JP3869421B2 - Display board attachment - Google Patents

Description

      The present invention relates to a display board mounting tool, and more particularly to a display board mounting body for mounting a display board to a guardrail or the like on a road. The present application relates to the invention of Japanese Patent Application No. 2004-025070.

      Conventionally, as this type of display plate mounting tool, one disclosed in Patent Document 1 below is known. Referring to FIG. 1 of the same document, a nut 54e of the lower arm 54 is tightened to hold an attachment target (guard rail) G between the upper arm 20 and the lower arm 54. Since the screw rod 12 is a cylinder and the sliding portion 54a surrounding the cylinder is also cylindrical, backlash tends to occur between them. As a result, the lower arm 54 is easy to rotate and loose. In the worst case, the display board mounting tool may come off from the guard rail, and the display board may fall on the road, resulting in a dangerous state for a running car.

Japanese Patent No. 3071980

      The problem with the display plate mounting tool disclosed in the above-mentioned Patent Document 1 is that means for driving the lower arm is arranged using the legs attached to the display plate support. That is, a male screw is cut at the lower end of the leg, and a nut is screwed onto the screw to push up the lower arm. The sliding part and the means for pushing up the lower arm are arranged at the same place. For this reason, the lower arm is rotatable unlike the upper arm. Therefore, it is easy to loosen.

      In view of the drawbacks of the prior art described above, an object of the present invention is to provide a display plate attachment that can securely hold an attachment target (guard rail) between upper and lower arms over a long period of time.

In order to solve the above-mentioned problems, the present invention according to claim 1 (see FIG. 1) sandwiches a mounting target (guard rail) and a leg portion on which one of a pair of arms slides while supporting a display plate mounting portion. The distance adjusting means for adjusting (narrowing) the distance between the pair of arms is divided. Thus, one of the upper and lower arms can slide the leg when attached, and the interval between the upper and lower arms can be reduced by the interval adjusting means. Thus, the upper and lower arms are constrained at three positions, that is, the leg portion, the interval adjusting means, and the attachment target (guard rail). The upper and lower arms are difficult to loosen. As a result, the display plate mounting tool does not come off the guard rail.

According to the second aspect of the present invention (see FIG. 4), as in the case of the first aspect of the invention, in addition to separating the leg portion and the distance adjusting means, both the pair of arms are attached to the leg. (In the invention described in claim 1, one arm is fixed to the leg), and the arm is fixed to the leg in order to fix one arm at the time of attachment. The engaging means is provided. Thus, there is an advantage that the height of the display board from the guard rail can be adjusted.

The present invention described in claim 3 (see FIG. 1) specifically specifies the distance adjusting means of the present invention described in claims 1 and 2. According to a third aspect of the present invention, the distance adjusting means includes a hole formed in one arm, a bolt attached to the other arm and having a male screw cut at least at a tip thereof, and a male screw cut in the bolt. It is characterized by comprising a nut in which a female screw to be screwed is cut.

The present invention described in claim 4 (see FIGS. 2 and 3) specifically specifies the distance adjusting means of the present invention described in claims 1 and 2. The distance adjusting means according to claim 4 includes a hole formed in each arm of a pair of arms, a bolt having a male screw cut at least at a tip thereof, and a female screwed into the male screw cut in the bolt. It is characterized by comprising a threaded nut.

The present invention according to claim 5 (see FIG. 4) specifically specifies the fixed engagement means of the invention according to claim 2. According to a fifth aspect of the present invention, the fixed engagement means is configured to allow the pin to pass through a through hole formed in both the arm and the leg (a plurality of holes are formed in at least one). The distance between the guardrail and the display board can be adjusted by selecting the through-holes opened in both and passing the pins through the holes. If a commercially available pin (a combination of a bolt and a nut) is employed, the fixed engagement means can be configured simply by drilling holes in the legs and arms.

      The present invention as set forth in claim 6 specifically specifies the fixed engagement means of the invention according to claim 2. The fixed engagement means of claim 6 is to form a plurality of through holes in one of the arm and the leg and to form a pin engaging with the through hole in the other. In this configuration, the pin is fixed to one side, so there is no risk of loss.

In FIG. 1, the display board attaching part 10 is comprised from the horizontal member 11 and the short vertical members 12 and 12 attached to the both ends. As a result, the display board mounting portion 10 has an H-shaped appearance as a whole. The horizontal member 11 is formed from a rectangular cylindrical body having a side of about 5 cm. However, the horizontal member 11 may be any of a column, a cylinder, and a polygonal column. The legs of the display board (not shown) are inserted into the vertical members 12 and 12 and fixed. The interval between the vertical members 12 and 12 corresponds to the width of the legs of the display board. It is also possible to add a function capable of adjusting the distance between the vertical members 12 and 12 in accordance with the width of the leg of the display board. However, it is also possible to prepare another type of display board mounting portion 10 having different intervals between the vertical members 12 and 12 and match the display boards with different leg intervals.

      The display board mounting part 10 is fixed to the bolt 13 protruding from the top of the leg part 20 via a nut 14. In FIG. 1, the surface including the horizontal member 11 and the vertical members 12 and 12 and the surface including the fixed arm 30 and the movable arm 40 are parallel to each other, but the legs 20 and 20 are arranged so that these surfaces are twisted. It is possible to devise a connection with the display panel mounting portion 10. In the state shown in FIG. 1, the display board is orthogonal to the guardrail (road). However, as described above, the display board can be directed inward with respect to the road by changing the coupling angle between the display board mounting portion 10 and the leg portion 20.

      The structure which changes the joint angle of the display board attaching part 10 and the leg part 20 makes several holes along the periphery of the disc 21 of the top part of the leg part 20. As shown in FIG. For example, eight holes are made at an equal angle. On the other hand, a pin is implanted in the position corresponding to the hole in the display board mounting part 10. By inserting and assembling the pins planted in the display plate mounting portion 10 into the holes formed in the disc 21, the mounting direction (angle) of the display plate with respect to the road can be changed every 45 degrees.

      The leg portion 20 is formed from a rectangular cylindrical body having a side of about 5 cm and has a length of about 1 m. The leg portion 20 may also be a column, cylinder, or polygonal column. The length of the leg part 20 is not limited to 1 m. The length is such that the attachment object 60 (FIG. 6), which is a guard rail, can be sandwiched between the fixed arm 30 and the movable arm 40.

      The fixed arm 30 includes a beam 31 and a gripping member 33. A beam 31 is fixed to the leg portion 20 by welding at a position where the distance from the display plate mounting portion 10 is about 15 cm. The distance between the display board mounting part 10 and the beam 31 is also arbitrary. A method of changing the distance between them will be described later with reference to FIG. The beam 31 is formed from a rectangular cylindrical body having a side of about 4 cm, and its length is about 15 cm. The beam 31 may be any of a cylinder, a cylinder, and a polygonal column. An inverted L-shaped holding member 33 (preferably the angle formed by the two sides is 90 degrees or less) is attached to the tip of the beam 31 by welding. A hole 62 is formed approximately in the middle of the beam 31.

      The movable arm 40 includes a beam 41, a bolt 64 attached to the beam 41, a gripping member 43, and a cylindrical body 44. A gripping member 43 is attached to one end of the beam 41 by welding. The beam 41 is formed from a rectangular cylindrical body having a side of about 4 cm, and its length is about 15 cm. The beam 41 may be a cylinder, a cylinder, or a polygonal column. An inverted L-shaped grip member 43 (preferably the angle formed by the two sides is 90 degrees or less) is attached to the tip of the beam 41 by welding. Bolts 64 are attached by welding in the middle of the beam 41. In the figure, the bolt 64 has a left-hand thread that is a male thread only at the tip. However, it may be over the entire length. This screw is, for example, the left screw of M20.

      A cylindrical body 44 is attached to the other end of the beam 41 by welding. The cylindrical body 44 is a cylindrical body through which the leg portion 20 can penetrate. If the leg 20 is a column or cylinder, it is a cylinder having an inner diameter slightly larger than the outer diameter. In this embodiment, since the leg portion 20 is a quadrangular tubular body having a side of about 5 cm, the tubular body 44 is a quadrangular tubular body having a side of 5 + cm. The cylindrical body 44 can slide on the leg portion 20.

      In FIG. 1, the distance between the gripping member 33 and the gripping member 43 can be adjusted by rotating the nut 66 by the bolt 64 of the distance adjusting means 50 passing through the hole 62 and engaging with the nut 66. That is, the attachment object 60 which is a guard rail can be clamped by shortening the distance between the holding member 33 and the holding member 43 (FIG. 6). Since the distance between the gripping member 33 and the gripping member 43 is changed by rotating the nut 66, the nut 66 does not need to be welded to the beam 41, and the bolt 64 is directly welded to the beam 41 and is stable. ing. Thereby, the space | interval adjustment means 50 is simplified and it can work stably.

      Next, a second embodiment of the present invention will be described with reference to FIG. The second embodiment differs from the first embodiment in that the bolt 64 is directly welded to the beam 41 in the first embodiment, whereas the holes 62 are formed in the beams 31 and 41 in the second embodiment. And the bolt 64 passes through the hole 62 in the beam 41 and then through the hole 62 in the beam 31 to engage a female threaded nut 66 that engages a male thread cut into the bolt. By rotating this, the distance between the arms 30 and 40 is adjusted. Although the operation and effect are almost the same, the distance between the arms 30 and 40 can be adjusted in a wide range by changing the length of the bolt 64.

      2 and 3, the bolt 64 penetrates the beam 41 in FIG. 2, but in FIG. 3, the bolt 64 is fixed to the movable arm 40 by welding, for example. If the bolt 64 is fixed to the beam 41 in FIG. 2, the configuration is the same as that in FIG. The method of fixing the bolt 64 to the beam 41 is welding. Or you may provide a rotation prevention means so that the volt | bolt 64 may not rotate easily with respect to the beam 41. FIG. As this rotation preventing means, a projection is provided on the beam 41 and engaged with the head of the bolt 64. In practice, the configuration of FIG. 2 is more convenient to manufacture / use than the configuration of FIG. This is because the bolt 64 may not be attached vertically to the movable arm 40. If not vertically attached, the bolt 64 fixed to the movable arm 40 cannot easily penetrate the hole 62 of the fixed arm 30.

      Finally, FIG. 3 shows a configuration in which the distance between the display panel mounting portion 10 and the fixed arm 30 is changed. After the distance between the display panel attachment 10 and the fixed arm 30 is appropriately determined, the fixed arm 30 is fixed to the leg portion 20 by the fixed engagement means 70. The fixed arm 30 in FIG. 4 has substantially the same configuration as the movable arm 40. That is, the cylindrical body 34 is welded to one end of the beam 31. A plurality of through holes 72 are formed in the side surface of the cylindrical body 34. Similarly, one through hole 72 is formed in the leg portion 20. The fixing arm 30 can be fixed to the leg portion 20 by passing the pin 74 through the two through holes 72, 72.

      Specifically, in order to increase the distance between the display panel mounting portion 10 and the fixed arm 30, the uppermost through hole 72 formed in the cylindrical body 34 and the through hole 72 of the leg portion 20 are combined. The pin 74 is inserted. On the contrary, in order to reduce the distance, the pin 74 may be inserted with the lowermost through hole 72 and the through hole 72 of the leg 20 aligned. Contrary to the embodiment disclosed here, a plurality of through holes may be formed in the leg portion 20, and one through hole may be formed in the cylindrical body 34. Alternatively, the cylindrical body 34 and the leg 20 may be formed with irregularities, and these may be engaged and fixed to the leg 20.

      As described above, various configurations can be considered as the fixed engagement means. In any case, immediately before the display plate attachment is actually attached to the guard rail, one of the pair of arms is fixed to the leg portion, and the other arm is moved by the distance adjusting means. An example of the fixed engagement means is already disclosed in Patent Document 1.

The side view of the display board attachment tool of 1st Example of this invention. The side view of the display board attachment tool of 2nd Example of this invention. The side view of the display board attachment tool of 3rd Example of this invention. The perspective view showing the state which attached the display board attachment tool of this invention to the guardrail.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Display board attaching part 11 Horizontal member 12 Vertical member 13 Bolt 14 Nut 20 Leg part 30 Fixed arm 31 Beam 33 Gripping member 34 Cylindrical body 40 Movable arm 41 Beam 43 Gripping member 44 Cylindrical body 50 Spacing adjustment means 60 Attachment object 62 hole 64 bolt 66 nut 70 fixed engagement means 72 through hole 74 pin

Claims (6)

A leg portion (20) for supporting the display plate mounting portion (10);
A pair of arms (30, 40) attached to the legs (20);
It comprises an interval adjusting means (50) for adjusting an interval between the pair of arms (30, 40),
One arm (30) of the pair of arms is fixedly attached to the leg (20), and the other arm (40) is movably attached to the leg (20).
In the display plate fixture that moves the other arm (40) to which the distance adjusting means (50) is movable, and clamps the attachment object (60) between the pair of arms (30, 40).
The spacing adjusting means (50) includes a nut (66) that engages with one arm (30) and a bolt that engages with the other arm (40), which are disposed apart from the leg (20). (64), wherein the nut (66) and the bolt (64) are screwed together. A leg portion (20) for supporting the display plate mounting portion (10);
A pair of arms (30, 40) movably attached to the legs (20);
An interval adjusting means (50) for adjusting an interval between the pair of arms (30, 40) and one arm (30) of the pair of arms fixed to engage with the leg portion (20) in a fixed state. Engagement means (70);
Consists of
In the display plate fixture that moves the other arm (40) to which the distance adjusting means (50) is movable, and clamps the attachment object (60) between the pair of arms (30, 40).
The spacing adjusting means (50) includes a nut (66) that engages with one arm (30) and a bolt that engages with the other arm (40), which are disposed apart from the leg (20). (64), wherein the nut (66) and the bolt (64) are screwed together. The interval adjusting means (50)
A hole (62) formed in the one arm (30);
A bolt (64) attached to the other arm (40) with a male thread at least at its tip;
A nut (66) with a female thread cut into the male thread cut into the bolt;
The nut (66) engages with a bolt (64) passing through the hole (62) to adjust a distance between the pair of arms (30, 40). 2. The display board fixture according to 2. The interval adjusting means (50)
Holes (62) formed in each arm of the pair of arms (30, 40);
A bolt (64) with a male thread at least at the tip;
A nut (66) having a female thread cut into the male thread cut into the bolt (64);
The nut (66) is engaged with a male screw at each end of a bolt (64) passing through the hole (62) to adjust a distance between the pair of arms (30, 40). The display board fixture according to claim 1 or 2. The fixed engagement means includes a through hole (72) formed in both the one arm (30) and the leg (20) and a pin (74) passing through the through hole. Item 3. A display board fixture according to Item 2. The fixed engagement means includes a through hole (72) formed in one of the one arm (30) and the leg (20) and a pin (74) formed in the other. The display board mounting tool of Claim 2.

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