JP2019018876A - Corner pad and manufacturing method of the same - Google Patents

Abstract

To provide a corner pad which can be manufactured easily at low cost by vacuum molding, which securely performs protection by being mounted at a corner portion of a building material easily, and which can safely perform conveyance and storage, and to provide a manufacturing method of the same.SOLUTION: A corner pad is a molded article comprising one sheet material and has side surfaces 22, 24, 26 for covering a sash 12 which is a mounted object. The side surfaces 22, 24, 26 include inside protrusions 32, 36, 40 protruding toward the sash 12. Tip surfaces 32a, 36a, 40a of the inside protrusions 32, 36, 40 come into contact with the sash 12 in a cushioning manner. The corner pad includes a protrusion 34 for groove inserted in groove parts 15, 17 of the sash 12, and a locking convex part 35 protruding laterally from a wall surface of the protrusion 34 for groove.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a corner pad that is attached to a corner portion of a sash that assembles building materials into a frame and protects the corner portion, and a manufacturing method thereof.

  Conventionally, there are various types of corner pads that protect corner portions during transportation and storage of sashes and the like. The corner protective material disclosed in Patent Document 1 and a fitting including the corner protective material are provided with an end piece portion addressed to two adjacent sides of the corner portion of the article, and a side addressed to the front and back surfaces of the corner portion of the article. A plurality of reinforcing supports, each of which has a side portion, the corner portion of the article is accommodated in a concave portion defined by the end piece portion and the side side portion, and is bent into a cross-sectional mountain shape on the inner surface of at least one end side portion. One part is provided so that the ridge part is along the longitudinal direction. The corner protective material is assembled from a single cardboard.

  Further, the corner pad disclosed in Patent Document 2 is a corner pad that is attached to a corner or a corner of a bundled article and has a substantially mountain-shaped tip surface made of a hard member. A buffer layer is formed and protected at a contact portion between the pad main body and the bundled article, and a concave portion or a convex portion for locking the rope is provided on the distal end surface. The hard member is a hard resin such as FRP, aluminum, iron, or a cast product. The buffer layer is provided by flocking, rubber sticking, or the like.

  Moreover, the protective material for window frames disclosed in Patent Document 3 has a plurality of plates that are continuous in the longitudinal direction along longitudinal valley fold lines that extend in the width direction, and each plate has a predetermined valley that extends in the longitudinal direction. A fold line and a mountain fold line are provided so as to be parallel to each other. The window frame protective material is made of synthetic resin, but may be corrugated paper or the like. When using, fold the window frame protective material based on the mountain fold line and valley fold line to create a shape along the sash rail ridge, then fold it along the vertical valley fold line to the corner of the sash Assemble along. This protective material for windows can be used as a cushioning material for packing by sandwiching between sashes of the same shape when transporting sashes, and avoiding contact with goods when using the sash as a loading / unloading outlet attached to a window frame It becomes a curing material.

JP 2003-261165 A JP-A-8-48368 JP 2011-152946 A

  In the case of the above-described background art, the corner protective material of Patent Document 1 is made of corrugated cardboard, and there is a problem that the corrugated cardboard is rubbed against the surface of the product and scratches are generated, and there is also a problem of strength reduction due to humidity and wetness with rain. The corner pad of Patent Document 2 has a complicated structure in which a buffer layer is attached to a hard member, which is expensive and has a complicated manufacturing process. The protective material for window frames of Patent Document 3 protects the inner surface of the corner portion of the sash, and does not consider protecting the outer surface against an impact received from the outside.

  In addition to the above-mentioned patent documents, foamed polystyrene corner pads are generally used. However, foamed polystyrene is vulnerable to long-distance transportation and may crack. In addition, since dust is attracted by static electricity, the product is likely to become dusty, and quality control becomes difficult.

  The present invention has been made in view of the above-mentioned problems of the background art, and can be easily manufactured at low cost by vacuum forming, and can be easily attached to the corner portion of the building material for reliable protection, transportation and storage. An object of the present invention is to provide a corner pad that can be safely performed and a method for manufacturing the corner pad.

  The present invention is a molded product made of a single sheet material, provided with a side surface that covers a building material to be attached, and provided with an inner protrusion projecting toward the building material on the side surface, It is a corner pad which the front end surface of a part contacts and protects against the said building material. The corner pad is a vacuum molded product. The corner pad is made of a synthetic resin having moderate rigidity and moderate elasticity. For example, polypropylene.

  The building material is a sash attached to a window frame, and the corner pad covers two surfaces forming the thickness of the sash, and a pair of rectangular side surfaces continuous at right angles to each other, and two surfaces intersecting the thickness direction of the sash A pair of side surfaces of a substantially right-angled triangle is provided, and is integrally formed in a cup shape on the four side surfaces, and is attached to the corner portion of the sash.

  The sash is provided with a groove portion into which a part of the window frame is fitted, the groove portion is provided with a flange portion protruding inward, and the corner pad has a groove protrusion to be inserted into the groove portion. And the latching convex part which protrudes to the side from the wall surface of the said protrusion for grooves is provided, and the said latching convex part is latched and attached to the said flange part.

  The corner pad is a portion other than the inner protrusion on the side surface of the corner pad, and is formed to slightly protrude outward as the center approaches the cup-shaped opening edge. Thereby, it is easy to nest, and when removing the nested corner pad, it is easily removed from the fitted corner pad of the same shape.

  Further, the present invention is a method in which a sheet material made of a synthetic resin is vacuum-formed, a side surface that covers the building material to be attached is provided, an inner protrusion that protrudes toward the building material is provided on the side surface, and the inner protrusion is provided. This is a method of manufacturing a corner pad in which the tip surface of the part is in contact with the building material in a shock-absorbing manner.

  The corner pad of the present invention and the manufacturing method thereof can be easily manufactured at low cost by vacuum forming, and can be easily attached to the corner portion of the building material for reliable protection, and can be transported and stored safely. Lightweight and thin, easy to handle. Moreover, it can latch in the groove part provided in the building material, and the efficiency of packing work is favorable.

It is the top view (a), front view (b), bottom view (c), and right side view (d) of the corner pad of one Embodiment of this invention. FIG. 2 is a vertical sectional view taken along line AA in FIG. 1. It is a front view which shows the accommodation state of the corner pad of this embodiment. It is a perspective view which shows the process of attaching the corner pad of this embodiment. It is a perspective view which shows the use condition of the corner pad of this embodiment. It is a perspective view which shows the use condition of the corner pad of this embodiment. It is a perspective view which shows the use condition of the corner pad of this embodiment. It is a perspective view which shows the use condition of the corner pad of this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show an embodiment of the present invention, and a corner pad 10 of this embodiment is a vacuum molded product made of one sheet material. The material is a synthetic resin having moderate rigidity and moderate elasticity, for example, polypropylene. Here, the attached object is a building material and is a sash 12 attached to a window frame.

  Here, the sash 12 will be described with reference to FIGS. The sash 12 is assembled into a rectangular frame by an upper collar 14, a lower collar 16, and a pair of vertical collars 18, and a glass plate 20 is fitted inside the frame. A groove portion 15 into which an upper rail of a window frame (not shown) is slidably inserted is provided on the upper surface 14 a of the upper collar 14. The groove portion 15 is formed along the longitudinal direction of the upper surface 14a and penetrates both end portions. On the inner side surface of the groove portion 15, a flange portion 15 a that protrudes inside the groove portion 15 is provided at a side edge portion adjacent to the upper surface 14 a of the upper collar 14. The flange portion 15a is provided over the entire length in the longitudinal direction of the groove portion 15 and reaches both end portions. Similarly, a groove portion 17 into which a lower rail of a window frame (not shown) is inserted is provided on the lower surface 16a of the lower rod 16 so as to penetrate both end portions along the longitudinal direction. Similarly, on the inner side surface of the groove portion 17, a flange portion 17 a that protrudes inward of the groove portion 17 is provided on a side edge portion adjacent to the lower surface 16 a of the lower collar 16. A sealing material 42 is attached to one of the surfaces 18b intersecting the thickness direction of the sash 12 on one of the pair of vertical rods 18. The sealing material 42 is made of rubber, and is a long member that is attached to the upper and lower ends along the longitudinal direction of the vertical rod 18, has a constant cross-sectional shape that intersects the longitudinal direction, and is perpendicular to the surface 18 b. A rectangle that rises.

  Next, the corner pad 10 will be described. As shown in FIGS. 1 and 2, the corner pad 10 has a substantially rectangular side surface 22 that is long in one direction, and a side surface that is connected to one end portion in the longitudinal direction of the side surface 22 and has the same shape as the side surface 22. 24 is provided. An angle 25 between the side surface 22 and the side surface 24 is approximately 90 °. The side edges 22a and 24a on both sides of the side surface 22 and the side surface 24 along the longitudinal direction are each provided with a pair of side surfaces 26 that are positioned substantially perpendicular to the side surfaces 22 and 24 on both sides. The side surface 26 is a substantially right triangle, and two sides sandwiching a substantially right angle corner are in contact with the side edges 22 a and 24 a of the side surface 22 and the side surface 24. The side surfaces 22 and 24 and the two side surfaces 26 are integrally formed in a cup shape. The remaining one side of the side surface 26 that does not sandwich the right-angled corner portion and the end portions 22b, 24b of the side surfaces 22, 24 opposite to the corner 25 continuously form a rectangular opening edge portion 28. The opening edge portion 28 is formed with a flange portion having a small width when the plate body is vacuum-formed. Note that the distance between the pair of side surfaces 26 is slightly longer than the thickness of the sash 12.

  Near the center of the side surface 22 is provided an inner protrusion 32 that protrudes toward the inside of the cup shape. The inner protrusion 32 is a rectangle that is long along the longitudinal direction of the side surface 22, and the most protruding tip surface 32 a is also formed long in parallel to the inner protrusion 32, and is a surface parallel to the side surface 22. Is formed. A groove protrusion 34 to be inserted into the groove portions 15 and 17 of the sash 12 is formed at the center of the distal end surface 32a. The groove protrusion 34 is formed to be thin and parallel to the longitudinal direction of the distal end surface 32a. The most projecting tip surface 34 a is also formed long and parallel to the groove projection 34, and is formed of a side surface 22 and a surface parallel to the tip surface 32 a of the inner projection 32. A pair of wall surfaces 34b on both sides in the longitudinal direction of the distal end surface 34a is provided with small locking projections 35 that protrude toward the outside of the groove projection 34. The locking convex portion 35 is provided at a position on the wall surface 34b in contact with the front end surface 34a, and is separated from the front end surface 32a of the inner projection 32 by a predetermined width. The separation length is set slightly longer than the thickness of the flange portions 15a and 17a of the groove portions 15 and 17 of the sash 12, and the flange portions 15a and 17a can be fitted. A pair of engaging projections 35 are provided at two locations along the longitudinal direction of the groove projection 34 so as to face the left and right wall surfaces 34b. The interval between the pair of locking projections 35 can be fitted into the grooves 15 and 17 of the sash 12, and is slightly longer than the interval between the flanges 15a and 17a. The inner protrusion 32 and the groove protrusion 34 are recessed when viewed from the outside of the corner pad 10.

  The side surface 24 is provided with an inner protrusion 36 that protrudes toward the inside of the cup shape. The inner protrusion 36 is a rectangle that is long along the longitudinal direction of the side surface 24, has the same width and the same amount of protrusion as the inner protrusion 32, and is slightly shorter in the longitudinal direction than the inner protrusion 32. The inner protrusion 32 starts from the vicinity of the corner 25 and reaches the end 22b, while the inner protrusion 36 starts from a position slightly away from the corner 25 and reaches the end 24b. The most protruding tip surface 36 a of the inner protrusion 36 is also formed long in parallel to the inner protrusion 36 and parallel to the side surface 24. The inner protrusion 36 is recessed when viewed from the outside of the corner pad 10.

  The side surface 26 is provided with a straight ridge line 38 that divides the angle 25 into approximately two equal parts. The ridge line 28 is bifurcated into a Y shape in the vicinity of about the middle of the length reaching the opening edge 28. The side surface 26 is slightly swollen so that the ridge line 38 projects outward. A triangular central portion 26 a that contacts the opening edge 28 inside the Y-shaped ridge line 38 of the side surface 26 is positioned at a right angle to the side surfaces 22 and 24. The portion of the side surface 26 other than the central portion 26 a becomes an inclined surface that protrudes outward as it approaches the ridge line 38.

  On the side surface 26, an inner protrusion 40 that protrudes toward the inside of the cup shape is provided to protrude from a portion adjacent to the side edge 22 a of the side surface 22. The inner protrusion 40 has a constant cross-sectional shape parallel to the side surface 26, a depth perpendicular to the side surface 26, and a constant cross-sectional shape that intersects the depth direction. The cross-sectional shape of the inner protrusion 40 parallel to the side surface 26 is a triangle, the longest side that coincides with the side edge 22a, and two short sides that are substantially the same length continuous to both ends of the long side. It is formed with. Of the two short sides, one is substantially parallel to the opening edge 28 and the other is substantially perpendicular to the opening edge 28. The most protruding front end surface 40 a of the inner protrusion 40 is parallel to the central portion 26 a of the side surface 26. The inner protrusions 40 are provided on the pair of side surfaces 26 so as to face each other, and the distance between the pair of tip surfaces 40a is set slightly smaller than the distance between the surfaces 18b intersecting the thickness direction of the vertical rod 18. ing.

  Next, the usage method of the corner pad 10 is demonstrated. As shown in FIG. 7, one corner pad 10 is attached to each of the four corner portions 12a, 12b, 12c, and 12d of the sash 12. For example, as shown in FIGS. 4 and 5, when attaching to the corner portion 12 a where the upper end 14 of the upper sash 12 of the sash 12 on the drawing and the vertical ridge 18 are connected, a side surface is formed on the upper surface 14 a of the upper ridge 14 of the sash 12. 22, the side surface 24 is brought into contact with the surface 18 a in the thickness direction of the vertical rod 18, and the side surface 26 is brought into contact with a pair of surfaces 18 b intersecting the surface 18 a of the vertical rod 18. The front end surface 32 a of the inner protrusion 32 of the side surface 22 abuts on the upper surface 14 a of the upper collar 14, the front end surface 36 a of the inner protrusion 36 of the side surface 24 abuts on the surface 18 a of the vertical rod 18, and the side surfaces 22, 24. Is separated from the upper rod 14 and the vertical rod 18 to form a buffer space W. Further, the top surface 40 a of the inner protrusion 40 of the side surface 26 is brought into contact with a surface 18 b intersecting the thickness direction of the vertical rod 18, and the side surface 26 is separated from the vertical rod 18 to form a buffer space W. In this manner, the buffer space W is continuously provided in both the horizontal direction and the vertical direction of the corner portion 12a.

  In addition, since the space | interval of the front end surface 40a of a pair of inner side protrusion 40 is set slightly narrower than the space | interval of the surface 18b which cross | intersects the thickness direction of the vertical rod 18, the surface 18b of the vertical rod 18 is attached. It will be elastically deformed by being pushed by and will be pressed and fit. Further, the groove protrusion 34 of the inner protrusion 32 is pressed against the groove 15 of the upper collar 14. The interval between the locking projections 35 formed on the groove projection 34 is longer than the interval between the flange portions 15a of the groove portion 15 so that it does not pass through. However, when pressed with a strong force, the corner pad 10 is elastically deformed and the locking projections The interval of 35 becomes small and can pass. After passing through the flange portion 15 a, the elastic deformation is restored and inserted into the groove portion 15. The locking projection 35 cannot pass between the flange portions 15 a and is locked in the groove 15. When the groove portion 15 passes through the flange portion 15a and is elastically deformed, a click feeling is generated and it is confirmed that the groove portion 15 is locked.

  Next, as shown in FIGS. 6 and 8, the corner pad 10 is similarly attached to the corner portion 12 b on the opposite side of the corner portion 12 a where the upper right end portion of the upper collar 14 is connected to the vertical rod 18. A seal member 42 is attached to the vertical rod 18 where the corner portion 12b is located along a side edge portion of the surface 18b intersecting the thickness direction close to the surface 18a in the thickness direction. The sealing material 42 is a long member attached along the vertical rod 18 and is made of a synthetic resin that is flexible and has an appropriate rigidity. The sealing material 42 has a constant cross-sectional shape that intersects the longitudinal direction, and is a rectangle that protrudes outward from the surface 18b at a right angle.

  The direction of the corner pad 10 attached to the corner portion 12b is opposite to the left and right of the corner pad 10 with respect to the corner portion 12a. The surface 18b of the vertical rod 18 is covered with the side surface 26, the buffer space W is provided between the side surface 26 and the surface 18b, and the sealing material 42 does not contact the side surface 26. The inner protrusion 40 of the side surface 26 is provided in a triangular shape and is separated from the side surface 24 as it is away from the side surface 22, so that it abuts on the surface 18 b avoiding the sealing material 42. Since the sealing material 42 does not come into contact with the side surface 26, the sealing material 42 is not bent or wrinkled.

  As shown in FIG. 7, the corner pad 10 is also attached to the corner portions 12 c and 12 d of the lower end 16 of the sash 12. The top and bottom of the corner pad 10 are mounted opposite to the corner portions 12a and 12b, the side surface 22 is brought into contact with the lower surface 16a of the lower collar 16, and the groove protrusion 34 is inserted into the groove portion 17 provided on the lower surface 16a. The locking projection 35 is locked to the portion 17a.

  After the corner pad 10 is attached to the corner portions 12a, 12b, 12c, and 12d of the sash 12, a stretch film (not shown) is wound around the sash 12 so as to cover the corner pad 10. The winding method is arbitrary, for example, it winds along the upper collar 14 or the lower collar 16. The stretch film is a polyolefin-based resin, for example, made of polyethylene. The stretch film prevents the corner pad 10 from coming off and does not come off even when a strong force is applied from the outside.

  When the corner pad 10 becomes unnecessary due to the construction of the sash 12, etc., it can be easily detached by pulling the corner pad 10 and the stretch film away from the sash 12.

  Further, the corner pads 10 can be stacked in the same shape as shown in FIG. The tip surfaces 36a of the upper and lower inner projections 36 and the tip surfaces 32a of the inner projections 32 overlap with each other and do not overlap further, and the overlapping portion at this time is 85%. By stacking, a large amount of corner pads 10 can be efficiently transported and stored. Since the side surface 26 is provided with a ridge line 38 and the central portion 26a is located slightly outside and the opening edge portion 28 is widened, stacking is easy, and stacking is easy. Further, since the opening edge portion 28 is widened, the attachment to the sash 12 is easy.

  The corner pad 10 can be used, for example, up to a maximum mass of the sash 12 of about 40 kg, and the shape can be appropriately set according to the mass of the sash used.

  According to the corner pad 10 of this embodiment, it is inexpensive and easy to manufacture, can be easily attached to the corner portions 12a, 12b, 12c, and 12d of the sash 12, and can be reliably protected, and can be transported and stored safely. It can be carried out. Moreover, it attaches to the sash 12 elastically with the front end surface 40a of the inner side protrusion 40, and it fits, and there is no rattling. The corner pad 10 is attached in close contact, and absorbs vibrations received during transportation and shocks applied from the outside by bending the side faces 22, 24, 26 and the inner protrusions 32, 36, 40 of the corner pad 10. And can be held buffered. Since the sash 12 is held by the inner protrusions 32, 36, 40 and has a buffer space W between the side faces 22, 24, 26, the side faces 22, 24, Even if 26 is deformed, the sash 12 is not damaged and is safe. The corner pad 10 is made of polypropylene having moderate flexibility, has a smooth surface, and does not damage the surface of the sash 12. It is durable and will not be damaged even if it is subjected to vibration for a long time during long-time transportation. It is resistant to moisture and rain and will not be deformed or damaged. For this reason, it can be stored outdoors at a construction site or the like.

  Since the locking projections 35 are locked and attached to the flanges 15a and 17a of the existing grooves 15 and 17 provided in the sash 12, the stretch film can be wound by releasing hands and the workability is good. It is. Parts such as screws for attaching to the sash 12 are unnecessary, and the efficiency of the attaching operation is good. A click feeling is generated when the locking projection 35 is locked to the flange portions 15a and 17a, and it can be confirmed by touch that the locking projection 35 is locked.

  Since the corner pad 10 is lightweight and thin, it can be easily attached, transported, and stored, and is three-dimensionally integrally formed, so that an assembly process and tools are unnecessary. Since stacking is possible, it can be stored compactly. The shape of the corner pad 10 is such that the side 26 of the side 26 is located slightly outside by the ridge line 38 and the opening edge 28 is widened, so that it is easy to stack and unstack, and the work efficiency is good. It is. It is returnable, makes efficient use of resources, and can be returned in a compact form by stacking. It is possible to save the labor and cost of disposing of the corner pad 10 at the construction site. Further, the corner pad 10 can be applied only to the frame material of the sash 12 or in a state where the glass plate 20 is attached. If the corner portions have the same shape, the corner pad 10 having the same shape can be used for packaging regardless of the size of the sash 12.

  The corner pad 10 is made of an antistatic sheet made of polypropylene, so that static electricity does not occur, dust does not adhere even during long-term storage, and quality deterioration of the sash 12 due to dust can be prevented. It can be disposed of together with a stretch film made of polyethylene and can be easily disposed of. The ear portion 30 of the opening edge portion 28 is formed to be small, the number of alignment can be increased, and the manufacturing efficiency is good.

  In addition, the corner pad of this invention and its manufacturing method are not limited to the said embodiment, The shape of each side surface, the shape and number of each inner side protrusion, etc. can be changed suitably. The number and shape of the locking projections can be changed as appropriate according to the shape of the sash to be attached. In addition, the thickness and material of the plate to be vacuum formed can be selected as appropriate to adjust the strength, and even a sash having a large weight can be withstood. Smaller ones can be made thinner and lighter. As the material for the corner pad, various resins can be used in addition to polypropylene. It may be transparent or colored and opaque. Moreover, it can be used for various things such as doors, furniture, various plate members and bar members in addition to sashes. You may manufacture by injection molding etc. other than vacuum forming.

10 corner pad 12 sash 12a, 12b, 12c, 12d corner portion 15, 17 groove portion 15a, 17a flange portion 20 glass plate 22, 24, 26 side surface 26a central portion 28 opening edge portions 32, 36, 40 inner protrusions 32a, 36a , 40a Tip surface 34 Groove protrusion 35 Locking projection

Claims (6)

  A molded product made of a single sheet material, provided with a side surface that covers the building material to be attached, and provided with an inner protrusion projecting toward the building material on the side surface, and a front end surface of the inner protrusion A corner pad characterized in that the cushioning contacts and protects the building material.   The corner pad according to claim 1, wherein the corner pad is made of polypropylene.   The building material is a sash to be attached to a window frame, and the corner pad includes a pair of rectangular side surfaces covering two surfaces forming the thickness of the sash and perpendicular to each other, and two surfaces intersecting the thickness direction of the sash. The corner pad according to claim 1, wherein a pair of side surfaces of a substantially right-angled triangle is provided, the corner pads are integrally formed in a cup shape on four side surfaces, and are attached to corner portions of the sash.   The sash is provided with a groove part into which a part of the window frame is fitted, the groove part is provided with a flange part protruding inward, and the corner pad has a groove protrusion inserted into the groove part, The corner pad according to claim 1, wherein a locking projection that protrudes laterally from the wall surface of the groove projection is provided, and the locking projection is locked and attached to the flange portion.   4. A part of the side surface of the corner pad other than the inner projecting portion is formed so as to slightly protrude outward as the central portion approaches the cup-shaped opening edge, and a plurality of nestings are possible. The listed corner pad.   A sheet material made of synthetic resin is vacuum-formed, a side surface covering the building material to be attached is provided, an inner protrusion protruding toward the building material is provided on the side surface, and a tip surface of the inner protrusion is A method of manufacturing a corner pad for buffering and protecting the building material.

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