JP5566985B2 - Foam filler - Google Patents

Description

  The present invention relates to a foam filler that fills a hollow portion of a hollow structure with a foam.

  Conventionally, in order to fill a hollow part of a hollow structure with a foam, a foam filler in which a foamable member that foams and hardens by heating is supported on an attachment member is used (see Patent Document 1). The attachment member is provided with a fixing portion that is fixed to the hollow structure by engaging with a through-hole formed in the hollow structure. With such an attachment member, the foam filler disposed at a predetermined position of the hollow portion is heated together with the hollow structure. Thereby, foaming and hardening of a foamable member are started, and a foam is filled in the predetermined position of a hollow part. The hollow structure constitutes, for example, a part of the vehicle, and the foam is filled in the hollow portion, so that the generation of abnormal noise caused by air circulation in the hollow portion is suppressed, for example.

JP 2002-79955 A

  By the way, a plurality of fixing portions for fixing the mounting member to the hollow structure may be provided in consideration of, for example, stable fixing of the foam filler. In this case, a plurality of through holes are formed in advance in the hollow structure corresponding to the plurality of fixing portions. Here, for example, when the hollow structure is composed of a plurality of panels and the through holes are formed in the plurality of panels and the panels are assembled by welding or the like, the interval between the plurality of through holes is likely to vary depending on the assembling accuracy and the like. . As described above, since the intervals between the plurality of through holes formed in the hollow structure and the intervals between the plurality of fixing portions of the foam filler are different, it may be difficult to smoothly attach the foam filler. There is.

  This invention is made | formed in view of such a situation, and the objective is to provide the foaming filler which can be attached smoothly even if it is a case where it attaches to a hollow structure in several places.

  In order to achieve the above object, the invention described in claim 1 includes a foamable member that is foamed and cured by heating to become a foam, and an attachment member having heat resistance against the heating. It is a foam filling device that is disposed in the hollow part of the hollow structure by being attached to the hollow structure by the attachment member, and is filled with the foam in the hollow part by the heating, The mounting member includes a first mounting member having a first main body portion and a first fixing portion fixed to the hollow structure, and a second main body portion and a second fixing portion fixed to the hollow structure. A second attachment member, and the first body part and the second body part are assembled via a guide part that allows the displacement of the other body part relative to the one body part and guides the direction of the displacement. The gist of this is

  According to this configuration, by assembling to allow the displacement of the other body part with respect to the one body part, the distance between the first fixed part and the second fixed part is matched with the distance between the plurality of fixed parts of the hollow structure. be able to. Further, since the assembly of the first main body part and the second main body part is via a guide part that guides the direction of the displacement, it is stable when adjusting the distance between the first fixing part and the second fixing part. Operation is realized. For this reason, the space | interval of a 1st fixing | fixed part and a 2nd fixing | fixed part can be changed smoothly.

The gist of the second aspect of the present invention is that the foam filler according to the first aspect has a restricting portion that restricts the range of the displacement in the direction guided by the guide portion.
According to this structure, the excessive change of the space | interval of a 1st fixing | fixed part and a 2nd fixing | fixed part is suppressed.

The gist of the invention according to claim 3 is that, in the foam filler according to claim 2, the guide portion and the restricting portion are formed continuously.
According to this structure, the structure of a guide part and a control part can be simplified by comprising without separating a guide part and a control part.

  According to a fourth aspect of the present invention, in the foam filler according to any one of the first to third aspects, the first main body portion and the second main body portion are related to a protrusion and the protrusion. The gist is that it is assembled in relation to the locking hole to be stopped, and the inner peripheral surface of the locking hole is configured as the guide portion.

  According to a fifth aspect of the present invention, in the foam filler according to any one of the first to third aspects, the first main body portion and the second main body portion are related to a protrusion and the protrusion. The gist is that the outer peripheral surface of the locking projection is configured as the guide portion, and is assembled in relation to the locking projection to be stopped.

For example, as described in claim 4 and claim 5, the first main body portion and the second main body portion are assembled via the guide portion.
According to a sixth aspect of the present invention, in the foam filler according to the fourth aspect, of the first main body portion and the second main body portion, the protrusion is formed on one main body portion, and the other main body portion. The gist of the present invention is that the first body portion and the second body portion are directly assembled by forming the locking hole.

  According to a seventh aspect of the present invention, in the foam filler according to the fifth aspect, the projection is formed on one of the first main body and the second main body, and the other main body. The gist of the present invention is that the first main body portion and the second main body portion are directly assembled by forming the locking projection.

  As described in the sixth and seventh aspects of the present invention, by directly assembling the first main body portion and the second main body portion, for example, the configuration can be simplified as compared with a case where a connecting member for assembling is separately provided. become.

  The invention according to claim 8 is the foam filler according to any one of claims 1 to 5, wherein the first main body portion and the second main body portion are assembled via a connecting member. It becomes the summary.

  According to this configuration, for example, a plurality of connecting members having different lengths are prepared, and the interval between the first fixing portion and the second fixing portion can be adjusted by selecting from the connecting members and assembling the main body portions. The range can be easily changed.

The gist of the ninth aspect of the present invention is the foam filler according to the eighth aspect, wherein the connecting member is the foamable member or a heat resistant member having heat resistance against the heating.
Thus, a foamable member or a heat resistant member can be adopted as the connecting member.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is a case where it is a case where it attaches to a hollow structure in several places, the foaming filler which can be attached smoothly is provided.

The disassembled perspective view which shows the foaming filler of 1st Embodiment. The perspective view which shows a foaming filling tool. (A) is a top view which shows the state of the reference | standard space | interval of a foaming filler, (b) is a top view which shows the state of the minimum space | interval, (c) is a top view which shows the state of the maximum space | interval. (A) is a fragmentary sectional view which shows the foaming filler attached to the hollow structure, (b) is sectional drawing which shows the state in which the foam was formed. The disassembled perspective view which shows the foaming filler of 2nd Embodiment. (A) is a perspective view which shows a foaming filler, (b) is a fragmentary sectional view along the AA line. The disassembled perspective view which shows the foaming filler of 3rd Embodiment. The perspective view which shows a foaming filling tool. The disassembled perspective view which shows the foaming filler of 4th Embodiment. The perspective view which shows a foaming filling tool. The perspective view which shows the foaming filler of the example of a change. (A) is a partial top view which shows the state of the minimum space | interval in the foam filling tool of a modification, (b) is a partial top view which shows the state of the maximum space | interval. (A) is a partial top view which shows the state of the minimum space | interval in the foam filling tool of a modification, (b) is a partial top view which shows the state of the maximum space | interval. The disassembled perspective view which shows the foaming filler of the example of a change. The perspective view which shows a foaming filling tool.

(First embodiment)
1st Embodiment which actualized this invention is described in detail based on FIGS. 1-4.
As shown in FIG. 1, the foam filler 11 is heated and heat-resistant to the first foamable member 12 and the second foamable member 13 that are foamed and cured to become a foam, and has heat resistance against the heating. The first mounting member 14 and the second mounting member 15 are provided. The foam filler 11 is attached to the hollow portion of the hollow structure by the attachment members 14 and 15. Thereby, each foamable member 12 and 13 is arrange | positioned in the hollow part of a hollow structure, and when each foamable member 12 and 13 is heated in this state, a predetermined part of a hollow part is filled with a foam. Is done.

  As shown in FIGS. 1 and 2, the first mounting member 14 has a plate-like first main body portion 14 a and a first fixing portion 14 b for fixing to a hollow structure. The 2nd attachment member 15 has the 2nd main-body part 15a which makes | forms plate shape, and the 2nd fixing | fixed part 15b for fixing to a hollow structure. Each of the fixing portions 14b and 15b has a known shape that is locked to a through hole of a panel that constitutes the hollow structure.

  A plurality of projecting portions 21 having claw-like tip portions are provided on the upper surface of the first main body portion 14a. The projecting portion 21 includes two first projecting portions 21a arranged side by side along the length direction of the first main body portion 14a, and two second projecting portions arranged side by side along the length direction of the first main body portion 14a. 2 protrusions 21b. A plurality of locking holes 22 are provided in the second main body portion 15 a so as to correspond to the plurality of protrusions 21. The locking hole 22 includes a first locking hole 22a corresponding to the first protrusion 21a and a second locking hole 22b corresponding to the second protrusion 21b.

  The 1st projection part 21a and the 2nd projection part 21b are latched by the 1st locking hole 22a and the 2nd locking hole 22b, respectively. That is, the protrusion 21 is inserted into the locking hole 22 and the tip of the protrusion 21 is locked to the periphery of the locking hole 22, thereby preventing the protrusion 21 from coming off. Thereby, the 1st main-body part 14a and the 2nd main-body part 15a are assembled | attached. The first main body portion 14a is provided with a stepped portion 14c. When the first main body portion 14a and the second main body portion 15a are overlapped and assembled, the first main body portion 14a is assembled. The difference in height between the upper surface of the second main body portion 15a and the upper surface of the second main body portion 15a is reduced.

  Here, each locking hole 22a, 22b has a shape extending along a certain direction (the length direction of the second main body 15a), and each projection 21a, 21b is movable along that direction. Yes. Such assembly of the main body portions 14a and 15a allows displacement of the other main body portion with respect to one main body portion. The resistance when the protrusion 21 moves the locking hole 22 is, for example, the interval between the first protrusion 21a and the second protrusion 21b, or the first locking hole 22a and the second locking hole 22b. It is adjusted by the dimension setting of the interval. In addition, the width dimension of the locking hole 22 is set such that the tip of the protrusion 21 can be inserted.

  As shown in FIG. 3A, the inner peripheral surface along the length direction of the locking hole 22 becomes a guide portion 23 that guides the direction in which the protruding portion 21 is displaced. In addition, the inner peripheral surface located at both ends in the length direction of the locking hole 22 includes a minimum restricting portion 24a and a maximum restricting portion 24b as restricting portions that restrict the range of displacement in the direction in which the protrusion 21 is displaced It has become. The guide portions 23 and the restricting portions 24a and 24b are continuously formed by the locking holes 22 as described above.

  The material for forming the attachment members 14 and 15 can be appropriately selected from the above heat-resistant materials. As such a material, a resin material is preferable from the viewpoint of easy molding, and for example, a polyamide-based resin is preferably used. Each attachment member 14, 15 can be formed by, for example, injection molding.

  As shown in FIGS. 1 and 2, each of the foamable members 12 and 13 has a plate shape as a whole and is fixed to the upper surface of the first main body portion 14a and the upper surface of the second main body portion 15a, respectively. Each foamable member 12, 13 can be fixed by an adhesive, a pressure-sensitive adhesive, insert molding, or the like. The second foamable member 13 is provided with a window portion 13a corresponding to the first locking hole 22a and the second locking hole 22b, and the protrusion 21 is in contact with the second foamable member 13. It has been avoided. Such a window portion 13a may be changed to a concave portion, for example. Moreover, when it changes into a recessed part, if the projection part 21 is movable, the projection part 21 may be contacting the 2nd foamable member 13. FIG.

  Each of the foamable members 12 and 13 is obtained by molding a foamable material by a known molding method such as extrusion molding, press molding, or injection molding. In addition to the base material, the foaming agent, and the crosslinking agent, the foamable material appropriately contains a filler, a plasticizer, and the like. Examples of the substrate include synthetic resins, elastomers, and rubbers. Examples of the synthetic resin include polyolefin, epoxy resin, phenol resin, urethane resin, acrylic resin, styrene resin, EVA (ethylene / vinyl acetate copolymer), and the like. Examples of the elastomer include RB (polybutadiene elastomer), SBS (styrene / butadiene / styrene block copolymer), SIS (styrene / isoprene / styrene block copolymer), SEBS (styrene / ethylene / butylene / styrene block copolymer) and the like. Can be mentioned. As rubber, NR (natural rubber), SBR (styrene / butadiene rubber), BR (butadiene rubber), NBR (nitrile rubber), CR (chloroprene rubber), IR (isoprene rubber), IIR (butyl rubber), EPDM (ethylene) And propylene diene terpolymer), UR (urethane rubber), ENR (epoxidized natural rubber), EPM (ethylene / propylene rubber), and the like. Examples of the foaming agent include azodicarbonamide and dinitropentamethylenetetramine, examples of the crosslinking agent include well-known dimethylurea and dicyandiamide, and examples of the filler include calcium carbonate, barium sulfate, ferrite, and silica.

Next, the operation of the foam filler 11 will be described.
In the foam filler 11 shown in FIG. 3A, each protrusion 21 is located at the approximate center in the length direction of each locking hole 22. When the interval between the first fixing portion 14b and the second fixing portion 15b at this time is a reference interval, the first fixing portion is pressed by pressing at least one of the main body portions 14a and 15a so as to narrow the reference interval. 14b and the 2nd fixing | fixed part 15b approach, and it will be in the state of the minimum space | interval shown in FIG.3 (b). On the other hand, the first fixing portion 14b and the second fixing portion 15b are separated by pulling at least one of the main body portions 14a and 15a so as to increase the reference interval, and the state of the maximum interval shown in FIG. It becomes. Thus, when adjusting the space | interval of the 1st fixing | fixed part 14b and the 2nd fixing | fixed part 15b from the state of a reference | standard space | interval, since the projection part 21 is guided to the guide part 23, stable operation is implement | achieved.

  Further, in the state of the minimum interval, the protrusion 21 contacts the minimum restricting portion 24a, while in the state of the maximum interval, the protrusion 21 contacts the maximum restricting portion 24b. As described above, the foam filler 11 has the minimum restricting portion 24a and the maximum restricting portion 24b, so that the interval between the fixing portions 14b and 15b is restricted within the range from the minimum interval state to the maximum interval state. Thereby, the excessive change of the space | interval of the 1st fixing | fixed part 14b and the 2nd fixing | fixed part 15b is suppressed.

Next, a method for using the foam filler 11 will be described.
As shown in FIG. 4A, the foam filler 11 is attached to the hollow portion of the hollow structure 71. The hollow structure 71 is formed of a metal panel, and specifically includes a flat plate-like first panel 72 and a second panel 73, and a bulged third panel 74. The hollow structure 71 constitutes a part (pillar) of the vehicle structure.

  The first panel 72 is provided with a first through hole 72a, while the second panel 73 is provided with a second through hole 73a. Each through-hole 72a, 73a is provided as a fixed part for each fixed part 14b, 15b, respectively. The first panel 72 and the second panel 73 are assembled by welding or the like. The interval between the first through hole 72a and the second through hole 73a is likely to vary due to the assembling accuracy and the like at this time. While fixing the 1st fixing | fixed part 14b to such a 1st through-hole 72a, the 2nd fixing | fixed part 15b is fixed to the 2nd through-hole 73a. At this time, the interval between the fixing portions 14b and 15b of the foam filler 11 can be fixed in accordance with the interval between the through holes 72a and 73a. Subsequently, the third panel 74 is assembled to the panels 72 and 73 to which the foam filler 11 is fixed by welding or the like. Thereby, each foamable member 12 and 13 is arrange | positioned with each main-body part 14a and 15a in a hollow part.

  Next, foaming and curing of the foamable members 12 and 13 are started by heating the foam filler 11 from the outside at a predetermined temperature. By performing this heating for a predetermined time, a foam 75 is formed as shown in FIG. 4B, and a part of the hollow portion is blocked. For such heating, for example, a drying step when painting the hollow structure 71 can be used, but the present invention is not limited to this, and a known heating device using electricity, steam or the like may be used.

  As described above, by applying the foam filler 11 to the hollow structure 71, the strength, rigidity, vibration damping and the like are improved. Moreover, generation | occurrence | production of the abnormal noise resulting from the distribution | circulation of air is suppressed because the distribution | circulation of the air in a hollow part is suppressed.

The effects exhibited by the first embodiment described above will be described below.
(1) Of the main body portions 14a and 15a, the hollow structure 71 has a space between the first fixing portion 14b and the second fixing portion 15b by assembling the main body portions to allow displacement of the other main body portion with respect to one main body portion. The distance between the through holes 72a and 73a can be adjusted. In addition, since the assembly of the main body portions 14a and 15a is performed via the guide portion 23 that guides the direction of displacement, a stable operation is realized when adjusting the interval between the fixing portions 14b and 15b. For this reason, the space | interval of each fixing | fixed part 14b and 15b can be changed smoothly. Therefore, according to such a foam filler 11, even if it is a case where it is a case where it attaches to the hollow structure 71 (panel 72, 73) in several places, it can attach smoothly.

  (2) In the direction guided by the guide part 23, it has the control parts 24a and 24b which control the range of the displacement. For this reason, the excessive change of the space | interval of each fixing | fixed part 14b and 15b is suppressed. Therefore, since it becomes easy to match | combine the space | interval of each fixing | fixed part 14b, 15b with the space | interval of each through-hole 72a, 73a, the foam filler 11 can be attached to the hollow structure 71 (panel 72, 73) still more smoothly. it can.

  (3) The guide part 23 and each control part 24a, 24b are formed continuously. That is, the structure of the guide part 23 and each control part 24a, 24b can be simplified by comprising the guide part 23 and each control part 24a, 24b without separating.

  (4) While the protrusion 21 is formed in the first main body 14a, the main body 14a, 15a is directly assembled by forming the locking hole 22 in the second main body 15a. In this case, for example, the configuration can be simplified as compared with the case where an assembly member is separately provided.

(Second Embodiment)
A second embodiment embodying the present invention will be described with reference to FIGS. 5 and 6 focusing on differences from the first embodiment. In this embodiment, the assembling mode of the main body portions 14a and 15a is different from that of the first embodiment. For this reason, the same code | symbol as 1st Embodiment is attached | subjected to the member similar to 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 5, the protruding portion 21 protrudes from the lower surface of the first main body portion 14a. On the other hand, a first locking projection 31a and a second locking projection 31b project from the upper surface of the second body portion 15a so as to correspond to the plurality of projections 21. The first protrusion 21a and the second protrusion 21b are locked to the first locking protrusion 31a and the second locking protrusion 31b, respectively. Thereby, as shown to Fig.6 (a), the 1st main-body part 14a and the 2nd main-body part 15a are assembled | attached.

  Here, each latching protrusion 31a, 31b has a shape extending along a certain direction (the length direction of the second main body 15a), and the protrusion 21 is movable along that direction. Such assembly of the main body portions 14a and 15a allows displacement of the other main body portion with respect to one of the first main body portion 14a and the second main body portion 15a. Note that the resistance when the protrusion 21 moves through the locking protrusions 31a and 31b is, for example, the interval between the first protrusion 21a and the second protrusion 21b, or the first locking protrusion 31a and the first protrusion. It adjusts by the dimension setting of the space | interval with the 2 latching protrusion 31b.

  As shown in FIGS. 5 and 6B, the outer peripheral surface along the length direction of each of the locking projections 31 a and 31 b becomes a guide portion 32 that guides the direction in which the projection 21 is displaced. Further, both end portions in the length direction of the respective locking projections 31a and 31b are guided by the guide portion 32 and in the direction in which the projection portion 21 is displaced, the minimum restriction portion 33a as a restriction portion for restricting the range of displacement, and It becomes the maximum restricting portion 33b. The guide portions 32 and the restricting portions 33a and 33b are continuously formed by the locking protrusions 31a and 31b. In addition, the 1st foamable member 12 is set as the structure divided into two, and is supported by the upper surface of the 1st main-body part 14a.

According to the foam filler 11 of the second embodiment described above, the effects described in (1) to (4) of the first embodiment are exhibited.
(Third embodiment)
A third embodiment embodying the present invention will be described with reference to FIGS. 7 and 8 focusing on differences from the first embodiment. This embodiment is different from the first embodiment in that the foaming member is not supported by the first main body portion 14a. For this reason, the same code | symbol as 1st Embodiment is attached | subjected to the member similar to 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 7, the first protrusion 21a and the second protrusion 21b are locked in one locking hole 22 of the second main body 15a. Thereby, as shown in FIG. 8, the 1st main-body part 14a and the 2nd main-body part 15a are assembled | attached. In this assembly, the guide portion 23 is configured by an inner peripheral surface extending in the length direction of the locking hole 22. The main body portions 14a and 15a are directly assembled such that the upper surface of the first main body portion 14a overlaps the lower surface of the second main body portion 15a.

  Here, for example, when the foamable members 12 and 13 are supported by the main body portions 14a and 15a as in the first embodiment, each of the foamable members 12 and 13 corresponds to the other main body portion with respect to the one main body portion. In order not to prevent the displacement, the foamable members 12 and 13 are separated and supported. In a state where the foam filler 11 is attached to the hollow structure, the spacing between the foamable members 12 and 13 varies depending on the spacing between the through holes 72a and 73a. That is, the interval between the foamable members 12 and 13 is changed based on the variation in the interval between the through holes 72a and 73a. As the distance between the foamable members 12 and 13 increases, the volume of the foam formed between the foamable members 12 and 13 may be insufficient. For this reason, in order to realize the filling of the foam with higher accuracy, it takes time to set the volume of each of the foamable members 12 and 13 in consideration of the insufficient volume of the foam.

  In this regard, in the third embodiment, the outer shape of the first main body portion 14a is formed smaller than the outer shape of the second main body portion 15a. The foamable member 13 is supported by the second body portion 15a without the foamable member being supported by the first body portion 14a. According to this configuration, it is avoided that the foamable member 13 hinders the displacement or the foamable member is separated with the displacement. Therefore, it is troublesome to set the foamable member 13 in consideration of the displacement. Can be avoided. In addition, in this foam filling tool 11, you may comprise the operation part extended in the 1st main-body part 14a, for example, and the operation part may be operated with a finger, for example.

According to the foam filler 11 of the third embodiment described above, the following effects are exhibited in addition to the effects described in (1) to (4) of the first embodiment.
(5) The outer shape of the first main body portion 14a is formed smaller than the outer shape of the second main body portion 15a. Is supported. According to this structure, the effort of the setting of the foamable member 13 which considered the said displacement can be avoided.

(Fourth embodiment)
A fourth embodiment embodying the present invention will be described with reference to FIGS. 9 and 10 focusing on differences from the first embodiment. This embodiment is different from the first embodiment in that the main body portions 14a and 15a are assembled via a foamable member. For this reason, the same code | symbol as 1st Embodiment is attached | subjected to the member similar to 1st Embodiment, and the description is abbreviate | omitted.

  Each main body part 14a, 15a is assembled | attached by using the foamable member 41 as a connection member. On the upper surface of the first main body portion 14a, a first connecting protrusion 42a and a second connecting protrusion 42b protrude, while the foaming member 41 has a first connecting locking hole 43a and a second connecting protrusion 43a. A coupling locking hole 43b is provided therethrough. And the foaming member 41 is fixed to the 1st main-body part 14a because each connection projection part 42a, 42b is latched by each connection latching hole 43a, 43b.

  The protrusions 21a and 21b protrude from the upper surface of the second main body 15a, while the foamable member 41 has a first locking hole 44a and a second locking hole for locking the protrusions 21a and 21b. A locking hole 44b is provided therethrough.

  Here, each of the locking holes 44a and 44b has a shape extending along a certain direction (the length direction of the foamable member 41), like the locking holes 22a and 22b of the first embodiment. The protrusions 21a and 21b are movable along Such assembly of the main body portions 14a and 15a allows displacement of the other main body portion with respect to one main body portion. Moreover, the inner peripheral surface along the length direction of the locking holes 44a and 44b serves as a guide portion 45 that guides the direction in which the protruding portions 21a and 21b are displaced. And the inner peripheral surface located in the both ends in the length direction of the locking hole 22 has a minimum restricting portion 46a and a maximum restricting portion as restricting portions that restrict the range of displacement in the direction in which the protruding portions 21a and 21b are displaced. 46b. The guide portion 23 and the restricting portions 46a and 46b are continuously formed by the locking holes 44a and 44b.

According to the foam filler 11 of the fourth embodiment described above, the following effects are exhibited in addition to the effects described in (1) to (4) of the first embodiment.
(6) The main body portions 14a and 15a are assembled using the foamable member 41 as a connecting member. According to this configuration, for example, a plurality of foamable members 41 having different lengths are prepared, and the intervals between the fixed portions 14b and 15b are selected by assembling the main body portions 14a and 15a. Can be easily changed.

(Example of change)
The above embodiment may be modified as follows.
・ Assembly of the main body portions 14a and 15a of each embodiment, the relationship between the protrusion and the recess to which the protrusion is locked is adopted, and the inner peripheral surface of the recess is changed to the assembly with the guide. Also good. For example, as shown in FIG. 11, the first body 51a is provided with a first recess 51a and a second recess 51b, and the protrusions 21a and 21b are configured to be locked to the recesses 51a and 51b. Also good. In this case, the inner peripheral surfaces of the recesses 51a and 51b are the guide portions 23, and both end portions in the longitudinal direction of the recesses 51a and 51b are the restriction portions 24a and 24b. In this case, the same effects as those described in (1) to (4) of the first embodiment are exhibited.

  The minimum restricting portions 24a, 33a, 46a and the maximum restricting portions 24b, 33b, 46b of each embodiment are located at both ends of the guide portions 23, 32, 45, but are restricted to positions other than both ends of the guide portion. Even if the portions are arranged, the guide portion and the restricting portion can be formed continuously. For example, in the modification shown in FIGS. 12A and 12B (illustration of the foamable member is omitted), the first notch recess 52a and the first notch recess 52a formed in an L shape on one end side of the second main body 15a. Two notch recesses 52b are provided, and the protrusions 21a and 21b are engaged with the notch recesses 52a and 52b. On the outer peripheral surfaces of the cutout recesses 52a and 52b, a restriction projection 53 is provided so as to project. In the state of the minimum interval shown in FIG. 12A, one side surface of the restricting projection 53 becomes the minimum restricting portion 24a. On the other hand, in the state of the maximum interval shown in FIG. 12B, the other side surface of the restricting projection 53 becomes the maximum restricting portion 24b. One side surface and the other side surface of the restriction projection 53 are formed continuously with the guide portion 23 that is the outer peripheral surface of the cutout recesses 52a and 52b. In this case, the same effects as those described in (1) to (4) of the first embodiment are exhibited.

  -Although the restriction | limiting part of each said embodiment restrict | limits the range of the said displacement by minimum restriction | limiting part 24a, 33a, 46a and maximum restriction | limiting part 24b, 33b, 46b, the minimum restriction | limiting part 24a, 33a, 46a and maximum restriction | limiting It is good also as a structure which abbreviate | omits at least one of the part 24b, 33b, 46b, and the range of the said displacement is not controlled.

  -The said control part can also be spaced apart and not formed continuously with a guide part. For example, in the modified example shown in FIGS. 13A and 13B (illustration of the foamable member is omitted), the restricting protrusion 54 is erected away from the protrusion 21 on the upper surface of the first main body 14a. At the same time, a restriction hole 55 is provided through the second main body portion 15a, and the restriction protrusion 54 is inserted into the restriction hole 55 by assembling the main body portions 14a and 15a. In this case, the movable range of the restricting protrusion 54 is restricted by setting the size of the restricting hole 55. That is, the inner peripheral surface of the restriction hole 55 becomes the minimum restriction portion 24a and the maximum restriction portion 24b, so that the minimum interval state shown in FIG. 13 (a) is changed to the maximum interval state range shown in FIG. 13 (b). Be regulated. In this case, the same effects as those described in (1) to (4) of the first embodiment are exhibited. Further, for example, in the foam filler 11 shown in FIG. 1, the step portion 14 c of the first main body portion 14 a is configured to come into contact with the second main body portion 15 a, thereby configuring the step portion 14 c as a minimum restricting portion. You can also.

  The fourth embodiment can be modified as shown in FIGS. 14 and 15. In the foam filler 11, the locking holes 44 a and 44 b are provided through the first main body portion 14 a, while the connection locking holes 43 a and 43 b are provided through the second main body portion 15 a. Further, the foamable member 41 is provided with protruding portions 21a and 21b and connecting protruding portions 42a and 42b. And each main-body part 14a, 15a is assembled | attached via the foamable member 41, as shown in FIG. In this case, the same effects as those described in (1) to (3) of the first embodiment and (6) of the fourth embodiment are exhibited.

  In the second embodiment, the first locking protrusion 31a and the second locking protrusion 31b are integrally formed so that the protrusions 21a and 21b are locked to the locking protrusions 31a and 31b. You may change to

  -In the said 2nd Embodiment, although the surface on the opposite side to the surface which the 1st latching protrusion 31a and the 2nd latching protrusion 31b oppose is comprised as the guide part 32, each latching protrusion 31a is comprised. 31b and the projections 21a and 21b may be changed in direction so that the opposing surfaces of the respective locking projections may be configured as guide portions.

  In the fourth embodiment, the locking holes 44a and 44b have a shape extending along a certain direction, and the protrusions 21a and 21b are movable along the direction. Similar to the locking holes 44a and 44b, the connecting locking holes 43a and 43b are changed to a shape extending along the predetermined direction, and the connecting protrusions 42a and 42b can be moved along the direction. You may change to In this case, the inner peripheral surface of at least one of the locking holes 44a and 44b and the coupling locking holes 43a and 43b can be configured as a restricting portion.

  -In the said 4th Embodiment and the modification shown in FIG.14 and FIG.15, you may change so that each main-body part 14a, 15a may be assembled | attached by using a heat resistant member instead of the foamable member 41 as a connection member. In this case, the foamable member is supported by at least one of the main body portions 14a and 15a and the heat-resistant member. The heat-resistant member is not particularly limited as long as it can withstand the heating during foaming and curing of the foamable member, and can be formed from, for example, a resin material or a metal material.

  In each of the above embodiments, the main body portions 14a and 15a have a shape having a length direction, and the interval between the fixing portions 14b and 15b is adjusted along the direction, but the main body portions 14a and 15a are adjusted. The shape can be changed as appropriate. That is, the direction in which the interval between the fixing portions 14b and 15b is adjusted is not set according to the overall shape of the main body portions 14a and 15a, but is formed in the hollow structure 71 (panels 72 and 73). It can be set in consideration of the direction in which the interval between the through holes 72a and 73a tends to vary.

  -In each said embodiment and a modification, the shape or number of the foamable members 12, 13, 41 can be changed suitably. It can change suitably also about the shape or number of each fixing | fixed part 14b and 15b. For example, at least one of the fixing portions 14b and 15b may be changed to a plurality, and the shape of each fixing portion 14b and 15b is the foaming member 12 at a predetermined position of the hollow structure 71 (panels 72 and 73). , 13, 41 may be appropriately changed to a shape to be held.

  The foam filler 11 can be changed to a configuration in which a third mounting member is connected in addition to the mounting members 14 and 15. The third attachment member has a third main body portion and a third fixing portion, similarly to the attachment members 14 and 15. A foamable member is supported on the third body portion as necessary. The third body part is assembled to the first body part 14a or the second body part 15a. The assembly of the third main body portion and the first main body portion 14a or the second main body portion 15a is not particularly limited, and may be an assembly that allows the displacement of the other main body portion with respect to the one main body portion. Assembly via a guide may be used.

  The foam filler 11 is applied to a hollow structure 71 that constitutes a part of the vehicle structure. For example, the foam filler 11 is applied to a hollow structure used for railways, ships, aircraft, buildings, etc. Also good. Moreover, the shape of a hollow structure and a hollow part is not specifically limited, For example, a cylindrical hollow structure may be sufficient.

  DESCRIPTION OF SYMBOLS 11 ... Foam filler, 12 ... 1st foamable member, 13 ... 2nd foamable member, 13a ... Window part, 14 ... 1st attachment member, 14a ... 1st main-body part, 14b ... 1st fixing | fixed part, 14c ... Stepped portion, 15 ... second mounting member, 15a ... second main body portion, 15b ... second fixing portion, 21 ... projection portion, 21a ... first projection portion, 21b ... second projection portion, 22 ... locking hole, 22a , 44a ... first locking hole, 22b, 44b ... second locking hole, 23, 32, 45 ... guide part, 24a, 33a, 46a ... minimum restricting part, 24b, 33b, 46b ... maximum restricting part, 31a ... First locking protrusion, 31b ... second locking protrusion, 41 ... foamable member, 42a ... first connecting protrusion, 42b ... second connecting protrusion, 43a ... first connecting locking hole, 43b ... 2nd connection locking hole, 51a ... 1st recessed part, 51b ... 2nd recessed part, 52a ... 1st notch recessed part, 52 ... 2nd notch recessed part, 53, 54 ... Restriction protrusion, 55 ... Restriction hole, 71 ... Hollow structure, 72 ... 1st panel, 72a ... 1st through-hole, 72b ... 2nd through-hole, 73 ... 2nd panel 74 ... 3rd panel, 75 ... Foam.

Claims (9)

A foamable member that is foamed and cured by heating to become a foam, and an attachment member that is heat resistant to the heating, and is attached to the hollow structure by the attachment member so that the hollow structure A foam filling device in which the foamable member is disposed in a hollow portion of a body, and the hollow portion is filled with the foam by the heating;
The mounting member is
A first mounting member having a first main body portion and a first fixing portion fixed to the hollow structure;
A second attachment member having a second body portion and a second fixing portion fixed to the hollow structure;
The first body portion and the second body portion are assembled through a guide portion that allows displacement of the other body portion with respect to one body portion and guides the direction of the displacement. Filling tool. The foam filler according to claim 1, further comprising a restricting portion that restricts a range of the displacement in a direction guided by the guide portion. The foam filler according to claim 2, wherein the guide portion and the restricting portion are formed continuously. The first main body portion and the second main body portion are assembled in a relationship between a projection portion and a locking hole in which the projection portion is locked, and an inner peripheral surface of the locking hole is configured as the guide portion. The foam filler according to any one of claims 1 to 3, wherein the foam filler is characterized in that The first main body portion and the second main body portion are assembled in a relationship between a protrusion and a locking protrusion that locks the protrusion, and the outer peripheral surface of the locking protrusion is configured as the guide portion. The foaming filler according to any one of claims 1 to 3, wherein: Of the first body part and the second body part, the protrusion is formed in one body part, and the locking hole is formed in the other body part, so that the first body part and the second body part are formed. The foam filler according to claim 4, wherein the two main body parts are directly assembled. Of the first body part and the second body part, the protrusion is formed on one body part, and the locking protrusion is formed on the other body part, whereby the first body part and the second body part are formed. The foam filler according to claim 5, wherein the second main body is directly assembled. The foam filler according to any one of claims 1 to 5, wherein the first main body portion and the second main body portion are assembled via a connecting member. The foam filler according to claim 8, wherein the connecting member is the foamable member or a heat-resistant member having heat resistance against the heating.

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