JP4547700B2 - Eye wash container - Google Patents

Description

  The present invention relates to a cup-shaped eyewash container that stores an eyewash solution and covers the periphery of the eye.

Patent Document 1 discloses an invention relating to an eyewash container in which a thin and elastically deformable portion (hereinafter referred to as a pressing portion) is formed on at least one of a bottom wall or a bottom wall of a container formed of an elastic resin in a cup shape. Is described. This eye wash container can be washed by repetitively applying pressure to the pressing part, and the liquid inside can be swung greatly, and can be washed with the face facing down, and it can be used conveniently without soiling clothes etc. be able to.
JP 2001-190635 A

The present invention further improves the operability of the eyewash container having the pressing portion as described above, has good operability, can quickly repeat the pressing operation, and further efficiently shakes the liquid greatly. It is an object of the present invention to provide an eyewash container that can be operated comfortably and that can perform effective eyewashing, with the creation of a pressing portion that can be made.

The means of the first invention for solving the above technical problem is that a part of the bottom wall is projected downward in a hollow bulging shape at the bottom of a cup-shaped container body that contains eyewash and covers the periphery of the eye. Forming a protruding portion that can be pressed elastically deformed in the lateral direction, forming a trough portion in this protruding portion,
It is in.

In the first aspect of the invention, the ergonomic operation is taken into consideration. During eye washing, the side wall of the container body is sandwiched with the fingertip of one hand, and the protruding portion is pinched with the fingertip of the other hand. Thus, it is possible to quickly repeat the pressing operation in the lateral direction while utilizing the elastic recoverability of the protruding portion. At this time, the posture of the pressing operation can be easily taken from the viewpoint of the positional relationship and operability of both hands. In the present invention, the lateral direction means a direction perpendicular to the up and down direction of the eyewash container, and can take various directions without being limited to front and rear and left and right.

  When the eyewash container of the present invention is used with the face facing downward and the container being in an upright posture so as to cover the periphery of the eye with the upper end opening, particularly the frequency of the eyewash liquid swinging on the liquid surface The cleaning effect is determined by the size of the eyewash, and conversely, the flow of the eyewash is used when the eye is immersed in the eyewash with the face facing up and the opening closely attached to the periphery of the eye. Since the cleaning effect is determined by the speed of the eye, etc., if the pressing operation can be performed quickly and repeatedly as described above, the flow of the eyewash in the container can be made faster and the oscillation at the liquid level can be increased. This enables efficient and effective cleaning. Here, the eye wash is not limited to a liquid used as a medicine, and water can also be used as an eye wash.

  Further, by forming a trough portion in the projecting portion to form a double mountain shape, the elastic recoverability of the projecting portion can be improved from the shape surface, and the repeated pressing operability of the projecting portion can be further improved.

The means of the first invention is that, in the second invention , the protrusion is made of an elastomer.

According to the above-described configuration of the second invention , by making the protrusions made of an elastomer having excellent elastic recovery, the elastic recovery of the protrusions can be further improved from the material surface, and repeated pressing operability of the protrusions Can be further improved.

  As the elastomer material, for example, thermoplastic polyolefin-based, polyester-based, urethane-based elastomers, ethylene-vinyl acetate copolymer (EVA) -based materials, and the like can be used.

  Here, it is also possible to form the entire eyewash container with an elastomer, but considering the retainability of the container, etc., at least the protrusion is made of an elastomer by an insert molding method or assembly of two members in post-processing. The container body can be made of a relatively hard synthetic resin. Further, when the container body is injection-molded using the protruding portion as an insert material, use of a rubber-based elastomer material such as NBR having excellent elastic recovery can be selected.

According to a third invention , in the first or second invention , the container body is made of a synthetic resin selected from low density polyethylene, polypropylene random copolymer, and ethylene vinyl acetate copolymer.

  The container body is made of low density polyethylene, polypropylene random copolymer, or ethylene vinyl acetate copolymer (EVA) resin in consideration of transparency or translucency, material cost, chemical resistance of eyewash, etc. It is preferable. Although the eye wash container can be integrally formed with these resins by forming the protrusions to be relatively thin, it is preferably made of EVA resin from the viewpoint of elastic recovery of the protrusions.

The present invention has the above-described configuration, and has the following effects.
The first aspect of the invention considers an ergonomic operation surface, can easily take the posture of the pressing operation, and can pick up the protruding portion with the fingertip and repeat the pressing quickly in the lateral direction.

  In addition, by forming a trough portion in the projecting portion, the elastic recovery property of the projecting portion can be improved from the shape surface, and the repeated pressing characteristics of the projecting portion can be further improved.

In the second invention , by making the protruding portion made of an elastomer excellent in elastic recovery property, the elastic recovery property of the protruding portion from the material surface can be further improved, and repeated pressing operability of the protruding portion. Can be further improved.

In the third invention , the container body is made of low density polyethylene, polypropylene random copolymer, or ethylene vinyl acetate copolymer (EVA), so that the eyewash container is transparent or translucent and inexpensive. Moreover, it can be set as the chemical-resistant container which concerns on an eyewash.

Embodiments of the present invention will be described below with reference to the drawings.
FIGS. 1 to 5 show a first embodiment of the eyewash container of the present invention. The container body 1 (see FIG. 2) made of injection-molded low-density polyethylene is used as an insert material and is made of a thermoplastic elastomer. This is obtained by injection molding the pressing portion 6 on which the protruding portion 7 is formed.

  The container body 1 has a bottomed cylindrical shape having a large bottom circular opening at the bottom bottom wall 4, and has a flat cross-sectional shape of an ellipse. It is said. Further, through holes 4a for fitting by insert molding are formed at eight locations along the opening edge of the bottom wall 4. In this embodiment, a pair of fitting pieces 3a are attached to two portions symmetrical to the central axis in the portion from the lower end portion of the side wall 3 to the bottom wall 4 of the container body 1, and the eyewash container is a housing containing the eyewash solution. It is made to fit in the B tube part so that it can be used as an overcap (see FIG. 5).

  Further, the pressing portion 6 has a disc-like substrate 9 formed with a projecting portion 7 formed in a downwardly projecting manner by forming a trough portion 8 to form a double mountain shape. Thus, by forming the trough part 8 and making it a double mountain shape, after pressing in the horizontal direction, the protrusion part 7 can be elastically recovered to the original shape more quickly. In other words, the pressing portion 6 of this embodiment can be elastically recovered in a short time by combining the material effect of being made of elastomer and the shape effect of the protruding portion 7.

  As described above, the eye wash container of the present embodiment is formed by injection molding the pressing portion 6 using the container body 1 as an insert material. FIG. 3A shows the structure of the joint portion 5 by insert molding. In particular, since the pressing portion 6 is formed through the through hole 4a formed in the bottom wall 4 of the container body 1, the pressing portion 6 can be firmly joined to the container body 1 without rattling, The opening of the bottom wall 4 of the container body 1 can be covered in a liquid-tight manner.

  FIG. 4 shows an example of the usage state of the present embodiment. In the posture in which the face is directed downward, the peripheral portion of the opening 2 is set to the peripheral portion of the eye from below in the container body 1 in the upright posture. The pressing is repeated by making light contact, holding the side wall 3 portion of the container body 1 with the fingertip of one hand, and pinching the protruding portion 7 of the pressing portion 6 with the fingertip of the other hand.

  At this time, the container body 1 is made of low-density polyethylene, so that the rigidity of the container body 1 is sufficiently secured, and the side wall 3 portion is deformed by the force of the fingertip and the eyewash L is not spilled. , Can be held in a stable posture.

  Further, in the pressing operation, the protruding portion 7 can be grasped with the fingertip and can be easily pressed in the lateral direction by the operation of only the fingertip (see the direction of the white arrow in FIG. 4). The posture of the pressing operation can be easily taken ergonomically, and since the pressing operation can be repeated by quickly moving the fingertip, the eyewash L is effective in combination with the material and shape effect of the pressing portion 6 described above. Can be swung and fluidized, and a high cleaning effect can be obtained with comfortable operability.

  4 shows a state in which the protruding portion 7 is picked in the front-rear direction with the fingertip, but the user can also operate by turning the hand from the back of the container and picking in the left-right direction with the fingertip according to operability. Can be picked from various directions. Further, in this embodiment, the projecting portion 7 is divided into left and right by the trough portion 8 formed in the front-rear direction, but considering the overall operability, the trough portion 8 is formed in the left-right direction. You can also.

  FIG. 6 shows a second embodiment of the eyewash container of the present invention, which is an integral injection-molded product made of an ethylene vinyl acetate copolymer (EVA) resin. The shape of the protruding portion 7 is such that the valley portion 8 is formed relatively shallow compared to the first embodiment, and a recess is also formed in the front-rear direction from the viewpoint of improving elastic recovery. The integral formability can be improved by making the valley portion 8 shallow.

In addition, the cross-sectional shape, thickness, diameter, height, etc. of the wall of the protruding portion 7 are easy to pinch with a fingertip, easy to press, elastic recovery, the amount of liquid movement with one press, It can be determined as appropriate in conjunction with the selection of the materials used in consideration of the liquid swaying properties. Further, the shape of the valley portion 8 can be selected in various ways, a plurality of valley portions 8 can be formed, and a shape without the valley portion 8 can also be selected.

As described above, the container of the present invention is designed so that pressing of the pressing portion can be repeated quickly in terms of shape and ergonomic operation, and achieves a high cleaning effect with comfortable operability. It is expected to be used more widely as an eyewash container.

It is a whole perspective view which shows 1st Example of the eyewash container of this invention. It is the (a) vertical front view and (b) bottom view which show the container main body of the eyewash container of FIG. It is the (a) vertical front view and (b) bottom view which show the eyewash container of FIG. It is explanatory drawing which shows an example of the use condition of the eyewash container of FIG. It is explanatory drawing which shows the state which attached the eyewash container of FIG. 1 to the opening part of the housing. It is (a) vertical front view and (b) bottom view which show 2nd Example of the eyewash container of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Container body 2; Opening part 3; Side wall 3a; Fitting piece 4; Bottom wall 4a; Through-hole 5; Joint part 6; Press part 7; Protrusion part 8: Valley part 9; Eyewash B: Body

Claims (2)

At the bottom of the cup-shaped container body (1) that contains the eyewash (L) and covers the periphery of the eye, a part of the bottom wall (4) protrudes downward in a hollow bulging shape, An eye-washing container having a knob-like elastically deformable projecting portion (7), and a trough portion (8) formed in the projecting portion (7) to form a double mountain shape. The eyewash container according to claim 1, wherein the container body (1) is made of a synthetic resin selected from low density polyethylene, polypropylene random copolymer, and ethylene vinyl acetate copolymer.

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