JP6587897B2 - Nozzle member for seam processing - Google Patents

Description

  The present invention relates to a novel nozzle member for seam processing.

  When an interior sheet such as a flooring is laid, a butt portion where edges of interior sheets adjacent to each other face each other is generated. The butting portion is a portion where the edges of the interior seat are in contact with each other, or a portion facing each other with a minute interval. Such a butting portion serves as a water entrance and allows water to penetrate into the ground. For this reason, processing (hereinafter also referred to as “seam processing”) for forming a seam portion, which is a portion that serves to integrally join the interior sheet, is performed in the abutting portion.

  Various methods have been proposed as a method for performing the seam treatment, but a method generally called a seam method has an advantage that the seam processing can be easily performed, and a formed joint is not conspicuous. So it is widely adopted.

  In the seam construction method, a floor material is stuck on the base via an adhesive, and a seam liquid injection nozzle is inserted into a butt portion formed between the stuck floor materials, and the injection nozzle is placed along the butt portion. This is a seam construction method for flooring characterized by injecting seam liquid while moving. In this case, the gap formed at the butt portion has a width of about 0 to 0.3 mm.

  In the seam construction method, when the adhesive (also referred to as a seam liquid) is filled in the butt portion, it is necessary to uniformly and sufficiently inject the seam liquid into the narrow gap as described above. For this reason, the operation | work which takes out a seam liquid from the front-end | tip part and inject | pours into a clearance gap using the nozzle by which the front-end | tip part was processed thinly is performed.

  As a nozzle used in such an application, for example, a tube having a circular cross section is crushed into an elliptical cross section, and further, the front half of the tip is completely crushed to close the opening, and the opening in the latter half is slanted. A filling material-filled nozzle that has been cut off is known (Patent Document 1).

  In addition, for example, a seam tool is known in which a cap is fixed to a tip of a container with a screw, and a cap and a fin are attached to the tip of the cap (Patent Document 2).

  However, in these nozzle members, since the seam liquid flows from the discharge hole formed at the tip of the nozzle having the hollow tube, the resin component contained in the seam liquid remaining in the discharge hole is solidified. As a result, nozzle clogging is likely to occur. Once the resin component has solidified in the nozzle, it is very difficult to remove it. In addition, since the gap between the butted portions is narrow, in order to efficiently perform the seam processing, it is desirable that the tip portion of the nozzle is thin, but if it is too thin, nozzle clogging is likely to occur. Such a problem becomes more prominent as the resin component (solid content) in the seam liquid increases.

  Moreover, since such a nozzle is formed from a hollow tube, if it is made thin, it will be difficult to maintain its strength, and manufacturing will be more difficult.

  In order to reduce such a problem of the clogging of the discharge holes, a seam construction member composed of each component as shown in FIG. 20 is widely used. This member is composed of a solid metal needle 64, a split pipe 63, a nozzle body portion 62, and a nozzle tip portion 61, and is used by being mounted on a seam liquid bottle (not shown). After passing the metal needle 64 through the split pipe 63, the metal needle 64 is fixed to the split pipe 63 by pressing one part near the end of the split pipe 63 only on one side. This is passed through the nozzle tip 61 from the tip of the metal needle 64, and the metal needle 64 is projected from the opening of the nozzle tip 54. Next, the metal nozzle body 62 is fitted from the end side of the nozzle tip 54. In this way, the nozzle member 60 of the preceding example is completed.

  According to the seam method member of FIG. 20, as shown in FIG. 21 (a), the outer diameter of the circular nozzle opening 61a formed at the tip of the nozzle tip 61 is smaller than the inner diameter of the opening. Since the metal needle 64 having a diameter penetrates through the opening, the seam liquid is discharged through the ring-shaped gap 65 formed between the outer diameter and the inner diameter as a discharge hole, and the metal needle is used as it is. By flowing through 64 toward the tip, the seam liquid can be sent to the needle tip of the metal needle 64. By using the needle for the injection member in this way, the strength can be maintained even if it is thinned, and it can be manufactured more easily than a hollow tube type metal needle.

Japanese Utility Model Publication No. 61-10783 JP-A-8-157804

  In the seam construction member of FIG. 20, the metal needle 64 is arranged so as to be the center of the circular nozzle opening as shown in FIG. However, due to the fact that one part of the slit 63 is clamped only on one side, the metal needle 64 may actually be fixed slightly shifted from the center as shown in FIG. In such a case, since a wide part and a narrow part occur in the seam liquid flow path of the nozzle opening, it becomes impossible to control the discharge of the seam liquid well, and nozzle clogging easily occurs in the narrow part of the seam liquid flow path. This may cause problems such as becoming. In particular, as the content of the resin component contained in the seam liquid increases, the possibility of nozzle clogging increases accordingly.

  Moreover, in the seam construction member of FIG. 20, after assembling the parts, they are integrated in a state that is substantially impossible to disassemble by pressing, so that they are disassembled and assembled again and reused. It is a structure that can not be. For this reason, for example, when the discharge hole is clogged, the seam construction member must be immersed in the solvent for a long time in order to dissolve and remove the clogged resin component. In particular, when the resin component contained in the seam liquid is large, it is difficult to remove the solidified resin component, and the immersion time required for the removal also becomes long. Also, replacement of parts or cleaning for each part cannot be performed. For example, when a metal needle is worn or broken and broken, it is not possible to replace only the metal needle.

  Thus, although the seam construction member shown in FIG. 20 has been used for many years because it can exhibit relatively good performance, there is still room for further improvement in the above points. In particular, when the resin component contained in the seam liquid is increased, improvement is required.

  Therefore, a main object of the present invention is to provide a seam construction member that can be assembled and disassembled relatively easily and can supply a seam liquid more stably. In addition, it is an object of the present invention to provide a member for a seam method that can suitably use a seam solution having a large amount of resin components.

  As a result of intensive studies in view of the problems of the prior art, the present inventor has found that the above-mentioned object can be achieved by using a nozzle member having a specific structure for joint processing, and to complete the present invention. It came.

That is, the present invention relates to the following seam processing nozzle member.
1. A nozzle member for injecting a seam treatment agent into the abutting portion between interior sheets,
(1) The nozzle member has a needle part, a nozzle body part, and a nozzle tip part, which are connected to each other in a detachable state,
(2) The needle portion is disposed at the tip of the nozzle member, and has a needle-like body and a support portion for fixing the needle-like body,
(3) The nozzle body portion has (3a) a flow path (A) penetrating in the longitudinal direction, and (3b) a part or all of the support portion is inserted into the flow path (A) . by having a region (A1) capable of fixing the support part at least in the direction perpendicular to the direction, it has (3c) connection for connecting the nozzle tip (A3), in (3d) region (A1) The support is fitted,
(4) The nozzle tip (4a) has a flow path (B) penetrating in the longitudinal direction, and (4b) a connecting part (B3) for connecting with the connecting part (A3) of the nozzle body part. Have
(5) The needle-like body passes through the flow path (B) at the nozzle tip and protrudes from the opening on the tip side of the nozzle tip, and the opening and the needle-like body have a gap in the cross-sectional direction. However, the flow path (A) and the flow path (B) are connected by the connection portion (A3) and the connection portion (B3) so as to form one flow path ,
(6) The cross-sectional shape of the support portion is formed in a shape such that a seam treatment agent flows from the flow path (A) to the flow path (B).
The nozzle member for seam processing characterized by the above-mentioned.
2. The nozzle member for seam processing according to Item 1, wherein a control mechanism (A2) for controlling movement in the longitudinal direction of the inserted support portion is provided in the flow path (A) .
3. 1) The connecting portion (A3) is a first screw portion formed on the outer peripheral surface of the tip portion of the nozzle body portion, and 2) the connecting portion (B3) is the inner periphery on the end side of the flow path (B). 2. The joint processing nozzle according to claim 1, wherein the nozzle is a second threaded portion formed on the surface, and 3) the first threaded portion and the second threaded portion are respectively connected to each other as a female screw and a male screw by screwing. Element.
4). The processing tool including a container for housing the seam processing nozzle member according to any one of Items 1 to 3 and a seam processing agent, wherein an opening in the flow path (A) of the nozzle body of the nozzle member is provided. A seam treatment tool connected directly or indirectly to the opening of the container.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to assemble | assemble and disassemble parts comparatively easily, the nozzle member for a seam process which can supply a seam liquid more stably can be provided.

  In the present invention, since it is mainly composed of a needle portion having a specific structure, a nozzle body portion, and a nozzle tip portion, the central axis of the needle-like body can be stably disposed at substantially the center portion of the opening portion of the nozzle tip portion. The seam liquid can be discharged more uniformly and stably.

  Also, in the nozzle member for seam processing according to the present invention, unlike the conventional integrated nozzle member, each part can be easily assembled and disassembled by hand or the like, so that replacement of parts, cleaning of parts, etc. are easy. In addition, it can be performed in a relatively short time. In particular, it is possible to control the discharge amount, discharge speed, and the like of the seam liquid by properly using several types of support portions having different cross-sectional shapes (cross-sectional areas) in the needle portion. For example, even a high-viscosity seam liquid that is difficult to use with conventional nozzle members can be used relatively easily by appropriately replacing the needle portion of the member of the present invention.

  Furthermore, in the joint processing nozzle member of the present invention, since the needle portion can be easily fixed by the support portion, a relatively short needle-like body can be used effectively. In the integrated nozzle member as in the preceding example, a relatively long metal needle must be prepared in order to fix the end portion of the metal needle by pressing, resulting in shortening the metal needle. Is difficult. On the other hand, in the present invention, since a fixing method that does not rely on pressing is employed, a short needle-like body can be introduced. Further, since the support portion of the needle portion is disposed at the tip of the nozzle body portion, the seam liquid can be used up to the end.

  The joint processing nozzle member of the present invention having such characteristics can be suitably used as a tool for injecting a seam liquid into a joint of an interior sheet such as a flooring material or a wall material.

It is a figure which shows the needle part of the nozzle member of this invention. It is sectional drawing of the nozzle body part of the nozzle member of this invention. It is sectional drawing of the nozzle front-end | tip part of the nozzle member of this invention. FIG. 4 is a cross-sectional view of a state where a support portion 2 is attached to a flow path A. FIG. 4A shows a cross section of the support portion having a substantially plate shape, FIG. 4B shows a cross section of the support portion having a substantially cross shape, and FIG. 4C shows a cross section of the support portion having a substantially triangular shape. FIG. 4 is a cross-sectional view of a state where a support portion 2 is attached to a flow path A. 5A is substantially the same plate shape as FIG. 4C, FIG. 5B is a shape in which each side of the triangle is curved inward, and FIG. 5C is a shape in which each side of the triangle is curved outward. Respectively. It is a figure which shows the example of a procedure until assembling a needle | hook part, a nozzle body part, and a nozzle front-end | tip part and completing this invention nozzle. The nozzle member produced in Example 1 is shown. 7A is a cross-sectional view, and FIG. 7B is an external view. The needle part of the nozzle member produced in Example 1 is shown. 8A is an external view of the nozzle member as viewed from the side, and FIG. 8B is an external view of the nozzle member as viewed from the bottom of the support portion. The nozzle body part of the nozzle member produced in Example 1 is shown. 9A is a sectional view of the nozzle body viewed from the side, FIG. 9B is an external view of the nozzle body viewed from the side, and FIG. 9C is an external view of the nozzle body viewed from the tip side. Each figure is shown. The nozzle front-end | tip part of the nozzle member produced in Example 1 is shown. FIG. 10A is an external view of the nozzle tip viewed from the side, and FIG. 10B is a cross-sectional view of the nozzle tip viewed from the side. It is a figure which shows the state which laid the flooring sheet | seat as an interior sheet. It is a figure which shows the state which affixed the adhesive tape on the butt | matching part formed in the vertical direction. It is sectional drawing which shows the outline | summary of the procedure which performs the joint process of a flooring sheet | seat using the nozzle member of this invention. It is sectional drawing which shows the outline | summary of another procedure which performs the joint process of a flooring sheet | seat using the nozzle member of this invention. It is sectional drawing which shows an example in the case of forming stopper part A2 in a nozzle body part. It is sectional drawing which shows an example in the case of forming stopper part B2 in a nozzle front-end | tip part. It is a figure which shows an example of the processing tool containing the container for accommodating the nozzle member and seam processing agent of this invention. It is a figure which shows an example of the processing tool containing the container for accommodating the nozzle member and seam processing agent of this invention. The needle part of the nozzle member produced in Example 2 is shown. FIG. 19A shows an external view of the nozzle member as seen from the side, and FIG. 19B shows an external view of the nozzle member as seen from the bottom surface of the support portion. It is a figure which shows the components and completed product of the conventional seam liquid nozzle member. It is sectional drawing which shows the positional relationship of a needle part and a flow path.

1. Nozzle member for seam treatment The nozzle member for seam treatment of the present invention (member of the present invention) is a nozzle member for injecting a seam treatment agent into the abutting portion between interior sheets,
(1) The nozzle member has a needle part, a nozzle body part, and a nozzle tip part, which are connected to each other in a detachable state,
(2) The needle portion is disposed at the tip of the nozzle member, and has a needle-like body and a support portion for fixing the needle-like body,
(3) The nozzle body has (3a) a flow path A penetrating in the longitudinal direction, and (3b) in the flow path A, by inserting a part or all of the support portion, A region A1 in which the support portion can be fixed in a direction perpendicular to the direction, and (3c) a connecting portion A3 for connecting to the nozzle tip,
(4) The nozzle tip has (4a) a flow path B penetrating in the longitudinal direction, and (4b) has a connecting part B3 for connecting to the nozzle body part,
(5) The needle-like body penetrates the flow path B at the nozzle tip and protrudes from the opening on the tip side of the nozzle tip, and the opening and the needle-like body have a gap in the cross-sectional direction. The flow path A and the flow path B are connected by the connection part A3 and the connection part B3 so as to form one flow path.
It is characterized by that.

  As described above, the main components of the member of the present invention include the needle portion, the nozzle body portion, and the nozzle tip portion. For this reason, in the member of the present invention, in addition to these components, other components may be attached or mounted as necessary.

  In FIG. 1, an example of the needle | hook part which is a component of this invention member is shown. In FIG. 2, an example of the nozzle body part 2 which is a component of this invention member is shown. In FIG. 3, an example of the nozzle front-end | tip part which is a component of this invention member is shown. Moreover, the product which attached this invention member 10 to the container 51 is shown in FIG.17 and FIG.18. Hereinafter, the members of the present invention will be described in detail with reference to these drawings.

  In the member of the present invention, unless otherwise specified, when the entire nozzle member 10 is viewed, the needle portion 1 of the nozzle member (more specifically, the distal end direction of the needle-like body) is the “tip” and the opposite direction ( The direction in which the container opening is connected) is referred to as the “end”.

  The seam treatment agent used in the member of the present invention is a liquid composition for joining the butted portions of the interior sheet. In addition to a resin-containing seam liquid (solution type or emulsion type) containing a resin component, one or two types are used. Any of solvent-type seam liquids composed of more than one type of solvent is included. In other words, any known or commercially available seam liquid can be applied to the member of the present invention.

(1) Needle part
As shown in FIG. 1, the needle portion 1 is disposed at the tip of the nozzle member 10 and has a needle-like body 11 and a support portion 12 for fixing the needle-like body 11 to the nozzle body portion 2. The support portion 12 and the needle-like body 11 may be integrally formed, or the support portion and the needle-like body that are separately prepared in advance may be joined together by welding or the like.

  The needle-like body 11 has a pointed tip, is connected to the outer surface, and a seam treatment agent is sent to the tip. The material of the needle-shaped body is not particularly limited, and may be any of metal, ceramics, plastics, and the like. In particular, since the needle tip is relatively strong and pressed against the interior sheet or base when the seam treatment agent is injected, a material that can withstand the pressure is preferable. From this point of view, it is preferable to be made of a metal or alloy such as stainless steel, steel or iron. In particular, from the viewpoint of strength, workability, etc., iron or an iron-based alloy (stainless steel, steel, etc.) is preferable in the present invention, and stainless steel is particularly preferable because it is difficult to rust.

  The thickness, length, sharpness, and the like of the needle-like body 11 can be appropriately changed according to the site to be applied, the type of seam treatment agent to be used, and the like. For example, the needle-like body 11 can be set so that the thickness of the base is 1 to 2 mm and the length is 10 to 20 cm.

  The shape of the needle-like body 11 may be any of various shapes such as a circle, an ellipse, a triangle, and a rectangle. The shape of the needle 11 is not particularly limited, but the cross-sectional shape is strong because of its high strength and excellent workability and workability. Most preferably it is circular.

  The support portion 12 has a function of fixing the needle-like body 11 to the nozzle body portion 2. Further, the support portion 12 functions as a connecting portion with the nozzle body portion 2 and also has a role of controlling the flow rate of the seam treatment agent.

  When the needle part 1 is connected to the nozzle body part 2, the support part 12 is fitted into the area A <b> 1 of the nozzle body part 2. Thereby, a support part is fixed at least to the orthogonal | vertical direction (a-a 'direction) with respect to the elongate direction of a nozzle body part. In this case, the wobbling of the needle-like body 11 in the perpendicular direction can be more effectively suppressed as the outer dimension of the support part 12 and the inner dimension of the region A1 of the body part 2 are closer. Further, the wobbling of the needle-like body 11 can be suppressed as the contact area between the outer surface of the support portion 12 and the region A1 of the trunk portion 2 is larger and the number of contact portions is larger.

  In this case, it is necessary to provide the flow path A and / or the support part 12 with a cross-sectional shape that can ensure the flow of the seam treatment agent. In particular, it is preferable that the cross-sectional shape of the support portion 12 is formed such that the seam treatment agent flows from the flow path A to the flow path B from the viewpoint of the ease of processing the member. As a result, several types of support portions 12 having different cross-sectional areas can be used properly, and as a result, the flow rate of the desired seam treatment agent can be appropriately adjusted. On the other hand, it is also possible to use the support part 12 properly according to the viscosity of the seam treating agent. For example, when the flow path area is the same, the higher the viscosity of the seam treatment agent, the slower the discharge speed. However, by using a support having a small cross-sectional area, a desired seam treatment agent discharge speed can be ensured. .

  The cross-sectional shape of the support portion 12 is not particularly limited as long as a desired seam treating agent flow rate can be secured, and can be set as appropriate. The shape of the support portion 12 is preferably designed so as to balance the two viewpoints of the wobbling suppression of the needle portion 1 and the seam treatment agent discharge speed.

  For example, as shown in FIG. 4, the support portion 12 may employ various shapes such as a substantially plate shape (a), a substantially cross shape (b), and a substantially triangular shape (c) as the cross-sectional shape. it can. FIGS. 4A to 4C show a state where the support portion 12 is inserted in the case where the cross section of the flow path A is circular.

  As shown in FIG. 4A, by inserting a substantially plate-like support portion 12 into the flow path A of the nozzle body 2, the flow path becomes narrower, and as a result, the discharge amount of the seam treatment agent can be controlled. it can. At this time, for example, in FIG. 4A, if the needle part having the support part 12 having a thinner plate shape is replaced, a larger amount of seam treatment agent discharge can be obtained. On the other hand, if the needle part 1 is replaced with the needle part 1 having the thicker support part 12, the contact area between the outer surface (side surface) of the support part 12 and the region A1 of the body part 2 is increased. The wobble can be further suppressed.

  FIG. 4A shows the support 12 having a substantially plate-like cross section. In this shape, by adjusting the plate-like thickness, it is possible to easily balance the suppression of wobbling of the needle portion 1 (particularly the needle-like body 11) and the seam treatment agent discharge speed. In addition, it has the merit of being easy to manufacture and inexpensive.

  FIG. 4B shows the support portion 12 having a cross-shaped cross section. In this shape, by inserting into the flow path A, there are four contact locations between the outer surface of the support portion 12 and the region A1 of the body portion 2, and the needle portion 1 ( In particular, the wobbling of the needle-like body 11) can be further suppressed.

  FIG. 4C shows the support 12 having a substantially triangular cross section. In this shape, by inserting into the flow path A, there are three contact points between the outer surface of the support part 12 and the region A1 of the body part 2, and the needle part 1 while ensuring the discharge amount of the seam treatment agent. The wobble of the needle-shaped body 11 (especially the needle-like body 11) can be further suppressed. The substantially triangular support portion 12 is particularly preferable because it has a good balance between the wobbling suppression of the needle portion 1 and the seam processing agent discharge speed and is relatively easy to process.

  Further, in the configurations as shown in FIGS. 4A to 4C, the discharge amount and the like can be accurately controlled by slightly changing the cross-sectional shape. For example, as shown in FIG. 5, a cross-sectional shape in which each side is curved inward with respect to the substantially triangular support portion 12 (FIG. 5C) as shown in FIG. ) Can be used to increase the discharge amount of the seam treatment agent. On the contrary, the discharge amount of the seam treatment agent can be reduced by adopting a cross-sectional shape (FIG. 5 (c2)) in which each side is curved outward. Thus, by changing the shape of the curvature of each side, even when the seam treatment agent to be used is changed, the discharge amount can be easily adjusted.

  As shown in FIG. 1, the support part 12 may have a tapered part 13 in which a part of the tip side of the support part 12 gradually decreases in cross-sectional area toward the tip of the needle-like body. By providing the tapered portion 13, when connecting with the nozzle tip portion 3, for example, the stopper portion B <b> 2 of the flow path B of the nozzle tip portion 3 is pressed with a strong pressure, so that the needle portion 1 and the nozzle tip portion are connected. This can contribute to a strong connection.

  Furthermore, as shown in FIG. 1, a taper-like portion 14 that gradually decreases in cross-sectional area toward the end may be provided on the end side of the support portion 12 as necessary. This facilitates insertion of the support portion 12 into the flow path B.

(2) Nozzle body part As shown in FIG. 2, the nozzle body part 2 has the flow path A penetrated in the longitudinal direction. A seam treatment agent flows through the flow path A.

  The cross-sectional shape of the flow path A is not particularly limited, and may be any of a circular shape, an elliptical shape, a rectangular shape, and the like, but is preferably circular from the viewpoint of workability and the like. Further, the size of the cross section of the flow path A is not limited, but can usually be set as appropriate within the range of the inner dimension of about 2 to 6 mm. Therefore, for example, when the cross-sectional shape of the flow path A is circular, it can be in the range of 2 to 6 mm in diameter. A region A1 is formed so that the support portion 12 can be inserted from the opening 21 of the nozzle body portion 2 on the distal end side or the distal end side of the flow path A. In this case, for example, as shown in FIG. 2, a structure in which a part or all of the support portion 12 can be inserted from the opening 21 on the distal end side of the flow path A can be adopted.

  The flow path A has a region A1 in which the support portion can be fixed at least in a direction perpendicular to the direction by inserting a part or all of the support portion 12. The support portion 12 is inserted into this area A1. Thereby, the support part 12 is fixed at least in the direction perpendicular to the direction. For example, in FIG. 2, it can be fixed at least in the a-a 'direction. In addition to the case where the support portion 12 is completely fixed in a state in which the support portion 12 does not move at all in this direction, the fixing in this case may cause trouble when the seam treatment is performed using the member of the present invention. It is also acceptable to move finely within the range that does not come.

  A method for performing such fixing is not limited. For example, by forming a part or all of the side surface of the support portion 12 into contact with the inner surface of the nozzle body portion 2 in the region A1, the length of the nozzle body portion 2 is increased. The support part 12 can be fixed in a direction perpendicular to the direction. For example, as shown in FIG. 4, if the outer dimensions of the cross section of the support portion 12 and the inner dimensions of the cross section of the region A1 of the nozzle body portion 2 are substantially the same, a part or all of the side surface of the support portion is the region A1. Therefore, the movement of the support portion 12 in at least the aa ′ direction can be suppressed by the contact surface.

  Here, when the support portion 12 is inserted into the region A1, as shown in FIG. 2, the support portion 12 in the inserted support portion 12 is prevented from entering the region A1 (or the flow path A) too deeply. It is desirable that a control mechanism A2 for controlling the movement in the longitudinal direction is provided inside the flow path A. The construction method of the control mechanism is not particularly limited as long as it can limit the movement of the support portion 12 in the direction parallel to the longitudinal direction of the nozzle body portion 2 within a range where the seam processing is possible. In other words, in the direction parallel to the longitudinal direction of the nozzle body 2, the means for fixing the support 12 so as not to move substantially, or the support 12 can move within a certain range, but beyond that range. A means for fixing so that it cannot move can be adopted. More specifically, these means include, for example, a method of forming a stopper portion in the flow path A as shown in FIG. 2, a spring that can receive the support portion, a hollow solvent-resistant elastic body (rubber, etc. A method of loading an elastic member such as) into the flow path A can be employed. Below, the case where the stopper part A2 is formed in the flow path A as an example of the control mechanism will be described.

  The form of the stopper part A2 is not particularly limited as long as it does not hinder the flow of the seam treatment agent. For example, as shown in FIG. 2, when the cross-sectional shape of the flow path A is circular, the flow other than the area A1 By setting the channel A to a channel having an inner diameter smaller than the diameter of the support portion 12, a step caused by the inner diameter difference can be used as the stopper portion A2. In addition, for example, as shown in FIG. 15, with the same inner diameter over the entire flow path A, a convex portion is formed in the flow path A at a position within a range where a part of the support portion 12 can be inserted into the flow path A. By forming, it can be set as the stopper part A2.

  In the nozzle body part 2, a part or all of the support part 12 is fitted into the flow path A1 so that the seam treatment agent flows. Here, “the whole is fitted” means that the surface of the front end side of the support portion 12 and the surface of the opening portion 21 of the flow path A substantially coincide with each other after the fitting. In the present invention, it is desirable that a part of the support portion 12 is fitted to the flow path A1 in that the needle portion 1 can be more firmly fixed. That is, it is desirable that a part of the support portion 12 is fixed so as to protrude from the opening portion 21. By doing in this way, as a result of the said protrusion part being pressed by the nozzle front-end | tip part 3, the support part 12 can be firmly fixed with an up-down pressure.

  The nozzle body 2 has a connecting portion A3 for connecting with the nozzle tip. By this connection part A3, it connects with the nozzle front-end | tip part 3 in a detachable state.

  The shape or form of the connecting portion A3 is not particularly limited, and examples thereof include screw fixing (screw fixing), fluid quick coupling, coupling fixing such as a one-touch joint, and the like. For example, in the case of screw fixing, a screw portion A3 is provided on the outer periphery of the tip of the nozzle body 2 so that the nozzle body is screwed and fixed to the nozzle tip. The threaded portion A3 is preferably formed directly by cutting the outer periphery of the tip portion of the nozzle body portion 2 from the viewpoint that a high bonding strength can be obtained. Further, screw fixing is preferable because it is relatively easy to process and can be formed with a simple configuration.

  As shown in FIG. 2, the nozzle body portion 2 may be provided with one or more anti-slip portions 23 on the surface as necessary. This facilitates handling with fingers when attaching each component, and in particular, the nozzle body 2 and the nozzle tip 3 can be firmly fixed with fingers.

  The material of the nozzle body 2 is not particularly limited, but is preferably made of a metal or alloy such as brass, iron, stainless steel or the like in that a stronger connection can be realized. Brass is particularly preferred because it is easy to process and is relatively resistant to rust.

(3) Nozzle tip portion As shown in FIG. 3, the nozzle tip portion 3 has a flow path B penetrating in the longitudinal direction. The seam treating agent flows through the flow path B.

  The cross-sectional shape of the flow path B is not particularly limited, and may be any one of, for example, a substantially circular shape, a substantially elliptical shape, and a substantially rectangular shape, but is preferably circular from the viewpoint of workability and the like. Further, the size of the cross section of the flow path B is not limited, but can be appropriately set within the range of the inner dimension of about 1.5 to 4 mm. Therefore, for example, when the cross-sectional shape of the flow path B is circular, the diameter can be within a range of 1.5 to 4 mm.

  On the end side of the flow path B, a connecting portion B3 for connecting to the nozzle body portion 2 is provided. This connection part B3 is used for coupling | bonding with the said connection part A3. As a mode of connection, for example, as shown in FIG. 7, the needle-like body 11 penetrates the flow path B of the nozzle tip, protrudes from the opening 21 on the tip of the nozzle tip, and the opening 21 It is desirable that the flow path A and the flow path B are connected by the connection part A3 and the connection part B3 so as to form a single flow path, while having a gap in the cross-sectional direction. As described above, the coupling portion B3 is coupled to the coupling portion A3, so that the nozzle tip portion 3 and the nozzle body portion 2 can be coupled with each other in a detachable state.

  The shape or form of the connecting portion B3 is not limited, and examples of the connecting portion A3 include screw fixing (screwing), fluid quick coupling, coupling fixing such as a one-touch joint, and the like. For example, in the case of fixing by screwing, a threaded portion B3 is formed on the inner peripheral surface on the end side of the flow path B. And the area | region B2 which can insert the front-end | tip of the nozzle trunk | drum 2 into the flow path B is formed so that the said thread part B3 and the said thread part A3 may become a female screw and a male screw, respectively, and are mutually connected by screwing. . Thereby, the front-end | tip part of the nozzle body part 2 can be inserted in area | region B1. In addition, since a threaded portion B3 is formed on the inner periphery of the region B1, this is a female thread, the threaded portion A3 of the nozzle body 2 is a male thread, and the nozzle tip 3 is connected to the nozzle body 2・ Fixed.

  Further, in the flow path B, a stopper portion B2 for receiving the support portion 12 is formed in the region B1 so that the support portion 12 of the needle portion 1 does not move to the tip side of the flow path B and wobble. Yes. Thereby, the needle part 1 can be fixed so as to be sandwiched between the nozzle body part 2 and the nozzle tip part 3.

  The form of the stopper part B2 is not particularly limited as long as it does not hinder the flow of the seam treatment agent. For example, as shown in FIG. 3, when the cross section of the flow path B is circular, the flow paths other than the area B1 By forming a flow path having an inner diameter smaller than the longest diameter of the support portion 12 in B, a step caused by the difference in inner diameter can be used as the stopper portion B2. In addition, for example, as shown in FIG. 16, the same inner diameter is provided over the entire flow path B, and a convex portion is provided in the flow path B at a position within a range where a part of the support portion 12 can be inserted into the flow path B. By forming, stopper part B2 can be formed.

  As shown in FIG. 3, it is preferable that the stopper B2 of the flow path B is formed so that the inner diameter becomes smaller toward the tip. As a result, the support portion 12 is strongly pressed against the flow path B like a wedge while abutting the tapered portion 13 of the support portion 12 of the needle portion 1, so that each component can be combined more firmly. .

  As shown in FIG. 3, one or more anti-slip portions 33 may be provided on the outer peripheral surface of the nozzle tip portion 3 as necessary. This facilitates handling with fingers when attaching each component, and in particular, the nozzle body 2 and the nozzle tip 3 can be connected relatively firmly with fingers or the like.

  The material of the nozzle tip is not particularly limited, but is preferably made of a metal or alloy such as brass, iron, stainless steel, or the like in that a stronger connection can be realized. Brass is particularly preferred because it is easy to process and is relatively resistant to rust.

2. Assembling the nozzle member for seam processing As shown in FIG. 6, for example, the member of the present invention includes 1) a step of inserting a part or all of the support portion 12 of the needle portion 1 into the region A1 of the nozzle body portion 2 (step 1). 2) The needle-like body 11 of the needle part 1 attached to the nozzle body part 2 is passed through the flow path B at the nozzle tip part, and is connected by the connection part A3 of the nozzle body part 2 and the connection part B3 of the nozzle tip part 3 It can produce by the method including the process to perform (process 2). These series of steps can be easily performed, for example, with a finger or the like without using a special tool. In this manner, the needle-like body penetrates the flow path B at the nozzle tip portion and protrudes from the opening portion 21 on the tip side of the nozzle tip portion, and the opening portion 21 and the needle-like body 11 are in the cross-sectional direction. It is possible to construct a structure in which the channel A and the channel B form one channel while having a gap.

  Further, when disassembling the member of the present invention, each component can be disassembled by the reverse procedure (that is, the order of step 2 → step 1). Also in this case, it can be easily performed with a finger or the like, usually without using a special tool.

  As described above, the member of the present invention can be repeatedly assembled and disassembled relatively easily with fingers and the like, so that, for example, each component can be easily cleaned and replaced in a relatively short time. it can.

3. Seam processing tool The present invention is a processing tool including the member 10 of the present invention and a container for containing the seam processing agent, wherein the opening 21 in the flow path A of the nozzle body 2 of the nozzle member 10 is provided in the container. A seam treatment tool that is directly or indirectly connected to the opening is also included.

  Examples of the seam processing tool connected “directly” include a mode in which the member 10 of the present invention and the container 51 are connected without interposing other members as shown in FIG. 17.

  As the above-mentioned “indirectly” connected seam processing tool, for example, as shown in FIG. 18, the member 10 of the present invention and the container 51 are connected via another member such as an adapter 52 or the like. The embodiment is mentioned.

  For example, a metal or an alloy, a solvent-resistant synthetic resin, or the like can be used for the container, the adapter, and the like. The size, shape, and the like can be appropriately set according to, for example, the type of seam treatment agent used, the site of use, and workability.

  Further, means for connecting the nozzle body 2 and the container opening of the member 10 of the present invention, connecting the nozzle body 2 and the adapter of the member 10 of the present invention, connecting the adapter and the container opening, etc. As long as 10 itself can be disassembled and assembled, it is not particularly limited. For example, known connecting means such as screwing, coupling fixation, adhesion, pressure bonding, and fitting can be appropriately employed.

4). Use of the member of the present invention (seam processing method)
The member 10 of the present invention can be used in the same manner as a known or commercially available nozzle member. For example, if this invention member 10 is attached to the opening part of the container filled with the seam treatment agent, it can be used for the seam treatment as it is. That is, by inserting the needle-like body 11 of the nozzle member 10 of the present invention into the abutting portion between the interior sheets and feeding the seam treating agent to the tip of the needle-like body 11, the seam treating agent can be injected into the abutting portion. .

  As the interior sheet, the use site, material, etc. are not particularly limited. As a use site | part, any of flooring, a wall material, etc. may be sufficient, for example. In addition, as a material, any of sheets made of various synthetic resins including vinyl chloride resin can be applied.

  Moreover, it does not restrict | limit especially as a joint processing agent, Well-known or a commercially available thing is applicable as a joint processing agent etc. The seam treatment agent includes a solvent that swells or dissolves a resin component constituting the interior sheet, and is also referred to as a dope cement. Specifically, 1) a seam treating agent composed of any one solvent selected from solvents such as tetrahydrofuran (THF), methyl ethyl ketone (MEK), cyclohexane and the like, and 2) one solvent Or a seam treatment agent in which a thermoplastic resin such as a vinyl chloride resin is dissolved or dispersed in a proportion of 50% by mass or less, preferably 15% by mass or less, more preferably 10% by mass or less in two or more mixed solvents. Can be used.

  In particular, in the present invention, even in the case of a seam treatment agent having a relatively high resin component content (solid content), the seam treatment can be performed by appropriately using several types of needle parts 1 having different cross-sectional shapes of the support part 12. It is possible to make the agent difficult to clog, and even if the seam treatment agent is solidified and clogged, it can be disassembled into components and easily cleaned. In this respect, the member 10 of the present invention is an optimal member for the seam treating agent having a large amount of the resin component as described above.

  As the solvent for the seam treatment agent, a solvent capable of swelling or dissolving the synthetic resin constituting the interior sheet is used. For example, when the interior sheet is made of a vinyl chloride resin, tetrahydrofuran or the like can be used as the solvent. In particular, by using a seam treatment agent in which the same kind of resin as the resin flooring is dissolved or dispersed, the same kind of resin is interposed in the joint, so that the butt portion having a relatively large width can be reliably closed. It is preferable because the water stoppage between the interior sheets is improved. For example, the resin of the same kind is preferably a vinyl chloride resin when the resin flooring is made of vinyl chloride resin.

  When the resin contained in the seam treatment agent is dissolved in a solvent, a solvent-soluble resin is used. On the other hand, when the resin is dispersed in a solvent, resin particles are emulsified or suspended. Used. In particular, when joining a vinyl chloride resin flooring material, by using a seam treatment agent in which particles of a vinyl chloride resin having a polymerization degree of 800 to 1500, preferably 1000 to 1300 are suspended, The effect of filling a minute gap is increased.

  The viscosity (23 ° C.) of the seam treatment agent is not particularly limited, but is preferably 1000 mPa · s or less, and preferably 500 mPa · s or less, because the liquid easily enters the abutting portion between the interior sheets and spreads uniformly. Is more desirable. If the viscosity of the seam treatment agent is too large, it may be difficult to enter the butt portion and it may be difficult to spread. On the other hand, if the viscosity of the seam treatment agent is too small, workability deteriorates, and the seam treatment agent may be inadvertently dropped on the surface of the interior sheet, so the viscosity of the seam treatment agent is 5 mPa · s. The above is preferable, and 10 mPa · s or more is more preferable. By setting to such a viscosity, it is hard to droop carelessly and workability | operativity becomes better. A known or commercially available material can be used as such a seam treatment material. For example, “PVC-COLD-WELDING LIQUID TYPE A”, “PVC-COLD-WELDING PASTE TYPE T” manufactured by Werner Muller GmbH, “Tori Super Seam Solution” manufactured by Toli Co., Ltd., etc. are suitable. In particular, “PVC-COLD-WELDING LIQUID TYPE A” is more suitable because it is adjusted to an appropriate viscosity. In addition, for example, a seam liquid disclosed in JP-A-8-157804 can be used for a vinyl chloride resin flooring.

  Further, since the support portion 12 of the needle portion 1 divides the flow path of the seam treatment agent in the flow path A of the nozzle body 2 and the flow path B of the nozzle tip portion, the seam treatment agent accommodated in the container 51 is removed. Has the effect of stirring. For this reason, even if the solvent component, the resin component, and the like in the seam treatment agent are separated, the seam treatment agent is agitated by the above-described effect, so that it can be supplied to the butt portion in a uniform state. it can.

  Furthermore, since the flow path A of the nozzle body part 2 and the flow path B of the nozzle tip part 3 are partially narrowed by the support part 12 of the needle part 1, when the container 51 is pressed and the seam treatment agent is discharged, The pressure of the seam treatment agent increases at the portion where the flow path is narrow. As a result, even if the seam treatment agent has a relatively high TI value, pressure can be applied to temporarily reduce the viscosity, and the seam treatment agent can be stably supplied to the butt portion. For example, the TI value of the seam treating agent is usually 1.5 or more, preferably 2.0 or more. The upper limit of the TI value of the joint treating agent is not particularly limited, but is usually 8.0 or less, preferably 7.0 or less.

<Embodiment>
In the first embodiment and below, an embodiment when performing seam treatment of a vinyl chloride resin floor material as an interior sheet using the member 10 of the present invention will be described with reference to the drawings.

  As shown in FIG. 11, the plurality of flooring materials 41 a to 41 d are arranged on a base (not shown) with their edges facing each other. In addition, in FIG. 12, although the four flooring materials 41a-41d are shown for convenience, the flooring A is not necessarily limited to four, and may be two or more. In addition, in FIG. 11, each of the flooring materials 41 a to 41 d is formed in a square shape in plan view, but is not limited thereto, for example, an arbitrary shape such as a rectangular shape in plan view, a triangular shape in plan view, and a regular hexagonal shape in plan view. The shape can be selected.

  A butt portion 42 is formed between the edge portions of the floor materials 41a to 41d. The abutting portion 42 is a slight gap generated between the abutting end surfaces. That is, after fixing the first flooring 41a on the ground, the second flooring 41b is laid so that the butted end surface of the second flooring 41b is in contact with the butted end surface. In this case, the abutting end faces are not necessarily in contact with each other over the entire edge part, or the contacting part is not in close contact so that water does not leak. A slight gap is formed through which moisture and the like pass. Such a gap is the butting portion 42. The width of the abutting portion 42 may be difficult to join if it is too large, and is usually 0 to 0.5 mm, preferably 0 to 0.3 mm.

  When the width of the butt portion 42 is 0 mm, the butt end surfaces are in contact with each other and there is no gap macroscopically, but microscopically, it is caused by minute unevenness existing on the butt end surface. Since the contacting part is not in close contact without water leakage, it is necessary to join the butted part.

  FIG. 13 shows an outline of the procedure for injecting the seam treatment agent into such a butt portion. In FIG. 13, 1) a step of laying a plurality of flooring materials so that the edges of the flooring material are brought into contact with each other (flooring material laying step), and 2) adhesion over the surfaces of both flooring materials so as to straddle the butted portion. Steps for applying the tape (tape applying step), 3) forming a cut line along the butt portion in the surface of the adhesive tape, and dividing the adhesive tape into a first region and a second region with the cut line interposed therebetween ( (Cut line forming step), 4) a step of injecting a seam treatment agent into the butt portion from the cut line (injection step), 5) a step of drying the injected seam treatment agent (drying step), and 6) a seam treatment agent being dried. The method including the process (peeling process) of peeling an adhesive tape from a flooring after having been shown is shown.

1) Floor material laying step As described above, floor materials 41a to 41d are laid on the surface of the base as shown in FIG. This process corresponds to FIG.

  When laying the flooring materials 41a to 41d, the first flooring material 41a is fixed on the ground using an adhesive or the like, and the edge of the second flooring material 41b is attached to the end face of the edge of the first flooring material 41a. The second flooring 41b is firmly fixed on the ground. Thereafter, the same process is repeated to construct a floor structure in which a plurality of floor materials are laid. In the constructed floor structure (existing floor), a butt portion 42 is formed between the edges of the first floor material 41a and the second floor material 41b. The joint portion 42 of the existing floor is subjected to a seam process according to the following steps.

2) Tape application process In the tape application process, adhesive tape 43 as a masking tape is applied to the existing floor. More specifically, as shown in FIG. 13 (b), the adhesive tape 43 is applied across the surfaces of both floor materials so as to straddle the butted portions 42.

  The pressure-sensitive adhesive tape 43 used in this case is not particularly limited, but in general, a tape made of a laminate including a belt-like base material and a pressure-sensitive adhesive layer provided on the back surface of the base material may be used. preferable.

  As the base material in the adhesive tape 43, a solvent-resistant base material that is not eroded by the seam treatment agent is used. The substrate may be transparent, translucent or opaque. Examples of such a substrate include a laminated sheet in which a cloth sheet and a polyolefin sheet such as polyethylene and polypropylene are laminated; a polyolefin sheet such as polyethylene and polypropylene. The base material is preferably one that can be extended at least in the width direction. The pressure-sensitive adhesive tape 43 having extensibility in the width direction extends in the width direction by applying a force in the plane thereof. In particular, it is preferable to use an adhesive tape having extensibility in the width direction and the longitudinal direction.

  Examples of the pressure-sensitive adhesive include pressure-sensitive pressure-sensitive adhesives that exhibit adhesiveness at room temperature and adhere to an adherend when pressed. Examples of the material for the pressure-sensitive adhesive include rubber-based and acrylic-based materials. The pressure-sensitive adhesive layer can be peeled off from the adherend without allowing the pressure-sensitive adhesive to remain on the adherend, and can be reapplied. Moreover, it is preferable to use a solvent-resistant adhesive.

  It does not restrict | limit especially as the adhesive tape 43, A well-known or commercially available thing is employable. As a commercially available product, for example, “Scotch Sealing Masking Tape” manufactured by 3M Japan Co., Ltd., “Slion Tape” manufactured by Hitachi Maxell Co., Ltd. Sliontec Division, etc. can be suitably used.

  As described above, the existing floor has the butt portion 42 between the butt end surfaces of the first floor material 41a and the second floor material 41b. For example, as shown in FIG. 12, the surface of the first flooring 41 a and the second surface of the first flooring 41 a are arranged so that the longitudinal direction of the abutting portion 42 and the strip-shaped adhesive tape 43 is substantially parallel and the upper opening of the strip-shaped adhesive tape 43 is closed. Affixing over the surface of the flooring 41b. Thereby, one strip-shaped adhesive tape will be in the state stuck on the surface of both floor materials across the butting | matching part 42. FIG.

3) Cut line forming step As shown in FIG. 13 (c), a cut line 44 is formed along the abutting portion 42 in the surface of the region on the abutting portion 42 of the adhesive tape 43, and the cut line 44 is sandwiched between them. The adhesive tape 43 is divided into two areas. The cut line can be formed by using, for example, a cutter such as a roll cutter or a cutter. Note that a jig (not shown) having a sharp tip may be used instead of the blades.

4) Injection step As shown in FIG. 13 (d), the tip of the needle-like body 11 of the nozzle member 10 of the present invention is pushed into the butt portion 42 from the cut line 44, and the seam treatment agent is butted as shown in FIG. 13 (e). 42 is injected. The seam treating agent 46 that has entered the butt portion 42 gently swells or dissolves the vinyl chloride resin constituting the flooring materials 41a to 41b, and finally a strong bond is realized.

5) Drying step After injecting the seam treating agent 46, the seam treating agent 46 is dried until the organic solvent contained in the seam treating agent is volatilized. As a result, the seam treating agent is dried and cured, and the seam portion 47 is formed. Drying may be either natural drying or forced drying. In the case of forced drying, for example, it may be dried by blowing cold air or warm air with a blower such as a blower or a dryer, or may be dried while being heated. In the case of natural drying, the drying time is, for example, about 5 to 20 minutes.

  In the process of drying the seam treatment agent 46, the vinyl chloride resin constituting the floor materials 1a to 1b which has been swollen or dissolved is cured, or the vinyl chloride resin and the seam treatment agent 46 constituting the floor materials 1a to 1b are cured. The resin component contained is cured, and the edge of the first flooring 1a and the edge of the second flooring 1b are connected together via a joint part 47 made of a cured product of a seam treatment agent, so that the butted parts are connected to each other. Be joined.

6) Adhesive Tape Peeling Step As shown in FIG. 13 (f), after the joint portion 7 is formed by drying and curing the seam treatment material, the adhesive tape 43 (both of the adhesive tapes divided into two) is the first. By removing from the floor material 41a and the second floor material 41b while being peeled off, a floor structure in which the butt portion 42 is joined via the joint portion 47 made of a cured body by the joint treatment agent is obtained.

  When the butt portion 42 is joined, the butt end surface of the first floor material 41a and the butt end surface of the second floor material 41b substantially disappear. For this reason, the obtained floor structure will be in the state by which each flooring was joined integrally, and can exhibit the outstanding water-sealing property etc.

Second Embodiment Another embodiment of injecting a seam treatment agent is shown in FIG. In FIG. 14, 1) a step of laying a plurality of floor materials so that the edges of the floor material face each other (floor material laying step), 2) a step of injecting a seam treatment agent into the butted portion (injection step), 3 ) Before the injected seam treatment agent is cured, a step of attaching an adhesive tape across the butt portion so as to contact the seam treatment agent and the protective layer in the butt portion (tape attaching step), 4 The method includes a step of drying the injected seam treating agent (drying step) and 5) a step of peeling the adhesive tape from the flooring after the seam treating agent is dried (adhesive tape peeling step).

  According to the method according to the second embodiment, even if a surplus of the seam treatment agent overflows from the abutting portion in the injection step, the surplus can be easily removed with the adhesive tape after the seam treatment agent is dried. For this reason, a seam process can be implemented comparatively easily. Moreover, after an injection | pouring process, before a seam processing agent completely dry-hardens, it can prevent effectively that an adhesive tape becomes a protective layer and dust, sand, etc. adhere to an injection | pouring part. For this reason, there is almost no problem even if the seam treatment agent is stepped on by, for example, a person before the seam treatment agent is completely dried and cured, and this can contribute to, for example, shortening the construction period and improving efficiency.

  The floor material laying step in the second embodiment can be performed in the same manner as the floor material laying step in the first embodiment as shown in FIG. As shown in FIG. 14B, the implantation step in the second embodiment can be performed in the same manner as the implantation step in the first embodiment, except that masking is not performed. As shown in FIGS. 14C to 14D, the tape application process in the second embodiment is performed in the first embodiment, except that the injected seam treatment agent is cured. It can carry out similarly to the tape sticking process in. The drying process in the second embodiment is performed in the same manner as the drying process in the first embodiment, except that the drying process is performed with the adhesive tape attached, as shown in FIG. 14 (d). Can do. The adhesive tape peeling process in 2nd Embodiment can be implemented like the adhesive tape peeling process in 1st Embodiment, as shown in FIG.14 (e). However, in the adhesive tape peeling process in this embodiment, there exists an advantage that the part which overflowed to the sheet | seat for interior (floor material) among the injected seam processing agents can be removed.

  In particular, in the tape application process of the second embodiment, before the injected seam treatment agent is cured, the adhesive is straddled across the butt portion so as to contact the seam treatment agent and the protective layer surface in the butt portion. Affix the tape. For example, as shown in FIG. 14 (d), an adhesive tape may be attached in a state where it is in contact with the uncured liquid seam treatment agent and the surface of the protective layer.

  Further, in the second embodiment, it is desirable to use an adhesive tape based on a porous fibrous material such as a paper sheet, for example, from the viewpoint that the drying and curing of the seam treatment agent can be further promoted. As the paper sheet, as in the case of the first embodiment, a paper sheet such as cellulose fiber can be suitably employed. A paper sheet is preferable because it has high air permeability, so that the seam treating agent can be dried quickly. However, even a resin sheet having high air permeability can be expected to have the same effect as a paper sheet.

  The features of the present invention will be described more specifically with reference to examples. However, the scope of the present invention is not limited to the examples.

Example 1
The nozzle member 10 for seam processing shown in FIG. 7 was produced. As shown in the sectional view of FIG. 7A, the needle portion 1, the nozzle body portion 2, and the nozzle tip portion 3 are configured. The needle 1 is made of stainless steel, and the nozzle body 2 and the nozzle tip 3 are both made of brass.

  As shown in FIG. 8A, the needle part 1 includes a needle-like body 11 and a support part 12. The length of the needle-like body 11 was about 15 mm. By tapering a part of the front end side of the support portion 12, a tapered portion 13 having a cross-sectional area gradually decreasing toward the front end of the needle-like body 11 is formed. Similarly, a taper-like portion 14 whose cross-sectional area gradually decreases toward the end of the needle-like body 11 is formed by chamfering a part of the end side of the support portion 12. Moreover, as shown in FIG.8 (b), the cross-sectional shape of the support part 12 is processed into the plate-shaped body of thickness about 2 mm.

  As shown in the sectional view of FIG. 9A, the nozzle body 2 is formed with a flow path A that penetrates in the longitudinal direction. A region A1 having an inner diameter larger than the longest diameter (about 4 mm) of the support portion 12 is formed at the tip portion. The flow path A on the end side of the area A1 is a flow path having an inner diameter smaller than the inner diameter of the area A1, and the stepped portion is a stopper portion A2. A threaded portion A3 is formed on the outer peripheral surface of the region A1.

  The nozzle tip 3 has an appearance as shown in FIG. Further, as shown in the cross-sectional view of FIG. 10A, a flow path B that penetrates in the longitudinal direction is formed. A part of the end side of the flow path B is a region B1 having an inner diameter larger than the outer diameter of the tip of the nozzle body 2. The inner diameter is smaller on the tip side than the region B1, and the stopper portion B2 is formed by the step. As shown in FIG. 10A, the flow path B on the tip side of the region B1 is formed with a flow path B ′ having a smaller inner diameter. Can be formed. Further, a screw part B3 is formed on the outer periphery of the region B1, and is used for screwing with the screw part A3.

  When assembling these parts, the seam processing nozzle member 10 was completed according to the procedure shown in FIG. In this case, it could be completed by easily connecting with fingers. In the seam processing nozzle member 10 assembled in this way, for example, as in FIG. 21A, the central axis of the needle-like body 11 is positioned substantially at the center of the circular opening 31 of the nozzle tip 3. It was confirmed that it was fixed. Further, when the nozzle member 10 was disassembled, it could be easily divided into components by fingers.

  The nozzle member 10 is a member suitable for a seam treatment agent having a particularly high viscosity because the discharge portion can be controlled to be relatively large because the cross-sectional shape of the support portion 12 is plate-like.

Example 2
A seam treatment nozzle member 10 was produced in the same manner as in Example 1 except that the needle portion 1 as shown in FIG. 19 was used.

  As shown in FIG. 19A, the needle portion 1 includes a needle-like body 11 and a support portion 12. The length of the needle-like body 11 was about 15 mm. By tapering a part of the front end side of the support portion 12, a tapered portion 13 having a cross-sectional area gradually decreasing toward the front end of the needle-like body 11 is formed. Similarly, a part on the end side of the support portion 12 is chamfered to form a tapered portion 14 whose cross-sectional area gradually decreases toward the end of the needle-like body. Further, as shown in FIG. 19 (b), the cross-sectional shape of the support portion 12 is processed into a substantially equilateral triangle shape whose apexes are chamfered in an arc shape.

  When assembling these parts, the seam processing nozzle member 10 was completed according to the procedure shown in FIG. It could be completed easily by connecting with fingers. In the seam processing nozzle member 10 assembled in this way, for example, as in FIG. 21A, the central axis of the needle-like body 11 is positioned substantially at the center of the circular opening 31 of the nozzle tip 3. It was confirmed that it was fixed. Further, when disassembling the nozzle member 10, it was possible to easily divide the nozzle member 10 into the respective components.

  Further, since the nozzle member 10 has a cross-sectional shape of the support portion 12 different from that of the first embodiment and has a larger cross-sectional area, it is possible to effectively control the discharge amount of the seam treatment agent having a low viscosity. Become.

Claims (4)

A nozzle member for injecting a seam treatment agent into the abutting portion between interior sheets,
(1) The nozzle member has a needle part, a nozzle body part, and a nozzle tip part, which are connected to each other in a detachable state,
(2) The needle portion is disposed at the tip of the nozzle member, and has a needle-like body and a support portion for fixing the needle-like body,
(3) The nozzle body portion has (3a) a flow path (A) penetrating in the longitudinal direction, and (3b) a part or all of the support portion is inserted into the flow path (A) . by having a region (A1) capable of fixing the support part at least in the direction perpendicular to the direction, it has (3c) connection for connecting the nozzle tip (A3), in (3d) region (A1) The support is fitted,
(4) The nozzle tip (4a) has a flow path (B) penetrating in the longitudinal direction, and (4b) a connecting part (B3) for connecting with the connecting part (A3) of the nozzle body part. Have
(5) The needle-like body passes through the flow path (B) at the nozzle tip and protrudes from the opening on the tip side of the nozzle tip, and the opening and the needle-like body have a gap in the cross-sectional direction. However, the flow path (A) and the flow path (B) are connected by the connection portion (A3) and the connection portion (B3) so as to form one flow path ,
(6) The cross-sectional shape of the support portion is formed in a shape such that a seam treatment agent flows from the flow path (A) to the flow path (B).
The nozzle member for seam processing characterized by the above-mentioned. The nozzle member for seam processing according to claim 1, wherein a control mechanism (A2) for controlling movement in the longitudinal direction in the inserted support portion is provided in the flow path (A) . 1) The connecting portion (A3) is a first screw portion formed on the outer peripheral surface of the tip portion of the nozzle body portion, and 2) the connecting portion (B3) is the inner periphery on the end side of the flow path (B). 2. The joint processing nozzle according to claim 1, wherein the nozzle is a second threaded portion formed on the surface, and 3) the first threaded portion and the second threaded portion are respectively connected to each other as a female screw and a male screw by screwing. Element. It is a processing tool containing the container for accommodating the nozzle member for a seam treatment in any one of Claims 1-3, and a seam processing agent, Comprising: The opening part in the flow path (A) of the nozzle body part of the said nozzle member is provided. A seam treatment tool connected directly or indirectly to the opening of the container.