JPH0871475A - Adhering method and adhesive coater - Google Patents

Abstract

PURPOSE: To facilitate the control of the consumption of an adhesive and to improve operability. CONSTITUTION: This adhesive coater is provided with a forced-feed pump 12 with the suction port arranged in a tank 11 contg. an adhesive 9 of specified viscosity, a coating nozzle 20 connected to the deliverly port of the pump 12 and moved in the adhesive applying direction, and the backsicle of the nozzle 20 is opened. The adhesive 9 is applied on the joining face 6 of a panel 5 in the form of a buldged strip. After the adhesive is applied, the joining face 6 of the panel 5 is abutted on the joining face 6 of another panel 5 and depressed to uniformly spread the adhesive 9 over the entire joining faces 6. Consequently, the adhesive 9 is uniformly and rapidly applied.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the joining of wood, etc.
The present invention relates to a bonding method and an adhesive application device suitable for joining wooden panels to each other, wooden columns to each other, and joining wooden panels and wooden columns.

[0002]

BACKGROUND ART Conventionally, there is known a panel construction method for building a building such as a house by previously manufacturing various types of panels such as walls and floors of a house at a factory and assembling these panels at a construction site. ing. In such a panel construction method,
As shown in FIG. 4, a core material 1 made of wooden lumber, etc.
A panel 5 in which a rectangular frame 3 is formed by 2 and a face material 4 made of wood plywood or the like is attached to both sides of the frame 3.
Is used. A wall or floor having a desired area can be constructed by joining a required number of such panels 5.
Either one of the dowel 7 and the dowel hole 8 is provided on the joining surface 6 of the pair of panels 5 to be joined to each other. These dowels 7 and dowel holes 8 are formed at positions corresponding to each other. After the adhesive is applied to the joint surface 6 having the dowel hole 8 of the panel 5 by using a roller, the joint surfaces 6 are brought into contact with each other and one dowel 7 is fitted into the other dowel hole 8. The panels 5 are joined together. As a result, the two panels 5 are joined together without causing a step at the joined portion.

[0003]

In such a bonding method, since the adhesive is applied by using a roller, it is difficult to apply the adhesive quickly and evenly, and a predetermined adhesive strength is secured. Therefore, it is necessary to carefully perform the coating work so that there is no unevenness, and there is a problem that workability is poor. Also, when the roller passes through the dowel hole, more adhesive gets into the dowel hole from the roller than in other parts, so unevenness is likely to occur behind the dowel hole and The amount of adhesive that gets into the hole cannot be adjusted. For this reason, even when the adhesive is applied to the same type of panel, the amount of the adhesive used may be significantly different for each panel, which makes it difficult to control the amount of the adhesive used. On the other hand, although it is possible to use an adhesive applying device having a mechanism for pushing the adhesive contained in the cartridge manually or by a force such as a spring, in such an adhesive applying device, a fixed amount of adhesive is continuously applied. Since it is difficult to discharge the adhesive, it is difficult to control the amount of adhesive used and the workability is poor, and the above-mentioned problems cannot be solved.

An object of the present invention is to provide a bonding method and an adhesive coating device which facilitate the management of the amount of adhesive used and have good workability.

[0005]

A first aspect of the present invention is a bonding method for bonding a pair of members to be bonded to each other, wherein an adhesive is applied to at least one joint surface of the pair of members to be bonded. It is characterized in that after being applied in a raised state, the pair of members to be adhered are pressed in a direction in which the respective joint surfaces come into contact with each other. In the above, it is preferable that the adhesive applied in the state of being swollen in the form of strips is applied in a plurality of lines at intervals of a predetermined dimension. The viscosity of the adhesive is preferably in the range of 500 to 1000 poise.

A second aspect of the present invention is an adhesive application device for adhering a pair of adhered members to each other, wherein a suction pump is arranged in an adhesive having a predetermined viscosity on the suction side, and this pressure pump. And an application nozzle that is connected to the discharge side of the application nozzle and is moved in the application direction for applying the adhesive, and the application nozzle is opened at the rear side in the application direction of the application nozzle. In the above, it is preferable that the application nozzle is branched into two or more branches so that a plurality of adhesives can be applied. Further, the application nozzle is attached to a support member having a roller that abuts on the joint surface of the adhered member, and the support member is provided with a guide member that engages with a surface orthogonal to the joint surface of the adhered member. It is preferable.

[0007]

In the first aspect of the present invention as described above, since the adhesive is applied in a state of being swollen like a strip, it becomes possible to apply the adhesive while avoiding the dowel hole or the like. Since the adhesive does not get into the above, it becomes easy to manage the amount of the adhesive used. Further, by pressing the pair of members to be adhered in a direction in which the respective joint surfaces come into contact with each other, the adhesive in a state of being swollen in a belt shape is spread and spread evenly on the joint surfaces, and the adhesive is fast and uniform. Can be applied to improve the workability and efficiency of the bonding work, thereby achieving the above object.

On the other hand, according to the second aspect of the present invention, since a constant amount of adhesive can be discharged from the coating nozzle per unit time by the pressure-feeding pump, the width of the adhesive coated in the form of a strip is increased. It becomes possible to make the height and the like uniform, the application amount of the adhesive becomes uniform, and the use amount of the adhesive can be easily controlled. Moreover, since the adhesive is continuously discharged from the application nozzle by the pressure pump, the application speed of the adhesive is increased, the application work can be performed easily and quickly, and the workability and work efficiency of the adhesion work are improved. The above object is achieved.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. In the following description, the same members as those already described are designated by the same reference numerals, and the description thereof will be omitted or simplified. FIG. 1 shows an adhesive application device 10 according to this embodiment. The adhesive application device 10 is for applying the adhesive 9 in a belt-like swelling state to the joint surface 6 of the panel 5 which is the member to be adhered. As the adhesive 9, any one of vinyl acetate type, butyl rubber type, and epoxy type can be adopted, but in particular, a butyl rubber type adhesive whose viscosity is set in the range of 500 to 1000 poise is adopted. Preferably. The adhesive application device 10 includes a tank 11 containing an adhesive 9 having a predetermined viscosity, and the tank 11
A pressure feed pump 12 having a suction port disposed therein, a coating nozzle 20 connected to the discharge port of the pressure feed pump 12 and discharging an adhesive 9, and an airless gun provided between the coating nozzle 20 and the pressure feed pump 12. A support member 30 that supports the coating nozzle 20 is provided.

Of these, the coating nozzle 20 has two adhesive discharge ports 21 whose tip is divided into two. The two adhesive ejection ports 21 allow the adhesive 9 to be applied to both sides of the row of the dowel holes 8 in a state of two strips, one strip in each row. The coating nozzle 20 has
Adapter 22 that can be connected to the outlet 13A of the airless gun 13
And a cheese 23 which is a T-shaped pipe connected to the adapter 22, an elbow 24 which is an L-shaped pipe connected to the tip end of the cheese 23 which is branched into two, and which is connected to each elbow 24. And a straight pipe 25. The adhesive discharge port 21 is formed by obliquely cutting the lower end of the pipe 25 in the drawing, and is opened not only in the lower side but also in the rear side in the application direction of the adhesive 9.

The airless gun 13 has a built-in valve (not shown) for stopping the flow of the adhesive 9. By squeezing a trigger 13A provided on the airless gun 13, the valve is opened to apply the adhesive 9 to the nozzle. It is designed to supply 20. Adhesive supply port 13 for airless gun 13
B is connected to the pressure feed pump 12 via a flexible tube 14 made of vinyl or the like. The flexible tube 14 allows the airless gun 13 and the coating nozzle 20 to move in the coating direction of the adhesive 9 (direction of arrow A in the figure).

The support member 30 has a rectangular base plate 31 to which the coating nozzle 20 is attached, and rollers 32 are provided at the left and right edge portions 31A and 31B of the base plate 31 in the coating direction. is there. The roller 32 contacts the joint surface 6 of the panel 5 and rotates. A plurality of rollers 32 are provided on the edge portion 31A on the right side in the application direction of the base plate 31, and one roller 32 is provided on the edge portion 31B on the left side in the application direction. A guide member 33 that extends along the surface 4A of the face material 4 orthogonal to the joint surface 6 of the panel 5 and engages with the surface 4A is provided at the edge portion 31A on the right side of the coating direction of the base plate 31. . By engaging the guide member 33 with the surface 4A, the support member 30 can be reliably moved on the joint surface 6 of the panel 5 along the coating direction and can be smoothly moved by the roller 32. Is possible.

Next, the procedure of the bonding work in this embodiment will be described. First, the adhesive 9 is applied to one joint surface 6 of the two panels 5 which are the members to be adhered, for example, the joint surface 6 having the dowel hole 8. This application operation is performed by a worker manually operating the adhesive application device 10. At this time, the adhesive 9 is applied to the joint surface 6 in a two-belt band-like swelling state by the bifurcated application nozzle 20. Then
The two panels 5 are pressed in the direction in which the joint surfaces 6 contact each other. As a result, the adhesive 9 applied in a raised state is spread over the entire joint surface 6 and becomes uniform. Here, the adhesive 9 spread by pressing the panel 5 slightly protrudes from the joint between the two panels 5.
The protruding amount of the adhesive 9 increases according to the applied amount of the adhesive 9, and the protruding amount of the adhesive 9 can be visually inspected. Therefore, the protruding amount of the adhesive 9 can be visually confirmed. Then, it is inspected whether or not a predetermined amount of the adhesive 9 is uniformly applied to the joint surface 6. The panel 5 that has undergone this inspection is cured for a predetermined time, and when the adhesive 9 dries and reaches a sufficient adhesive strength, the adhesive work is completed.

According to this embodiment as described above, the following effects can be obtained. That is, the forked nozzle 20
Since the adhesive 9 is discharged from the application nozzle 20 and the adhesive 9 is applied to both sides of the row of the dowel holes 8 one by one in a strip shape, the dowel hole is formed. Since the adhesive 9 is applied avoiding 8 and the adhesive 9 does not enter the dowel hole 8 and the amount of the adhesive 9 used is stable, the operator or the like can easily manage the amount of the adhesive 9 used. can do.

After the adhesive 9 is applied, the joint surfaces 6 of each other are joined together.
Since the two panels 5 are pressed in the direction in which they come into contact with each other, the adhesive 9 in a swollen state is spread and spread evenly over the entire joint surface 6, and the adhesive 9 can be applied evenly. The adhesive 9 can be applied quickly, and the workability and efficiency of the bonding work can be improved.

Further, since the adhesive 9 is spread by pressing the panel 5 so that the adhesive 9 slightly protrudes from the joint between the two panels 5, the amount of the adhesive 9 protruding is visually inspected. Further, it is possible to easily visually inspect whether the predetermined amount of the adhesive 9 is properly applied to the joint surface 6.

Further, since the adhesive applying device 10 is provided with a pressure-feeding pump 12 for pressure-feeding the adhesive 9, the pressure-feeding pump 12 discharges a constant amount of the adhesive 9 from the application nozzle 20 per unit time. Adhesive 9 applied to the surface
The width and height of the adhesive 9 can be made uniform, the amount of the adhesive 9 applied can be made uniform, and the amount of the adhesive 9 used can be adjusted by appropriately setting the moving speed of the application nozzle 20. Therefore, also from this point, the operator or the like can easily manage the usage amount of the adhesive 9.

Further, since the adhesive 9 is continuously discharged from the application nozzle 20 by the pressure feed pump 12, the application of the adhesive 9 can be performed easily and quickly, and the workability and the work of the adhesion work can be performed. The efficiency can be improved.

Further, since the coating nozzle 20 is bifurcated, even if the joint surface 6 has a protrusion such as a dowel 7, the protrusion is provided with a protrusion.
It can be passed between the two forks, and the adhesive 9 can be easily applied like the joint surface 6 having no protrusion such as the dowel 7.

Further, a supporting member for supporting the coating nozzle 20.
Since the guide member 33 that engages with the surface 4A of the panel 5 and the roller 32 that comes into contact with the joint surface 6 of the panel 5 and rotates are provided in the member 30, the support member 30 moves above the joint surface 6 in the coating direction. Since the support member 30 is surely moved along the surface, and the smooth movement of the support member 30 is ensured, it is possible to reliably apply a uniform and required amount of the adhesive 9 to the joint surface 6 regardless of the operator.

Although the present invention has been described with reference to the preferred embodiment, the present invention is not limited to this embodiment, and various improvements and design changes can be made without departing from the gist of the present invention. It is possible. For example, the application nozzle is not limited to a bifurcated one, but may be a trifurcated one or more, and the number of branches of the application nozzle may be appropriately set according to the width of the joint surface and the like. By setting the number of branches in this manner, the adhered member can be reliably adhered even if the width dimension of the joint surface of the adhered member is extremely large.

The members to be bonded are not limited to the combination of panels, but may be the combination of columns or the combination of panels and columns. The present invention is applicable to the general joining of other wood-based members. Available.

Further, as the adhesive discharge port of the coating nozzle, the adhesive discharge port 21 formed by obliquely cutting a pipe is used.
Not limited to this, as shown in FIG. 2, an adhesive discharge port 27 obtained by cutting the lower half of the lower end of the pipe 26 in a stepped manner, or, as shown in FIG. The adhesive discharge port 29 formed by bending it may be used.

The support member is not limited to one in which a guide member is provided on one side of the adhered member and engages with one surface of the adhered member, and guide members are provided on both sides of the adhered member. It may be one that engages with both surfaces of the member to be adhered while being sandwiched. Furthermore, the guide member is not limited to one that directly engages the surface of the adherend member, but may be one that engages via a rotating member such as a roller.

[0025]

As described above, according to the present invention, the amount of adhesive used can be easily controlled, and the workability and work efficiency of the bonding work can be improved.

[Brief description of drawings]

FIG. 1 is a schematic view showing an entire embodiment of the present invention.

FIG. 2 is a perspective view showing a modified example of the present invention.

FIG. 3 is a perspective view showing another modification of the present invention.

FIG. 4 is a perspective view for explaining an adherend member according to the present invention.

[Explanation of symbols]

 4A Panel surface as a surface orthogonal to the bonding surface 5 Panel as a member to be bonded 6 Bonding surface 9 Adhesive 10 Adhesive applicator 12 Pressure pump 20 Application nozzle 21 Adhesive discharge port that is the opening of the application nozzle 30 Support member 32 Roller 33 Guide member

Claims (6)

[Claims] 1. An adhesive agent is applied to at least one joint surface of a pair of adherend members in a belt-shaped swelling state, and then the pair of adherent members are pressed in a direction in which the joint surfaces contact each other. A bonding method characterized by the above. 2. The bonding method according to claim 1, wherein a plurality of the strip-shaped adhesives are applied at intervals of a predetermined size. 3. The bonding method according to claim 1 or 2, wherein the viscosity of the adhesive is in the range of 500 to 1000 poise. 4. A pressure feed pump, the suction side of which is arranged in an adhesive having a predetermined viscosity, and an application nozzle which is connected to the discharge side of the pressure feed pump and is moved in the application direction for applying the adhesive. The adhesive coating device is characterized in that the coating nozzle has an opening on the rear side in the coating direction of the coating nozzle. 5. The adhesive coating device according to claim 4, wherein the coating nozzle is branched into two or more branches so that a plurality of strips of adhesive can be coated. 6. The adhesive application device according to claim 4 or 5, wherein the application nozzle is attached to a support member having a roller that abuts a joint surface of the adherend member,
The adhesive applying device, wherein the supporting member is provided with a guide member that engages with a surface orthogonal to the joining surface of the adherend members.