JP5975564B2 - Reinforcing bracket for hanging bracket - Google Patents

Description

  The present invention relates to a reinforcing metal fitting used for a hanging metal fitting for suspending equipment, appliances, etc. suspended from a high place such as a ceiling of a structure (for example, an indoor unit such as an air conditioner) on a suspension bolt.

  In order to suspend an indoor unit from the ceiling, there is a plate-shaped hanging bracket that is attached to the indoor unit and is latched on a suspension bolt (see Patent Document 1).

JP 05-110698 A

However, this hanging bracket has the following problems.
(1) The suspension bracket has a suspension bolt notch hole for inserting the suspension bolt, but the strength of this portion is weak, and if an excessive load is applied to the suspension bracket due to an earthquake, etc. There is a possibility that the hanging metal fitting may be deformed around the notch hole portion.
(2) Due to this deformation, when a large shaking occurs due to an earthquake or the like, there is a possibility that the suspension bolt may come off from the notch hole for suspension bolt (see FIG. 14: reference numeral 60 is a suspension fitting, and reference numeral 65 is a suspension bolt. Notch hole, symbol 70 is a suspension bolt).
(3) As a result, there is a risk that an extremely dangerous situation / accident of dropping the indoor unit from the ceiling may occur.

  On the other hand, the inventor of the present application conducted intensive tests and research to prevent dropping from the suspension bolt by improving the strength of the suspension bracket and preventing the suspension bolt from coming off, and to provide a highly secure suspension bracket. The invention has been completed.

In order to achieve the above object, a first invention of the present invention is a reinforcing metal fitting used for a hanging metal fitting to be hung on a hanging bolt, wherein a notch hole for a hanging bolt formed on one side of the hanging metal fitting is used. A reinforcing metal fitting for a hanging metal fitting, comprising: a pair of fixing members provided so as to sandwich the opening from both sides; and an attachment member for attaching the pair of fixing members to the hanging metal fitting.
Here, in order to ensure the attachment of the fixing member to the hanging bracket reliably and stably, the contact portion between the hanging bracket and the fixing member is formed in an uneven shape, or one of the contact portions is formed in a protruding shape. Alternatively, the contact portion may be bonded with an adhesive member (tape or liquid), or an anti-slip material or a friction material may be interposed between the contact portions.
According to a second aspect of the present invention, one or both of the pair of fixing members is bent along a bent piece in which one side where the opening of the notch for bolt is formed is bent downward or upward (the fixing member becomes a bent piece). In addition to the case of contact, the case includes a case where contact is not provided).
A third aspect of the present invention is the hanging bracket reinforcing metal fitting, wherein one or both of the pair of fixing members are joined to the mounting member in advance.
According to a fourth aspect of the present invention, there is provided the reinforcing bracket for the hanging bracket, wherein the fixing member and the mounting member are integrally formed.
Here, the “integral molding” includes not only the case of integrally molding with a mold or a press, but also the case of integrally molding by bending a single plate material.
According to a fifth aspect of the present invention, there is provided the reinforcing bracket for the hanging bracket, wherein the mounting member tightens the fixing member with a bolt and a nut.
A sixth aspect of the present invention is the reinforcing bracket for the hanging bracket, wherein the bolt is provided with a drop prevention means for preventing the nut from dropping.
A seventh aspect of the present invention is the hanging bracket reinforcing metal fitting characterized in that the mounting member is provided with a common rotation preventing means for preventing the bolt from rotating together.
According to an eighth aspect of the present invention, the attachment member includes a band-shaped band for binding the pair of fixing members, has a tightening end surface through which a bolt and a nut are inserted at both ends of the band, and the upper tightening end surface is a band. It is characterized by being formed by stretching from the same surface as or the upper surface (for example, a shape protruding from the upper surface of the band or a shape extending linearly upward or downward from the upper surface). This is a reinforcing bracket for the hanging bracket.

According to the present invention described above, the following effects are obtained.
(1) A pair of fixing members provided so as to sandwich the opening portion of the suspension bolt notch hole formed on one side of the suspension bracket from both sides, and an attachment member for attaching the pair of fixation members to the suspension bracket. As a result, the strength of the notch hole portion for the suspension bolt is improved, and the opening portion of the notch hole for the suspension bolt can be blocked to prevent the suspension bolt from coming off, thereby preventing the suspension bolt from falling off. A highly secure hanging bracket can be provided. It also excels in work at high altitudes.
(2) One or both of the pair of fixing members is provided along a bent piece in which one side where the opening of the bolt notch hole is formed is bent downward or upward, so that the pressing force is temporarily applied to the fixing member. Since one or both of the pair of fixing members abut the bent piece even when the etc. is applied, the fixing member does not come off the hanging bracket, improving the strength of the notch hole portion for the hanging bolt and preventing the hanging bolt from coming off. Can be achieved reliably.
(3) By attaching one or both of the fixing members to the attachment member in advance, the operation of attaching the fixation member to the hanging bracket can be performed very easily.
(4) Since the fixing member and the mounting member are integrally molded, the working efficiency of the reinforcing bracket for the hanging bracket is improved, and it also contributes to component management and manufacturing costs.
(5) Since the mounting member tightens the fixing member with a bolt and a nut, the fixing member can be tightened more easily and reliably.
(6) By providing the bolt with a drop prevention means for preventing the nut from falling off, the bolt can be prevented from coming off due to the nut dropping off.
(7) Since the joint member is provided with the joint rotation preventing means for preventing the bolt from rotating together, the bolt can be prevented from rotating together, and the fixing member can be securely tightened with the bolt and the nut.
(8) The mounting member includes a band-shaped band for binding the pair of fixing members, and has a tightening end surface through which a bolt and a nut are inserted at both ends of the band, and the upper tightening end surface is an upper surface of the band. The bolts and nuts can be easily and reliably tightened by being formed from the same or upper surface. In other words, if the tightening end surface is located below the upper surface of the band, the tool for tightening the bolt and nut may interfere with the band part, etc., but the tightening end surface is formed by extending from the same surface or the upper surface of the band. By doing so, there is no interference with a band portion of a tool or the like (no tool restrictions), and the work of tightening bolts and nuts can be performed easily and reliably with excellent workability.

Explanatory drawing (1) which shows embodiment of this invention. Explanatory drawing (2) which shows embodiment of this invention. Explanatory drawing (3) which shows embodiment of this invention. Explanatory drawing (4) which shows embodiment of this invention. Explanatory drawing (5) which shows embodiment of this invention. Explanatory drawing (1) which shows other embodiment of this invention. Explanatory drawing (2) which shows other embodiment of this invention. Explanatory drawing (3) which shows other embodiment of this invention. Explanatory drawing (4) which shows other embodiment of this invention. Explanatory drawing (5) which shows other embodiment of this invention. Explanatory drawing (6) which shows other embodiment of this invention. Explanatory drawing (7) which shows other embodiment of this invention. Explanatory drawing (8) which shows other embodiment of this invention. Explanatory drawing (9) which shows other embodiment of this invention. Explanatory drawing (10) which shows other embodiment of this invention. Explanatory drawing (11) which shows other embodiment of this invention. Explanatory drawing (12) which shows other embodiment of this invention. Explanatory drawing (13) which shows other embodiment of this invention. Explanatory drawing (14) which shows other embodiment of this invention. Explanatory drawing (15) which shows other embodiment of this invention. Explanatory drawing which shows the subject of a prior art.

Embodiments of the present invention will be described with reference to the drawings.
FIG.1 and FIG.2 is explanatory drawing which shows the structure of the reinforcement metal fitting for suspension metal fittings concerning this invention (FIG. 1 is a perspective view, FIG. 2 is an exploded view). In FIG. 1, nuts (including washers) provided on the suspension bolt 70 are omitted for the explanation of the drawing.
As shown in FIGS. 1 and 2, the reinforcing bracket for suspension metal fitting (hereinafter “reinforcing metal fitting”) 10 includes a pair of fixing members 20 and 30 and an attachment member 40.
The pair of fixing members sandwich an opening 66 of a suspension bolt notch hole 65 formed on one side 61 having a bent piece 62 bent below the hanging metal fitting 60 from both sides along the bent piece 62. The first fixing member 20 and the second fixing member 30 that are substantially rectangular parallelepipeds are provided. However, the fixing members 20 and 30 are not limited to substantially rectangular parallelepipeds. The shape is not particularly limited as long as the shape is in close contact with the band 41 of the mounting member 40 described below.

The attachment member 40 includes a band-like band 41 for binding the pair of fixing members 20 and 30 and a fastener (bolt 45 and nut 46). The fastening end faces 42 and 42 of the band 41 have a clearance 44 when not fastened by the bolt 45 and the nut 46. Depending on the size of the fixing members 20 and 30 and the thickness of the suspension fitting 60, there may be a gap between the band 41, but by having the clearance 44, the tightening degree by the bolt 45 and the nut 46 can be adjusted. Thus, the fixing members 20 and 30 and the band 41 can be brought into close contact with each other.
Since the second fixing member 30 is in contact with the bent piece 62 of the hanging metal fitting 60 in the pair of fixing members 20 and 30 bound by the mounting member 40 (at this time, since the second fixing member 30 is a substantially rectangular parallelepiped, It stably attaches to the bent piece 62 without detaching from the hanging bracket 60.

  Here, the second fixing member 30 may be joined to the mounting member 40 in advance by welding or a fitting method (see FIG. 3 for the fitting method). In this way, when the fixing members 20 and 30 are attached to the suspension metal fitting 60, the attachment member 40 is inserted into the notch hole 65 for the suspension bolt (the fixing member 30 abuts on the bent piece 62 at this time). This is because the fixing members 20 and 30 can be easily and surely attached to the suspension fitting 60 simply by inserting the first fixing member 20 into the band 41 of the attachment member 40 (the attachment is first). Inserting only the member 40 into the suspension bolt notch hole 65 and then inserting the two fixing members 20 and 30 is a troublesome and uncertain because the mounting member 40 is inserted in an unstable state. Work).

Although not shown in the drawings, the bolt 45 is provided with means for preventing the nut 46 from falling off (for example, by crushing the screw portion of the bolt or providing a protrusion on the screw thread portion). Can be prevented. This contributes to a simple and reliable attachment operation for attaching the fixing members 20 and 30 to the suspension fitting 60, and also after the construction (after attaching the fixation members 20 and 30 to the suspension fitting 60). The mounting state of can be reliably maintained. In addition, workability | operativity improves by making the nut 46 into a wing nut (because a tool is unnecessary).
Further, by providing a co-rotation preventing means for preventing co-rotation of the bolt 45 (for example, a protrusion 43 of the tightening end surface 42 or a bolt hole having a square shape to engage with a root angle bolt), the co-rotation of the bolt 45 , And the fixing members 20 and 30 can be securely tightened by the bolt 45 and the nut 46.

FIG. 3 is an explanatory view showing another structure of the reinforcing metal fitting for a hanging metal fitting according to the present invention.
FIG. 3A shows a method of joining the second fixing member 30 and the mounting member 40 by a fitting type. By fitting the fitting hole 31 into the second fixing member 30 and fitting the band 41 of the attachment member 40 therein, the second fixing member 30 and the attachment member 40 can be easily joined. The same applies to the case where the first fixing member 20 is joined to the mounting member 40 (the same applies to FIG. 3B).
FIG. 3B is a variation of FIG. The joining position of the second fixing member 30 and the mounting member 40 differs depending on the position of the hanging bolt notch hole 65. That is, if the position of the suspension bolt cutout hole 65 is formed at the center of the suspension fitting 40, the second fixing member 30 is joined to the attachment member 40 at the center portion, and the suspension bolt cutout hole is formed. If the position 65 is formed near the end of the suspension fitting 40, the second fixing member 30 is also joined to the mounting member 40 at a portion near the end. The second fixing member 30 shown in FIG. 3B is provided with a fitting hole 31a and a fitting hole 31b at different positions, so that it can flexibly correspond to the joining position with the mounting member 40.
Although not shown in the drawings, the thickness of the band 41 of the attachment member 40 can be accommodated by adjusting the depth of the groove of the fitting hole 31.

4 and 5 are explanatory views showing the effect of the reinforcing bracket for indoor unit hanging bracket according to the present invention.
FIG. 4 illustrates the strength improvement (strength increase) by the reinforcing metal fitting 10. That is, since the opening 66 of the suspension bolt notch hole 65 is attached along the bent piece 62 so that the first fixing member 20 and the second fixing member 30 are sandwiched from both sides, the first fixing member 20 And the 2nd fixing member 30 plays the role just like a tree, and can improve the intensity | strength of the notch hole 65 for suspension bolt with weak intensity | strength. Therefore, the deformation | transformation with respect to the up-down direction load (FUP, FDOWN) mainly applied to the hanging metal fitting 60 can be prevented.

FIG. 5 illustrates the prevention of the suspension bolt 70 from coming off by the reinforcing metal fitting 10. That is, since the opening 66 of the suspension bolt notch hole 65 is attached along the bent piece 62 so that the first fixing member 20 and the second fixing member 30 are sandwiched from both sides, the first fixing member 20 And the 2nd fixing member 30 just plays the role of the sealing material of the opening part 66, and it can prevent that the suspending bolt 70 comes off from the opening part 66. FIG.
Note that the nut 71 and the washer 72 are used to attach the hanging bracket 60 to the suspension bolt 70, but the lower washer 72b may be provided with an anti-vibration rubber 73 (the same applies to the upper washer 72a). is there).

  As shown in FIGS. 4 and 5, the reinforcing metal fitting 10 improves the strength of the hanging bolt notch hole portion 65 and closes the opening 66 of the hanging bolt notch hole 65 to remove the hanging bolt 70. Therefore, it is possible to prevent the suspension fitting 60 from falling off from the suspension bolt 70 and to provide the suspension fitting 60 with high safety.

6-13 is explanatory drawing which shows other embodiment of the reinforcement metal fitting for suspension metal fittings concerning this invention.
First, in the reinforcing metal fitting 10b shown in FIGS. 6 and 7, both of the pair of fixing members 20b and 30b are previously joined to the band 41b of the mounting member 40b (the bolt 45b and the nut 46b which are fasteners are similarly similarly preliminarily formed). Prepared). With such a structure, the reinforcing metal fitting 10b can be securely attached to the hanging metal fitting 60 by an extremely simple operation (one-touch).

That is, as shown in FIGS. 7 (A) and 7 (B), the reinforcing metal fittings so that the hanging metal fittings 60 pass between the pair of fixing members 20b, 30b previously joined to the band 41b of the attachment member 40b. 10b is inserted.
Then, as shown in FIG. 7C, when the pair of fixing members 20b and 30b come to predetermined positions (positions where the fixing members 20b and 30b pass the bent piece 62 and sandwich the base 63 of the hanging metal fitting 60). By tightening the bolt 45b and the nut 46b, the reinforcing bracket 10b can be easily and reliably attached to the suspension bracket 60.
The fixing members 20b and 30b shown in the figure have curved four corners in the longitudinal direction, but may be rectangular (= square members).

Next, the reinforcing bracket 10c and the reinforcing bracket 10d shown in FIGS. 8 and 9 are obtained by changing the mounting positions of the reinforcing bracket.
That is, the reinforcing metal fitting 10c shown in FIG. 8 is obtained by attaching the reinforcing metal fitting so that the bent piece 62 of the hanging metal fitting 60 is sandwiched between the fixing members 20c and 30c.
Similarly, the reinforcing metal fitting 10d shown in FIG. 9 is formed by forming the second fixing member 30d in an L-shaped cross section so that the fixing member 20d, 30d sandwiches the base 63 and the bent piece 62 of the hanging metal fitting 60. Is attached.

  Further, the reinforcing bracket 10e and the reinforcing bracket 10f shown in FIG. 10 (FIGS. 10-1 and 10-2) include a pair of fixing members 20e, 30e and an attachment member 40e for binding the pair of fixing members 20f, 30f and The attachment member 40f is screwed (bundled) with a screw (a screw hole is formed in the fixing member with a tap or the like) 49 instead of a band. However, in this case, not only the screw 49 but also a fastener such as a bolt or a nut may be used.

  Furthermore, the reinforcing metal fitting 10g shown in FIG. 11 (FIGS. 11-1 and 11-2) is integrally formed with the fixing members 20g, 30g and the mounting member 40g (except for the bolt 45g and the nut 46g which are fasteners). Is. In the case of illustration, the sheet material 11g was integrally formed by bending. By making the reinforcing bracket 10g integrally molded as described above, it leads to improvement of work efficiency (one-touch construction is possible), parts management (no need to manage the fixing member and the mounting member separately), and the manufacturing cost. (The manufacturing cost is reduced as compared with the case where the fixing member and the attachment member are manufactured separately) (this also applies to FIG. 12).

  Further, the reinforcing metal fitting 10h shown in FIG. 12 (FIGS. 12-1 to 12-4) is also integrally formed with a fixing member and a mounting member (except for bolts and nuts which are fasteners) as in FIG. Is. In the case of illustration, the sheet material 11h was integrally formed by bending it into a substantially L shape. However, the reinforcing metal fitting 10h is different from the above-mentioned reinforcing metal fitting 10g in that the function of the fixing member and the function of the mounting member are united and the fixing member portion and the mounting member portion cannot be distinguished.

  Specifically, the reinforcing metal fitting 10h shown in FIG. 12A is configured to insert the hanging metal fitting 60 into the gap 50h between the upper plate side and the lower plate side of the bent plate material 11h. Here, the reinforcing metal fitting 10h is provided with a horizontal groove 51h for the suspension bolt 70 in the flat portion 12h, and a perforation 53h for bolts / nuts and screws for the standing portion 13h. In addition, in the case of screwing, the thread groove formed in the perforation 53h may be on either the upper plate side or the lower plate side (the same applies to FIGS. 12-2 and 12-3).

  The reinforcing metal fitting 10h shown in FIG. 12-2 eliminates the lateral groove 51h by forming the flat portion 12h in a size that does not interfere with the suspension bolt 70. Further, in addition to the bolts and nuts and screw holes 53h for the upright portion 13h, the flat parts 12h are also provided with bolts and nuts and screw holes 52h. Note that it is not always necessary to use both the perforation 52h and the perforation 53h, and either one may be used (the same applies to FIG. 12-3).

The reinforcing metal fitting 10h shown in the perspective view of FIG. 12-3 (A) is a case where the hanging metal fitting 60 is inserted into the gap 50h formed in a substantially L shape as shown in the plan view of FIG. 12-3 (B). In addition, by forming a slit 47h below the upright portion 13h, the base 63 of the suspension fitting 60 is inserted into the slit 47h as shown in the plan view of FIG. 12-3 (C), and FIG. 12-3 (B). It is also possible to attach in the opposite direction to the case of. Further, two holes (52h, 54h) are provided in the flat part 12 and two places (53h, 55h) are provided in the standing part 13h, respectively, for bolts / nuts and screw holes.
12-4 is a development view of the reinforcing metal fitting 10h shown in FIG. 12-3.

  FIGS. 11 and 12 show an embodiment in which the fixing member and the mounting member are integrally formed. The shape (including the development view) in the case of integrally forming a single plate by bending is illustrated. It is not limited to those. In addition, the integral molding includes a case where the molding is integrally performed by die processing or pressing.

  13 (FIGS. 13-1 and 13-2), the reinforcing metal fitting 10i (attachment member 40i) includes a fastening end face 42i on both ends of the band 41i and a fastening end face 42i on the upper side of the band 41i. They are formed on the same plane (see the same plane) (see FIG. 13-1). This makes it possible to easily and reliably tighten the bolts and nuts. That is, when the tightening end surface is positioned below the upper surface of the band, the tool for tightening the bolt and nut may interfere with the band portion or the like. However, as shown in FIG. By forming it on the same surface as the upper surface of 41i, the bolt 45 and nut 46 can be easily and reliably tightened without interference with the band 41i portion of a tool or the like. The upper fastening end surface 42i may be formed on the same surface as the upper surface of the band 41i, or may be formed by extending from the upper surface of the band 41i (for example, a shape protruding from the upper surface of the band 41i, And a shape extending linearly upward or downward from the upper surface).

  Finally, in the embodiment shown in FIG. 14, the fixing member 30 j is attached to the suspension fitting 60. The mounting position of the fixing member 30j is not limited to the illustrated part, and may be a position where the opening 66 is closed. Further, the opening 66 may be sandwiched from both sides by two fixing members instead of one fixing member. The fixing member 30j may be attached using a known attachment method such as welding or adhesion.

  As described above, the embodiment shown in FIGS. 1 to 14 is not limited to the illustrated embodiment, and can be used in appropriate combination (for example, the attachment member 40e shown in FIG. 10 is attached to the reinforcing metal fitting 10b shown in FIGS. 6 and 7). (Use screw 49).

  The reinforcing metal fitting according to the present invention can be widely used particularly as a hanging metal fitting for suspending an indoor unit such as an air conditioner from the ceiling side. However, the present invention can be used not only for hanging brackets for hanging indoor units such as air conditioners from the ceiling side, but also for hanging brackets widely attached to hanging bolts.

10 Reinforcing Brackets (Reinforcing Brackets)
20 First fixing member 30 Second fixing member 31 Fitting hole 40 Mounting member 41 Band 42 Tightening end surface 43 Projection 44 Clearance 45 Bolt 46 Nut 49 Screw 60 Suspension fitting 61 One side 62 Bending piece 63 Base 65 Notch hole for suspension bolt 66 Opening 70 Hanging bolt 71 Nut 72 Washer 73 Anti-vibration rubber

Claims (7)

Reinforcing brackets used for hanging brackets to hang on suspension bolts,
A pair of fixing members provided so as to sandwich the opening portion of the suspension bolt notch hole formed on one side of the suspension bracket from both sides;
An attachment member for attaching the pair of fixing members to the hanging bracket ,
The mounting member is a reinforcing metal fitting for a hanging metal fitting , wherein the fixing member is fastened by an independent bolt and nut different from the hanging bolt and a nut screwed therein .   The suspension bracket according to claim 1, wherein one or both of the pair of fixing members is provided along a bent piece in which one side where the opening of the bolt notch hole is formed is bent downward or upward. Reinforcing metal fittings.   One or both of a pair of fixing members are joined to the mounting member in advance, and the reinforcing bracket for a hanging bracket according to claim 1 or 2.   The reinforcing bracket for a hanging bracket according to claim 1 or 2, wherein the fixing member and the mounting member are integrally formed. 5. The reinforcing bracket for a hanging metal fitting according to claim 1, wherein the bolt is provided with a dropping prevention means for preventing the nut from falling off. 6. The suspension bracket reinforcing bracket according to claim 1, wherein the mounting member includes a rotation preventing means for preventing the bolt from rotating together. The mounting member includes a band-shaped band for binding a pair of fixing members, and has a tightening end surface through which a bolt and a nut are inserted at both ends of the band, and the upper tightening end surface is the same surface as the upper surface of the band or The reinforcing metal fitting for a hanging metal fitting according to any one of claims 1 to 6, wherein the reinforcing metal fitting is extended from an upper surface.

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