JP4540566B2 - Bonding structure of strip material - Google Patents

Description

  According to the present invention, a plurality of strip plate members each having a protruding edge formed at a right angle on the back side of one side of the strip plate portion and a holding groove formed on the back side of the other side, It is related with the joining structure of the strip | belt-plate material which clamps the protruding edge of and clamps.

  In general, a large plate-like body having a flat surface, such as a sign board or a bulletin board, is constituted by a single large plate or a composite plate obtained by joining small plates. In the case of a single plate, there is no unevenness on the surface, and even if a printing film or the like is pasted thereon, the finish is beautiful because it is an integral continuous surface. On the other hand, since the strength of a single plate is often secured by the plate thickness, a high-strength plate is expensive. On the other hand, in the case of a composite plate, the unit price is low, and the strength can be ensured not by the plate thickness but by ribs, so that the overall cost can be kept low. On the other hand, because the composite board is composed of multiple plates joined together, it is easy for irregularities to appear between adjacent plates, and when a printed material is pasted, irregularities occur at the boundary between the plates, and the beauty of the printed material itself is beautiful. There is a problem that will be damaged.

  However, although the composite plate has the above disadvantages, the cost is low, no large equipment is required, and the overall size can be freely adjusted. In order to form a large plate having a flat surface, a composite plate having a plate-like body with less unevenness is desired for reasons such as being economical.

  Conventionally, as a structure for joining strip materials, a bottom portion having a substantially inverted J shape is formed at one end of the strip material, and a substantially V shape is formed at the tip of the above-described shell at the other end. A method for joining a band plate material by forming a seam portion on which a bent piece is attached and then overlapping and crushing the both seam portions is known from, for example, Patent Document 1, and the band plate material to be joined is also known. A first fitting piece is provided at one side end, a second fitting piece that holds the first fitting piece is provided at the other side end, and after fitting these fitting pieces, both companies contact each other. For example, Patent Document 2 discloses a technique in which a screw is tightened into a hole provided in a portion so that the strips are brought into close contact with each other.

However, in the case of the above-described crushed joint, the surface of the strip plate material cannot be made uniform at the time of joining, so that a step is inevitably generated on the surface, and the joining surface of the strip plate material is like a single plate. That cannot be used for joining a display panel or the like that is required to be flush with each other, and those that are fitted with the first and second fitting bodies and are crimped by tightening the screws are screws. In addition, it is difficult to obtain a sufficient crimping force, and there is a problem that if the screw is loosened due to vibration or impact, a gap is likely to be formed at the joint.
Japanese Patent Laid-Open No. 3-221655 No. 7-17846

  The present invention solves the above-mentioned problems, and can easily and quickly perform strong bonding of a band plate material having the same surface, and does not cause loosening or disconnection due to vibration or impact. It is an object of the present invention to provide a joint structure.

  In order to solve the above-mentioned problems, the joining structure of the strip material according to the present invention employs the following configuration.

The invention according to claim 1 is an extruded profile strip made of extruded profile material having protrusions formed at right angles on the back sides of both sides of the strip plate portion, and an extruded profile strip made of sandwiched grooves on both sides of the strip plate section. The plate material is joined by caulking and fixing the outer groove wall of the holding groove in a state where the protruding edge of one band plate material is inserted into the holding groove of the other adjacent band plate material , A detent that prevents the outer groove wall from returning is formed at the end of the band plate on the protruding edge side, so that when the outer groove wall is bent inward, the outer groove wall The tip of the guide is guided along the guide surface of the detent, enters the inside of the detent, and is caulked to the protruding edge .

  According to a second aspect of the present invention, a concave groove is formed on the outer surface of the protruding edge, and a concave strip portion is formed on the upper and lower portions of the concave groove on the inner surface, and on the inner surface of the groove wall inside the clamping groove. Is formed with a fitting convex portion that fits into the concave groove of the protruding edge, and formed with a convex portion that can be engaged with the concave groove portion of the protruding edge on the inner surface of the outer groove wall. .

The invention according to claim 3 is characterized in that a guide portion for guiding the tip of the protruding edge is formed at the groove bottom of the clamping groove.

The invention according to claim 4 is characterized in that a thin portion is formed at the base portion of the groove wall outside the clamping groove.

In the invention according to claim 5 , the groove wall on the outer side of the sandwiching groove of one of the adjacent band plates is caulked with the protruding edge of the other band plate inserted therein, and then the band plate The groove wall outside the holding groove is caulked with a punch convex portion.

According to a sixth aspect of the present invention, a concave portion facing each other is formed at the base portion of the outer surface of the groove wall inside the clamping groove and the base portion of the outer surface of the protruding edge, and the groove wall is formed on the surface side of the concave portion. The protruding edge is in close contact, and a slight gap is formed between the groove wall and the protruding edge on the back side of the holding groove from the recess.

The invention according to claim 7 is characterized in that an extruded strip member made of extruded resin having a protruding edge formed at right angles on the back sides of both sides of the strip plate portion is molded by a synthetic resin extruded member.

  According to the first aspect of the present invention, the groove wall on the outside of the holding groove formed on one band plate material is opened in advance, and the projecting edge formed on the other band plate material is inserted into the holding groove so as to form the groove wall. The band plate material can be easily and quickly joined by caulking with closing. In this way, the adjacent band plates are in close contact with each other because they are joined by caulking. Therefore, adjacent strip materials can be strongly bonded, and a board having a surface state like a single plate can be manufactured. Also, various types of boards can be produced depending on the number of strips.

  In addition, since the extruded shape can be formed symmetrically, distortion and deformation are difficult to occur when extruded, and flatness is easily obtained.

  Further, when the outer groove wall is caulked and closed, it cannot be returned to the original open state by the detent, so that the joined state is maintained well.

  According to the second aspect of the present invention, since the fitting convex portion that fits into the concave groove is formed in the concave groove on the outer side surface of the protruding edge, the positions of the joined band plate portions are set to each other. It is definitely decided and will be the same. In addition, since the two ridges of the protruding edge are formed above and below the groove, when the outer groove wall is caulked, the ridge strongly presses against the groove. As a result, the bonding becomes strong.

According to the third aspect of the present invention, when the protruding edge is inserted into the groove of the holding groove, the leading edge of the protruding edge is guided by the guide portion and positioned at a predetermined position, so that the protruding edge fluctuates in the holding groove. It is possible to ensure the flushness between adjacent strips.

According to the fourth aspect of the present invention, when the outer groove wall is caulked, the caulking operation is stabilized because the outer wall is always bent from the thin wall portion.

According to the invention which concerns on Claim 5 , the groove wall of the outer side of the clamping groove | channel of one strip | belt-plate material among adjacent strip | belt-plate materials is crimped in the state in which the protruding edge of the other strip | belt-plate material was inserted, Then, the said strip | belt Since the groove wall on the outer side of the sandwiching groove of the plate material is caulked by the punch convex portion, the joint portion does not come off even if a force from the longitudinal direction is applied to the joint portion.

According to the sixth aspect of the present invention, since a slight gap is formed between the outer groove wall and the projecting edge on the back side of the holding groove from the recess, the groove wall and the projecting edge on the surface side from the recess. Is strongly adhered, and the surface uniformity of the joined strips can be made more reliable.

According to the invention which concerns on Claim 7 , since the strip | belt board material which formed the protrusion on the back side is a direction which receives crimping, it does not need to be a metal. Since it can be molded by a synthetic resin extruded shape, the whole can be reduced in weight, and the texture is different. Therefore, an unprecedented design effect can be obtained. In addition, when the band plate material is transparent or semi-transparent, the back side or the inside of the structure formed by joining can be brightened, and the synthetic resin is also excellent in heat insulation, so a structure that requires a heat insulation effect Can be used for

  Hereinafter, an embodiment of a joining structure of strip materials according to the present invention will be described.

  FIG. 1 is an explanatory view at the start of the joining of the strip plate material in the joining structure of the strip plate material, and FIG. 2 is an explanatory view of the joining structure after the joining of the strip plate material is completed.

  The above-mentioned joining structure is obtained by joining two types of strip plate material a and strip plate material b shown in FIG. 4, and the strip plate material a is made of aluminum or the like in which protruding edges 2 are formed at right angles on both sides of the strip plate portion 1. Extruded shape. The band plate material b is an extruded shape member such as aluminum in which the holding grooves 3 are formed on both sides of the band plate portion 1. The clamping groove is opened to the front side, and the outer groove wall is open to the outside.

  Fine irregularities 4 are formed in a striped pattern on the surface of the band plate portion 1, and a pair of ribs 5 having a bowl shape are formed opposite to each other on the back side. A bolt head can be inserted into a groove formed by a pair of ribs 5 (not shown), and the strips a and b can be attached to the base.

  As shown in FIG. 1, a concave groove 6 is formed on the outer surface of the protruding edge 2, and two upper and lower concave ridge portions 7 are formed on the inner surface. These two groove portions 7 are formed at positions above and below the groove 6. Further, a detent protrusion 8 is formed at the end of the band plate 1 on the protruding edge 2 side.

  Next, the clamping groove 3 is composed of an outer groove wall 3a, an inner groove wall 3b, and a groove bottom 3c. On the inner surface of the inner groove wall 3b, a fitting convex portion 10 that fits into the concave groove 6 of the protruding edge 2 is formed. Further, on the inner surface of the outer groove wall 3a, two ridges 11 that can be engaged with the ridges 7 of the protrusion 2 are formed. Further, a thin portion 12 is formed in a V shape at the base of the outer groove wall 3a. A guide portion 13 for guiding the tip of the protruding edge 2 is formed on the groove bottom 3c.

  The outer groove wall 3a is formed so as to be inclined with respect to the inner groove wall 3b at the time of extrusion molding so that the holding groove 3 is opened.

  By the way, a concave portion 14 is formed in the base portion of the outer surface of the groove wall 3b inside the holding groove 3 and the base portion of the outer surface of the protruding edge 2 so as to face each other. The groove wall and the projecting edge 2 are in close contact with each other on the surface side of the recess 14, and a slight gap 15 is formed between the groove wall and the projecting edge 2 on the inner side of the holding groove 3 with respect to the recess 14. It is configured as follows.

  Next, when joining the strip plate materials a and b having the above-described configuration, as shown in FIG. 1, the protruding edge 2 of one strip plate material a is inserted into the holding groove 3 of the other strip plate material b. At this time, the tip of the projecting edge 2 is guided to a position close to the inner groove wall 3b by the guide portion 13 of the groove bottom 3c, and the fitting convex portion 10 and the concave groove 6 are fitted. Therefore, when the outer groove wall 3a is bent inward by a caulking device (not shown), the outer groove wall 3a bends from the thin portion 12 as shown in FIG. While being guided along the surface 9 and entering the inside of the detent protrusion 8, it is strongly caulked to the protruding edge 2. At this time, the ridge 11 of the outer groove wall 3 a engages with the ridge 7 of the protruding edge 2. In the same manner, a sign board as shown in FIG. 5 can be obtained by joining the other strips a and b. Furthermore, as shown in FIG. 3, by caulking the vicinity of the central portion of the groove wall 3a from the outside of the outer groove wall 3a with the punch convex portion 17 or the like, it is strongly applied even if a force from the longitudinal direction is applied to the joint portion. Since it is crimped, a junction part does not come off.

  As described above, the outer groove wall 3a of the holding groove 3 formed in one band plate material b is opened in advance, the protruding edge 2 of the other band plate material a is inserted, and the groove wall is closed to be caulked. Thus, the strips a and b can be joined easily and quickly.

  Since the two strips a and b are joined by caulking, the adjacent strips a and b are in close contact with each other. Further, the concave groove 6 on the outer side surface of the protruding edge 2 of one strip plate material a and the fitting convex portion 10 of the other strip plate material b are fitted, and the concave strip portion 7 of one strip plate material a and the other Since the strips 11 of the strip plate material b are engaged with each other, both the strip plate materials a and b are correctly positioned, so that the strip plate materials a and b are held flush. Therefore, a board having a surface state like a single plate can be manufactured. Various boards can be manufactured depending on the number of strips a and b.

  In addition, since the concave groove 6 is formed on the outer surface of the projecting edge 2 and the fitting convex portion 10 that fits into the concave groove 6 is formed on the holding groove 3, the positions of the joined band plate portions can be reliably ensured. It is decided and is the same.

  In addition, since the ridges 11 and the ridges 7 are engaged with each other and caulking is performed, the two strips a and b are firmly engaged and can be joined even when subjected to vibration or impact. No loosening or disengagement. Moreover, since the two groove portions 7 of the projecting edge 2 are formed at positions above and below the groove 6, when the outer groove wall 3 a is caulked, the ridge portion 11 of this groove wall is formed. Is strongly pressed by the concave ridge portion 7, so that the bonding becomes strong.

  Furthermore, when the outer groove wall 3a is caulked and closed, it cannot return to the original open state by the detent protrusion 8, so that the joined state is maintained well.

  Further, when the protruding edge 2 is inserted into the groove of the holding groove 3, the tip of the protruding edge 2 is guided by the guide portion 13 and positioned at a predetermined position, so that the protruding edge 2 is idle in the holding groove 3. It is possible to ensure flushness between the adjacent strips a and b.

  Furthermore, when the outer groove wall 3a is caulked, the caulking operation is stabilized because it always bends from the thin portion 12.

  Moreover, since a slight gap 15 is formed between the inner groove wall 3b and the projecting edge 2 on the back side of the sandwiching groove 3 with respect to the recess 14, the groove is always on the surface side of the recess 14 when caulked. The wall and the projecting edge 2 are in close contact with each other, and the adjacent corner portions 16 of the strips a and b are strongly joined. For this reason, the surface uniformity of the strip plate materials a and b can be further ensured.

  On the other hand, when the groove wall 3b on the inner side of the holding groove 3 and the outer surface of the protruding edge 2 are in contact with each other, the molding error is small and deformation due to caulking is difficult to occur. If an error, an attachment error, and a caulking error are not taken into consideration, a gap is likely to be formed at a joint portion between the adjacent band plate materials a and b.

  In addition, when the fine unevenness | corrugation 4 is formed in the surface of the strip | belt board part 1, when a printed matter etc. are affixed on the said surface, since the back side of a printed matter is connected to the exterior by the said unevenness | corrugation 4, an air pocket can be made. Since there is no air, air does not swell and swell on a part of the surface of the attached printed matter, and a good finish can always be secured.

  Moreover, since the rib 5 for attaching the strip plate materials a and b to the base is formed on the back surface of the strip portion 1, the strip plate materials a and b can be easily attached to the base, and the strip plate material a, The deformation of b is effectively prevented.

  Furthermore, although the strip plate materials a and b are formed by an extruded profile, both the strip plate materials a and b can be formed symmetrically, so that they are not easily distorted or deformed when extruded, and are flat.

  In addition, since the strip | board board material a which formed the protrusion 2 in the back side is a direction which receives crimping, it does not need to be a metal. It can be molded by a synthetic resin extrusion. In this case, the overall weight can be reduced, and the texture is different, so that an unprecedented design effect can be obtained. Moreover, since the strip plate material a can be made transparent or translucent, the back side or the inside of the structure formed by joining can be brightened. In addition, since the synthetic resin is excellent in heat insulation, it is effective for a structure that requires a heat insulation effect.

  Note that the joining structure of the two strips a and b is not limited to the above example. Next, another embodiment is shown. The same members as those described above are denoted by the same reference numerals.

In FIG. 6, two concave and convex portions 7 are formed on the inner surface of the projecting edge 2, and two projecting strips that can be engaged with the concave section 7 of the projecting edge 2 on the inner surface of the outer groove wall 3a. The part 11 is formed. Also in this case, when the outer groove wall 3a is caulked, the ridge portion 11 of the groove wall 3a is strongly pressed against the groove portion 7, so that the bonding becomes strong.

  Next, FIG. 7 is an example of a form in which the protruding edge 2 is bent from the middle to form the groove 6. In this case, the structure becomes simple and the holding groove 3 can be formed shallow.

  FIG. 8 shows an example of a structure in which the concave grooves 6 are formed on both sides of the protruding edge 2 and the fitting convex portions 10 are formed on the inner surfaces of the inner and outer groove walls 3a and 3b of the holding groove 3. In this case, since the positional relationship between the projecting edge 2 and the holding groove 3 is firmly determined, strong flatness can be secured on the surfaces of the strips a and b.

  Next, in FIG. 9, a concave groove 6 inclined toward the tip is formed on the outer surface of the projecting edge 2, and the tip is bifurcated. Further, a guide convex portion 19 is formed on the inner side surface of the protruding edge 2.

  On the other hand, the inner surface of the inner groove wall 3b of the sandwiching groove 3 is formed with a fitting protrusion 10 that fits into the groove 6 obliquely projecting, and the groove bottom 3c is engaged between the two forks. Engaging projections 20 are formed. Furthermore, the protrusion 21 which protrudes inside is formed in the front-end | tip of the outer side groove wall 3a.

Next, when the band plate material a having the above configuration is joined, the protruding edge 2 of one band plate material a is inserted into the holding groove 3 of the other band plate material b. At this time, the fitting convex portion 10 and the concave groove 6 are fitted while moving obliquely with respect to the surface. And the engagement protrusion 20 of the groove bottom 3c engages between the front-end bifurcated portions of the protrusion 2. Therefore, when the outer groove wall 3a is bent inward by a caulking device (not shown), the outer groove wall 3a bends from the thin portion 12 and its tip moves to the inner side of the detent protrusion 8 and strongly caulks to the protruding edge 2. Attached. At this time, since the guide convex portion 19 of the projecting edge 2 engages with the projecting portion 21 of the outer groove wall 3a via the inclined surface 15, the guide convex portion 19 causes the projecting edge 2 to be pushed by the pressing force during caulking. The projection 21 is urged to move downward in the figure and the projection 21 itself is relatively urged to move upward in the figure, so that the fitting protrusion 10 is smoothly inserted into the groove 6. While sliding, the tip of the protrusion 21 is guided so as to enter the inside of the detent protrusion 8. At the same time, the engagement protrusion 20 on the groove bottom can be smoothly engaged between the forked portion of the protruding edge 2.

According to the joining structure having the above configuration, the two strips a and b are in close contact with each other. Further, the fitting between the concave groove 6 of the projecting edge 2 of one strip plate material a and the fitting convex portion 10 of the other strip plate material b , and the front end bifurcated portion of the projecting edge 2 and the engaging projection 20 of the groove bottom 3c. Since the strips a and b are correctly positioned by engagement or the like, the strips a and b are held flush.

It is explanatory drawing at the time of the joining start of a strip board material by the joining structure of a strip board material. It is explanatory drawing of the state which completed joining of the strip material. It is explanatory drawing which caulks the junction part of a strip | belt board material with a punch. It is a side view of a strip material. It is a perspective view of an example of the sign board which consists of a joining structure of a strip material. It is sectional drawing which shows other embodiment of the joining structure of a strip | belt board material. It is sectional drawing which shows other embodiment of the joining structure of a strip | belt board material. It is sectional drawing which shows another embodiment of the joining structure of a strip | belt board material. It is sectional drawing which shows another embodiment of the joining structure of a strip | belt board material.

a, b Band plate material 1 Band plate part 2 Projection edge 3 Clamping groove 3a Groove wall on the outside 6 Concave groove

Claims (7)

One strip of strip material made of extruded material that has a protruding edge formed at right angles on the back sides of both sides of the belt plate portion, and one of the strip material made of extruded material that has a holding groove open on the front side on both sides of the belt plate portion In the state in which the protruding edge of the band plate is inserted into the holding groove of the other adjacent band plate material, by crimping and fixing the outer groove wall of the holding groove, the edge of the band plate portion on the protruding edge side The outer groove wall is formed with a detent that prevents the outer groove wall from returning, so that when the outer groove wall is bent inward, the tip of the outer groove wall is guided by the detent. A band plate material joining structure characterized by being guided along a surface and entering the inside of the detent to be caulked to the protruding edge . A concave groove is formed on the outer surface of the protruding edge, and a concave portion is formed on the upper and lower portions of the concave groove on the inner surface.
A fitting convex portion that fits into the concave groove of the protruding edge is formed on the inner surface of the inner groove wall of the clamping groove, and the inner surface of the outer groove wall can be engaged with the concave groove portion of the protruding edge. The joining structure of the strip material according to claim 1, wherein a protruding portion is formed. The band plate material joining structure according to claim 1 or 2 , wherein a guide portion for guiding a tip of the protruding edge is formed at a groove bottom of the holding groove. The band plate material joining structure according to any one of claims 1 to 3 , wherein a thin portion is formed at a base portion of a groove wall outside the pinching groove. The groove wall outside the holding groove of one of the adjacent band plates is caulked with the protruding edge of the other band plate inserted, and then the groove wall outside the holding groove of the band plate but it is characterized by being caulked in the punch protrusion, the junction structure of the band plate according to any one of claims 1-4. The base of the outer surface of the groove wall inside the holding groove and the base of the outer surface of the projecting edge are formed with recesses that face each other, and the groove wall and the projecting edge are in close contact with each other on the surface side from the recess. The band plate material joining structure according to any one of claims 1 to 5 , wherein a slight gap is formed between the groove wall and the projecting edge on the deeper side of the clamping groove.   The joining structure of the strip | belt-plate material of Claim 1 which shape | molded the strip | belt-plate material made from the extruded shape material which formed the protruding edge at right angles on the back side of the both sides of the said strip | belt-plate part with the synthetic resin extrusion-shaped material.

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