JP2006021796A - Tray - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tray which can be laminated on each other with a storage space therebetween, capable of preventing dust from invading into a storing part, and reducing the number of components thereof while the dust is prevented from invading into the storing part. <P>SOLUTION: The tray 1 has a storing part 3 to store the components. An outer annular recessed part 15 and an inner annular recessed part 16 are formed on a frame part 2 of the tray 1. The outer annular recessed part 15 consists of an outer first recessed part 17 and an outer second recessed part 18 protruded to a back face side. The inner annular recessed part 16 consists of an inner first recessed part 19 protruded to the back face side and symmetric to the outer first recessed part 17 and an inner second recessed part 20 protruded to the back face side and symmetric to the outer second recessed part 18. When the tray 1 is turned by 180°, and overlap the other tray 1, protruded portions 25 and 26 of the first recessed parts 17 and 19 of the upper tray 1 are engaged with the second recessed parts 18 and 20 of the lower tray 1, respectively, and a sealed storage space S is formed between the trays 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a tray.

2. Description of the Related Art Conventionally, trays that can accommodate items such as parts and foods are manufactured and widely used for assembly, conveyance, inspection, and the like. Among such trays, a tray that accommodates an object that does not like the adhesion of dust generally has a configuration for preventing entry of dust and the like. For example, the container described in Patent Document 1 prevents dust from adhering to the accommodation by covering a tray that contains the accommodation with a lid.
Japanese Patent Laid-Open No. 6-199378

  However, in the container described above, the number of parts is increased by providing the lid. In addition to the need for a step of covering the tray with a lid at the time of shipment or the like, it is difficult to stack a large number of containers.

  On the other hand, there is also proposed a stackable structure in which the upper tray serves as the lid of the lower tray. For example, when the trays are stacked in the same direction, they are efficiently stacked in a substantially tight state. In addition, when the trays are alternately stacked in different directions, an accommodation space for accommodating the contents is provided between the trays.

  However, since the trays are configured to positively provide storage spaces between the trays when stacked alternately in opposite directions, gaps are easily generated between the trays. There is a possibility of dust intruding.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a tray that can be stacked with each other by providing a storage space and that can prevent dust from entering the storage portion. There is.

  Another object of the present invention is to provide a tray that can prevent the intrusion of dust into the housing and reduce the number of components.

  The present invention is a tray provided with a storage portion, and includes a plurality of loop-shaped annular recesses protruding on the back surface side outside the storage portion, and each of the annular recesses has a plurality of recesses having different depths. And when the trays are stacked in different directions, the lower trays are provided with protrusions that form the concave portions with the large depth of the upper tray. In addition, it is engaged with each of the recesses having a depth smaller than that of the recess, thereby forming an accommodation space in the accommodation part and sealing the accommodation space.

According to this, the tray includes a plurality of loop-shaped annular recesses on the outside of the accommodating portion. Moreover, each annular recessed part protrudes in the back surface side, and is comprised from the several recessed part from which depth differs. Furthermore, when the trays arranged in different directions are stacked, the protrusions forming the recesses with the large depth of the upper tray are engaged with the recesses of the lower tray with a smaller depth. Is done. Therefore, due to the difference between the length of each protrusion and the depth of each recess, the same shape of tray can be stacked with a storage space between the trays, so a lid, a tray of another shape, etc. A member covering the tray is not required. And since the back surface of the protrusion part which comprises a deep recessed part contact | abuts to the bottom face of a shallow recessed part, an accommodating part can be sealed. Therefore, it is possible to prevent dust and the like from entering the housing portion.

  The present invention is a tray provided with a storage portion, and includes an inner recess formed outside the storage portion and an outer recess formed outside the inner recess, and the inner recess is formed on the back surface side. The inner first recess having a protrusion and the inner second recess having a depth smaller than that of the inner first recess, the outer recess having a protrusion on the back side, and in a symmetrical position with the inner first recess. The outer first concave portion is formed, and the rear surface is provided with a projecting portion, is formed in a symmetrical position with the inner second concave portion, and is formed of an outer second concave portion having a smaller depth than the outer first concave portion. In addition, when the trays are stacked in different directions, the protrusions of the first recesses provided on the upper tray are engaged with the second recesses of the lower tray, It seals in the state which provided the accommodation space in the said accommodating part.

  According to this, the protrusion part of each 1st recessed part which comprises the inner side recessed part and outer side recessed part of an upper tray is each engaged with each 2nd recessed part of a lower tray. Further, the outer first concave portion and the inner first concave portion are provided so as to be symmetrical to each other. Therefore, because of the difference in depth between the first recess and the second recess, trays of the same shape can be stacked in a state in which an accommodation space for accommodating items is provided between the trays. There is no need for a tray with a different shape. And since the back surface of the protrusion part of each 1st recessed part provided symmetrically closely_contact | adheres to the bottom face of a 2nd recessed part, the penetration | invasion of the dust etc. to the accommodating part side can be prevented in the outer peripheral whole region of an accommodating part.

  In this tray, each of the first recesses and each of the second recesses is provided on each half circumference of the inner recess and the outer recess, and the upper tray is rotated 180 degrees with respect to the lower tray. Laminate.

  According to this, each 1st recessed part and each 2nd recessed part are provided in each half circumference of the inner side recessed part and the outer side recessed part. Further, when stacking, the upper tray is stacked on the lower tray in a direction rotated by 180 degrees. For this reason, the structure of the tray can be simplified. Moreover, in the process of stacking a large number of trays, it is only necessary to rotate the trays alternately and rotate them 180 degrees, so that the working efficiency can be improved.

In this tray, the first concave portion and the second concave portion are formed in a tapered shape.
According to this, when the trays are arranged in the same direction and stacked, the trays can be stacked exactly without providing a storage space for storing the contents. For this reason, when not in use, the trays can be efficiently stacked to reduce the occupied space. In addition, even when the trays are stacked in different directions, the protrusions of the first recesses and the second recesses can be easily engaged.

In this tray, when stacking the trays, the tray is provided with a restricting portion for restricting the downward movement of the upper tray in the vertical direction.
According to this, the tray is provided with a restricting portion that prevents the upper tray from moving downward in the vertical direction when stacking. For this reason, each tray is positioned in the vertical direction by the engagement of the protrusions and the second recesses of the first recesses and the restricting portion. Accordingly, since the fulcrum provided between the trays in the stacked state can be increased, the load applied to each fulcrum of the lower tray can be reduced when a plurality of trays are stacked. For this reason, even when the trays are stacked in many stages, the tray can be prevented from being damaged and deformed, and the accommodation space can be sealed.

In this tray, each of the restriction portions of the tray is disposed at an asymmetric position with respect to the restriction portion of the upper or lower tray when the trays are stacked in different directions.
The downward movement of each tray is restricted.

  According to this, when the trays are stacked in different directions, the tray restricting portion is disposed at an asymmetric position with respect to the other tray restricting portion. For this reason, when stacked in the same orientation, they can be stacked without providing a storage space between the trays, and when stacked alternately in different directions, Intrusion of dust can be prevented while providing an accommodation space.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments embodying the present invention will be described with reference to FIGS. In the present embodiment, the tray is described as a tray for housing components. 1 is a perspective view of the tray 1 as viewed from the front side, FIG. 2 is a plan view of the tray 1, FIG. 3 is a perspective view as viewed from the back side of the tray 1, and FIG. It is. 5 to 8 are cross-sectional views of the main part of the tray 1, respectively. FIG. 5 is a cross-sectional view taken along line AA in FIG. 2, FIG. 6 is a cross-sectional view taken along line BB, and FIG. FIG. 8 shows a cross section taken along line DD.

  The tray 1 is formed by injection molding or the like from a synthetic resin such as polystyrene or polyethylene terephthalate, and has a substantially rectangular outer shape as shown in FIG. A rectangular frame 2 is provided on the outer periphery of the tray 1. The frame part 2 has an outer wall 21, an upper side wall 22, and an inner side wall 23, and the accommodating part 3 is recessed on the inner side surrounded by the inner side wall 23.

  First, the accommodating part 3 is demonstrated. On the bottom surface of the housing portion 3, a recess and a protrusion for fixing a plurality of components are formed. Specifically, as shown in FIGS. 1 and 2, each circular recess 6 is formed in the center of a plurality of fixed portions 5 that protrude in a rectangular shape and a substantially L shape. As shown in FIGS. 5 and 6, the back surface of each circular recess 6 is at the same height as the back surface F <b> 1 of the flange portion 12 provided on the outer periphery of the lower end of the frame portion 2. Moreover, each fixing | fixed part 5 which protruded from the accommodating part 3 bottom face is formed so that the upper surface may become lower than the upper side wall 22 of the frame part 2, as shown in FIG.

  As shown in FIG. 2, when the fixing portions 5 are fixed so as to sandwich the corners of the component P, circular protrusions (not shown) protruding from the back surface of the component P are accommodated in the circular recesses 6. In addition, two rectangular recesses 7 are formed in the accommodating portion 3, and the other end of the component P whose one end is fixed by each fixing portion 5 is accommodated. The back surface of each rectangular recess 7 is at the same height as the back surface F1 of the flange 12 as shown in FIG.

  Next, the frame part 2 will be described. For convenience of explanation, regarding the outer wall 21 constituting the frame portion 2, the front side is referred to as a front outer wall portion 21a, the rear side is referred to as a rear outer wall portion 21b, the left side is referred to as a left outer wall portion 21c, and the right side is referred to as a right outer wall portion 21d.

  As shown in FIG. 1, the restricting portion 9 is recessed in the front outer wall portion 21a and the rear outer wall portion 21b. Each restricting portion 9 is composed of a fitting side wall portion 9a and a fitting bottom wall portion 9b as shown in the restricting portion 9 at the right end of the front outer wall portion 21a in FIG. In addition, as shown in the restricting portion 9 at the right end of the rear outer wall portion 21b in FIG. 3, each restricting portion 9 protrudes toward the inner wall 23 side. And the back surface F2 of the fitting bottom wall part 9b is formed in the position near the upper side wall 22 rather than the back surface F1 of the collar part 12. FIG.

  As shown in FIG. 2, six restricting portions 9 are formed at equal intervals on the front outer wall portion 21a and the rear outer wall portion 21b. In addition, each restricting portion 9 formed on the front outer wall portion 21 a and each restricting portion 9 formed on the rear outer wall portion 21 b are formed at asymmetric positions with the accommodating portion 3 interposed therebetween.

  As shown in FIG. 1, the left outer wall portion 21c and the right outer wall portion 21d are formed with restriction portions 10 having substantially the same shape as the restriction portion 9 described above. Each restricting portion 10 includes a fitting side wall portion 10a and a fitting bottom wall portion 10b as shown in the restricting portion 10 at the left end of the right outer wall portion 21d in FIG. The fitting side wall part 10a and the fitting bottom wall part 10b of each regulation part 10 project toward the inner wall 23 side as shown in the regulation part 10 at the left end of the left outer wall part 21c in FIG. And the back surface F3 of the fitting bottom wall part 10b is formed in the position near the upper side wall 22 rather than the back surface F1 of the collar part 12, similarly to the back surface F2 of the said fitting bottom wall part 9b.

  As shown in FIG. 2, six restricting portions 10 are formed at equal intervals on the left outer wall portion 21c and the right outer wall portion 21d. Further, the restricting portions 10 respectively formed on the left outer wall portion 21 c and the right outer wall portion 21 d are formed at asymmetric positions with the accommodating portion 3 interposed therebetween.

  Moreover, as shown in FIG. 1, the notch part 11 is formed in the intersection part of the rear side outer wall part 21b and the left side outer wall part 21c. As shown in FIG. 2, the cutout portion 11 includes a side wall portion 11 a with a corner portion cut obliquely and a bottom wall portion 11 b formed so as to be perpendicular to the side wall portion 11 a. The cutout portion 11 made up of the side wall portion 11a and the bottom wall portion 11b protrudes toward the inner side wall 23 as shown in FIG. Further, the back surface F4 of the bottom wall portion 11b of the cutout portion 11 is formed at a position closer to the upper side wall 22 than the back surface F1 of the flange portion 12 in the same manner as the back surface F2 of the fitting bottom wall portion 9b.

As shown in FIGS. 1 and 2, the upper side wall 22 of the frame portion 2 is provided with an annular recess, an outer annular recess 15 and an inner annular recess 16 as inner and outer recesses, respectively, in a loop shape.
First, the outer annular recess 15 will be described. As shown in FIGS. 1 and 4, the outer annular recess 15 includes an outer first recess 17 that is deeply tapered and an outer second recess 18 that is shallowly tapered. ing. As shown in FIG. 5, the outer first concave portion 17 is formed such that the depth to the bottom surface 17 a is larger than the depth to the bottom surface 18 a of the outer second concave portion 18. As shown in FIG. 2, the outer first concave portion 17 is formed in a substantially U shape on the left half of the upper side wall 22, and the outer second concave portion 18 is formed in a substantially U shape on the right half of the upper side wall 22. ing. As shown by the solid lines in FIGS. 2 and 7, step portions 15 a and 15 b are provided at the boundary between the outer first and second outer recesses 17 and 18. That is, the outer first recess 17 and the outer second recess 18 are formed so that their planar shapes are symmetrical.

  The outer first recess 17 and the outer second recess 18 protrude on the back side of the tray 1. More specifically, as shown in FIG. 5, the back surface 17b of the outer first recess 17 protrudes below the back surface 18b of the outer second recess 18 and is formed to a position that coincides with the back surface F1 of the flange portion 12. Has been. In the present embodiment, the outer first concave portion 17 viewed from the back side of the tray 1 is referred to as an outer protruding portion 25 as a protruding portion. The outer projecting portion 25 is tapered downward as the first concave portion 17 is formed in a tapered shape. In the present embodiment, the depth h1 of the bottom surface 18a of the outer second concave portion 18 is from the back surface F1 of the flange portion 12 to the back surfaces F2, F3, and F4 of the fitting bottom wall portions 9b and 10b and the bottom wall portion 11b. It is made to correspond with the space | interval d1.

  Next, the inner annular recess 16 will be described. As shown in FIGS. 1 and 4, the inner annular recess 16 formed on the inner side of the outer annular recess 15 is provided with an inner first recess 19 that is deeply tapered and a shallow recess that is tapered. It is comprised from the inner side 2nd recessed part 20. As shown in FIG. As shown in FIG. 5, the inner first recess 19 is formed such that the depth to the bottom surface 19 a is equal to the depth of the outer first recess 17. The inner second concave portion 20 is formed so that the depth to the bottom surface 20 a is equal to the depth of the outer second concave portion 18.

As shown in FIG. 2, the inner first concave portion 19 is formed in a substantially U shape on the right half of the upper side wall 22,
The inner second concave portion 20 is formed in a substantially U shape on the left half of the upper side wall 22. As shown by the solid lines in FIGS. 2 and 8, the inner first recess 19 and the inner second recess 20 are connected by stepped portions 16a and 16b provided at the boundary. That is, the inner first recess 19 and the inner second recess 20 are formed so that their planar shapes are symmetrical. The inner first concave portion 19 is arranged in parallel with the outer second concave portion 18, and the inner second concave portion 20 is arranged in parallel on each half circumference of the outer first concave portion 17 and the frame portion 2.

  The inner first concave portion 19 and the inner second concave portion 20 protrude on the back side of the tray 1. Specifically, as shown in FIG. 5, the back surface 19 b of the inner first recess 19 protrudes below the back surface 20 b of the inner second recess 20 and is formed to a position that coincides with the back surface F <b> 1 of the flange 12. Has been. In the present embodiment, the inner first concave portion 19 viewed from the back surface of the tray 1 is referred to as an inner protruding portion 26 as a protruding portion. The inner projecting portion 26 is tapered downward by forming the first concave portion 19 in a tapered shape. That is, as shown in FIG. 3, the outer protruding portion 25 and the inner protruding portion 26 are provided so as to be symmetrical (symmetrical positions) on the left half and the right half on the back side of the tray 1. Further, in the present embodiment, as shown in FIG. 5, the depth h2 of the bottom surface 20a of the inner second recess 20 is made to coincide with the depth h1 (= d1) of the outer second recess 18.

  Next, the operation of the tray 1 will be described. 9 and 10 are a perspective view and a main part sectional view in which the respective trays 1 are stacked in the same direction (forward direction), and FIG. 11 is a perspective view of the respective trays 1 arranged in different directions (reverse directions) to the left and right. . 12 and 13 are a perspective view and a side view of each tray 1 stacked in the opposite direction. FIG. 14 is a cross-sectional view taken along the line EE in FIG. 12, and shows a cross section in a state where four trays 1 are stacked for convenience of explanation.

  When the component P is not accommodated in the tray 1, the trays 1 are stacked in the same direction. At this time, the positions of the first recesses 17 and 19 and the second recesses 18 and 20 of each tray 1 are the same. Then, as shown in FIG. 9, one tray 1 is stacked on the other tray 1 in the same direction. Then, as shown in FIG. 10, each of the first recesses 17 and 19 and each of the second recesses 18 and 20 is formed in a tapered shape, so that the outer protrusion 25 provided on the back side of the upper tray 1. The inner protrusion 26 is fitted in the first recesses 17 and 19 of the lower tray 1.

  Further, the restriction portions 9 and 10 of the tray 1 are disposed at the same position as the restriction portions 9 and 10 of the lower tray 1. For this reason, the protruding portions of the restricting portions 9 and 10 that protrude on the back side of the tray 1 are fitted into the restricting portions 9 and 10 of the lower tray 1. As a result, as shown in FIG. 10, the bottoms of the circular recess 6 and the rectangular recess 7 of the upper tray 1 are arranged in the circular recess 6 and the rectangular recess 7 of the lower tray 1, respectively. Between each tray 1, the space which accommodates components is not formed, but it overlaps almost exactly. As a result, when not in use, the occupied volume of the multiple stacked trays 1 can be reduced to save space.

  On the other hand, when the trays 1 containing the components P are stacked on each other, the notches 11 of the upper tray 1 and the lower tray 1 are arranged at different corners as shown in FIG. For example, the cutout portion 11 of the upper tray 1 is arranged on the front right side, and the cutout portion 11 of the lower tray 1 is arranged on the rear left side. Then, the upper tray 1 is arranged in the reverse direction rotated 180 degrees with respect to the lower tray 1 arranged in the forward direction. At this time, the first concave portions 17 and 19 and the second concave portions 18 and 20 of each tray 1 are opposite to the first concave portions 17 and 19 and the second concave portions 18 and 20 of the lower tray 1. Become position. For example, when the outer first concave portion 17 of one tray 1 is disposed on the right side, the outer first concave portion 17 of the other tray 1 is disposed on the left side.

  When the trays 1 of different orientations are stacked, as shown in the right side of the uppermost tray 1 in FIG. 14 and the two-dot chain line in FIG. The bottom surface 18a of the second outer concave portion 18 of the tray 1 comes into contact. For this reason, each tray 1 is restricted from moving downward. Further, as shown in the left side of the uppermost tray 1 and FIG. 7, the back surface 18 b of the outer second recess 18 of the tray 1 is separated from the bottom surface 17 a of the outer first recess 17 of the lower tray 1. . For this reason, the outer protruding portion 25 provided in the half circumference of the back surface of the upper tray 1 is fitted with the outer second recessed portion 18 provided in the lower tray 1, thereby accommodating the receiving portion 3 of the lower tray 1. Shield half of the outer periphery.

  Further, as shown on the left side of the uppermost tray 1 in FIG. 14, the back surface 19 b of the inner first recess 19 of the tray 1 abuts the bottom surface 20 a of the inner second recess 20 of the lower tray 1. Further, as shown by the right side of the uppermost tray 1 and the two-dot chain line in FIG. 8, the back surface 20 b of the inner second recess 20 of the upper tray 1 is the bottom surface 19 a of the inner first recess 19 of the lower tray 1. And become separated. For this reason, the inner protrusion 26 provided on the half circumference of the back surface of the tray 1 is fitted to the inner second concave portion 20 provided on the lower tray 1, so that the outer periphery of the storage portion 3 of the lower tray 1 is fitted. Shield half. At this time, by providing the outer protrusion 25 and the inner protrusion 26 symmetrically, for example, when the outer protrusion 25 of the upper tray 1 shields the outer right half of the lower tray 1, The inner protrusion 26 of the upper tray 1 shields the outer left half. Therefore, the outer periphery of the accommodating portion 3 of the lower tray 1 is shielded over the entire area.

  Further, as shown in FIG. 14, the downward movement of each tray 1 is restricted by the contact between the back surface 19 b (inner protrusion 26) of the inner first recess 19 and the bottom surface 20 a of the inner second recess 20. . At this time, an accommodation space S is formed between the trays 1 due to the difference between the heights of the outer and inner protrusions 25 and 26 and the depths of the second recesses 18 and 20. For this reason, even if the trays 1 are stacked in a state where the components P are accommodated, the components P can be stacked without being crushed.

  Further, by forming the restricting portions 9 of the front outer wall portion 21a and the rear outer wall portion 21b of the tray 1 asymmetrically, as shown in FIG. It is arranged at a position shifted from the restricting portion 9. Similarly, as shown in FIG. 13, the restriction portion 10 of the upper tray 1 is disposed at a position shifted from the restriction portion 10 of the lower tray 1. Then, as shown on the left side of the uppermost tray 1 in FIG. 14, the back surface F <b> 3 of the regulating portion 10 comes into contact with the upper side wall 22 of the lower tray 1. In addition, the back surface F <b> 2 of the restricting portion 9 and the back surface F <b> 4 of the notch portion 11 also abut on the upper side wall 22. That is, not only the fitting of the protrusions 25 and 26 and the second recesses 18 and 20 but also the movement of the trays 1 in the vertical direction is restricted by the contact between the restriction portions 9 and 10 and the upper side wall 22. The Therefore, since the fulcrum provided between each tray 1 increases in the case of lamination | stacking, the load concerning each fulcrum becomes small. For this reason, even when a large number of trays 1 are stacked, the load of the upper tray 1 is applied in a state of being distributed to each fulcrum of the lower tray 1, so that the tray 1 can be prevented from being damaged or deformed.

According to the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the accommodating portion 3 for accommodating the component P is recessed inside the frame portion 2 provided on the outer periphery of the tray 1. In addition, a loop-shaped outer annular recess 15 and an inner annular recess 16 were formed in the frame portion 2. Further, the outer annular recess 15 is composed of an outer first recess 17 and an outer second recess 18 having different depths. In addition, the inner annular recess 16 has an inner first recess 19 provided to be symmetrical with the outer first recess 17 and an inner second recess 20 provided to be symmetrical with the outer second recess 18. And consisted of When stacking the trays 1 containing the parts P, the trays 1 are alternately rotated 180 degrees and stacked in different directions, corresponding to the first recesses 17 and 19 of the upper tray 1. The outer protrusion 25 and the inner protrusion 26 are fitted in the second recesses 18 and 20 of the lower tray 1. And the back surfaces 17b and 19b of the projecting portions 25 and 26 provided symmetrically are connected to the bottom surfaces 18a and 2 of the second recesses 18 and 20, respectively.
It was made to contact 0a. For this reason, the tray 1 having the same shape can be stacked with the accommodating space S for accommodating the component P, and the entire outer periphery of the accommodating portion 3 can be shielded. Accordingly, it is possible to prevent dust and the like from entering the housing portion 3. Further, since the trays 1 having the same shape can be stacked, a member such as a lid is not necessary, and the number of parts can be reduced.

  (2) In the above embodiment, the outer first concave portion 17 and the outer second concave portion 18 are provided on each half circumference of the outer annular concave portion 15. In addition, the inner first recess 19 and the inner second recess 20 are provided on each half circumference of the inner annular recess 16. When stacking the trays 1 containing the components P, the trays 1 are alternately rotated 180 degrees to be stacked in different directions. For this reason, it is possible to provide a tray that can be stacked with a sealed housing space S with a simple configuration. Further, in the process of stacking a large number of trays 1, it is only necessary to rotate and stack each tray 1 by 180 degrees, so that it is not necessary to cover or align the positions, and work efficiency can be improved.

  (3) In the said embodiment, each 1st recessed part 17 and 19 and each 2nd recessed part 18 and 20 were formed in the taper shape. For this reason, when the trays 1 are stacked in the same direction, the protrusions of the first recesses 17 and 19 and the second recesses 18 and 20 become the first recesses 17 and 19 and the second recesses 18 and 20. Engage easily. Therefore, when the component P is not accommodated, the occupied space of the stacked trays 1 can be reduced. Further, when the trays 1 are stacked in different directions, the back surfaces 17b and 19b of the outer protrusions 25 and the inner protrusions 26 of the upper tray 1 are used as the bottom surfaces of the second recesses 18 and 20 of the lower tray 1. 18a and 20a can be easily brought into contact with each other.

  (4) In the above embodiment, the tray 1 is provided with the restriction portions 9 and 10 for restricting the downward movement of the tray 1 during stacking. That is, the downward movement of the tray 1 in the vertical direction is restricted by the fitting of the protrusions 25 and 26 and the second recesses 18 and 20 and the restriction portions 9 and 10. Therefore, since the fulcrum provided between the trays 1 can be increased, when a large number of trays 1 are stacked or when some external force is applied to the stacked trays 1, the space between the trays 1 is increased. Damage to the housed component P can be prevented.

  (5) In the above embodiment, the restriction portion 9 of the tray 1 is formed so as to be asymmetric with respect to the front outer wall portion 21a and the rear outer wall portion 21b. Further, the restricting portion 10 is formed to be asymmetric between the left outer wall portion 21c and the right outer wall portion 21d of the tray 1. Therefore, when the trays 1 are arranged in different directions and stacked, the restricting portions 9 and 10 of the upper tray 1 and the restricting portions 9 and 10 of the lower tray 1 are arranged at positions shifted from each other. Is done. Then, the restriction portions 9 and 10 of the upper tray 1 abut against the upper side wall 22 of the lower tray 1 to restrict the downward movement of the upper tray 1. For this reason, when the trays 1 arranged in the same direction are stacked, they can be stacked almost exactly without providing a storage space between the trays 1. Further, when the layers are alternately stacked in opposite directions, a sealed accommodation space S can be provided between the trays 1.

In addition, you may change this embodiment as follows.
-In above-mentioned embodiment, when the tray 1 is equipped with sufficient intensity | strength, you may abbreviate | omit the control parts 9 and 10 of the tray 1. FIG.

  -The tray 1 may be provided with a plurality of loop-shaped grooves. For example, four annular annular recesses may be formed outside the accommodating portion 3, and each annular groove may be formed from a first recess and a second recess having different depths. If it does in this way, in the outer periphery of the accommodating part 3, it can seal twice. Therefore, even when a minute gap that connects the inside and the outside of the housing portion is generated due to a molding error or the like for each tray, it is possible to prevent entry of dust or the like into the housing portion 3.

  -In the said embodiment, the planar shape of each 1st recessed part and 2nd recessed part provided in each semicircle of an annular recessed part is not limited to substantially U shape. For example, as shown in FIG. 15, the first recess and the second recess may be provided symmetrically with respect to the diagonal line of the rectangular tray 1. Specifically, the tray 30 includes an outer annular recess 31, and the outer annular recess 31 includes a substantially L-shaped outer first recess 34 along a right side surface and a lower side surface thereof. The outer annular recess 31 includes a substantially L-shaped outer second recess 33 along the left side surface and the upper side surface. Further, the tray 30 includes an inner first recess 36 provided in a substantially L shape symmetrically with the outer first recess 34 and an inner second provided in a substantially L shape symmetrical with the outer second recess 33. An inner annular recess 32 composed of the recess 35 is provided. At the time of stacking, when the tray 1 arranged in the forward direction is rotated 180 degrees and arranged in the reverse direction, and stacked on the other tray 1 in the forward direction, the protruding portions of the first recesses 34 and 36 are A housing portion (not shown) that is engaged with the second concave portions 33 and 35 and is provided inside the inner annular concave portion 32 is sealed.

  Each tray 1 may be configured such that a sealed accommodation space is formed between the trays 1 when the trays 1 are rotated and stacked in an angle range other than 180 degrees. In other words, the first recesses and the second recesses are not provided over 180 degrees on the outer periphery of the tray 1 and may be in an angle range other than 180 degrees. For example, the two opposite sides of the rectangular outer annular recess are the first recess and the other two opposite sides are the second recess. You may arrange only. In this case, when the tray rotated 90 degrees is overlapped with the other tray arranged in the forward direction, a sealed accommodation space is formed between the trays.

  Each annular recess may be composed of three or more grooves having different depths. For example, as shown in FIG. 16, first to fourth recesses 41 to 44 having different depths d1 to d4 may be provided in the outer annular recess of the square tray 40 (d1 <d2 <d3). <D4). The difference in depth between the first recess 41 and the third recess 43 and the difference in depth between the second recess 42 and the fourth recess 44 are made equal (that is, d3−3). d1 = d4-d2). Similarly, the inner annular recess is also composed of first to fourth recesses 41 to 44. Then, when the upper tray 1 is rotated 90 degrees in a predetermined direction (arrow direction in the drawing) of the first to fourth concave portions 41 to 44, the third concave portions 43 of the upper trays 40 are The fourth recess 44 of the upper tray 1 is disposed so as to engage with the second recess 42 in the first recess 41 of the lower tray 1. In addition, the engagement location between the third recess 43 and the first recess 41 and the engagement location between the fourth recess 44 and the second recess 42 are different at the outer annular recess and the inner annular recess, respectively. It is configured to be provided. Even if comprised in this way, when the trays are alternately stacked in different directions, it is possible to form an enclosed space between the trays.

  In the above embodiment, the tray 1 is a tray for accommodating the component P, but may be configured as a tray for accommodating other items. For example, it may be a container such as food, photosensitive film, medicine, paper, etc., and is not limited to parts.

  In the above embodiment, the tray 1 may be formed in an outer shape other than a rectangular shape. For example, it may be a polygon such as a square or a hexagon, or a circle. Further, the tray does not have to be plate-shaped, and may have a thickness larger than the thickness of the tray 1 and a box-like shape having a deep accommodating portion.

  In the above embodiment, the tray 1 can fix a plurality of components P, but may be a single tray. Moreover, the fixed part 5, the circular recessed part 6, and the rectangular recessed part 7 may be abbreviate | omitted, and another shape may be sufficient.

The perspective view of the tray of embodiment of this invention. The front view of the tray. The perspective view which looked at the tray from the back side. The perspective view which expanded the principal part of the tray. Sectional drawing of the principal part of the tray. Sectional drawing of the principal part of the tray. The principal part sectional view for explaining the outside annular crevice of the tray. The principal part sectional drawing for demonstrating the inner side annular recessed part of the tray. The perspective view of the same tray laminated | stacked on the same direction mutually. Sectional drawing of the principal part of the same tray laminated | stacked in the mutually same direction. The perspective view of the tray arrange | positioned in a mutually different direction. The perspective view of the same tray laminated | stacked on the mutually different direction. The side view of the same tray laminated | stacked on the direction which mutually differs. Sectional drawing of the principal part of the same tray laminated | stacked on the mutually different direction. The schematic diagram of the tray of another example. The schematic diagram of the tray of another example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,30,40 ... Tray, 3 ... Storage part, 9,10 ... Restriction part, 15,31 ... Annular recessed part, outer annular recessed part as outer recessed part, 16, 32 ... Annular recessed part as inner recessed part, 17, 34 ... Outer first recess as a recess, 18, 33 ... Outer second recess as a recess, 19, 36 ... Inner first recess as a recess, 22, 35 ... Inner second recess as a recess, 25 ... Outer protrusions as protrusions, 26... Inner protrusions as protrusions, 41 to 44... First to fourth recesses as recesses.

Claims (6)

A tray having a receiving portion,
Outside the housing part, provided with a plurality of loop-shaped recesses protruding in the back side,
Each annular recess is composed of a plurality of recesses having different depths, and
When the trays are stacked so as to be in different directions, the protrusions that form the recesses having the greater depth of the upper tray are deeper than the recesses provided in the lower tray. A tray that is engaged with each of the small concave portions to form a storage space in the storage portion and seals the storage space. A tray having a receiving portion,
An inner recess formed outside the housing portion, and an outer recess formed outside the inner recess,
The inner recess is composed of an inner first recess having a protrusion on the back surface side and an inner second recess having a depth smaller than the inner first recess,
The outer concave portion includes a protruding portion on the back surface side, the outer first concave portion formed at a position symmetrical to the inner first concave portion, and the protruding portion on the rear surface side, formed at a position symmetrical to the inner second concave portion. The outer second concave portion having a smaller depth than the outer first concave portion,
When the trays are stacked in different directions, the protrusions of the first recesses provided on the upper tray are engaged with the second recesses of the lower tray, and the storage is performed. A tray that is sealed in a state in which an accommodation space is provided in the section. The tray according to claim 2,
Each of the first recesses and each of the second recesses is provided on each half circumference of the inner recess and outer recess,
A tray in which the upper tray is stacked in a direction rotated by 180 degrees with respect to the lower tray. The tray according to claim 2 or 3,
The tray, wherein the first recess and the second recess are tapered. In the tray as described in any one of Claims 1-4,
A tray having a restricting portion for restricting the downward movement of the upper tray when the trays are stacked. The tray according to claim 5, wherein
When the trays are stacked in different directions, the tray restricting portions are arranged at asymmetric positions with respect to the upper or lower tray restricting portions, and are arranged below the trays. A tray characterized by restricting movement.

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