JP2016172585A - Lid body attaching/detaching structure and storage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continue an excellent locking state by suppressing abrasion of a structure for locking.SOLUTION: In a lid body attaching/detaching structure in which an outer peripheral surface 31a of a cylindrical overlapped wall part 31 of a body 13 and an inner peripheral surface 51a of a cylindrical overlapped wall part 51 of a lid body 15 face each other, a regulation part 32 which protrudes in the thickness direction and regulates relative movement of the inner peripheral surface 51a of the lid body 15 and a locking reception part 33 which protrudes in the thickness direction are formed on the outer peripheral surface 31a of the body 13, a sliding part 52 which protrudes in the thickness direction and slides on the regulation part 32 and a locking protrusion 53 which protrudes in the thickness direction and is locked to the locking reception part 33 are formed on the inner peripheral surface 51a of the lid body 15, motion conversion surfaces 34, 54 which can convert the straight motion of putting the lid body 15 on the body 13 into the motion for causing the locking protrusion 53 to approach the locking reception part 33 and be directed to the lower part of the locking reception part 33 are formed on the regulation part 32 and the sliding part 52, and the locking protrusion 53 is locked to the locking reception part 33 from below.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a structure for making a lid detachable in a container having a main body and a lid, and more particularly to a lid detaching structure that allows a lid to be closed only by pressing.

  The lid attaching / detaching structure that can close the lid simply by pressing allows the lid to automatically rotate when pressed to obtain a predetermined locking state. This structure is formed on opposite circumferential surfaces of cylindrical overlapping walls formed on the main body and the lid so as to overlap each other when the lid is closed.

  The structure disclosed in Patent Document 1 below is an example. The structure of Patent Document 1 includes a lock portion that protrudes inward on the inner peripheral surface of the overlapping wall portion of the lid, a lock receiving portion that protrudes outward on the outer peripheral surface of the overlapping wall portion of the main body, and a guide portion. The

  The lock part of the lid is a round protrusion and is formed in a plurality in the circumferential direction. The guide part of the main body alternately has peaks and valleys and has a corrugated shape so that a part of the overlapped wall part is thickened, and similarly, a part of the overlapped wall part is thickened. A lock receiving portion for locking the lock of the lid is provided at a portion of the corrugated portion facing the rhombus, which has a rhombus portion that protrudes like this and forms a substantially rhombus shape above the valley portion. The lock receiving portion has two protrusions so as to sandwich the lock portion from side to side.

  In the lid attaching / detaching structure having such a configuration, the lock part also serves as a guided part guided by the guide part.When the lid is put on the main body, the lock part is guided by the guide part and the lid is It rotates and gets over either one of the left and right projections in the lock receiving portion and is locked between the lock receiving portions. When removing the lid, when the lid is rotated and the lock portion is removed from the lock receiving portion, the lid moves in a direction away from the main body while the lock portion is guided by the guide portion.

  The lid can be locked simply by covering and pressing the lid, and if it rotates to either the left or right, the lock is released and the lid can be removed, so that the lid can be easily attached and detached.

  However, the lock part of the lid also serves as a guided part, and wears by rubbing against the guide part when attaching to and detaching from the main body, and wears against the lock receiving part. The parts to be worn are similar parts, and the lock part is a round protrusion, so that the peripheral surface and the tip part are particularly easily worn. For this reason, it is difficult to maintain a good locking state. Molding accuracy is also required. Also, when the lid is pressed and locked, the rotation of the lid is uniform, and when locking the locking part, the locking part is brought into contact with the protrusion of the lock receiving part, and from this point However, there was a difficulty that it was easy to wear.

JP 2010-23909 A

  Therefore, the main object of the present invention is to be able to suppress wear and maintain a good locked state.

  Means therefor is a lid attaching / detaching structure formed on opposing circumferential surfaces of a cylindrical overlapping wall portion of a main body and a lid, and the overlapping wall portion is provided on one of the opposing circumferential surfaces. A restricting portion that protrudes in the thickness direction of the other and restricts relative movement of the other circumferential surface, and a latch receiving portion that protrudes in the thickness direction of the overlapping wall portion are formed, on the other of the circumferential surfaces facing each other, A sliding portion that projects in the thickness direction of the overlapping wall portion and slides on the regulating portion, and a locking projection that protrudes in the thickness direction of the overlapping wall portion and engages with the locking receiving portion are formed. The linear movement of covering the lid on the body on the restricting portion and the sliding portion moves the locking protrusion toward the locking receiving portion and directs it to the lower portion of the locking receiving portion. It is a lid attachment / detachment structure in which a motion conversion surface that enables conversion is formed.

  In this configuration, when the lid is placed on the main body and pushed in the closing direction, that is, in the direction of fitting into the main body, the sliding portion of the lid slides on the regulating portion of the main body and rotates the lid, The part is relatively moved toward the latch receiving part. At this time, the movement converting surfaces of the restricting portion and the sliding portion allow the locking projection to approach the locking receiving portion and to be directed to the lower portion of the locking receiving portion. The locking projection is locked to the locking receiving portion so as to sink under the locking receiving portion, and the locking projection is locked to the locking receiving portion in both the separating direction and the circumferential direction. State is maintained.

  When removing the lid from the main body, if the lid is rotated in the direction opposite to the direction rotated when the lid is locked, the motion conversion surface of the restricting portion and the sliding portion causes the locking projection to move away from the locking receiving portion. Remove the lid and push it away from the main body.

  Another means for solving the problem is a storage container provided with the lid attaching / detaching structure.

  According to the present invention, since the sliding portion serves as a guide for the rotation of the lid, it is possible to suppress the load applied to the locking projection, and the locking projection is locked through the lower portion of the locking receiving portion. The wear of the locking projection can be suppressed.

The perspective view of the isolation | separation state of a main body and a cover body. The partial cross section front view of the state which inserted the cover. The front view of the state which isolate | separated the main body and the cover body. The enlarged view of the principal part. Sectional drawing which shows the shape of the thickness direction of a latching protrusion and a latching receiving part. Explanatory drawing of an action state. Explanatory drawing of an action state. Explanatory drawing of an action state. The explanatory view of the example of the sliding surface of other shapes, and its operation state.

An embodiment for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of the storage container 11 in an exploded state, in which the main body 13 and the lid 15 constituting the storage container 11 are separated. The storage container 11 has a cylindrical shape as a whole, and stores various articles such as cosmetics. Both the main body 13 and the lid 15 are made of synthetic resin. The shape and size of the main body 13 are appropriately formed according to the article to be stored, except for the portion to which the lid 15 is attached. You may have a storage part larger than the example of illustration, and the storage part of a shape different from the example of illustration.

  The main body 13 has a cylindrical shape with a bottom and an upper end that is open, and has a cylindrical overlapping wall portion 31 to which the lid 15 is attached at the upper end portion. The lid body 15 is externally fitted to the main body 13 and has a cylindrical overlapping wall portion 51 that overlaps the outer periphery of the overlapping wall portion 31 of the main body 13. The heights of the overlapping wall portions 31 and 51 are appropriately set so that a desired fitting depth can be obtained. When the lid 15 is fitted to the main body 13, the circumferential surface 31 a (hereinafter referred to as “outer circumferential surface 31 a”) of the overlapping wall portion 31 of the main body 13 and the inner periphery of the overlapping wall portion 51 of the lid 15. The surfaces 51a (hereinafter referred to as “inner peripheral surface 51a”) face each other. At the lower end position of the overlapping tube portion 31 in the main body 13, there is a closing surface 31 b that is opposed to the lower end surface 51 b of the overlapping wall portion 51 of the lid 15.

  In order to maintain the fitted state of the lid 15, one of the opposing circumferential surfaces 31 a, 51 a, that is, the outer peripheral surface 31 a of the overlapping wall portion 31 of the main body 13, is projected in the thickness direction of the overlapping wall portion 31. A restricting portion 32 for restricting the relative movement of the circumferential surface 51a, that is, the inner peripheral surface 51a of the overlapping wall portion 51 of the lid body 15, and a latch receiving portion 33 that similarly protrudes in the thickness direction of the overlapping wall portion 31, are formed. A sliding portion that protrudes in the thickness direction of the overlapping wall portion 51 and slides on the regulating portion 32 on the other circumferential surface 31a, 51a facing each other, that is, on the inner peripheral surface 51a of the overlapping wall portion 51 of the lid 15. 52 and a locking projection 53 that protrudes in the thickness direction of the overlapped wall portion 51 and locks to the locking receiving portion 33 is formed. A plurality of sets of the restricting portion 32 and the locking receiving portion 33, and the sliding portion 52 and the locking protrusion 53 are formed at regular intervals in the circumferential direction of the outer peripheral surface 31a or the inner peripheral surface 51a.

  FIG. 2 is a cross-sectional view showing a state in which the lid 15 is fitted to the main body 13. When the locking projection 53 is locked to the locking receiving portion 33, the lid 15 is intentionally rotated in one direction. The lid 15 is not opened unless it is rotated counterclockwise. The locking projection 53 is locked to the lower portion of the locking receiving portion 33.

  The regulating portion 32 of the main body 13 and the sliding portion 52 of the lid body 15 are slid to each other so that the main body 13 is covered with the lid body 15, and the locking projection 53 is moved to the locking receiving portion 33. The motion conversion surfaces 34 and 54 are formed so as to allow the movement to be moved toward the lower portion of the latch receiving portion 33 and to be converted into a motion directed to the lower portion.

  As shown in FIG. 3 which is a front view of the separated state of the main body 13 and the lid body 15, the restricting portion 32 of the main body 13 is formed to extend upward along the outer peripheral surface from the lower end of the overlapping wall portion 31. ing. The thickness protruding from the outer peripheral surface of the restricting portion 32 is a thickness necessary for the end surface formed by the protrusion to function as the restricting portion 32. The motion conversion surface 34 of the restricting portion 32 is a curved restricting surface 35. The restricting surface 35 has a substantially flat triangular upper end 35a in front view, and one side of the upper end 35a in the left-right direction. The shape has a gently inclined part 35b on the upper side of the overlapping wall part 31 and a steeply inclined part 35c on the lower side suddenly falling from the tip of the gently inclined part 35b. The upper end portion 35a, the gently inclined portion 35b, and the steeply inclined portion 35c are smoothly continuous.

  The sliding part 52 and the locking projection 53 shown by broken lines in the lid 15 of FIG. 3 show only the front side corresponding to the regulation part 32 and the locking receiving part 33 shown in the main body 13. ing.

  The above-described locking receiving portion 33 is formed below the right side of the upper end portion 35a of the restriction surface 35 when viewed from the front. The latch receiving portion 33 is integral with the restriction portion 32 having the restriction surface 35 and has a substantially semicircular shape when viewed from the front. As shown in FIG. 4, which is an enlarged view of the main part, the latch receiving portion 33 is a guide that projects in an arc shape in the direction in which the latch projection 53 approaches when the lid 15 is closed, that is, on the right side of the front view. The guide portion 33a has a linear receiving portion 33b that is inclined slightly upward from the lower end of the guide portion 33a. The lower end position of the guide portion 33a extends beyond the upper end position, that is, the right side of the front view. The guide portion 33a may be a linear inclined surface that is inclined to the right in front view as the lower end.

  An inclined slidable contact surface 33c is formed at the protruding tip of the locking receiving portion 33 having such a front view shape. The inclination of the slidable contact surface 33c is a relative movement direction of the locking projection 53, that is, a direction intersecting with a direction from diagonally right upward to diagonally downward to the left, specifically, substantially orthogonal, as shown in FIG. Thus, the slope becomes thinner as it goes downward. FIG. 5 shows a state seen obliquely from the upper right in the front view of FIG.

  In the vicinity of the lock receiving portion 33, an inclined surface 36 is formed which is inclined at an angle that prevents the lock protrusion 53 from further rotating from the position where the lock protrusion 53 is locked to the lock receiving portion 33. As shown in FIG. 4, the inclined surface 36 is formed between the end on the right side of the upper end portion 35a of the restricting surface 35 and the latch receiving portion 33, and the rotation direction when the lid 15 is rotated to the right ( Inclined in the downward direction (left side as viewed from the front), the whole is linear.

  As shown in FIG. 3, the sliding portion 52 of the lid 15 is formed so as to extend downward from the upper end of the overlapping wall portion 51 along the inner peripheral surface 51a. The thickness protruding from the inner peripheral surface 51 a of the sliding portion 52 is a thickness necessary for the end surface formed by the protrusion to slide on the regulating portion 32.

  The motion conversion surface 54 of the sliding portion 52 is not a dot shape but a linear, specifically, a curved sliding surface 55. The sliding surface 55 has an inverted triangular lower end 55a that is substantially flat when viewed from the front. As shown in FIG. 4, the lower end portion 55 a rotates linearly on one side in the left-right direction, specifically on the left side when viewed from the front, so that the lower end portion 55 a is a straight linear shape extending obliquely upward. It has an inclined portion 55b, and has a curved curved inclined portion 55c extending obliquely upward on the other side in the left-right direction and on the right side of the front view. The curved inclined portion 55c has a shape different from that of the regulating surface 35 of the regulating portion 32 of the main body 13, and draws a smoothly curved smooth curve. The shape of the curved inclined portion 55 c is related to the regulating surface 32 of the main body 13, as shown by the phantom line in FIG. It is set so that a gap 55d is formed between the rear portion of the curved inclined portion 55c, that is, the upper portion, and the portion of the regulating surface 35 that this portion opposes when it hits the locking receiving portion 33.

  Since the gap 55d is provided and the lower side of the regulation surface 35 is the steeply inclined portion 35c, the motion conversion surfaces 34 and 54 of the regulation portion 32 of the main body 13 and the sliding portion 52 of the lid body 15 are connected to the lid body 15 of the main body 13. It is possible to convert the linear motion to cover the movement more favorably into a movement in which the locking projection 53 approaches the locking receiving portion 33 and is directed to the lower portion of the locking receiving portion 33. Further, this conversion is supported by the guide portion 33a of the latch receiving portion 33, and further excellent conversion can be performed.

  In order to prevent the locking projection 53 from further rotating from the position locked to the locking receiving portion 33 beyond the lower end portion 55a of the sliding surface 55 in front view, the regulation of the main body 31 is restricted. A contact surface 56 that contacts the inclined surface 36 formed in the portion 32 is formed through a bay portion 57 that is recessed to the right in front view. The contact surface 56 is slanted downward in the direction of rotation (left side in front view) when the lid 51 is rotated to the right, and is linear.

  A locking projection that engages with the locking receiving portion 33 in the vicinity of the contact surface 56, specifically, on the left side of the sliding surface 55 when viewed from the front, that is, on the rotation tip side when the lid 51 is rotated to the right. 53 is formed. The locking projection 53 is formed independently of the sliding portion 52, and a spacing space 58 is formed between them. By making them independent, very little flexibility is imparted to the locking projection 53.

  The locking projection 53 has a substantially cylindrical shape that is distorted in front view, and has a guided portion 53 a that faces the guiding portion 33 a of the locking receiving portion 33 on the rotation tip side. The guided portion 53a has a shape extending in an arc shape. At the upper end of the locking projection 53, there is a linear locking surface 53b whose rotational tip side is slightly inclined upward. The locking surface 53 b is a portion that is locked to the receiving portion 33 b of the locking receiving portion 33 of the main body 13. At the lower end of the locking projection 53, a regulated portion 53 c is formed that can be slid on the right side of the upper end portion 35 a of the regulating surface 35 of the main body 13. The regulated portion 53c has the same inclination as the portion of the restriction surface 35 on the right side of the upper end portion 35a as viewed from the front, and is on the extended line of the linear inclined portion 55b of the sliding surface 55.

  An inclined sliding contact surface 53d is formed at the protruding tip of the locking projection 53 as shown in FIG. The slope of the slidable contact surface 53d is inclined in the same direction as that of the slidable contact surface 33c of the latch receiving portion 33, and the slope becomes thinner as it goes downward.

  The protruding heights of the sliding contact surface 33c of the locking receiving portion 33 and the sliding contact surface 53d of the locking projection 53 are heights that interfere with each other as shown in FIG. The amount of overlap is appropriately set according to the desired fitting hardness and the like.

  As described above, a plurality of sets of the restricting portion 32 and the locking receiving portion 33, and the sliding portion 52 and the locking protrusion 53 are formed at regular intervals. When the cover 15 is put on the main body 13, the size and the interval between them are always the sliding portion 52 of the cover 15 before the locking protrusion 53 of the cover 15 is locked to the lock receiving portion 33 of the main body 13. The locking projection 53 is set so as to contact the restricting portion 32 of the main body 13.

  Along with such a lid attaching / detaching structure, a seal structure is formed between the main body 13 and the lid 15. The sealing structure is to prevent leakage even when liquid is stored in the main body 13. As shown in FIG. 2, the upper end 31 c of the overlapping wall portion 31 of the main body 13 and the inner peripheral surface 51 a of the lid 15 are formed. It is comprised by the inclined sealing surface 51c formed in the upper-end corner part. The upper end 31c and the inclined sealing surface 51c of the overlapping wall portion 31 are set so that the two interfere appropriately when the lid 15 is fixed by the lid attaching / detaching structure described above.

  In the lid attachment / detachment structure configured as described above, the lid 15 can be closed in two ways. One is a method in which the main body 13 is covered with the lid 15 and rotated to the right, and the other is a method in which the main body 13 is covered with the lid 15 and pressed.

  The closing operation of the lid will be described with reference to FIGS. FIG. 6 and FIG. 7 show what is engaged and disengaged on the front side.

  In either case of the two ways of fitting, first, the lid 15 is put on the main body 13. As shown in FIG. 6A, when the cover 15 is put on, how the restricting portion 32 and the locking receiving portion 33 of the main body 13 and the sliding portion 52 and the locking protrusion 53 of the lid 15 are arranged. May be in a proper positional relationship. By covering the lid 15, the circumferential direction of the lid 15 with respect to the main body 13 in any positional relationship as shown by the phantom lines in FIG. As shown in c), the position of the sliding portion 52 and the locking projection 53 of the lid 15 is regulated at a position where it is accommodated between the regulating portions 32. This position regulation is performed by the sliding surface 55 of the sliding part 52 of the lid 15 and the regulated part 53 c of the locking projection 53 coming into contact with the regulating surface 35 of the regulating part 32 of the main body 13 from above.

  When the lid 15 is rotated to the right or the lid 15 is pressed against the main body 13 from the state in which the sliding portion 52 and the locking projection 53 of the lid 15 are accommodated between the restricting portions 32, FIG. As shown to (a), the cover body 15 makes the fitting depth with respect to the main body 13 deep. The sliding portion 52 is in sliding contact with the gently inclined portion 35 b of the restricting surface 35 of the restricting portion 32, and the locking protrusion 53 hits the locking receiving portion 33.

  Subsequently, when the lid body 15 is further rotated to the right or the lid body 15 is further pressed against the main body 13 side, the locking projection 53 of the lid body 15 is moved to the main body as shown in FIG. As shown in FIG. 7 (c), the locking projection 53 passes through the lower portion of the locking receiving portion 33 from the bottom to the lower portion of the locking receiving portion 33 while being in sliding contact with the 13 locking receiving portions 33. Lock.

  At the time of this locking, as shown in FIG. 8, when the lid body 15 is rotated, the sliding projection 52 is brought close to the locking receiving portion 33 while the sliding portion 52 is regulated by the regulating portion 32, and When the portion 53 hits the latch receiving portion 33, the mode of the motion conversion surface 34 having the gap 55d and the steeply inclined portion 35c, and the latch receiving portion 33 having the guiding portion 33a and the guided portion 53a are involved. Due to the form of the stop protrusion 53, the lock protrusion 53 approaches the lock receiving part 33 and is well oriented to the lower part of the lock receiving part 33 and displaced. Since the locking projection 53 is independent, the locking receiving portion 33 has the guide portion 33a, and the locking projection 53 has the guided portion 53a. Therefore, the locking projection 53 is directed and displaced more smoothly.

  Similarly, when the lid 15 is pressed straight against the main body 13, the lid 15 rotates to the right with the sliding portion 52 being regulated by the regulating portion 32 by the pushing operation, and the locking projection 53 is locked. When approaching the receiving portion 33 and when the locking projection 53 hits the locking receiving portion 33, the mode of the motion conversion surface 34 having the gap 55d and the steeply inclined portion 35c, and the locking receiving portion 33 and the locking portion Due to the form of the protrusion 53, the locking protrusion 53 approaches the locking receiving portion 33 and is well directed to the lower portion of the locking receiving portion 33 and displaced. Since the locking projection 53 is independent, the locking receiving portion 33 has the guide portion 33a, and the locking projection 53 has the guided portion 53a. Therefore, the locking projection 53 is directed and displaced more smoothly.

  As indicated by phantom lines in FIG. 8, after the locking projection 53 approaches the locking receiving portion 33, it receives a reaction force by sliding contact between the guiding surface 33a and the guided surface 53c, and this is converted into the motion converting surface 34. , 54 and the locking projection 53 itself are absorbed. As a result, the locking projection 53 is slightly displaced and retracted, and by further rotation or pressing, the sliding portion 52 moves relative to the locking portion 53 while being regulated by the regulating portion 32. The lock receiving portion 33 is moved over the lower portion of the portion 33 so that the lock receiving portion 53 is engaged with the receiving surface 33 b of the lock receiving portion 33. Since the motion converting surface 34 (regulating surface 35) on the main body 13 side has the steeply inclined portion 35c, the motion converting surface 54 (sliding surface 55) on the lid 15 side that has slid on the gently inclined portion 35b. ) Suddenly decreases in rotation and falls downward, and the above-described locking is performed.

  The locking projection 53 is locked to the locking receiving portion 33 from below, and the locking surface 53b and the receiving surface 33b are inclined so as to become higher toward the right side in the front view, so that the lid 15 is separated. In addition, the locked state can be maintained in the direction of rotation to the left. With respect to the direction in which the lid 15 is rotated to the right, the inclined surface 36 of the restricting portion 22 and the abutting surface 56 of the sliding portion 52 are in contact with each other, thereby preventing the lid 15 from rotating in the right direction. .

  Thus, when the lid attaching / detaching structure is in the lid fitting state, the upper end 31c of the overlapping wall portion 31 of the main body 13 and the inclined sealing surface 51c of the lid 15 are in contact with each other, and the lid 15 is attached to the main body. The latching projection 53 and the latching receiving portion 33 of the lid attaching / detaching structure are brought into strong contact with each other by urging in a direction away from 13.

  When removing the lid 15, the lid 15 is rotated counterclockwise against the force that holds the latching protrusion 53 and the latch receiving portion 33. Due to the rotation of the lid 15, the locking protrusion 53 gets over the lower part of the locking receiving portion 33 due to the flexibility of the locking protrusion 53 and the deformation tolerance of the motion conversion surfaces 34 and 54. The lid body 15 is abruptly separated from the main body 13 by the sliding of the gently inclined portion 35b and the curved inclined portion 55c and the lower end portion 55a of the sliding surface 55 by the movement converting surfaces 34 and 54. Move in the direction.

  The locking projection 53 has the flexibility of the locking projection 53, the sliding contact surfaces 33c, 53d, etc., both when the locking projection 53 is locked to the locking receiving portion 33 and when it is detached from the locking receiving portion 33. Due to the shape of the portion 53 and the locking receiving portion 33 and the presence of the motion conversion surfaces 34 and 54, an excessive load is not applied to the locking protrusion 53 and the locking receiving portion 33. In particular, since the slidable contact surfaces 33c and 53d are inclined in the same direction intersecting with the moving direction of the locking projection 53, wear can be suppressed unlike the conventional overcoming for locking. For this reason, the local abrasion at the time of attachment or detachment of a cover body can be suppressed as much as possible, and a favorable latching state can be maintained.

In correspondence between the configuration of the present invention and the above-described configuration,
The inner peripheral surface of the present invention corresponds to the aforementioned outer peripheral surface 31a and inner peripheral surface 51a,
The above configuration is one form for carrying out the present invention, and the present invention is not limited only to the above-described configuration, and other configurations can be adopted.

  For example, in the above-described configuration, the main body 13 is provided with the restricting portion 32 and the locking receiving portion 33 and the sliding body 52 and the locking protrusion 53 are provided in the lid body 15. The lid body 15 may be provided with the sliding portion 52 and the locking projection 53 provided on the main body 13. Further, the restricting portion 32 and the locking receiving portion 33 can be provided on the inner peripheral surface, and the sliding portion 52 and the locking protrusion 53 can be provided on the outer peripheral surface.

  The inclined sealing surface 51c of the seal structure may contact the upper end of the overlapping wall portion 31 of the main body 13 from the inside instead of from the outside as described above.

  The specific shapes of the restricting surface 35 and the sliding surface 55 are not limited to the above-described shapes. For example, as shown in FIG. 9, the concave portion of the curved inclined portion 55c of the sliding surface 55 is increased. The lower or lower end 55a of the curved inclined portion 55c may be in sliding contact with the regulating surface 35 when the locking projection 53 gets over the locking receiving portion 33.

DESCRIPTION OF SYMBOLS 11 ... Storage container 13 ... Main body 15 ... Cover body 31 ... Overlapping wall part 31a ... Outer peripheral surface 32 ... Restriction part 33 ... Locking receiving part 33c ... Sliding contact surface 34 ... Motion conversion surface 35 ... Restriction surface 35b ... Slightly inclined part 35c ... Steeply inclined part 36 ... Inclined surface 51 ... Overlapping wall part 51a ... Inner peripheral surface 52 ... Sliding part 53 ... Locking protrusion 53d ... Sliding contact surface 54 ... Motion conversion surface 55 ... Sliding surface 56 ... Abutting surface

Claims (6)

A lid attaching / detaching structure formed on the circumferential surfaces of the main body and the cylindrical overlapping wall portion of the lid that are opposed to each other,
A restricting portion that protrudes in the thickness direction of the overlapping wall portion on one of the circumferential surfaces facing each other and restricts relative movement of the other circumferential surface, and a latch receiving portion that protrudes in the thickness direction of the overlapping wall portion Formed,
On the other of the circumferential surfaces facing each other, a sliding portion that projects in the thickness direction of the overlapped wall portion and slides on the regulating portion, and an engagement receiving portion that protrudes in the thickness direction of the overlapped wall portion A locking projection is formed to lock to the
The linear motion of covering the body with the lid on the restricting portion and the sliding portion is converted into a motion in which the locking protrusion is moved closer to the locking receiving portion and directed to the lower portion of the locking receiving portion. A lid attachment / detachment structure on which a motion conversion surface is formed. The lid attaching / detaching structure according to claim 1, wherein the locking protrusion is formed independently of the sliding portion. The motion conversion surface of the restriction portion is a curved restriction surface,
The regulating surface has a gently inclined portion on the upper side of the overlapping wall portion and a steeply inclined portion on the lower side,
The lid attaching / detaching structure according to claim 1, wherein the motion conversion surface of the sliding portion is a linear sliding surface. In the vicinity of the locking receiving portion, an inclined surface inclined at an angle that prevents further rotation from the position where the locking protrusion is locked to the locking receiving portion to the tip thereof is formed,
The lid attaching / detaching structure according to any one of claims 1 to 3, wherein a contact surface that contacts the inclined surface is formed in the vicinity of the locking projection. A sliding contact surface inclined in the same direction intersecting the relative movement direction of the locking projection is formed at the projecting tip of the locking receiving portion and the locking projection,
The cover body attaching / detaching structure according to any one of claims 1 to 4, wherein the protruding heights of the sliding contact surfaces are heights that interfere with each other in a normal state. A storage container comprising the lid detachable structure according to any one of claims 1 to 5.

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