JP4787084B2 - Container opening and closing device - Google Patents

Description

  The present invention relates to a container opening / closing device including a container main body and a lid body that freely closes an upper end opening of the container main body.

  A conventional container opening / closing device having a container body and a lid body that covers the upper end opening of the container body so as to be openable / closable is provided with a pair of body hinge pieces spaced apart from each other, and the lid body has a pair of body hinges. A pair of lid hinge pieces arranged between the pieces are provided apart from each other, a blind shaft-like body shaft hole is provided at the inner end of the body hinge piece, and a lid shaft hole penetrating the pair of lid hinge pieces is provided. A shaft pin having a length substantially equal to the total length of the main body shaft hole and the lid shaft hole, and a stopper piece fitted and fixed between the lid hinge pieces, the main body shaft hole and the lid shaft hole. The shaft pin inserted into the stopper is abutted against the stopper piece, and the outer end portion of the shaft pin is inserted and held in the body shaft hole, thereby supporting the lid body so that it can be opened and closed around the shaft pin. The shaft pin is assembled in the hinge shaft hole so that it cannot be pulled out, and the shaft pin and shaft hole are exposed to the outside. Appearance of the appearance of the container and so as not to have is that was set to be better (for example, Patent Document 1).

Further, in the conventional container opening and closing device, the container body is provided with a pair of first pivot parts spaced apart from each other, and the lid body is provided with a second pivot part disposed between the pair of first pivot parts, A pin hole is provided in the left and right ends of the pair of first pivot parts, and a concave pin hole is provided at both left and right ends of the second pivot part so as to communicate with the pin holes of the first pivot part. A pair of pivot pins are inserted across the pin hole of the first pivot part and the pin hole of the second pivot part, and the pivot pin is biased toward the pin hole of the second pivot part by a spring. Thus, there is one in which the upper lid is supported so as to be openable and closable around the pivot pin with respect to the lower lid (for example, Patent Document 2).
JP 2004-33289 A JP 2003-334112 A JP 2005-137536 A

  However, in the former conventional case, when assembling the container main body and the lid, each of the pair of shaft pins is inserted and held so as not to protrude outwardly into the lid shaft holes of the pair of lid hinge pieces, respectively. Fit a pair of lid hinge pieces between the pair of body hinge pieces, then fit the stopper pieces between the pair of lid hinge pieces, and press the pair of shaft pins outward in the left-right direction with the stopper pieces. Therefore, it is necessary to move the pair of shaft pins outward, and to insert the outer ends of the pair of shaft pins into the body shaft holes of the body hinge pieces, which makes the assembly work of the container body and the lid very troublesome. It was.

  In the latter conventional case, when assembling the container body and the lid, the second pivot part of the lid is fitted between the pair of first pivot parts of the container body, and then the pins of the pair of first pivot parts After inserting the pair of pivot pins from the outside of the pair of first pivot portions over the hole and the pin hole of the second pivot portion, and further inserting the spring into the pin holes of the pair of first pivot portions, The spring presser had to be fitted from the outside into the pin holes of the pair of first pivot parts, respectively, and the assembly of the container body and the lid was troublesome. In this case, since the pin hole penetrating the pair of first pivot portions of the container body is provided, the opening edge of the pin hole is exposed to the outside, and the spring presser is also exposed to the outside. Appearance was impaired.

  In view of the above-described problems, the present invention can easily assemble the container body and the lid and improve the appearance of the container.

The technical means of the present invention for solving this technical problem includes a container main body and a lid for closing the upper end opening of the container main body so as to be openable and closable, and a pair of support portions spaced apart from each other on one of the container main body and the lid A support convex portion disposed between the pair of support portions and a support shaft between the support convex portion and the pair of support portions, respectively. A container opening / closing device in which a lid is openable / closable around a pair of support shafts with respect to a main body,
At least one of the pair of support shafts is held by the support convex portion so as to be able to move out and retract toward the outer support portion, and the support shaft held so as to be movable in and out is attached outward. An elastic member is provided, and on the inner end side of at least one of the support portions, a fitting portion for fitting the outer end portion of the support shaft held so as to be movable in and out is provided .
The support convex part is provided with an opening that communicates with the holding hole, and the elastic member protrudes outward from the opening, and the elastic member biases the support shaft from the holding hole outward in the left-right direction. It is in the point made to stop doing .

Further, another technical means of the present invention is to operate the cover body in the opening direction using the biasing force of the elastic member between the support shaft and the fitting portion, and to close the cover body. A lid body opening / closing assisting means is provided that can operate or stop the lid body at an arbitrary opening / closing position.
In addition, another technical means of the present invention is a cam mechanism that operates between the support shaft and the fitting portion in a direction in which the lid is closed by the biasing force of the elastic member when the lid approaches the closed position. Is in the point provided.

According to another technical means of the present invention, when the lid approaches a predetermined open position between the support shaft and the fitting portion, the lid is operated in a direction to open by the biasing force of the elastic member. The cam mechanism is provided.
In addition, another technical means of the present invention is that a contact resistance is provided between the support shaft and the fitting portion so that the lid can be stopped at an arbitrary opening / closing position with respect to the container body. .

In addition, another technical means of the present invention includes a container body and a lid that covers the upper end opening of the container body so as to be openable and closable, and a pair of support portions spaced apart from each other is provided on one of the container body and the lid. The other of the container main body or the lid is provided with a support convex portion disposed between the pair of support portions, and a support shaft is provided between the support convex portion and the pair of support portions, respectively. A container opening and closing device in which the lid is openable and closable around a pair of support shafts,
At least one of the pair of support shafts is held by the support convex portion so as to be able to move out and retract toward the outer support portion, and the support shaft held so as to be movable in and out is attached outward. An elastic member is provided, and on the inner end side of at least one of the support portions, a fitting portion for fitting the outer end portion of the support shaft held so as to be movable in and out is provided.
The support convex portion is provided with a holding hole for holding the support shaft so as to be movable in and out, and a guide groove communicating with the holding hole is provided in the support shaft withdrawing and retracting direction. An engaging projection inserted into the guide groove is provided on the support shaft so that the shaft does not come out of the holding hole.

In this case, a locking projection for releasably locking the engagement protrusion is provided at the opening edge of the guide groove so as to restrict the protrusion movement of the support shaft in a state where the support shaft is retracted into the holding hole. You may be allowed to.
Further, a lock mechanism may be provided that locks the support shaft held so as to be able to move out and retract against the biasing of the elastic member so that the support shaft can be unlocked at the retracted position .

According to the present invention, when assembling the container main body and the lid body, the pair of support shafts are pressed inward in the left-right direction and the support convex portions are fitted between the pair of support portions of the container main body. Well, it is possible to easily assemble the container body and the lid.
Moreover, after the container body and the lid are assembled, the support shaft, the fitting portion, and the holding hole are not exposed to the outside, and the appearance of the container is very good.

  Hereinafter, the present invention will be described according to the illustrated embodiment. In FIGS. 1 and 2, reference numeral 1 denotes a container body of a compact container, which is made of a synthetic resin and includes a bottom wall 2, a front wall 3, a rear wall 4, and a pair of left and right side walls 5. Are formed in a box shape having an upper end opened. A pair of left and right support portions 6 project from the rear wall 4 of the container body 1. In the present embodiment, the container body 1 is provided with two storage recesses 8 and 9 whose upper ends are open.

Reference numeral 11 denotes a lid that closes the upper end opening of the container body 1 and is made of synthetic resin. A support convex portion 12 protrudes from the rear end portion of the lid body 11. The support convex portion 12 is fitted between the pair of support portions 6.
A holding hole 13 is provided in the support convex portion 12 in a penetrating manner in the left-right direction. A concave fitting portion 15 is provided in the left-right direction corresponding to the holding hole 13 on the inner end side of the pair of support portions 6. The holding hole 13 is formed in a square hole shape penetrating left and right, and the fitting portion 15 is formed in a concave shape of a round hole.

  A pair of support shafts 17 are held on both left and right sides of the support convex portion 12 so as to be movable in and out toward the outer support portion 6, and elastic members 18 that urge the pair of support shafts 17 outward. Is provided. The left and right inner ends 17a of the pair of support shafts 17 are formed in a rectangular shape corresponding to the holding holes 13, and the left and right outer ends 17b of the pair of support shafts 17 are round shafts corresponding to the fitting portions 15. The inner end 17a side of the pair of support shafts 17 is formed in the left and right outer ends of the holding holes 13 of the support projections 12 so as to be movable back and forth in the left and right directions and rotate around the axis. The inner ends 17 a of the pair of support shafts 17 are inserted so as to be immovable and cannot be inserted into the fitting portions 15 of the support portion 6. The outer end portions 17 b of the pair of support shafts 17 are inserted into the fitting portions 15 of the support portion 6 so as to be relatively movable in the left-right direction and to be rotatable around the axis of the support shaft 17. The elastic member 18 is formed in a round bar shape with a synthetic resin material or rubber material rich in elasticity, and is inserted between the pair of support shafts 17 of the holding hole 13. The elastic member 18 moves the pair of support shafts 17 outward in the left-right direction. It is energizing towards. The lid 11 can be stopped at any open position with respect to the container body 1 by the contact resistance between the outer end portion 17b of the support shaft 17 and the fitting portion 15, and the elastic member 18 is supported. By urging the shaft 17 outward in the left-right direction, the contact resistance between the support shaft 17 and the fitting portion 15 is kept constant.

  As shown in FIG. 1, the front end surface 1a of the container body 1 and the front end surface 11a of the lid 11 are curved and formed into a continuous concave shape, leaving the lower end portion of the front end surface 1a and the upper end portion of the front end surface 11a, When the lid 11 is opened and closed with respect to the container body 1, the lid 11 can be easily opened and closed by hooking fingers of both hands on the front end face 1 a of the container body 1 and the front end face 11 a of the lid 11. It is like that.

In the case of this embodiment, the lid body opening / closing assistance that makes it possible to stop the lid body 11 at an arbitrary opening / closing position using the biasing force of the elastic member 18 between the support shaft 17 and the fitting portion 15. The means is constituted by a contact resistance between the support shaft 17 and the fitting portion 15.
According to the above embodiment, when the container main body 1 and the lid body 11 are assembled, as shown in FIG. The support convex portion 12 may be fitted between the pair of support portions 6 of the container body 1, and the pair of left and right support shafts 17 protrude outward in the left-right direction by the biasing of the elastic member 18. The outer end portions 17b of the pair of support shafts 17 are fitted into the fitting portions 15 of the pair of left and right support portions 6 of the container body 1, and the lid body 11 can be opened and closed around the support shaft 17 with respect to the container body 1. It becomes. Therefore, the container body 1 and the lid body 11 can be easily assembled.

  Further, after the container body 1 and the lid body 11 are assembled, the support shaft 17, the fitting portion 15, and the holding hole 13 are not exposed to the outside, and the appearance of the container is very good. Moreover, since the fitting part 15 should just be provided in the inner end side in a pair of support part 6 of the container main body 1, the corner | angular part of the left-right outer side of the rear end of a pair of support part 6 (container main body 1) Can be cut out greatly, so that there are fewer restrictions on the design of the container body 1, for example, the left and right sides of the rear end of the container body 1 and the left and right sides of the rear end of the lid 11 corresponding thereto. In addition, a round R that draws a large arc can be provided. From this point, the design of the container can be improved and the appearance of the container can be improved.

  Further, since the elastic member 18 urges the pair of support shafts 17 outward in the left-right direction, and the outer end portion 17b of the support shaft 17 can be pressed and held on the bottom surface of the fitting portion 15 or the like, the elastic member 18 18, the contact resistance between the support shaft 17 and the fitting portion 15 can be stably maintained, and the outer end portion 17 b of the support shaft 17 can be held in the container by the contact resistance with the fitting portion 15. The lid 11 can be stopped at any open position with respect to the main body 1, and the free stop function can be maintained over a long period of time.

  4 and 5 show another embodiment, and a pair of left and right guide grooves 21 communicating with the holding hole 13 are provided in both end portions of the support convex portion 12 in the extending and retracting direction (left and right direction) of the support shaft 17. Yes. Each of the pair of support shafts 17 is provided with an engaging protrusion 22, and each engaging protrusion 22 is inserted through the pair of guide grooves 21 from the holding hole 13 side. The engagement protrusion 22 can move in the guide groove 21 in the support shaft 17 in the retracting direction (left-right direction), and the movement range of the engagement protrusion 22 is such that the support shaft 17 is not pulled out of the holding hole 13. Is regulated within. The other points are the same as those in the embodiment shown in FIGS.

  Therefore, in the case of this embodiment, in addition to the effects of the embodiment of FIGS. 1 to 3, the support shaft 17 is inserted into the holding hole 13 and the engaging protrusion 22 is inserted into the guide groove 21. As a result, the support shaft 17 can be held in the holding hole 13 so as to be freely withdrawn / removed without fear of being removed from the holding hole 13, and the container body 1 and the lid body 11 can be more easily assembled. It becomes possible.

  FIG. 6 shows another embodiment, in which a pair of locking projections 25 are provided at the opening edges of the pair of left and right guide grooves 21 of the support projection 12, and the pair of locking projections 25 are in the horizontal direction of the guide grooves 21. The pair of locking projections 25 are disposed in the middle part on the inner side, and the pair of locking projections 25 support the shaft against the urging force of the elastic member 18 in a state where the full length in the left-right direction of the support shaft 17 is retracted into the holding hole 13. The engagement protrusion 22 is configured to be detachably locked so as to restrict the movement of the protrusion 17. Thus, in this case, the lock mechanism 26 that locks the support shaft 17 so as to be unlockable in the retracted position against the urging force of the elastic member 18 includes the guide groove 21, the engagement protrusion 22, the engagement protrusion 25, and the like. It is comprised by. Other points are the same as those of the embodiment shown in FIGS.

  In the case of this embodiment, the support shaft 17 is moved backwardly into the holding hole 13 by pressing the support shaft 17 inward in the left-right direction from the state in which the support shaft 17 protrudes outward from the holding hole 13. Can be held in a state of being retracted into the holding hole 13, so that when the container body 1 and the lid body 11 are assembled, if the pair of support shafts 17 are retracted into the holding hole 13, a finger or the like Thus, it is not necessary to hold the pair of support shafts 17 inward in the left-right direction, and the lid body 11 can be more easily assembled to the container body 1.

  7 and 8 show another embodiment, and the outer end portion 17b of the support shaft 17 has a round shaft shape and is formed in a different shape having a protrusion 31 at a part in the circumferential direction, and is fitted. The portion 15 has a round hole shape corresponding to the outer end portion 17 b of the support shaft 17 and is formed in a deformed shape having a groove portion 32 in a part of the circumferential direction. The protrusion 31 and the groove portion 32 of the fitting portion 15 are configured to coincide with each other. When the lid body 11 is opened, the protrusion 31 of the support shaft 17 is detached from the groove portion 32 of the fitting portion 15 so as to be fitted. The contact resistance of the support shaft 17 with respect to the joint portion 15 is increased, and the lid body 11 can be stopped at an arbitrary opening / closing position with respect to the container body 1.

  Further, a cam mechanism 33 is provided between the pair of support shafts 17 and the fitting portions 15 of the pair of support portions 6. The cam mechanism 33 operates to close the lid 11 by the urging force of the elastic member 18 when the lid 11 approaches the closed position, and the lid 11 is in a predetermined open position (for example, a fully open position of about 180 °). ) Is moved in the direction to open the lid 11 by the biasing force of the elastic member 18.

  That is, as shown in FIG. 7, a pair of trapezoidal convex cams 35a, 35b and a pair of trapezoidal concave cams 36a, 36b are alternately provided in the circumferential direction on the outer end surface of the support shaft 17. The first inclined surfaces 37a and 37b and the second inclined surfaces 38a and 38b are respectively arranged at the boundary portions between the convex cams 35a and 35b and the concave cams 36a and 36b that are adjacent in the direction. In addition, a pair of trapezoidal concave cams 39a and 39b and a pair of trapezoidal convex cams 40a and 40b are alternately provided in the circumferential direction on the bottom surface of the fitting portion 15, and the concave cams 39a adjacent to each other in the circumferential direction. , 39b and convex cams 40a, 40b, first inclined surfaces 41a, 41b and second inclined surfaces 42a, 42b are respectively arranged at the boundary portions.

  The pair of convex cams 35a and 35b of the support shaft 17 and the pair of concave cams 39a and 39b of the fitting portion 15 correspond to each other, and the pair of concave cams 36a and 36b of the support shaft 17 and the pair of fitting portions 15 The convex cams 40a and 40b correspond to each other, and the convex cams 35a, 35b, 40a and 40b and the concave cams 36a, 36b, 39a and 39b constitute the cam mechanism 33.

Next, as shown in FIG. 7A, the boundary portions between the projecting end surfaces of the convex cams 35a and 35b of the support shaft 17 and the first inclined surfaces 37a and 37b are corner portions A1 and A2, and the fitting portion 15 The operation function of the cam mechanism 33 will be specifically described with the boundary portions between the protruding end surfaces of the convex cams 40b and 40a and the first inclined surfaces 41a and 41b as corners B1 and B2.
As shown in FIGS. 7A and 8A, when the lid 11 is closed with respect to the container main body 1, the concave cams 39a and 39b on the fitting portion 15 (container main body 1) side are Since the convex cams 35a and 35b on the support shaft 17 (lid body 1) side are displaced in the direction in which the lid body 11 opens, the convex cam 35a with respect to the first inclined surfaces 41a and 41b of the concave cams 39a and 39b. , 35b of the first inclined surfaces 37a, 37b are displaced in the opening direction and come into surface contact, and the urging force of the elastic member 18 in the direction of arrow a is closed in the direction in which the lid 11 closes around the support shaft 17 relative to the container body 1. It comes to work.

  Further, by turning the lid body 11 in the closing direction from the state shown in FIG. 8B, the corner portions A1 and A2 exceed the corner portions B1 and B2 in the closing direction of the lid body 11, and the container body 1 is moved. On the other hand, when the lid body 11 approaches the closing position by a predetermined amount or more, the first inclined surfaces 37a and 37b of the convex cams 35a and 35b are displaced in the opening direction with respect to the first inclined surfaces 41a and 41b of the concave cams 36a and 36b. The lid 11 is moved in the closing direction around the support shaft 17 with respect to the container body 1 by the urging force of the elastic member 18.

  From the state shown in FIG. 8 (b), the lid body 11 is rotated in the opening direction so that the corners A1, A2 exceed the corners B1, B2 in the closing direction of the lid body 11, as shown in FIG. 8 (c). The protruding end surfaces of the convex cams 35a and 35b of the support shaft 17 abut against the protruding end surfaces of the convex cams 40b and 40a of the fitting portion 15, whereby the biasing force of the elastic member 18 is applied to the lid body 11. In this case, the protrusion 31 of the support shaft 17 is detached from the groove 32 of the fitting portion 15, and the contact resistance of the support shaft 17 with respect to the fitting portion 15 is increased. The lid 11 can be stopped at any open / closed position with respect to the container body 1.

As shown in FIG. 8 (d), when the lid 1 is opened to a predetermined open position (full open position of about 180 ° in the illustrated example), the convex cams 35 a and 35 b of the support shaft 17 are recessed in the fitting portion 15. The cams 39b and 39a are fitted, and the concave cams 36a and 36b of the support shaft 17 are fitted to the convex cams 40b and 40a of the fitting part 15, and the lid body 11 is held at a predetermined open position (fully opened position). Is done.
8D, in the slightly opened state shown in FIG. 8D, the convex cams 35b, 35a on the support shaft 17 (lid body 1) side with respect to the concave cams 39a, 39b on the fitting portion 15 (container body 1) side. However, since the lid 11 is displaced in the closing direction, the second inclined surfaces 38b, 38a of the convex cams 35b, 35a are displaced in the closing direction with respect to the second inclined surfaces 42a, 42b of the concave cams 39a, 39b. Then, the urging force of the elastic member 18 acts on the cover body 11 in the opening direction around the support shaft 17 with respect to the container body 1.

The other points are the same as those in the embodiment shown in FIGS. 1 and 2, and as in the case of the embodiment, the assembly of the container body 1 and the lid 11 can be easily performed. After the container body 1 and the lid 11 are assembled, the support shaft 17, the fitting portion 15, and the holding hole 13 are not exposed to the outside, and the appearance of the container is very good.
In the case of this embodiment, the lid body opening / closing assistance that makes it possible to stop the lid body 11 at an arbitrary opening / closing position using the biasing force of the elastic member 18 between the support shaft 17 and the fitting portion 15. The means is constituted by a contact resistance between the support shaft 17 and the fitting portion 15. Further, between the support shaft 17 and the fitting portion 15, the urging force of the elastic member 18 is used to operate the lid body 11 in the opening direction, and the lid body 11 is moved in the closing direction to open and close the lid body opening / closing assisting means. However, the cam mechanism 13 is used.

  Furthermore, according to the above embodiment, when the lid body 11 approaches the closing position and when the lid body 11 is closed by the cam mechanism 33, the cam mechanism 33 causes the lid body 11 to be urged by the biasing force of the elastic member 18. It can be operated or operated in the closing direction, and the lid 11 can be easily closed, which is convenient for use. Further, the lid 11 can be held in a closed state by acting in the direction in which the lid 11 is closed by the urging force of the elastic member 18, so that the lid is placed between the front ends of the container body 1 and the lid 11. A separate hook mechanism for holding 11 in a closed state can be omitted (less hook), and the front end side of the compact container can be made into a clean shape to improve appearance. The manufacturing cost can be reduced by omitting the components.

Further, when the lid 11 approaches a predetermined open position (for example, the fully open position shown in FIG. 8D), the cam mechanism 33 is operated to open the lid 11 by the biasing force of the elastic member 18. Therefore, the lid body 11 can be opened easily, and the lid body 11 can be prevented from unexpectedly closing from the opened state, which is convenient for use.
Further, the lid body 11 is also predetermined when the concave cams 36a and 36b of the support shaft 17 are fitted into the convex cams 40a and 40b of the fitting portion 15 at a predetermined open position such as a fully open position. From this point, it is possible to prevent the lid body 11 from being accidentally closed from the opened state, which is convenient.

  Further, since a contact resistance is provided between the support shaft 17 and the fitting portion 15 so that the lid body 11 can be stopped at an arbitrary opening / closing position with respect to the container body 1, the lid body 11 is placed within a certain range. The opening and closing of the lid 11 can be stopped steplessly, and the opening and closing of the lid 11 can be stopped at any open position, which is convenient for use. Further, since the elastic member 18 urges the pair of support shafts 17 outward in the left-right direction, and the outer end portion 17b of the support shaft 17 can be pressed and held on the bottom surface of the fitting portion 15 or the like, the elastic member By the urging force of 18, the contact resistance between the support shaft 17 and the fitting portion 15 can be stably maintained, and the free stop function can be maintained over a long period of time.

9 and 10 show another embodiment, the outer end portion 17b of the support shaft 17 is formed in a round shaft shape, and the fitting portion 15 has a round hole shape corresponding to the outer end portion 17b of the support shaft 17. 7 and 8, the support shaft 17 is not provided with the protrusion 31, and the fitting portion 15 is not provided with the groove 32.
7 and 8, the cam mechanism 33 is provided between the pair of support shafts 17 and the fitting portions 15 of the pair of support portions 6, and the cam mechanism 33 is When the lid body 11 approaches the closed position, the lid body 11 is moved in the closing direction by the urging force of the elastic member 18, and the lid body 11 approaches a predetermined open position (for example, a fully open position of about 180 °). In addition, the cover member 11 is moved in the opening direction by the urging force of the elastic member 18, but the configuration of the cam mechanism 33 is different from the case of the embodiment of FIGS.

  That is, as shown in FIG. 9, a pair of triangular convex cams 45a and 45b are formed on the outer end surface of the support shaft 17 at intervals in the circumferential direction, and the respective convex cams 45a and 45b are steeply inclined first. It has inclined surfaces 47a and 47b and second inclined surfaces 48a and 48b that are gently inclined. A pair of triangular first concave cams 50a and 50b and triangular second concave cams 51a and 51b are formed on the bottom surface of the fitting portion 15 one after another in the circumferential direction. The first concave cams 50a and 50b have first inclined surfaces 53a and 53b that are steeply inclined and second inclined surfaces 54a and 54b that are gently inclined, and the second concave cams 51a and 51b are third that are steeply inclined. It has inclined surfaces 55a and 55b and gently inclined fourth inclined surfaces 56a and 56b.

  The convex cams 45a, 45b of the support shaft 17 correspond to the first concave cams 50a, 50b of the fitting portion 15, and the first inclined surfaces 47a, 47b of the convex cams 45a, 45b and the first concave cam 50a. , 50b are inclined at the same angle in the same direction as the second inclined surfaces 48a, 48b of the convex cams 45a, 45b and the second inclined surfaces 54a of the first concave cams 50a, 50b. 54b is inclined at the same angle in the same direction.

The cam mechanism 33 is constituted by the convex cams 45a, 45b and the concave cams 50a, 50b, 51a, 51b.
Next, as shown in FIG. 9 (a), the tips of the convex cams 45a and 45b of the support shaft 17 are the top portions C1 and C2, and the ends of the concave cams 50a and 50b in the opening direction are the base portions D1 and D2, respectively. The operation function of the cam mechanism 33 will be specifically described with the bottoms 51a and 51b as the bottoms E1 and E2.

  As shown in FIG. 9A and FIG. 10A, when the lid 11 is closed with respect to the container body 1, the first concave cams 50a and 50b on the fitting portion 15 (container body 1) side. Since the convex cams 45a and 45b on the support shaft 17 (lid body 1) side are displaced in the direction in which the lid body 11 is opened, the first inclined surfaces 53a and 53b of the first concave cams 50a and 50b are displaced. The first inclined surfaces 47a and 47b of the convex cams 45a and 45b are displaced in the opening direction and come into surface contact, and the urging force of the elastic member 18 causes the lid 11 to close to the container body 1 around the support shaft 17. It comes to work.

  Further, by rotating the lid body 11 in the closing direction from the state shown in FIG. 10B, the top portions C1 and C2 exceed the base portions D1 and D2 in the closing direction of the lid body 11, and the container body 1 is thus closed. When the lid body 11 approaches the closing position by a predetermined amount or more, the first inclined surfaces 47a and 47b of the convex cams 45a and 45b are displaced in the opening direction with respect to the first inclined surfaces 53a and 53b of the first concave cams 50a and 50b. The lid 11 is moved in the closing direction around the support shaft 17 with respect to the container body 1 by the urging force of the elastic member 18.

  From the state shown in FIG. 10B, the lid 11 rotates in the opening direction, and the tops C1 and C2 of the convex cams 45a and 45b open the bases D1 and D2 of the first concave cams 50a and 50b. As shown in FIG. 10 (c), the tops C1 and C2 of the convex cams 45a and 45b of the support shaft 17 are in contact with the fourth inclined surfaces 56b and 56a of the second concave cams 51a and 51b. Thereby, the urging force of the elastic member 18 comes to operate in the direction in which the lid 11 is opened.

As shown in FIG. 10 (d), when the lid 1 is opened to a predetermined open position (about 130 °), the top portions C 1 and C 2 of the convex cams 45 a and 45 b of the support shaft 17 are the second of the fitting portion 15. The lid 1 is positioned and held at a predetermined open position by engaging with the bottoms E2 and E1 of the concave cams 51b and 51a.
As shown in FIG. 10 (e), when the lid 1 is opened to a predetermined open position (for example, a fully open position of about 180 ° in the illustrated example), the convex cams 45 a and 45 b of the support shaft 17 The lid 1 is held in a predetermined open position (fully open position) by fitting into the first concave cams 50b and 50a.

  In a slightly forward state of the fully opened state shown in FIG. 10 (e), the convex cam 45b on the support shaft 17 (lid body 1) side with respect to the first concave cams 50a and 50b on the fitting portion 15 (container body 1) side. , 45a are displaced in the direction in which the lid 11 is closed, and the second inclined surfaces 48b, 48a of the convex cams 45b, 45a are closed with respect to the second inclined surfaces 54a, 54b of the first concave cams 50a, 50b. The urging force of the elastic member 18 acts in a direction in which the lid 11 is opened around the support shaft 17 with respect to the container body 1.

The other points are the same as those in the embodiment shown in FIGS. 1 and 2, and as in the case of the embodiment, the assembly of the container body 1 and the lid 11 can be easily performed. After the container body 1 and the lid 11 are assembled, the support shaft 17, the fitting portion 15, and the holding hole 13 are not exposed to the outside, and the appearance of the container is very good.
In the case of this embodiment as well, as in the case of the embodiment of FIGS. 7 and 8, the biasing force of the elastic member 18 is used between the support shaft 17 and the fitting portion 15, The lid body opening / closing assisting means that can stop the lid body 11 at an arbitrary opening / closing position is configured by contact resistance between the support shaft 17 and the fitting portion 15. Further, between the support shaft 17 and the fitting portion 15, the urging force of the elastic member 18 is used to operate the lid body 11 in the opening direction, and the lid body 11 is moved in the closing direction to open and close the lid body opening / closing assisting means. However, the cam mechanism 13 is used.

  Furthermore, according to the above embodiment, when the lid body 11 approaches the closing position and when the lid body 11 is closed by the cam mechanism 33, the cam mechanism 33 causes the lid body 11 to be urged by the biasing force of the elastic member 18. It can be operated or operated in the closing direction, and the lid 11 can be easily closed, which is convenient for use. In addition, it is possible to omit providing a hook mechanism for holding the lid 11 in a closed state between the front end portions of the container body 1 and the lid body 11 (hookless), and the front end portion of the compact container The appearance can be improved by making the side clean, and the manufacturing cost can be reduced by omitting the components.

  Further, when the lid 11 approaches a predetermined open position (the open position shown in FIG. 10C or the fully open position shown in FIG. 10E), the cam mechanism 33 causes the lid to be applied by the urging force of the elastic member 18. Since the body 11 can be operated in the opening direction, the lid body 11 can be opened easily, and the lid body 11 is prevented from being unexpectedly closed from the opened state. This is convenient for use.

Further, when the lid 11 is fitted into the concave cams 51a and 51b or the concave cams 50a and 50b of the fitting portion 15 at a predetermined open position such as a fully opened position. The lid 11 can be more reliably held at the predetermined open position, and also from this point, the lid 11 can be prevented from unexpectedly closing from the opened state, which is convenient.
In the case of the embodiment of FIGS. 7 and 8 or the embodiment of FIGS. 9 and 10, as in the case of the embodiment of FIG. 5, the guide that communicates with the holding hole 13 in the support convex portion 12. The groove 21 is provided in the support shaft 17 withdrawing / withdrawing direction, and the engagement protrusion 22 that is movable in the support shaft 17 withdrawing / retracting direction and is inserted through the guide groove 21 so that the support shaft 17 is not pulled out of the holding hole 13 is supported. Further, as in the case of the embodiment of FIG. 6, the engagement protrusion may be used to restrict the protruding movement of the support shaft 17 in a state in which the support shaft 17 is retracted into the holding hole 13. A locking convex portion 25 that detachably locks 22 may be provided at the opening edge of the guide groove 21.

  In the above-described embodiment, the elastic member 18 is formed of a synthetic resin material or rubber material rich in elasticity, and is inserted between the pair of support shafts 17 of the holding hole 13. As described above, the end portions of the elastic member 18 may be coupled to the pair of support shafts 17, and the pair of support shafts 17 may be biased outward in the left-right direction by the elastic member 18. Further, the elastic member 18 may be constituted by a coil spring or the like instead of the synthetic resin material or the rubber material.

  7 and 8, the same cam mechanism 33 is provided between the pair of support shafts 17 and the fitting portions 15 of the pair of support portions 6. When the lid body 11 approaches the closed position, the lid body 11 is moved in the closing direction by the urging force of the elastic member 18, and the lid body 11 approaches a predetermined open position (for example, a fully open position of about 180 °). In the embodiment shown in FIGS. 9 and 10, as in the case of the embodiment shown in FIGS. 7 and 8, the lid 11 is moved by the urging force of the elastic member 18. The same cam mechanism 33 is provided between the pair of support shafts 17 and the fitting portions 15 of the pair of support portions 6, and the cam mechanism 33 is an elastic member when the lid body 11 approaches the closed position. Operates in the direction to close the lid 11 by the urging force of 18 In addition, when the lid body 11 exceeds a predetermined opening position (for example, an opening position of about 30 °), the lid body 11 is moved in the opening direction by the urging force of the elastic member 18. Instead, a cam mechanism 33 having a different structure and function may be provided between the pair of support shafts 17 and the fitting portions 15 of the pair of support portions 6.

  For example, between the one support shaft 17 and the fitting portion 15 of the one support portion 6, the lid body 11 is moved in the closing direction by the urging force of the elastic member 18 when the lid body 11 approaches the closing position. A cam mechanism 33 is provided and elastic when the lid 11 exceeds a predetermined open position (for example, an open position of about 30 °) between the other support shaft 17 and the fitting portion 15 of the other support portion 6. You may make it provide the cam mechanism 33 which operates in the direction which opens the cover body 11 with the urging | biasing force of the member 18. As shown in FIG.

  Further, for example, when the lid body 11 approaches the closing position between the one support shaft 17 and the fitting portion 15 of the one support portion 6, the lid body 11 is closed by the biasing force of the elastic member 18. A cam mechanism 33 to be operated is provided, and the lid 11 is elastic toward a predetermined open position (for example, a fully open position of about 180 °) between the other support shaft 17 and the fitting portion 15 of the other support portion 6. A cam mechanism 33 that moves the lid 11 in the direction of opening the lid 11 by the biasing force of the member 18 is provided. Further, the cam mechanism 33 presses one support shaft 17 inward in the left-right direction against the biasing force of the elastic member 18. A release button may be provided to prevent the operation in the closing direction by 33 from acting. In this case, when the lid 11 is closed, the lid 11 can be automatically opened by the urging force of the elastic member 18 by releasing the release button.

  Further, for example, when the lid body 11 approaches the closing position between the one support shaft 17 and the fitting portion 15 of the one support portion 6, the lid body 11 is closed by the biasing force of the elastic member 18. The cam mechanism 33 to be operated is provided, and the lid body 11 exceeds a predetermined open position (for example, an open position of about 30 °) between the other support shaft 17 and each fitting portion 15 of the other support portion 6. A cam mechanism 33 that moves the lid 11 in the direction to open the lid 11 by the urging force of the elastic member 18 is sometimes provided, and the outer end portion 17b of the other support shaft 17 has an irregular shape having a protrusion 31 at a part in the circumferential direction. When the lid 11 is opened (except when approaching the predetermined opening position), the other fitting portion 15 is formed in a modified shape having a groove portion 32 in a part of the circumferential direction, and the fitting portion is removed. The protrusion 31 of the support shaft 17 is detached from the 15 groove portions 32, and the fitting portion 15 is Contact resistance is increased in the lifting shaft 17, the lid 11 to the container main body 1 at any open position may be stopped (free stop operation).

  Further, for example, when the lid body 11 approaches the closing position between the one support shaft 17 and the fitting portion 15 of the one support portion 6, the lid body 11 is closed by the biasing force of the elastic member 18. A cam mechanism 33 to be operated is provided, and the lid 11 is directed to a predetermined open position (for example, a fully open position of about 180 °) between the other support shaft 17 and each fitting portion 15 of the other support portion 6. A cam mechanism 33 that moves the lid 11 in the direction to open the lid 11 by the biasing force of the elastic member 18 is provided, and the outer end 17b of the other support shaft 17 is formed in a different shape having a protrusion 31 at a part in the circumferential direction. When the lid 11 is opened by forming the other fitting portion 15 in a shape having a groove portion 32 in a part of the circumferential direction, the protrusion 31 of the support shaft 17 is detached from the groove portion 32 of the fitting portion 15. The contact resistance of the support shaft 17 with respect to the fitting portion 15 is increased, and the container body 1 On the other hand, the lid body 11 is stopped at an arbitrary opening / closing position (free stop operation), and one of the support shafts 17 is pressed inward in the left-right direction against the urging force of the elastic member 18 to form a cam mechanism. A release button may be provided to prevent the operation in the closing direction by 33 from acting. In this case, when the lid 11 is closed, the lid 11 can be automatically opened by the urging force of the elastic member 18 by releasing the release button.

  In the embodiment, the holding hole 13 is provided in the support convex portion 12 so as to penetrate in the left-right direction, and one elastic member 18 that biases the pair of support shafts 17 outward is provided in the holding hole 13. In place of this, instead of this, as shown in FIG. 12, a pair of holding holes 13 that are open on the outer side are provided on the left and right sides of the support convex portion 12, and a pair of support shafts 17 are provided in each of the holding holes 13. The elastic members 18 that urge the pair of support shafts 17 outward may be housed and held in the pair of holding holes 13 respectively. With this configuration, the urging forces of the pair of elastic members 18 can be made different from each other. In this case, for example, each of the pair of support shafts 17 and the pair of support portions 6 as described above. When the cam mechanisms 33 having different structures and functions are provided between the fitting portions 15, the pair of elastic members 18 can be set to optimum biasing forces corresponding to the different cam mechanisms 33. Each cam mechanism 33 can function optimally.

Further, instead of the embodiment, as shown in FIGS. 13A, 13B, and 13C, an opening 59 communicating with the holding hole 13 is provided in the support convex portion 12, and the elastic member 18 is configured by a leaf spring. Then, each end of the elastic member 18 may be connected to the pair of support shafts 17 via the hinge portion 60.
In this case, as shown in FIG. 13A, the elastic member 18 is protruded outward from the opening 59 in a state where the elastic member 18 is curved in an arc shape. The pair of support shafts can be configured not to be biased outward in the left-right direction, and in this state, the outer end portions 17b of the pair of support shafts 17 do not protrude outward from the holding hole 13 in the left-right direction. 17 protruding movements can be regulated. Therefore, in the state shown in FIG. 13A, it is not necessary to hold the outer end portions 17b of the pair of support shafts 17 in the holding holes 13 with fingers or the like, and the pair of left and right supports of the container body 1 are supported. The support convex portion 12 of the lid 11 can be easily and reliably fitted and disposed between the portions 6. Thereafter, as shown in FIG. 13B, the elastic member 18 pushes the central portion of the elastic member 18 projecting outward from the opening 59 toward the holding hole 13, thereby moving the pair of support shafts 17 in the left-right direction. By pressing outward, the outer end portions 17b of the pair of support shafts 17 can be easily and reliably fitted from the holding holes 13 to the fitting portions 15. Further, as shown in FIG. 13C, the pair of support shafts 17 are moved inward in the left-right direction from the holding holes 13 by pressing the central part of the elastic member 18 against the inner wall surface of the holding hole 13 facing the opening 59. The outer end portions 17b of the pair of support shafts 17 are fitted with the outer end portions 17b of the pair of support shafts 17 with a strong force by the urging force of the elastic member 18 so that the outer end portions 17b of the pair of support shafts 17 do not accidentally come off the fitting portion 15. The portion 15 can be fitted and held.

  Further, instead of the embodiment, as shown in FIGS. 14A, 14B, and 14C, the support protrusion 12 is provided with an opening 59 communicating with the holding hole 13, and the elastic member 18 is configured by a leaf spring. Then, both end portions of the elastic member 18 are connected to the pair of support shafts 17 via the hinge portions 60, respectively, and a hinge portion 61 is provided at the central portion in the longitudinal direction (left-right direction) of the elastic member 18, and FIG. As shown in the figure, the elastic member 18 may be bent at the hinge portion 61 to form a pair of left and right elastic portions 62 curved in an arc shape.

  In this case, as shown in FIG. 14A, the elastic member 18 is protruded outward from the opening 59 in a state where the elastic member 18 is curved in an arc shape, so that the elastic member 18 is left and right with respect to the pair of support shafts 17. In this state, the pair of support shafts 17 can prevent the outer end portions 17b of the pair of support shafts 17 from protruding outward in the left-right direction. Can be controlled. Therefore, in the state shown in FIG. 14A, it is not necessary to hold the outer end portions 17b of the pair of support shafts 17 in the holding holes 13 with fingers or the like, and the pair of left and right supports of the container body 1 are supported. The support convex portion 12 of the lid 11 can be easily and reliably fitted and disposed between the portions 6. After that, as shown in FIG. 14B, a pair of elastic portions 62 of the elastic member 18 are pressed against each other by pressing the hinge portion 61 and the like of the elastic member 18 protruding outward from the opening portion 59 toward the holding hole 13 side. The outer end portions 17b of the pair of support shafts 17 can be easily and reliably fitted to the fitting portions 15 from the holding holes 13 by pressing the support shafts 17 outward in the left-right direction. Further, as shown in FIG. 14C, the pair of support shafts 17 are moved inward in the left-right direction by pressing the hinge portion 61 of the elastic member 18 against the inner wall surface of the holding hole 13 facing the opening 59. So that the outer end portions 17b of the pair of support shafts 17 do not accidentally come out of the fitting portion 15 by the urging force of the elastic portions 62 of the elastic member 18, the outer end portions 17b of the pair of support shafts 17 Can be fitted and held in the fitting portion 15 with a strong force.

  In the embodiment shown in FIG. 13, the holding hole 13 is provided in the support convex portion 12 so as to penetrate in the left-right direction, and one elastic member 18 that biases the pair of support shafts 17 outward is held. In place of this, instead of this, as shown in FIG. 15, the support protrusion 12 is provided with a holding hole 13 penetrating in the left-right direction, and the support protrusion 12 communicates with the holding hole 13. A pair of right and left 59 is provided, and a support body 65 slidably fitted in the left and right central portion (between the pair of left and right openings 59) of the holding hole 13 is provided so as to divide the holding hole 13 into left and right. A pair of left and right elastic members 18 are provided corresponding to the left and right sides of the holding hole 13, and each elastic member 18 is configured by a leaf spring, and the outer end portion of each elastic member 18 is connected to each one via a hinge portion 60. The inner end of each elastic member 18 is connected to the support shaft 17 It may be connected to the support 65 via the Nji portion 60. In this case, a stable urging force can be maintained against the pair of support shafts 17 by the pair of left and right elastic members 18 even when the container has a large lateral width.

  Further, in the embodiment shown in FIG. 14, the support protrusion 12 is provided with the holding hole 13 penetrating in the left-right direction, and one elastic member 18 that biases the pair of support shafts 17 outward is provided. However, instead of this, as shown in FIG. 16, a pair of left and right holding holes 13 are provided on both left and right sides of the support convex portion 12, and a pair of left and right holding holes 13 are provided in the support convex portion 12. A pair of left and right openings 59 communicating with each other, a pair of left and right supports 66 slidably fitted to the inner ends of the holding holes 13 in the left-right direction, and an elastic member 18 corresponding to each holding hole 13 are provided. While providing a pair of left and right, the pair of elastic members 18 are configured by leaf springs, and the outer end portions of the pair of elastic members 18 are connected to the respective support shafts 17 via the hinge portions 60, and the pair of elastic members 18. Each inner end portion of each of these is connected to each support body 66 through a hinge portion 60. It may be so. And the hinge part 61 is provided in the center part of the longitudinal direction (left-right direction) of the pair of left and right elastic members 18, and the pair of elastic members 18 are bent by the hinge parts 61, whereby the elastic part 62 curved in an arc shape is obtained. A pair of left and right may be formed. Also in this case, even if the width of the container is large, a stable urging force can be maintained against the pair of support shafts 17 by the pair of left and right elastic members 18.

  In the embodiment, the fitting portion 15 is formed in a concave shape of a round hole, and the outer end portion 17b in the left-right direction of the support shaft 17 is formed in a round shaft shape corresponding to the fitting portion 15. The fitting portion 15 and the support shaft 17 are not limited to such shapes. For example, as shown in FIG. 17, the fitting portion 15 is formed in an annular concave shape, and the left and right sides of the support shaft 17 are correspondingly formed. The outer end portion 17b in the direction may be formed in an annular convex shaft shape. Further, as shown in FIG. 18, the fitting portion 15 may be formed in a circular convex shape, and the outer end portion 17b of the support shaft 17 may be formed in an annular convex shaft shape correspondingly. .

  In the above embodiment, the container body 1 is provided with a pair of support portions 6 that are spaced apart from each other, and the lid body 11 is provided with a support convex portion 12 that is disposed between the pair of support portions 6. A pair of support shafts 17 are provided between the portion 12 and the pair of support portions 6 so that the lid 11 can be opened and closed around the pair of support shafts 17 with respect to the container body 1. Instead, as shown in FIG. 19, a pair of left and right support portions 6 project from the rear end portion of the lid body 11, and a support protrusion disposed between the left and right support portions 6 on the rear wall 4 of the container body 1. The support protrusion 12 is provided with a holding hole 13, the fitting part 15 is provided on the inner end side of the pair of support parts 6, and the support holes 13 on both sides of the support protrusion 12 are provided with a pair of supports. Elasticity that holds the shaft 17 toward and away from the outer support portion 6 and urges the pair of support shafts 17 outward. May be provided wood 18 between the pair of support shafts 17 of the holding hole 13.

  In the above-described embodiment, the pair of support shafts 17 are held by the support convex portion 12 through the holding holes 13 so as to be able to move in and out toward the outer support portion 6, and are held so as to be able to move in and out. An elastic member 18 that biases the pair of support shafts 17 outward is provided, and a fitting portion 15 that fits the outer end portions of the pair of support shafts 17 on the inner end sides of the pair of support portions 6. However, instead of this, only one of the pair of support shafts 17 is held by the support convex portion 12 via the holding hole 13 so as to be movable in and out toward the outer support portion 6. Then, an elastic member 18 that urges the support shaft 17 held so as to be movable in and out is provided outward, and the movable shaft can be moved in and out only on one inner end side of the pair of support portions 6. A fitting portion 15 for fitting the outer end portion of the support shaft 17 held by the support shaft 17 is provided. The other of, it is advisable to fixedly inwardly protrude on the other supporting portion 6. Also in this case, as in the case of the above-described embodiment, the assembly of the container body 1 and the lid body 11 can be easily performed. After the assembly of the container body 1 and the lid body 11, the support shaft 17, The fitting portion 15 and the holding hole 13 are not exposed to the outside, and the appearance of the container is very good.

  In the embodiment shown in FIG. 6, the lock mechanism 26 that locks the support shaft 17 so as to be unlockable in the retracted position against the urging of the elastic member 18 is constituted by the guide groove 21 and the engagement protrusion 22. However, the lock mechanism 26 that locks the support shaft 17 so as to be unlocked in the retracted position against the urging of the elastic member 18 is not limited to this, and may be constituted by a cam or the like, for example. It is.

  In the above embodiment, the present invention is applied to a compact container. Instead, the present invention is applied to a container other than the compact container in which the lid is incorporated in the container main body so as to be opened and closed. You may make it apply to a container.

It is a perspective view of the compact container which shows one embodiment of this invention. It is a disassembled perspective view of the compact container. It is a top view of the compact container which shows the operation | work which integrates a cover body in the container main body. It is a perspective view of the compact container which shows other embodiment. It is a top view of the rear end part of the lid. It is a top view of the rear end part of a lid showing other embodiments. FIG. 7A is a development view of the cam mechanism, and FIG. 7B is an exploded perspective view of the cam mechanism portion, showing another embodiment. 8A and 8B are diagrams for explaining the operation of the cam mechanism by opening and closing the lid, FIG. 8A shows a closed state of the lid, FIG. 8B shows a state where the lid is opened by about 30 °, FIG. 8C shows a state where the lid is opened from about 30 ° to about 180 °, and FIG. 8D shows a state where the lid is opened about 180 °. FIG. 7A is a development view of the cam mechanism, and FIG. 7B is an exploded perspective view of the cam mechanism portion, showing another embodiment. FIG. 10 (a) shows the closed state of the lid body, FIG. 10 (b) shows the state where the lid body is opened by about 30 °, and FIG. FIG. 10C shows a state in which the lid is opened and closed from about 30 ° to about 130 °, FIG. 10D shows a state in which the lid is opened about 130 °, and FIG. 10E shows the lid. Is shown in a state of being opened by about 180 °. It is a top view of the support shaft and elastic member which show other embodiments. It is sectional drawing of the support convex part which shows other embodiment, a support shaft, and an elastic member. FIG. 13A is a plan view of a support shaft and an elastic member showing another embodiment, FIG. 13A shows a state before the elastic member is assembled into the holding hole, and FIG. 13B is a state immediately before the elastic member is incorporated into the holding hole. FIG. 13C shows a state after the elastic member is incorporated into the holding hole. FIG. 14A is a plan view of a support shaft and an elastic member showing another embodiment, FIG. 14A shows a state before the elastic member is assembled into the holding hole, and FIG. 14B is a state immediately before the elastic member is incorporated into the holding hole. FIG. 14C shows a state after the elastic member is incorporated into the holding hole. It is a top view of the support shaft and elastic member which show other embodiments. It is a top view of the support shaft and elastic member which show other embodiments. It is a top view of the support part and support convex part part showing other embodiments. It is a top view of the support part and support convex part part showing other embodiments. It is a disassembled perspective view of the compact container which shows other embodiment.

DESCRIPTION OF SYMBOLS 1 Container body 6 Support part 11 Cover body 12 Support convex part 13 Holding hole 15 Fitting part 17 Support shaft 18 Elastic member 21 Guide groove 22 Engagement protrusion 23 Lock mechanism 33 Cam mechanism

Claims (6)

A container body (1) and a lid body (11) for closing the upper end opening of the container body (1) so as to be openable and closable, and a pair of support portions spaced apart from each other on either the container body (1) or the lid body (11) (6) is provided, and on the other side of the container body (1) or the lid (11), a support convex part (12) disposed between the pair of support parts (6) is provided, and the support convex part (12) And a pair of support portions (6) are respectively provided with support shafts (17), and the lid (11) can be opened and closed around the pair of support shafts (17) with respect to the container body (1). Container opening and closing device,
At least one of the pair of support shafts (17) is held by the support convex portion (12) so as to be able to move in and out toward the outer support portion (6), and is held so as to be movable in and out. An elastic member (18) for urging the support shaft (17) outward is provided, and the support shaft (17) is held on the inner end side of at least one of the support portions (6) so as to be movable in and out. ) Is provided with a fitting portion (15) for fitting the outer end portion ,
An opening (59) communicating with the holding hole (13) is provided in the support convex portion (12), and a midway portion of the elastic member (18) is protruded outward from the opening (59) so that the elastic member ( 18) A container opening and closing device characterized in that the support shaft (17) is not biased outwardly in the left-right direction from the holding hole (13) .   Using the urging force of the elastic member (18) between the support shaft (17) and the fitting portion (15), the lid (11) is moved in the opening direction, and the lid (11) is moved. The container opening / closing device according to claim 1, further comprising a lid opening / closing assisting means for operating in a closing direction or stopping the lid (11) at an arbitrary opening / closing position.   When the lid (11) approaches the closed position between the support shaft (17) and the fitting portion (15), the lid (11) is moved by the urging force of the elastic member (18). The container opening and closing device according to claim 1 or 2, further comprising a cam mechanism (33) for allowing the container to open.   A direction in which the lid (11) is opened by the biasing force of the elastic member (18) when the lid (11) approaches a predetermined opening position between the support shaft (17) and the fitting portion (15). The container opening and closing device according to claim 1 or 2, further comprising a cam mechanism (33) for operating the container.   A contact resistance is provided between the support shaft (17) and the fitting portion (15) so that the lid (11) can be stopped at any open / closed position with respect to the container body (1). The container opening and closing device according to claim 1 or 2. A container body (1) and a lid body (11) for closing the upper end opening of the container body (1) so as to be openable and closable, and a pair of support portions spaced apart from each other on either the container body (1) or the lid body (11) (6) is provided, and on the other side of the container body (1) or the lid (11), a support convex part (12) disposed between the pair of support parts (6) is provided, and the support convex part (12) And a pair of support portions (6) are respectively provided with support shafts (17), and the lid (11) can be opened and closed around the pair of support shafts (17) with respect to the container body (1). Container opening and closing device,
At least one of the pair of support shafts (17) is held by the support convex portion (12) so as to be able to move in and out toward the outer support portion (6), and is held so as to be movable in and out. An elastic member (18) for urging the support shaft (17) outward is provided, and the support shaft (17) is held on the inner end side of at least one of the support portions (6) so as to be movable in and out. ) Is provided with a fitting portion (15) for fitting the outer end portion,
The support protrusion (12) is provided with a holding hole (13) for holding the support shaft (17) movably in and out, and a guide groove (21) communicating with the holding hole (13) is provided in the support shaft (17). Engaging protrusions (in the retracting direction), which are movable in the retracting direction of the support shaft (17) and inserted into the guide groove (21) so that the support shaft (17) is not pulled out of the holding hole (13). The container opening and closing device according to claim 1, wherein 22) is provided on the support shaft (17).

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