Extrusion profile connection structure

Abstract

To provide a connection structure of an extrusion shape whose connection strength is high and whose dimension accuracy of a connection position is high.SOLUTION: In a connection structure of an extrusion shape, an insertion part 10 formed at a first extrusion shape 100 is inserted in a receiving part 30 formed at a second extrusion shape 200, and the first, second extrusion shapes 100, 200 are connected with each other. The insertion part 10 rotates with respect to the receiving part 30 and is fitted in the receiving part 30. The insertion part 10 has an upper first flat surface 19 which does not rotationally slide with respect to the receiving part 30 when rotating. The receiving part 30 has an upper second flat surface 37 in which the insertion part 10 does not rotationally slide when rotating. By the upper first flat surface 19 coming into contact with the upper second flat surface 37 by the rotation, the insertion part 10 is fitted in the receiving part 30, and an adhesive agent 50 is coated on the upper first flat surface 19 beforehand.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a connection structure for extruded members that connects panel-shaped extruded members to each other. [Background technology]

[0002] A structure has been proposed in which an adhesive is applied to fitting portions of aluminum alloy extrusions to connect the extrusions together (see, for example, Patent Document 1).

[0003] Also, a connection structure has been proposed in which the joints of panel-shaped extruded shapes are fitted together while being rotated relative to one another. For example, a locking tongue piece of a fitting part of one extruded shape is fitted into an engagement groove of a fitting receiving part of the other extruded shape, and the other extruded shape is rotated around the center of rotation. Then, a fitting protuberance of the locking piece of the other extruded shape fits into a trapezoidal fitting recess of the one extruded shape, thereby connecting adjacent extruded shapes (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2000-328726 A [Patent Document 2] JP 2000-120217 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, there is a demand for improving the connection strength of extruded shapes. In the conventional technology described in Patent Document 1, when the extruded shapes are fitted together, the surface on which the adhesive is applied slides against the surface of the mating side. For this reason, the adhesive moves due to the sliding, causing unevenness in the thickness of the adhesive applied, which may result in a decrease in connection strength or a shift in the connection position. In addition, in the structure described in Patent Document 2, the fitting surfaces also slide against each other when fitting together, so even if a connection by adhesive and a connection by fitting are used together, there are cases in which a large adhesive strength cannot be obtained or a shift in the connection position occurs due to the movement of the adhesive.

[0006] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a connection structure for extruded members which has high connection strength and high dimensional accuracy at the connection position. [Means for solving the problem]

[0007] The connection structure of the extruded profile of the present invention is as follows: No. 1 Extrusion Profiles The first end of Insertion part formed in The second Extrusion Profiles The second end of Insert it into the receiving part formed in And the first one Extrusion Profiles and the second extrusion shape. connection do A connection structure for extruded profiles, The insertion portion includes a flat first upper arm protruding outward from the first end portion and a flat first lower arm having a shorter protruding length from the first end portion than the first upper arm, the receiving portion includes a flat second upper arm protruding outward from the second end portion and a flat second lower arm having a longer protruding length from the second end portion than the second upper arm, the first upper arm and the first lower arm are arranged to be fitted between the second upper arm and the second lower arm, the first upper arm includes a downwardly convex semi-cylindrical rotating engagement portion and a flat first tip portion extending outward from the rotating engagement portion, and the first tip portion defines an upper first flat surface. the first lower arm has an engagement claw protruding downward from a first lower tip portion, the second upper arm has a second flat surface on the lower side and a semicircular protrusion convex downwardly provided on the second upper tip portion, the second lower arm has a receiving seat provided on the second tip portion and protruding upward, the receiving seat has an upper receiving surface, the rotating engagement portion rotatably engages with an outer surface of the semicircular protrusion, the engagement claw engages with a second end side end of the receiving seat, the first upper arm rotates around the semicircular protrusion, the first flat surface of the first tip portion contacts the second flat surface of the second upper arm, and the lower surface of the first lower arm contacts the receiving surface of the second lower arm, The insertion portion is fitted into the receiving portion, and the first plane 、 The second plane , the lower surface of the first lower arm, or the receiving surface The adhesive is applied to the surface of the substrate in advance.

[0008] In this way, When fitting the plug into the receiver, The first plane and the second plane are pre-applied with adhesive. The underside or receiving surface of the first lower arm Since there is no rotational sliding, the first plane, the second plane, The underside or receiving surface of the first lower arm The adhesive applied to When fitting the plug into the receiver This prevents the adhesive from moving and prevents unevenness in the thickness of the adhesive, which allows the extruded profile to be connected with high connection strength and high dimensional accuracy at the connection position.

[0009] The present invention of In the connection structure for extruded profiles, when the insertion portion is inserted obliquely into the receiving portion, the first The upper arm and the first lower arm are connected to the second upper arm and the second lower arm.Facing the inclination when the rotational engagement portion rotatably engages with the outer surface of the semicircular protrusion, the engagement claw engages with the second end side end of the receiving seat, and the front insertion portion rotates to be parallel to the receiving portion, the first flat surface of the first tip portion contacts the second flat surface of the second upper arm, and the lower surface of the first lower arm contacts the receiving surface of the second lower arm, thereby fitting the insertion portion into the receiving portion, The first plane or the lower surface of the first lower arm The adhesive may be applied to the substrate in advance.

[0010] With this, the insert portion can be rotated and fitted to the receiving portion with a simple configuration, and the first flat surface on which the adhesive is applied in advance during rotation; or the lower surface of the first lower arm Since the roller can be configured not to rotate and slide, the adhesive can be prevented from moving during rotation.

[0011] In the connection structure of the extruded profile of the present invention, The first flat surface may have a first groove formed therein for storing the adhesive, and the receiving surface may have a second groove formed therein for storing the adhesive.

[0012] This results in the first plane, Or receiving surface Apply adhesive on top of the first plane until it touches the second plane after rotation. and until the underside of the first lower arm comes into contact with the receiving surface. It is possible to hold the connection securely, and a decrease in connection strength can be suppressed. Effect of the Invention

[0013] The present invention can provide a connection structure for extruded members having high connection strength and high dimensional accuracy at the connection position. [Brief description of the drawings]

[0014] [Figure 1] FIG. 11 is a cross-sectional view showing a joining structure of extruded shapes in an embodiment, illustrating a state in which an insertion portion of one extruded shape is obliquely inserted into a receiving portion of another extruded shape. [Diagram 2] 2 is a cross-sectional view showing a state in which one extruded shape member is rotated from the state shown in FIG. 1 and fitted into another extruded shape member. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, the joining structure of the first extruded shape material 100 and the second extruded shape material 200 will be described with reference to Figures 1 and 2. Figures 1 and 2 are cross-sectional views of the first extruded shape material 100 and the second extruded shape material 200 as viewed from the extrusion direction. In the following description, the top and bottom of the drawings refer to the upper and lower sides of the first and second extruded shape materials 100, 200, respectively, and the right and left of the drawings refer to the right and left sides of the first and second extruded shape materials 100, 200, respectively.

[0016] As shown in FIG. 1, the first extrusion 100 is a panel-like member made up of an upper plate 11, a lower plate 12, and a rib plate 13 connecting the upper plate 11 and the lower plate 12, and has an insertion portion 10 formed at one end, which is the left end. The second extrusion 200 is a panel-like member made up of an upper plate 31, a lower plate 32, and a rib plate 33 connecting the upper plate 31 and the lower plate 32, and has a receiving portion 30 formed at the other end, which is the right end. By inserting and engaging the insertion portion 10 of the first extrusion 100 into the receiving portion 30 of the second extrusion 200, the upper plate 11 and the lower plate 12 of the first extrusion 100 are connected to the upper plate 31 and the lower plate 32 of the second extrusion 200 so as to form the same surface, respectively, and form an integrated plate-like body such as, for example, a floor panel for a vehicle. Figure 2 shows two extruded profiles 100 and 200 fixed together, with the insertion portion 10 of the first extruded profile 100 inserted into the inside of the receiving portion 30 of the second extruded profile 200 and fixed therein.

[0017] As shown in FIG. 1, the receiving portion 30 of the second extrusion 200 is composed of an upper arm 36 and a lower arm 38. The upper arm 36 is composed of an upper arm body 34 of a plate-like member protruding outward (to the right in FIG. 1) from the upper plate 31, and a protrusion 35 that has a semicircular cross section and extends in the extrusion direction and is provided on the lower surface of the tip of the upper arm body 34. The upper surface of the upper arm body 34 is flush with the upper surface of the upper plate 31, and the lower surface of the upper arm body 34 forms a flat upper second plane 37. In this way, the upper arm 36 forms a receiving arm including the upper second plane 37 and the protrusion 35. The lower arm 38 is composed of a lower arm body 38a of a plate-like member protruding outward (to the right in FIG. 1) from the lower plate 32, and a receiving seat 39 provided on the upper surface of the tip of the lower arm body 38a. The receiving seat 39 is a protrusion that has a rectangular cross section and extends in the extrusion direction. The lower surface of the lower arm body 38a is flush with the lower surface of the lower plate 32, and the upper surface of the receiving seat 39 forms a flat second lower plane 39a. A tip surface 41 of the receiving seat 39 of the lower arm 38 protrudes outward (to the right in FIG. 1) beyond the protrusion 35 at the tip of the upper arm 36. In addition, a groove 40 for storing adhesive 50 is provided on the upper surface of the receiving seat 39.

[0018] Therefore, the lower second plane 39a, which is the upper surface of the receiving seat 39, forms the surface against which the tip of the engaging claw 22 of the lower arm 21 slides when the insertion portion 10 in Figure 1 rotates, and also forms an adhesive surface when the lower second plane 39a comes into contact with the lower first plane 21a of the lower arm 21 and the adhesive 50 spreads.

[0019] The insertion portion 10 of the first extrusion 100 is composed of an upper arm 18 and a lower arm 21. The upper arm 18 is composed of an upper arm body 14, a rotational engagement portion 15, and a tip portion 17. The upper arm body 14 is a plate-like member whose upper surface is flush with the upper surface of the upper plate 11 and protrudes outward (to the left in FIG. 1) from the upper plate 11. The rotational engagement portion 15 is a semi-cylindrical member formed on the tip side of the upper arm body 14, and its inner surface 16 forms a recess that rotatably engages with the outer surface of the protrusion 35 of the receiving portion 30 of the second extrusion 200. The tip portion 17 is a flat member that protrudes outward from the rotational engagement portion 15. The upper surface of the tip portion 17 forms a flat upper first plane 19 located lower than the upper plate 11 and the upper surface of the upper arm body 14 by the distance between the upper surface of the upper arm 36 of the second extrusion 200 and the upper second plane 37. The lower arm 21 is a plate-like member that protrudes from the outer surface of the rib plate 13 toward the outside (left side in FIG. 1), and an engagement claw 22 is formed at the tip. The lower surface of the lower arm 21 forms a flat lower first plane 21a located above the distance between the lower surface of the lower arm 38 of the second extrusion 200 and the lower second plane 39a. The vertical distance between the upper first plane 19 of the tip 17 of the upper arm 18 and the lower first plane 21a of the lower arm 21 is configured to be slightly larger than the distance between the upper second plane 37 of the upper arm 36 of the second extrusion 200 and the lower second plane 39a of the lower arm 38. Therefore, in the state of FIG. 2 where the insertion portion 10 is inserted into the receiving portion 30, the upper arm 36 and the lower arm 38 of the receiving portion 30 can firmly sandwich and fix the upper arm 18 and the lower arm 21 of the insertion portion 10.

[0020] Next, the process of connecting the insertion portion 10 of the first extrusion member 100 to the receiving portion 30 of the second extrusion member 200 will be described.

[0021] First, adhesive 50 is applied to the groove 20 provided on the first upper flat surface 19 of the insertion portion 10 of the first extrusion member 100 and to the groove 40 on the second lower flat surface 39a of the receiving portion 30 of the second extrusion member 200.

[0022] Next, the insert portion 10 of the first extrusion 100 is inserted obliquely into the receiving portion 30 of the second extrusion 200, and the inner surface 16 of the rotational engagement portion 15 of the upper arm 18 of the insert portion 10 is engaged with the outer surface of the protrusion 35 of the receiving portion 30. In addition, the tip of the engagement claw 22 of the lower arm 21 of the insert portion 10 is arranged so as to contact the upper side of the lower second plane 39a. At this time, the tip of the engagement claw 22 contacts the second extrusion 200 side of the groove 40 of the lower second plane 39a. In this state, the upper first plane 19 of the insert portion 10 faces the upper second plane 37 of the receiving portion 30 at an incline, and the lower first plane 21a of the insert portion 10 faces the lower second plane 39a of the receiving portion 30 at an incline.

[0023] When the first extrusion 100 is moved clockwise as indicated by the arrow 91 in FIG. 1, the rotational engagement portion 15 of the insertion portion 10 rotates and slides on the outer surface of the protrusion 35 of the receiving portion 30. The engagement claw 22 slides toward the second extrusion 200 on the portion of the lower second flat surface 39a to the left of the groove 40. Then, as shown in FIG. 2, the upper first flat surface 19 of the insertion portion 10 contacts the upper second flat surface 37 of the receiving portion 30, and at the same time, the lower first flat surface 21a of the insertion portion 10 contacts the lower second flat surface 39a of the receiving portion 30, and the engagement claw 22 of the insertion portion 10 engages with the left end of the receiving seat 39 of the receiving portion 30. The end surface 23 of the lower plate 12 of the insertion portion 10 contacts the tip surface 41 of the lower arm 38 of the receiving portion 30. As a result, the insertion portion 10 fits into the receiving portion 30. In this way, while the first extruded profile 100 is being rotated, the upper first flat surface 19 on which the adhesive 50 is applied does not rotate and slide, so the adhesive 50 does not move on the upper first flat surface 19. Also, the engaging claw 22 slides on the portion of the lower second flat surface 39a to the left of the groove 40, so the adhesive 50 applied to the groove 40 of the lower second flat surface 39a is not moved.

[0024] As described above, the distance in the vertical direction between the upper first plane 19 of the upper arm 18 and the lower first plane 21a of the lower arm 21 is configured to be slightly larger than the distance between the upper second plane 37 of the upper arm 36 and the lower second plane 39a of the lower arm 38. Therefore, the upper arm 18 and the lower arm 21 of the insertion part 10 urge the upper arm 36 and the lower arm 38 of the receiving part 30 in a direction to open them in the vertical direction. Due to this urging force, the upper first plane 19 of the insertion part 10 is pressed against the upper second plane 37 of the receiving part 30, and the adhesive 50 applied to the groove 20 spreads thinly and evenly between the upper first plane 19 and the upper second plane 37. Similarly, the lower first plane 21a of the insertion part 10 is pressed against the lower second plane 39a of the receiving part 30, and the adhesive 50 applied to the groove 40 spreads thinly and evenly between the lower first plane 21a and the lower second plane 39a.

[0025] The first extruded shape member 100 and the second extruded shape member 200 are maintained in a fitted state by the engagement between the protrusion 35 and the inner surface 16 of the rotational engagement portion 15, the engagement between the receiving seat 39 and the engagement claw 22, and the biasing force, and this state is maintained until the adhesive 50 hardens. Then, when the adhesive 50 hardens, the first extruded shape member 100 and the second extruded shape member 200 are firmly connected by the fitting force and adhesive force.

[0026] As described above, in the connection structure of the embodiment, the upper first plane 19 to which the adhesive 50 has been applied in advance does not slide during rotation, so the adhesive 50 applied in advance to the upper first plane 19 does not move during rotation, and it is possible to suppress the occurrence of unevenness in the thickness of the adhesive 50. This allows the first extruded profile 100 and the second extruded profile 200 to be connected with high connection strength and high dimensional accuracy at the connection position.

[0027] Furthermore, when the first extruded profile 100 rotates, the engaging claw 22 of the insertion portion 10 slides on the portion to the left of the groove 40 of the lower second flat surface 39a, so that the adhesive 50 applied to the groove 40 of the lower second flat surface 39a is not moved. This makes it possible to suppress the occurrence of unevenness in the thickness of the adhesive 50 applied to the lower second flat surface 39a when the engaging claw 22 moves, and to connect the first extruded profile 100 and the second extruded profile 200 with high connection strength and high dimensional accuracy at the connection position.

[0028] Furthermore, since the upper first plane 19, on which the adhesive 50 is applied in advance, and the lower second plane 39a are provided with grooves 20, 40 for storing the adhesive 50, the adhesive 50 can be reliably held until the upper first plane 19 and the lower first plane 21a come into contact with the upper second plane 37 and the lower second plane 39a, respectively. This allows the first extruded profile 100 and the second extruded profile 200 to be connected with high connection strength and high dimensional accuracy at the connection position.

[0029] In the above description, the adhesive 50 is applied in advance to the upper first plane 19, but this is not limiting, and the adhesive 50 may be applied in advance to the upper second plane 37 that does not slide when the first extruded profile 100 rotates. Also, the adhesive 50 may be applied in advance to the lower first plane 21a that does not slide on the lower second plane 39a when the first extruded profile 100 rotates.

[0030] Also, the adhesive 50 may be applied in advance to either or both of the upper first plane 19 and the upper second plane 37, and the adhesive 50 may not be applied in advance to the lower first plane 21a and the lower second plane 39a. [Explanation of symbols]

[0031] 10 insertion portion, 11, 31 upper plate, 12, 32 lower plate, 13, 33 rib plate, 14, 34 upper arm body, 15 rotating engagement portion, 16 inner surface, 17 tip portion, 18, 36 upper arm, 19 upper first flat surface, 20, 40 groove, 21, 38 lower arm, 21a lower first flat surface, 22 engagement claw, 23 end surface, 30 receiving portion, 35 protrusion, 37 upper second flat surface, 38a lower arm body, 39 receiving seat, 39a lower second flat surface, 41 tip surface, 50 adhesive, 100 first extrusion, 200 second extrusion.

Claims

1. A connection structure for extruded profiles, in which an insert portion formed at a first end of a first extruded profile is inserted into a receiving portion formed at a second end of a second extruded profile to connect the first extruded profile and the second extruded profile, the insertion portion includes a flat first upper arm protruding outward from the first end portion, and a flat first lower arm protruding from the first end portion by a shorter length than the first upper arm, the receiving portion includes a flat second upper arm protruding outward from the second end portion, and a flat second lower arm protruding from the second end portion by a longer length than the second upper arm, the first upper arm and the first lower arm are disposed to be fitted between the second upper arm and the second lower arm, the first upper arm includes a downwardly protruding semi-cylindrical rotation engagement portion and a flat first tip portion extending outward from the rotation engagement portion, the first tip portion having an upper first flat surface; the first lower arm includes an engagement claw protruding downward from a first lower tip portion, the second upper arm includes a second flat surface on the lower side and a downwardly convex semicircular protrusion provided at a second upper tip portion, the second lower arm includes a receiving seat provided at a second tip portion and protruding upward, the receiving seat having an upper receiving surface; the rotational engagement portion rotatably engages with the outer surface of the semicircular protrusion, the engagement claw engages with the second end side edge of the receiving seat, the first upper arm rotates around the semicircular protrusion, the first flat surface of the first tip portion comes into contact with the second flat surface of the second upper arm, and the lower surface of the first lower arm comes into contact with the receiving surface of the second lower arm, thereby fitting the insertion portion into the receiving portion, An adhesive is applied in advance to the first plane, the second plane, the lower surface of the first lower arm, or the receiving surface; A connection structure for extruded profiles, characterized by the above.

2. The connection structure of the extruded profile according to claim 1, When the insertion portion is inserted obliquely into the receiving portion, the first upper arm and the first lower arm face each other at an angle relative to the second upper arm and the second lower arm, the rotation engagement portion rotatably engages with an outer surface of the semicircular protrusion, and the engagement claw engages with an end of the receiving seat on the second end side, When the front insertion portion rotates so as to be parallel to the receiving portion, the first flat surface of the first tip portion contacts the second flat surface of the second upper arm, and the lower surface of the first lower arm contacts the receiving surface of the second lower arm, thereby fitting the insertion portion into the receiving portion, The adhesive is applied in advance to the first flat surface or a lower surface of the first lower arm; A connection structure for extruded profiles, characterized by the above.

3. The connection structure of the extruded profile according to claim 2, A first groove for storing the adhesive is formed in the first plane, a second groove for storing the adhesive is formed on the receiving surface; A connection structure for extruded profiles, characterized by the above.

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