JP3198561U - Container fixture - Google Patents

Abstract

Provided is a container fixture that can repeatedly fix a lid and a container, functions as a handle, and is easy to manufacture. A central plate 4 having a length slightly longer than the diameter of a lid 1 of the container, and a pair of side plates 5 formed symmetrically on both sides in the length direction of the central plate 4 and facing each other. , 5, wherein the central plate portion 4 and the side plate portions 5, 5 are integrally formed of an elastic material, and at the end portions of both the side plate portions 5, 5, the container body The at least one side plate portion 5 protrudes in a direction opposite to the position of the central plate portion 4 and then bends at a substantially right angle to be engaged with the inner periphery of the container body. A first fixing portion 7 that comes into contact with the portion and a second fixing portion 64 that protrudes in the same direction as the first fixing portion 7 and comes into contact with the outer peripheral portion of the container body are formed. . [Selection] Figure 1

Description

  The present invention relates to a container fixture that also serves as a handle.

  An example of a container in which the lid is not fixed to the container body and is simply placed is a pot rice container. Kamameshi is a cooked rice dish prepared by putting shiitake mushrooms, chicken, etc. on cooked rice, and cooking in a single kettle, and the famous boxed rice sold at stations etc. is Kamakamameshi (registered trademark). The pot rice container is composed of a pottery container body and a lid. At a position slightly lowered from the circular opening of the container main body, a collar portion (collar portion) protruding outward in a substantially horizontal direction is formed over the entire circumference. The lid is a disk-like member having a diameter slightly larger than the outer shape of the upper end of the outer periphery forming the opening of the container body, and two linear protrusions are provided on the upper surface of the lid. The lid is only placed on the upper end of the outer periphery of the container body, and there is no fixing means. For this reason, it is necessary to prevent the lid from coming off from the container main body when selling the cooked rice. For example, a technique for fixing the lid and the container main body with a paper frame has been proposed (for example, Patent Documents). 1).

Japanese Patent Application Laid-Open No. 2015-1385

  In the case of a pot rice container, the lid and the container body are made of earthenware, so it can be used repeatedly, but in reality, it is discarded after the food is eaten. There is. Disposing of reusable containers in a single use is contrary to the effective use of resources and also costs for the disposal of ceramic waste. As a background to the disposal of a pot rice container, it is inconvenient to carry and store food because the lid and the container body are not fixed, and it has a handle. However, it is not convenient for cooking at home. The technique of fixing the lid and the container body with the paper frame described above can not be repeatedly applied after eating the food inside, and solves the problem of inconvenience when cooking at home It is not something that can be done.

  An object of the present invention is to provide a container fixture that can fix the lid and the container body repeatedly, functions as a handle, and can be easily manufactured.

  The first device is a central plate having a length slightly longer than the diameter of the lid of the container, a pair of side plates formed symmetrically on both sides in the length direction of the central plate and facing each other, The central plate portion and the side plate portion are integrally formed of an elastic material, and an engaging portion that engages with the container body is formed at the end portions of both side plate portions. The first fixing portion that is adapted to be bent at a substantially right angle and abut on the inner peripheral portion of the container body after protruding in a direction opposite to the position of the central plate portion on at least one side plate portion, It is a container fixture in which the 2nd fixing | fixed part which protrudes in the same direction as a 1st fixing | fixed part and contacts the outer peripheral part of a container main body is formed.

  According to the container fixing tool of the first device, the lid can be fixed to the container body by the center plate portion coming into contact with the lid body and the engaging portions of both side plate portions engaging the container body. it can. Further, when the side plate supports the container body by the first fixing portion abutting on the inner peripheral portion of the container body and the second fixing portion abutting on the outer periphery of the container body, the central plate portion is located outside the container body. Because it is located in, it functions as a handle. Further, since the central plate portion and the side plate portion are integrally formed, the manufacture is simple.

  According to a second device, in the first device, the engaging portion is adapted to engage with the flange portion of the container body, and the second fixing portion is located below the flange lower surface of the container body or the lower surface of the flange portion. This is a container fixture that comes into contact with the outer periphery of the container body.

  According to the container fixture of the second device, when the collar portion is formed on the container main body, the central plate portion contacts the lid body, and the engaging portions of both side plate portions engage with the collar portion. As a result, the lid can be fixed to the container body. In addition, the first fixing part comes into contact with the inner peripheral part of the container body, and the second fixing part comes into contact with the lower part of the container body or the outer peripheral part of the container body below the lower part of the container part, so that the side plate part becomes the container. When the main body is supported, the center plate portion functions as a handle because it is located outside the container main body.

  The third device is the first device or the second device, wherein the width of the central plate portion is narrower than the distance between the two linear protrusions formed on the lid, and the central plate portion and both side plate portions. This is a container fixture in which linear convex portions for increasing mechanical strength are formed.

  According to the third device, in the case where two linear protrusions are formed on the lid, like the lid of the pot rice container, the width of the central plate portion is the two formed on the lid. Since it is narrower than the interval between the linear projections, the central plate portion is reliably positioned between the two linear projections formed on the lid. Furthermore, since the linear convex portion is formed over the central plate portion and the side plate portion, the central plate portion is maintained while the angle between the central plate portion and the side plate portion is substantially maintained during the elastic deformation of the container fixture. As a result of bending due to external force, the distance between both side plate portions expands and contracts in the left-right direction, whereby the engaging portion formed on the side plate portion engages with the container body. As a result, metal fatigue at the boundary between the central plate portion and the side plate portion is reduced even by a plurality of elastic deformations, so that the container fixture can repeatedly fix the pot rice container many times. When the container fixture functions as a handle, the angle between the central plate portion and the side plate portion is substantially maintained by the linear convex portion, and the linear convex portion is intermediate between both side plate portions. Since the center plate portion is formed over the entire center plate portion and can be prevented from being bent or excessively bent, it is easy to handle the container body during cooking.

  The fourth device is the second device, in which the engaging portion is refracted toward the central plate portion, the second refracting portion refracted in the direction opposite to the refracting direction of the first refracting portion, It has a curved shape consisting of an intermediate part between the first refracting part and the second refracting part, and when the lid is fixed to the container body, the lower surface of the second refracting part is the upper surface of the buttock of the container body. The first fixing portion is in contact with the inner surface of the container body when the upper surface of the first refracting portion slides on the lower surface of the collar portion and comes into contact with the lower surface of the collar portion to grip the container body with the container fixture. In relation to the shape of the lid and the container body, the second fixing part is in contact with the peripheral part, and the second fixing part is in contact with the outer peripheral part of the container body below the flange lower surface of the container body or the lower surface of the flange part. A container fixture in which a shape including a refraction angle of a first refraction part and a second refraction part is defined.

  According to the fourth device, the container fixture can reliably fix the lid to the container body and can function as a handle of the container.

  As described above, according to the container fixture of the present invention, the lid and the container body can be repeatedly fixed, can function as a handle, and can be easily manufactured.

It is a perspective view which shows the state which fixed the cover body to the container main body with the pot rice container fixing tool 3. FIG. It is a front view of the pot rice container fixture 3. It is a top view of the pot rice container fixture 3. FIG. It is a bottom view of the pot rice container fixture 3. It is a side view of the pot rice container fixture 3. It is a surface which shows the process of fixing a cover body to a container main body with the pot rice container fixing tool 3. FIG. It is a surface which shows the process of fixing a cover body to a container main body with the pot rice container fixing tool 3. FIG. It is a surface which shows the process of fixing a cover body to a container main body with the pot rice container fixing tool 3. FIG. It is a schematic sectional drawing which shows the state which the pot rice container fixing tool 3 functions as a handle. It is the perspective view which looked at the state which the pot rice container fixing tool 3 is arrange | positioned at a container main body, and functions as a handle from the upper direction. It is the perspective view which looked at the state which the pot rice container fixing tool 3 is arrange | positioned at a container main body, and functions as a handle from the downward direction.

  Embodiments of the present invention will be described according to the following examples. In this specification, “horizontal direction” means a direction parallel to the upper surface 11 of the lid 1 of the pot rice container shown in FIG. It means the direction perpendicular to the horizontal direction (up and down direction on the drawing in each figure).

  As shown in FIG. 1, the pot rice container includes a lid 1 and a container body 2. The lid 1 and the container body 2 are made of earthenware. The lid 1 has a disc shape, and two linear protrusions 12 and 12 are provided on the lid upper surface 11 which is the upper surface thereof. The container body 2 is a container in which a circular opening (not shown) is formed by a circular outer peripheral wall, and a collar portion (collar) that protrudes outward substantially horizontally at a position slightly lowered from the upper end portion 24 of the outer peripheral wall. Part) 22 is formed over the entire circumference. The diameter of the lid 1 is slightly larger than the outer diameter of the outer peripheral wall upper end 24 of the container body. The lid 1 is only placed on the outer peripheral wall upper end 24 of the container body 2, and neither the lid 1 nor the container body 2 has a fixing means.

  As shown in FIGS. 1 to 5, the pot rice container fixture 3 (hereinafter referred to as “fixer 3”) includes a central plate portion 4 and a pair of side plate portions 5 and 5. The side plate portions 5 and 5 are formed symmetrically on both sides in the length direction of the central plate portion 4. In addition, since the fixture 3 of a present Example is a right-and-left symmetrical structure, in this specification, only either one of right and left is demonstrated suitably. The central plate portion 4 and the side plate portions 5 and 5 are integrally formed of an elastic material. The elastic material is, for example, a stainless steel band for springs such as SUS301, SUS304, and SUS631, and the shape of the fixture 3 is formed by punching and pressing the elastic material. The elastic material may be other metals such as brass. In addition, as long as the material has elasticity, the fixing device 3 may be formed of a thermosetting resin such as an epoxy resin, a melamine resin, a urea resin, a phenol resin, or a thermoplastic resin, for example, The fixture 3 may be formed of PPS resin.

  The length L1 (see FIG. 3) of the central plate portion 4 is the same as the diameter of the lid 1 or slightly longer than the diameter of the lid 1. The width W1 (see FIG. 3) of the central plate portion 4 is smaller than the distance between the two linear protrusions 12 and 12 formed on the lid 1. The width W2 (see FIG. 3) of the side plate portions 5 and 5 is larger than the width W1 of the central plate portion 4.

  The side plate portions 5 and 5 are formed symmetrically on opposite sides of the central plate portion 4. The length of the straight portion 5a (see FIG. 2A) of the side plate portion 5 is substantially equal to the shortest distance L3 (see FIG. 6A) between the outer edge of the lid 1 and the outer edge of the flange portion 22. An angle θ3 (see FIG. 2A) formed by the central plate portion 4 and the side plate portions 5 and 5 is an obtuse angle larger than a right angle, but the line segment L3 in FIG. 6A (the above shortest distance L3 is set). It is defined as an angle slightly smaller than an angle θ6 (see FIG. 6A) formed by the direction of the measurement direction) and the horizontal direction. Engagement portions 6 that are engaged with the flange portions 22 of the container body 2 are formed at the end portions of the side plate portions 5 and 5. The center plate part 4 and the engaging part 6 are main components for fixing the lid body to the container body, and function at the time of fixing. The angle θ3 is defined as described above because when the fixture 3 fixes the lid 1 and the container body 2, the edge 22 of the container body 2 is pressed from the left and right, and the force from the left and right is determined. The lid 1 can be tightened from above and below so that force is applied to the lid 1 from above by the central plate portion 4 and from below by the engaging portion 6 to the lower surface of the flange portion 22. It is for doing so.

  In addition, the side plate portions 5 and 5 protrude in the opposite direction to the position of the central plate portion 4 and then protrude in the same direction as the first fixing portion and the first fixing portion 7 that bends at a substantially right angle downward. A second fixing portion 64 is formed. The center plate part 4, the first fixing part 7, and the second fixing part 64 are main components when the fixing tool 3 functions as a handle of the container body 2, and function when gripping. At the time of gripping, the first fixing portion 7 abuts on the inner peripheral portion of the container main body 2, and the second fixing portion 64 is a hook lower surface 22 b (see FIG. 6A) of the container main body 2 or the lower surface of the hook main body 2. It contacts the heel lower part 23 of the container body located below. Unlike the present embodiment, the first fixing portion 7 and the second fixing portion 64 may be formed on either one of the side plate portions 5 and 5 instead of both.

  Moreover, the linear convex parts 41 and 41 are formed over the center board part 4 and both the side board parts 5 and 5. FIG. The linear convex portions 41 and 41 are formed by pressing, and the upper side in each figure is a convex surface and the lower side is a concave surface. The linear protrusions 41 and 41 have a function of enhancing the mechanical strength of the central plate portion 4 and maintaining an angle θ3 (see FIG. 2A) formed by the central plate portion 4 and the side plate portion 5.

  As shown in FIG. 1, the engaging portion 6 includes a first refracting portion 61 refracted in the direction of the central plate portion 4, a second refracting portion 63 refracted in the direction opposite to the central plate portion 4, and a first refracting portion. A curved shape including an intermediate portion 62 between the portion 61 and the second refracting portion 63 is formed. An end portion of the second refracting portion 63 is a second fixing portion 64.

  When fixing the lid 1 to the container body 2, the lower surface 63 b of the second refracting portion 63 slides on the flange upper surface 22 a of the container body 2 (see FIG. 6), and the intermediate portion 62 gets over the flange 22. In addition, the upper surface 61a of the first refracting portion slides on the flange lower surface 22b and then comes into contact with the flange lower surface 22b. Note that unlike the present embodiment, when the flange portion is not formed on the container main body, the engaging portion 6 engages or abuts on the outer peripheral portion of the container main body.

  In addition, when the fixture 3 functions as a handle of the container body 2, the first fixing portion 7 comes into contact with the inner peripheral portion of the container body 2, and the second fixing portion 64 is the flange lower surface 22 b of the container body 2 or The lower part 23 (see FIG. 1) which is the outer peripheral part of the container body below the lower part lower surface 22b comes into contact. In addition, unlike the present Example, when the collar part is not formed in the container main body, the 2nd fixing | fixed part 64 contact | abuts the outer peripheral part of a container main body.

  Hereinafter, the structure of the fixture 3 will be described in detail. The refraction angle θ1 (see FIG. 2B) of the first refracting portion 61 with respect to the length direction (horizontal direction) of the central plate portion 4 is an angle θ4 with respect to the horizontal line of the flange lower surface 22b of the container body 22 (see FIG. 6B). ))). That is, if θ1 is too large, the upper surface 61a of the first refracting portion 61 is separated from the flange lower surface 22b at the time of fixing, so that it cannot slide or contact. That is, since the upper surface 61 a cannot press the flange lower surface 22 b from below, the lid 1 cannot be firmly fixed to the container body 2 by the fixing tool 3. On the other hand, if the refraction angle θ1 is too small, it is not easy for the engaging portion 6 to climb over the flange portion 22 from above to enter the direction of the flange lower surface 22b at the time of fixing, and the engagement becomes difficult. Become. For this reason, the refraction angle θ1 is so small that the upper surface 61a of the first refracting portion 61 can slide on the flange lower surface 22b at the time of fixation, and the engaging portion 6 can be easily positioned at the position of the flange lower surface 22b. It is defined as an angle that is large enough to allow entry, and specifically, is an angle that is substantially the same as or slightly smaller than the angle θ4.

  The refraction angle θ2 (see FIG. 2B) of the second refraction part 63 with respect to the horizontal direction is an angle θ5 with respect to the horizontal line of the collar upper surface 22a of the container body 22 and an angle θ4 with respect to the horizontal direction of the collar lower surface 22b (FIG. b) and (c)). First, the refraction angle θ <b> 2 is an angle at which the lower surface 63 b of the second refracting portion 63 easily slides on the flange upper surface 22 a of the container main body 2 at the time of fixing. Specifically, the angle θ2 is desirably substantially the same as the angle θ5 with respect to the horizontal line of the collar upper surface 22a, but the horizontal angle (parallel to the length direction of the central plate portion 4 and θ = 0). Angle) within an angle range slightly larger than the angle θ5. That is, 0 ≦ θ2 ≦ θ5 + α. However, if the refraction angle θ2 is excessively large, the second fixing portion 64 is the heel lower surface 22b or the heel lower portion 23 which is the outer peripheral portion of the container body 2 below the heel lower surface 22b when gripping (see FIG. 1) It becomes difficult to abut. In addition, if the refraction angle θ2 is too small, it is difficult for the second fixing portion 64 to enter in the direction of the flange lower surface 22b when gripping. For this reason, the refraction angle θ2 of the second refracting portion 63 is such that the lower surface 63b of the refracting portion 63 easily slides on the flange upper surface 22a of the container body 2 at the time of fixing and the second fixing portion at the time of gripping. 64 is defined so as to easily come into contact with the heel lower portion 23 which is the outer peripheral portion of the container main body 2 below the heel lower surface 22b or the heel lower surface 22b. The refraction angle θ2 is an angle slightly larger than the angle θ4, for example. That is, the desired angle of the refraction angle θ2 is slightly larger than the angle θ4 and is substantially the same as the angle θ5.

  Next, a method of fixing the lid 1 to the container body 2 by the fixing member 3 will be described with reference to FIGS. FIG. 6A shows a state in which the fixing member 3 is placed so as to cover the lid body 1 in a state where the lid body 1 is placed on the container body 2. The lower surface 63b of 63 has shown the state just before contacting the collar upper surface 22a. At this time, the distance between the engaging portions 6 and 6 is L2a. In this state, when a force in the direction of arrow P is applied in the vicinity of the center of the central plate portion 4, the lower surface 63b of the second refracting portion 63 comes into contact with the flange upper surface 22a, and the plate portion 4 bends due to this stress. The distance between the engaging portions 6 and 6 is increased. Then, the lower surface 63b of the second refracting portion 63 slides on the flange upper surface 22a, and is in the state shown in FIG. In FIG. 7, the distance between the engaging portions 6 and 6 is broadened mainly by bending the central plate portion 4, and the distance is L <b> 2 b. The distance L2b is substantially the same as the outer diameter of the flange portion 22. In the state of FIG. 7, when a force is further applied to the central plate portion 4, both the engaging portions 6 and 6 get over the flange portion 2, and the upper surface 61 a of the first refracting portion slides on the lower surface 22 b of the flange portion 22. Then, the state shown in FIG. In the state of FIG. 8A, the lid body 1 is fixed to the container body 2. FIG. 8B is a partially enlarged view of FIG. 8A, and FIG. 8C is an enlarged view illustrating the container body 2 and the fixing member 3 separated for convenience of explanation. As shown in FIGS. 8B and 8C, the boundary portion 61 c between the straight portion 5 a of the side plate portion 5 and the engaging portion 6 is located on the inner side of the side plate portions 5, 5 with the protruding end portion 22 c of the flange portion 22. It is in contact. Further, the upper surface 61 a of the refracting portion, which is the upper surface of the first refracting portion 61, is in contact with the lower surface 22 b of the flange portion, which is the lower surface of the flange portion 22.

  In FIG. 8A, the distance between the engaging portions 6 and 6 is L2c. The distance L2c is larger than the distance L2a and smaller than the distance L2b. The dimensions of the fixture 3 including the engaging part 6 are defined in relation to the dimensions of the respective parts of the lid 1 and the container body 2 so that the distance between the engaging parts 6 and 6 is as described above. . Since the distance between the engaging portions 6 and 6 is the distance L2c, the engaging portions 6 and 6 can tighten the edge 22 from both sides. In FIG. 8A, the direction of the force tightened from both sides is indicated by arrows x1 and x2. The horizontal force of the arrows x1 and x2 has a vertical component force because the engaging portions 6 and 6 are formed in a curved shape, and the refracting portion upper surface 61a extends from the bottom of the flange lower surface 22b. It becomes the force to press. That is, the upper surface 61a of the refracting portion has an angle θ1 (see FIG. 2) with respect to the horizontal direction, so that it has a component force in the above-described vertical direction (y2 direction). Thereby, the center plate part 4 and the refracting part upper surface 61a are adapted to fasten the lid 1 and the flange part 22 of the container body 2 from the vertical direction. The direction of force tightened from the vertical direction is indicated by arrows y1 and y2.

  As described above, the fixture 3 is positioned between the two linear protrusions 12 in which the central plate portion 4 is formed on the lid body 1, and the flange portion 22 of the container body 2 by the side plate portions 5 and 5. The center plate portion 4 and the engaging portion 6 are used to tighten the lid 1 and the flange lower surface 22b with a vertical force. Thereby, the fixing tool 3 can fix the cover body 1 to the container main body 2 accurately and reliably. Unlike the present embodiment, when the flange portion is not formed on the container main body, the engaging portion 6 contacts the outer peripheral portion of the container main body, but the container main body is substantially hemispherical, Since the engaging portion 6 has a curved shape, the force with which the engaging portion 6 comes into contact with the outer peripheral portion of the container main body has a component force to press upward on the outer peripheral portion of the container main body, and the fixing tool 3 as a whole. The lid body and the container body can be tightened with a vertical force.

  Next, with reference to FIGS. 9-11, the fixing tool 3 supports the container main body 2, and the state which functions as a handle, ie, the state at the time of holding | grip, is shown. FIG. 9A is a schematic cross-sectional view of the container body 2 and the fixing member 3 at the time of gripping. FIG. 9B is a partially enlarged view of FIG. 9A, and FIG. 9C is a partially enlarged view of the fixing member 3 of FIG. 9A. As shown in FIGS. 9A to 9C and FIG. 10, the straight portion 7 b of the first fixing portion 7 contacts the inner peripheral portion 25 of the container body 2. Further, the second fixing portion 64 comes into contact with the flange lower surface 22b of the container body 2. Note that the second fixing portion 64 may abut on the heel lower portion 23 of the container body 2. More specifically, as shown in FIG. 11, the second fixing portion 64 includes projecting portions 64 a and 64 a, and the projecting portions 64 a and 64 a abut against the flange lower surface 22 b. Thus, the fixture 3 supports the container body 22 at the three points of the linear portion 7b of the first fixing portion 7 and the protrusions 64a and 64a of the second fixing portion 64. As shown in FIGS. 9B and 9C, the inner height d <b> 1 of the entire engaging portion 6 is slightly larger than the height d <b> 2 of the flange portion 22 of the container body 2. That is, the engaging portion 6 is formed such that the shape of the space formed by the first refracting portion 61, the intermediate portion 62, and the second refracting portion 63 is slightly larger than the shape of the flange portion 22 of the container body 2. Has been. Thereby, the container main body 2 can be supported at the three points of the linear portion 7b of the first fixing portion 7 and the protrusions 64a and 64a of the second fixing portion 64. Moreover, since the width w2 of the side plate portion 5 is configured to be larger than the width w1 of the central plate portion 4 (see FIG. 3), the support of the container body 22 at three points is more robust. . Moreover, since the mechanical strength of the fixture 3 as a whole is reinforced by the linear convex portions 41, 41, the angle θ3 (see FIG. 9A) between the central plate portion 4 and the side plate portion 7 is the container body. Even if the contents are contained in 22, the fixing plate 3 is almost maintained and the center plate portion 4 itself is strengthened. Therefore, when cooking the central plate portion 4 of the fixing device 3 as a handle, Almost no deformation.

In addition, the fixing device for pot rice of this invention is not restricted to the form of the said Example, A various change can be added in the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 1 Cover body 12 Linear protrusion 2 Container main body 22 Gutter part 22a Gutter part upper surface 22b Gutter part lower surface 3 Pot rice container fixing tool 4 Center plate part 41 Linear convex part 5 Side plate part 6 Engagement part 64 Second fixing part 7 First Fixed part

Claims (4)

A container fixture having a central plate portion having a length slightly longer than the diameter of the lid of the container, and a pair of side plate portions that are symmetrically formed on both sides in the length direction of the central plate portion and face each other. Because
The central plate portion and the side plate portion are integrally formed of an elastic material,
Engagement parts that engage with the container body are formed at the ends of both side plate parts,
At least one of the side plate portions protrudes in a direction opposite to the position of the central plate portion, and then bends substantially at a right angle so as to contact the inner peripheral portion of the container body. And a second fixture that protrudes in the same direction as the first fixture and contacts the outer periphery of the vessel body. The engaging portion is adapted to engage with the flange of the container body,
2. The container fixture according to claim 1, wherein the second fixing part comes into contact with a lower surface of the flange part of the container main body or an outer peripheral part of the container main body below the lower surface of the flange part. The width of the central plate portion is narrower than the interval between the two linear protrusions formed on the lid body, and linear convex portions for increasing mechanical strength are formed across the central plate portion and the side plate portions on both sides. The container fixture according to claim 1 or 2, wherein the container fixture is provided. The engaging portion includes a first refracting portion refracted toward the central plate portion, a second refracting portion refracted in a direction opposite to the refraction direction of the first refracting portion, the first refracting portion, and the second refracting portion. It has a curved shape consisting of an intermediate portion between the refracting portion, and when the lid is fixed to the container body, the lower surface of the second refracting portion slides on the upper surface of the flange portion of the container body. And when the upper surface of the first refracting portion slides on the lower surface of the flange portion and comes into contact with the lower surface of the flange portion, and the container body is gripped by the container fixing tool, the first fixing portion becomes the container. The lid body and the container body so as to contact the inner peripheral part of the main body and the second fixing part contact the lower surface of the flange part of the container body or the outer peripheral part of the container body below the lower surface of the flange part. The shape including the refraction angle of the first refraction part and the second refraction part is defined in relation to the shape of Container fixation device, according to.