JP2014136583A - Rotation auxiliary member, and container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotation auxiliary for improving usability and durability, and a container using the rotation auxiliary member.SOLUTION: A rotation auxiliary member is provided between a container body 2 and a cover 12 relatively rotatably connected around an axis O1, and rotates the cover 12 from a blocking position P1 to an opening position P2. The rotation auxiliary member comprises: a spring holder 31 detachably inserted and fitted in a hole portion formed on the container body 2; a spring arm 32 rotatably connected to an axis O3 parallel with the axis O1 to the spring holder 31, extended in a direction orthogonal to the axis O3, contacted with the cover 12 while the cover 12 is at the blocking position P1, and coming in non-contact with the cover 12 at the opening portion P2; and a torsion spring 33 provided between the spring holder 31 and the spring arm 32, and giving energizing force on the cover 12 through the spring arm 32 toward the opening position P2 at a position where the spring arm 32 contacts with the cover.

Description

  The present invention relates to a member that is provided between two members and assists relative rotation thereof.

  For example, some containers such as a trash can are provided with a lid that can open and close the opening of the container via a hinge.

  Here, such a trash can is disclosed in, for example, Patent Document 1, and a lid is rotatably attached to the trash can main body to open and close the opening. More specifically, in this trash box, the pivot shaft of the protruding portion provided integrally with the trash can main body is fitted in the shaft hole of the hinge provided in the lid, so that the lid is rotated around the pivot shaft. It is possible to move. In addition, an opening spring that applies a biasing force to the lid so as to push the lid upward with respect to the trash can main body is attached at a position where the hinge is provided, and assists the rotation of the lid.

JP 2008-280143 A

However, in the trash box disclosed in Patent Document 1, hinge portions (portions such as hinges, opening springs, protrusions, and the like that assist the rotation of the lid) are integrated with the lid and the trash box body. For this reason, when the lid is opened, if the lid rotates more than necessary due to the opening momentum, a tensile force from the lid acts on the hinge portion, and this hinge portion exceeds the movable limit and exerts a force. Since it is received, there is a possibility that the hinge part may be deteriorated or damaged.
Further, the urging force from the hinge portion is continuously applied to the lid, and there is a possibility that the lid will turn over more than necessary to cause the container body to fall by the turning force of the lid. Further, even if the hinge portion is deteriorated or damaged, it is not possible to replace only the hinge portion, and the entire lid needs to be replaced.

  The present invention has been made in consideration of such circumstances, and provides a rotation assisting member that improves durability and improves usability, and a container using the rotation assisting member. For the purpose.

In order to solve the above problems, the present invention employs the following means.
That is, the rotation assisting member according to the present invention is provided between the first member and the second member that are connected so as to be capable of relative rotation about the first axis, and the second member with respect to the first member. A rotation assisting member for rotating the second member toward a second position separated from a first position where the member is adjacent, and a first support portion detachably fitted to the first member; The second support is connected to the first support portion so as to be rotatable about a second axis parallel to the first axis and extends in a direction perpendicular to the second axis, and the second member is at least in the first position. In a position where the second support portion is in contact with the second member in a state, and is provided between the first support portion and the second support portion, and the second support portion is in contact with the second member. An elastic member that applies a biasing force to the second member via the second support portion toward the second position , Characterized in that it comprises a.

According to such a rotation assisting member, the second support member and the second member are brought into contact with each other at least at the first position, whereby the biasing force of the elastic member is applied to the second member and the second member is moved to the second position. Rotate toward That is, the second support portion and the second member are not fixed, and even if the second member tries to rotate beyond the second position due to the rotational force of the second member, Since the two support portions are separated from the second member and operate as separate bodies, the force from the second member does not act on the rotation assisting member.
Further, the urging force from the second support portion does not act on the second member continuously beyond the second position.
Furthermore, the 1st support part is provided in the 1st member so that attachment or detachment is possible. That is, the rotation assisting member and the first member are separated from each other, and the second support portion is also separated from the second member. Accordingly, since the first support portion and the second support portion are provided as completely independent members, the rotation assisting member is temporarily deteriorated or damaged by repeating the rotation of the second member. Even so, only the rotation assisting member can be easily replaced.

  The first support portion may rotate around a third axis parallel to the second axis while being fitted to the first member.

  In the present invention, since the second member and the second support portion are separate from each other with respect to the rotation assisting member, the second support portion is interposed between the first member and the second member when the second member is rotated. For example, when the rotation assisting member is applied to the lid of the container or the like, the rotation assisting member may obstruct the contents in and out of the container. By rotating one member around the third axis, for example, the entire rotation assisting member is operated so that the second support portion comes into contact with the second member, so that the rotation assisting member does not get in the way. it can.

  Furthermore, in the container according to the present invention, the first member is a container body in which an opening is formed, the second member is a lid that opens and closes the opening, and the first position is the The opening is a position where the opening is closed, the second position is a position where the opening is opened, and the container body and the lid are in the first position. A rotation restricting portion for restricting relative rotation between the rotation assisting member and the rotation assisting member.

According to such a container, when the rotation restricting portion is released, the lid opens the opening.
Here, by applying the rotation assisting member to the container, it is possible to prevent the rotation assisting member from being deteriorated or damaged without the force from the lid acting on the rotation assisting member more than necessary. Further, since it is possible to prevent the urging force from acting on the lid continuously beyond the second position, it is possible to suppress the container body from being overturned by the rotational force of the lid. Further, only the rotation assisting member can be replaced.

  According to the rotation assisting member of the present invention and the container equipped with the same, the durability assisting and the usability can be improved by making the rotation assisting member separate.

It is a whole perspective view which shows the state which has a lid | cover in an open position regarding the trash can which concerns on embodiment of this invention. It is a top view which shows the state which has a lid | cover in the obstruction | occlusion position regarding the trash box which concerns on embodiment of this invention, Comprising: It is a figure which fractures | ruptures and shows a part of lid | cover. It is a side view which shows the state which has a lid | cover in a closed position regarding the trash can which concerns on embodiment of this invention. It is a schematic sectional drawing which shows the mode of operation | movement in a rotation control part regarding the trash can which concerns on embodiment of this invention. It is a whole perspective view showing a rotation auxiliary member about a trash box concerning an embodiment of the present invention. It is a perspective view which shows the hole part of the container main body in which the rotation assistance member is inserted regarding the trash box which concerns on embodiment of this invention. It is a figure which shows the state where the hinge member was inserted in the hole of a container main body, and the same position as the AA cross section of FIG. 6 regarding the trash can which concerns on embodiment of this invention. It is sectional drawing which shows the mode of the opening / closing operation | movement of a lid | cover in time series in order of (a), (b), (c) regarding the trash can which concerns on embodiment of this invention.

Hereinafter, a trash can (container) 1 according to an embodiment of the present invention will be described.
As shown in FIGS. 1 to 3, the trash can 1 includes a container main body (first member) 2 for storing trash, a lid (second member) 12 provided on the upper portion of the container main body 2, a container main body 2, A rotation assisting member 30 provided between the lid 12 and a rotation restricting portion 20 that holds the lid 12 in a closed state is provided, and a closed position (first position) P1 and an open position (second position). The lid 12 opens and closes with P2 (see FIG. 8).

  The container body 2 includes four side plates 2A facing in the width direction (left and right direction in FIG. 2) and depth direction (up and down direction in FIG. 2), and the bottom plate 2B in the lower direction (direction toward the page in FIG. 2). The bottomed cylindrical member is formed with an opening 10 that opens upward, and is formed of a material such as a resin. Further, on the upper side of each side plate 2A, the outer side in the width direction, the front side in the depth direction (downward in the drawing in FIG. 2), and the back side (on the drawing in FIG. 2) so that the opening size of the opening 10 is widened. And the upper frame portion 3 extending upward.

In the present embodiment, in each side plate 2A, a concave portion 2a that is recessed toward the inside of the container body 2 is formed over a region from a connection edge with the bottom plate 2B to a midway position in the vertical direction. The recess 2 a is formed so as to protrude inward from the side plate 2 </ b> A inside the container body 2.
Moreover, in this embodiment, the connection edge part of four side plates 2A is made into R shape, and the container main body 2 becomes a rounded shape as a whole.

  Further, as shown in FIG. 2, the upper frame 3 of the container body 2 is provided with a central protrusion 4 at a substantially central position in the width direction so as to protrude further from the depth side in the depth direction. It has been.

  Similarly, a pair of end protrusions 5 are provided at positions spaced apart from the central protrusion 4 and the outer side in the width direction so as to protrude further from the back side in the depth direction of the upper frame 3. ing. A hole 11 (see FIG. 6) is formed in the end protrusion 5 so as to be recessed downward.

  Further, each of the pair of end protrusions 5 extends inward in the width direction to a midway position between the center protrusion and the axis (first axis) O1 parallel to the width direction. A lid support shaft 7 having a cylindrical shape is provided.

  The lid 12 has four side plates 12A facing the width direction and the depth direction, and a top plate 12B connected to the upper side, and the upper frame portion 3 of the container body 2 is connected to the outer side in the width direction, both sides in the depth direction, And the opening part 10 is obstruct | occluded by covering from upper direction.

  Further, the lid 12 is provided with a rotation support portion 13 on the back side in the depth direction on the inner side which is the side closing the opening 10. A shaft hole 13 a that is recessed from the outer side to the inner side in the width direction is formed in the rotation support part 13, and the rotation support part 13 includes the center protrusion part 4 and the end protrusion part 5 of the container body 2. And the shaft hole 13a fits into the lid support shaft 7 of the container body 2, and the rotation support portion 13 and the lid support shaft 7, that is, the lid 12 and the container body 2 Is provided so as to be relatively rotatable.

  Further, as shown in FIG. 3, the top plate 12B of the lid 12 is provided with a handle portion 17 that protrudes upward and is formed in a gate shape at a substantially central position in the width direction and the depth direction. Further, in the top plate 12B, from the top surface 12Ba of the top plate 12B, it extends from the position in the width direction where the handle portion 17 is provided to the back side in the depth direction with respect to the handle portion 17. A top plate recess 16 that is recessed downward is formed. Further, the concave bottom surface 16a of the top plate concave portion 16 is an inclined surface that smoothly increases in depth from the near side in the depth direction toward the far side.

  As shown in FIG. 1 to FIG. 4, the rotation restricting portion 20 is located at the front side in the depth direction, and the restricting protrusion 21 provided on the side plate 12A of the lid 12 and the container at the near side position in the depth direction. A protrusion fixing portion 22 is provided across the side plate 2A and the upper frame portion 3 in the main body 2 and presses the restriction protrusion 21 from above when the lid 12 is in the closed position P1.

The restricting protrusion 21 is provided integrally with the side plate 12A on the near side in the depth direction, and is provided with a pair projecting toward the near side in the depth direction with a gap in the width direction at a substantially central position of the side plate 12A.
Moreover, the upper surface 21a facing upward and the lower surface 21b facing downward are inclined surfaces that are inclined upward toward the near side in the depth direction.

  The protrusion fixing portion 22 is provided at a substantially central position in the width direction across the side plate 12A and the upper frame portion 3 at a position facing the near side in the depth direction. The protrusion fixing portion 22 protrudes to the near side in the depth direction across the side plate 12A and the upper frame portion 3 and is provided with a pair of fixing portion mounting portions 23 provided at intervals in the width direction, and the pair of fixing portion attachments. It has the fixed part main-body part 24 attached so that it might be pinched | interposed between parts 23. FIG.

  Each fixed portion mounting portion 23 is formed with a through hole 23a penetrating in the width direction.

  The fixing portion main body 24 has a block shape, and a fixing portion support shaft 25 extending in a rod shape toward the outside in the width direction is provided at the lower ends of both end faces in the width direction. The part support shaft 25 is fitted into the through hole 23 a so that the fixed part support shaft 25 can rotate relative to the fixed part mounting part 23, that is, the fixed part main body part 24 relative to the container main body 2. .

Further, as shown in FIG. 4, the fixing portion main body portion 24 is formed with a concave portion 24 a into which the restricting projection portion 21 is fitted so that the inside is hollowed out from the back side in the depth direction toward the near side. . In this recess 24a, the facing surface 24b that faces and contacts the upper surface 21a of the regulating projection 21 when the regulating projection 21 is fitted, faces the near side in the depth direction at the same inclination angle as the upper surface 21a. The inclined surface is inclined upward.
Then, when the lid 12 is in the closed position P1, the restriction projection 21 is fitted into the recess 24a, whereby the lid 12 is held at the closure position P1 so as to hold down the restriction projection 21 from above.

Here, with reference to FIG. 4, the state of the operation in which the restricting protrusion 21 is fitted into the protrusion fixing portion 22 will be described.
As shown in FIG. 4A, the lid 12 is rotated in the direction of the arrow in the figure from the open position P2 toward the closed position P1.

  Here, in the middle of the upper and lower portions of the concave portion 24a of the fixing portion main body 24, the fixing portion main body portion 24 is formed such that a plate-like spring portion 24c protrudes toward the back side in the depth direction on the inner surface of the concave portion 24a. Are integrally provided. The spring portion 24c extends toward the container body 2 and bends downward. The surface of the spring portion 24c is in contact with the container body 2 at the bent position. 24 gives the biasing force. Therefore, even if an external force is applied to the fixed portion main body 24, the fixed portion main body 24 is returned to the position shown in FIGS. 4A and 4C by this elastic member. In the present embodiment, a pair of spring portions 24c are provided at intervals in the width direction. Moreover, the spring part 24c does not need to be integrated with the fixed part main body part 24, and for example, another elastic member such as a torsion spring may be used.

  Thereafter, as shown in FIG. 4B, the lower surface 21 b of the restricting protrusion 21 comes into contact with the upper surface of the fixed portion main body 24. Here, since the lower surface 21b of the restricting protrusion 21 is an inclined surface, a force acts on the fixing portion main body 24 in a direction away from the container main body 2, and the fixing portion main body 24 smoothly moves to the fixing portion support shaft. Rotate around 25.

  As shown in FIG. 4C, when the restricting projection 21 enters the recess 24a, the position where the upper surface 21a of the restricting projection 21 and the opposing surface 24b are engaged by the spring portion 24c, that is, the fixed portion main body. The portion 24 is rotated to a position where the restricting projection 21 is fixed, and the lid 12 is held at the closed position P1.

  Here, in the fixed state of the restricting protrusion 21 which is the state shown in FIG. 4C, the lid 12 is lifted upward by the handle portion 17, for example. At this time, since the upper surface 21a of the restricting protrusion 21 and the opposing surface 24b of the fixing portion main body 24 are inclined surfaces, a force acts on the fixing portion main body 24 in a direction approaching the container main body 2. The fixed state at the rotation restricting portion 20 is not easily released.

Next, the rotation assisting member 30 will be described.
As shown in FIGS. 1 to 3, the rotation assisting member 30 is provided between the container body 2 and the lid 12, and is an open position where the lid 12 is separated from the closing position P <b> 1 where the lid 12 is close to the container body 2. The lid 12 is rotated with respect to P2.
And in this embodiment, this rotation assistance member 30 is provided in the depth direction in the container main body 2 and the lid | cover 12, and is provided in the position of the both ends of the width direction one each.

  The rotation assisting member 30 is made of, for example, resin or the like, and as shown in FIGS. 5 and 7, a spring holder (first support portion) that is partially inserted into the hole 11 of the container body 2 and supported by the container body 2. ) 31, a spring arm (second support portion) 32 connected to the spring holder 31 and extending away from the spring holder 31, and a torsion spring (elastic member) 33 provided between the spring holder 31 and the spring arm 32. Have.

  The spring holder 31 is formed in the shape of a rectangular parallelepiped and is integrally provided on the upper end of the insertion portion 35 and the insertion portion 35 inserted in the hole portion 11, and the insertion portion 35 is located in the hole portion 11, and in the depth direction. And an arm holding portion 36 extending to the side, and the entire spring holder 31 is L-shaped when viewed in the width direction.

The insertion portion 35 is provided with a support shaft 37 that protrudes outward in the width direction and has a columnar shape centered on an axis (third axis) O2 that is parallel to the width direction.
Here, as shown in FIGS. 5 and 6, the hole 11 of the container body 2 is formed with a notch 11 a into which the support shaft 37 is fitted downward from the opening edge 11 b of the hole 11. ing. And this notch part 11a is formed as the inclined surface 11c which expands in the width direction as the surface which faces the width direction goes down so that the upward movement when the support shaft 37 is fitted is restricted. Has been.
Furthermore, the dimension in the depth direction of the hole portion 11 is formed larger than that of the insertion portion 35, and a space in which the insertion portion 35 can operate to some extent in the depth direction is formed in the hole portion 11 (see FIG. 7). . Moreover, the depth of the hole part 11 is a dimension which does not contact a lower end in the state in which the insertion part 35 was inserted.

  Further, by inserting the insertion portion 35 into the hole portion 11 in this way, the support shaft 37 is fitted into the notch portion 11a, and the spring holder 31 is rotated around the axis O2.

  The arm holding portion 36 includes three side plates 36A facing both sides in the width direction and the front side in the depth direction, and a bottom plate 36B connected to the lower side thereof, and an insertion portion 35 extends from a lower surface 36Ba of the bottom plate 36B. . Further, the side plate 36A facing both sides in the width direction is provided with a side plate protruding portion 42 that partially protrudes upward at the end on the back side in the width direction. And the through-hole 43 penetrated in the width direction is formed in the position where this side-plate protrusion part 42 was provided.

The arm holding portion 36 has the lower surface 36Ba of the bottom plate 36B in a state where the insertion portion 35 is inserted into the hole portion 11 and the support shaft 37 is fitted into the notch portion 11a and the insertion portion 35 extends in the vertical direction. It will be in the state which contacted the upper part of the upper frame part 3 of the container main body 2. FIG. Here, at the position where the arm holding part 36 comes into contact, the upper frame part 3 is partially cut away from the upper part so that the arm holding part 36 fits into the upper frame part 3.
In this way, the entire spring holder 31 is prevented from rotating to the near side in the depth direction around the axis O2 (see FIG. 8).

  The spring arm 32 has a rectangular plate shape that extends away from the arm holding portion 36. Further, the lower end portion of the spring arm 32 is notched inward in the width direction, and the width direction dimension is reduced. At this position, an axis that protrudes outward in the width direction and is parallel to the width direction (second axis) An arm rotation shaft 45 having a columnar shape centered on O3 is provided. And while the lower end part of the spring arm 32 is arrange | positioned so that it may be pinched | interposed into the side plate 36A and the side plate protrusion part 42 of the arm holding | maintenance part 36 from the width direction, the arm rotating shaft 45 may be fitted in the through-hole 43, A spring arm 32 is attached to the spring holder 31 so as to be rotatable about an axis O3.

  Further, the spring arm 32 is provided so as to extend upward so as to be perpendicular to the extending direction of the arm holding portion 36 in the width direction in a natural state where no external force is applied. The arm groove 32a is formed so as to be recessed toward the back side in the width direction. In the present embodiment, two arm grooves 32a are formed at intervals in the width direction. Further, in this embodiment, the spring arm 32 is not rotatable beyond an angle that is perpendicular to the direction in which the arm holding portion 36 extends. More specifically, the lower end portion of the spring arm 32 interferes with the bottom plate 36B of the arm holding portion 36 at this right-angled position so that the angle is more than that, that is, the arm holding portion 36 is more than the right-angled position. The spring arm 32 is not rotated in the direction away from the spring.

  The torsion spring 33 is provided so as to be accommodated in the arm groove 32a of the spring arm 32, and one end is in contact with the upper surface 36Bb of the bottom plate 36B of the arm holding portion 36 and the other end is in contact with the bottom surface of the arm groove 32a. It is an elastic member that applies an urging force to 32 in a direction away from the arm holding portion 36.

  As described above, the rotation assisting member 30 is provided completely separately from the container body 2 and the lid 12, and the arm holding part 36 is inserted and fitted into the hole 11 of the container body 2. It becomes detachable by being done.

Next, referring to FIG. 8, the opening / closing operation of the rotation assisting member 30 and the lid 12 will be described.
As shown in FIG. 8A, at the closing position P <b> 1 where the lid 12 closes the opening 10, the restricting protrusion 21 of the rotation restricting portion 20 is pressed from above by the protrusion fixing portion 22, and the lid 12. Is fixed. In this state, the spring arm 32 is pivoted about the axis O2 toward the near side in the depth direction so that the spring arm 32 is tilted toward the near side in the depth direction, and the spring arm 32 is the top plate 12B of the lid 12. In contact with the inner surface 12Bb. At this time, a biasing force is applied to the lid 12 by the torsion spring 33 via the spring arm 32.
Here, the spring arm 32 is in contact with the top plate 12B of the lid 12 at the tip, and the contact position on the inner surface 12Bb of the top plate 12B is near the center position in the depth direction of the top plate 12B.

When the rotation restricting portion 20 is opened at such a closed position P1, that is, when the protrusion fixing portion 22 is rotated to the near side in the depth direction around the fixing portion support shaft 25, the restricting protrusion 21 is opened. As shown in FIG. 8 (b), the lid 12 is lifted by the urging force of the torsion spring 33, and until the lid 12 opens the opening 10 so as to be separated from the container body 2 about the axis O1. Rotate.
Here, in the present embodiment, the lid 12 at the open position P2 is disposed at a position rotated 90 degrees from the closed position P1, and further locked at the position on the side plate 2A on the back side of the container body 2 in the depth direction. Has been to stop. However, this 90 degrees is an example, and this angle can be selected variously.

  On the other hand, in the open position P2, the spring arm 32 stops in a state of extending upward, and thereby the spring arm 32 and the lid 12 are separated in the depth direction and become in a non-contact state.

  Then, as shown in FIG. 8C, the spring arm 32 is manually pushed in the depth direction to rotate the spring arm 32 about the axis O <b> 2 of the support shaft 37, and the inner surface of the top plate 12 </ b> B of the lid 12. Contact 12Bb.

  In such a trash box 1, the spring arm 32 of the rotation assisting member 30 is not fixed to the lid 12, and pushes up the lid 12 in a contact state. In other words, the rotation assisting member 30 is separate from the lid 12. For this reason, as shown in FIG. 8B, the lid 12 and the spring arm 32 are separated from each other at the open position P2. Note that the spring arm 32 may directly shift from the state shown in FIG. 8A to the state shown in FIG.

  Therefore, when the lid 12 rotates from the closed position P1 to the open position P2, even if the lid 12 tries to rotate beyond the open position P2 due to the momentum of rotation, the rotation assisting member 30 is used. The tensile force from the lid 12 does not act on. For this reason, the rotation assisting member 30 does not receive a force that rotates beyond the movable limit. Therefore, deterioration and damage of the rotation assisting member 30 can be suppressed.

  Further, the spring arm 32 moves away from the lid 12. Therefore, the urging force from the spring arm 32 does not continuously act on the lid 12 beyond the open position P2, so that the trash can 1 can be prevented from being overturned by the rotational force of the lid 12, and the durability is improved. As a result, usability can be improved.

  Furthermore, since the rotation auxiliary member 30 is separate from the container body 2 and the lid 12, only the rotation auxiliary member 30 can be easily replaced. In particular, by repeatedly opening and closing the lid 12, even if a load is repeatedly applied to the rotation assisting member 30, and deterioration or damage occurs, the trash can 1 can be continuously used only by replacing the rotation assisting member 30. , Leading to improved user usability.

  Further, for example, the rotation assisting member 30 can be replaced with another rotation assisting member having a torsion spring having a different spring constant, so that the opening / closing speed of the lid 12 can be appropriately selected, and the spring arm 32 and the arm holding portion 36 can be selected. By using a rotation assisting member having a different attachment angle between the opening and closing position, the opening / closing position of the lid 12 can be selected as appropriate, and this also leads to improved usability.

  Further, as shown in FIGS. 8B and 8C, when the lid 12 is located at the open position P2, the spring arm 32 of the rotation assisting member 30 is separated from the top plate 12B of the lid 12, Even when it is located between the container body 2 and the lid 12, the spring arm 32 is brought into contact with the top plate 12 </ b> B of the lid 12 by easily turning the rotation auxiliary member 30 around the axis O <b> 2 manually. Can be moved.

  Therefore, even if the rotation assisting member 30 is provided as a separate body, it does not obstruct the putting in and out of the container main body 2, and the usability can be improved in this respect as well.

In addition, since the notched portion 11a of the hole 11 of the container body 2 is formed with the inclined surface 11c, the insertion portion 35 is inserted into the hole 11 and the spring holder 31 is installed. It is possible to regulate upward slipping. For this reason, even if the rotation auxiliary member 30 is detachably provided, the rotation auxiliary member 30 can be prevented from easily falling off while the lid 12 is opened and closed.
In addition, when inserting the insertion part 35 in the hole part 11, it inserts so that the support shaft 37 may be screwed into the notch part 11a. In particular, if the container body 2 and the rotation assisting member 30 are made of resin or the like, such work is easy.

Further, in the rotation assisting member 30, the spring arm 32 extends to the center position in the depth direction of the lid 12, so the distance from the axis O <b> 3 of the arm rotation shaft 45 is long, and the spring force of the torsion spring 33 is increased. Even if it is made smaller, the lid 12 can be sufficiently lifted by the lever principle.
On the other hand, even when the lifted lid 12 is about to return to the closing position P1 by rebounding, the rotation assisting member 30 can suppress such movement of the lid 12.

  Further, for example, by adjusting the length dimension of the spring arm 32 in consideration of the weight of the lid 12, the torsion springs 33 having different spring constants can be prepared for the trash bins having different sizes and shapes. The turning power can be adjusted. For this reason, the torsion spring 33 can be reduced in cost by sharing parts.

  Further, since the rotation assisting member 30 is detachable, with respect to an angle formed between the spring arm 32 and the arm holding portion 36, for example, a member that the spring arm 32 rotates only up to 45 degrees is used. 12 can be stopped in a state of being rotated 45 degrees. That is, since the opening position P2 of the lid 12 can be freely selected by adjusting the attachment angle of the spring arm 32 of the rotation assisting member 30, this also leads to improved usability.

  Here, the rotation assisting member 30 may employ a structure in which the angle formed between the spring arm 32 and the arm holding portion 36 can be varied. In this case, the opening position P2 of the lid 12 can be easily selected, which leads to further improvement in usability.

  According to the trash can 1 of the present embodiment, the rotation assisting member 30 is a detachable separate body, which facilitates replacement and improves usability, and the rotation assisting member 30 when the lid 12 is opened and closed. Since the load on can be reduced, the durability can be improved.

Although the embodiment of the present invention has been described in detail above, some design changes can be made without departing from the technical idea of the present invention.
For example, the rotation assisting member 30 may apply an urging force to the lid 12 in a state where the lid 12 is positioned at least at the closing position P1. That is, the rotation assisting member 30 may be in non-contact with or in contact with the lid 12 at a position between the closing position P1 and the opening position P2. However, it is necessary to consider the spring constant of the torsion spring 33, the weight of the lid 12, and the like so that the lid 12 is lifted to a state where at least the inside of the container body 2 can be accessed.

  Further, the rotation assisting member 30 may not be configured to be inserted into the hole portion 11 and may be installed so as to be detachably fitted to at least the container body 2. For example, the insertion portion 35 may not be provided, and the support shaft 37 may be provided in the arm holding portion 36 and the support shaft 37 may be installed in the notch portion 11a.

  Further, the rotation assisting member 30 may not necessarily be rotatable about the axis O2 of the support shaft 37.

  Further, in the rotation assisting member 30, for example, a leaf spring may be used instead of the torsion spring 33, and any elastic member may be used as long as an urging force can be applied to the lid 12.

  Moreover, the rotation assistance member 30 does not need to be two like the above-mentioned embodiment, and at least one should just be provided.

  In the above-described embodiment, the trash can 1 has been described. However, the trash can 1 may be used for other containers such as a storage case, and is not limited to the container. Is also applicable.

DESCRIPTION OF SYMBOLS 1 ... Trash 2 ... Container main body (1st member) 2a ... Concave part 3 ... Upper frame part 4 ... Center part protrusion part 5 ... End part protrusion part 7 ... Lid support shaft 10 ... Opening part 11 ... Hole part 11a ... Notch part 11b ... Opening edge 11c ... Inclined surface 12 ... Lid (second member) 13 ... Rotating support part 13a ... Shaft hole 16 ... Top plate recessed part 16a ... Recessed bottom face 17 ... Handle part 20 ... Rotation restricting part 21 ... Restriction protrusion Part 21a ... Upper surface 21b ... Lower surface 22 ... Projection fixing part 23 ... Fixed part mounting part 23a ... Through hole 24 ... Fixed part main body part 24a ... Recessed part 24b ... Opposing surface 24c ... Spring part 25 ... Fixed part support shaft 30 ... Rotation assist Member 31 ... Spring holder (first support part) 32 ... Spring arm (second support part) 32a ... Arm groove 33 ... Torsion spring (elastic member) 35 ... Insertion part 36 ... Arm holding part 37 ... Support shaft 42 ... Side plate protrusion part 43 ... Through hole 45 ... Arm rotation axis O1 ... Axis (first axis) O2 ... Axis (third axis) O3 ... Axis (second axis) P1 ... Closed position (first position) P2 ... Open position (second) position)

Claims (3)

A second member provided between a first member and a second member connected to be rotatable relative to each other about the first axis, and spaced apart from a first position where the second member approaches the first member; A rotation assisting member for rotating the second member toward the position,
A first support part detachably fitted to the first member;
The second support is connected to the first support portion so as to be rotatable about a second axis parallel to the first axis and extends in a direction perpendicular to the second axis, and the second member is at least in the first position. A second support portion that contacts the second member in a state;
It is provided between the first support part and the second support part, and at the position where the second support part contacts the second member, the second support part is interposed via the second support part. An elastic member for applying a biasing force to the second member;
A rotation assisting member comprising:   2. The rotation assisting member according to claim 1, wherein the first support portion rotates around a third axis parallel to the second axis while being fitted to the first member. The first member is a container body in which an opening is formed,
The second member is a lid that opens and closes the opening.
The first position is a position where the opening is closed;
The second position is a position where the opening is opened,
In a state where the container body and the lid are in the first position, a rotation restricting portion for restricting relative rotation between the container body and the lid;
The rotation assisting member according to claim 1 or 2,
A container comprising:

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