WO2011027486A1

WO2011027486A1 - Fastening member

Info

Publication number: WO2011027486A1
Application number: PCT/JP2010/002038
Authority: WO
Inventors: 大塚眞
Original assignee: 株式会社猩々精機
Priority date: 2009-09-03
Filing date: 2010-03-23
Publication date: 2011-03-10
Also published as: JP2011051640A; JP4613244B1

Abstract

Provided is a sealed container by which an effect for preventing loosening can be obtained without enlarging a fastening member. In a sealed container (1) wherein a container body (2) and a cap (3) for closing the opening provided on the container body (2) are fastened by threaded connection, a thread ridge (4) provided on the container body (2) side and a thread groove (5) provided on the cap (3) side can be engaged, the thread groove (5) has thread groove wide portions (5a, 5b) where the width in the circumferential direction is locally wider at a position set back from the entrance of the groove, and a projection (14) is provided by which when the container body (2) and the cap (3) are fastened in the direction along the line of the thread ridge (4) and the thread groove (5), the container body (2) and the cap (3) are relatively moved in the circumferential direction and the thread ridge (4) enters into the thread groove wide portions (5a, 5b).

Description

Fastening member

The present invention relates to a fastening member.

Various types of sealed containers that are fastening members for fastening the container body and the cap are known. In addition, the sealed containers that use screws include solids such as liquids and powders, and semi-solids such as creams and gels, and the inside is sealed by screwing the cap onto the container body. Sealed containers are known. In view of this, there has been proposed a loosening prevention structure for preventing such a cap from being loosened for such a container (see Patent Document 1).

The container described in Patent Document 1 is a synthetic resin in which a female screw is formed on the inner surface side of the skirt portion of the cap so as to be screwed with a male screw formed on the outer surface side of the mouth and neck portion of the container body. Has a cap. An annular neck ring is formed below the male screw of the mouth and neck. Corresponding to the neck ring, at least three or more vertical ribs are formed at substantially equal intervals in the circumferential direction of the skirt portion on the inner surface side of the lower end portion of the skirt portion of the cap. Then, the vertical rib of the cap is configured to come into contact with the neck ring of the mouth neck portion from the outside in a state where the cap is sufficiently screwed to the mouth neck portion.

JP 2003-40296 A

In the container described in Patent Document 1, an annular neck ring is formed below the male screw of the mouth-and-neck portion in order to prevent loosening, and a vertical rib is formed on the inner surface side of the lower end portion of the skirt portion of the cap. Forming. Such a structure requires a special cap and mouth / neck region to prevent loosening, which results in a large container.

Therefore, an object of the present invention is to provide a fastening member that can exhibit a loosening prevention effect without enlarging the fastening member.

In order to achieve the above object, a fastening member of the present invention is a fastening member that is fastened by screwing two members together, a thread provided on one member side, and a thread groove provided on the other member side. The thread groove has a wide thread groove portion whose width in the circumferential direction is locally wide at a position where it enters the back side from the entrance, and screw one member and the other member into the screw groove. When tightened in the direction along the linear direction of the ridge and the thread groove, there is provided a direction changing portion that relatively turns one member and the other member in the circumferential direction and causes the thread to enter the wide groove portion.

Here, the direction changing portion is a protruding portion that is provided on a side portion of the thread groove that engages with the screw thread and protrudes in the circumferential direction into the thread groove, and the protruding portion screwes one member and the other member. Part or all of the tightening force in the direction along the linear direction of the thread and the thread groove, the thread and the thread groove wide part relatively approach the circumferential direction, and the thread enters the thread groove wide part. It is preferable to convert to a force to make it in a stale state.

In addition, it is preferable that the one member and the other member can be further rotated relative to each other in the circumferential direction from the state in which the thread has entered the wide groove portion.

In addition, when one member and the other member are tightened in the direction along the linear direction of the thread and the thread groove, a part or all of the first convex portion that becomes the thread is provided in the thread groove. It is preferable to cross over a part of the second convex portion and engage with each other.

Further, it is preferable that one member is a container body, the other member is a cap that closes an opening provided in the container body, and the fastening member is a container including the container body and the cap.

Further, it is preferable that the packing is disposed between the opening end of the opening of the container main body and the bottom surface of the cap, and the packing is crushed in a state where the wide groove portion and the screw thread are engaged by the direction changing portion. .

In addition, at the end of the inner bottom surface of the cap, a rib that protrudes in an annular shape while forming a gap with the inner peripheral surface of the cap is provided, and the wall portion that surrounds the opening is inserted into the gap. Is inclined with respect to the surface orthogonal to the inner bottom surface of the cap so as to press the inner peripheral surface of the opening from the inside to the outside, and the wide groove portion and the thread are engaged by the direction changing portion. It is preferable that the wall portion is inserted into the gap and the container body and the cap are engaged with each other.

In the present invention, it is possible to provide a fastening member that can exhibit a loosening prevention effect without enlarging the fastening member.

In the longitudinal cross-sectional view of the sealed container according to the embodiment of the present invention, the left screw engaging portion is drawn as an end view along the lead angle (30 °), and the right screw engaging portion has a lead angle of 90 for convenience. It is the figure drawn as an end view with °. FIG. 2 is a longitudinal sectional view of a container body constituting the sealed container shown in FIG. 1, in which a left screw engaging portion is drawn as an end view along a lead angle (30 °), and a right screw engaging portion is shown with a lead angle for convenience. It is the figure drawn as an end view made 90 degrees. FIG. 2 is a longitudinal sectional view of a cap constituting the sealed container shown in FIG. 1, in which the left screw engaging portion is drawn as an end view along the lead angle (30 °), and the right screw engaging portion has a lead angle of 90 for convenience. It is the figure drawn as an end view with °. However, the illustration of the second convex portions other than the left and right sides is omitted. It is a perspective view of the container main body shown in FIG. FIG. 4 is a perspective view of the cap shown in FIG. 3 and is a view in which packing is omitted. It is the expanded view of the screw engaging part of the container main body which comprises the sealed container shown in FIG. 1, and five sectional drawings which cut | disconnected the screw thread by five sectional lines. It is the expanded view of the screw engaging part of the cap which comprises the sealed container shown in FIG. 1, and eight sectional drawings which cut | disconnected the 2nd convex part by eight sectional lines. It is a general | schematic perspective view which shows the relationship between the screw thread at the time of engaging the container main body and cap which comprise the sealed container shown in FIG. 1, and a 2nd convex part, When trying to screw-connect a container main body and a cap It is a figure which shows the state of. It is a simplified diagram showing the positional relationship between the first convex portion, the high convex portion, and the projecting portion immediately before the high projecting portion gets over the low convex portion and engages with each other. FIG. 10 is a simplified diagram showing a positional relationship among the first convex portion, the high convex portion, and the protruding portion after the slope of the first convex portion hits the slope of the protruding portion after the state shown in FIG. 9. It is a cross-sectional schematic diagram which shows the state of a screw thread and a low convex part in the state which the high protrusion of the container main body in the sealed container shown in FIG. 1 climbs over the low convex part of a cap, and mutually latches. It is a cross-sectional schematic diagram which shows the state of a screw thread, a low convex part, and a high convex part in the state which the wall surface of the high convex part provided in the cap in the sealed container shown in FIG. 1 presses the wall surface of a screw thread. It is sectional drawing which shows the state of the wall part and cap of a container main body of a sealed container, and is a figure which shows the state before a screw thread reaches an edge part. It is sectional drawing which shows the state of the wall part of a container main body of a sealed container, and a cap, and is a figure which shows the state after a screw thread reaches | attains an edge part. It is an expanded sectional view of the rib shown in FIG. 13 and FIG. 14 and its periphery. It is a figure which shows the modification of the sealed container which concerns on this Embodiment, and is a figure which shows the example which varied the shape of the high convex part provided in the cap. It is a figure which shows the state in the middle of the case where the 2nd operation | movement to the arrow Y shown in FIG. 8 is performed with respect to the sealed container of the modification shown in FIG. It is a figure which shows the state which performed and complete | finished the 2nd operation | movement to the arrow Y shown in FIG. 8 with respect to the sealed container of the modification shown in FIG. 16 is a diagram showing a state where the second operation to the arrow Y shown in FIG. 8 is completed for the sealed container of the modification shown in FIG. 16, and is a cross-sectional view taken on line LL in FIG. A cross-sectional view cut along cutting lines (MM and NN) is shown. It is a figure which shows the further modification of the sealed container which concerns on this Embodiment, and is the figure which made the protrusion part the hemispherical thing. It is a figure which shows the further modification of the sealed container which concerns on this Embodiment, and is the figure which made the protrusion part the long thing. It is a figure which shows the further modified example of the sealed container which concerns on this Embodiment, and is a figure of what mixed the protrusion part and the inclination of an angle, and formed the protrusion part in the inclined surface and the parallel surface.

Hereinafter, a sealed container which is a fastening member according to an embodiment of the present invention will be described with reference to the drawings. Although this sealed container is a sealed container for storing cosmetics, it can also be applied to other sealed containers such as containers for beverages (such as plastic bottles) and food storage containers.

(Structure of sealed container)
FIG. 1 is a longitudinal sectional view of a sealed container 1 according to an embodiment of the present invention. However, in FIG. 1, the left screw engaging portion (the outer periphery of the container body 2 and the inner periphery of the cap 3 in the gap between the container body 2 and the cap 3) is an end view along the lead angle (30 °). The right screw engaging portion is drawn with a lead angle of 90 ° for convenience (the same applies to FIGS. 2 and 3). FIG. 2 is a longitudinal sectional view of the container body 2. FIG. 3 is a longitudinal sectional view of the cap 3. The protrusions such as the thread 4 of each screw engaging portion are illustrated as if they are separate members from the container body 2 and the cap 3 (the cross-hatched interval indicating the cross section is different). Is for easy understanding of the engagement relationship of the screw engaging portion. Actually, the protruding portion from the container body 2 is formed integrally with the container body 2, and the protruding portion from the cap 3 is It is formed integrally with the cap 3. Moreover, the protrusion part of each screw engaging part is represented not as a sectional view but as an end view.

The sealed container 1 is fastened by screwing together a polyethylene resin container body 2 and a polypropylene resin cap 3 that closes an opening provided in the container body 2 and has a higher elasticity than the container body 2. is there. A screw thread 4 constituting a screw engaging portion is provided on the outer periphery of the opening of the container body 2. And the thread groove 5 which comprises a screw engaging part is provided in the inner periphery of the cap 3. As shown in FIG. The screw thread 4 and the screw groove 5 are configured to be engageable.

As shown in FIGS. 1 and 2, the container body 2 extends in the radial direction of the accommodating portion 2a from a cylindrical accommodating portion 2a with a bottom that accommodates an object and a half of the height of the accommodating portion 2a. Further, it has a cylindrical skirt portion 2b that extends downward and covers the outer periphery of the lower half of the housing portion 2a. The outer periphery of the accommodating portion 2a above the skirt portion 2b is a screw engaging portion of the container body 2. The center of the bottom surface of the housing part 2a is a position corresponding to a position where the molten resin is press-fitted when the container body 2 is molded, and a hemispherical bulge 2c formed at the end of molding is formed at that position.

As shown in FIGS. 1 and 3, the bottomed cylindrical cap 3 has a thick portion 3b on the side surface close to the bottom surface 3a and a side surface portion 3c on the opening side of the thick portion 3b. Yes. The inner periphery of the side surface portion 3 c becomes a screw engaging portion of the cap 3. The center of the inner bottom surface 3a of the cap 3 is a position corresponding to a position where the molten resin is press-fitted when the cap 3 is molded, and a circular recess 3d formed at the end of molding is formed at that position.

Further, as shown in FIGS. 1 and 3, a packing 7 is disposed on the entire bottom surface 3a so as to cover the bottom surface 3a. And as shown in FIG. 1, in the state where the thread groove wide portion (details will be described later) and the thread 4 are engaged by the relative rotation in the circumferential direction (details will be described later), that is, in the state where the cap 3 is tightened. The packing 7 at the opposite portion of the opening end of the container body 2 and the bottom surface 3a of the cap 3 is crushed.

Further, as shown in FIGS. 1 to 3, when the cap 3 is tightened into the container body 2 in a direction along the direction of the thread 4 and the thread groove 5, the cap 3 is provided at the screw engaging portion of the container body 2. The high protrusion 11 a of the first convex portion 11 that becomes the thread 4 that has been screwed over the low protrusion 12 b of the second convex portion 12 provided in the screw groove 5 of the screw engaging portion of the cap 3. They are locked together in a state. Here, in the present embodiment, the screw thread 4 includes the same one as the first convex portion 11.

And the 1st convex part 11 used as a part of screw thread 4 is comprised from the high protrusion 11a of the opening front end side of the container main body 2, and the lower protrusion 11b following it. And the 2nd convex part 12 provided in the screw engaging part of the cap 3 is a high high convex part 12a which becomes a projection part provided in the opening side of the cap 3, and the side opposite to the high convex part 12a (cap 3 The low low convex part 12b provided in the bottom face 3a side). Here, the rear surface side facing the low concave portion 12b of the high convex portion 12a (projection portion) has a function of increasing the tightening force between the container body 2 and the cap 3 when the container body 2 and the cap 3 are relatively rotated in the circumferential direction. Have.

Here, as described above, the container body 2 is integrally formed with the screw thread 4 (first convex portion 11). Further, the cap 3 is integrally formed with the second convex portion 12 as described above.

FIG. 4 is a perspective view of the container body 2 shown in FIG. As shown in FIG. 4, the first protrusions 11 having the high protrusions 11 a are not installed on all the screw threads 4, but are arranged every other one in the circumferential direction of the screw engaging part. Yes. And the 3rd convex part 13 used as the thread 4 which does not have the high protrusion 11a is installed between the threads 4 which have the 1st convex part 11, and is 1st in the circumferential direction of a screw engaging part. The convex portions 11 are alternately arranged. This 3rd convex part 13 has comprised the same shape as the 1st convex part 11 except not having the high protrusion 11a. The 3rd convex part 13 is made into the shape where the low protrusion 11b of the 1st convex part 11 has spread to the high protrusion 11a. As a result, as shown in FIG. 1, the high protrusions 11 a are engaged with each other in a state of overcoming the low protrusions 12 b of the second convex part 12. Only the thread 4 that is the convex part 11 is the other thread 4 in the circumferential direction of the screw engaging part.

FIG. 5 is a perspective view of the cap 3 shown in FIG. In FIG. 5, the packing 7 shown in FIGS. 1 and 3 is omitted. The screw grooves 5 of the cap 3 are provided with every other projecting portion 14 serving as a direction changing portion in each screw groove 5. The protruding portion 14 is provided on the side surface of the second convex portion 12 and is installed so as to protrude into the screw groove 5. When the thread 4 is guided by the thread groove 5 and enters the back side, that is, the bottom surface 3a side of the cap 3, the protrusion 14 collides with the tip of the thread 4 and moves the thread 4 in the circumferential direction. It functions as follows. A specific configuration of the thread groove 5 will be described later.

FIG. 6 is a development view of the screw engaging portion of the container body 2 and a cross-sectional view of the screw thread 4. The threads 4 having the first protrusions 11 and the threads 4 having the third protrusions 13 are alternately arranged at equal intervals in the circumferential direction of the outer periphery of the opening of the container body 2. The lead angle α of the thread 4 is 30 °. FIG. 6 also shows an AA cross-sectional view of the first convex portion 11 in the longitudinal direction (line direction). The 1st convex part 11 has the high protrusion 11a and the lower protrusion 11b following it. The upper surface 11a1 of the high protrusion 11a and the upper surface 11b1 of the low protrusion 11b are flat surfaces (in fact, a surface that is slightly curved in the circumferential direction along the outer peripheral surface of the container body 2). The high protrusion 11a and the low protrusion 11b are connected by a slope 11c. The end of the high protrusion 11a opposite to the inclined surface 11c and the outer peripheral surface of the opening of the container body 2 are connected by an inclined surface 11d. The end of the low protrusion 11b opposite to the inclined surface 11c and the outer peripheral surface of the opening of the container body 2 are connected by a wall surface 11e forming an angle of about 90 ° from the upper surface of the low protrusion 11b. FIG. 6 also shows an A′-A ′ cross-sectional view of the third convex portion 13 in the longitudinal direction (line direction). The code | symbol attached | subjected to each site | part of the 1st convex part 11 is attached | subjected similarly to the site | part corresponded to the site | part of the 3rd convex part 13. FIG. The third protrusion 13 does not have the high protrusion 11a of the first protrusion 11, that is, the upper surface 11a1 and the slope 11c, and the upper surface of the third protrusion 13 is only the upper surface 11b1 of the lower protrusion 11b. You can see that

FIG. 6 also shows a BB cross-sectional view in the short direction of the portion of the low protrusion 11b of the first protrusion 11. The upper surface 11b1 of the low protrusion 11b and the outer peripheral surface of the container body 2 are connected by

inclined surfaces

11f and 11f. FIG. 6 shows a B′-B ′ cross-sectional view of a portion corresponding to the high protrusion 11 a of the first protrusion 11 in the short direction of the third protrusion 13. The B'-B 'sectional view is shown in the same shape as the BB sectional view. Therefore, the reference numerals assigned to the respective portions of the first convex portion 11 are similarly attached to the portions corresponding to the portions of the third convex portion 13. From the B′-B ′ sectional view, it can be seen that the third convex portion 13 does not have the high convex portion 11a, and the upper surface of the third convex portion 13 is only the upper surface 11b1 of the low convex portion 11b. .

FIG. 6 also shows a CC cross-sectional view in the short direction of the portion of the high protrusion 11a of the first protrusion 11. The upper surface 11a1 of the high protrusion 11a and the outer peripheral surface of the container body 2 are connected by

slopes

11g and 11g. The cross section of the first convex portion 11 shown in the BB cross sectional view and the CC cross sectional view has an isosceles trapezoidal shape. 6 is shown as an end face state of the right screw engaging portion in FIGS. 1 and 2, and shows an end face state of the first convex portion 11. FIG.

FIG. 7 is a development view of the screw engaging portion of the cap 3 and a sectional view of the second convex portion 12. The second convex portions 12 are arranged at equal intervals in the circumferential direction of the inner periphery of the cap 3. The interval is the same as the interval at which the threads 4 shown in FIG. 6 are arranged in the circumferential direction of the outer periphery of the opening of the container body 2. Further, the lead angle β of the second convex portion 12 is 30 °.

Further, as shown in the DD cross-sectional view (cross-sectional view in the line direction) of FIG. 7, the second convex portion 12 includes a high high convex portion 12a provided on the opening side of the cap 3, and a high convex portion. It has a low low convex portion 12b provided on the opposite side (the bottom surface 3a side of the cap 3) from 12a. The inner peripheral surface portion of the cap 3 between the low convex portion 12 b and the bottom surface 3 a of the cap 3 and between the high convex portion 12 a and the low convex portion 12 b is a wide thread groove portion constituting the thread groove 5. The former is the first wide groove 5a and the latter is the wide wide groove 5b. The second wide thread groove portion 5b is connected to an elongated narrow thread groove 5c that guides the thread 4 in the linear direction. The wide groove portion is a portion that functions when the thread 4 is guided in the circumferential direction.

At the center of the high convex portion 12a, a trapezoidal concave portion 12e having an isosceles cross section composed of a slope 12c and a bottom surface 12d is formed. The other upper surface 12a1 of the high convex portion 12a is a flat surface (actually a surface slightly curved in the circumferential direction along the inner peripheral surface of the cap 3). Further, the upper surface of the opening side end portion of the cap 3 of the high convex portion 12a and the inner peripheral surface of the cap 3 are connected by an inclined surface 12f. Further, the end upper surface 12a1 on the low convex portion 12b side of the high convex portion 12a and the inner peripheral surface of the cap 3 are connected by a wall surface 12g forming an angle of about 90 ° from the upper surface 12a1 of the high convex portion 12a. The upper surface 12b1 of the low convex portion 12b is a flat surface (actually, a surface slightly curved in the circumferential direction along the inner peripheral surface of the cap 3), and the upper surface 12b1, the high convex portion 12a side, and the bottom surface of the cap 3 The inner peripheral surface of the cap 3 on the 3a side is connected by

slopes

12h and 12h, respectively. The low convex portion 12b has an isosceles trapezoidal cross-sectional shape along the linear direction.

7 is a cross-sectional view of the high convex portion 12a in the circumferential direction. The recess 12e has an isosceles trapezoidal cross section composed of an inclined surface 12c and a bottom surface 12d, similar to the DD cross section. The upper surface 12a1 of the high convex portion 12a and the inner peripheral surface of the cap 3 on both sides thereof are connected by a slope 12j1 on the side of the connecting portion 12k (details will be described later) and a slope 12j2 on the opposite side to the side of the connecting portion 12k. Yes.

Further, as shown in the FF cross-sectional view of FIG. 7, the second convex portion 12 has an elongated connecting portion 12k that connects the high convex portion 12a and the low convex portion 12b and integrates them. The connecting portion 12k extends from the high convex portion 12a and extends to the vicinity of the bottom surface 3a while maintaining the height of the high convex portion 12a. That is, a part of the high convex part 12a forms a part of the connecting part 12k. Moreover, the upper surface of the connection part 12k and the flat upper surface 12a1 of the high convex part 12a become the same plane.

As shown in the GG sectional view of FIG. 7, the connecting portion 12k is also integrated with the low convex portion 12b of the adjacent second convex portion 12. That is, the adjacent low convex portions 12b are connected in the circumferential direction by the connecting portion 12k. The upper surface of the connecting portion 12k is a flat surface (actually, a surface that is slightly curved in the circumferential direction along the inner peripheral surface of the cap 3). The bottom surface 3 a side of the connecting portion 12 k is connected to the thick portion 3 b of the cap 3. Moreover, the upper surface of the connection part 12k and the upper surface 12b1 of the low convex part 12b are connected by the inclined surface 12n. That is, the right slope 12n and the right slope 12j in the EE cross-sectional view form the same plane.

7 is a cross-sectional view of the gap between adjacent high convex portions 12a. That is, it is a cross-sectional view of a portion where the thread 4 of the container body 2 enters in the linear direction, that is, a portion corresponding to a conventional screw groove. A gap between adjacent high convex portions 12a is an inner peripheral surface of the cap 3, and is an elongated narrow thread groove 5c. On the straight line connecting the narrow thread groove 5c and the bottom surface 3a of the cap 3, the first thread groove wide part 5a, the low convex part 12b, the second thread groove wide part 5b from the bottom surface 3a side, And the narrow screw groove 5c exists in this order.

7 is a view showing a cross section in the circumferential direction of the second wide groove portion 5b. The second wide thread groove portion 5b and the upper surface of the connecting portion 12k are connected by an inclined surface 12p. The shape of the second thread groove wide portion 5b in this cross section is an isosceles trapezoid. The cross section in the circumferential direction of the first wide groove portion 5a is also substantially the same as this JJ cross section. 7 cut along the line K2-K2 is shown as the end face state of the right screw engaging portion of FIGS. 1 and 3, and shows the end face state of the second convex portion 12 of the cap 3. Become. 7 cut along the line K3-K3 shows the end surface on the cap 3 side of the left side screw engaging portion in FIGS. 1 and FIG. 2 shows the state of the end surface of the left side screw engaging portion on the container body 2 side, which is cut along the line AA in FIG.

7 is a view showing a cross section in the circumferential direction of the protrusion 14. The height of the upper surface 14a of the protruding portion 14 is slightly lower than the connecting portion 12k. However, it may be the same height as the connecting portion 12k. The upper surface 14a and the 1st thread groove wide part 5a are connected by the slope 14b. The protruding portion 14 protrudes from the high convex portion 12a into the screw groove 5 by a maximum distance W1 on the first screw groove wide portion 5a side and a minimum distance W2 on the upper surface 14a side. FIG. 7 is a cross-sectional view taken along the line RR shown in the QQ cross-sectional view. The protruding portion 14 protrudes from the high convex portion 12a in a peninsular shape. Therefore, the slope 14b has a shape resembling a frustoconical side surface. That is, the protrusion 14 has a shape that becomes a left half or a right half when the truncated cone is cut into left and right halves. Further, as shown in the DD cross-sectional view, the base side of the projecting portion 14 is installed so as to overlap the slope 12h of the low convex portion 12b.

(Opening and closing operation of the sealed container 1)
FIG. 8 is a schematic perspective view showing the relationship between the thread 4 and the second convex portion 12 when the container body 2 and the cap 3 are engaged. That is, FIG. 8 is a diagram showing a state when the container body 2 and the cap 3 are to be screwed together. In this figure, it is a figure in case the 1st convex part 11 is engaged with the thread groove 5 which has the protrusion part 14 among the screw threads 4. FIG. However, when the third convex portion 13 of the screw thread 4 engages with the screw groove 5 having the protruding portion 14, that is, the first convex portion 11 moves to the screw groove 5 without the protruding portion 14. May also engage.

The container body 2 and the cap 3 are tightened by relatively moving in the direction in which the container body 2 and the cap 3 are relatively approached and in the linear direction of the thread 4 and the thread groove 5. In this description, it is assumed that the cap 3 side, that is, the second convex portion 12 side is fixed and the container body 2 side moves. That is, a state in which the screw thread 4 moves in the linear direction along the arrow direction of the arrow X will be described. However, usually, the container body 2 is fixed and the cap 3 is often operated so as to be screw-engaged with the container body 2.

The first convex portion 11 passes through the narrow screw groove 5c that is a gap between the two high convex portions 12a. At that time, the

slopes

11f, 11f, 11g, and 11g of the first convex part 11 are respectively opposed to the slopes of the second convex part 12 (the slope 12j of the high convex part 12a and the slope 12n of the connecting part 12k). The first protrusion 11 and the screw groove 5 are engaged with each other. And the high protrusion 11a of the 1st convex part 11 progresses to the 2nd groove wide part 5b, and also approaches the low convex part 12b of the 2nd convex part 12. FIG. Then, the slope 11d on the distal end side of the high protrusion 11a of the first protrusion 11 collides with the slope 12h on the opening side of the cap 3 of the low protrusion 12b. When the first protrusion 11 is further advanced along the arrow X in the bumped state, the high protrusion 11a of the first protrusion 11 moves radially inward or elastically while the inclined surface 11d and the inclined surface 12h rub against each other. It deforms, and / or the low convex part 12b moves or elastically deforms radially outward. Then, the high protrusion 11a gets over the low protrusion 12b, and the high protrusion 11a and the low protrusion 12b are locked with each other.

FIG. 9 is a simplified diagram showing the positional relationship between the first convex portion 11, the high convex portion 12 a, and the protruding portion 14 immediately before the high convex portion 11 a gets over the low convex portion 12 b and engages with each other. is there. At this stage, the portion close to the wall surface 11e of the first convex portion 11 straddles the extension line S of the wall surface 12g of the high convex portion 12a. FIG. 10 shows the first convex portion 11, the high convex portion 12 a, and the protruding portion after the slope 11 d of the first convex portion 11 hits the slope 14 b of the protruding portion 14 after the state shown in FIG. 9. 14 is a simplified diagram showing a positional relationship of 14. Even after the inclined surface 11d of the first convex portion 11 hits the inclined surface 14b of the projecting portion 14, if the first convex portion 11 is further advanced along the arrow X shown in FIG. Along the arrow Y, that is, in the circumferential direction. The movement distance in the circumferential direction is a range of distances W1 to W2 shown in the QQ sectional view of FIG. 7 or a distance slightly exceeding the distance W1. Then, the first convex portion 11 relatively moves in the circumferential direction by the moving distance, and the wall surface 11e of the first convex portion 11 comes into contact with the wall surface 12g of the high convex portion 12a and locks each other. It will be. At this time, the high protrusion 11a moves relative to the first thread groove wide portion 5a in the circumferential direction (hereinafter may be referred to as “first movement to Y”). That is, the first convex portion 11 enters the first and second

wide groove portions

5a and 5b by the direction changing action of the protruding portion 14.

FIG. 11 is a schematic cross-sectional view showing a state of the first convex portion 11 and the low convex portion 12b in a state in which the high protrusion 11a gets over the low convex portion 12b and is engaged with each other. In this locked state, the slope 11c of the high protrusion 11a is strongly engaged with the slope 12h on the bottom surface 3a side of the cap 3 of the low protrusion 12b. In this locked state, the upper surface 11b1 of the low protrusion 11b is in contact with the upper surface 12b1 of the low convex portion 12b. In this locked state, as shown in FIG. 1, the packing 7 is pressed by the opening end of the container body 2, and the container body 2 and the cap 3 are sealed. In this locked state, the packing 7 is pressed by 0.1 mm, but the packing 7 may be pressed by a large relative rotation in the circumferential direction described later.

In order to perform the above operation, that is, the container body 2 and the cap 3 are tightened while relatively rotating, and finally move slightly in the same direction, the user moves the opening of the cap 3 to the container body. 2 and press the outer bottom surface of the cap 3 with a finger or the like. The reason why the operation of rotating the cap 3 is not required is because the lead angles α and β of the screw engaging portion are 30 ° and a large rotation angle is not required. The user confirms that this locking is achieved, that is, the slope 11d of the first protrusion 11 has hit the slope 14b of the protrusion 14, and the high protrusion 11a has overcome the low protrusion 12b. It can be recognized as an impact like a click feeling.

Next, a description will be given of the case of relative rotation in the circumferential direction from the locked state shown in FIGS. 10 and 11 (hereinafter sometimes referred to as “second movement to Y”). In this description, the operation of moving the first convex portion 11 in the direction of arrow Y (circumferential direction) shown in FIG. 8 will be described as an example. 10 and 11, the wall surface 12g of the high convex portion 12a and a part of the wall surface 11e of the first convex portion 11 are in contact with each other. Therefore, the first protrusion 11 can move while the inclined surface 11c of the high protrusion 11a is rubbed in the direction of arrow Y with the inclined surface 12h of the bottom surface 3a of the cap 3 of the low protrusion 12b. Become.

FIG. 12 is a schematic cross-sectional view showing the state of the first convex portion 11, the low convex portion 12b, and the high convex portion 12a in this locked state. FIG. 1 also shows this state. In this locked state, the slope 11c of the high protrusion 11a is weakened or slightly separated from the engagement force with the slope 12h on the bottom surface 3a side of the cap 3 of the low convex portion 12b. However, the gap is slight and is shown as a contact state in FIG. Further, in this state, the upper surface 11b1 of the low protrusion 11b is in contact with the upper surface 12b1 of the low protrusion 12b. Furthermore, in this state, the wall surface 12g of the high convex portion 12a strongly presses the wall surface 11e of the first convex portion 11 as described above. In this locked state, as shown in FIG. 1, the packing 7 is kept pressed by the open end of the container body 2 and the container body 2 and the cap 3 are kept sealed. And the wall surface 12g of the high convex part 12a strongly presses the wall surface 11e of the 1st convex part 11, and thereby the inclined surface 11c of the high protrusion part 11a and the inclined surface 12h on the bottom surface 3a side of the cap 3 of the low convex part 12b. Engagement force is weakened or slightly separated. That is, the high convex portion 12a increases the tightening force between the container main body 2 and the cap 3, and prevents both from loosening.

In order to perform the above movement operation, the user relatively rotates the cap 3 and the container body 2 in the circumferential direction from the locked state of FIGS. 10 and 11. In the example described above, the container body 2 is slightly rotated in the direction of the arrow Y. This rotation is considerably larger than the “first movement to Y”. By this “second operation to Y”, the container body 2 and the cap 3 are completely engaged, and the sealed state is maintained. Further, in order to release this pressed state (sealed state), the cap 3 and the container body 2 are relatively rotated in opposite directions. In the example described above, the user slightly rotates the cap 3 in the circumferential direction with respect to the container body 2 and in the direction opposite to the arrow Y. Furthermore, in order to release the locked state and remove the cap 3 from the container body 2, the two are moved apart while relatively rotating in the opposite direction. In the above example, the user moves the container body 2 in the direction opposite to the arrow X while rotating the container body 2 in the direction opposite to the arrow Y from the above-described locked state.

In addition, in the opening / closing operation | movement of the sealed container 1 of this Embodiment, the case where the 1st convex part 11 among the screw threads 4 engages with the screw groove 5 which has the protrusion part 14 is described. However, the same opening / closing operation is performed when the third protrusion 13 of the screw thread 4 is engaged with the screw groove 5 having the protrusion 14. However, since the third protrusion 13 does not have the high protrusion 11a, a state in which the third protrusion 13 gets over the low protrusion 12b and is locked with each other cannot be obtained.

(Main effects obtained by the embodiment of the present invention)
In the sealed container 1 according to the embodiment of the present invention, the screw thread 4 enters the first and second

wide groove portions

5a and 5b by the direction changing action of the projecting portion 14, so that the cap 3 and the container main body 2 Can be locked together. Since the sealed container 1 can accommodate all such configurations in the screw engaging portion, it is possible to provide the sealed container 1 capable of exhibiting a loosening prevention effect without increasing the size of the sealed container 1.

The sealed container 1 can further rotate the cap 3 and the container body 2 relative to each other in the circumferential direction from the state in which the thread 4 is inserted into the first and second

wide groove portions

5a and 5b. Therefore, since the screw thread 4 can be inserted into a deeper portion of the first and second

wide groove portions

5a and 5b, the above-described loosening prevention effect can be further ensured.

The protruding portion 14 is a protruding portion 14 that is provided on a side portion of the screw groove 5 that engages with the screw thread 4 and protrudes into the screw groove 5 in the circumferential direction. Further, the protruding portion 14 generates a part or all of the force for tightening the container body 2 and the cap 3 in the direction along the linear direction of the screw thread 4 and the screw groove 5. The thread groove

wide portions

5a and 5b are relatively close to each other in the circumferential direction, and the screw thread 4 is converted into a force that makes the first and second thread groove

wide portions

5a and 5b enter. Therefore, the above-described loosening prevention effect can be obtained only by the operation of tightening in the direction along the line direction, and no special operation for obtaining the loosening prevention effect is required.

Further, the packing 7 is disposed between the open end of the container body 2 and the bottom surface 3a of the cap 3, and the first and second wide

thread groove portions

5a and 5b and the thread 4 are engaged by the protruding portion 14. The packing 7 is in a crushed state. Therefore, the sealed container 1 has a higher sealing degree. Further, by covering the entire bottom surface 3a of the cap 3 with the packing 7, the recessed portion 3d formed at the end of molding of the cap 3 can be hidden, and the sealed container 1 can be made visually attractive. Further, the sealing 7 can provide high sealing performance even if the rotational operation for screw connection is as small as 30 ° to 40 °, for example.

Further, when the cap 3 is tightened into the container body 2 in the direction along the linear direction of the thread 4 and the thread groove 5, the thread 4 gets over the low convex portion 12 b provided in the thread groove 5 and They are locked together. Therefore, the above-described loosening prevention effect can be further ensured.

The first convex portion 11 is composed of a high protruding portion 11 a on the front end side of the opening of the container body 2 and a lower protruding portion 11 b subsequent thereto, and the second convex portion 12 is provided on the opening side of the cap 3. The high high convex portion 12a and the low high convex portion 12b provided on the opposite side of the high convex portion 12a are provided. And the 1st, 2nd thread groove

wide part

5a, 5b is the 1st thread groove wide part 5a provided in the opposite side to the high convex part 12a of the 2nd convex part 12, and the high convex part 12a. It is comprised from the 2nd thread groove wide part 5b provided between the low convex parts 12b, and before the relative rotation of the circumferential direction, the high protrusion 12a enters the 1st thread groove wide part 5a, and the circumferential direction After the relative rotation, the high protrusion 12a is maintained in the first thread groove wide part 5a, and the wall surface 11e of the low protrusion 11b is locked to the high protrusion 12a. Therefore, the structure of the sealed container 1 that can move in the direction of the arrow Y shown in FIG. 6 and that has improved sealing performance can be realized.

Moreover, the low convex part 12b is installed in the state which connects the adjacent screw thread 4, and is made into the trapezoid shape which has the

inclined surfaces

12h and 12h on both sides of a filament direction. Therefore, the operation when the screw thread 4 gets over the low convex portion 12b can be made smooth.

Moreover, the high convex part 12a has the recessed part 12e in which the center part was dented. Therefore, sink marks at the time of molding the cap 3 can be reduced, and molding accuracy can be increased.

Moreover, since the lead angles α and β of the screw thread 4 and the screw groove 5 are 30 °, when the sealed container 1 is opened and closed, the rotational operation for screw connection is as small as about 40 ° in the circumferential direction. can do. Thus, since there is little rotation operation, sealing of the sealed container 1 is realizable by putting the cap 3 on the container main body 2, and pressing it down. Further, the direction changing action of the protruding portion 14 can be achieved by only one operation of such pressing, and the first convex portion 11 enters the first and second wide

thread groove portions

5a and 5b, and the above-described operation is performed. Can be achieved.

Further, when the slope 11d of the first convex portion 11 hits the slope 14b of the protruding portion 14 and when the first convex portion 11 gets over the low convex portion 12b, the user feels it by the impact of the click feeling. Since it can be recognized, the user can confirm that the sealed container 1 is sealed and that the seal is released.

(Other forms)
Although the sealed container 1 in the embodiment of the present invention has been described above, various modifications can be made without departing from the gist of the present invention.

The sealed container 1 according to the embodiment of the present invention includes a container body 2 and a screw provided on the container body 2 side in the sealed container 1 that is fastened by screwing a cap 3 that closes an opening provided in the container body 2. The crest 4 and a thread groove 5 provided on the cap 3 side are configured to be engageable with each other, and the thread groove 5 has a circumferential width that is locally wide at a position where the thread groove 5 enters from the entrance to the back side. The container body 2 and the cap 3 when the container body 2 and the cap 3 are tightened in the direction along the linear direction of the thread 4 and the thread groove 5. Is protruded to allow the screw thread 4 to enter the first and second

wide groove portions

5a and 5b.

However, the screw thread 4 may be provided on the cap 3 side, and the screw groove 5 may be provided on the container body 2 side. Further, although two thread groove wide portions are provided in each thread groove 5, one may be provided for each.

The protruding portion 14 is provided on the side of the screw groove 5 that engages with the screw thread 4 and protrudes into the screw groove 5 in the circumferential direction. The protruding portion 14 connects the container body 2 and the cap 3 to the screw thread. 4 and the screw thread 4 and the first and second wide thread groove

wide portions

5a and 5b are relatively circumferential in a part or all of the tightening force in the direction along the linear direction of the thread groove 5 Approaching, the screw thread 4 is converted into a force that causes the first and second thread groove

wide portions

5a and 5b to enter. The protruding portion 14 is rounded out like a peninsula from the high convex portion 12a, and the inclined surface 14b has a shape similar to a side surface of a truncated cone shape. However, the shape, arrangement position, and the like of the protruding portion 14 can be changed as appropriate. For example, the shape of the protrusion 14 may be a triangular prism shape, a semi-cylindrical shape, or the like. Further, the protruding portion 14 may be provided on the rear side portion of the screw thread 4.

Further, the sealed container 1 can further relatively rotate the cap 3 and the container main body 2 in the circumferential direction from the state in which the screw thread 4 enters the first and second

wide groove portions

5a and 5b. However, relative rotation in the circumferential direction from the state shown in FIG. 10 may be impossible. The sealed container 1 can sufficiently realize the above-described loosening prevention effect even in the state shown in FIG.

Further, when the cap 3 is tightened into the container body 2 in the direction along the linear direction of the thread 4 and the thread groove 5, the thread 4 gets over the low convex portion 12 b provided in the thread groove 5 and They are locked together. However, the low convex portion 12b may not be provided. For example, the wall surface 12g of the high convex portion 12a and the wall surface 11e of the screw thread 4 may be brought into contact with each other, and the cap 3 and the container body 2 may be locked only by pressing both. In the present embodiment, half of the thread 4 is the first convex part 11 and the other half is the third convex part 13, but all of the thread 4 is also the first convex part 11. good. Further, the entire thread 4 may be the third convex portion 13. Furthermore, although the 1st convex part 11 and the 3rd convex part 13 are alternately arrange | positioned in the circumferential direction of the opening part of the container main body 2, such arrangement | positioning is not made, for example, the 3rd convex part 13 is made into 1st. It is good also as arrange | positioning every 2nd, 3rd, or 4th of 1 convex part 11. FIG. Alternatively, the positional relationship between the third convex portion 13 and the first convex portion 11 may be reversed.

thread groove portions

5a and 5b and the thread 4 are engaged by the protruding portion 14. The packing 7 is in a crushed state. However, the packing 7 is not essential and can be omitted. For example, the bottom surface 3a of the cap 3 and the open end of the container body 2 may be in close contact to realize sealing.

Further, in order to realize the sealing between the bottom surface 3a of the cap 3 and the open end of the container main body 2, a configuration as shown in FIGS. 13, 14, and 15 may be adopted. That is, a rib 6 that protrudes in an annular shape is formed at the end of the inner bottom surface 3 a of the cap 3 while forming a gap 3 f with the inner peripheral surface 3 a of the cap 3. The wall 2d surrounding the opening is inserted into the gap 3f. The rib 6 is inclined with respect to a surface orthogonal to the inner bottom surface 3a of the cap 3 so as to press the inner peripheral surface 3e of the opening from the inside to the outside, and the first and second screw grooves are formed by the projecting portion 14. The wall 2d may be inserted into the gap 3f in a state where the

wide portions

5a, 5b and the thread 4 are engaged, and the container body 2 and the cap 3 may be engaged with each other. FIG. 13 is a cross-sectional view showing the state of the wall 2d of the container body 2 and the cap 3, and shows the state before the “first operation to Y” is completed. FIG. 14 is a cross-sectional view showing the state of the wall 2d of the container body 2 and the cap 3, and shows the state after the “first operation to Y” is completed. FIG. 15 is an enlarged cross-sectional view of the rib 6 shown in FIGS. 13 and 14 and its surroundings.

As shown in FIGS. 13, 14, and 15, among the outer peripheral surfaces of the ribs 6 facing the inner peripheral surface 3 e of the cap 3, the base-side surface 6 a close to the inner bottom surface 3 a of the cap 3 is the cap 3. It is a conical surface having an inclination angle γ with respect to a surface P that stands upright with the inner bottom surface 3a and passes through the intersection of the base side 6a and the inner bottom surface 3a. Subsequent to the base-side surface 6a, a central surface 6b composed of a surface parallel to the surface P is disposed. Further, a tapered surface 6c1 that widens the gap 3f between the inner peripheral surface 3e of the cap 3 and the rib 6 is formed on the tip surface side 6c of the rib 6. Here, the length L1 from the inner bottom surface 3a to the tip of the rib 6 is 4.0 mm, the length L2 from the inner bottom surface 3a to the tip of the base side surface 6a is 1.5 mm, and the central surface 6b. The length L3 of the rib 6 is 2.0 mm, and the width L4 on the tip side of the rib 6 is 1.0 mm. The protrusion length L5 of the rib 6 into the gap 3f is 0.1 mm, the root width L6 of the rib 6 is 1.4 mm, and the outer diameter L7 of the rib 6 is 60.85 mm. Furthermore, the inner side surface of the base of the rib 6 is a curved surface 6d having a curvature of 1.0 mm. The length L1 to the length L2 is preferably 8: 1 to 8: 5. Further, the length L2 to the length L3 is preferably 1: 2 to 2: 2. Further, the length L1 to the width L4 are preferably 8: 1 to 8: 3. Further, the inclination angle α is 4 degrees. This inclination angle is preferably 2 to 6 degrees.

Here, the container body 2 is integrally formed with the thread 4 as described above. Moreover, the cap 3 is integrally formed with the thread groove 5 and the rib 6 as described above.

When the container body 2 and the cap 3 are relatively moved in the linear direction so as to be relatively close to each other and tightened, the end 2e of the wall 2d is tapered on the tip surface side 6c of the rib 6 as shown in FIG. I hit 6c1. When the tightening is further advanced, the end 2e pushes the inclination of the taper 6c1 to incline the rib 6 inward in the radial direction of the cap 3. Thereafter, the wall 2 d is inserted into the gap 3 f of the cap 3.

In the inserted state as shown in FIG. 14, the side surface of the center surface 6b of the rib 6 presses the inner peripheral surface 2f of the wall 2d, the end 2e presses the inner bottom surface 3a of the gap 3f, and The inner peripheral surface 3e of the cap 3 presses the outer peripheral surface 2g of the wall 2d. A high degree of sealing of the sealed container 1 is realized by pressing these three places. In addition, it is set as the press of only the other two places without the press of the inner peripheral surface 3e and the outer peripheral face 2g, or only the other two places without the press of the end 2e and the inner bottom face 3a, instead of the press at the three places. It is good also as a press.

Here, the tip surface side 6c of the rib 6 is formed with a tapered surface 6c1 that widens the gap 3f between the inner peripheral surface 3e of the cap 3 and the rib 6. However, the tapered surface 6c1 may be omitted. Further, although the tapered surface 6c1 is formed on a part of the distal end surface side 6c, the entire distal end surface side 6c may be tapered.

Further, the inclination angle γ that is the maximum inclination angle of the surface of the rib 6 facing the inner peripheral surface 3e of the cap 3 with respect to the surface P orthogonal to the inner bottom surface 3a of the cap 3 is 4 degrees. However, the maximum inclination angle γ is not limited to 4 degrees. For example, the inclination angle γ, which is the maximum inclination angle, can be set to 1 degree or more and 10 degrees or less. By setting the inclination angle γ to 1 ° or more, a large elastic force for pressing the inner peripheral surface 2f of the wall 2d by the rib 6 can be obtained. Further, by setting the inclination angle γ, which is the maximum inclination angle, to 10 degrees or less, it is easy to perform die cutting when the cap 3 is molded. The inclination angle γ is preferably 2 degrees or more and 6 degrees or less.

Further, nothing is interposed between the end 2e and the inner bottom surface 3a of the gap 3f, but packing or the like may be interposed to further increase the sealing degree of the sealed container 1. In this case, the packing material is preferably a silicone resin, for example.

inclined surfaces

12h and 12h on both sides of a filament direction. However, the inclined surface 12h may not be provided, or a curved surface may be used instead of the inclined surface 12h. Further, the inclined surface 12h may be provided only on one side in the linear direction of the low convex portion 12b.

Moreover, the high convex part 12a has the recessed part 12e in which the center part was dented. However, the upper surface of the high convex portion 12a may be a flat surface over the entire area. The wall surface 12g is a surface parallel to the circumferential direction. The wall surface 12g is an inclined surface that approaches the inner bottom surface 3a of the cap 3 as the distance from the narrow screw groove 5c increases, or the wall surface 11e is an inclined surface. When the convex portion 11 is rotated in the direction of the arrow Y in FIG. 8, the close contact strength with the wall surface 12g may be increased. Moreover, you may make it increase press strength by making both

wall surface

11e and 12g into a slope.

The wall surface 11e of the screw thread 4 forms an angle of about 90 ° from the upper surface of the low protrusion 11b, and the wall surface 12g of the high convex portion 12a that presses against the wall surface 11e is about 90 ° from the upper surface of the high convex portion 12a. The angle is made. However, for example, the portion where the low protrusion 11b of the high convex portion 12a comes into contact may be made as such, and the base side which is the other portion may be an inclined surface gradually approaching the low convex portion 12b.

Further, the same number of screw threads 4 as the screw grooves 5 are formed. However, for example, the thread 4 may be formed every other, every second, every third, every fourth, or every fifth of the thread groove 5. Further, at least three screw threads 4 may be provided at intervals of 30 ° or more and 150 ° or less of the outer periphery of the container body 2. By reducing the number of the threads 4, the moldability of the container body 2 is improved. For the same reason, the second protrusions 12 may be formed every other screw thread 4, every second, every third, every fourth, or every fifth. Moreover, it is good also as having 2 or more 2nd convex parts 12 with the space | interval of 30 degrees or more and 150 degrees or less of the inner periphery of the cap 3. FIG.

In the present embodiment, the lead angles α and β of the sealed container 1 are set to 30 °, but are not limited to these angles. However, by setting the lead angles α and β to 10 ° or more, the number of rotations (rotation angles) for attaching and detaching the cap 3 to the container main body 2 can be reduced, and the use can be facilitated. Further, by setting the lead angles α and β to 80 ° or less, the hermetic container 1 can satisfactorily realize the screw connection by the engagement between the screw thread 4 and the screw groove 5 and can increase the bonding force. .

The packing 7 covers the entire area of the bottom surface 3a of the cap 3. However, the packing 7 may be formed in a ring shape and disposed only on the opening end of the container body 2 and pressed.

Further, when the inclined surface 11d of the first convex portion 11 hits the inclined surface 14b of the protruding portion 14 and when the screw thread 4 gets over the low convex portion 12b, it is not always necessary to obtain an impact of clicking feeling. . Moreover, even if an impact is obtained, the impact does not have to be a click feeling. Furthermore, the material of the cap 3 and the container body 2 is a polyolefin resin, but other materials may be employed. The material is preferably a resin material, but other materials such as a metal material, a glass material, and wood may be used. Here, any one of the container main body 2 and the cap 3 can be made of a material having elasticity that can change its shape relatively easily, such as a resin. When one of the container body 2 and the cap 3 is made of resin in this way, the cap 3 is made of a soft resin such as urethane or silicone in consideration of the deflection during the opening / closing operation of the sealed container 1, and the container The main body 2 is preferably a metal material, a glass material, or the like.

Further, when the user uses the sealed container 1 without carrying it around, the sealing property of the sealed container 1 is ensured as shown in FIG. 10, the sealed container 1 is carried around, and an impact is given to the sealed container 1. In the case of using, it is possible to devise a usage method such as further securing the sealing property of the sealed container 1 by performing the operation of the arrow X and the second operation to Y from the state.

FIG. 16 is a view showing a modified example of the sealed container 1 according to the present embodiment, in which only the shape of the high convex portion 12a is different from that of the sealed container 1. The members or portions corresponding to the respective members or portions of the sealed container 1 are denoted by the same reference numerals, and the description thereof is omitted. On the wall surface 12g of the high convex portion 12a, a rounded protruding portion 12m protruding at a maximum of 0.15 mm in a direction orthogonal to the wall surface 12g is formed at the end opposite to the connecting portion 12k. .

FIG. 17 is a diagram showing a state in the middle when the second operation to the arrow Y described above is performed on the sealed container of this modified example. The wall surface 11e of the screw thread 4 is in the middle of going over the protruding portion 12m, and the wall surface 11e and the protruding portion 12m are pressed against each other. In this state, the crushing amount of the packing 7 is 0.25 mm (the crushing amount of the packing 7 when the operation of the arrow X is finished is 0.1 mm).

FIG. 18 and FIG. 19 are views showing a state in which the second operation to the arrow Y described above is performed on the sealed container of this modified example and finished. The wall surface 11e of the screw thread 4 gets over the protruding portion 12m, and the wall surface 11e and the wall surface 12g are in contact with each other. In this state, the crushing amount of the packing 7 returns to 0.1 mm. When the user changes from the state shown in FIG. 17 to the state shown in FIG. 18, that is, when the wall surface 11e of the screw thread 4 descends from the projection 12m, the user feels a click feeling as an impact between the wall surface 11e and the wall surface 12g. Can feel. FIG. 19 shows an LL cross-sectional view of FIG. 18 and a cross-sectional view taken along two cutting lines of the protrusion 12m. The protruding portion 12m extends to the slope 12j2 side of the wall surface 12g, and the portion of the cutting line MM is the highest.

Further, the protrusion 12m may be hemispherical as shown in FIG. 20, or may be long as shown in FIG. Further, in the case where the projecting portion 12m does not have a click feeling when completely closed and the purpose is simply to increase the sealing degree, the installation position of the projecting portion 12m is set to the connecting portion 12k as shown in FIG. It may be on the near side.

Furthermore, it is good also as what mixed the projection part 12m and the inclination of angle (alpha). FIG. 22 shows this example. In the example of FIG. 22, the protrusion 12m is formed of an inclined surface 12g1 and a parallel surface 12g2. In this example, a click feeling does not occur, but it is easy to maintain a high sealing degree.

In addition, although the material of the container body 2 is a polyethylene resin, other materials such as a polyolefin resin such as a polypropylene resin may be employed. The cap 3 is made of polypropylene resin, but other materials such as polyethylene terephthalate, polyethylene, copolymerization of acrylonitrile and styrene, polyethylene naphthalate, or the like may be used. However, since the cap 3 made of polypropylene resin has high elasticity, it becomes a preferable configuration when combined with the container body 2 made of polyethylene resin having lower elasticity. Moreover, as materials other than the resin material, other materials such as a metal material, a glass material, and wood can be employed. The resin material is preferably a soft resin material such as urethane or silicone in consideration of the deflection during the opening / closing operation of the sealed container 1.

Further, although the fastening member is the sealed container 1, a fastening member other than the container, for example, one member may be a bolt and the other member may be a nut, and may be a fastening member that is screwed together. Further, the above-described configuration can be applied to a connecting portion using various types of rod screws such as a flag rod and a fishing rod. Furthermore, the above-described configuration can be applied to a connecting portion using screws of various assembly-type products such as assembly-type desks, chairs, billiard cues, and the like. Further, when the fastening member is a container such as the sealed container 1, the contents thereof are not limited to cosmetics but can be beverages, foods, medicines, accessories, and the like. Furthermore, when the fastening member is a container, the container does not need to be a sealed container having excellent sealing performance.

1 Sealed container (fastening member)
2 Container body (one member, the other member)
2d Wall 2f Inner peripheral surface 3 Cap (the other member, one member)
3a inner bottom surface 3e inner peripheral surface 3f gap 4 thread 5 thread groove 5a first thread groove wide part (thread groove wide part)
5b Second thread groove wide part (thread groove wide part)
6 Rib 7 Packing 11 1st convex part 12 2nd convex part 14 Protruding part (direction changing part)

Claims

In a fastening member that is fastened by screwing two members together,
A thread provided on one member side and a thread groove provided on the other member side are configured to be engageable, and the thread groove has a circumferential width at a position where it enters the back side from the entrance. When the one member and the other member are tightened in the direction along the linear direction of the screw thread and the screw groove, the one member and the above member are provided. A fastening member comprising a direction changing portion for rotating the other member in the circumferential direction relative to each other and causing the screw thread to enter the wide groove portion.
The fastening member according to claim 1,
The direction changing portion is a protruding portion that is provided on a side portion of the screw groove that engages with the screw thread and protrudes in the circumferential direction into the screw groove,
The protruding portion is configured so that a part or all of a force for tightening the one member and the other member in a direction along a line direction of the screw thread and the screw groove is the screw thread and the screw groove wide width. The fastening member is characterized in that the portion is relatively moved in the circumferential direction, and the screw thread is converted to a force that enters the wide groove portion.
The fastening member according to claim 1 or 2,
A fastening member, wherein the one member and the other member can be further rotated relative to each other in the circumferential direction from the state in which the screw thread enters the wide groove portion.
In the fastening member according to any one of claims 1 to 3,
When the one member and the other member are tightened in the direction along the linear direction of the screw thread and the screw groove, part or all of the first convex portion that becomes the screw thread is the screw A fastening member, wherein the fastening member climbs over a part of the second convex portion provided in the groove and engages with each other.
In the fastening member according to any one of claims 1 to 4,
The fastening is characterized in that the one member is a container body, the other member is a cap for closing an opening provided in the container body, and the fastening member is a container including the container body and the cap. Element.
The fastening member according to claim 5,
The packing is disposed between the opening end of the opening of the container main body and the bottom surface of the cap, and the packing is crushed in a state where the thread groove wide portion and the thread are engaged by the direction changing portion. The fastening member characterized by becoming.
The fastening member according to claim 5,
An end of the inner bottom surface of the cap is provided with a rib protruding in an annular shape while forming a gap with the inner peripheral surface of the cap,
The wall portion surrounding the opening is inserted into the gap, and the rib is formed on a surface orthogonal to the inner bottom surface of the cap so as to press the inner peripheral surface of the opening from the inside to the outside. Inclined against
The wall portion is inserted into the gap in a state where the thread groove wide portion and the screw thread are engaged by the direction changing portion, and the container main body and the cap are engaged with each other. Fastening member to be used.