JP5064769B2 - Compact container - Google Patents

Description

  The present invention relates to a compact container that realizes a stable free stop function by a frictional action using the rotation of a hinge piece of a container body and a hinge block of a lid.

  The hinge pin is inserted into a pin hole formed in a series on the hinge piece of the container body and the hinge block of the lid body, and the lid body is removed using the rotational friction between the pin hole and hinge pin of the container body and the pin hole and hinge pin of the lid body. For example, Patent Documents 1 and 2 are known as a compact container that realizes a free stop function for holding at an arbitrary position.

  In the “compact container” of Patent Document 1, when the center axis of the pair of left and right hinge shaft insertion holes is provided so as not to overlap on the same straight line and the lid body is rotated, the lid body is supported on both sides by the deviation. A free-stop function is realized by causing deformation of the hinge shaft to bend and increasing the frictional resistance between the hinge shaft insertion hole and the hinge shaft.

In Patent Document 2, a free stop function is obtained by a frictional resistance generated between the hinge shaft and the shaft hole surface by a groove provided in the shaft member and the elasticity of the buffer member.
JP 2005-124635 A JP 2003-70530 A

  In Patent Document 1, since the hinge shaft insertion hole is formed in the container body and the lid body with an inclination, it takes time for molding and accuracy is also required. Further, since the hinge shafts are inserted obliquely through the two hinge shaft insertion holes, the assembly efficiency is lowered. Further, in order to generate flexibility of the entire hinge shaft when the lid is rotated, it is necessary to apply pressure to generate a frictional resistance so that the hinge shaft is fixed in the hinge shaft insertion hole. For this reason, it takes time to assemble.

  On the other hand, in patent document 2, since a groove part is provided in a hinge pin and a coating is applied to the outer peripheral surface, it takes time for molding. Further, since the hinge pin has frictional resistance with the insertion hole, it is necessary to apply pressure and push it in, which takes time for assembly. Furthermore, since both techniques of Patent Document 1 and Patent Document 2 realize a free stop function by the frictional resistance between the hinge shaft and the hinge shaft insertion hole or the hinge shaft and the shaft hole surface, the lid is large and heavy. In some cases, it was difficult to maintain the free stop function for a long time with these mechanisms alone.

  The present invention was devised in view of the above conventional problems, and is a mechanism that is easy to process and assemble, and can realize and maintain a free stop function even when the weight of the lid is large. An object is to provide a compact container.

In the compact container according to the present invention, a hinge pin is inserted into a pin hole formed in a series over a pair of hinge pieces formed on the container body and a hinge block formed between the hinge pieces. In the compact container in which the lid is rotatably provided on the container body, the hinge pins are inserted between the hinge blocks facing each other and at least one of the hinge pieces. An O-ring that imparts rotational friction to the lid body by rotational frictional force generated between the hinge block and the hinge piece by elastic deformation in the thickness direction due to clamping pressure between the block and the hinge piece, the hinge block, and the hinge piece And a holding portion that is provided around one of the pin holes and holds the position of the O-ring.

In the compact container according to the present invention, a stable free-stop function can be realized by the frictional action using the rotation of the hinge piece of the container body and the hinge block of the lid. Specifically, the lid can be moved to an arbitrary position by utilizing the rotational friction force between the O-ring and the hinge piece and the hinge block generated by elastic deformation in the thickness direction of the O-ring provided between the hinge piece and the hinge block. Therefore, the free stop function can be strengthened by the rotational friction force obtained by the O-ring, and the free stop function can be easily secured even when the lid is heavy. Furthermore, by changing or replacing the O-ring of another part, a free stop function corresponding to the weight change of the lid can be easily realized, and it is possible to cope with diversification of products. The O-ring can be held by the holding portion, and even when the hinge block is inserted between the hinge pieces while sandwiching the O-ring, the O-ring does not move or drop off, and the assembly can be performed efficiently.

Hereinafter, a preferred embodiment of a compact container according to the present invention will be described in detail with reference to the accompanying drawings. As shown in FIGS. 1 to 3, the compact container 1 according to the present embodiment is basically formed between a pair of hinge pieces 3 formed on the container body 2 and a lid body 4 between the hinge pieces 3. In the compact container 1 in which the hinge pin 7 is inserted into the pin hole portions 6a and 6b formed in series over the hinge block 5 disposed on the container body 2 so that the lid body 4 is rotatably attached to the container body 2. A hinge pin 7 is inserted between the hinge block 5 and the pair of hinge pieces 3 facing each other, and the hinge block 5 and the hinge pieces are elastically deformed in the thickness direction by the pressure between the hinge block 5 and the hinge piece 3. 3 is provided with an O-ring 8 that imparts rotational friction to the lid 4 with rotational frictional force generated between the O-ring 3 and a holding portion 9 that is provided around the pin hole 6 a of the hinge piece 3 and holds the position of the O-ring 8. Configuration It is.

  The container body 2 is formed of a synthetic resin material, and a recess 14 is formed at the center of the front surface portion 13a of the peripheral wall 13 that defines the storage recess 12 for storing the decorative dish 11. A hook piece 15 is attached to the recessed portion 14 to push up the lid body 4 by rotating and release the latching between the lid body 4 and the container body 2. On the front surface portion 13 a of the peripheral wall 13, a hook projection 20 that protrudes into the recess 14 and locks the lid 4 to the container body 2 is formed. A pair of hinge pieces 3 are integrally formed on the rear surface portion 13b of the peripheral wall 13 so as to protrude rearward from the left and right ends. Each hinge piece 3 is formed with a pin hole portion 6a for penetrating them in the left-right direction and supporting a pair of left and right hinge pins 7 inserted therein.

  The lid 4 to which the end plate 16 is attached to the lower surface side is also formed of a synthetic resin material, and the planar outline of the lid 4 is superimposed on the container body 2 so that the lower surface is the upper end of the peripheral wall 13 of the container body 2. Is formed so as to substantially coincide with the planar outer contour of the container body 2. Thereby, the front end 4a of the lid body 4 covers the concave portion 14 of the container body 2 from above. A hook piece 21 is formed at the front end 4 a of the lid body 4 so as to hang down along the front surface portion 13 a of the peripheral wall 13. The hook piece 21 is engaged with the hook protrusion 20. A hinge block 5 is integrally formed at the rear end 4b of the lid 4 so as to hang from the lower surface between the hinge pieces 3.

  The hinge block 5 is formed with pin hole portions 6b into which the hinge pins 7 are inserted from the center side in the left-right direction toward both left and right end portions. And the pin hole part 6a and the pin hole part 6b of the left-right hinge piece 3 are connected in series in the left-right direction, and the hinge pin 7 is inserted, whereby the lid body 4 that opens and closes the container body 2 rotates. Can be attached freely.

  Around each pin hole portion 6a facing the hinge block 5 of the left and right hinge pieces 3, a holding portion 9 for holding an O-ring 8 is integrally projected and formed. The holding part 9 is a cylindrical convex part concentric with the pin hole part 6a, and the pin hole part 6a passes through the center part thereof. An O-ring 8 is attached to and held by the holding portion 9 in close contact with the outer periphery thereof. Therefore, the hinge pin 7 is inserted into the O ring 8 in this embodiment through the holding portion 9. The O-ring 8 is formed of a rubber material or a synthetic resin material that is elastically deformed by the clamping pressure between the hinge piece 3 and the hinge block 5. Thereby, an appropriate rotational frictional force is set between the O-ring 8 and the hinge piece 3 and the hinge block 5. The thickness of the O-ring 8 is such that the holding portion 9 does not contact the hinge block 5 when the O-ring 8 is sandwiched between the hinge piece 3 and the hinge block 5 and elastically deformed in the thickness direction. Is set as follows. The O-ring 8 sets the required rotational friction force between the lid 4 and the container body 2 by changing the elastic coefficient, the smoothness of the surface, and the size of the contact surface with the hinge piece 3 and the hinge block 5. Is done. For this reason, it is possible to easily obtain the rotational friction force corresponding to the difference in the weight of the lid body 4 only by changing the O-ring 8, and the free stop function can be easily realized.

  In the present embodiment, the sliding contact portion 10 of the O-ring 8 is formed as a step portion around the left and right pin hole portions 6b of the hinge block 5. The step amount of the sliding contact portion 10 is set smaller than the thickness of the O-ring 8 when elastically deforming. The sliding contact portion 10 is formed in a range in contact with the O-ring 8 from the lower end portion of the hinge block 5. The hinge block 5 is disposed between the hinge pieces 3, and the O-ring 8 is clamped and elastically compressed by the sliding contact portion 10 and the hinge piece 3, thereby rotating friction between the O-ring 8 and the hinge block 5 and the hinge piece 3. Force is generated.

  The operation of the compact container 1 according to this embodiment will be described. The container body 2 is resin-molded by integrating the hinge piece 3 having the pin hole portion 6a and the holding portion 9. The hinge block 5 having the pin hole portion 6b and the sliding contact portion 10 is integrated to mold the lid body 4 with resin. Then, O-rings 8 are respectively mounted on the holding portions 9 of the left and right hinge pieces 3 formed. The hinge block 5 is inserted between the hinge pieces 3 while the O-ring 8 is clamped and elastically deformed between the sliding contact portion 10 of the hinge block 5 and the hinge piece 3, and the pin hole 6a and the pin hole 6b are moved in the left-right direction. Communicate in series. Hinge pins 7 are inserted from the left and right pin hole portions 6a to the pin hole portions 6b, respectively, and the container body 2 and the lid body 4 are rotatably connected by the hinge pins 7 to assemble the compact container 1.

  When the lid 4 of the closed compact container 1 is opened, the hook piece 15 of the concave portion 14 of the container body 2 is pushed in and rotated, thereby pushing the lid 4 upward and the hook piece 21 to the hook projection 20. Release from the lock. Next, the lid 4 is rotated about the hinge pin 7 against the rotational frictional force between the clamped O-ring 8 and the hinge piece 3 and the hinge block 5 to be in an open state. The lid 4 in the open state is held in an open state at an arbitrary position by a frictional force between the elastically deformed O-ring 8 and the hinge piece 3 and the hinge block 5 to realize a free stop function. In the closed state, the opened lid body 4 is pivoted about the hinge pin 7 against the rotational friction force between the O-ring 8, the hinge piece 3 and the hinge block 5 and pushed down. When the lid body 4 is closed and brought into contact with the container body 2, the hook piece 21 of the lid body 4 engages with the hook projection 20 of the peripheral wall 13 and the lid body 4 is in a closed state.

  As described above, in the compact container 1 according to the present embodiment, the rotational frictional force between the pin hole portions 6a and 6b and the hinge pin 7 is used, and at the same time, the compact container 1 is provided between the hinge piece 3 and the hinge block 5. Since the lid 4 is held at an arbitrary position by utilizing the rotational friction force between the O-ring 8 and the hinge piece 3 and the hinge block 5 generated by elastic deformation in the thickness direction of the O-ring 8, the background art In comparison with this, the rotational frictional force between the hinge pin 7 and the hinge holes 6a, 6b can be reduced, the insertion pressure of the hinge pin 7 into the pin holes 6a, 6b can be reduced, and the assembling work is facilitated. Moreover, the free stop function can be strengthened by the rotational frictional force obtained by the O-ring 8, and the free stop function can be easily secured even when the lid 4 is heavy. Furthermore, by changing or replacing the O-ring 8 which is a separate part, a free stop function corresponding to the weight change of the lid 4 can be easily realized, and it is possible to cope with diversification of products.

  In the present embodiment, the O-ring 8 can be held by the holding portion 9, and the O-ring 8 may move or drop even when the hinge block 5 is inserted between the hinge pieces 3 while sandwiching the O-ring 8. And can be assembled efficiently.

  FIG. 4 shows a modification of the above embodiment. In the present embodiment, the holding portion 9 is provided on the hinge block 5. The holding part 9 is formed as a circular recess provided around the pin hole 6b. The outer diameter of the holding portion 9 is set slightly wider than the outer diameter of the O-ring 8 so that the O-ring 8 can be accommodated. Therefore, in the present embodiment, the hinge pin 7 is directly inserted into the O-ring 8. The depth of the holding portion 9 is set so that the hinge block 5 does not abut against the hinge piece 3 in a state where the hinge block 5 is disposed between the hinge pieces 3.

  In this embodiment, it is not necessary to provide the holding part 9 in the hinge piece 3, and shaping | molding of the hinge piece 3 is simplified. Further, since the O-ring 8 can be held only by being inserted into the holding portion 9, the mounting operation is easy, and the position of the O-ring 8 can be reliably held. Further, most of the O-ring 8 is concealed in appearance, and the appearance is improved. Even in such a modification, it is needless to say that the same effects as those of the above-described embodiment can be obtained. The holding portion 9 of the hinge block 5 may be provided as a cylindrical convex portion concentric with the pin hole portion 6 b, and a stepped portion may be provided as the sliding contact portion 10 on the hinge piece 3.

  In the above embodiment, the O-ring 8 is provided between the left and right hinge pieces 3 and the hinge block 5, but the O-ring 8 is provided only between the left and right hinge pieces 3 and the hinge block 5. May be provided. Although the O-ring 8 has a circular shape, it may have another annular shape, and the holding portion 9 may be formed in a groove shape corresponding to the O-ring 8.

It is side sectional drawing which shows suitable one Embodiment of the compact container concerning this invention. It is a principal part rear view of the compact container of FIG. It is a principal part perspective view which shows the assembly procedure of the container main body and lid of the compact container of FIG. It is a principal part perspective view which shows the modification of the compact container concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Compact container 2 Container body 3 Hinge piece 4 Cover body 5 Hinge block 6 Pin hole 7 Hinge pin 8 O-ring 9 Holding part

Claims (1)

A hinge pin is inserted through a pin hole formed in a series over a pair of hinge pieces formed on the container body and a hinge block formed on the lid body and disposed between the hinge pieces. In a compact container provided with a freely rotatable lid, the hinge pin is inserted between the hinge blocks facing each other and at least one of the hinge pieces, and the clamping pressure between the hinge blocks and the hinge pieces is provided. An O-ring that imparts rotational friction to the lid body by rotational frictional force generated between the hinge block and the hinge piece due to elastic deformation in the thickness direction due to, and a pin hole of one of the hinge block and the hinge piece. A compact container comprising a holding portion provided around and holding the position of the O-ring.

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