JPH0449221Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a device for fixing a fence that is detachably installed on a road surface to prevent vehicles from entering.

(Prior Art) As is well known, fences are installed in condominiums, apartments, parks, etc. to prevent vehicles from entering. In this case, fences are often used, which are usually installed on the road surface and can be removed from the road surface when residents' vehicles or emergency vehicles pass by, or as necessary.

This type of fence is provided with a fixing device to prevent it from being removed unnecessarily.

Various structures have been adopted for conventional fence fixing devices, one of which is disclosed in Japanese Utility Model Application Publication No. 191250/1983. Briefly explaining its structure, the fence has legs, and the legs are detachably attached to attachment holes provided in a base such as a road surface. A rod-shaped arm is rotatably supported within this leg. A hook portion is formed at one end of the arm, and the hook portion can be inserted freely through a notch hole formed on the side of the leg portion, and is hooked to a hook portion on the inner surface of the mounting hole of the base. It's at your disposal. A slide member is rotatably attached to the other end of the arm, and both ends of the slide member are inserted into a pair of holes formed opposite to each other on the side surfaces of the leg, and guided into the holes. It is made to be able to slide freely. A keyhole for locking is provided at one end of the slide member.

When installing the fence on the base, move the hook part of the arm back from the notch hole and store it inside the leg part, insert the leg part into the mounting hole of the base, and push the other end of the slide member. Rotate the arm with to lock the hook part into the latching part of the mounting hole, and at the same time, make the keyhole at one end of the slide member protrude from the notch hole in the leg part, and pass the cylinder lock through this keyhole and fix it. are doing.

Moreover, when removing the fence from the base, it is removed by following the installation procedure described above in reverse.

(Problem to be solved by the invention) However, in the conventional fence fixing device described above, when locking the arm to the base, the end of the slide member located on the opposite side to the side where the keyhole is bored It is necessary to lock the keyhole while pushing it in. Therefore, it is necessary to work on both sides of the leg, which has the disadvantage of poor workability.

Furthermore, when attaching the arm to the base, it is necessary to position the hook portion within the leg portion. Otherwise, the hook portion will abut against the base when inserting the leg portion into the mounting hole of the base. However, it is often the case that the leg is inserted into the mounting hole without positioning the hook within the leg, and in such a case, there is a risk of damaging the arm.

Furthermore, when removing the arm from the base,
In order to release the hook part of the arm from the latching part, push in the end of the slide member located on the side where the keyhole is bored. Then, while maintaining this state, lift the arm upward and pull out the leg from the base. Therefore, when removing the arm manually, the slide member must be pushed in with one hand and the arm must be lifted with the other hand. However, the arm is usually made of iron and is very heavy, making it difficult to lift it with one hand. For this reason, there was a drawback that the workability of removing the arm was poor.

(Means for solving the problem) This invention was made to solve the above problem, and its gist is that in a device for fixing a fence with pipe-shaped legs to a road surface, (a) a base having a vertical mounting hole embedded in the fence into which the leg of the fence is inserted, and a hook formed on the inner surface of the mounting hole; (b) spaced apart vertically on one side of the leg; (c) a bracket provided on the side surface of the leg part protruding from the side of the upper notch hole and having a locking hole; and (d) a bracket formed in a dogleg shape. and is rotatably supported within the leg using the bent portion as a fulcrum, and has a hook portion at one end that is hooked to the hook portion of the base through the lower notch hole of the leg, and the other end. (e) has a stopper at one end and a keyhole at the other end; and (e) has a stopper at one end and a keyhole at the other end. (f) A lock pin that is inserted into the lock hole of the lock pin to maintain the state in which the hook part of the arm is latched to the latch part of the base; and a lock for stopping the lock, and when the lock pin is pulled out from the lock hole of the arm,
The fence fixing device is characterized in that the rotation fulcrum of the arm is arranged so that the arm rotates under its own weight to release the hook portion from the base.

(Function) When installing the fence on the base, after inserting the legs of the fence into the mounting holes, lift the end of the arm where the locking hole is formed and rotate the arm to lock the arm. Insert the lock pin into the lock hole and the lock hole of the bracket, and lock the keyhole to secure it. Therefore, the leg fixing work can be performed only on one side of the leg.

(Example) Hereinafter, an example of the fence fixing device according to this invention will be described based on the drawings from FIG. 1 to FIG. 5.

In FIG. 1, reference numeral 1 denotes a fence, which is removably installed on two bases 3 embedded in the road surface.

Each of the above-mentioned bases 3 consists of a base body 31 made of concrete and a pipe 32 made of iron.
2 is fixed in a hole formed in the base body 31,
The inside of the pipe 32 has a mounting hole 4 perpendicular to the road surface 2.

Pipe 32 of one base 3 and base body 31
has a hole 32a and a recess 3 as a hook on the inner surface.
1a are formed respectively.

The fence 1 is made of iron pipe and is formed into an inverted U shape, with legs 1a at both ends. The outer diameter of the leg portion 1a is smaller than the inner diameter of the pipe 32, and the leg portion 1a can be inserted into and removed from the pipe 32 of the mounting hole 4. Further, a stopper flange 5 is welded to a predetermined lower portion of the outer peripheral surface of each leg portion 1a.

An arm 6 is rotatably supported inside one of the legs 1a. To explain in detail, the second and third
As shown in the figure, the arm 6 is formed in a substantially dogleg shape, and a hook 6a is formed at one end of the arm 6.
A locking hole 6b is formed at the other end of the arm 6. Furthermore, as shown in FIG.
A pipe 7 passes through the bent portion and is fixed by welding. A shaft 8 is inserted through this pipe 7, and the shaft 8 is arranged above the stopper flange 5 so as to be orthogonal to the axis of the leg 1a, and both ends of the shaft 8 are bored into the leg 1a. It is inserted into the hole 1b and fixed by welding.

A lower notch hole 1c is formed in the leg portion 1a at a position below the stopper flange 5. This lower notch hole 1c faces the hook portion 6a of the arm 6.

Furthermore, the leg portion 1a is provided with a stopper flange 5.
Another rectangular notch hole 1d is formed at a higher position, and the other end of the arm 6 is inserted through this upper notch hole 1d with the locking hole 6b protruding outward. .

A pair of parallel brackets 9 are provided on the outer peripheral surface of the leg portion 1a on both sides of the notch hole 1d, projecting outward, and each bracket 9 is formed with a locking hole 9a.

The lock hole 9a of the bracket 9 and the lock hole 6b of the arm 6 have these lock holes 6.
A lock pin 10 having an outer diameter slightly smaller than the inner diameter of pins b and 9a is inserted.
This lock pin 10 has a head 10a as a stopper at one end, and a keyhole 10b bored at the other end, into which a cylinder lock 11 can be attached.

Here, a pipe 7, which is the center of rotation of the arm 6, is arranged so that a clockwise rotation moment in FIGS. 2 and 3 acts on the center of the shaft 8 due to its own weight. Therefore, when the lock pin 10 is removed to allow the arm 6 to rotate freely, the hook portion 6a of the arm 6 is connected to the hole 32a and the recess 31a as a hooking portion, as shown in FIG. It is designed to come to rest in a state in which it is separated from the lower notch portion 1c and comes into contact with the inner surface of the leg portion 1a located on the opposite side of the lower notch portion 1c.

In the above configuration, when installing the fence 1 on the base 3, when both legs 1a of the fence 1 are inserted into the pipe 32, the fence 1 is erected. At this time, the stopper flange 5 comes into contact with the upper surface of the base 3.

Next, lift the other end of the arm 6 protruding from the upper notch hole 1d of one leg 1a, rotate the arm 6 to the left in the figure, and as shown in FIG. The portion 6a protrudes from the lower notch hole 1c of the leg portion 1a and engages with the hole 32a of the pipe 32 and the recess 31a of the base body 31, and the locking hole 6 of the other end of the arm 6.
Insert the lock pin 10 into the lock hole 9a of the bracket 9. In this way, the work of locking the fence 1 can be done on one side of the leg portion 1a, resulting in extremely good workability. Furthermore, since it is locked with the locking pin 10 having an outer diameter slightly smaller than the inner diameter of each of the locking holes 6b and 9a, the arm 6 does not wobble, and therefore the hook portion 6a and the hole 32a of the pipe 32 are locked. The engagement with the recess 31a of the base body 31 is reliably maintained.

Further, in order to prevent the fence 1 from being stolen, a cylinder lock 11 is attached to the keyhole 10b of the lock pin 10.

When the fence 1 is removed from the base 3, the cylinder lock 11 is removed and the lock pin 10 is pulled out, and the arm 6 rotates clockwise in the figure due to the rotational moment due to its own weight, and the hook portion 6a connects to the hole 32a of the pipe 32 and the lock pin 10. The engagement with the concave portion 31a of the base body 31 is released, and the leg portion 1 is released again as shown in FIG.
It is stored in a. Therefore, the fence 1 can be removed from the base 3 by simply lifting it up. When the lock pin 10 is pulled out in this way,
The arm 6 rotates under its own weight and the hook part 6
Since the release of a is automatically released and the released state is maintained, both hands can be used to remove the base 3. Therefore, workability is extremely good.

This invention is not limited to the above-mentioned embodiments, and various embodiments are possible. For example, the fence is not limited to an inverted U-shape, and may be composed of a plurality of poles and chains connecting each pole.

(Effects of the invention) As explained above, according to this invention, the dogleg-shaped arm is rotatably supported within the leg of the fence using its bent part as a fulcrum, and the hook part is attached to the lower cutout of the leg. Because it retreats from the notch and is stored inside the leg,
When inserting and removing the legs from the mounting holes on the base,
The hook part does not get in the way, allowing smooth insertion and removal, improving work efficiency. Furthermore, since the arm rotates under its own weight, there is no need to manually hold down the arm in order to maintain the state in which the hook portion is housed within the leg portion. Therefore, the fence can be held with both hands when attaching and removing the legs to the attachment holes of the base. Therefore, the fence can be easily attached and removed.

In addition, the other end of the arm protrudes from the notch hole in the leg, and a locking hole is formed at the other end, so that the arm can be held up while lifting the other end of the arm with one side of the leg. This greatly improves work efficiency.

Furthermore, since the locking pin is inserted into the locking hole of the arm and the locking hole of the bracket provided in the leg and is locked, the arm will not wobble and therefore the hook part of the arm will not be attached. The engagement of the hole with the hooking part can be maintained reliably.

[Brief explanation of the drawing]

The drawings from Fig. 1 to Fig. 5 show one embodiment of this invention. Fig. 1 is a front view showing the fence installed state, and Fig. 2 is an enlarged cross-section of the main part of the fence fixing device in the locked state. Figure 3 is a sectional view corresponding to Figure 2 in the unlocked state, Figure 4 is a sectional view taken from Figure 2 - arrow direction,
FIG. 5 is an enlarged side view of the main part in the locked state. 1... Fence, 1a... Leg, 1c... Lower notch hole, 1d... Upper notch hole, 2... Road surface, 3...
Base, 4...Mounting hole, 6...Arm, 6a...
...Hook part, 6b...Lock hole, 9...Bracket, 9a...Lock hole, 10...Lock pin, 10a...Stopper, 10b...Keyhole, 11...Lock, 31a, 32a...Hook Stop.

Claims (1)

[Claims for Utility Model Registration] A device for fixing a fence having pipe-shaped legs to a road surface, including (a) vertical mounting holes embedded in the road surface into which the legs of the fence are inserted, and the mounting holes; (b) a pair of notch holes formed vertically apart from each other on one side of the leg; (c) an upper part on the side of the leg; A bracket is provided to protrude from the side of the notch hole and has a locking hole; It has a hook part that is hooked to the hook part of the base through the lower notch hole of the leg part, and an arm having a locking hole at a part protruding from the notch hole of the leg part at the other end. (e) It has a stopper at one end and a keyhole at the other end, and by being inserted into the locking hole of the bracket and the locking hole of the arm, the hook part of the arm can be latched to the base. and (f) a lock that is inserted into the keyhole of the lock pin to prevent the lock pin from coming off, and the lock pin is pulled out from the lock hole of the arm. In the above, the rotation fulcrum of the arm is set such that the arm rotates under its own weight and the hook portion is housed in the leg portion, thereby releasing the hook portion from the base. A fence fixing device characterized in that: