JP4373465B2 - Joining method - Google Patents

Description

The present invention relates to a bonding how, particularly, relates to joining how for joining together a pair of members to be joined.

Conventionally, as a structure for joining a pair of materials to be joined, for example, when a frame material (frame material) constituting a window frame, a shoji frame or the like is framed, a pair of frame materials (materials to be joined) intersecting each other A structure in which the ends are joined by screws is common.
As a joining structure by screwing, a structure in which a screw hole is provided in one of the frame materials to be joined to each other and a screw penetrated from the outside of the other frame material is screwed into the screw hole is used. By the way, a metal extruded shape is often used as the frame material, and when forming a screw hole in such an extruded shape, it is necessary to form not only the longitudinal end but also the entire length. There is a demerit that the amount of metal material used increases in the joint structure with screws.

On the other hand, as a structure for joining the frame members in addition to the joint structure using screws, a plurality of projecting pieces (folded pieces) are provided at the end of one frame member, and a plurality of insertion holes (transparent holes) are provided in the other frame member. There is also used a structure in which a hole) is provided and the tip of a protruding piece inserted through the insertion hole is bent and joined (see, for example, Patent Document 1).
Further, as similar to the joining structure described in Patent Document 1, the tip of the projecting piece inserted into the insertion hole is crushed by hitting it with a blade such as a hammer, and the tip of the projecting piece is enlarged in the plate thickness direction. A structure that joins each other is also conceivable.
In the case of the joint structure using the projecting piece and the insertion hole as described above, it is not necessary to form a screw hole over the entire length of the frame member as compared with the joint structure by the screw fixing, and therefore the use of a metal material The amount can be suppressed.

Japanese Utility Model Publication No. 32-1863

  However, in the joint structure described in Patent Document 1, since it is necessary to process a plurality of projecting pieces and a plurality of insertion holes on the frame material, there is a problem that the processing labor is excessive and the manufacturing cost increases. is there. In addition, in the joint structure in which the tip of the projecting piece is crushed, there is a problem that the processing accuracy tends to vary depending on the skill level of the operator who handles the hammer and the processing takes a long time. Furthermore, in the case of crushing processing, the hammering force is applied in the longitudinal direction of one frame member provided with the projecting piece. Therefore, if the striking force is increased, the frame member itself may buckle. In addition to being difficult to increase the speed, it is difficult to automate using a press or the like.

An object of the present invention is to provide a bonding how that can suppress variations in strength of the joint together with the processing time can be reduced.

The joining method of the present invention is a joining method for joining a pair of materials to be joined to each other, and one of the pair of materials to be joined is attached to the other material to be joined at its longitudinal end. The other material to be joined has a joined surface part in which an insertion hole through which the extending part can be inserted is formed, and the tip of the extending part is The extension that is inserted through the insertion hole from one side of the joined surface portion using a pair of clamping members that are deformed by being sandwiched from both sides and that are formed with claw portions that can mesh with each other when approaching. In a state where the tip of each part protrudes to the other side of the surface to be joined, the pair of clamping members are moved toward each other so as to sandwich the tips of the extending parts, and the claws of the respective clamping members are engaged. switching via shear in at least one place the tip of the extending portion And is divided into a plurality of protrusions, contact this protrusion adjacent to each other with the cutting position is deformed in opposite directions in one and the other of the claw portions, each protruding portion is deformed to the object to be bonded face And a pair of materials to be joined are joined together.

  Here, as a material to be joined, any pair of members to be joined together may be used. For example, a frame material used for a fitting such as a sash window (a frame material of a window frame, a shoji frame material, a frame material) Etc.), or members used for various building materials such as interior materials and exterior materials. Furthermore, as a to-be-joined material, the various structural materials used in addition to joinery, building materials, etc., decoration materials, etc. may be sufficient. That is, the present invention can be widely applied to a joining structure in which a pair of materials to be joined are joined together.

  According to the present invention described above, a plate-like extension portion is formed in one of the materials to be joined, an insertion hole is formed in the other material to be joined, and the tip of the extension portion inserted through the insertion hole is formed. By cutting and dividing into a plurality of protrusions and deforming adjacent protrusions in the opposite direction, it is not necessary to form a plurality of protrusions and insertion holes in advance, thereby reducing the processing effort Can do. Furthermore, by cutting and deforming the tip of the extension part, it is less likely to cause variations due to the skill level of the operator compared to the conventional crushing process using a hammer, improving the processing accuracy of the joint part and joining. It is possible to prevent the rattling of the portion and to secure the bonding strength stably. Further, in the conventional crushing process, the striking force is applied in the longitudinal direction of the member provided with the projecting piece, whereas in the present invention, the material to be joined is sandwiched from both sides in the plate thickness direction of the extending portion. The clamping force does not act in the longitudinal direction (or only a very small force acts), and buckling of the materials to be joined can be prevented. Therefore, by increasing the length of the extended portion to be processed at one time or increasing the number of protrusions to be formed, it is possible to increase the bonding strength and prevent buckling of the materials to be bonded. The processing speed can also be increased.

Furthermore , by using claw portions that can mesh with a pair of clamping members, the tip of the extension portion can be sheared and cut with high accuracy, and the protrusion can be deformed without stopping following cutting, Both processing accuracy and processing speed can be increased.

Furthermore, in the joining method of the present invention, the claw portion is formed to have an inclined surface that is inclined so as to form an acute angle with the surface on the other side of the joined surface portion, and is cut by the shearing. A configuration in which the protrusion is bent and deformed by pressing the protrusion with the inclined surface can be employed.
According to such a configuration, it is possible to bend and deform while cutting the tip of the extending portion with a relatively small clamping force.
In the method for manufacturing a frame of the present invention, the claw portion is formed to have a vertical surface substantially orthogonal to the surface on the other side of the bonded surface portion, and the protrusion cut by the shearing You may employ | adopt the structure which deform | transforms the said protrusion so that it may shift to the moving direction of the said clamping member by pressing on a perpendicular surface.
According to such a configuration, even if the protrusion amount of the extension part tip to the other side of the joined surface part is small, the extension part can be reliably cut and the protrusion can be deformed. The part can be made inconspicuous and out of the way.

On the other hand, the joining structure of the present invention is a joining structure for joining a pair of materials to be joined to each other, and one of the pair of materials to be joined is connected to the other to be joined from its longitudinal end. A plate-like extension portion extending toward the material, and the other material to be joined has a joined surface portion in which an insertion hole through which the extending portion can be inserted is formed. The tip of the extended portion that is inserted into the insertion hole from one side and protrudes to the other side of the surface to be joined is cut at at least one location and divided into a plurality of protrusions, and the cutting position is sandwiched between them. The adjacent protrusions are deformed in opposite directions and are in contact with the surface to be joined.
According to the present invention as described above, since the materials to be joined can be joined as described in the joining method described above, it is possible to improve the processing accuracy and stably secure the joining strength.

At this time, in the joining structure of the present invention, the lengths of the plurality of protrusions divided into the plurality are set to be substantially the same, and the number of protrusions deformed in opposite directions is set to the same number. It is preferable.
According to such a configuration, the length dimension and the number of the protrusions deformed in the opposite directions are set to be the same, so that the bonding force acting on each protrusion becomes uniform, and the specific protrusion It is possible to prevent a rupture state that breaks in advance from the portion, and to further improve the bonding strength. Furthermore, since the non-uniformity of the clamping force when the protrusion is deformed in the reverse direction is eliminated and the reaction force during processing is less likely to occur, the manufacturing apparatus can be simplified.

Moreover, in the joining structure of this invention, it is preferable that the said adjacent protrusions are formed in contact in part.
According to such a configuration, adjacent protrusions are in contact with each other, that is, when the extension part is cut and deformed, the protrusions are deformed so as not to be completely separated from each other. Thus, since the base end portions of the protrusions are formed in a continuous state, the force can be transmitted between the protrusions when an external force is applied. Therefore, the breaking strength of the protrusion can be increased, and the bonding strength between the materials to be bonded can be ensured.

Moreover, the joinery of the present invention is a joinery comprising a frame and a face material supported by the frame, and the pair of members constituting at least one of the frame and the face material are either of the above It is characterized by being joined by the joining structure.
Here, examples of the frame body include window frames, door frames, opening frames, and other joinery frames that are fixed to the building by the upper, lower, left, and right frame members being quadrilaterally framed. A movable shoji or fixed shoji that holds a panel inside the four-sided frame can be exemplified. And in a frame and a face material, the to-be-joined material should just be comprised with the frame material and brazing material which are the structural members. In other words, the fittings of the present invention can employ arbitrary things such as windows and doorways having various types of opening and closing, or fitting windows that cannot be opened and closed. Also, one material to be bonded may be an upper frame and a lower frame (or upper and lower frames), and the other material to be bonded may be left and right vertical frames (or left and right vertical frames). May be left and right vertical frames (or left and right vertical rods), and the other material to be joined may be an upper frame and a lower frame (or upper and lower rods).
According to such a joinery, substantially the same effects as those of the joining method and the joining structure described above can be obtained, and the extension parts are formed at both ends of one of the joined materials, and the other joined parts located on both sides thereof. If the insertion holes are formed in both of the materials, it is possible to balance the forces acting on the frame body and the shoji screen material by performing the joining work simultaneously from both sides.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a main part of a window frame W constituting a fitting according to an embodiment of the present invention. FIG. 2 is a perspective view showing a state of the window frame W before the frame.
In FIGS. 1 and 2, a window frame W as a frame is provided on an outer wall of a building, and constitutes a sash window by supporting a shoji, a fixed panel material, etc. (not shown) in the interior. It consists of a four-frame frame consisting of an upper frame, a lower frame, and left and right vertical frames.
In FIG. 1 and FIG. 2, among the upper frame, the lower frame, and the left and right vertical frames, one end portion of the upper frame 1 as one bonded material and the vertical frame 2 as the other bonded material. The joining structure with the upper end part in is shown as an example.
In this case, the other end of the upper frame 1 (not shown) and the upper end of the other vertical frame 2 are joined with the same joining structure as shown in FIGS. Furthermore, the joining structure of the end part of the lower frame as one material to be joined and the lower end part of the vertical frame 2 as the other material to be joined is the same.

  The upper frame 1 is formed in an overall long shape and has a substantially H-shaped cross section, and in the cross section, a prospective surface portion 11 extending along a prospective direction (indoor / outdoor direction, a direction indicated by X in the figure), and the prospective surface portion. 11 is a room finding surface 12 extending in the direction of finding on the indoor side (the direction perpendicular to the longitudinal direction of the upper frame 1 and the prospective direction and indicated by Z in the figure), and the direction of finding on the outdoor side of the prospective face 11. It has the outdoor finding surface part 13 extended in this. On the other hand, the vertical frame 2 is formed in an overall long shape and has a substantially H-shaped cross section. An indoor finding surface portion 22 extending in a direction (a direction perpendicular to the longitudinal direction of the vertical frame 2 and the prospective direction and indicated by Y in the figure), and an outdoor finding surface portion 23 extending in the finding direction outside the prospective surface portion 21. It is comprised. The indoor finding surface portion 12 and the outdoor finding surface portion 13 of the upper frame 1 and the indoor finding surface portion 22 and the outdoor finding surface portion 23 of the vertical frame 2 are each appropriately cut out, and the upper frame 1 and the vertical frame 2 When the two are joined together, the indoor finding surface portions 12 and 22 and the outdoor finding surface portions 13 and 23 are continuous on the same surface. Further, the prospective surface portion 11 of the upper frame 1 and the prospective surface portion 21 of the vertical frame 2 are continuous in a state where the plane directions thereof are substantially orthogonal to each other.

  In addition, as shown in FIG. 2, a plate-like extending portion 14 extending toward the vertical frame 2 is formed on the prospective surface portion 11 at the end portion in the longitudinal direction of the upper frame 1. On the other hand, a long hole-like (slit-like) insertion hole 24 through which the extension part 14 can be inserted is formed at a position corresponding to the extension part 14 in the prospective surface part 21 of the vertical frame 2. That is, the bonding surface portion is configured by the prospective surface portion 21 of the vertical frame 2. As shown in FIG. 1, the extended portion 14 of the upper frame 1 is inserted into the insertion hole 24 from one side (in the direction of finding) to the other side (outside of the direction of finding) of the prospective surface portion 21 of the vertical frame 2. And is provided to project to the other side of the prospective surface portion 21. The tip of the extended portion 14 protruding in this way is cut at at least one location and divided into a plurality of protrusions 15, and the adjacent protrusions 15 across the cutting position (cutting portion 16) are opposite to each other. And is brought into contact with the prospective surface portion 21 of the vertical frame 2.

  Specifically, as shown in FIG. 1, the distal end of the extending portion 14 is cut at five cutting portions 16 and divided into six protruding portions 15. The six protrusions 15 are each formed to have an equal length dimension, that is, the length dimension along the prospective direction of each protrusion 15 is set to be substantially the same. Of the six protrusions 15, three protrusions 15A are deformed toward the longitudinal end of the vertical frame 2, and the other three protrusions 15B are deformed in the opposite direction. The protrusions 15A and the protrusions 15B are alternately provided. Further, the protrusions 15A and 15B adjacent to each other are formed in contact with each other, that is, the protrusion 15 is formed so that the cutting part 16 does not penetrate the extension part 14 in the plate thickness direction.

Next, the manufacturing apparatus of the window frame W is demonstrated based on FIG.
FIGS. 3A and 3B are front views showing a non-forced state and a forced state of a pair of clamping members in the manufacturing apparatus.
The manufacturing apparatus for the window frame W includes a mounting table (not shown) for setting a frame material constituting the window frame W, and a pair of press devices that are attached to the mounting table so that the position thereof can be adjusted. The pressing device cuts the extending portion 14 to deform the protrusion 15, and both longitudinal ends of one of the frame members set on the mounting table (in this embodiment, the upper frame 1 and the lower frame). A pair is provided at a position corresponding to the portion.

The press device has, for example, a pair of sandwiching members P1 and P2 that are supported on a mounting table so as to be able to move forward and backward, and the pair of sandwiching members P1 and P2 are configured to move and mesh with each other. Has been.
Note that the pair of sandwiching members P1 and P2 are configured to be appropriately replaceable according to the form and specifications of the window frame W to be manufactured.

  The pair of sandwiching members P1 and P2 are deformed by sandwiching the distal end of the extending portion 14 from both sides. As shown in FIG. 3, a plurality of the facing members P1 and P2 can mesh with each other when approaching each other. Claw portions P11 and P21 are formed. That is, three nail portions P11 corresponding to the three protrusions 15A are formed on one holding member P1, and three nail portions P21 corresponding to the three protrusions 15B are formed on the other holding member P2. Is formed. Then, the one and the other claw portions P11 and P21 are alternately positioned and meshed with each other, so that the tip of the extension portion 14 is cut by shearing, and the protrusion 15A and the protrusion 15B formed by cutting are formed. Are deformed in directions opposite to each other.

Next, the manufacturing method (joining procedure of frame materials) of the window frame W is demonstrated based on FIGS. Here, a joining procedure for joining the upper frame 1 as one joined material and the vertical frame 2 as the other joined material will be described.
4 (A) to 4 (C) and FIGS. 6 (A) to 6 (C) are diagrams for explaining a joining procedure between frame members. Here, FIG. 4 (A) and FIG. 6 (A) show the non-force state of the press device, respectively, and FIG. 4 (B) and FIG. 6 (B) show the force state of the press device, respectively. Yes. FIG. 5 and FIG. 7 are perspective views showing one material to be joined (upper frame 1) after processing.

First, the upper frame 1 and the lower frame in which the extending portion 14 as described above is formed at both ends and the pair of vertical frames 2 in which the insertion holes 24 are formed in the upper and lower ends are prepared, and the extending portion 14 is inserted. The upper frame 1, the lower frame, and the vertical frame 2 are temporarily assembled while being inserted into the hole 24.
And the intersection part of the upper frame 1 and the vertical frame 2 which were temporarily assembled is set to a press apparatus. At this time, the extended portion 14 of the upper frame 1 protruding from the prospective surface portion 21 of the vertical frame 2 is positioned between the pair of clamping members P1 and P2, and as shown in FIGS. 4 (A) and 6 (A). In addition, the upper frame 1 and the vertical frame 2 are positioned so that the leading ends of the sandwiching members P1 and P2 come into contact with the prospective surface portion 21 of the vertical frame 2. And although illustration is abbreviate | omitted, similarly on the other edge part side of the upper frame 1, the upper frame 1 and the vertical frame 2 are set to the other press apparatus.

As described above, in the state where the upper frame 1 and the vertical frame 2 are set in the press device, the slide plate is moved by the driving force of the driving unit, as shown in FIGS. 4B and 6B. The pair of clamping members P1 and P2 move in a direction approaching each other, and the claw portions P11 and P21 cut the tip of the extension portion 14 by shearing, and the protrusions 15A and 15A are cut by one and the other claw portions P11 and P21. 15B is deformed in opposite directions.
Here, the claw portions P11 and P21 of the sandwiching members P1 and P2 shown in FIG. 4 are inclined surfaces P12 and P22 (surfaces on the other side of the prospective surface portion 21) that incline toward the prospective surface portion 21 of the vertical frame 2. As shown in FIG. 5, the inclined surface P12 and P22 are used for shearing from the distal end of the extending portion 14 toward the proximal end side. The sandwiching members P1 and P2 are configured to deform along the prospective surface portion 21 while bending and deforming the protrusions 15A and 15B. In addition, the inclined surfaces P12 and P22 formed on the one and the other claw portions P11 and P21 do not overlap with each other in the applied state, that is, the base ends of the deformed protrusions 15A and 15B are in contact with each other. It is comprised so that it may be in the state.

On the other hand, the claw portions P11 and P21 of the clamping members P1 and P2 shown in FIG. 6 have vertical surfaces P13 and P23 that are substantially orthogonal to the prospective surface portion 21 of the vertical frame 2 (vertical that is approximately orthogonal to the surface on the other side of the prospective surface portion 21. Surface) is formed. The claw portions P11 and P21 having such vertical surfaces P13 and P23 shear the projections 15A and 15B along the prospective surface portion 21 without cutting and bending the tip of the extension portion 14 by shearing. Deform.
Further, the vertical surfaces P13 and P23 formed on the one and the other claw portions P11 and P21 do not overlap with each other in the applied state as shown in FIG. A part of 15A, 15B is configured to be continuous (integrally continuous).
As described above, the protrusion 15 of the upper frame 1 is brought into contact with the edge of the insertion hole 24 in the prospective surface portion 21 of the vertical frame 2 and the upper frame 1 and the vertical frame 2 are joined together. After the release, the upper frame 1 and the vertical frame 2 are removed from the mounting table. Following this, the lower frame and the vertical frame 2 are joined in the same procedure as described above, and the joining operation of the window frame W is completed.

According to this embodiment, there are the following effects.
(1) That is, the front end of the extension part 14 formed in a plate shape is cut by the sandwiching members P1 and P2 to be divided into a plurality of protrusions 15, and the adjacent protrusions 15A and 15B are deformed in the reverse direction. Thus, it is not necessary to form a plurality of protrusions and insertion holes in advance, so that the processing effort can be reduced. Furthermore, by cutting and deforming the tip of the extension part 14 using the clamping members P1 and P2 of the press device, it is possible to achieve uniform processing and improve the processing accuracy of the joint part and ensure the joint strength. In addition, the processing time can be shortened by automation. Further, compared with a conventional structure in which a plurality of projecting pieces and a plurality of insertion holes are engaged with each other, in the present invention, one extending portion 14 is divided into a plurality of projecting portions 15A and 15B. The length dimension of the protruding portion 14 (dimension in the prospective direction) can be shortened as compared with the conventional case, and space-saving joining is possible, or the length dimension of the extending portion 14 is increased in the same space or the protruding portion The number of 15A and 15B can be increased, and the bonding strength can be increased as compared with the conventional case.

(2) Further, the force from the pressing device does not act in the longitudinal direction of the upper frame 1 by clamping the extending portion 14 of the upper frame 1 with the clamping members P1 and P2 from both sides in the plate thickness direction. The buckling of the upper frame 1 and the lower frame which are materials can be prevented. Therefore, even if the clamping force of the clamping members P1 and P2 is increased, the frame material can be hardly buckled. Therefore, the expected length of the extending portion 14 to be processed at a time can be increased, or the number of the protrusions 15 to be formed can be increased. Increasing the bonding strength can increase the bonding strength.

(3) Further, by cutting the tip of the extended portion 14 with the engageable claws P11 and P21 formed on the pair of clamping members P1 and P2, the cutting accuracy by shearing is improved and the cutting is stopped after cutting. Thus, the protrusion 15 can be deformed without increasing the machining accuracy and the machining speed. At this time, if the claw portions P11 and P21 having the inclined surfaces P12 and P22 are used, the tip of the extending portion 14 can be cut with a relatively small clamping force. On the other hand, if the claw portions P11 and P21 having the vertical surfaces P13 and P23 are used, even if the protruding amount at the tip of the extending portion 14 is small, the protruding portion 15 can be reliably cut and deformed so that the protruding portion 15 is displaced.

(4) Since the lengths and the numbers of the protrusions 15A and 15B deformed in the opposite directions are set to be the same, the bonding force acting on the individual protrusions 15 becomes uniform, and the specific It is possible to prevent a ruptured state that breaks ahead of the protrusion 15 and further improve the bonding strength. Further, since the force sandwiched between the pair of sandwiching members P1 and P2 is balanced, reaction force during processing can be hardly generated, and thus the manufacturing apparatus can be simplified. In addition, since the adjacent protrusions 15A and 15B are in contact with each other and are formed in a continuous state, it is possible to transmit force between the protrusions 15 when an external force is applied, The breaking strength of the protrusion 15 can be increased.

In addition, this invention is not limited to the said embodiment, Including other structures etc. which can achieve the objective of this invention, the deformation | transformation etc. which are shown below are also contained in this invention.
For example, in the above-described embodiment, the window frame W (frame body) used for the sash window as a joinery has been described as an example. However, the joining structure in the present invention is not limited to the one applied to such a sash window, The present invention may also be applied to various building materials such as frame frames, handrails, fences, lattices (face lattices), gates, interior materials and exterior materials. Further, the joining structure of the present invention is not limited to the window frame W, and may be ones that join the shoji screen materials (upper, lower, and vertical) supported by the window frame.
Furthermore, as a to-be-joined material, the various structural materials used in addition to joinery, building materials, etc., decoration materials, etc. may be sufficient. That is, the present invention can be widely applied to a joining structure in which a pair of materials to be joined are joined together.

Moreover, in the said embodiment, although the upper frame 1 and the lower frame were made into one to-be-joined material and the vertical frame 2 was made into the other to-be-joined material, it extended to the edge part by making the vertical frame 2 into one to-be-joined material. May be formed, and the upper frame 1 or the lower frame may be used as the other material to be joined and an insertion hole may be formed in the vicinity of the end thereof.
Further, an insertion hole may be formed in the vicinity of the upper end portion of the vertical frame, and an extension portion may be formed at the lower end portion thereof. In this case, the vertical frame constitutes one and the other joined materials. Thus, the upper frame constitutes one material to be joined and the lower frame constitutes the other material to be joined. That is, in the pair of frame members that are crossed and joined to each other, it is possible to arbitrarily set whether the extension portion is formed on one side and the insertion hole is formed on the other side, and is limited to the above-described examples. It is not something.

In the above embodiment, the number of the protrusions 15A and 15B that are deformed in the opposite directions is set to three, and a total of six protrusions 15 are formed. The number of 15 is not particularly limited as long as it is provided with a pair of protrusions that are deformed at least in the reverse direction. That is, the protrusions 15A and the protrusions 15B may be formed one by one, two by two, or four or more. Further, the number of protrusions 15A and 15B deformed in opposite directions may not be the same, and a combination in which one protrusion 15A is one and the other protrusion 15B is two may be employed.
Furthermore, in the said embodiment, although the one extension part 14 was formed in the upper frame 1 which is one to-be-joined material, and the one insertion hole 24 was formed in the vertical frame 2 which is the other to-be-joined material, A plurality of sets of extending portions and insertion holes may be provided at the joining positions of the frame members. In this case, if a plurality of sets of sandwiching members P1 and P2 are provided in the press device, the extended portions at a plurality of locations can be cut and deformed by a single applied force, resulting in a complicated joining operation. Therefore, the bonding strength can be improved.
In the above embodiment, a pair of materials to be joined is joined using a press device, but the equipment and equipment used for joining are not limited to the press device, and the leading end of the extending portion is sandwiched from both sides in the plate thickness direction. Any clamping means can be used as long as it can be deformed by.

In addition, the best configuration, method, and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

It is a perspective view which shows the principal part of the window frame which comprises the joinery which concerns on embodiment of this invention. It is a perspective view which shows the state before the framework of the said window frame. (A), (B) is a front view which shows the clamping member of the said press apparatus. (A)-(C) are the figures explaining the joining procedure of the said frame materials. It is a perspective view which shows one to-be-joined material after a process. (A)-(C) are the figures explaining the joining procedure of the said frame materials. It is a perspective view which shows one to-be-joined material after a process.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Upper frame which is one to-be-joined material, 2 ... Vertical frame which is the other to-be-joined material, 11 ... Expected surface part, 14 ... Extension part, 15, 15A, 15B ... Projection part, 21 ... With to-be-joined surface part A certain prospective surface part, 24 ... insertion hole, P1, P2 ... clamping member, P11, P21 ... claw part, P12, P22 ... inclined surface, P13, P23 ... vertical surface, W ... window frame which is a frame.

Claims (3)

A joining method for joining a pair of materials to be joined together,
Of the pair of materials to be joined, one material to be joined has a plate-like extension portion extending toward the other material to be joined at the longitudinal end portion, and the other material to be joined is the extension member. It has a to-be-joined surface part in which an insertion hole through which the protruding part can be inserted is formed,
A pair of clamping members having opposed surfaces which Rutotomoni deform across the tip of the extending portion from both sides, the claw portion can be meshed with each other when approaching is formed,
With the tip of the extending part inserted into the insertion hole from one side of the joined surface part protruding toward the other side of the joined surface part, the pair of clamping members are moved toward each other to extend the extension. together sandwiching the tip of the detecting portion, and a tip end of the said extending portion in engagement claw portion of the clamping member is cut by shearing at least one location is divided into a plurality of protrusions, adjacent to each other with the cutting position bonding method protrusion is deformed in the opposite directions in one and the other of said pawl portion, each protrusion is deformed by contact with the object to be bonded face to be joined together a pair of the welded material. The claw portion has an inclined surface that is inclined so as to form an acute angle with the surface on the other side of the bonded surface portion,
The joining method according to claim 1, wherein the protrusion is bent and deformed by pressing the protrusion cut by the shear with the inclined surface. The claw portion has a vertical surface substantially orthogonal to the surface on the other side of the bonded surface portion,
The joining method according to claim 1, wherein the projecting portion is deformed so as to be displaced in a moving direction of the holding member by pressing the projecting portion cut by the shear with the vertical surface.

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