JPH0674611B2 - Structural material joining device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a structural material joining apparatus that is preferably used for a construction structure such as an aluminum sunroom or a balcony.

[Background technology]

If this kind of structural material joining apparatus is shown for joining a structural material in a T-shape like a corner pillar in a sunroom and a seamless or a girder, for example, the one shown in FIG. 1 is generally used. Is. That is, in FIG. 1, when a similar girder 2 is joined to a corner post 1 made of an extruded aluminum alloy material, an aluminum alloy joint part 3 having a U-shaped cross section is formed.
A device for joining the bottom wall to the corner post 1 and screwing and fixing it to a steel back plate (not shown) with bolts 4, and fitting the girders 2 to the joint parts 3 and fixing them with bolts 5. Is used.

However, when the joint strength in this case was determined by the experimental method described later, it was only 5.7 ton · cm ² (the breaking load of the pillar material was 175 Kg f).

Incidentally, for example, especially in the design conditions solarium area large building structures 4m × 2m, velocity pressure 120 kg f / m ^2, snow load 60 kgf / m ^2, the floor surface load as 180 kgf / m ^2, it Tsuyoshi When the structure is joined, the structural material joining strength between the girder and the corner post needs to be about 18 ton x cm ^2, so the conventional one shown in Fig. 1 requires this kind of construction structure. No good joint strength can be obtained.

Further, as a structural material joining device that replaces the one shown in FIG. 1, for example, Japanese Patent Laid-Open No. 51-133916 is known.

The joining device according to this proposal has a nut receiving groove in the inner surface longitudinal direction, a pair of hollow block-shaped common force bones having screw holes in diagonal corners, and a hexagon nut slidably mounted in the nut receiving groove of each force bone, One side of the structural bone is loosely fitted into the hollow portion of the mechanical bone through a through hole of the mounting plate and a mounting plate fixed to the mechanical bone by a screw screwed into a screw hole. And a long bolt for loose fitting of a force bone screwed to a hexagonal nut through a through hole of the other force bone screwed to the non-joint side wall of the structural material, A fixing bolt that penetrates the through hole and is screwed into a hexagonal nut to fix the structural material fitted to the one force bone.

In this case, it is recognized that the joint strength is improved to some extent by using a common pair of force bones, and there is an advantage that one type of force bone may be provided by commonization.

However, in the case of standardization, the force bone is supposed to have a hexagonal nut slidably mounted, and the long bolt is inserted through the through hole of the mounting plate into the hollow portion of the force bone in a loose fitting manner. The fixing of the dimensional bolt requires that the positions of the mounting plate, the long sized bolt, the through hole of the structural material, the through hole of the force bone, and the hexagon nut are completely aligned, and strict accuracy is required. In particular, since the force bones are inserted into the structural material, it is essential that the through holes of the force bones and the hex nuts that are slid on the slides be in the exact position in the fitted state, while the force bones are greatly swung forward. It is necessary to screw a long bolt to this hexagon nut, and the joining work becomes extremely complicated. For example, when upward work is required at the upper position, such joining work is actually performed. Things are extremely difficult and dangerous.

Further, in this joining device, since the other force bone to which the hexagon nut is slid and attached is screwed to the non-joint side wall of the structural material, considering the clearance existing between the structural material and the force bone, Since the fixing directions of the long bolt and the screw of the non-joint side wall are opposite to each other, the pulling-in joining of the other force bone by the long bolt is prevented, so that the structural material joining strength can be sufficiently secured. In addition, the long bolt is screwed into the hollow part of the one force bone from the through hole of the mounting plate to the hexagon nut of the other force bone without loose fitting, so that the long bolt cannot be held. It will be partially performed at the front and rear ends in the longitudinal direction, so that when one or both of the structural members receives an external force such as a load, the long bolt cannot withstand this, and This means that the structural material joint strength cannot be sufficiently secured.

Furthermore, since this joining device requires hexagonal nuts, mounting plates, and screws for fixing the mounting plates in addition to the mechanical bones, etc., depending on the fixing position as described above, the number of parts is large and, for example, work failure due to loss of parts, etc. There is still the possibility of inviting.

[Object of the Invention]

The present invention has been made in view of such circumstances, and an object thereof is to have an extremely high level of bonding strength even when used for the above-mentioned large-sized construction structure, while performing a bonding work with a small number of parts. An object is to provide a structural material joining device that is as simple as possible.

[Structure of Invention]

According to the present invention, in accordance with the above object, a single integral first force bone having a thick nut joint wall which is an integral surface itself, and, in addition to this, diagonal corner portions inwardly facing C-shaped pairs are further provided. Using the same single integral second force bone equipped with four corners of bolt guide strips, four long-distance pullers for fixing diagonal lines inserted through the bolt guide strips in a longitudinal close-fitting and embracing manner. By screwing the joint bolt to the thick-walled nut joint wall of the first force bone, the side wall of the first structural member is sandwiched and interposed, and the second force bone and the first force bone are diagonally drawn together. A diagonal corner of the second force bone is also included, which includes a configuration in which the second structural material is fixed by crimping, and the second structural material fitted to the second force bone is similarly fixed by screwing a fixing bolt into the thick wall nut joint wall. Crimping joint of the second force bone and the first force bone by diagonally pulling together with the four long length pulling joint bolts which are separated as much as possible from each other by the four parts By to perform constant,
The present invention is a structural material joining device that simply and reliably obtains a high joining strength with a small number of parts, that is, the present invention is thicker than the bolt diameter and has nut holes at four predetermined positions in the plane. Hollow block having a surface-shaped thick-walled nut joint wall formed by drilling, and a T-shaped one-side receiving side first structural member made of an aluminum molding material in one piece And a bolt guide strip having four inward C-shaped diagonal diagonal strips, each of which has a thick-walled nut joint wall of itself and is diagonally opened at diagonal corner positions along the entire length in the longitudinal direction. A second block of a T-shaped second joint side second structural member composed of a single hollow block-shaped aluminum molding material and the above-mentioned inward C-shaped diagonal bolt guide strips. From the non-joint side through the end washer, insert into the bolt guide strip in a longitudinal close-fitting and embracing manner, By screwing into the respective nut holes of the nut joint wall, the face-contact side wall of the first structural material into which the first force bone is inserted is sandwiched and interposed, and the second force bone and the first force bone are pulled together by a diagonal line. Second force bones that are integrally pressure-bonded and fixed to each other. Four long-length pull-down joint bolts for diagonal corner position diagonal line fixing and second force bones by screwing into each nut hole of the thick nut joint wall. Means for achieving the above-mentioned object as a gist of the invention, and a structural material joining device comprising: It is what

Hereinafter, the present invention will be described in more detail with reference to the drawings showing an embodiment in which a first structural member 16 and a second structural member 21 having no corners made of extruded aluminum alloy are jointed in a T-shape in a sunroom. 6 and 6 in FIGS. 2 and 3.
Is the first force frame, 11 is the second force frame, 20 is the long pulling joint bolt,
25 shows fixing bolts, respectively.

The first strength frame 6 is for the first structural member 16 on the T-shaped one-side receiving side, and has a wall thickness equal to or more than the bolt diameter of 8 mm of the bolt 20 and, in this example, a wall thickness of 8 mm. One side is provided with a thick-walled nut-jointing wall 7 which is itself formed by drilling nut holes 9 at four predetermined positions inside and has a wall thickness of 4 mm each.
And a side wall 8 on the three sides, which is thicker than usual, and has a thick rectangular shape, for example, a long rectangular hollow block of 65 × 64 × 168 mm, which is integrally formed.

The second power frame 11 is used for the second structural member 21 on the other side of the T-shaped connection, and as in the case of the first power frame 6, the bolt diameter of the pulling joint bolt 25 is equal to or more than 8 mm, and in the present example as well. The wall thickness is increased to 8 mm, and a thick nut joint wall 12 which is itself formed by drilling two nut holes 25 at two predetermined positions in the plane is provided at vertically opposed positions, and the wall thickness is also the same. Each has 4 mm left and right side walls 13 and further has 4 inward C-shaped diagonal strips extending in the longitudinal direction and having diagonal slits each having 60 ° slits diagonally. 64 × 65, which is provided with a bolt guide strip 14 which has an inner diameter of 8 mm in accordance with the bolt diameter of the pulling joint bolt 20 and is capable of stably inserting and passing the pulling joint bolt 20 in a longitudinal close-fitting embrace state. It is a hollow block with a slightly short rectangular shape of × 80 mm, which is configured as a single unit.

The first strength bone 6 and the second strength bone 11 are each specifically made by cutting a long aluminum alloy extruded material into a predetermined size and subjecting it to a predetermined processing. There is.

In the present example, the first strength bone 6 has a wall thickness of 2 mm, and
Hollow part of the first structural member 16 which is a square hollow with a dimension of 0 ± 0.8 mm
The thick-walled nut joint wall 7 of the first force frame 6 is fitted into 17 so as to make face-to-face contact. At this time, a clearance of 1 mm is generated between the first structural member 16 and the first force frame 6 in terms of dimensions, but this degree of clearance is necessary for fitting, and this clearance facilitates fitting itself.

In this way, the first force bone 6 fitted in the first structural member 16 is sandwiched by interposing the face-contact side wall 18 of the first structural member 16 with the second force bone 11 diagonally drawn and integrally crimped and fixed. I'm sorry.

This crimping, joining and fixing is carried out by using four long-sized pull-down joining bolts 20 for fixing the diagonal line, which are made of stainless steel with a bolt diameter of 8 mm, a screw pitch of 1.25 mm, and a length of 100 mm as described above.
This is done at the diagonal corner positions of the second force bone 11.

That is, the long pull-down joint bolt 20 is increased in diameter so as to be inscribed in the second force bone 11 from one end on the non-joint side of each inwardly facing C-shaped bolt guide strip 14 in the second force bone 11. End washer
The bolt guide strips 14 are inserted through the bolt guide strips 14 in the form of a close-fitting embrace in the longitudinal direction through the bolt guide strips 14 and drilled in the thick-walled nut joint wall 7 of the first force bone 6 as described above. The long-side pull-down joint bolts 20 are respectively screwed into the nut holes 9 so that the positional relations of the long-side pull-down joint bolts 20 are maximally separated from each other. The force bone 11 and the first force bone 6 are firmly crimped and fixed integrally at the four diagonal corners thereof by pulling the diagonal line.

The second structural member 21 fitted with the second structural member 11 is further joined to the second structural member 11 by a pair of fixing bolts 25 also made of stainless steel via a washer 24.

In the second structural member 21, in the present example, the central contact portion of the contact sidewalls 22 facing each other in the vertical direction is padded to have a thickness of 4 mm, and the other is 2 mm.
It is a hollow rectangular shape having a thick wall of
From the through hole 23 that was drilled in the buildup part of the
25 are inserted respectively, and the second force bone in the second structural member 21 is inserted.
The connection is performed by directly screwing into the nut hole 15 which is also drilled in the thick nut connection wall 12 of 11.

In the figure, 10 is a nut hole provided in the side wall 8 of the first force bone, 26 is a structural member that is seamless on the end side, and 27 is used for bonding the structural member 26 because the bonding strength is almost the same as the conventional one. The joint block, 28 is a fixing bolt adapted to be screwed into the nut hole 10 when fixing the joint block.

FIG. 4 shows another example. In the present example, contrary to the above example, the first structural member 21 and the second structural member 16 of the corner post are used interchangeably, and An example in which the second structural member 16 is fixed to the structural member 21 in the same manner as in the above example is shown, and since the structure of the joint fixing by diagonally pulling the same is not different from the above example, the same reference numerals are given. The description is omitted.

By the way, Table 1 shows the results obtained by conducting an experiment on the joining strength of the structural material joining apparatus of the present invention configured as described above by the compression test and the tensile test with respect to the above-mentioned examples.

That is, the first structural member is arranged inward from the position of about 10 mm from the end of the first structural member, and the second structural member is fixed by joining and fixing the same to the second structural member. While constructing the structural material joining device, the first structural material and the second structural material
Eight substantially L-shaped test pieces with 700 mm from the end cut at 45 ° to the axial center position of other structural materials orthogonal to this were made, and each of the above-mentioned cut ends was put into a universal testing machine. It was set in a horizontal V shape so as to be vertical. And 50Kg in this state
Compressive load or tensile load for each f is sequentially and continuously applied, and the displacement of the first structural material and the second structural material and the lateral displacement of the joint center are measured for each two bodies by the continuous load test. On the other hand, in order to measure the residual displacement, a repeated load test was carried out for every two bodies by unloading the compressive load and the tensile load at every 100 Kgf. These loads were applied until they yielded, and the yield load at that time was measured and the condition of the joint was observed.

As can be seen from the above, in the conventional joining device shown in FIG. 1, the structural material was broken at 175 Kgf (5.7 ton · cm ² ), whereas in this example, the continuous test was performed. In that case, from 634 Kgf (31.4ton ・ cm ² ) to 437Kgf (21.6ton ・ c)
m ² ), 569 Kgf (28.2ton ・ cm ² ) for repeated tests
To 429 Kgf (21.2 ton · cm ² ) and the bonding strength is extremely high, about 4 to 5.5 times that of the conventional one.
Both were well above ton · cm ² and exhibited a high degree of joint strength.

In carrying out the present invention, the first strength frame and the second strength frame are made of an aluminum cast molding material, and the thickness of the thick-walled nut joint wall is set to at least 2 mm or more and the relative relationship with the bolt diameter. In addition, the first force bone and the second force bone are commonly used for those having a bolt guide strip and a nut hole at diagonal corners. The respective specific materials, shapes, structures, dimensions of the first structural material, the second structural material, the long pull-down joining bolts, and the fixing bolts, and their relations are changed unless they are against the gist of the invention. Of course, the invention is not limited to the ones shown and described above.

〔The invention's effect〕

Since the present invention is configured as described above, the first force frame and the second force frame
The force bone is a state in which the face-to-face side wall of the first structural material is sandwiched and interposed,
At the diagonal position of the maximum distance in the second force bone, the bolt guide strips of four inwardly facing C-shaped diagonal strips, which are diagonally opened and extend along the entire length in the longitudinal direction, are inserted through the bolt guide strips in the longitudinal tight fitting manner. The four diagonal fixing bolts for long-distance pulling together have a structure in which they are crimp-joined and fixed integrally with each other. Even with respect to the force in the pulling direction, these long pull-down joint bolts are opened diagonally, and the bolt guide strips inserted and inserted in the longitudinal direction close-fitting embrace securely hold the screws at right angles. The joint strength of the structural materials can be ensured at a high level by maintaining the combined joint state, whereby the structural materials to be joined in a T-shape can be integrated extremely firmly, and the high joint strength in the constructed structure can be achieved. To achieve the joining Once again, the integral compression bonding fixing the diagonal attracting, also becomes shall extend to 4 times to higher than the one using a conventional joint member,
In order to secure the structural strength of a large-sized building structure, it is possible to easily obtain a rigid and fixed joint.

Further, the present invention is sufficient to use the above-mentioned first force frame, second force frame, four long-side pulling joint bolts, and fixing bolts for T-shaped joining of structural materials. It is possible to reduce the number of parts as much as possible without using other parts.

Further, the crimping joint fixation is carried out by diagonally opening the diagonally opposite corners of the second force bone, and diagonally opening four diagonally fixed C-shaped four diagonal diagonal guides on each inward C-shaped bolt While inserting and penetrating through the long-side pulling joint bolt, the tip end is screwed into each nut hole provided in the thick wall nut joint wall of the first force bone by sandwiching the face contact side wall of the first structural material. The second structural member fitted with the second force bone may be screwed and fixed to a similar nut hole of the second force bone by a fixing bolt. The joining work of screwing becomes easy, and without complicated work,
It is possible to simply and reliably join the structural materials having the above-mentioned high joining strength.

Further, the first force bone having a planar thick nut joint wall and the second force bone having four inwardly facing C-shaped diagonal four bolt guide ribs are integrally formed of aluminum molding material. Since the,
The molding accuracy can be easily ensured and the production is easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a conventional structural material joining device, and FIG.
FIG. 3 is an exploded perspective view showing an embodiment of the present invention, FIG. 3 is a perspective view showing a joined and fixed state thereof, and FIG. 4 is an exploded perspective view showing another example. 6 …… First force bone, 18 …… Interfacing side wall 7 …… Thick wall nut joint wall, 19 …… Washer 9 …… Nut hole, 20 …… Long pulling joint bolt 11 …… Second force bone 12… … Thick wall nut joint wall, 21 …… Second structural material 14 …… Bolt guide strip, 22 …… Interfacing side wall 16 …… First structural material, 25 …… Fixing bolt

Front Page Continuation (72) Inventor Toshihiro Takahashi 200 Yoshida, Kurobe City, Toyama Prefecture Inside the Kurobe Factory of Yoshida Industrial Co., Ltd. (72) Inventor Hiroshi Inoue 3-6-18 Tsurumaki, Setagaya-ku, Tokyo (56) References 51-133916 (JP, A) JP 58-34627 (JP, B2)

Claims (1)

[Claims] 1. A hollow block-shaped unit having a thick-walled nut-joining wall which is thicker than the bolt diameter and is formed by drilling nut holes at four predetermined positions in the plane. It is equipped with a T-shaped one-side receiving side first structural member made of an aluminum molded material integrally, and a thick nut joint wall, which itself is also planar, and is located at a diagonal corner position. Hollow block-shaped single T-shaped joint side made of aluminum molded material with diagonally opened inward C-shaped four diagonal diagonal bolt guides over the entire length in the longitudinal direction The second force frame for the second structural member and the inward C-shaped diagonal diagonal four-piece bolt guide strips from the non-joining side to the bolt guide strips through the end washers in the longitudinal close-fitting and holding shape. The first force bone by inserting it into the nut and screwing it into each nut hole of the thick wall nut joint wall. Four second force bones diagonal corner corner position diagonal line fixing, in which the facet side wall of the first structural member is sandwiched and sandwiched, and the second force bones and the first force bones are diagonally pulled together and integrally crimped and fixed Each long-side pulling joint bolt and each fixing bolt in which the face-contact side wall of the second structural material in which the second force bone is fitted by being screwed into each nut hole of the thick nut joint wall is joined to the second force bone A structural material joining device comprising: