JP4641782B2 - All resin compact - Google Patents

Description

  The present invention relates to an all-resin compact suitable for putting cosmetics such as foundations and eye shadows, and is intended to improve the durability of the hinge part connecting the container body and the lid. At the same time, it is intended to effectively avoid the generation of squeaking noise and wear powder that tend to occur when the lid is opened and closed.

  The compact used for putting cosmetics or the like has a relatively simple structure in which a container body having a storage space for loading contents and a lid body fitted to the container body are combined. Is swingably held via a simple hinge in which a pin integrally provided on one of the container body and the lid is forcibly fitted in a split groove formed on the lid or the container body. Was normal.

  By the way, in the conventional compact having a simple hinge, the lid and the container main body are made of similar materials (AS, ABS resin, etc.), and the lid is stopped at an arbitrary position by the sliding operation at the simple hinge. If you have a free stop function to keep it open, when the lid opens and closes, a squeaking noise will be generated from the hinge part, and there is a concern that the resin will be scraped off at that part and wear powder will come out, In the case of long-term use, the fitting part of the simple hinge may become familiar and the free stop function may not be performed.

  In order to deal with such a conventional problem, through holes are provided on both sides of the container main body and the lid body, and resin pivot shafts (hinge pins) are respectively inserted and fitted into the through holes. The thing of the structure tightened together is known (for example, refer patent document 1).

JP 11-285411 A

  Since the compact having such a structure can adjust the degree of fitting in the through hole by tightening the pivot shaft, there is an advantage that the free stop function can be maintained over a long period of time when compared with a compact having a simple hinge, Since the pivot shaft has an increased contact area at the fitting portion of the pivot shaft, there is a concern that the frictional force at the time of sliding will be excessive and affect the durability of the pivot shaft. . In addition, when olefinic resins (PE, PP, etc.) are used for the pivot shaft, there is a disadvantage that the strength against torsional deformation is insufficient, and when olefinic resins are used instead of PET resins, stagnation noise is still present. The occurrence was inevitable.

  The object of the present invention is to propose a new compact that can improve the durability of the hinge part that connects the container body and the lid, and can avoid the occurrence of squeaking noise and wear powder that has occurred with the opening and closing of the lid. By the way.

The present invention is an all-resin compact in which all constituent members are synthetic resins,
A container body having a cosmetic storage space and a lid for sealing the storage space together with the container body, and swinging the lid with respect to two ends provided on the left and right sides of the container body With two pivots holding it possible,
Of the two pivot shafts , one pivot shaft is composed of a pin that is provided integrally with the container body or the lid body and forcibly fits into a split groove formed in the lid body or the container body,
The other pivot shaft is an all-resin compact characterized by comprising resin insertion pins that pass through the container body and the lid and connect them together.

In the all-resin compact having the above-described configuration, the shaft portion of the insertion pin can be provided with a free-stop function for tightening the through-hole and stopping the lid at an arbitrary position. The insertion pin may include a first shaft portion having a circular cross section and a second shaft portion having a polygonal cross section connected thereto.

  The insertion pin is preferably made of a material different from that of the container main body and the lid, and a resin selected from POM, PBT, or Ny can be applied.

  Since the lid is swingably supported by two types of pivot shafts: a pin that is integrally formed to fit the split groove and an insertion pin that penetrates the container body and the lid and connects them together, wear caused by sliding The generation of powder is extremely reduced and the free stop function can be maintained for a long time without generation of stagnation.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is an external perspective view showing a compact embodiment according to the present invention, and FIG. 2 is a cross-sectional view showing a main part of FIG.

  In the figure, reference numeral 1 denotes a container body that forms a storage space for cosmetics, 2 denotes a lid body that fits the container body 1 and seals the storage space, and 3 denotes a lid body 2 that is swingably held with respect to the container body 1. Is the pivot axis.

The pivot shaft 3 is forcibly fitted into the insertion pin 3a inserted into the through holes 1a and 2a provided in the container body 1 and the lid body 2 and the split groove 2b of the lid body 2 provided integrally with the container body 1. compatible pin 3b has become from two, of which the insertion pin 3a and a second shaft portion 3a ₂ become polygonal cross section connected thereto with the first shaft portion 3a ₁ formed of a circular cross-section Te .

In the compact having the above-described configuration, one hinge part is a conventional simple hinge comprising an integrally formed pin 3b and a split groove 2b that fits and fits into the pin 3b, but the other has a circular cross section. Since the insertion pin 3 having the first shaft portion 3a ₁ having the above is disposed, the wear powder generated in the simple hinge is reduced, and the free stop function is maintained by the insertion pin 3 even if the wear progresses at that portion. The

The second shaft portion 3 a ₂ of the insertion pin 3 has a polygonal cross section and does not rotate in the through hole 1 a of the container body 1, and only the first shaft portion 3 a ₁ is the through hole 2 a of the lid body 2. Since they are rubbed together (to provide a free stop function by tightening here), the contact area can be reduced (reduction of frictional resistance), and force that causes torsional deformation does not act on the insertion pin 3 .

  The container body 1 and the lid body 2 can be made of resin such as AS, ABS, etc. In this case, the insertion pin 3 reduces the degree of progress of friction and eliminates squeak noise (strength and slipperiness). It is appropriate to use a material different from that of the container body 1 and the lid 2, for example, a resin such as POM (polyoxymethylene), PBT (polybutylene terephthalate) or Ny (nylon). These resins are superior in mechanical properties, exhibit strength against stresses such as torsion, and have good sliding compared to olefin resins such as PE and PP, and PET that have been used in conventional insertion pins. By using the insertion pin 3 formed of these resins, it is possible to obtain an all-resin compact having excellent durability and usability.

The insertion pin 3 is not limited to the one shown in FIG. 1 in which the second shaft portion 3a ₂ having a polygonal cross section is inserted into the through hole 1a of the container body 1, and is configured as shown in FIG. The second shaft portion 3a ₂ may be inserted through the through hole 2a of the lid 2, and this point is not particularly limited.

  It is possible to provide an all-resin compact that is easy to use and can maintain a free-stop function for a long period of time, with no squeaking noise or generation of abrasion powder when the lid is opened and closed.

It is the figure which showed embodiment of the compact according to this invention. (A) (b) is sectional drawing of the principal part of the compact shown in FIG. It is an external appearance perspective view concerning other embodiment of an insertion pin.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container body 1a Through-hole 2 Lid body 2a Through-hole 2b Split groove 3 Pivoting shaft 3a Insertion pin 3b Pin

Claims (5)

It is an all-resin compact with all components made of synthetic resin,
A container body having a cosmetic storage space and a lid for sealing the storage space together with the container body, and swinging the lid with respect to two ends provided on the left and right sides of the container body With two pivots holding it possible,
Of the two pivot shafts , one pivot shaft is composed of a pin that is provided integrally with the container body or the lid body and forcibly fits into a split groove formed in the lid body or the container body,
The other pivot is made of a resin-made insertion pin that penetrates the container body and the lid and connects them to each other.   The all-resin compact according to claim 1, wherein the shaft portion of the insertion pin has a free stop function for stopping the lid at an arbitrary position. The all-resin compact according to claim 1, wherein the insertion pin includes a first shaft portion having a circular cross section and a second shaft portion having a polygonal cross section connected thereto. The all-resin compact according to any one of claims 1 to 3, wherein the insertion pin is made of a material different from that of the container body and the lid. The all-resin compact according to claim 4, wherein the insertion pin is a resin selected from POM, PBT, and Ny.

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