JP5681888B2 - Fastening structure and container - Google Patents

Description

  The present invention relates to a fastening structure and a container.

  There are various methods such as screws for fastening the two members such as the container body and the lid. In the case of fastening with screws, in order to fasten the two together, the container body and the lid are relatively rotated several times. In particular, in order to increase the airtightness, the container main body and the lid are rotated until a sufficient tightening torque is obtained.

  As another method, there is a method of fastening the container body and the lid by undercut fitting. When fastening the container main body and the lid by undercut fitting, the container main body and the lid are pressed against each other linearly so that the fitting is performed at the fitting portion formed on both, and the two are fastened. The Further, in the lid, an outer cylindrical portion is provided outside the inner cylindrical portion that performs undercut fitting, and the tip of the outer cylindrical portion is brought into contact with the tapered surface of the container body in a fastened state (for example, (See Patent Documents 1 and 2). As a result, by pinching the vicinity of the tip of the outer cylindrical portion, the tip of the outer cylindrical portion moves along the tapered surface of the container body, the entire lid including the outer cylindrical portion is pushed up, and the undercut fitting is released. The Therefore, according to this method, the fastening and the fastening release can be performed with a relatively simple operation.

Japanese Utility Model Publication No. 52-4353 No. 3-11165

  However, in the above-described undercut fitting method, the fastening can be performed by pressing both of them together, and the fastening can be released by pinching the vicinity of the tip of the outer cylindrical portion of the lid. If the fitting or the like is strengthened for reasons such as increasing the airtightness, the force required for fastening or unfastening increases. Therefore, since the power of the hand varies from person to person, it may be difficult for a person to fasten or unfasten. In addition, in the above-mentioned Patent Document 2, a technique that enables fastening release by rotating the lid is disclosed. However, the technique at the time of fastening is the same as the technique described in Patent Document 1.

  In the above-described undercut fitting method, when the vicinity of the tip of the outer cylindrical portion of the lid is strongly picked when the fastening is released, the lid is vigorously released from the container body by the elastic recovery force of the lid along with the release of the fitting. Sometimes fly. If the lid falls off in this way, the lid is damaged or lost, or the lid falls on the ground or the floor, which is not preferable in terms of hygiene.

  As described above, it is difficult for many people to say that the operation at the time of fastening and the release at the time of fastening is simple for the above-described method using the undercut fitting.

  The present invention has been made in view of the above problems, and an object of the present invention is to obtain a fastening structure and a container that are easy to operate at the time of fastening and release of fastening for many people.

  In order to solve the above problems, the present invention is configured as follows.

One of the fastening structures according to the present invention is a fastening structure in which the first member and the second member are fastened to each other with rotation about the central axis and the fastened first member and second member are separated from each other. is there. The first member includes (a) an outer peripheral surface, (b) a tapered surface that is a part of the outer peripheral surface and is inclined in the radial direction of the first member, and (c) any one of a ridge, a groove, and a step. And (d) a first guide portion formed by a plurality of ridges or recesses arranged in the circumferential direction on the outer circumferential surface and inclined from the axial direction. With. The second member is formed in the circumferential direction of the inner peripheral surface of the cylindrical portion by (e) a cylindrical portion into which the end portion of the first member is inserted, and (f) any one of a convex line, a concave line, and a step. A second fitting portion that is fitted to the first fitting portion when the first member and the second member are fastened to each other; and (g) extending from the cylindrical portion along the outer peripheral surface of the cylindrical portion and fastening. A flexible outer tube portion having an open end disposed at a position facing the tapered surface in the state; and (h) a convex portion or a groove on the inner peripheral surface at a position in contact with the first guide portion in the tightened state. When the first member and the second member are fastened to each other, the first member and the second member are moved along the inclination of the first guide portion, and the first member and the second member are relatively rotated and moved along the axial direction. When the first fitting portion and the second fitting portion are fitted to each other, and the fastened first member and second member are separated from each other The first fitting portion and the second fitting portion are fitted together by proceeding along the inclination of the first guide portion, relatively rotating the first member and the second member, and proceeding along the axial direction. The 2nd guide part which cancels | releases. When the first member and the second member in the fastened state are separated from each other, the opening end advances along the tapered surface, thereby urging the second member in the direction of separation from the first member, and The fitting between the first fitting portion and the second fitting portion can be released while the second guide portion is advanced along the first guide portion of the first member.

  Thereby, the operation at the time of fastening and the release of fastening becomes easy for many people. Specifically, the first guide portion and the second guide portion can be fastened and unfastened by the same operation as that of the screw method in addition to the above-described operations at the time of fastening and fastening release. In the case of the screw method, it is easier for a person with weak hand strength to perform fastening and fastening release than the above-described operations at fastening and fastening release. Moreover, since the 1st guide part and the 2nd guide part mutually contact at the time of fastening cancellation | release, a lid | cover is difficult to fly off.

Another one of the fastening structures according to the present invention is that the first member and the second member are fastened to each other with rotation about the central axis, and the fastened first member and the second member are separated from each other. This is a fastening structure. The first member includes (i) an outer peripheral surface, (j) a tapered surface that is a part of the outer peripheral surface and is inclined in the radial direction of the first member, and (k) any one of a ridge, a groove, and a step. A first fitting portion formed in the circumferential direction of the outer circumferential surface; and (l) a first guide portion formed of a plurality of convex portions or concave stripes arranged in the circumferential direction on the outer circumferential surface. The second member is formed in the circumferential direction of the inner peripheral surface of the cylindrical portion by (m) a cylindrical portion into which the end portion of the first member is inserted, and (n) any one of the ridge, recess, and step. A second fitting portion that is fitted to the first fitting portion when the first member and the second member are fastened to each other; and (o) extending from the cylindrical portion along the outer peripheral surface of the cylindrical portion and fastening. A flexible outer tube portion having an open end disposed at a position facing the taper surface in the state; and (p) inclined from the axial direction on the inner peripheral surface to a position in contact with the first guide portion in the fastening state. When the first member and the second member are fastened together, the first member and the second member rotate relative to each other and rotate relative to each other. And advancing along the axial direction to fit the first fitting portion and the second fitting portion so that the first member and When the second members are separated from each other, the first guide portion is moved along the inclination of the second guide portion, and the first member and the second member are relatively rotated and moved along the axial direction. And a second guide part for releasing the fitting with the second fitting part. When the first member and the second member in the fastened state are separated from each other, the opening end advances along the tapered surface, thereby urging the second member in the direction of separation from the first member, and The fitting between the first fitting portion and the second fitting portion can be released while the second guide portion is advanced along the first guide portion of the first member.

  Thereby, the operation at the time of fastening and the release of fastening becomes easy for many people. Specifically, the first guide portion and the second guide portion can be fastened and unfastened by the same operation as that of the screw method in addition to the above-described operations at the time of fastening and fastening release. In the case of the screw method, it is easier for a person with weak hand strength to perform fastening and fastening release than the above-described operations at fastening and fastening release. Moreover, since the 1st guide part and the 2nd guide part mutually contact at the time of fastening cancellation | release, a lid | cover is difficult to fly off.

  In addition to the above fastening structure, the fastening structure according to the present invention may be as follows. In this case, the first guide part and the second guide part are multi-threaded screws.

  In addition to the above fastening structure, the fastening structure according to the present invention may be as follows. In this case, one of the first guide portion and the second guide portion has a first lead angle ridge and a second lead angle ridge. The first lead angle and the second lead angle are different from each other. And the other of the first guide part and the second guide part has two contact surfaces at an interval larger than the minimum interval between the first lead angle ridges and the second lead angle ridges and less than the maximum interval, In the fastened state, one of the two contact surfaces contacts the first guide part, the other contacts the second guide part, and the other tip part of the first guide part and the second guide part is the first part. It is sandwiched between the ridges of the lead angle and the ridges of the second lead angle and elastically deforms.

  In addition to the above fastening structure, the fastening structure according to the present invention may be as follows. In this case, the first member includes a third guide portion, and the second member includes a fourth guide portion. And a 4th guide part is a some convex part which protruded to the inner peripheral side in the inner peripheral surface near the opening end of a flexible outer cylinder part. The third guide portion is formed as a plurality of convex portions or concave portions each having a guide surface, and the guide surface is inclined in the radial direction of the first member, and the fourth guide portion faces in the fastened state. Is formed.

  Thereby, when an operation of gripping the vicinity of the tip of the outer cylinder part for fastening release is performed, the fourth guide part moves along the guide surface of the third guide part, and a rotational force is generated. It becomes easier to release the fastening.

  In addition to the above fastening structure, the fastening structure according to the present invention may be as follows. In this case, the third guide portion has guide surfaces at all angular positions where the fourth guide portion can be disposed in the fastened state.

  Thereby, when fastening a 1st member and a 2nd member, it can fasten even if it does not match both to a specific position about an angle direction.

  In addition to the above fastening structure, the fastening structure according to the present invention may be as follows. In this case, the plurality of convex portions or concave portions in the third guide portion are formed in pairs at positions facing each other on the circumference of the first member, and the plurality of convex portions in the fourth guide portion are the second It forms in a pair at the position which opposes on the circumference of a member.

  Thereby, when the vicinity of the tip of the outer cylinder part is picked with one hand for releasing the fastening, the fastening is easily released.

  In addition to the above fastening structure, the fastening structure according to the present invention may be as follows. In this case, each of the plurality of ridges or ridges of the first guide portion has a length that is half or less of the entire circumference in the circumferential direction (that is, the angle is 180 degrees or less). .

  Thereby, the rotation angle required at the time of fastening and fastening release decreases.

  In addition to the above fastening structure, the fastening structure according to the present invention may be as follows. In this case, each of the plurality of ridges or ridges of the second guide portion has a length of half or less of the entire circumference in the circumferential direction (that is, the angle is 180 degrees or less). .

  Thereby, the rotation angle required at the time of fastening and fastening release decreases.

  In addition to the above fastening structure, the fastening structure according to the present invention may be as follows. In this case, the lead angle of the multi-thread screw is any angle from 15 degrees to 80 degrees.

  Thereby, the rotation angle required at the time of fastening and fastening release decreases.

  A container according to the present invention is a container having any one of the above fastening structures, wherein one of the first member and the second member described above is a lid and the other is a container body.

  Thereby, the operation at the time of fastening and the release of fastening becomes easy for many people. Specifically, the first guide portion and the second guide portion can be fastened and unfastened by the same operation as that of the screw method in addition to the above-described operations at the time of fastening and fastening release. In the case of the screw method, it is easier for a person with weak hand strength to perform fastening and fastening release than the above-described operations at fastening and fastening release. Moreover, since the 1st guide part and the 2nd guide part mutually contact at the time of fastening cancellation | release, a lid | cover is difficult to fly off.

  ADVANTAGE OF THE INVENTION According to this invention, the fastening structure and container which are easy for the operation at the time of fastening and fastening cancellation | release for many people can be obtained.

FIG. 1 is a perspective view showing a container body and a lid having a fastening structure according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the container body in FIG. FIG. 3 is a development view showing the shape of the ridges in FIGS. 1 and 2. FIG. 4 is a perspective view showing the shape of the lid shown in FIG. FIG. 5 is a cross-sectional view of the lid in FIG. FIG. 6 is a development view showing the shape of the ridges in FIGS. 4 and 5. FIG. 7 is a diagram showing a positional relationship between the protruding ridges of the container body and the protruding ridges of the lid in Embodiment 1 in the fastening start process. FIG. 8 is a cross-sectional view showing a state in which the container body and the lid in Embodiment 1 are fastened. FIG. 9 is a cross-sectional view showing the container body and the lid in the first embodiment in the fastening release step. FIG. 10 is a development view showing an example of the ridges of the container body and the ridges of the lid in the second embodiment. FIG. 11 is a development view showing an example of one set of protrusions of the container body and one set of protrusions of the lid in the third embodiment. FIG. 12 is a development view showing an example of the ridges of the container body and the ridges of the lid in the fourth embodiment. FIG. 13 is a diagram showing the press-fitting of the protruding ridges of the lids into the set of protruding ridges of the container body in the fourth embodiment. FIG. 14 is a perspective view showing a container body and a lid having a fastening structure according to Embodiment 5 of the present invention. 15 is a cross-sectional view of the container body in FIG. FIG. 16 is a perspective view showing a container body and a lid having a fastening structure according to Embodiment 6 of the present invention. FIG. 17 is a partial cross-sectional view showing a container body and a lid having a fastening structure according to Embodiment 6 of the present invention. FIG. 18 is a perspective view showing the ventilation groove in FIG. FIG. 19 is an enlarged view of the ventilation groove in FIG. FIG. 20 is a cross-sectional view showing a fastening process in the fastening structure according to the sixth embodiment. FIG. 21 is a perspective view showing a container body and a lid having a fastening structure according to Embodiment 7 of the present invention. 22 is a front view showing a recess in the container main body shown in FIG. FIG. 23 is a cross-sectional view showing a convex portion in the lid shown in FIG. FIG. 24 is a cross-sectional view showing the shape of the convex portion in the lid shown in FIG. FIG. 25 is a top view showing a positional relationship between the concave portion of the container body and the convex portion of the lid in the fastening state and the fastening releasing step in the seventh embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.

  FIG. 1 is a perspective view showing a container body and a lid having a fastening structure according to Embodiment 1 of the present invention. In the fastening structure according to the first embodiment, the two members of the container main body 1 and the lid 2 are fastened or released. The container body 1 and the lid 2 can be repeatedly attached and detached. In FIG. 1, only the connection portion with the lid 2 of the container body 1 is partially illustrated.

  In the first embodiment, the container body 1 and the lid 2 are each manufactured by injection molding a resin material such as polypropylene or polyethylene. By such a resin material, the container main body 1 and the lid 2 have moderate elasticity as compared with a rigid material such as stainless steel, steel, or glass. One of the container body 1 and the lid 2 may be manufactured from a resin material, and the other may be manufactured from a rigid material such as stainless steel, steel, or glass. However, the outer cylinder part 26 (described later) of the lid 2 is always formed of a flexible material. Further, the container body 1 may be manufactured by blow molding.

  FIG. 2 is a cross-sectional view of the container body 1 in FIG. FIG. 2 shows an AA cross section parallel to the central axis of the container body 1.

  As shown in FIGS. 1 and 2, the container body 1 has a plurality of ridges (ridges 11 and ridges 12) formed on the outer peripheral surface of the cylindrical tip portion having the opening 1a. . The ridges 11 and the ridges 12 are arranged in the circumferential direction on the outer peripheral surface and are inclined from the axial direction, and are examples of first guide portions.

  One ridge 11 and one ridge 12 form a set. In the first embodiment, two sets of four sets of ridges are provided at two positions symmetrical to the central axis of the cylindrical tip portion of the container body 1. 11 and the ridges 12 are arranged along the outer periphery.

  FIG. 3 is a development view showing the shapes of the ridges 11 and 12 in FIGS. 1 and 2. FIG. 3 shows the shapes of the ridges 11 and 12 when the outer peripheral surface of the container body 1 is developed into a plane.

  The ridge 11 has a predetermined first lead angle A1, and is formed linearly, that is, in a substantially spiral shape, inclined on the outer peripheral surface of the cylindrical main body. In the first embodiment, the ridges 11 extend in the clockwise direction from the opening 1a side when viewed from the upper surface. Here, the first lead angle A1 is an arrangement angle of the ridges 11 and is an angle on the outer peripheral surface from a plane perpendicular to the central axis of the cylindrical shape. In the first embodiment, the first lead angle A1 is constant at any location on the ridge 11 except for the end portion. Moreover, in this Embodiment 1, the cross section perpendicular | vertical to the longitudinal direction of the protruding item | line 11 is made into the substantially trapezoid.

  Further, the ridge 12 has a predetermined second lead angle A2, and is inclined and linearly formed on the outer peripheral surface of the cylindrical main body, that is, substantially spiral. In the first embodiment, the ridge 12 extends in the clockwise direction from the opening 1a side as seen from the top surface, like the ridge 11. Here, the second lead angle A2 is an arrangement angle of the ridges 12, and is an angle on the outer peripheral surface from a plane perpendicular to the central axis of the cylindrical shape. In the first embodiment, the second lead angle A2 is constant at any location of the ridge 12 except for the end portion.

  The ridges 11 and the ridges 12 are multi-thread screws (male thread side). However, in the first embodiment, the second lead angle A2 is smaller than the first lead angle A1 by a predetermined angle. For example, the first lead angle A1 and the second lead angle A2 are between about 15 degrees and about 80 degrees (preferably between about 20 degrees and about 60 degrees). The difference between the lead angle A2 and the lead angle A2 is about 1 to 3 degrees. In the first embodiment, the first lead angle A1 is 30 degrees and the second lead angle A2 is 28 degrees.

  Therefore, the distance D between the ridges 11 and the ridges 12 is wider on the opening 1a side where the lid 2 advances during fastening, and narrower on the opposite side. That is, the distance D2 at one end of the ridges 11 and 12 is narrower than the distance D1 at the other end of the ridges 11 and 12.

  Furthermore, the arrangement of the ridges 11 and the ridges 12 is formed at a distance L from the cylindrical tip of the container body 1. For this reason, the introducing | transducing part of the length L in which the protruding strips 11 and 12 do not exist is formed. The length L is, for example, about 1/8 or more of the radius of the cylindrical tip of the container body 1. By this introduction portion, the container body 1 enters the lid 2 by a length L before the ridges 11 and 12 come into contact with the ridges 21 (described later) of the lid 2 in the fastening start process. And the center axis of the lid 2 are easily aligned.

  The lengths of the ridges 11 and 12 are determined so as to be within an angle range of about 180 degrees or less, preferably about 15 to 45 degrees (more preferably about 30 degrees) about the central axis. . That is, the ridges 11 and 12 have a length that is half or less of the entire circumference in the circumferential direction. Thereby, when the container main body 1 and the lid 2 are fastened, the fastening is completed only by the relative rotation of the container main body 1 and the lid 2 at most at this angle.

  Further, on the outer peripheral surface of the container body 1, ribs 13 that are ridges are formed at locations farther from the opening 1 a than the arrangement of the ridges 11 and 12. In the first embodiment, the rib 13 is a ring-shaped circumferential rib perpendicular to the central axis, and is a ridge having a curved surface. In the first embodiment, the rib 13 has a substantially semicircular cross section perpendicular to the outer peripheral surface and parallel to the central axis. The rib 13 is an example of a first fitting portion.

  Further, a part of the outer peripheral surface of the container body 1 is a tapered surface 14 inclined in the radial direction. In this embodiment, the tapered surface 14 is formed at a location farther from the opening 1 a than the rib 13. The tapered surface 14 may be formed over the entire circumference as shown in the figure, or may be formed only in a part of the angle range. The tapered surface 14 may be a smooth curved surface, or may be a stepped surface in which a plurality of steps that are small enough to prevent the tip of the outer cylindrical portion 26 from being caught. Such a stepped surface becomes the above-described smooth curved surface when the circumferences of the upper surfaces of a plurality of steps are connected, and functions as a tapered surface if the tip of the outer cylindrical portion 26 can move smoothly.

  FIG. 4 is a perspective view showing the shape of the lid 2 shown in FIG. FIG. 5 is a cross-sectional view of the lid 2 in FIG. FIG. 5 shows a BB cross section parallel to the central axis of the lid 2.

  As shown in FIGS. 4 and 5, the lid 2 is formed in a cylindrical shape having an opening 2a only at one end and a top surface at the other end. The lid 2 has a cylindrical portion 25 and an outer cylindrical portion 26, and the outer cylindrical portion 26 extends from the top surface of the cylindrical portion 25 to the opening side along the outer peripheral surface of the cylindrical portion 25. As shown in FIG. 5, the outer cylindrical portion 26 is formed longer in the axial direction than the cylindrical portion 25. The outer cylinder part 26 has the opening end 26a arrange | positioned in the position which faces the taper surface 14 in a fastening state. The outer cylinder part 26 is an example of a flexible outer cylinder part. The outer cylinder part 26 is formed so that flexibility is higher in the vicinity of the opening end 26a than in the vicinity of the top surface. In the first embodiment, the outer cylinder portion 26 is formed thinner near the opening end 26a than near the top surface. In the first embodiment, the cylindrical portion 25 and the outer cylindrical portion 26 are formed as one member. However, they may be formed as separate members and connected to each other.

  A plurality of ridges 21 are formed on the inner peripheral surface of the cylindrical portion 25 at positions where the ridges 11 and 12 come into contact with each other in the fastened state. The ridge 21 is an example of a second guide part. The ridge 21 advances along the inclination of any of the ridges 11, 12, and 21 when the container body 1 and the lid 2 are fastened together, and the container body 1 and the lid 2 are relatively rotated and axially moved. The rib 13 and the rib 22 are fitted to each other, and when the container body 1 and the lid 2 in the fastened state are separated from each other, the ribs 13, 12, and 21 are moved along the inclination of the ridges 11, 12, and 21. Then, the container body 1 and the lid 2 are rotated in the reverse direction relatively and advanced in the reverse direction along the axial direction to release the fitting between the rib 13 and the rib 22.

  In the first embodiment, the ridge 21 has a lead angle that is the same as one of the lead angle of the ridge 11 and the lead angle of the ridge 12, or a lead angle that is intermediate between the two. It is inclined on the circumferential surface and formed linearly, that is, in a substantially spiral shape. The ridge 21 is a multiple thread (female thread side). Further, the length of the ridges 21 is determined so as to be within an angle range of about 180 degrees or less, preferably about 15 to 45 degrees (more preferably about 30 degrees) about the central axis. That is, the protruding line 21 has a length that is half or less of the entire circumference in the circumferential direction.

  FIG. 6 is a development view showing the shape of the ridges 21 in FIGS. 4 and 5. FIG. 6 shows the shape of the ridge 21 when the inner peripheral surface of the lid 2 is developed on a plane.

  The lead angle A3 of the ridges 21 is an arrangement angle of the ridges 21 and is an angle on the inner peripheral surface from a plane perpendicular to the central axis of the cylindrical shape. The ridges 21 have side surfaces 21 a and 21 b as contact surfaces with respect to the ridges 11 and 12. In this Embodiment 1, the protruding item | line 21 is extended in the clockwise direction toward the upper surface from the opening part 2a side. In the first embodiment, the lead angle A3 of the ridge 21 is constant at any location of the ridge 21. The width W of the ridges 21 (that is, the interval between the side surfaces 21a and 21b) is designed to be wider than the minimum value D2 of the interval between the ridges 11 and the ridges 12 and smaller than the maximum value D1. 4 and 6, only one ridge 21 is drawn, but actually, the same number (four in this embodiment) of ridges 21 as the number of pairs of the ridges 11 and 12 is actually provided. They are arranged on the inner peripheral surface.

  Further, on the inner peripheral surface of the cylindrical portion 25, ribs 22 are formed at locations closer to the opening 2 a than the arrangement of the ridges 21. In the first embodiment, the rib 22 is a ring-shaped circumferential rib perpendicular to the central axis, and is a ridge having a curved surface. The rib 22 is caught by the rib 13 and locked at the time of fastening.

  In addition, a ring-shaped and tapered ridge 23 is formed on the top surface 2 b of the lid 2. The ridges 23 are formed at locations where the container body 1 and the lid 2 abut each other. In this Embodiment 1, the protrusion 2 is provided in the lid | cover 2, and the front-end | tip of the container main body 1 contact | abuts to the protrusion 23 at the time of fastening. In a state in which the rib 13 and the rib 22 are fitted to each other, the cylindrical tip of the container body 1 is in pressure contact with the ridge 23 of the lid.

  In addition, an inner ring 24 extending substantially perpendicularly from the top surface 2b is formed on the top surface 2b of the lid 2. In a state where the ribs 13 and the ribs 22 are engaged with each other, the inner ring 24 comes into contact with the inner peripheral surface 1b of the container body 1 and is elastically deformed to be in close contact. The outer peripheral surface 24 a of the inner ring 24 is slightly tapered, and is designed so that the cylindrical tip of the container body 1 is advanced to the root of the inner ring 24 while contacting the inner ring 24.

  Next, fastening and fastening release between the container body 1 and the lid 2 will be described.

  The container main body 1 and the lid 2 reach the fastening state through the fastening start process, and return to the detached state through the fastening release process.

  The fastening start process is performed by (a1) the operator pressing one of the container body 1 and the lid 2 against the other, or (a2) rotating one of the container body 1 and the lid 2 relative to the other. .

  In the fastening release process, (b1) the operator grips the vicinity of the tip of the outer cylinder portion 26 of the lid 2 or (b2) one of the container body 1 and the lid 2 is made relative to the other in the direction opposite to the fastening start process. It is done by rotating it automatically.

  First, (a) a fastening start process will be described, and then (b) a fastening release process will be described.

(A) Fastening start process

  FIGS. 7A to 7E are diagrams showing the positional relationship between the ridges 12 of the container body 1 and the ridges 21 of the lid 2 in Embodiment 1 in the fastening start process.

  An operator puts the tip of the container body 1 into the opening 2 a of the lid 2.

  When the tip of the container body 1 advances inside the cylindrical portion 25 of the lid 2, the ridges 11 and 12 of the container body 1 and the ridges 21 of the lid 2 approach each other (FIG. 7A), and the projection of the container body 1. The ridges 21 of the lid 2 come into contact with the ridges 12 (FIG. 7B).

  From this state, one of the container body 1 and the lid 2 is pressed against the other, or one of the container body 1 and the lid 2 is rotated relative to the other.

  Thereby, the ridge 21 of the lid 2 advances along the ridge 11 or the ridge 12 of the container body 1. At this time, the tip of the container body 1 advances inside the lid 2, and the lid 2 rotates relative to the container body 1 about the central axis. And the protruding item | line 21 of the lid | cover 2 contacts both the protruding item | line 11 and 12 of the container main body 1 (FIG.7 (C)).

  After the ridges 21 of the lid 2 come into contact with the ridges 11 and 12 of the container body 1, when the tip of the container body 1 further advances inside the lid 2, at least one of the container body 1 and the lid 2 is elastically deformed. Meanwhile, the ridges 21 of the lid 2 travel between the ridges 11 and 12 of the container body 1 (FIG. 7D). At this time, since the space between the ridges 11 and the ridges 12 of the container body 1 is gradually narrowed, elastic deformation increases as the tip of the container body 1 advances inside the lid 2. In this way, the ridges 21 are sandwiched between the ridges 11 and 12 in a wedge shape.

  Further, during the period (FIGS. 7C and 7D) in which the ridges 21 of the lid 2 proceed while contacting between the ridges 11 and the ridges 12 of the container body 1, the ribs 22 of the lid 2 are provided. Gets over the rib 13 of the container body 1. At this time, since the surfaces of the rib 22 and the rib 13 are curved surfaces, the rib 22 and the rib 13 are elastically deformed while being in line contact. When the tip of the rib 22 exceeds the tip of the rib 13, the rib 22 is caught by the rib 13, and the cylindrical tip of the container body 1 is connected to the ridges 23 and the inner ring 24 of the top surface 2 b of the lid 2. Abut. At this time, since the ridges 23 and the inner ring 24 on the top surface 2b are elastically deformed moderately, the tip portion of the container body 1 is in close contact with the ridges 23 and the inner ring 24 on the top surface 2b. Thereby, a fastening location will be in a sealed state. Further, when the tip of the rib 22 exceeds the tip of the rib 13, the resistance to the compressive force by the worker is immediately reduced, so that a click feeling is given to the worker. From this click feeling, the operator can know the completion of the fastening start process.

  FIG. 8 is a cross-sectional view showing a state in which the container body 1 and the lid 2 in the first embodiment are fastened. As shown in FIG. 8, the tip of the container body 1 is fixed in a state of being pressed against the top surface 2 b of the lid 2 by fitting with the ribs 13 and 22 (and press-fitting with the ridges 11, 12, and 21). For this reason, the high airtightness in the fastening location of the container main body 1 and the lid | cover 2 is ensured. Further, the distal end of the outer cylindrical portion 26 of the lid 2 is disposed at a position facing the tapered surface 14 (the outer peripheral side) of the container body 1. At this time, the distal end of the outer cylindrical portion 26 may be in contact with the tapered surface 14 or may be separated from the tapered surface 14.

  Thus, in the fastening start step, (a1) the operator presses one of the container body 1 and the lid 2 against the other, and (a2) one of the container body 1 and the lid 2 rotates relative to the other. In any of the operations, the container body 1 and the lid 2 are fastened while ensuring high airtightness.

(B) Fastening release process

  First, (b1) a fastening release process by an operation in which the operator grips the vicinity of the tip (opening end 26a) of the outer cylindrical portion 26 of the lid 2 will be described.

  An operator picks the vicinity of the tip of the outer cylinder portion 26 of the lid 2. Thereby, the outer cylinder part 26 bends, and the opening end 26a in the vicinity of the portion of the outer cylinder part 26 pushed into the inner peripheral side by the operator advances along the tapered surface 14 while contacting the tapered surface 14.

  FIG. 9 is a cross-sectional view showing the container body 1 and the lid 2 in the first embodiment in the fastening release process. As shown in FIG. 9, the opening end 26 a advances along the tapered surface 14, so that the entire lid 2 is urged upward (in the direction of detachment from the container body 1). The fitting by the ribs 13 and 22 is released while the strip 21 proceeds along the convex strip 11 of the container body 1. At this time, since the ridges 21 of the lid 2 travel along the ridges 11 of the container body 1, the lid 2 travels in the detaching direction while rotating relative to the container body 1.

  At this time, even if the operator vigorously grips the vicinity of the tip of the outer cylinder portion 26, the ridges 21 of the lid 2 come into contact with the ridges 11 of the container body 1, so that the lid 2 is difficult to jump out.

  When the fitting of the ribs 13 and 22 (and the press-fitting of the ridges 11, 12, and 21) is released in this way, the fastening between the container body 1 and the lid 2 is released. The lid 2 can be pulled away from the main body 1 immediately.

  Next, a fastening release step by an operation of rotating one of the container body 1 and the lid 2 relative to the other in the direction opposite to the (b2) fastening start step will be described.

  An operator twists the fastening portion of the container body 1 and the lid 2. That is, the rotational force in the circumferential direction from the ridge 12 to the ridge 11 of the pair of ridges 11 and 12 is applied to the container body 1, and at the same time, the rotation force in the opposite direction is applied to the lid 2. Added.

  Thereby, the protruding item | line 21 of the lid | cover 2 is pressed against the protruding item | line 12 of the container main body 1, and the protruding item | line 21 retreats along the protruding item | line 12, reducing elastic deformation. At this time, the lid 2 moves backward in the central axis direction while rotating. In a state where the ridges 21 of the lid 2 are in contact with both the ridges 11 and the ridges 12 of the container body 1, the elastic deformation continues, but the deformation amount decreases. The state changes from the state of FIG. 7D to the state of FIG. During the period in which the elastic deformation decreases, the rib 22 of the lid 2 gets over the rib 13 of the container body 1.

  After the fitting of the ribs 13 and 22 (and the press-fitting of the ridges 11, 12, and 21) is released, the container body 1 and the lid 2 are pulled apart along the central axis so that they are completely separated.

  Thus, in the fastening release step, (b1) the operator grips the vicinity of the tip of the outer tube portion 26 of the lid 2, and (b2) one of the container body 1 and the lid 2 in the opposite direction to the fastening start step. In any of the operations for rotating the container relative to the other, the fastening of the container main body 1 and the lid 2 that secures high airtightness is released.

  As described above, according to the first embodiment, the container body 1 includes (a) the outer peripheral surface, and (b) the tapered surface 14 that is a part of the outer peripheral surface and is inclined in the radial direction of the container main body 1. (C) a rib 13 formed in the circumferential direction of the outer peripheral surface; and (d) a first guide portion formed by a plurality of ridges 11 and 12 arranged in the circumferential direction on the outer peripheral surface and inclined from the axial direction; Is provided. Further, the lid 2 is formed in the circumferential direction of the inner peripheral surface of the cylindrical portion 25 (e) the cylindrical portion 25 into which the end portion of the container main body 1 is inserted, and the container main body 1 and the lid 2 are fastened to each other. A rib 22 that fits into the rib 13 when being moved, and (g) an opening end that extends from the cylindrical portion 25 along the outer peripheral surface of the cylindrical portion 25 and is disposed at a position facing the tapered surface 14 in the fastening state. The flexible outer cylinder part 26 which has 26a, and the 2nd guide part formed as the some protruding item | line 21 in the position which contacts a 1st guide part in a fastening state on the inner peripheral surface (h). The second guide portion advances along the inclination of the first guide portion or the second guide portion when the container main body 1 and the lid 2 are fastened to each other, and rotates the container main body 1 and the lid 2 relative to each other and has a shaft. When the rib 13 and the rib 22 are fitted to each other and the fastened container body 1 and the lid 2 are separated from each other, the first guide portion or the second guide portion is moved along the inclination. Then, the container body 1 and the lid 2 are relatively rotated and moved along the axial direction to release the fitting between the rib 13 and the rib 22.

  Thereby, the operation at the time of fastening and the release of fastening becomes easy for many people. Specifically, the first guide portion and the second guide portion perform fastening and fastening release by the same operation as that of the screw method in addition to the operation at the time of fastening and fastening release by the undercut fitting method. be able to. In the case of the screw method, it is easier for a person with weak hand strength to perform fastening and fastening release than the above-described operations at fastening and fastening release. Moreover, since the 1st guide part and the 2nd guide part mutually contact at the time of fastening cancellation | release, a lid | cover is difficult to fly off.

Embodiment 2. FIG.

  The fastening structure according to Embodiment 2 of the present invention is such that the tip of the ridge 21 of the lid 2 is curved. FIG. 10 is a development view showing an example of the ridges 11 and 12 of the container body 1 and the ridges 21 of the lid 2 according to the second embodiment. As shown in FIG. 10, the tip of the ridge 21 on the opening 2a side is a curved surface. Thereby, in the fastening start process, the ridges 21 can easily enter between the ridges 11 and the ridges 12. In addition, since it is the same as that of Embodiment 1 about the other structure in the fastening structure which concerns on Embodiment 2, and a fastening start process and a fastening cancellation | release process, the description is abbreviate | omitted.

Embodiment 3 FIG.

  The fastening structure according to Embodiment 3 of the present invention is provided with two ridges instead of one ridge 21 in the lid 2. FIG. 11 is a development view showing an example of a set of ridges 11 and 12 of the container body 1 and a set of ridges 31a and 31b of the lid 2 according to the third embodiment. In the third embodiment, as shown in FIG. 11, protrusions 31 a and 31 b are formed on the inner peripheral surface of the lid 2. The ridges 31a and 31b have the same shape and the same lead angle A3. The ridge 31 a has a side surface 32 a as a contact surface with the ridge 11, and the ridge 31 b has a side surface 32 b as a contact surface with the ridge 12. The width W (that is, the interval between the side surfaces 32a and 32b) of the pair of ridges 31a and 31b is wider than the aforementioned minimum interval D2 and smaller than the aforementioned maximum interval D1. Moreover, the front-end | tip at the side of the opening part 2a of the protruding lines 31a and 31b is made into a curved surface. At the time of fastening, the ridges 31 b are in contact with the ridges 12, and the ridges 31 a are in contact with the ridges 11. In addition, since it is the same as that of Embodiment 1 about the other structure in the fastening structure which concerns on Embodiment 3, and a fastening start process and a fastening cancellation | release process, the description is abbreviate | omitted.

Embodiment 4 FIG.

  The fastening structure according to Embodiment 4 of the present invention is such that a plurality of ridges having the same shape and parallel shape are provided on the lid 2 at equal intervals. FIG. 12 is a development view showing an example of the ridges 11 and 12 of the container body 1 and the ridge 31 of the lid 2 according to the fourth embodiment. In the fourth embodiment, a plurality of ridges 31 are formed on the inner peripheral surface of the lid 2 in parallel with the same shape at equal intervals. The plurality of ridges 31 are arranged in a ring shape on the inner peripheral surface of the lid 2. In addition, the gap | interval of the adjacent two protruding item | line 31 has the width | variety which can be inserted without the protruding item | line 11 or the protruding item | line 12 interfering at the time of fastening. One ridge 31 has the same shape as the ridges 31a and 31b in the third embodiment.

  In the fastening start step, two ridges 31 of the arranged ridges 31 enter between a pair of ridges 11 and 12, and one of the two ridges 31 contacts the ridge 11. The other contacts the ridge 12. Then, the two ridges 31 are press-fitted into the ridges 11 and 12 in a wedge shape. FIG. 13 is a diagram illustrating press-fitting of the ridges 31 of the lid 2 into the set of ridges 11 and 12 of the container body 1 according to the fourth embodiment. Since the ridges 31 not involved in the press-fitting are inserted into the gap between the ridges 11 and the ridges 12 not involved in the press-fitting, the ridges 31 not involved in the press-fitting do not interfere with the ridges 11 and 12.

  In addition, since it is the same as that of Embodiment 1 about the other structure in the fastening structure which concerns on Embodiment 4, a fastening start process, and a fastening cancellation | release process, the description is abbreviate | omitted.

Embodiment 5 FIG.

  FIG. 14 is a perspective view showing a container body and a lid having a fastening structure according to Embodiment 5 of the present invention. In the fifth embodiment, as in the first to fourth embodiments, the two members of the container main body 1 and the lid 2 are fastened or unfastened. The container body 1 and the lid 2 can be repeatedly attached and detached. In FIG. 14, only the connection portion with the lid 2 is illustrated in the container 1 main body.

  The shape of lid 2 in the fifth embodiment is the same as the shape of lid 2 in any of the first to fourth embodiments. The container body 1 and the lid 2 in the fifth embodiment can be manufactured by the same material and manufacturing method as in any of the first to fourth embodiments.

  FIG. 15 is a cross-sectional view of the container body 1 in FIG. FIG. 15 shows an AA cross section parallel to the central axis of the container body 1 in FIG.

  As shown in FIGS. 14 and 15, the container main body 1 has the same ridges 11 and ridges 12 as those in any of the first to fourth embodiments.

  The container body 1 in the fifth embodiment has ribs 101 that are different from the ribs 13 in the first embodiment. In Embodiment 5, the rib 101 is formed in the outer peripheral surface of the container main body 1 in the location farther from the opening 1a than the arrangement of the ridges 11 and 12. In the fifth embodiment, the four ribs 101 are formed at symmetrical positions around the central axis along a circumference perpendicular to the central axis. The rib 101 is intermittently formed along the circumference. Each rib 101 is a ridge having a curved surface. In the fifth embodiment, the cross section of the rib 101 that is perpendicular to the outer peripheral surface and parallel to the central axis is a substantially semicircle.

  Each rib 101 is formed on the cantilever 102, and a gap 103 is formed around the cantilever 102. The cantilever beam 102 is formed in parallel with the central axis so as not to protrude from the outer peripheral surface of the container body 1. Further, the end of the cantilever 102 on the opening 1a side is fixed. The gap 103 is formed independently from the inner space surrounded by the container body 1, and does not impair the airtightness when the container body 1 and the lid 2 are fastened.

  In the fifth embodiment, a rib 101 is formed outside the tip portion of the cantilever 102. Thereby, when the rib 22 of the lid 2 comes into contact with the rib 101, the cantilever beam 102 bends toward the inside of the container body 1, and the rib 22 of the lid 2 easily gets over the rib 101 of the container body 1. In addition, after the rib 22 of the lid 2 gets over the rib 101 of the container main body 1, the rib 101 is restored to the outer side of the container main body 1 by the elastic restoring force of the cantilever 102, and the contact with the rib 22 is maintained. Since a sufficient gap 103 is provided around the rib 101, the tip of the cantilever 102 is difficult to contact the wall surface of the container body 1 even if the cantilever 102 is bent.

  In addition, since (a) fastening start process and (b) fastening cancellation | release process in Embodiment 5 are the same as that of any of Embodiment 1-4, the description is abbreviate | omitted. However, the rib 101 of the container body 1 functions instead of the rib 13 in the first to fourth embodiments.

  As described above, according to the fifth embodiment, the same effect as in any of the first to fourth embodiments can be obtained, the rib 101 is provided intermittently, and the cantilever 102 is provided. Since it is formed, it is possible to reduce the compression force and the rotational force necessary for the fastening start process and the fastening release process. Thereby, a stronger click feeling and / or click sound can be given to the operator.

Embodiment 6 FIG.

  FIG. 16 is a perspective view showing a container body and a lid having a fastening structure according to Embodiment 6 of the present invention.

  The container body 1 in the sixth embodiment has ribs 201 between the ribs 101 and 101. The ribs 201 are respectively provided at two positions symmetrical with respect to the central axis of the container body 1. The rib 201 and the rib 101 exist on the same circumference. The height of the rib 201 from the outer peripheral surface of the container body 1 is the same as the height of the rib 101. Thereby, since the location which contacts the rib 22 of the lid | cover 2 increases by adding the rib 201, and supports the rib 22 equally in the circumferential direction, a fastening location is hard to be distorted after fastening completion.

  FIG. 17 is a partial cross-sectional view showing container body 1 and lid 2 having a fastening structure according to Embodiment 6 of the present invention. In the sixth embodiment, a ventilation groove 221 is formed on the inner peripheral surface of the container body 1 at a location where the inner ring 24 abuts in the process of locking the container body 1 and the lid 2 with each other. FIG. 18 is a perspective view showing the ventilation groove 221 in FIG. FIG. 19 is an enlarged view of the ventilation groove 221 in FIG. In this embodiment, the ventilation groove 221 is a space on a semi-cylinder. The ventilation groove 221 is formed in three places at the same height at intervals of 120 degrees. The inner peripheral surface of the tip of the container body 1 is tapered to a predetermined height, and the ventilation groove 221 is formed in the vicinity of the predetermined height, and the upper end of the ventilation groove 221 is above the end of the taper. Thus, the lower end of the ventilation groove 221 is below the end of the taper. The height (distance between the upper end and the lower end) of the ventilation groove 221 is, for example, the height (distance between the lower end and the upper end) of the portion where the inner ring 24 is in contact with the inner peripheral surface of the container body 1 in the fastened state. About half. The shape of the ventilation groove 221 is not limited to this, and may be another shape that can perform the same function, such as cutting.

  FIG. 20 is a cross-sectional view showing a fastening process in the fastening structure according to the sixth embodiment. In the fastening start process, the lid 2 is pushed into the container body 1 while the inner ring 24 of the lid 2 is in contact with the inner peripheral surface of the container body 1. The diameter of the inner ring 24 is slightly larger than the diameter of the inner peripheral surface. When the lid 2 is pushed into the container main body 1, the inner ring 24 and / or the inner wall of the container main body 1 are elastically deformed, and the two come into close contact with each other. . Therefore, if the molding accuracy of the inner ring 24 and the inner peripheral surface of the container body 1 is good, the inside air does not escape to the outside, the inside air pressure rises, and a large force is required to push the lid 2 into the container body 1. . On the other hand, in order to improve the airtightness in the fastened state, it is necessary to increase the molding accuracy of the inner ring 24 and the inner peripheral surface of the container body 1. In this embodiment, as shown in FIG. 20A, since the inside air escapes through the ventilation groove 221 until the middle of the fastening start process, the internal pressure does not increase, and the fastening start process has progressed to some extent. As shown in FIG. 20B, the inner ring 24 closes the ventilation groove 221. When the inner ring 24 closes the ventilation groove 221, the inside air does not escape to the outside. When the fastening start process is completed, the inner ring 24 closes the ventilation groove 221 and comes into close contact with the inner wall of the container body 1. Thereby, in the fastening start process, since an increase in the internal pressure is suppressed, the operability is improved and airtightness is ensured as in the fifth embodiment.

  The shapes of the container main body 1 and the lid 2 in the fifth embodiment other than those described above are the same as the shapes of the container main body 1 and the lid 2 in any of the first to fifth embodiments. The container body 1 and the lid 2 in the sixth embodiment can be manufactured by the same material and manufacturing method as in any of the first to fifth embodiments.

  As described above, according to the sixth embodiment, the same effect as any of the first to fourth embodiments can be obtained, and in the fastening start process, the operability is improved and the internal pressure is increased. Airtightness can be ensured after completion of fastening while preventing the fastening from becoming difficult.

Embodiment 7 FIG.

  FIG. 21 is a perspective view showing a container body and a lid having a fastening structure according to Embodiment 7 of the present invention.

  In the seventh embodiment, the container main body 1 further includes a third guide portion, and the lid 2 further includes a fourth guide portion.

  FIG. 22 is a front view showing the recess 301 in the container body 1 shown in FIG. In the seventh embodiment, the third guide portion is formed as a plurality of recesses 301 each having a guide surface 301a, and the guide surface 301a is a flat surface that is inclined in the radial direction of the container body 1, and is in a fastening state. It is formed at a position where the fourth guide portion faces.

  In the seventh embodiment, the concave portion 301 has guide surfaces 301a at all angular positions (angular positions around the central axis) where the fourth guide portion can be arranged in the fastened state. That is, regardless of the relative angle at the start of the fastening start process of the container body 1 and the lid 2, the fourth guide portion (a convex portion 302 described later) faces the guide surface 301a. In addition, those angular positions can be specified from the positional relationship when the lid 2 is fixed to the container body 1 by the engagement of the ridges 11, 12, 21 and the fitting of the ribs 13, 22.

  FIG. 23 is a cross-sectional view showing the convex portion 302 in the lid 2 shown in FIG. 24 is a cross-sectional view showing the shape of the convex portion 302 in the lid 2 shown in FIG. FIG. 24 shows a CC cross section perpendicular to the central axis of the lid 2 in FIG. In the seventh embodiment, the fourth guide portion is a plurality of convex portions 302 that protrude toward the inner peripheral side on the inner peripheral surface in the vicinity of the opening end 26 a of the outer cylindrical portion 26. A mark indicating the presence of the convex portion 302 may be provided on the outer peripheral surface at the angular position where each convex portion 302 is formed. The mark is a protrusion, a concave portion, printing, or the like.

  The plurality of concave portions 301 in the third guide portion are formed in pairs at positions facing each other on the circumference of the container body 1, and the plurality of convex portions 302 in the fourth guide portion are on the circumference of the lid 2. Are formed in pairs at opposing positions. For example, at least a pair of two convex portions 302 are formed at positions facing each other about the central axis, and the convex strips 31 are arranged at equal intervals on the lid 2 as shown in FIG. When it is possible to mesh with each other at 16 positions in increments, the recesses 301 are formed in increments of 22.5 degrees at the same number of 16 positions as the meshing angular positions.

  The other configurations of the container body 1 and the lid 2 in the seventh embodiment are the same as those in the fifth embodiment. In addition, the third guide portion and the fourth guide portion in the seventh embodiment can be applied to other embodiments.

  Next, fastening and fastening release between the container body 1 and the lid 2 will be described.

  FIG. 25 is a top view showing a positional relationship between the concave portion 301 of the container body 1 and the convex portion 302 of the lid 2 in the fastening state and the fastening releasing step in the seventh embodiment.

  In the seventh embodiment, when the container main body 1 and the lid 2 are fastened by the fastening start process, the tip of the convex portion 302 of the lid 2 (the portion in the vicinity of the opening end 26 a) is a guide in the concave portion 301 of the container main body 1. It is arranged at a position facing the surface 301a. At this time, the convex part 302 may contact the guide surface 301a or may be separated. Note that the surface of the recess 301 that faces the guide surface is also inclined so that the convex portion 302 does not contact the tapered surface 14.

  In the fastened state, as shown by a broken line in FIG. 25, the convex portion 302 is located near the outer peripheral end of the guide surface 301a.

  Then, when the outer cylinder portion 26 is left in the fastening release process, the outer cylinder portion 26 is elastically deformed, and the opening end 26a of the outer cylinder portion 26 slides on the tapered surface 14, and FIG. As shown, the convex portion 302 moves along the guide surface 301a while contacting the guide surface 301a. Thereby, a relative rotational force is generated between the container body 1 and the lid 2 also by the concave portion 301 and the convex portion 302. Since this rotational force is generated at the operation location of the outer cylinder portion 26, it is easy for the operator to release the fastening.

  As described above, according to the seventh embodiment, the container body 1 includes the third guide part, and the lid 2 includes the fourth guide part. And the 4th guide part is a plurality of convex parts 302 projected to the inner peripheral side in the inner peripheral surface near the opening end 26a of outer cylinder part 26. The third guide portion is formed as a plurality of concave portions 301 each having a guide surface 301a. The guide surface 301a is inclined in the radial direction of the first member, and in the fastened state, the fourth guide portion (the convex portion 302). ).

  Thereby, when an operation of gripping the vicinity of the distal end of the outer cylinder portion for releasing the fastening is performed, the fourth guide portion moves along the guide surface 301a of the third guide portion, and a rotational force is generated. It becomes easier to release the fastening.

  Moreover, according to the said Embodiment 7, the 3rd guide part has the guide surface 301a in all the angular positions where a 4th guide part can be arrange | positioned in a fastening state. Thereby, when fastening the container main body 1 and the lid | cover 2, it can fasten even if both do not match a specific angle position.

  Further, according to the seventh embodiment, the plurality of concave portions 301 in the third guide portion are formed in pairs at positions facing each other on the circumference of the container body 1, and the plurality of concave portions 301 in the fourth guide portion are formed. The convex portions 302 are formed in pairs at positions facing each other on the circumference of the lid 2. Thereby, when the vicinity of the tip of the outer cylinder part is picked with one hand for releasing the fastening, the fastening is easily released.

  Each embodiment described above is a preferred example of the present invention, but the present invention is not limited to these, and various modifications and changes can be made without departing from the scope of the present invention. It is.

  For example, in Embodiments 1 to 7, the ridges 11 and 12 may be formed on the lid 2, and the ridges 21, 31, 31 a and 31 b may be provided on the container body 1.

  In the first to seventh embodiments, the container 1 may be a cylindrical tube. The lid 2 may be a cylindrical tube. In that case, what is necessary is just to delete the top | upper surface 2b inside the inner ring 24, and make the top | upper surface 2b ring shape.

  In the first to fourth embodiments, the rib 13 or the rib 22 may be a rib other than the circumferential rib. For example, the ribs 13 may be formed intermittently along the circumference. Further, the ribs 22 may be formed intermittently along the circumference. Further, grooves (concave portions) may be provided instead of the ribs 13 or the ribs 22. Alternatively, a ring-shaped step may be provided in the container 1 instead of the rib 13 and the rib 22 may be hooked on the step. Further, the surfaces of the ribs 13 and the ribs 22 may be flat and the flat surfaces may be in contact with each other.

  In the first to seventh embodiments, the lead angles of the ridges 11, 12, 21, 31, 31a, and 31b may not be constant.

  In the fifth to seventh embodiments, the rib 101 is formed on the cantilever 102, but instead of the cantilever 102, a double-supported beam is formed and the rib 101 is formed on the double-supported beam. You may do it. In Embodiment 5, the rib of the container 1 is provided on the beam, but the rib of the lid 2 may be provided on the beam.

  In the fifth to seventh embodiments, four ribs 101 are formed. However, for example, two ribs 101 or eight ribs may be used, and the number of ribs 101 is not limited to four. Even in those cases, the rib 101 is preferably formed at a symmetrical position with the central axis as the center.

  In the first to seventh embodiments, the convex strips 11, 12, and 21 that are multi-threaded screws as the first and second guide portions may all have the same lead angle. In that case, the ridges 21, 31, 31a, 31b are not sandwiched between the ridges 11, 12 as shown in FIG. 7 (C) and FIG. 7 (D). Moreover, in Embodiment 1-7, the protruding item | line 11,12 or the protruding item | line 21 is good also as a concave item. In that case, the ridge and the groove may have the same lead angle.

  Moreover, in Embodiment 1-7, instead of the convex strips 11 and 12 of the container main body 1, the same convex strip is formed in the inner peripheral surface of the lid | cover 2, and instead of the convex strip 21 of the lid | cover 2, the same You may make it form a protrusion on the outer peripheral surface of the container main body 1. FIG. Further, instead of the ridges 11 and 12, a recess having the same shape as the valley between the ridges 11 and 12 may be formed.

  Further, in the first to seventh embodiments, instead of the ridge (projection 21) guided between the two ridges (projections 11, 12), a projection (projection having the same width as the projection 21). May be formed). Further, instead of the ridges 21, ridges having the same shape as the valleys between the adjacent ridges 21 may be formed.

  In the seventh embodiment, the third guide part formed on the container body 1 is a concave part, but may be a convex part such as a convex line having a guide surface 301a. The convex portion is formed so as to protrude from the tapered surface 14.

  The present invention can be applied to fastening two members of various combinations such as a container and a lid, a container and a tube, a tube and a tube, a tube and a lid, a rod and a rod. In particular, it is applicable to two members that are repeatedly attached and detached.

1 Container body (example of first member)
2 Lid (example of second member)
11, 12 ridges (an example of a first guide part, an example of a convex part)
13, 101, 201 Rib (example of first fitting portion)
14 taper surface 21 ridge (an example of a 2nd guide part)
21a, 31b, 32a, 32b Side surface (example of contact surface)
22 ribs (example of second fitting portion)
25 cylindrical part 26 outer cylinder part 31, 31a, 31b ridge (an example of a 2nd guide part, an example of a convex part)
301 Concave portion (an example of a third guide portion)
301a Guide surface 302 Convex part (an example of a fourth guide part)

Claims (11)

In the fastening structure in which the first member and the second member are fastened together with rotation about the central axis and the fastened first member and the second member are separated from each other,
The first member is
An outer peripheral surface,
A tapered surface that is a part of the outer peripheral surface and is inclined in the radial direction of the first member;
A first fitting portion formed in the circumferential direction of the outer peripheral surface at any one of a convex line, a concave line and a step;
A first guide portion formed of a plurality of ridges or recesses arranged in the circumferential direction on the outer peripheral surface and inclined from the axial direction;
The second member is
A cylindrical portion into which an end of the first member is inserted;
It is formed in the circumferential direction of the inner peripheral surface of the cylindrical part by any one of a convex line, a concave line and a step, and is fitted to the first fitting part when the first member and the second member are fastened to each other. A second fitting portion;
A flexible outer tube portion extending from the cylindrical portion along the outer peripheral surface of the cylindrical portion and having an open end disposed at a position facing the tapered surface in the fastening state;
On the inner peripheral surface, the first guide portion is formed by a convex portion or a concave strip at a position in contact with the first guide portion in the fastened state, and the first member and the second member are fastened to each other. The first member and the second member are rotated relative to each other and are moved along the axial direction to fit the first fitting portion and the second fitting portion. And when the first member and the second member in the fastened state are separated from each other, the first member and the second member rotate relative to each other and move along the inclination of the first guide portion. A second guide part that advances along the direction and releases the fitting between the first fitting part and the second fitting part ;
When the first member and the second member in the fastened state are separated from each other, the opening end moves along the tapered surface, so that the second member is attached in the direction of separation from the first member. The second fitting portion of the second member is advanced along the first guide portion of the first member, and the fitting between the first fitting portion and the second fitting portion is released. What you can do,
Fastening structure characterized by In the fastening structure in which the first member and the second member are fastened together with rotation about the central axis and the fastened first member and the second member are separated from each other,
The first member is
An outer peripheral surface,
A tapered surface that is a part of the outer peripheral surface and is inclined in the radial direction of the first member;
A first fitting portion formed in the circumferential direction of the outer peripheral surface at any one of a convex line, a concave line and a step;
A first guide portion formed of a plurality of convex portions or concave stripes arranged in the circumferential direction on the outer peripheral surface;
The second member is
A cylindrical portion into which an end of the first member is inserted;
It is formed in the circumferential direction of the inner peripheral surface of the cylindrical part by any one of a convex line, a concave line and a step, and is fitted to the first fitting part when the first member and the second member are fastened to each other. A second fitting portion;
A flexible outer tube portion extending from the cylindrical portion along the outer peripheral surface of the cylindrical portion and having an open end disposed at a position facing the tapered surface in the fastening state;
On the inner peripheral surface, a plurality of ridges or ridges inclined from the axial direction are formed at positions that contact the first guide portion in the fastening state, and the first member and the second member are fastened together. When the first fitting portion and the second guide portion are moved along the inclination of the second guide portion, the first member and the second member are relatively rotated and moved along the axial direction. The first member and the second member are moved along the inclination of the second guide portion when the first member and the second member in the fastened state are separated from each other by fitting with the fitting portion. And a second guide portion that releases the fitting between the first fitting portion and the second fitting portion by rotating the shaft relatively and moving along the axial direction ,
When the first member and the second member in the fastened state are separated from each other, the opening end moves along the tapered surface, so that the second member is attached in the direction of separation from the first member. The second fitting portion of the second member is advanced along the first guide portion of the first member, and the fitting between the first fitting portion and the second fitting portion is released. What you can do,
Fastening structure characterized by   The fastening structure according to claim 1, wherein the first guide part and the second guide part are multi-threaded screws. One of the first guide part and the second guide part has a first lead angle ridge and a second lead angle ridge,
The first lead angle and the second lead angle are different from each other,
The other of the first guide part and the second guide part is wider than the minimum distance between the first lead angle ridge and the second lead angle ridge and the second lead angle ridge and the second guide part. It has two contact surfaces at a distance narrower than the maximum distance between the lead angle ridges,
In the fastened state, one of the two contact surfaces is in contact with the first lead angle ridge, and the other of the two contact surfaces is in contact with the second lead angle ridge. The other tip portion of one guide portion and the second guide portion is sandwiched between the first lead angle projection and the second lead angle projection on the one, and elastically deformed;
The fastening structure according to claim 3. The first member includes a third guide portion, and the second member includes a fourth guide portion,
The fourth guide part is a plurality of convex parts protruding to the inner peripheral side on the inner peripheral surface in the vicinity of the opening end of the flexible outer cylinder part,
The third guide portion is formed as a plurality of convex portions or concave portions each having a guide surface, the guide surface is inclined in the radial direction of the first member, and the fourth guide portion is in the fastened state. Be formed in a facing position,
The fastening structure according to any one of claims 1 to 4, wherein:   The fastening structure according to claim 5, wherein the third guide portion has the guide surface at all angular positions where the fourth guide portion can be disposed in the fastening state. The plurality of convex portions or concave portions in the third guide portion are formed in pairs at positions facing each other on the circumference of the first member,
A plurality of convex portions in the fourth guide portion are formed in pairs at positions facing each other on the circumference of the second member;
The fastening structure according to claim 5 or 6, characterized in that.   The fastening structure according to claim 1, wherein each of the plurality of ridges or ridges of the first guide portion has a length equal to or less than one half of the entire circumference in the circumferential direction.   3. The fastening structure according to claim 2, wherein each of the plurality of ridges or ridges of the second guide portion has a length of ½ or less of the entire circumference in the circumferential direction.   The fastening structure according to any one of claims 3, 8, and 9, wherein the lead angle of the multi-thread screw is any angle from 15 degrees to 80 degrees. A container having the fastening structure according to any one of claims 1 to 10,
One of the first member and the second member is a lid,
The other of the first member and the second member is a container body;
A container characterized by.

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