JPH0137048Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The invention is based on a method in which, when installing sprinklers, wiring boxes, etc. on the ceiling, light channel steel is installed to support ceiling boards. This invention relates to a light channel steel fixing fitting for a T-bar for cross-connecting on top of a T-bar.

[Technical background of the invention and its problems] Conventionally, this type of fixing metal fitting has been made by, for example, a fixing metal fitting in which a suitable wire is provided with folded portions at each of its tip portions and the whole is bent into a U-shape, A U-shaped member having a male threaded portion screwed into each of its tip portions, a band plate-like member having a through hole through which the male threaded portion can be inserted, and a band plate screwed onto the male threaded portion. Fixing fittings consisting of nuts that can press the shaped members have been used, but in the case of the former, the fittings hold the light channel steel from above, and mainly force the legs of the fittings. By elastically deforming the folded part at the bottom of the leg and locking it to the lower end of the Nobuchi wood, the light channel steel is fixed on top of the Nobuchi wood using the elastic force of the fitting itself, so the metal fittings are not forced. Problems include the fact that a considerable amount of force is required to cause the light channel steel to undergo elastic deformation, and that it is not possible to firmly fix the light channel steel to the wild wood, which may cause it to deviate due to unexpected external forces. It had a point. In the case of the latter, the U-shaped member holds the wild wood and the light channel steel from below, and the strip member is inserted from above the light channel steel through its through hole to the male threaded part. , and screw the nuts onto the male threads, and the U-shaped member and the strip-shaped member hold and secure the light channel steel and wild wood in a hugging manner. Although it is possible to firmly fix light channel steel to wild wood, there are many components of the metal fittings themselves, and the installation process is quite troublesome, resulting in poor work efficiency and the possibility of component parts falling during the installation process. This had problems such as being easy to lose.

[Purpose of the invention] Therefore, the present invention was devised in order to solve the conventional problems as described above, and it is possible to easily perform the installation work, speed up the work progress, and improve the speed of the installation work. To provide a fixing fixture that is stable in its mounting state and does not easily dislodge due to unexpected external force, can firmly fix the light channel steel to the T-bar, and has a simple, robust, and inexpensive structure. The purpose is to

[Summary of the invention] Therefore, in order to achieve the above-mentioned object, the present invention provides a ceiling support that has an inverted T-shaped cross section under the head that has a generally rectangular frame-like cross section with the lower side bent into a mountain shape. In the fixing fitting that cross-connects the light channel steel on the T-bar, which is made up of continuous sections, the tightening screws that press the tips of the opposing left and right side plates to the light channel steel are female. The metal fitting body is integrally formed in the shape of a groove with an open bottom that straddles the light channel steel in the width direction, and is connected to a ceiling plate that is screwed into the screw hole so that it can move forward and backward. An engagement notch groove capable of accommodating and engaging the head of the T-bar is cut out in each of the left and right side plates so as to open diagonally toward the lower corner of the engagement notch. The opening of the groove is made up of a horizontal guide edge and a vertical guide edge, which are arranged so that the opening angle is at a right angle. In addition to extending the
The jaw compression edge is extended at right angles to the rear end of the vertical guide edge through a passing corner, and the left side contact edge rear end and the jaw compression edge rear end are connected by a relief edge, and the passage angle The distance between the parts is slightly larger than the width of the T-bar head, the distance from the passage corner at the rear end of the vertical guide edge to the relief edge is at least the height of the T-bar head, and the left side abutting edge is When it is brought into close contact with the upper left side of the T-bar head, the vertical guide edge is brought into close contact with the hanging plate, and the jaw compression edge is formed so that it can come into contact with the jaw, and the jaw compression edge and the tip of the tightening screw are connected. The gist of the present invention is that the T-bar head and the light channel steel are compressed in the overlapping direction so that the light channel steel can be connected and fixed to the T-bar head.

[Embodiments of the invention] Hereinafter, embodiments of the invention will be described with reference to the drawings.

In the figure, 20 is a T-bar installed in the room at appropriate intervals to support the ceiling board 40.
0 has a head 21 having a generally rectangular frame-shaped cross section with a lower side bent into a mountain shape, and a ceiling support part 27 having an inverted T-shaped cross section that hangs downward from the center of the lower side of the head 21. It is composed of Moreover, the corners formed by the upper surface 22 of the head 21 and the left and right side surfaces 23 and 24 are at right angles, and the left and right side surfaces 23,
24 and a mountain-shaped bottom surface 25 that is bent upward.
The jaws 26 and 26 each have an acute angle.

In addition, the ceiling support section 27 consists of a hanging plate 28 and a mounting plate 29 that is horizontally connected to the lower end of the hanging plate 28.
The end portion of the ceiling board 40 is placed on this mounting plate 29 so that the ceiling board 40 can be supported.

The fixing fitting according to the present invention has the upper end edges of the left and right side plates 5, 5 facing each other connected to both side edges of the rectangular top plate 3, and straddles the light channel steel 41 in the width direction. The metal fitting body 1 is formed in the shape of a groove that is open at the bottom so that the metal fitting body 1 can be screwed into the female threaded hole 4 screwed into the top plate 3 of the metal fitting body 1 so as to move forward and backward. The head 21 of the T-bar 20 can be accommodated in each of the left and right side plates 5, 5 of the metal fitting main body 1, and the head 21 of the T-bar 20 can be accommodated. An engagement notch groove 6 that can be engaged is cut out so as to open obliquely toward a lower corner thereof. Note that this engagement notch groove 6 forms an opening with a horizontal guide edge 8 and a vertical guide edge 7 that are arranged so that their opening angles are at right angles, and furthermore, a groove that passes through the rear end of the horizontal guide edge 8 is formed. Left side contact edge 1 via corner 10
2 are extended at right angles, and a chin compression edge 11 is extended at right angles to the rear end of the vertical guide edge 7 via the corner portion 9.
It is constructed by connecting the back end of the left side abutting edge 12 and the back end of the jaw compression edge 11 with a generally arcuate relief edge 14.
Moreover, the engagement notch groove 6 is formed in the passage corner portions 9 and 10.
The mutual interval is slightly larger than the width of the T-bar 20 head 21, and the distance from the passing corner 9 at the back end of the vertical guide edge 7 to the relief edge 14 is set to the T-bar 20 head 21.
Further, when the left side contact edge 12 is brought into close contact with the upper left side surface 24 of the T-bar 20 head 21, the vertical guide edge 7 is brought into close contact with the hanging plate 28,
The jaw compression edge 11 is set so as to be able to come into contact with the jaw portion 26.

Then, the jaw compression edge 11 and the tip of the tightening screw 2 clamp the T-bar 20 head 21 and the light channel steel 41 in the overlapping direction, so that the light channel steel 41
It is configured so that it can be connected and fixed to.

In addition, as shown in FIGS. 1 to 4, the engagement notch groove 6 has a right side abutting edge 13 that can be brought into close contact with the lower right side surface 23 of the T-bar 20 head 21 on the jaw compression edge 11 upwardly. or by extending at right angles to the
As shown in FIG. 5, the jaw compression edge 11 of the engagement notch groove 6
The left side contact edge 1 may be configured to be longer than the distance from the hanging plate 28 of the T-bar 20 to the jaw 26, or the left side contact edge 1 may be configured to be longer than the distance from the hanging plate 28 of the T-bar 20 to the jaw portion 26, or as shown in FIG.
It can be constructed by providing a concave groove 15 which is connected to the rear end of the T-bar 20 and which can accommodate the upper part of the head 21 of the T-bar 20, or can be configured as desired.

Further, the shape, size, etc. of the metal fitting main body 1 are not limited to the illustrated example and can be freely set as appropriate.

42 in the figure is a sprinkler fixed to the light channel steel 41 by appropriate means.

The upper part of the tightening screw 2 may be formed into an oval plate shape so that it can be easily turned and tightened with fingers as shown in the figure, or it may be tightened forcefully using a spanner or the like (not shown). It may be a bolt-like material that can be tightened, or it may be set as desired.

The present invention is constructed as described above, and its use will be explained next. First, light channel steel 41 is placed in a cross shape on top of the head 21 of the T-bar 20, which has been erected in advance through appropriate means. The passage corner 9,
10 With the metal fitting main body 1 tilted so that the straight line connecting each other is horizontal, lower the metal fitting main body 1 so as to straddle the light channel steel 41 in the width direction with the left and right side plates 5, 5, and further, The head 21 of the T-bar 20 passes between the passage corners 9 and 10 and is housed in the back of the engagement notch 6 (see Fig. 3), and then the metal fitting main body 1 is tilted back to stand up. state, and turn the tightening screw 2, which has been screwed into the female screw hole 4 in advance (or it may be screwed into the female screw hole 4 at this time), to press the light channel steel 41 at its tip. At the same time, when the metal fitting body 1 is pulled upward, the left side contact edge 12 comes into close contact with the upper part of the left side 24 of the head 21 of the T-bar 20,
The vertical guide edge 7 comes into close contact with the hanging plate 28, and the jaw compression edge 11 presses on the jaw 26, so that the light channel steel 41 is cross-connected and fixed to the head 21 of the T-bar 20 (Fig. 4). reference).

As shown in FIGS. 1 to 4, in the case of a fixture in which a right side contact edge 13 is provided on the jaw compression edge 11 of the engagement notch groove 6, this right side contact edge 13 is T.
The bar 20 comes into close contact with the lower part of the right side surface 23 of the head 21. In addition, as shown in FIG. 6, the fixing metal fitting in which the relief edge 14 of the engagement notch groove 6 is provided with a concave groove 15,
Before clamping the light channel steel 41 with the tip of the tightening screw 2,
If this concave groove 15 is locked to the upper part of the head 21 of the T-bar 20, the fixing metal fitting can be prevented from falling.
The state in which it is locked to the head 21 can be maintained.

[Effect of the invention] Therefore, according to the fixture according to the invention, when the light channel steel 41 placed crosswise on the head 21 of the T-bar 20 is pressed downward with the tip of the tightening screw 2, , a jaw compression edge 11 formed in the engagement notch groove 6 of the metal fitting main body 1
Since the jaws 26 of the T-bar 20 head 21 can be pressed by the clamping member, and the fixing fitting can clamp the light channel steel 41 and the T-bar 20 head 21 in the overlapping direction, a strong fixed state can be expected. . Moreover, when the fixing metal fitting is in the attached state, the left side contact edge 12 of the engagement notch groove 6
is in close contact with the upper left side surface 24 of the T-bar 20 head 21, and the vertical guide edge 7 is in close contact with the hanging plate 28, so that
The engagement notch groove 6 of the fitting main body 1 is configured to sandwich the T-bar 20 head 21 in the left-right direction between the left side abutting edge 12 and the vertical guide edge 7, so that the T-bar 20 of the fitting main body 1
This makes it possible to reliably prevent rattling or movement in the left-right direction of the T-bar 20, making the attachment of the fixing bracket to the T-bar 20 extremely stable, and preventing the attachment from being easily released by unexpected external forces. .
Furthermore, it can be easily installed by simply locking the engagement notch groove 6 to the head 21 of the T-bar 20 and tightening the tightening screw 2 while the light channel steel 41 is placed on the T-bar 20. Work efficiency can be greatly improved.

In addition, the interval between the passing corner portions 9 and 10 is determined by the T-bar 2.
0 is slightly larger than the width of the T-bar head 21, and the distance from the passing corner 9 at the rear end of the vertical guide edge 7 to the relief edge 14 is set to be greater than the height of the T-bar 20 head 21.
Unless the fitting main body 1 is tilted so that the straight line connecting the passage corners 9 and 10 is horizontal, the T-bar 20 head 21 cannot be accommodated in the engagement notch groove 6, and the T-bar 20 cannot be accommodated in the engagement notch groove 6. If the head 21 is accommodated, the fitting main body 1 cannot be removed from the T-bar 20. Moreover, the metal fitting main body 1 can be freely swung while the head 21 is accommodated in the engagement notch groove 6.

In particular, the T-bar 2 is attached to the jaw compression edge 11 of the engagement notch groove 6.
If the right side abutting edge 13 that can be brought into close contact with the lower part of the right side 23 of the 0 head 21 is extended at right angles, the fixing metal fitting can be stably locked by the T bar 20 head 21. .

In addition, when the jaw compression edge 11 of the engagement notch groove 6 is formed longer than the distance from the hanging plate 28 of the T-bar 20 to the jaw part 26, the jaw compression edge 11 of the engagement notch groove 6
In addition, the shape of the relief edge 14 portion can be formed simply, and even if the shape and dimensions of the engagement notch groove 6 are slightly different from the shape and dimensions of the head 21 of the T-bar 20, the attachment can be easily performed. becomes possible.

Furthermore, the T-bar 20 head 21 is connected to the relief edge 14 of the engagement notch groove 6 at the rear end of the left side contact edge 12.
If a groove 15 is provided to accommodate the upper part,
By simply locking this concave groove 15 to the top of the head 21, the fixture can remain locked to the T-bar 20 without falling, and other work can be done in the meantime. It becomes possible.

As explained above, according to the present invention, the installation work on the T-bar head can be easily performed, the cross-connection work of light channel steel to the T-bar can be speeded up, and the installation state of the fixing metal fittings can be improved. Becomes extremely stable,
It does not easily dislodge due to unexpected external forces, the light channel steel can be firmly fixed to the T-bar, and the structure is simple, robust, and can be provided at low cost, which has extremely excellent practical effects. It becomes something that plays.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the used state, FIG. 2 is a perspective view, FIGS. 3 and 4 are partially cutaway front views showing the installed state, and FIGS. 5 and 6.
The figures are front views of other embodiments. 1...Bracket body, 2...Tightening screw, 3...Top plate, 4...Female screw hole, 5...Side plate, 6...Engagement notch groove, 7...Vertical guide edge, 8... Horizontal guide edge, 9
... Passage corner, 10 ... Passage corner, 11 ... Jaw compression edge, 12 ... Left side contact edge, 13 ... Right side contact edge, 14 ... Relief edge, 15 ... Concave groove, 20...T
Bar, 21...Head, 22...Top surface, 23...Right side, 24...Left side, 25...Bottom surface, 26...
Jaw section, 27... Ceiling support section, 28... Hanging plate, 2
9... Mounting plate, 40... Ceiling board, 41... Light channel steel, 42... Sprinkler.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. On top of a T-bar formed by connecting a ceiling support part with an inverted T-shaped cross section under the head which has a generally rectangular frame-like cross section with the lower side bent into a mountain shape. In a fixing fitting for cross-connecting light channel steel, a ceiling plate in which a tightening screw that presses the tip of the opposing left and right side plates to the light channel steel is screwed into a female screw hole so that it can move forward and backward. The fitting body is integrally formed into a groove shape with an open bottom so as to straddle the light channel steel in the width direction.
An engagement notch groove capable of accommodating and engaging the head of the bar is cut out so as to open diagonally toward the lower corner of the engagement notch groove, and the opening angle of the engagement notch groove is An opening is formed by a horizontal guide edge and a vertical guide edge that are arranged at right angles, and a left side abutment edge is extended at right angles to the rear end of the horizontal guide edge through a passage corner, and A jaw compression edge is provided at a right angle to the rear end of the guide edge through a passage corner, and the left side abutment edge rear end and the jaw compression edge rear end are connected by a relief edge, and the passage corner The distance between them should be slightly larger than the width of the T-bar head, the distance from the passing corner at the rear end of the vertical guide edge to the relief edge should be at least the height of the T-bar head, and the left side contact edge should be When the bar is brought into close contact with the upper left side of the bar head, the vertical guide edge is brought into close contact with the hanging plate, and the jaw compression edge is formed so that it can come into contact with the jaw, and the jaw compression edge and the tip of the tightening screw are connected. A fixture for fixing light channel steel for a T-bar, characterized in that the light channel steel is configured to be connected and fixed to the T-bar head by pressing the T-bar head and the light channel steel in an overlapping direction. 2. A light groove for a T-bar according to claim 1 of the Utility Model registration claim, in which a right-side abutment edge that can be brought into close contact with the lower right side of the T-bar head is provided at right angles to the chin compression edge of the engagement notch groove. Shaped steel fixing fittings. 3. The light channel steel fixture for a T-bar according to claim 1, wherein the jaw compression edge of the engagement notch groove is longer than the distance from the hanging plate of the T-bar to the jaw. 4 Utility model registration claims Paragraphs 1 to 3 in which a recessed groove is provided on the relief edge of the engagement notch groove and is connected to the rear end of the left side contact edge and can accommodate the upper part of the T-bar head. A light channel steel fixing fitting for a T-bar according to any of the above.