JP6630013B1 - Application nozzle with inner stopper - Google Patents

Abstract

Provided is an application nozzle with a spigot provided with a spout for preventing hardening at the time of storage of a content which hardens when exposed to outside air such as an adhesive or a silicone caulking material. The container has a mounting portion attached to a discharge port of a container, an idling cylinder portion provided with a male thread portion at a lower portion of the cylinder, an annular stopper portion, and a band-shaped annular convex portion at a lower portion. An inner plug formed by connecting an inner plug sliding cylindrical portion 14, a truncated cone portion 12 having a window hole 13 communicating with a discharge port in a body portion, a cylindrical portion 11, and a conical inner plug 10. The part 1 is provided with a female screw cylindrical part 20 having a female screw 21 screwed with the male screw part 18 at the lower part of the elastically deformable cylindrical body, and a middle plug sliding cylindrical part 14 and a cylindrical part 11 in the middle part. A nozzle having a large-diameter sliding cylinder 22 and a small-diameter sliding cylinder 23 that slides in a liquid-tight or air-tight manner, and a conical nozzle 26 that fits into the inner plug, is moved forward and backward by a sliding opening and closing plug. This is a coating nozzle with an inner plug formed by being fitted as much as possible. [Selection diagram] Fig. 1

Description

The present invention relates to prevention of curing of the contents of a synthetic resin application nozzle attached to a container outlet.

Patent Literature 1 discloses a coating nozzle with an inner plug formed of a synthetic resin that does not adhere to a silicon caulking material and is easily cut with a knife, and has a cylindrical body having a male screw attached to a container discharge port. A cylindrical body having an annular projection on the outer circumference, a cylindrical body having a passage hole (hereinafter referred to as a window hole) on the outer circumference communicating with the discharge port, and a conical part having a conical inner plug. A cylindrical body having a female screw at the lower part, a cylindrical body having a sliding portion in close contact with the annular protrusion on the inner periphery, and a similar body closely contacting the fixed inner plug member. A movable nozzle member having a conical coating nozzle having a conical surface having an inner surface and a conical outer shape also having a conical shape is coaxially erected on the fixed inner plug member so as to be able to slide forward and backward in a liquid-tight manner. In addition to preventing hardening of the contents in the nozzle at the time of closing, the cutting cap is cut into the inner stopper. In addition to the provision of the annular groove of the means, the conical coating nozzle has a cutting mark annular projection on the outer surface, and is formed with a thickness of 0 to 2 mm to 5 mm. Are known.

Further, as a conventional technique described in Patent Document 2, a cap attached to a container to close an opening of the container is provided. The cap includes a cap body engaged with the container, and a cap engaged with the container and an opening of the container. A lid is connected to the cap body so that the cap can be opened and closed. When the cap is mounted on the container, the cap is rotated to screw the first and second main body projecting portions of the cap body into the container screw portion. After that, the cap is further rotated to release the screwing of the first and second main body protruding portions with the container screw portion and idle, and the cap screw portion is further rotated so that the lid screw portion becomes the container screw portion. When the screwing is completed, the cap is located at the closed position, and when the cap is mounted on the container, the screwing on the container screw portion is released and the container screw portion is idled. Construction is known which has a guide portion of the cap is brought into sliding contact with the main body threaded portion for guiding to the closed position.

Further, as a conventional technique, there is known a method in which a ridge is provided in a thread groove of a thread so as to cross the thread groove to prevent the screw thread from advancing. (Non-patent literature)

Patent 4301459 Patent 6295084

However, in the technique described in Patent Document 1, at the time of plugging, the conical nozzle is slid backward and backward in a liquid-tight manner with respect to the inner plug portion, and is left in the gap between the similar conical inner plug and the conical nozzle. The contents are discharged by making the inner peripheral surface of the conical nozzle and the outer peripheral surface of the conical inner plug adhere to each other over the entire peripheral surface to prevent moisture from penetrating inside the nozzle and prevent the contents from hardening. Although it is configured, there is a possibility that the hardened content and dust may be mixed in with the content left in the previous use, and there is also distortion during molding of the synthetic resin material. It is difficult to completely eliminate and make it airtight, and moisture penetrates deep inside the window hole to transmit the thinly-remaining contents between the inner plug and the nozzle, and the silicon caulking material that cures due to moisture If it is early, hardening takes about 5 days. Penetrates into innermost section, at the time of loosening the tightening against the inner plug even more as early curing it penetrates the window hole innermost part. Even if it is troublesome at the time of hardening due to these causes, there is a fatal problem that it is impossible to pour out unless the inner plug portion and the nozzle portion are separated and the hardened material inside the inner portion is removed. In addition, there is a problem that the stopper position is not clear at the time of advancement of the nozzle portion when the nozzle portion is advanced, and the screw is merely hardened. .

Next, the invention of Patent Document 2 guides the cap to a closed position from a deformed helical thread groove by switching the screwing position by rotating the cap to release the screw and causing the cap to idle, and The two protruding portions shown in Patent Document 2 correspond to the female screw of the present invention, but idling at the time of opening of the present invention eliminates the lifting force of the nozzle portion and prevents the nozzle portion from coming out together with the annular stopper. In addition, the locking guide piece of the present invention is guided from opening to closing by simply rotating the nozzle portion in a reverse direction to the rotation and locking of the nozzle portion with a right-angled triangular guide piece. There is a coating nozzle with an inner plug which can prevent the hardening of the contents and can easily remove and assemble the nozzle portion and the inner plug portion by disassembly at the time of hardening. Departure Although the description seems to be applicable in description, it is different in content, and it has been difficult to adopt it in the present invention.

Also, even if a bank-shaped obstacle to prevent slipping out is provided in the thread groove of the conventional male screw part in a crossing state, the bank-shaped obstacle is required to set the nozzle part to the usable state with respect to the inner plug part. It is necessary to assemble by screwing over the object, so that the height of the obstacle can not be made too high, and if the obstacle is worn, the screw opening to which the power enters will be applied At the time of sliding, there is a problem that the nozzle portion easily gets over the obstacle and slips out.

In view of the above-mentioned drawbacks of the prior art, the present invention is intended to prevent the hardening of the inside of the nozzle portion at the time of closing, and also, when the nozzle portion is loosely closed, the content is thinly hardened on the inner peripheral surface of the conical nozzle portion. Also, the prevention of the transmission of hardening to the inner part of the window hole, and the method disclosed in Patent Document 1 in which the nozzle part easily comes out when the nozzle part is opened and rotated, and the method disclosed in Non-Patent Document A durable and simple method of preventing the nozzle from slipping out, regardless of the way to prevent the bank from slipping out, and easy to disassemble and assemble with the removal of the hardened material even if hardening has progressed. It is an object of the present invention to provide a coating nozzle with a good inner plug.

Regarding the upper and lower notations of the present invention, the direction of the container is defined as lower or lower, the direction of the spout at the tip of the nozzle is defined as upper or upper, and the mounting part side connected to the container discharge port is referred to as the base end, The exit direction is referred to as the tip.

Further, in the present invention, the description is made on the assumption that the discharge port at the tip of the nozzle portion is cut horizontally as shown in the drawing. However, when the tip of the nozzle portion is cut obliquely, the tip of the inner plug at the time of closing is set to a length exceeding the tip of the nozzle portion.
The rotation in the closing direction is described as clockwise, and the rotation in the opening direction is described as counterclockwise.
The order of sealing the respective annular seal portions of the present invention is assumed to be a large-diameter seal portion in advance, and the content is assumed to be a viscous content that is hardened by the outside air of a silicon caulking material or an adhesive. Also, the forward / backward sliding of the nozzle portion is assumed to be screwing, but the present invention is not limited to this. It is also possible to change the sealing order depending on the contents, and it is applicable even if the contents are liquid. Yes, the hardening can be prevented even by linear sliding operation of the nozzle portion with respect to the inner plug portion.

The present invention is intended to solve the above-described problems, and has a male screw at a lower portion of a cylindrical body attached to a discharge port of a container capable of discharging by pressing, and a window hole communicating with the discharge port at a middle portion. An inner plug portion formed by connecting a conical inner plug to an upper portion, a female screw at a lower portion of an elastically deformable cylindrical body, and a conical shape fitted to the inner plug at an upper portion. Nozzle, the application portion with an inner plug fitted with a nozzle portion comprising a, forward and backward sliding openable and closable plug,
The inner plug portion is formed of a mounting portion mounted coaxially to the container discharge port, a cylindrical male screw portion, and an idling cylinder formed of a cylindrical body in which an inner peripheral surface of a female screw screwed into the male screw is slidable. Portion, an annular stopper portion having an annular convex shape formed at a height at which the female screw portion can be fitted by elastically expanding the diameter, and an inner plug sliding cylinder portion having an outer diameter equal to or less than the diameter of the idling cylinder portion. A frusto-conical portion having a lower end outer diameter that is equal to or less than the outer diameter of the inner stopper sliding cylinder portion and having a window hole communicating with the container discharge port in the body portion and having a diameter reduced toward the distal end portion. , An inner plug sliding cylindrical portion, a cylindrical column having a diameter smaller than the outer diameter, and a conical inner plug, are configured in series,

The nozzle part has a female screw cylinder part with a female screw protruding from the lower part of the inner peripheral surface of the cylinder whose outer diameter and inner diameter are approximately the same diameter, and a liquid on the outer peripheral surface of the inner stopper sliding cylinder part. A large-diameter sliding cylinder that can slide tightly or air-tightly, a small-diameter sliding cylinder that can slide liquid-tight or air-tight on a cylindrical portion through a connecting cylinder, and a conical nozzle. , Are formed coaxially and continuously.

According to this configuration, at the time of stopper sliding in which the nozzle portion descends with respect to the inner plug portion, the large-diameter sliding cylinder portion and the small-diameter sliding cylinder portion are formed by the inner stopper sliding cylinder portion and the outer edge of the upper end of the cylindrical portion. The contents adhered to the inner peripheral surface of each of the above were scraped off, and a liquid-tight or air-tight annular seal portion was formed on each.

Next, at the time of closure, the nozzle portion is further closed and rotated in order to further increase the sealing degree, so that the annular convex portions provided on the inner peripheral surfaces of the large-diameter sliding cylinder portion and the small-diameter sliding cylinder portion, respectively. The part is interposed between the inner stopper sliding cylinder part and the cylindrical part, and an annular large-diameter seal part and a small-diameter seal part having a higher degree of sealing are formed.

In addition, in the fitting of the nozzle tip portion of the conical nozzle and the conical inner plug at the time of closure, the conical apex angle of the nozzle portion is formed to be wider than the conical apex angle of the inner plug portion, When the outer peripheral surface of the conical inner plug and the inner peripheral surface of the conical nozzle are in contact with each other, an annular seal portion is formed.

Next, the annular stopper portion is configured such that the female screw portion of the nozzle portion rises by the opening direction screwing and unscrews, and enters the idling cylinder portion, and the leading end of the threaded portion of the female screw portion which is in the idling rotation state. The upper side is disposed at a position where it contacts, and one side of the locking guide piece having a right-angled triangular shape in plan view is closely formed and formed under the annular stopper, and the other side is formed in parallel with the axial direction. The screw head is positioned as the opening rotation stop wall of the screw head, and the oblique side is lowered as the upper part of the female screw thread comes into contact with the lower side of the oblique side when rotating in the nozzle closing direction. In addition to guiding the rotation, the rear end of the female screw thread is also formed as a guide side for starting screwing with the male screw part. The guide function and the outer periphery of the upper portion of the idling cylinder are integrally formed around the idler cylinder.

At the time of closure according to the present invention, a liquid-tight or air-tight small-diameter and large-diameter annular seal portion is formed at two places, an upper part and a lower part, of a window hole as a first stage of closure, and a conical shape is formed as a second stage of closure. With the nozzle and the conical inner plug, an annular seal portion is formed at the tip of the conical nozzle, and even when the nozzle is loosely tightened when the plug is closed, the window hole is already formed in the upper and lower annular It is sealed by the seal part, and hardening occurs only thinly on the inner peripheral surface of the conical nozzle part and does not proceed deep inside the window hole part, so it can be continuously poured out and does not hinder the next use Configuration.

Next, in the sealing method of the conical nozzle portion, by forming an annular seal at the tip of the nozzle, compared with the method in which the nozzle and the inner plug are tightly adhered to the entire peripheral surface of Patent Document 1, Even if there is a distortion, the influence is reduced, and with the decrease in the area of the contact portion, the contact pressure per unit area is increased and the airtightness is also increased.

In addition, by strengthening the pressure of the nozzle against the inner plug, the liquid-tightness or air-tightness is improved when the nozzle is slid and when the nozzle is closed, but the rotational sliding operation is performed during the sliding. Difficulty of becoming heavy, and by reducing the contact pressure, the sliding and rotating operation becomes lighter, but the sealing degree during sliding is reduced. In order to prevent hardening at the time, when the nozzle portion is closed, the inner peripheral surfaces of the large-diameter sliding cylinder portion and the small-diameter sliding cylinder portion abutting on the upper outer periphery of the inner stopper sliding cylinder portion and the upper outer periphery of the cylindrical portion. The configuration in which the annular convex portion is interposed at the position improves the sealing performance.

Also, when closing the nozzle portion, the thick portion at the lower part of the large-diameter sliding cylinder portion rides on a band-shaped annular convex portion provided around the lower portion of the inner-plug sliding cylinder portion and seals it. The sealability is further improved by forming two seal portions.

In addition, when the nozzle is opened, the female screw of the nozzle is unscrewed and idles, and the nozzle which has lost the lifting force is stopped from rising. Since the female screw portion which has lost the force only comes into contact with the annular stopper portion, the rise of the nozzle portion is prevented, so that the decrease in the locking ability due to the wear of the annular stopper portion is reduced. It can withstand long-term use, and it can be rotated by pulling the nozzle part upwards by hand. The contents can be easily removed at the time.

A vertical cross-sectional view of the nozzle with the nozzle fitted to the inner plug attached to the container and closed, the right half of the inner plug is a vertical cross-sectional view, and the left half is the left half of the inner plug. It is a front view. A vertical cross-sectional view of the nozzle portion with the nozzle portion fitted to the inner plug portion and the plug being opened and ejected, the right half of the inner plug portion is a vertical cross-sectional view, and the left half is a front view of the left half of the inner plug portion. is there. Side vertical cross-sectional view in a state where the nozzle is fitted to the inner plug and the plug is closed (the arrow indicates the direction of the flow path for discharging the contents). Side vertical sectional view in a state where the nozzle portion is fitted to the inner plug portion and the plug is opened (the diverting wall 11a divides the contents discharged from the container to the left and right as indicated by the arrow and smoothly opens the window. It is provided so as to pass through the hole (the arrow indicates the flow direction of the contents) It is an expanded sectional view of the window hole part at the time of closure, and has shown the annular seal state of the window hole upper and lower part by the large diameter annular convex part 24 and the small diameter annular part 25. FIG. 10 is an enlarged cross-sectional view of the window hole portion illustrating a passing state (arrow) in which the contents abut against the branch wall 11a due to pressing on the container when the container is opened, diverge right and left, and enter the gap from the window hole. It is a perspective explanatory view showing the state of the nozzle part female screw in a closed state. It is a perspective explanatory view showing a state of a nozzle part female screw at the time of closure from an unopened state. (The arrow indicates the direction of rotation) It is a perspective explanatory view showing the rotation state of the nozzle part female screw at the time of starting from an open state to plugging. (The arrow indicates the direction of rotation)

Next, an embodiment of an application nozzle with an inner plug according to the present invention will be described with reference to the drawings.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1, 3, 5, and 7 are views when the nozzle portion 2 is attached to the inner plug portion 1 at the time of closing before the start of use. At the time of assembling to the closed state, when the nozzle portion is fitted with the inner plug portion attached to the discharge port 41, the female screw portion 21 is elastically expanded in diameter and passes over the annular stopper portion 15 to pass through the male member. While being screwed into the screw portion 18, the conical inner plug 10 and the conical nozzle 26 are also fitted, the screwing is stopped and the assembly is completed, and the application nozzle with the inner plug when closing is formed.

Next, an embodiment from a plugged state to a plugged out state and a plugged state will be described with reference to the drawings.
First, from the closed state shown in FIG. 7, the female screw portion 21 rises by the counterclockwise screwing of the nozzle portion with respect to the inner stopper portion, and rises to the idling cylinder portion 16 region almost at the same time when the screwing is released. The female thread which enters the area in the sliding contact rotation state where the force has been lost, and is in the idling rotation state between the annular stopper portion 15 and the male screw plane cut portion 17 in which the upper end of the male screw is cut in a plane. As shown in FIG. 9, the leading end collides with a locking guide piece 15a formed at a height which allows the head to climb over, but unless the rotary operation is performed so as to pull out the nozzle portion from the inner plug portion, an annular stopper is formed. The nozzle portion is prevented from ascending by the portion 15 and the rotation is also locked or moved over by the locking guide piece 15a, but the nozzle portion which has lost the lifting force unless the pulling operation is performed as described above. Does not come off, at this time the user senses the lock Aware that the nozzle unit has reached the cap removal pourable state, the nozzle stops the nozzle unit rotates becomes unplugging coated state. (The direction of the arrow indicates the start of opening)

  Next, the contents filled in the container by pressing the container pass through the inner plug cylindrical body and are discharged from the window 13 (FIGS. 4 and 6) and pass through the gap 10a between the nozzle portion and the inner plug portion. It is discharged from the nozzle tip and used for coating.

Next, an embodiment from the open application state to the closed storage state will be described with reference to FIGS.
After the coating operation is completed, the nozzle portion is turned clockwise to close the stopper. As shown in FIG. 8, first, the upper end of the female screw 21 is guided in contact with the oblique side of the locking guide piece 15a. The male screw 18 is screwed to the tip of the thread, and the nozzle starts to descend by screwing.

At the same time, the large-diameter sliding cylinder portion 22 and the small-diameter sliding cylinder portion 23 constituting the nozzle portion also slide down, and the large-diameter sliding cylinder portion 14 and the upper outer edge of the cylindrical portion 11 form the large-diameter sliding cylinder. The large-diameter sliding cylinder portion 22 and the inner-plug sliding cylinder which are liquid-tight or air-tight are formed by removing contents attached to the inner peripheral surface of the moving cylinder portion 22 and the inner peripheral surface of the small-diameter sliding cylinder portion 23, respectively. The large-diameter annular portion is provided between the large-diameter sliding cylinder portion 22 and the small-diameter sliding cylinder portion so as to be sandwiched between the portion 14 and the small-diameter sliding cylinder portion 23 and the cylindrical portion 11 (see FIG. 5). The convex portion 24 and the small-diameter annular convex portion 25 form an annular seal shown in FIG. 5 in which the content is reduced from being caught in the annular convex portion and the sealing performance of the window hole 13 is further improved.

Next, at the tip of the nozzle portion, an annular seal is formed by the conical inner plug 10 and the conical nozzle 26 as shown in FIG. 3, and a large-diameter sliding cylinder as shown in FIG. The thick part 22a at the lower part of the lower part slides over the belt-shaped annular convex part 14a provided around the lower part of the inner plug sliding cylinder part, and the sealing is further improved by sealing.

INDUSTRIAL APPLICABILITY The present invention is used for construction of small-scale waterproof seals and the like by caulking related to architecture.

1 Inside plug
2 Nozzle part 3 Mounting part 4 Container 10 Conical inner plug 10a Gap
11 Cylinder 11a Branch wall
12 truncated cone
13 windows
14 Inner stopper sliding cylinder
14a belt-shaped annular convex portion 15 annular stopper portion,
15a Locking guide piece
16 Idling cylinder
17 Male thread flat cut part
18 Male thread part 20 Female thread cylinder part 21 Female thread part 22 Large diameter sliding cylinder part 22a Thick part 23 Small diameter sliding cylinder part
23a connecting cylinder 24 large-diameter annular projection 24a large-diameter seal
25 Small diameter annular convex part 25a Small diameter seal part
26 Conical nozzle 27 Outlet
28 Annular seal part 41 Discharge port

Claims (4)

A male screw is provided at the lower part of the cylinder attached to the discharge port of the container capable of discharging by pressing, a window hole communicating with the discharge port is provided on the outer peripheral surface of the central part, and a conical inner plug is connected at the upper part. The inner plug part formed with a female screw at the bottom of the elastically deformable cylinder and a conical nozzle fitted to the inner plug at the top, the nozzle part with a forward and backward sliding openable An application nozzle with an inner plug, which is fitted to
The inner plug portion is coaxially formed with a mounting portion to be mounted to the container discharge port, a cylindrical male screw portion, and an idle cylinder formed by a slidable cylindrical body with a female screw inner peripheral surface screwed into the male screw. And the female screw portion is screwed forward to release the screw engagement, and at the same time, the idle cylinder is positioned such that the upper end of the threaded end of the female thread portion in the slidably rotating state comes into contact with the idle cylinder. An annular stopper formed in the periphery of the annular portion, an inner stopper sliding cylinder having substantially the same diameter as the idling cylinder, and an outer diameter at the lower end of which is equal to or less than the outer diameter of the inner stopper sliding cylinder. A frustoconical truncated cone formed with an outer diameter and communicating with the container discharge port on the outer peripheral surface of the body, and having a diameter reduced in the distal direction, and a cylindrical shape having a diameter smaller than the outer diameter of the inner stopper sliding cylinder. And a conical inner plug are formed continuously.
The nozzle portion has a male screw part outer diameter and an internal screw part with a female screw protrudingly provided at the lower part of the inner peripheral surface of the cylindrical body whose inner diameter is approximately the same diameter. A large-diameter sliding cylinder that can slide in a liquid-tight or air-tight manner, a small-diameter sliding cylinder that can slide in a liquid-tight or air-tight manner on the inner peripheral surface through a connecting cylinder, and a conical nozzle And are formed coaxially and continuously,
At the time of backward closing of the nozzle portion in which the nozzle portion is fitted to the inner stopper portion, a large-diameter sliding cylinder portion and a large-diameter sealing portion formed liquid-tight or airtight by the inner-plug sliding cylinder portion below the window hole portion. A small-diameter seal portion formed by the small-diameter sliding cylinder portion and the cylindrical portion in a liquid-tight or air-tight manner at the upper portion of the window hole portion; A large-diameter seal portion formed in a liquid-tight or air-tight manner by the moving cylinder portion and the inner-plug sliding cylinder portion, and a gap through which the content passes between the inner-plug portion and the nozzle portion in the upper portion of the window hole portion. An application nozzle with an inner plug, which is formed. Further, on the inner peripheral surfaces of the large-diameter sliding cylinder portion and the small-diameter sliding cylinder portion in which the small-diameter sealing portion and the large-diameter sealing portion are formed, an annular convex portion is provided for the purpose of enhancing the sealing property when the plug is closed. The coating nozzle with an inner plug according to claim 1, wherein: One side of a substantially right-angled triangular shape having substantially the same height as the annular stopper portion is provided on the lower side of the outer periphery of the annular stopper portion, and the other side is opposed to the tip of the female screw portion when rotating in the nozzle opening direction. At the position to be stopped, it is formed as a locking wall parallel to the axial direction, and the oblique side descends as the upper side of the female screw tip abuts on the lower side of the oblique side in the nozzle part closing direction rotation, The rear part of the female screw is formed as a guide piece that starts screwing with the male screw part. The nozzle part is lifted and locked, the nozzle part is rotated, and the stopper screwing return guide function from idling is provided. , is stoppered application nozzle in the claims 1 or 2, wherein the formed integrally with the idle cylinder portion. The conical apex angle of the nozzle portion is formed to be wider than the conical apex angle of the inner plug portion, and when fitted and closed, an annular seal portion is formed at the end of the outer peripheral surface of the inner plug. The coating nozzle with an inner plug according to any one of claims 1 to 3.