JP2021177035A - Panel fixtures and how to install the panel - Google Patents

Abstract

To provide a fixing tool of a panel and an installation method of the panel capable of properly maintaining a pressing force of a spring part by torque management even if a screwing stroke of a bolt is changed.SOLUTION: A bolt 40 has a pointed part 43 at its tip, and the pointed part 43 is inserted into a locking part 21c formed in a spring part 21. A female screw member 30 positioned in a state where a female screw part 31a is slidable in a direction orthogonal to a screw shaft center is provided on the spring part 21 side of a through-hole formed in a flange or an auxiliary member 50. The female screw member 30 has a locking nut 31 having the female screw part 31a, and the pointed part 43 of the bolt 40 is projected to the spring part 21 side by screwing with the female screw part to adjust the elastic force.SELECTED DRAWING: Figure 5

Description

The present invention relates to a panel fixture for sound absorption or soundproofing used, for example, in railways and highways, and a method for installing the panel. More specifically, in order to fix the sound absorbing or soundproofing panel inserted between the columns facing the U-shaped cross section, between the U-shaped flange or the auxiliary member attached to the U-shaped flange and the panel. It has a spring member having a bent spring portion and a band-shaped member bent and formed, a female screw member having a female screw portion, and a bolt which is screwed into the female screw member and abuts on the spring portion. The present invention relates to a panel fixture for fixing the panel by pressing the panel against the U-shaped portion by the elastic force of the spring portion, and a method for installing the panel.

As the panel fixing tool, for example, the one described in the following Patent Document 1 is known. According to the same document, a bearing force transmitting member 1 having a portion corresponding to a spring portion is attached to a flange, and a bolt is projected between the input portion 13 and the nut 3 of the bearing force transmitting member 1 to form a flange and a panel. The panel is pressed and fixed to the flange by stretching it between them.

By the way, in the fixture, it is premised that the locking washer 4 is used and the bolt head is tightened until it comes into contact with the washer. Therefore, if the panel thickness and the flange spacing are different, it is necessary to prepare bolts having different lengths, which is complicated. By the way, although it is assumed, if the screwing of the bolt is stopped at an arbitrary position by using a long bolt, torque management is performed in order to make the spring force of the bearing force transmission member 1 work constantly. However, according to the same document, all the relative positions of the nut 3 and the bolt and the bearing force transmitting member 1 are fixed via the stopper 6, and when the distance between the input portion 13 and the nut 3 changes, the bolt The positions of the tip and the input portion 13 with respect to the bolt longitudinal orthogonal direction are also changed. Therefore, there is a concern that these contacts cannot be secured to the extent that a normal spring force is secured, and that the torque management may be hindered. In this case, it becomes difficult to control the reliable fixing of the panel.

JP-A-2017-137704

In view of such a conventional situation, the present invention provides a panel fixture and a method of installing the panel, which can maintain an appropriate pressing force of the spring portion by torque management even if the screwing stroke of the bolt changes. The purpose is to do.

In order to achieve the above object, the feature of the panel fixture and the method of installing the panel according to the present invention is to fix the panel for sound absorption or sound insulation inserted between the columns having the U-shaped cross section facing each other. Therefore, a spring member that is mounted between the U-shaped flange or an auxiliary member mounted on the flange and the panel and has a bent spring portion to form a strip-shaped member, a female screw member having a female screw portion, and the like. The bolt has a bolt that is screwed into the spring portion and is brought into contact with the spring portion. The pointed portion is inserted into the locking portion formed in the spring portion, and the female screw portion is orthogonal to the screw axis on the spring portion side of the through hole formed in the flange or the auxiliary member. A female screw member that is positioned so as to be slidable in the direction is provided, and the female screw member has a locking nut having a female screw portion, and the sharp portion of the bolt protrudes toward the spring portion by screwing with the female screw portion. The purpose is to make the elastic force adjustable.

According to the same configuration, the bolt has a pointed portion at the tip, and the pointed portion is inserted into the locking portion formed in the spring portion, so that the bolt tip is securely engaged with the spring portion and tightened. Displacement can be transmitted. Moreover, since the female screw member is provided to position the female screw portion in a slidable state in the direction orthogonal to the screw axis, the female screw portion also slides together with the bolt as the locking portion is displaced, and is orthogonal to the female screw portion. Prevents unnecessary stress in the direction from occurring. As a result, the tightening torque of the bolt appropriately reflects the reaction force generated from the spring portion, and the panel can be pressed against the flange or the like with an appropriate pressure. Moreover, that state is maintained by the locking nut.

In the above characteristic configuration, the female screw member may include a plate-shaped portion that receives the lock nut and further contacts the spring member in a wider area than the nut.

Further, the spring member has a holding portion held by the flange or the auxiliary member and a connecting portion connecting the spring portion and the holding portion, and the spring portion is connected via the holding portion and the connecting portion. It is supported in a cantilever shape, and the female screw member may have a plate-shaped portion and may include a clip portion that can be engaged with the holding portion.

The spring portion may include a flat portion on which the locking portion is formed, a contact portion that contacts the panel at a bent angle, and a bent portion that connects the flat portion and the contact portion.

Further, the auxiliary member provided with the through hole may be further provided. Then, the auxiliary member may include a clip portion engaged with the holding portion and a nut screwed with the through hole on the flange provided with the through hole.

On the other hand, a feature of the panel installation method using the panel fixture is that the spring member is held by the flange or the auxiliary member fixed to the flange by the holding portion, and the female screw is held by the clip portion in the holding portion. By holding the member, penetrating the through hole, screwing the bolt into the female screw portion and tightening the bolt, the sharpened portion is engaged with the engaging portion, and the spring portion is pressed against the panel to obtain a predetermined value. The bolt is tightened until the torque is reached.

According to the characteristics of the panel fixture and the method of installing the panel according to the present invention, it is possible to properly maintain the pressing force of the spring portion by torque management even if the screwing stroke of the bolt changes.
Other objects, configurations and effects of the present invention will become apparent from the sections of embodiments of the invention below.

It is a perspective view which shows the state which installed the panel using the fixture of the panel which concerns on this invention. It is a side view of the support column in the longitudinal direction of FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is a side view of the female thread member. It is sectional drawing in the plane passing through the bolt axis of FIG. FIG. 2 is a view corresponding to FIG. 2 when the fixture of the present invention is directly attached to the flange. It is a figure corresponding to FIG. 2 which shows the modification example of the fixture of this invention. It is a side view of the main part which shows the different mounting method of an auxiliary member.

Next, the present invention will be described in more detail with reference to the accompanying drawings as appropriate.
As shown in FIGS. 1 to 6, the panel fixture 1 according to the present invention includes a spring member 20, a female screw member 30, a bolt 40, and an auxiliary member 50 if necessary. Further, in the examples of FIGS. 1 and 2, the support column 100 for fixing the panel 200 has, for example, a vertical direction in the z direction, and has a pair of flanges 101 and 101 at both ends of the web 102, and these have a U-shaped cross section. Form. Further, the columns 100 are arranged so that the web 102 faces each other at a distance slightly larger than the width direction of the panel 200, and as a result, the U-shaped cross-sections face each other. The panel 200 is inserted and installed between the opposed columns 100. The panel 200 is a panel for sound absorption or soundproofing, and although not shown, the panel 200 is a plate material in which a large number of holes and slits are formed on the sound source side, a sound absorbing material is housed inside, and the opposite side is sealed. Often. The panel 200 partitions a railroad track, a road, or the like, and needs to be installed and fixed by strong and reliable pressure welding of the spring member 20, and the present invention has been made to achieve this.

In the present embodiment, the clearance between the flange 101 and the surface of the panel 200 is smaller than that of the spring member 20, and therefore, the panel fixture 1 including the auxiliary member 50 is provided. In this auxiliary member, the fixing bolts 52 are passed through the two through holes 51a and 51a formed in the plate-shaped auxiliary member main body 51 and the two through holes 101a and 101a formed in the flange 101, respectively, and tightened with the locking nut 53. As a result, it is fixed to the flange 101.

The spring member 20 includes a spring portion 21 that fixes the panel 200 by substantially elastic deformation, a holding portion 23 that is held by the auxiliary member main body 51 or a flange, and a connecting portion 22 that connects them. The spring portion 21 has a contact portion 21a that contacts the panel 200 at a corner, a flat portion 21b having a locking portion 21c as a through hole, and a bending portion 21d that connects them. On the other hand, the bolt 40 is composed of a head 41 for tightening with a spanner or the like, an intermediate threaded portion 42, and a conical pointed portion 43 at the tip, and the pointed portion 43 rotates to a locking portion as a through hole. It fits freely.

The holding portion 23 has a U-shape in a side view, and in a state where the female screw member 30 is fixed to the lower portion, the holding portion 23 is temporarily fixed to the auxiliary member main body 51 fixed to the flange by elastic deformation of the tightening of the holding portion. The female screw member 30 is formed by fixing a loosening prevention nut 31 having a female screw portion 31a and a loosening prevention portion 31b to a clip 32 by welding or the like. The clip 32 includes a plate-shaped portion 32a, a folded-back portion 32b, and a back plate-shaped portion 32e having a guide portion 32c for increasing the surface area at the time of contact with the holding portion and making it slidable. A holding portion 32f is formed on the surface.

As shown in FIG. 5, through holes indicated by reference numerals 23a, 23a, 51a, and 32d (upper side) in the holding portion 23, the auxiliary member main body 51, and the clip 32 are larger than the screw portion 42 of the bolt 40. It is formed so that the bolt 40 can be displaced in the longitudinal orthogonal direction with respect to these through holes. When the bolt 40 is tightened from the position of the head 41'and moves to the reference numeral 41, the spring portion 21'also moves to the position of the reference numeral 21. At this time, the threaded portion 42 of the bolt 40 is screwed with the female threaded portion 31a so that the sharpened portion 43 protrudes downward, compresses the flat portion 21b, and elastically deforms the spring portion 21. At this time, since the spring member 20 is cantilevered at the connecting portion, the horizontal position of the holding portion 23 with respect to the through hole 23a may change, but the locking nut 31 directly contacts the holding portion 23 in a small area. In order to disperse the contact resistance over a wide area and make contact with the plate-shaped portion 32a, the direction perpendicular to the screw axis of the female screw portion 31a (same as the screw axis of the bolt 40) (hereinafter, "screw axis"). Relative movement in the "orthogonal direction"). As a result, the tension between the female screw portion 31a and the pointed portion 43 in the direction orthogonal to the screw axis is relaxed, and the rotational torque of the bolt 40 reflects the elastic deformation of the spring portion 21. .. Therefore, if the bolt 40 is tightened with an appropriate torque, an appropriate elastic deformation of the spring portion 21 occurs, and the panel 200 is fixed between the flange and the auxiliary member 50 with an appropriate pressure. Moreover, this fixed state is maintained by the loosening prevention portion 31b of the loosening prevention nut.

At the time of construction, a through hole 51a is formed in the flange 101, and the auxiliary member main body 51 is fixed by the fixing bolt 52 and the locking nut 53. Next, the clip 32 of the female screw member 30 is sandwiched between the lower portion of the holding portion 23 using the guiding portion 32c and inserted into the holding portion 32f. Then, the holding portion 32 is inserted into the auxiliary member main body 51, the through holes 23a, 23a, 51a, 32d, and 32d are penetrated, and the bolt 40 is screwed into the locking nut and tightened. The sharp portion 43 of the bolt 40 fits into the locking portion 21c which is a through hole, and further pushes down the flat portion. The female screw member 30 moves relatively minutely with respect to the holding portion 23 and the auxiliary member main body 51 in the direction orthogonal to the screw axis, and does not hinder the rotation of the bolt 40. Then, torque the bolt 40 until it reaches the proper torque. Tighten with a spanner etc. to complete the installation. By such a construction procedure, even if the bolt protrusion amount s changes, if the spring portion thickness t is maintained constant, an appropriate pressing pressure can be applied.

The possibilities of other embodiments of the present invention are described below. The same members as those in the above embodiment are designated by the same reference numerals.

In FIG. 6, the through hole 101b is formed in the flange 101 and the panel fixture 1 is attached without using the auxiliary member main body 51. The clearance between the through hole 101b and the other through hole described above and the threaded portion 42 is the same as described above.

In FIG. 7, the holding portion 32f'of the clip 32 is wider in the vertical direction than in the above embodiment, the back plate-shaped portion 32e'32e'has a slit 32g, for example, and the portions inserted from above and below the holding portion 23 are different.

FIG. 8 is different in that the female screw member 55 composed of the locking nut 53 having the clip 54 fixed to the flange is used prior to the attachment of the auxiliary member main body 51 to the flange 101. In this embodiment, the clip 54 has a plate-shaped portion 54a, a folded-back portion 54b, an induction portion 54c, a through hole 54d, a back plate-shaped portion 54e, and a holding portion 54f, and is temporarily fixed to the flange by the holding portion 54f. This is convenient because the auxiliary member 50 can be attached without dropping the lock nut 53.

In addition, the present invention can be appropriately modified without departing from the spirit of the present invention.

The present invention can be used, for example, as soundproofing or sound absorbing for railways, bullet trains, highways, general roads, factory facilities, etc., as a fixture for panels other than these purposes, and as a method for installing the panel.

1: Panel fixture, 20: Spring member, 21: Spring part, 21a: Contact part, 21b: Flat part, 21c: Locking part, 21d: Bending part, 22: Connecting part, 23: Holding part, 23a : Through hole, 30: Female thread member, 31: Loosening prevention nut, 31a: Female thread part, 31b: Loosening prevention part, 32: Clip, 32a: Plate-shaped part, 32b: Folded part, 32c: Induction part, 32d: Through hole , 32e, 32e': Back plate-like part, 32f, 32f': Holding part, 32g: Slit, 40: Bolt, 41: Head, 42: Threaded part, 43: Pointed part, 50: Auxiliary member, 51: Auxiliary Member body, 51a: Through hole, 52: Fixing bolt, 53: Loosening prevention nut, 54: Clip, 54a: Plate-shaped part, 54b: Folded part, 54c: Induction part, 54d: Through hole, 54e: Back plate-shaped part , 54f: Holding part, 55: Female thread member, 100: Strut, 101: Flange, 101a, 101b: Through hole, 102: Web, 200: Panel, s: Bolt protrusion amount, t: Spring part thickness, x: Panel Width direction, y: panel thickness direction, z: upward direction (vertical direction), c: bolt center

Claims (7)

It is mounted between the panel and the U-shaped flange or the auxiliary member mounted on the U-shaped flange in order to fix the sound absorbing or soundproofing panel inserted between the columns facing the U-shaped cross section. It has a spring member having a bent spring portion and a band-shaped member bent and formed, a female screw member having a female screw portion, and a bolt that is screwed into the female screw member and abuts on the spring portion. A panel fixture that presses and fixes the panel to the U-shaped portion by force.
The bolt has a pointed portion at the tip, the sharpened portion is inserted into a locking portion formed in the spring portion, and the female threaded portion is placed on the spring portion side of a through hole formed in the flange or the auxiliary member. A female screw member is provided so as to be slidable in a direction orthogonal to the screw axis, and the female screw member has a locking nut having a female screw portion, and the pointed portion of the bolt is screwed with the female screw portion. A panel fixture that protrudes toward the spring and can adjust the elastic force. The panel fixture according to claim 1, wherein the female screw member includes a plate-shaped portion that receives the lock nut and further contacts the spring member in a wider area than the nut. The spring member has a holding portion held by the flange or the auxiliary member and a connecting portion connecting the spring portion and the holding portion, and the spring portion cantilevered via the holding portion and the connecting portion. The panel fixture according to claim 2, wherein the female screw member is supported in a shape, and the female screw member has the plate-shaped portion and has a clip portion that can be engaged with the holding portion. The spring portion includes a flat portion on which the locking portion is formed, a contact portion that contacts the panel at a bent angle, and a bent portion that connects the flat portion and the contact portion. The panel fixture according to any one of Items 1 to 3. The panel fixture according to any one of claims 1 to 3, further comprising the auxiliary member provided with the through hole. The panel fixture according to claim 5, wherein the auxiliary member includes a flange provided with the through hole, a clip portion engaged with the holding portion, and a nut screwed with the through hole. The method for installing a panel using the panel fixture according to claim 3, wherein the spring member is held by the flange or the auxiliary member fixed to the flange by the holding portion, and the clip portion is attached to the holding portion. Holds the female screw member, penetrates the through hole, screwes the bolt into the female screw portion, and tightens the bolt to engage the sharp portion with the engaging portion and press the spring portion against the panel. , A method of installing a panel that tightens the bolt until a predetermined torque is reached.

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