper part of the outer cylinder .DELTA.

R is the lower 13° of this 4-kidney type strut B and the outer cylinder hook part 9.
This is a latching hole formed in the shape of a horizontally long hole in the lower part B of the column B so as to engage with the latching hole 1.
Rotation is locked by a hook piece 7 that engages with 2. 13 is a vertical hole 9 when the hook piece 7 rotates from the avoidance position to the locking position.
The first magnet G is located at - and is released from restraint.
This is an engagement hole provided in the hook piece 7 so as to automatically receive the upper end of the hook. The hook piece 7 is connected to the first O) magnet and the engagement hole 1.
3, the magnet G1 interferes with the rotating surface, thereby preventing reverse rotation and rotation to the avoidance position.

Reference numeral 4 designates four parts provided on the upper end surface of the pivot shaft 8 so as to be engaged with a tool 21' such as a screwdriver. The locking mechanism R consisting of the hook j17 and the first to third magnets G1, 2, 3, etc. is covered with the gold fi temporary 6 of the upper surface part I except for the upper end surface of the pivot shaft 8 which has the four parts 14. and their structure is hidden from the outside.

As shown in Figure 5, C has a striped body on the back of the tip.
The hook piece 7 is provided with a protrusion 15 that engages with the recess 14.
G3 is an operating tool that can be rotated from the outside, and is provided with a third key provided on the back surface of the tip of the operating tool 15 in parallel with the convex portion 15 and used as a key for the side R of the lock. It's a magnet. This third magnet G3 is similar to the first magnet G
It has a magnetic force larger than the repulsive force between Gl and the second magnet G2, and the back surface facing the first magnetic force Gl has the same polarity, and is formed on the body of the operating tool C, When the convex portion 15 of the tool C is engaged with the four spiral portions 14 of the driver, the metal plate 6 hits 1! ! It is provided so as to be located directly above the engagement hole 13 of the hook piece 7 which is covered. Therefore, if the operating tool C is engaged with the pivot shaft 8 of the hook 7 when the hook 7 is in the locked position shown in Fig. 1.2, it will interfere with the rotating surface of the hook 7. According to the pillar locking device of the present invention, which is constructed as described above and operates as described above, the intervening first magnet G1 locks the pillar due to the strong magnetic force of the third magnet G3. The recess at the upper end of the pivot shaft, which is the rotation operation means for rotating the hook piece, is located on the top surface of the outer cylinder, but as shown in the series, it repels the second magnet. The pillar is locked so that it cannot be opened by the interfering hook piece of the first magnet, and the locking mechanism and unlocking operation method cannot be known from the front side. Therefore, the prop cannot be lowered or removed by anyone other than the person carrying the third magnet, which helps ensure proper use of the shelf prop and is extremely useful for safe management of usage conditions. There is an effect that

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway plan view of the column in the stored state, FIG. 2 is a partially cutaway plan view of the column in the stored state, and FIG. 3 is a partially cutaway plan view of the column in the locked state. Fig. 4 is a cutaway plan view of the section shown in Fig. 4, which is pushed down against the repulsive force between it and the second magnet G2, retreats to a position where it does not interfere, and thereby opens the hook piece 7 so as to be rotatable. do. Therefore, by rotating the operating tool C in the counterclockwise direction in FIG. . In the figure, reference numeral 16 denotes a click spring that engages with a protrusion I7 formed on the other end of the hook J17 within the mounting portion 5 to correctly position the hook piece 7 in the avoidance position and the locking position. It should be noted that the present invention is not limited to the illustrated shelf support of yI camp 2, but can also be applied to a portable shelf support. Further, the shapes of the hook piece 7 and the latch hole 12 provided on the support 4j side that constitute the locking mechanism R are not limited to the embodiment shown, but can be modified as desired in accordance with the gist of the present invention. Needless to say. FIG. 5, which is a partially cutaway elevational view of Effect 2 of the invention, is an exploded perspective view of the main part of the lock mechanism in a locked state and a third magnet integrally formed with the operating tool for rotational operation. A...Outer cylinder, 1...Top surface, 2...Opening, B...Strut, Bo...Bottom, 3...Pin, 4...Latch step, 1?・
・Lock mechanism, 5. Mounting recess, 6. Metal plate, 7. Hook piece,
7'...Latching part, 8...Pivot shaft, 9...1 hole, I...
・First magnet, G2... Second magnet, Hl... Guy 1 rod, 11... Restoration spring, 12... Latching hole, 13... Engagement hole, 14... Recess, C... Operation Tool, I5... convex part, 3
...Third magnet, 16.Click spring, 17.Protrusion. ltl! n people stock company ne(yu;-A n(outside 2 people J 〃・-engagement 3L σ・・′I rice cultivation 1 odor

Claims (2)

[Claims] (1) An outer cylinder A that is buried with the upper surface 1 having an opening 2 exposed on the ground surface, and a column B that stands on the ground in a state of use by fitting a lower part B' to the outer cylinder A. , lock mechanism R
A hook piece 7 is provided in the upper surface part 1 so as to be rotatable from the outside and rotates between a locking position and an avoidance position. Hook piece 7
In the column locking device for a shelf column, the hook piece 7 is prevented from escaping upward when the hook piece 7 is in the avoidance position.
A magnet G1 is provided in the upper surface part 1, and this first magnet G
A second magnet G2 is provided below the hook 7, with surfaces facing the magnet G1 having the same polarity and repelling the first magnet G1 so as to constantly push it into the rotating plane of the hook piece 7. The piece 7 is provided with an engagement hole 13 that receives the upper end of the first magnet G1 in the locked position.
In order to release the engagement between the first magnet G1 and the first magnet G1, a third magnet G1, which is freely portable and has a magnetic force larger than the repulsive force between the first magnet G1 and the second magnet G2, is used. A column locking device for a shelf column, characterized in that a magnet G3 is provided as a key of the locking mechanism R. (2) As an operating structure for rotating the hook piece 7, a tool such as a screwdriver is attached to the outer end of the pivot shaft 8 of the hook piece 7 that rotatably projects onto the upper surface 1 of the outer cylinder A. Claim 1, characterized in that said third magnet G3 is integrally provided in an operating tool C which is provided with a concave part 14 to be engaged with and a convex part 15 which is engaged with this concave part 14. The column locking device for the shelf column described in Section 1.