JP3198706U - spacer - Google Patents

Abstract

The present invention provides a spacer that can be easily divided and has high compression resistance and impact resistance. A base 20 integrally formed of a foamable resin containing a foaming agent having a long and substantially rectangular cross section; an adhesive layer 30 provided on a back surface 22 of the base 20; The base material 20 is constituted by a release liner 40 attached to the adhesive layer 30, and the base material 20 has a high ratio of bubbles and a low density of the foamable resin, and covers the periphery of the core part 24. The front and back surfaces 21 and 22 and both side surfaces 23 and 23 of the base material 20 are formed by a coating layer 25 having a low bubble ratio and a high density of foamable resin. A plurality of V-shaped grooves formed by cutting are provided to face each other in the width direction. [Selection] Figure 2

Description

  The present invention relates to a spacer for interposing in a gap between a base material and an exterior material.

  Conventionally, when installing exterior materials, when fixing the exterior materials to the base material with nails or screws, spacers are used to adjust the height or unevenness by interposing the gap between them. As an example, a method using a foamable resin as disclosed in Patent Document 1 is known.

  The spacer described in Patent Document 1 is formed in a long plate shape by a hard foam obtained by foaming a foamable resin, and a plurality of V-shaped grooves perpendicular to the longitudinal direction are opposed to the front and back surfaces thereof. Is provided. Therefore, this spacer can be easily divided along an arbitrary groove, and a spacer having a length necessary for construction can be easily obtained.

  On the other hand, this type of spacer is fixed with a nail or a screw in a state of being interposed in the gap between the base material and the exterior material, and therefore, high compression resistance and impact resistance are required. It was.

Utility Model Registration No. 3147814

  In view of the above, a technical problem of the present invention is to provide a spacer that can be easily divided and has high compression resistance and impact resistance.

  In order to solve the above problems, according to the present invention, a spacer for interposing a gap between a base material and an exterior material, which has a long and substantially rectangular cross section, and includes a foaming agent. It is composed of a base material integrally formed of a foamable resin, an adhesive layer provided on the back surface of the base material, and a release liner attached to the adhesive layer. A core portion having a high density and a low density of the foamable resin, and covering the periphery of the core portion to form the front and back surfaces and both side surfaces of the base material, and a coating having a low ratio of bubbles and a high density of the foamable resin A plurality of V-shaped grooves formed by cutting off the bubbles are provided on the front and back surfaces of the base material so as to face each other in the width direction.

  The V-shaped groove is preferably composed of a first V-shaped groove provided on the front surface and a second V-shaped groove provided on the back surface and shallower than the first V-shaped groove.

  According to the present invention, the spacer has a core portion with a high ratio of bubbles and a low density of the foamable resin, and covers the periphery of the core portion to form the front and back surfaces and both side surfaces of the substrate, and the ratio of bubbles is low. And the V-shaped groove | channel comprised by the coating layer with a high density of foamable resin, and having cut off the bubble was provided in the front and back of a base material. Therefore, a spacer that can be easily divided and has high compression resistance and impact resistance can be obtained.

It is a perspective view which shows the spacer of embodiment of this invention. (A) is the cross-sectional enlarged view of the longitudinal direction of the spacer shown in FIG. 1, (b) is the cross-sectional enlarged view of the direction in alignment with the groove | channel of the spacer shown in FIG. (A) is a perspective view of a spacer piece divided along adjacent grooves, and (b) is a perspective view of a spacer piece divided into two grooves. It is a figure which shows the spacer piece interposed in the gap | interval between the trunk edge which is a base material, and exterior material. It is a figure explaining the manufacturing process of a spacer.

  Below, based on drawing, embodiment of the spacer which concerns on this invention is described. As shown in FIGS. 1 to 4, this spacer 1 is used for a gap 5 between a trunk edge 2 that is a base material and an exterior material 3, has a long and substantially rectangular cross section, and is foamed. A base material 20 integrally formed with a foamable resin containing an agent, an adhesive layer 30 provided on the back surface 22 of the base material 20, and a release liner 40 attached to the adhesive layer 30. ing.

  The base material 20 has a core portion 24 with a high ratio of bubbles and a low density of foamable resin, and covers the periphery of the core portion 24 so that the front and back surfaces 21 and 22 and both side surfaces 23 and 23 of the base material 20 are covered. And a coating layer 25 having a low bubble ratio and a high density of the foamable resin. The foamable resin used for the substrate 20 is more preferably an ABS resin such as polystyrene, ABS or AES, a resin such as high density or low density polyethylene, polypropylene, polyvinyl chloride, polycarbonate, or PET resin. Contains known foaming agents such as organic foaming agents such as DPT, ADCA and OBSH, or inorganic foaming agents such as carbonates, organic acid salts, metal soaps, and sodium hydrogencarbonate in high-strength polystyrene at low cost Things are used.

  A plurality of V-shaped grooves 50 formed by cutting off the bubbles are provided on the front and back surfaces 21 and 22 of the substrate 20 so as to face each other in the width direction. The V-shaped groove 50 includes a first V-shaped groove 51 provided on the front surface 21 and a second V-shaped groove 52 provided on the back surface 22 and formed shallower than the first V-shaped groove 51. The first V-shaped groove 51 and the second V-shaped groove 52 are cut to a depth shallower than the thickness of the coating layer 25. The first V-shaped groove 51 and the second V-shaped groove 52 can easily divide the base material 20 by applying a force along the arbitrary V-shaped groove 50, and extend along the V-shaped groove 50. It is formed so as not to be divided when no force is applied.

  In addition, a double-sided tape having a width substantially the same as the width of the base material 20 is used for the adhesive layer 30 and is cut at the position of the second V-shaped groove 52. Further, as the release liner 40, a release paper 40 having substantially the same width as the base material 20 and the adhesive layer 30 is used, and the release paper 40 is not cut at the position of the second V-shaped groove 52. .

  As described above, since the base material 20 can be easily divided even if a force is applied along any V-shaped groove 50, the size of the gap 5 formed between the trunk edge 2 and the exterior material 3 is large. The spacer side 1a having a size corresponding to the height can be easily obtained, and workability during construction can be improved. Moreover, since the 1st V-shaped groove | channel 51 provided in the surface 21 is formed deeper than the 2nd V-shaped groove | channel 52 provided in the back surface 22 which has stuck the release paper 40, the spacer 1 is made into release paper. It can divide from the surface 21 side where 40 is not stuck.

  Next, the usage method of the spacer piece 1a obtained by parting of the spacer 1 is demonstrated. The spacer piece 1a is used for the height adjustment and the unevenness adjustment by being used in the gap 5 formed between the trunk edge 2 and the exterior material 3 fixed to the trunk edge 2 by the metal fitting 6. Yes, it is temporarily installed using the double-sided tape 30 and fixed by the pressure of the nail 4 or the exterior material 3. At this time, the covering layer 25 of the spacer piece 1a, that is, the front and back surfaces 21 and 22, and the side surface 23 have a higher density of foamable resin than the core portion 24 and have a low bubble ratio, so It has compressibility and impact resistance, and can suppress deformation and breakage against compression and impact at the time of fixing with the nail 4.

  Next, the foamable resin that forms the substrate 20 will be described. This foamable resin is obtained by kneading the above resin such as polystyrene and the foaming agent with a screw while being melted by heating with a heating device such as a heater, and is extruded into an extrusion mold by the screw. The foamable resin starts to foam by heating, but the foaming is suppressed by receiving pressure from the extrusion mold.

  Next, when this foamable resin is extruded from the extrusion mold into the atmosphere, the foamable resin is released from the pressure of the extrusion mold, and the foamable resin is foamed. At this time, the foamable resin expands due to foaming. Next, the expanded foamable resin is conveyed to the sizing. Since the sizing carry-in port is narrower than the expanded foamable resin, the foamable resin is once compressed at the carry-in port. In addition, the sizing is provided with a cooling means using cooling water or the like, and the foaming resin is cooled by the cooling means, so that the shape and dimensions of the base material 20 formed in the sizing conveyance path are Retained.

  At this time, since the inside of the foamable resin, that is, the core portion 24 is not easily affected by the pressure from the sizing and the cooling means, the foaming in the sizing continues for a relatively long period of time. On the other hand, the outer side of the foamable resin, that is, the coating layer 25 of the base material 20 is compressed by receiving pressure from sizing and pressure generated by foaming of the core portion 24, and is further influenced by the cooling means, thereby sizing. The foaming inside is suppressed and the density becomes high. Further, since the bubbles formed in the base material 20 by the foaming are independent from each other, the base material 20 does not have water permeability and air permeability.

  Next, based on FIG. 5, the process of forming the spacer 1 from the base material 20 formed by sizing will be described. In the present embodiment, the step of forming the spacer 1 from the base material 20 is performed in a state where the upper surface is the back surface 22 and the lower side is the front surface 21. First, the double-sided tape 30 adhered to the release paper 40 is transferred by the roller 7 on the upper side of the base material 20 formed by sizing.

  In the next step, the front surface 21 and the back surface of the base material 20 using the notching machine 8 with the double-sided tape 30 attached to the back surface 22 of the base material 20 and the release paper 40 not attached to the back surface 22. 22 is notched. By this notching process, a plurality of first V-shaped grooves 51 and second V-shaped grooves 52 that are cut off of bubbles are formed on the front surface 21 and the back surface 22 of the substrate 20 so as to face each other. Cut at position. Then, in the next step, the release paper 40 is adhered to the back surface 22 of the base material 20, and the base material 20 is cut into a predetermined size by the cutter 9, thereby forming the spacer 1.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited thereto, and it goes without saying that various design changes can be made without departing from the gist of the present invention. For example, in the above-described embodiment, the spacer piece 1a is interposed in the gap 5 between the trunk edge 2 and the exterior material 3, but the present invention is not limited to the trunk edge, and other base materials may be used. Moreover, although the double-sided tape is used for the adhesive material layer 30, you may apply | coat an adhesive to the back surface 22 of the base material 20 instead of a double-sided tape. At this time, the adhesive may be applied either before or after the notching by the notching machine 8. Moreover, although release paper is used for the release liner 40, a film having easy peelability may be used instead of release paper. The first V-shaped groove 51 and the second V-shaped groove 52 are cut to a depth shallower than the thickness of the covering layer 25, but are cut to a depth deeper than the thickness of the covering layer 25. Also good. A screw or the like may be used instead of the nail 4 for fixing the spacer piece 1a to the trunk edge 2.

1 Spacer 1a Spacer piece 2 Base material (body edge)
3 exterior material 20 base material 21 surface 22 back surface 23 side surface 24 core part 25 coating layer 30 adhesive material layer (double-sided tape)
40 Release liner (release paper)
50 V-shaped groove 51 First V-shaped groove 52 Second V-shaped groove

Claims (2)

A spacer for interposing a gap between the base material and the exterior material,
A base material integrally formed of a foamable resin containing a foaming agent, having a long and substantially rectangular cross section, an adhesive layer provided on the back surface of the base material, and affixed to the adhesive layer Constituted by a release liner,
The base material has a core portion with a high ratio of bubbles and a low density of the foamable resin, and the front and back surfaces and both side surfaces of the base material are formed so as to cover the periphery of the core portion. It is constituted by a coating layer having a high density of the foamable resin,
A spacer characterized in that a plurality of V-shaped grooves formed by cutting off the bubbles are provided on the front and back surfaces of the base material so as to face each other in the width direction.   The said V-shaped groove | channel consists of the 1st V-shaped groove | channel provided in the said surface, and the 2nd V-shaped groove | channel provided in the said back surface and shallower than this 1st V-shaped groove | channel. spacer.

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