JPH0913720A - Auxiliary column for cantilever beam - Google Patents

Abstract

PURPOSE: To prevent unexpected accidents resulting from unnecessary elongation or contraction, even when a large load acts on a roof. CONSTITUTION: An auxiliary column is provided with a cylindrical body 1, a now member 2, a connection metal tool 3, and a nut 4. The cylindrical body 1 is provided with an pierced hole 11 for a bolt at one end, an engaging hole 12 near the pierced hole. The long member 2 is inserted in one end of the cylindrical body 1 so as to freely put it therein or put out thereof and provided with a recessed groove 21 at one side face and also an engaging hole 23 which locally coincides with the engaging hole 12 of the cylindrical body 1 at the opening edge or true groove. In the connection matal tool 3, a flat plate 32 is fitted in the groove 21 of the long member 2 to be freely movable. The bolt 31 of the connection metal tool 3 is inserted in the pierced hole 11 of the cylindrical body 1 and the bolt 31 is screwed in a nut 4 at the outside of the cylindrical body 1. A fixing protrusion 33 is provided to fit in the engaging hole 23 of the long member 2 and the engaging hole 12 of the cylindrical body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extendable auxiliary column connected to a free end of a cantilever of a roof such as a garage.

[0002]

2. Description of the Related Art When a roof of a garage such as a garage uses a cantilever, the free end of the cantilever and the ground are firmly connected to reinforce the strength of the roof against strong winds and snow loads. Auxiliary pillars are provided.

If the auxiliary pillar is always installed even during periods other than the typhoon season and the snowfall period, the auxiliary pillar obstructs the entrance and exit of the garage and is annoying to the outside. It is desired to be able to hold the post in an unobtrusive position. In addition, the roof was constructed with high accuracy and the metal fittings were fixed to the ground so that the distance between the free end of the cantilever and the pot installed on the ground would exactly match the length of the auxiliary pillar. Is difficult to install.

For the above-mentioned two reasons, as shown in the example of a simple garage in FIG. 6, the auxiliary pillar AP is telescopically expandable. In FIG. 6, 6
1 is a pillar, 62 is a cantilever, 63 is a roof, and 64 is a cane.

However, the conventional extendable and retractable auxiliary column AP
As shown in detail in FIG. 7, a long member 66 is inserted into and removed from the other end of a tubular body 65 whose one end is rotatably connected to a free end of a beam 62. After the projection length of the tubular body 65 of 66 is arbitrarily changed, the tip of the bolt 67 penetrating from the outside of the tubular body 65 is strongly pressed against the surface of the elongated member 66 to fix the adjusted length. It is configured to do.

As shown in FIG. 8, in order to detachably fix the lower end portion of the auxiliary pillar AP to the ground, a receiving jar 68 is installed on the ground, and a hook receiver 69 is provided on the receiving jar 68. A hook 610 that can be engaged with the hook receiver 69 at the lower end of the elongated member 66 of the AP, and a drop rod 611 that locks and unlocks the hook with respect to the hook receiver.
And a pin 612 for raising and lowering the drop bar. In addition, 613 of FIG. 7 is a receiving metal fitting which holds the auxiliary pillar which is shortened and lifted.

[0007]

The conventional auxiliary column has the above-described structure and has the cylindrical body 65 and the elongated member 6 formed by the bolts 67.
When the roof is heavily snowed and a heavy snow load is applied to the auxiliary pillar, or when a strong pulling wind exerts a strong pulling force on the auxiliary pillar, the cylinder is not completely fixed to the cylinder. The body 65 and the elongated member 66 may move relative to each other by overcoming the tightening force of the bolt 67, and as a result, the beam may move downward or upward, causing a sudden fall of snow from the roof onto the ground, or even the roof. Accidents have been reported, such as the snow being crushed by snow or the roof being blown up.

In view of the above points, the present invention provides an auxiliary column which is unnecessarily extended or shortened even if a large load is applied to the roof by wind or snow so that an unexpected accident does not occur. The purpose is to provide.

[0009]

In order to achieve the above object, an auxiliary column according to the present invention has a tubular body, an elongated member, a connecting metal fitting and a nut, and the tubular body has one end portion thereof The long member is rotatably connected to the free end of the cantilever, has a bolt through hole near the other end, and a locking hole provided near the bolt through hole. Has a recessed groove continuous in the longitudinal direction, and has a locking hole at the opening edge of the groove that can positionally match the locking hole of the cylindrical body, and the other end of the cylindrical body The connecting metal fitting is fixed to a proximal end portion of a bolt by a flat plate movably fitted in a groove of the long member, and the flat plate of the long member is fixed to the flat plate. The locking hole and a locking projection that can be fitted into the locking hole of the cylindrical body, which is fitted to the locking hole, are provided, and the bolt of the connecting fitting is fixed to the cylindrical body. The nut penetrates through the bolt through hole, the flat plate of the connecting fitting is inserted into the groove of the elongated member inserted into the tubular body, and the nut is screwed to the bolt protruding to the outside of the tubular body. Is characterized by.

[0010]

Operation: Loosen the nut, move the long member inserted in the cylinder in the longitudinal direction, and complete the nut with the lock hole of the cylinder aligned with the lock hole of the long member. When tightened, the locking projections provided on the flat plate of the connecting fitting are fitted into the matching locking holes of the tubular body and the long member, and the tubular body and the long member are firmly fixed. When a plurality of locking holes are provided in the longitudinal direction of the long member, the length of the auxiliary column can be set or changed arbitrarily.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 is a front view of a main part of an auxiliary column, FIG. 2 is a sectional view taken along the line AA of FIG. 1 in a state in which a bolt nut is loosened, and FIG. 3 is a sectional view taken along the line BB of FIG. 4 is a sectional view taken along the line AA of FIG. 1 in a state where the bolts and nuts are tightened, and FIG. 5 is a sectional view taken along the line CC of FIG.

As shown in FIG. 1, the auxiliary column AP according to the present invention has, as an example, a quadrangular cylindrical body 1 having a constant diameter over the entire length, and also has a constant diameter over the entire length. A long member 2 that can be inserted into and removed from the body 1 in a non-rotatable manner
, A connecting fitting 3, and a nut 4 screwed to the bolt of the connecting fitting.

One end of the cylindrical body 1 is rotatably connected to the free end of the cantilever by known connecting means, as in the conventional auxiliary column. Then, in the vicinity of the other end of the cylindrical body 1, a bolt through hole 1 for penetrating the bolt of the connecting fitting 3 is provided.
1 is formed. Further, a locking hole 12 penetrating the outer peripheral wall of the cylindrical body is formed on either the left or right side or both sides of the bolt through hole.

The elongated member 2 is formed with a concave groove 21 extending in the entire length direction on one side surface, and one or both of the opening edges 22 on both sides forming the groove 21 are engaged with the cylindrical body 1. The stop hole 12 is formed with a locking hole 23 that can match the position.

Although not shown, a hook for detachably engaging with a hook receiver of a receiving pot is attached to one end of the elongated member 2 as in the case of the elongated member of the conventional auxiliary column. And a drop pin that engages with or separates from the hook is attached so as to be movable up and down.

The elongate member 2 shown in the figure is for saving material.
Although it is formed in a rectangular tube shape almost like the tube body 1, it does not have to be a tube shape, and its cross-sectional shape is not particularly limited.

The connecting fitting 3 is constructed by fixing a flat plate 32 to one end of a bolt 31 and projecting a locking projection 33 on the flat plate. Then, the connecting fitting 3 is inserted from the other end of the tubular body 1 into the inside thereof, and the bolt 31 is inserted into the tubular body 1.
The bolt nuts 3 and 4 are held in the cylindrical body 1 by being inserted into the bolt through hole 11 of FIG. The locking protrusion 33 is provided on one side of the bolt or on the opposite side of the bolt on the surface of the flat plate 32 on the bolt side, and corresponds to the locking hole 12 of the tubular body 1 and the locking hole 23 of the elongated member 2. ,
And it can fit in the locking hole. When the locking hole 12 of the cylindrical body 1 is provided only on one side of the bolt through hole 11,
The locking hole 23 of the elongated member 2 and the locking projection 33 of the flat plate 32 of the bolt are also provided only on the same side as the locking hole of the tubular body, and the locking hole 12 of the tubular body 1 is provided on both sides of the bolt through hole 11. If it is provided in the above, the locking hole of the elongated member and the locking projection of the bolt are also provided on both sides. The flat plate 32 is movable in the groove 21 of the elongated member 2 in the longitudinal direction, but is formed in a rectangular shape whose width is substantially equal to the width of the groove 21 so as not to rotate. However, if it cannot rotate, it may be formed in an H shape, for example. In this way, since the flat plate is formed in a non-rotatable shape such as a rectangle, it is possible to move the elongated member in the longitudinal direction and fit the locking projections 33 into the locking holes 23 and 12. There is an advantage that can be easily done.

In the case of assembling this auxiliary column and setting the length thereof to the required length with the above-mentioned construction, the following is done. That is, first, the nut 4 screwed onto the bolt 31 of the connecting fitting 3 mounted on the tubular body 1 is appropriately loosened to separate the flat plate 32 from the front wall of the tubular body 1. In this state, one end of the long member 2 is inserted into the tubular body 1 and the flat plate 32 of the connecting fitting 3 is fitted into the groove 21 of the long member 2. The elongated member 2 is further inserted into the tubular body 1, and the elongated member 2 is stopped at the position where the locking hole 12 of the tubular body 1 matches the locking hole 23 of the elongated member 2. When the nut 4 is tightened in that state, the bolt 31 is called outward, and the flat plate 32 moves into the groove 2
1 moves from the bottom side to the opening side, and as a result, the locking projections 33 formed on the flat plate are fitted into the locking holes 23 of the elongated member 2 and the locking holes 12 of the cylindrical body 1 which are aligned with each other. .

As a result, even if a large force is applied to the cylindrical body 1 and the elongated member 2 in the axial direction of the material, the longitudinal action of the cylindrical body 1 and the elongated member 2 is achieved by the cooperation of the locking projection and the locking hole. Since the relative movement in the directions is blocked, the length of the auxiliary column is securely fixed, and the length does not change.

The locking hole 23 of the elongated member 2 is arranged in a range from a position where the upper end of the cylindrical body near the free end of the cantilever to which the auxiliary column is attached is connected to a hook receiver of the receiving pot on the ground. It is determined according to the distance. Therefore, the locking hole 2 of the long member
3 is processed and formed in the field according to the required length of an auxiliary pillar at the time of construction of a simple garage or the like. When the auxiliary column connected to the beam is not used and the auxiliary column is shortened and the free end is held on the beam, the state in which the auxiliary column is shortened is set to the bolt 31 of the connecting fitting. In order to fix using the nut 4, the elongated member 2 is inserted into a predetermined position in the tubular body 1 and shortened, and when the nut 4 is tightened, the locking projection 33 of the flat plate of the bolt can be fitted. The stop hole may be provided in the elongated member 2 and the cylindrical body 1. However, when the auxiliary column is shortened, a strong force in the material axis direction is not applied to the auxiliary column, so that it is not always necessary to provide a locking hole, and the locking projection 33 is simply elongated. It suffices to just press the opening edge of the groove of the member.

With the above structure, when the auxiliary column is attached near the free end of the cantilever, the elongated member 2 is moved in the process of engaging the hook at the lower end of the elongated member with the hook of the vase. It automatically moves in the axial direction of the cylinder body 1 according to the distance from the free end of the beam to the receiving pot, and then when the nut 4 of the bolt is completely tightened, the locking projection 33 of the flat plate of the bolt 3 becomes long. The member 2 and the tubular body 1 are fixed in a state of being fitted in the locking holes. Therefore, even if a strong swaying wind blows on the roof of the terrace or balcony that uses this auxiliary pillar, or if heavy load is applied to the auxiliary pillar, the length of the auxiliary pillar does not change. The load is reliably borne by the auxiliary column. Therefore, the cantilever is prevented from tilting or being lifted.

In the above embodiment, the locking hole 23 of the elongated member is used.
Was formed according to the distance between the free end of the cantilever on the site and the receiving jar, so one or two were provided at a predetermined position, but the freedom of the cantilever at each construction site In the factory, the long members may be formed at appropriate intervals over a certain range in the factory so that they can be commonly used for various distances between the end and the pot. Further, the number of the locking projections 33 of the connecting fittings is not limited to one or two as in the above example, but it may be three.
You may provide the number of pieces or more.

[0023]

As described above, according to the present invention, the relative movement in the longitudinal direction between the tubular body and the elongated member forming the auxiliary column is completely prevented by tightening the connecting fitting and the nut. With such a structure, the strength of the auxiliary column can be remarkably increased.

When a plurality of locking holes are provided in the longitudinal direction of the long member, the length of the auxiliary column can be set or adjusted arbitrarily.

Further, when the flat plate of the continuous metal fitting is formed into a shape that cannot be rotated into the groove of the elongated member, the elongated member is inserted into the tubular body and the locking projection is locked in the locking hole. Can be easily fitted to.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of an embodiment of an auxiliary column of the present invention.

FIG. 2 A-A in FIG. 1 with the nut loosened
It is sectional drawing along the line.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 AA of FIG. 1 with the nut tightened
It is sectional drawing along the line.

FIG. 5 is a sectional view taken along line CC of FIG. 4;

FIG. 6 is a perspective view of a simple garage using a cantilever and auxiliary columns.

FIG. 7 is a perspective view of a main part showing a configuration of a conventional auxiliary column.

FIG. 8 is a cross-sectional view of essential parts showing an example of a device that detachably fixes the lower end portion of the auxiliary column.

[Explanation of symbols]

 AP Auxiliary column 1 Cylindrical body 11 Bolt through hole 12 Locking hole 2 Long member 21 Recessed groove 22 Opening edge 23 Locking hole 3 Connecting metal fitting 31 Bolt 32 Flat plate 33 Locking protrusion 4 Nut

Claims (3)

[Claims] 1. An expandable and contractible auxiliary column connected to a free end of a cantilever, comprising: a tubular body, an elongated member, a connecting fitting, and a nut, wherein the tubular body has one end portion of the The long member is rotatably connected to the free end of the cantilever, has a bolt through hole near the other end, and a locking hole provided near the bolt through hole. The other end portion of the tubular body has a recessed groove that is continuous in the longitudinal direction, and an engaging hole that can positionally match the engaging hole of the tubular body at the opening edge of the groove. The connecting metal fitting is such that a flat plate movably fitted in a groove of the elongated member is fixed to a base end portion of the bolt, and the coupling member is engaged with the elongated member. A locking hole and a locking projection that can be fitted into the locking hole of the cylindrical body, which is fitted to the stop hole, are provided. The nut penetrates through the through hole, the flat plate of the connecting fitting is inserted into the groove of the elongated member inserted into the tubular body, and the nut is screwed to the bolt protruding to the outside of the tubular body. A characteristic cantilever auxiliary column. 2. The auxiliary pillar of a cantilever according to claim 1, wherein the elongated member is provided with a plurality of locking holes in the longitudinal direction thereof. 3. The cantilever auxiliary column according to claim 1 or 2, wherein the flat plate of the connecting fitting is formed into a shape that is non-rotatably inserted into the groove of the elongated member.