JPS5850091Y2 - Fixing fittings for mutually crossing bar members - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a fixture for fixing mutually crossing bar members.

In general, when constructing various buildings using steel frames, especially lightweight steel frames, for example, when fixing the main building and the gassho, or the joists and the main extensions in a superimposed cross shape, conventionally welding methods have been used. This, together with the fact that there are many crossing points between the above-mentioned two members, makes the work quite complicated. Especially when welding the main building and the gassho, the scaffolding is in a high place and is unstable. Because of the forced working posture, the situation is extremely disadvantageous in terms of work efficiency and labor.

In view of these issues, the present invention has been devised so that the loss-polymerized band members, as typified by the target example above, can be securely and robustly tightened and fixed together with a simple manual operation. It is something.

Hereinafter, the present invention will be explained in detail based on the drawings. Fig. 1 shows the entire fixing fitting according to the basic embodiment thereof, and 1 is a seat body made of a metal plate such as a steel plate, preferably described below. It is formed into a rectangular or rectangular shape having a width approximately equal to the width of the first bar member, and a screw hole 2 is bored in the center thereof.

Reference numeral 3 denotes a tensioning tool held on the seat body 1, which consists of a butterfly bolt as shown in the figure, and is screwed into the screw hole 2 from below, and is moved forward and backward as a pressing force against the bottom surface of the first bar member. .

In this case, the screw hole 2 is made into a non-threaded through hole, and a nut that matches the through hole is welded to the center of the seat body 1, and the butterfly bolt is held by the welded nut instead of the screw hole 2. It's okay.

Reference numeral 4.5 denotes a pair of left and right support arms that are arranged to stand upright from both side edges of the seat 1 in a facing manner, and one of the support arms 4 is a rigid body made of a metal plate such as a steel plate. It is integrally curved to stand up at a right angle from the side edge, and the upright plate surface is in surface contact with the side surface of the first member.

Reference numeral 6 denotes a pair of front and rear locking claws that are oppositely formed to protrude outward at the upright end of the rigid support arm 4, and 7 is formed at the center of the support arm, which forms the so-called base of the two set stopper claws 6. This is the narrow piece for insertion.

Further, the other support arm 5 is made of a single metal wire rod and is bent into a U-shape, thereby providing elasticity.

In other words, the elastic support arm 5 is constructed entirely from a pair of upright line rods that are parallel to the spiral axis (action center line) of the tensioning tool 3, and a horizontal line rod that connects the proximal ends of both of the rods. (see Figures 1 and 6), and its horizontal rod part is inserted and held from the other side edge of the seat body 1 into a cylindrical winding piece 8 that is integrally bent downward. By doing so, the elastic support arm 5 can be raised and lowered with respect to the seat body 1 using the horizontal rod portion as a rotation fulcrum a.

In this case, as is clear from FIG.
A pair of notched step portions 8a for the metal seat body 1 are cut out at both ends, and two intermediate portions of the elastic support arm 5 that is rotated abut against the stepped portions 8a. , the end point of the degree of standing up is regulated, so that when the elastic support arm 5 is rotated into the standing position,
As shown in FIGS. 1 and 4, this is approximately perpendicular to the seat 1, facing the rigid support arm 4, and supports the first bar member (to be described later) on both left and right sides using two pairs of support arms 4 and 5. It is designed to stably hold the metal fittings and prevent accidental rotation or deflection of the entire fixing metal fitting.

Reference numeral 9 designates a pair of front and rear latching hooks, which are integrally bent in opposing outwardly projecting shapes at the upright end of the elastic support arm 5, and correspond to the latching claws 6 of the rigid support arm 4.

In the basic embodiment shown in FIG. 1, the latching claws 6 and the latching hooks 9 on the pair of left and right support arms 4.5 are formed in contradictory outward projecting shapes. The purpose is to make the latch claw 6 and the latch hook 9 suitable for removably latch from the inside to the lip of the second bar member substantially made of lip channel steel. As in the modified embodiment shown in FIG. 2, the latching claws 6 and the latching hooks 9 are each formed as a pair of oppositely projecting inwardly, front and rear, so that the second It may be suitable for being removably hooked to the flange edge of the bar member from the outside.

In FIG. 2, reference numeral 10 is an escape notch formed at the center of the rigid support arm forming the base of the latch claw 6, and corresponds to the narrow insertion piece 7, so to speak.

The method of using the above-mentioned fixture is as follows.

That is, in FIGS. 4 to 6 showing the usage state of the basic embodiment, 11 is a long first member member, which is typified by a gassho or a large pull of a building using a lightweight steel frame, and is preferably C
In addition to shaped steel, it is made of steel hollow rectangular pipes as shown in Figure 3.

Further, 12 is a long second bar member corresponding to a purlin, a joist, etc., and is substantially made of ring channel steel or the like.

Then, when fixing the second bar member 12 on the first bar member 11 in an orthogonal cross shape, firstly, the fourth and fifth members are fixed to each other with the fixing fittings.
As shown in the figure, the latch claw 6 of one rigid support arm 4 is inserted from below into the lip channel steel of the second bar member 13, and after insertion, the diaphragm support arm 4 is inserted into the lip channel steel of the second bar member 13. The latch claw 6 is displaced perpendicularly to the direction and the wamp 13 is inserted from the inside.
The support arm 4 is latched upward, and the support arm 4 is applied to an arbitrary side surface of the first bar member 11, and the mounting posture of the fixing member is correctly regulated by the surface contact.

At this time, the seat body 1 faces the bottom surface of the first bar member 11 with a certain gap therebetween, and the other elastic support arm 5 supports the rotation fulcrum a as shown by the chain line in FIG. Leave it face down in the center.

Thereafter, the elastic support arm 5 is rotated and raised as shown by the solid line in the same figure, and the support arm 5 is moved in the direction already indicated by the arrow in FIG. 6 under the elasticity of its U-shaped bending. While shrinking and deforming it with your fingers, insert it from below into the lip channel steel of the second bar member 12, and then insert the hook 9 into the wamp 13.
Hang it on top.

In this case, when the reduction operation force by the fingers is released, the latching hook 9 is automatically elastically latched into the rim 13 by the restoring force caused by the above-mentioned elastic deformation, so that it is fixed here. The metal fittings are temporarily fixed, and in this temporarily fixed state, the first bundling member 11 is stably held from both the left and right sides by the supporting arms 4 and 5, and the tensioning tool 3 is also held securely as shown in FIG. The bottom surface of the first bar member 11 will be faced correctly.

Therefore, next turn the butterfly bolt related to the tensioner 3 with your fingers,
If the tip is screwed forward so as to press the bottom surface of the first bar member 11, both the support arms 4 and 5 will be pulled downward equally on the left and right sides via the seat body 1, and the first bar member 11 The second bar member 12 is crimped onto the drum, and both members 11 and 12 are attached to the drum.
are tightened and fixed to each other.

In this case, if a flat or arcuate pressing plate 14 that matches the bottom shape of the first bar member 11 is fixed to the tip of the butterfly bolt as shown in Fig. 3, incorrect deflection of the butterfly bolt can be prevented. Damage to screw holes 2 and damage to first bar member 1 caused by butterfly bolts.
This is advantageous in that damage to item 1 can be prevented.

Incidentally, when it is necessary to release the fixation of both members 11 and 12, it goes without saying that the above operation can be performed in the opposite direction.

In Figs. 4 to 6, 15 also indicates the second bar member 12.
This is a V-shaped groove arranged in a row at the center of the top surface, and slits 16 are formed through this at regular intervals in the longitudinal direction, thereby allowing roofing material, flooring material 17, etc. When fixing, the nail 18 or the like is used as a stopper to make it easier to drive.

The method of using the fixing fittings as described above is substantially superior even in the modified embodiments shown in Figs. 2 and 3, and only as shown in Figs. 7 and 8... Flange 1 of member 12
Needless to say, when the hook 9 of the elastic support 5 is to be hooked to the hook 9 of the elastic support 5 from the outside, it is necessary to expand and deform the support arm 5 by pushing it open, contrary to the above explanation in FIG. The retaining hook 9 of the support arm 5 is elastically fixed into the flange 19 by the restoring force accompanying its elastic deformation.

The shape of the latching hook 9 and the latching claw 6 may be other than those shown in the drawings.

As described above, the fixing fitting of the present invention is used for fixing the second bar member 12 onto the first bar member 11 in an orthogonal overlapping manner, and the tensioning tool 3 is screwed and held in advance. On one side edge of the rigid seat body 1 made of a metal plate, a rigid support arm 4 that can make surface contact with the side surface of the first bar member 11 from the lateral direction is integrally bent in a substantially right-angled upright shape. An elastic support arm 5 consisting of a single U-shaped metal wire rod is pivotally attached to the other side edge of the seat body 1 so as to be able to rise and fall freely, and supports the cross section of the two lever members 11 and 12 from below. Even though the fixture is equipped with a rigid support arm 4, the elastic support arm 5 cannot be laid down even after the long lever members 11 and 12 are assembled and erected. By rotating it, it is possible to freely attach or remove the fixing metal fittings at the cross points, and the workability is improved by the elastic support arm 5, and the fixing strength is increased by the rigid support arm 4 at the same time. Become a distant relative.

That is, since the metal seat body 1 and the rigid support arm 4 are integral and have an abbreviated shape, when attaching the fixing metal fitting, for example, while holding this with the left hand, hold the rigid support arm 4 in the second position. After making stable surface contact with the first bar member 11 and having the hook 6 hooked onto the rim 13 of the second bar member 12, the elastic support arm 5 is gripped firmly, for example, with the right hand remaining in that state. Like squeezing (artificially forcibly deforming elastically while standing up and rotating, the hook 9 at the tip is attached to the rim 13 of the second bar member 12).
Therefore, even though the metal fittings are equipped with the rigid support arms 4, even after the long bar members 11 and 12 have been assembled and erected, it is necessary to hang them at the cross points with only the fingertips of the worker. The fixing fittings can be installed efficiently and easily.

Moreover, at this time, the rigid support arm 4 is integrally bent from the seat body 1 in a substantially right-angled upright shape, and is applied to the side surface of the first bar member 11 in surface contact, so that in its stable posture, The other elastic support arm 5 is erected and rotated at a substantially right angle regulated by the notch step 8a of the seat body 1, and the rigid support arm 4
Since the first bar member 11 is sandwiched from both left and right sides while facing correctly, the mounting state of the fixing metal fittings is maintained stably without distortion, and the mounting work is also significantly facilitated.

Further, the elastic support arm 5 is attached to the second bar member 1 with its original shape.
The tensioning tool 3 is not simply hooked to the second bar member 12, but is hooked to the rim 13 of the second bar member 12 by the restoring force caused by artificially forced elastic deformation. Therefore, it is possible to maintain a stable temporary fixation state of the fixing metal fittings before the operation. Therefore, it is possible to perform highly efficient work in which a large number of the fixing metal fittings are first temporarily fastened, and then all of them are fully tightened continuously using the tensioning tool 3. I can do it.

Furthermore, since the tensioning tool 3 is screwed into the center of the rigid seat body 1 in advance, there is no need for a separate wedge material or driving tool, and the tensioning tool 3 can be moved from the above-mentioned temporarily fixed state to a nimble fingertip. The pull-down force generated by the rotation operation can fix both the lever members 11 and 12 in a fully tightened state, and in this case, the elastic support arm 5 is attached to an upright line rod parallel to the helical axis (action center axis) of the tensioner 3. Because it is U-shaped with a
The pulling force of the tensioning tool 3 always acts correctly and stably, and because one of them is the rigid support arm 4, there is no possibility of it falling off due to the engagement between the support arms 4, 5 and the second bar member 12. It has no negative impact.

Since the tensioning tool 3 is screwed into the rigid seat body 1, it will not accidentally rotate in the return direction, and the effective length of the screw will allow the bottom surface of the first bar member 11 to connect with the seat body 1. Of course, even if the mutual gap between the two changes in size, it is possible to immediately respond to this change, and this makes the work easier.

In any case, by providing two types of rigid support arms 4 and elastic support arms 5, a high-strength and stable fixation state that does not cause strain deformation, loosening, or misalignment of orthogonal parts can be achieved for efficient work. This can be said to be an excellent practical idea as a fixing fitting that can be reliably obtained under the following conditions.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of a fixing fitting according to a basic embodiment of the present invention, Fig. 2 is an overall oblique view of a fixing fitting according to a modified embodiment, and Fig. 3 is an overall oblique view of a fixing fitting according to another modified embodiment. 4 is a sectional view showing the usage state of the fixing fitting according to the basic embodiment, and Figures 5 and 6 are the 4th sectional view showing the usage state.
Each cross-sectional view along the A-A line and the B-B line in the figure, Nos. 7 and 8
The figure shows the state in which the fixing fitting according to the modified embodiment is used, and is a partial sectional view corresponding to FIGS. 5 and 6, respectively. 1...Seat body, 3...Tension tool, 4,5
...Support arm, 6...Latching claw, 9...
...Latch hook, 11...First bar member, 1
2...Second bar member.

Claims (1)

[Scope of utility model registration request] On the first bar member 11) A tensioning tool 3 which is screwed and operated to press the bottom surface of the first bar member 11 from below is used to secure the second bar member 12 in an orthogonal manner. The seat body 1 made of a metal plate is held at a constant temperature.The seat body 1 is integrally bent in a substantially right-angled shape from one side edge of the seat body 1 so as to be able to make surface contact with the side surface of the first bar member 11. A rigid support arm 4, also made of a metal plate, is provided with a pair of latching claws 6 that are latched onto the second bar member 12 from below. A second bar is attached at the cut-off tip of the erected line rod part which is pivotally mounted to be able to be raised and lowered so that the movement can be restricted and which is substantially parallel to the helical axis of the tensioning tool 3 in advance due to the restoring force of the artificially forced elastic deformation. A pair of latching hooks 9 which are latched to the first member 12 from below in a temporarily fixed state are formed with an elastic support arm 5 of an integrally bent U-shaped metal wire rod, and the first bar member 11 is attached to the left and right sides. By pulling both types of support arms 4 and 5, which are hooked on the second bar member 12 while being held from both sides, downward through the screw operation of the pulling tool 3, the second bar member 12 is relatively pulled. A fixture for fixing crossbar members to each other, characterized in that the first bar member 12 is crimped and tightened onto the first bar member 11.