JP5047150B2 - Coating material extrusion container - Google Patents

Description

  The present invention relates to a coating material extrusion container for extruding and using a coating material.

  Conventionally, the technique of the following patent document 1 is known as an application filler extrusion container for extruding and using an application filler. The technique described in Patent Document 1 includes a filling member that has a cylindrical shape and has a discharge port at the tip and is filled with a filling material for coating, and engages with the filling member in the rotational direction around the axis and in the axial direction. A main body cylinder that is engaged and integrated, a moving body that has a male screw on the outer peripheral surface and moves forward to eject the coating filler from the discharge port, and a female screw that engages with the male screw of the moving body. A female screw member (screw cylinder) that has an inner peripheral surface and engages and integrates with the main body cylinder in the rotation direction and the axial direction, and engages with the internal shape and rotation direction of the movable body and is movable in the axial direction. A movable body and an anti-rotation portion with a shaft body having an external shape that engages with the main body cylinder, and an operation cylinder that engages in the axial direction so as to be relatively rotatable with the main body cylinder, and constitutes the container rear portion When the operating cylinder and the filling member constituting the container front portion are relatively rotated, the female screw of the female screw member And mobile engagement portion consisting of a male thread of the moving body acts is one that the coating material of the forward and the container is emerging from the opening of the container tip. In this way, the female screw member has a female screw threadedly engaged with the male screw of the moving body on the inner peripheral surface, and has a function of moving the moving body.

  The female screw member integrally includes an outer cylinder and an inner cylinder that are formed in a cylindrical shape and are coaxially arranged, and a connecting portion that connects them, and the inner cylinder is disposed in the outer cylinder and is connected to the outer cylinder. The connecting portion is formed in an annular shape to connect the distal end portion of the outer cylinder and the distal end portion of the inner cylinder, and the inner cylinder has an axial direction from the distal end side of the inner peripheral surface thereof. A female screw extending partway is formed, and an annular space is provided between the outer cylinder and the inner cylinder on the rear side of the connecting portion and opened to the rear side.

Such a female screw member is generally manufactured by injection molding using a resin. In this injection molding, it is configured in a columnar shape, a core pin (mold; inner mold) having a male screw corresponding to the female screw on the inner peripheral surface of the inner cylinder on the outer peripheral surface, and a cylindrical shape configured as an outer cylinder. An annular convex portion corresponding to the space between the inner peripheral surface and the inner cylinder outer peripheral surface is provided at the peripheral edge of the tip surface, and a convex portion corresponding to a portion on the rear side from the female screw on the inner peripheral surface of the inner cylinder is provided at the tip. An inner mold (mold) provided at the center of the surface and an outer mold (mold) having a shape corresponding to the outer peripheral surface of the outer cylinder on the inner peripheral surface are prepared, and the molten resin is poured into the gap between the molds and solidified. A method of obtaining the female screw member by releasing the mold later is generally adopted.
JP 2006-136421 A

  By the way, in the said coating material extrusion container, the coating material extrusion container provided with a functional structure is calculated | required.

The present invention has been made to solve such problems, and an object thereof is to provide a coating material extruding container having a functionality configuration.

The coating material extruding container according to the present invention includes a female screw member and a moving body in the container, and the female screw and the moving body provided on the inner peripheral surface of the female screw member by relative rotation between the container front portion and the container rear portion. In the coating material extrusion container in which the screwing part consisting of male screws provided on the outer peripheral surface works to move the moving body and the coating material in the container emerges from the opening at the tip of the container, the container front part is constructed and the coating material is filled Rotating synchronously with the filling member and the movable body around the axis line and engaged so as to be movable in the axial direction, and engaged and integrated with the rear part of the container in the rotational direction and axial direction around the axis line The rear portion of the container has an engaging claw piece projecting from the bottom so as to extend in the axial direction, and the engaging claw piece engages with the bottom portion of the rotation preventing member. The rotation stop member engages the container rear portion in the axial direction and Engages in the rotational direction, the rotation stop member includes a front engaging portion that engages the filling member rotatable relative to the axial direction, after engaging the outer tube to the relatively rotatable axially of the female screw member A slit extending inwardly from the position of the peripheral edge of the bottom so as to sandwich the engagement position between the engagement portion on the side and the engagement claw piece on the rear side of the container, and the bottom portion sandwiched between the slits of the anti-rotation member A notch-like portion provided in front of the bottom portion so as to be separated from the cylindrical portion in front of the bottom portion in the axial direction, and connected to both slits of the anti-rotation member. Thus, the bottom portion is a peninsula portion that is flexible in the axial direction, and the rear end surface of the peninsula portion has a convex portion that comes into contact with the rear portion of the container .

According to such a coating material extruding container, the movable body rotates in synchronization with the periphery of the axis and engages so as to be movable in the axial direction, and engages in the rotational direction and axial direction with respect to the rear portion of the container. The anti-rotation member integrated with the front side engages the filling member filled with the coating material in the axial direction so as to be relatively rotatable, and the rear side engagement. the parts, the barrel of the female screw member female thread that is provided on the inner circumferential surface engages a relatively rotatable axially Thus, the rotation stopping member, both of the filling member and the female screw member It is possible to provide a coating material extruding container having a functional configuration in which the members are engaged in the axial direction so as to be relatively rotatable. In addition, the peninsula portion of the anti-rotation member has flexibility in the axial direction by providing a notch-like portion and a slit in the anti-rotation member, so that the convex portion of the rear end surface of the peninsula portion is at the bottom of the container rear portion. In the abutted state, the container is pressed against the rear side of the container by the engaging claw piece at the rear side of the container without rattling.

Here, the female screw member is formed by integrally forming an inner cylinder, which is substantially coaxial with the outer cylinder and disposed inside, and a part or all of the inner cylinder is located in the outer cylinder. A space portion that is open to one side in the axial direction is annularly provided between the inner cylinder and the inner cylinder, and the inner cylinder is provided on the inner peripheral surface of the inner cylinder, and is formed from one side in the axial direction. An extending female screw and a slit that extends in the axial direction and communicates with the inner and outer sides in the radial direction, and the outer cylinder rotates on the outer peripheral surface in synchronization with the filling member and the axis. It is characterized by having a joint.

  According to such a coating material extruding container, for example, a male pin corresponding to the female screw on the inner peripheral surface of the inner cylinder and a core pin (inner mold) having a protrusion corresponding to the slit on the outer peripheral surface, and an inner peripheral surface of the outer cylinder From the one side of the outer mold having an inner peripheral surface with a shape corresponding to the outer peripheral surface of the outer cylinder, and an intermediate mold having an annular convex portion corresponding to the annular space between the outer cylindrical surface and the inner cylindrical outer peripheral surface. When inserting and pouring the molten resin into the gap between the molds and releasing the mold after solidification, the inner cylinder spreads radially outward by the slit of the inner cylinder by pulling out the core pin and pulling out the core pin. By pulling out the middle die before the core pin, it is possible to adopt a female screw member molding method that does not prevent the inner cylinder from spreading radially outward and can be pulled out without damaging the female screw. , Female screw with a configuration that can handle excessive force It can provide a coating material extruding container having a member.

Thus, according to the coating material extruding container according to the present invention, it is possible to provide a coating material extruding container that has a functional configuration and can press the peninsula portion of the rotation stopping member to the container rear side without backlash .

  Hereinafter, a preferred embodiment of a coating material extruding container according to the present invention will be described with reference to FIGS. In each figure, the same symbols are attached to the same elements, and duplicate descriptions are omitted.

  1 and 2 are longitudinal sectional views showing states of a coating material extruding container according to an embodiment of the present invention. FIGS. 3 and 4 are views showing a main body cylinder and a rotation stop member, and FIGS. 6 is each figure which shows a rotation stop member, FIGS. 7-10 is each figure which shows a female screw member, FIG.11 and FIG.12 is each figure for demonstrating the shaping | molding method of a female screw member.

  Here, as the coating material, for example, lip gloss, lip, eye color, eyeliner, cosmetic liquid, cleaning liquid, nail enamel, nail care solution, nail remover, mascara, anti-aging, hair color, hair cosmetics, oral care, Includes liquids such as massage oil, square plug loosening liquid, foundation, concealer, skin cream, marking pen and other writing instruments, liquid medicines, mud, etc., jelly, gel, and paste It is possible to use semi-solid such as kneaded or soft solid.

  As shown in FIGS. 1 and 2, the coating material extruding container 200 includes a main body cylinder 101 that constitutes the rear part of the container and a filling member 104 that constitutes the front part of the container. The member 116, the female screw member 105, the moving body 106, and the piston 107 are roughly provided.

  Specifically, as shown in FIG. 3, the main body cylinder 101 is configured in a bottomed cylinder shape, and includes an engaging claw piece 101 a that protrudes forward at the bottom. The engaging claw pieces 101a are provided at four equal positions along the circumferential direction around the axis on the bottom of the main body cylinder 101, and the claw bulging outward in the radial direction is provided at the tip of the engaging claw pieces 101a. The portion 101c is provided for mounting the rotation stop member 116. The bottom of the base portion of the engaging claw piece 101a on the outer side in the radial direction is provided with a recess 101b that extends outward in the radial direction and is recessed backward in the axial direction. The engaging claw piece 101a is flexible in the radial direction. It is set as the structure which has.

  The anti-rotation member 116 is integrally formed by injection molding using a flexible material such as synthetic resin, for example. As shown in FIGS. 5 and 6, the main body 116 x configured as a bottomed cylinder. And a shaft body 116y erected so as to be directed toward the distal end at the center of the bottom of the main body 116x.

  The latter half portion of the main body portion 116x is a cylindrical portion 116z, and the engaging claw piece 101a of the main body cylinder 101 can be entered into the bottom portion 116r, and the engaging claw piece 101a is moved around the axis of the rotation stopper member 116. An opening 116a for engaging in the rotation direction is opened at a position corresponding to the engaging claw piece 101a.

  In addition, the body portion 116x is provided with four slits 116b extending inward in a parallel state from a position at the periphery of the bottom portion 116r and sandwiching the pair of opposed openings 116a, 116a from both sides. The bottom portion 116c sandwiched between the slits 116b is provided on the front side of the bottom portion 116c so as to be separated from the cylindrical portion 116z in the axial direction, and has a notch-like portion 116d provided continuously to the adjacent slit 116b. . The bottom portion 116c is a peninsula portion that is supported so as to be flexible in the axial direction by a portion 116p excluding the bottom portion 116c and the slit 116b at the periphery of the bottom portion 116r. An arc-shaped convex portion 116s protruding rearward is provided on the peripheral edge portion of the rear end surface of the peninsula portion 116c.

  Further, as shown in FIG. 6, on the inner circumferential surface in the middle of the axial direction of the cylindrical portion 116z of the main body portion 116x, click teeth 116f, which are ridges protruding inward (axial center side) and extending in the axial direction, A plurality are provided along the direction. The click teeth 116f are for click engagement with the female screw member 105 in the rotational direction around the axis.

  The rear peripheral wall of the front half of the main body 116x is provided with a front annular step surface 116g on its inner peripheral surface, and a rear annular shape at a position behind the front annular step surface 116g. A step surface 116h is provided, and the inner peripheral surface of the main body 116x has a smaller diameter as it goes rearward through the annular step surfaces 116g and 116h. In addition, a pair of front openings 116i communicating between the inside and the outside are provided on the rear peripheral wall of the front half of the main body 116x so as to face each other, and the inside and outside communicate with each other at positions separated from the rear side of the pair of front openings 116i. A pair of rear openings 116j are provided to face each other. The front opening 116i is opened so that the rear end surface thereof is flush with a part of the front annular step surface 116g, and the rear opening 116j is a part of the rear annular step surface 116h having the rear end surface. It is opened so that it can be connected to the same plane.

  Further, a front arcuate convex portion (engaging portion) 116k projecting inward (axial side) is provided on the peripheral wall portion along the inner edge on the front end side of the front opening 116i, and the front end of the rear opening 116j is provided. On the peripheral wall portion along the inner edge on the side, a rear-side arc-shaped convex portion 116m is provided to project inward. The front arcuate convex portion 116k is a front engaging portion that engages the filling member 104 in the axial direction so as to be relatively rotatable, and the rear arcuate convex portion 116m and the rear annular step surface 116h are This is a rear engagement portion that engages the female screw member 105 in the axial direction so as to be relatively rotatable.

  The shaft body 116 y is provided with a plurality of protrusions 116 e along the circumferential direction, and a protrusion 116 e extending in the axial direction serves as a detent that constitutes one of the detent portions (anti-rotation mechanism) 150.

  Then, as shown in FIG. 3, a rotation stop member 116 is inserted into the main body cylinder 101, and as shown in FIG. 4, an arc-shaped convex portion 116s of the rotation stop member 116 with respect to the bottom of the main body cylinder 101. 3 and 4, the claw portion 101 c enters the opening 116 a of the rotation stop member 116 while the engagement claw piece 101 a of the main body cylinder 101 is bent inward (axial side) as shown in FIGS. 3 and 4. When the claw portion 101c passes through the opening 116a of the rotation stop member 116, the engagement claw piece 101a returns to the original position according to its flexibility, and the claw portion 101c is the front surface of the bottom portion 116r of the rotation stop member 116. The anti-rotation member 116 is engaged in the axial direction in close contact, and the engaging claw piece 101a engages with the opening 116a of the anti-rotation member 116 in the rotational direction around the axial line. 101 Synchronization rotatable and axially undetachable mounted it has been are integrated.

  Here, the peninsula portion 116c of the rotation stop member 116 is configured to be flexible in the axial direction by providing the rotation stop member 116 with a notch 116d and a slit 116b. By this, the main body cylinder 101 is pressed without backlash.

  As shown in FIG. 1, the moving body 106 is configured in a substantially cylindrical shape, and includes a flange portion 106 a on the outer peripheral surface on the distal end side. Mechanism) A male screw 106b that constitutes one of 109 is provided along the axial direction, and a plurality of protrusions 106d extending in the axial direction are arranged on the inner peripheral surface so as to protrude radially inward, and are prevented from rotating. Part (anti-rotation mechanism) 150 as a detent constituting the other side.

  The movable body 106 is extrapolated to the shaft body 116y of the rotation stop member 116, and the protrusion 106d enters between the protrusions 116e and 116e of the shaft body 116y of the rotation stop member 116 and engages in the rotation direction around the axis. The rotation stop member 116 is mounted so as to be able to rotate synchronously and move in the axial direction.

  The piston 107 is attached to the tip of the moving body 106 through the piston support member 108 so as not to move in the axial direction.

  The female screw member 105 is a feature of the present embodiment, and is integrally formed by injection molding using a flexible material such as synthetic resin, for example, as shown in FIGS. An outer cylinder 105a configured in a cylindrical shape, an inner cylinder 105b configured substantially in a coaxial shape with the outer cylinder 105a and disposed inside the distal end side of the outer cylinder 105a, and a distal end of the outer cylinder 105a An annular connecting portion 105x that is connected to the side and the rear end of the inner cylinder 105b and connects them is integrally provided. Thereby, between the outer cylinder 105a and the inner cylinder 105b, the space part 105y opened to one side (left side in the drawing) in the axial direction is provided in an annular shape.

  On the outer peripheral surface of the distal end portion of the outer cylinder 105a of the female screw member 105, a protrusion (engaging portion) 105f extending in the axial direction extends in the circumferential direction so as to engage the filling member 104 in the rotational direction around the axial line. A plurality are provided along.

  In addition, the inner cylinder 105b of the female screw member 105 communicates with the inside and outside in the radial direction and has a slit 105n whose front end is open to one side (front side) in the axial direction and extends in the axial direction, and whose rear end is open to the other side. Are provided on both sides of the axis. On the inner peripheral surface of the front half of the inner cylinder 105b divided into two by the slits 105n, 105n, a female screw 105j constituting the other of the screwing portion (screwing mechanism) 109 is formed from one side in the axial direction. The slits 105n and 105n are provided so as to be divided into semicircular arcs.

  Further, on the outer peripheral surface in the middle of the axial direction of the outer cylinder 105a of the female screw member 105, it engages with the arcuate convex portion 116m on the rear side of the rotation stop member 116 and the annular step surface 116h on the rear side in the axial direction. A flange portion 105c is provided, and a groove portion 105m for mounting the O-ring 111 shown in FIG. 1 is provided on the outer peripheral surface behind the flange portion 105c.

  Further, the rear side of the groove portion 105m of the outer cylinder 105a of the female screw member 105 is a cylindrical portion 105t having click teeth 105s. Specifically, a plurality of click tooth bases 105q each having a click tooth 105s extending in the axial direction and having a cross-sectional shape having an uphill and a downhill are provided along the circumferential direction of the cylindrical portion 105t. Each of the openings 105p is arranged so as to be supported so as to have flexibility in the radial direction by a support portion 105r protruding from the peripheral surface of the opening 105p.

  As shown in FIG. 1, the female screw member 105 is externally inserted into the moving body 106 and inserted into the anti-rotation member 116, and the female screw 105j of the inner cylinder 105b is connected to the male screw 106b of the moving body 106. In a screwed state, the front end surface of the inner cylinder 105b is abutted against the rear end surface of the flange 106a of the moving body 106, and the flange 105c of the outer cylinder 105a is an arcuate convex portion on the rear side of the rotation stop member 116. 116 m and the annular step surface 116 h on the rear side, and is engaged with the rotation stop member 116 in the axial direction, so that the rotation stop member 116 is mounted so as to be relatively rotatable and not movable in the axial direction. In this state, the click teeth 105 s of the female screw member 105 and the click teeth 116 f of the rotation stop member 116 are in a state in which click engagement is possible in the rotation direction around the axis. That is, the cylindrical portion 105t of the female screw member 105 and the cylindrical portion 116z of the rotation stopper member 116 are configured to have an overlap section in the axial direction that overlaps in the axial direction and the click teeth 105s and 116f click-engage with each other. . These click teeth 105s and 116f allow relative rotation of the main body cylinder 101 and the filling member 104 in one direction and the other direction.

  An O-ring 111 is fitted into the groove 105 m of the female screw member 105, and the main body cylinder 101 connected to the filling member 104 and the rotation stopper member 116 connected to the female screw member 105 by the O-ring 111. , Better rotation resistance occurs.

  The filling member 104 has a cylindrical shape and a shape whose tip is closed, and the filling material 104x is filled with the coating material L. The outer surface of the front end portion of the filling member 104 is an application portion, and a discharge port (opening) 104c that communicates the inside and the outside is provided in the application portion.

  At the rear end of the filling member 104, an annular groove 104a for engaging with the arcuate convex portion 116k on the front side of the rotation stop member 116 in the axial direction is provided. Further, on the inner peripheral surface of the rear end portion of the filling member 104, a knurl 104 e that extends over a predetermined length toward the tip end in the axial direction and is densely arranged along the circumferential direction is protruded from the female screw member 105. It is provided on the strip 105f so as to engage in the rotational direction around the axis.

  The filling member 104 has its rear portion inserted into the rotation stop member 116 and externally attached to the tip of the female screw member 105, and the protrusion 105f of the female screw member 105 is engaged with the knurl 104e in the rotational direction around the axis. As a result, the female screw member 105 is mounted so as to be able to rotate synchronously, and the annular groove portion 104a is engaged with the arcuate convex portion 116k on the front side of the rotation stopping member 116 in the axial direction, thereby preventing rotation. The member 116 is mounted so as to be relatively rotatable and immovable in the axial direction. That is, the filling member 104 and the female screw member 105 are rotatable relative to the main body cylinder 101 and are not movable in the axial direction. A cap 110 is detachably attached to the tip of the rotation stop member 116, and the filling member 104 is covered and protected by the cap 110.

  The female screw 105 j of the female screw member 105 and the male screw 106 b of the moving body 106 constitute a screwing portion (screwing mechanism) 109, which is rotated by the protrusion 116 e of the rotation stopping member 116 and the protrusion 106 d of the moving body 106. A stop portion (rotation stop mechanism) 150 is configured, and a click mechanism is configured by the click teeth 105 s of the female screw member 105, the click teeth 116 f of the rotation stop member 116, and the flexible support portion 105 r of the rotation stop member 116. Yes.

  In the coating material extruding container 200 configured as described above, when the cap 110 is removed by the user and the main body cylinder 101 and the filling member 104 are relatively rotated in the feeding direction, the screwing portion 109 is screwed. As shown in FIG. 2, the movable body 106 and the piston 107 move forward, and the coating material L is discharged from the discharge port 104 c of the filling member 104 and appears. Put into a state.

  When the moving body 106 moves forward, the click teeth 105 s of the female screw member 105 and the click teeth 116 f of the rotation stop member 116 repeatedly lock and release the rotation direction, and a click feeling is generated, and the degree of relative rotation Further, the advancement of the moving body 106 is sensed by the user, and the coating material L can be pushed out appropriately by the click feeling, so that the coating material L is prevented from being excessively taken out.

  After use, when the main body cylinder 101 and the filling member 104 are relatively rotated in the retraction direction, the screwing portion 109 works, and the movable body 106 and the piston are cooperated with the rotation preventing portion 150. 107 moves backward.

  When the moving body 106 is retracted, the click teeth 105 s of the female screw member 105 and the click teeth 116 f of the rotation stop member 116 repeatedly lock and release in the rotation direction to generate a click feeling and the degree of relative rotation. Further, the user senses the retreating state of the moving body 6, and the click feeling prevents the moving body 106 from returning too much. Note that a predetermined space is formed inside the discharge port 104 c of the filling member 104 by the retreat of the moving body 106.

  When the coating material L remains in the filling member 104, the main body cylinder 101 and the filling member 104 are relatively rotated again in the feeding direction by the user in order to put the coating material L into a use state. The operation is the same as described above, and such an operation is repeated.

  Next, a method for forming the female screw member 105 having the above configuration will be described with reference to FIGS. 11 and 12. First, as shown in FIGS. 11 and 12, a semi-arc-shaped male screw 170a which is configured in the following mold, that is, a columnar shape and extends in the axial direction corresponding to the female screw 105j on the inner peripheral surface of the inner cylinder 105b. , 170a and a first core pin 170 which is an inner mold having a convex portion 170b located between the male screws 170a, 170a in the circumferential direction and extending in the axial direction corresponding to the slit 105n on the outer peripheral surface of the tip portion. An intermediate mold 180 having an annular convex portion 180a corresponding to an annular space portion 105y between the inner peripheral surface of the outer cylinder 105a and the outer peripheral surface of the inner cylinder 105b, and the other than the connecting portion 105x The outer peripheral surface has a shape corresponding to the inner peripheral surface of the outer cylinder 105a on the side (the right side in the figure), and a columnar shape corresponding to the inner peripheral surface on the other side of the female screw 105j of the inner cylinder 105b at the center on the distal end side. Has protrusion 190a In addition, a second core pin 190 provided on the outer peripheral surface of the convex portion 190a and having a convex portion 190b corresponding to the slit 105n and extending in the axial direction, and a shape corresponding to the outer peripheral surface of the outer cylinder 105a are formed on the inner peripheral surface. An outer mold (not shown) is prepared.

  In addition, in order to avoid that a figure becomes complicated, in FIG.11 and FIG.12, the outer mold and the molded article after resin hardening are abbreviate | omitted.

  Then, as shown in FIG. 11, the first core pin 170 and the middle mold 180 are inserted from one side of the outer mold, and the second core pin 190 is inserted from the other side opposite to the one side of the outer mold in the axial direction. Then, the core pins 170 and 190 are brought into contact with each other. At this time, as shown in FIG. 12, a concave portion 170 x having a circular cross section recessed at the center of the tip surface of the first core pin 170 and a columnar shape protruding at the center of the tip surface of the second core pin 190. The projecting portions 190x of the core pins 170 and 190 are accurately positioned.

  In this state, as shown in FIG. 11, the front end surface of the male screw 170 a of the first core pin 170 and the front end surface of the convex portion 190 a of the second core pin 190 abut, and the convex portion of the first core pin 170. The front end surface of 170 b and the front end surface of the convex portion 190 b of the second core pin 190 abut, the outer peripheral surface of the male screw 170 a of the first core pin 170, the outer peripheral surface of the convex portion 190 a of the second core pin 190, and the middle mold 180. The space surrounded by the inner peripheral surface of the convex portion 180a and the region excluding the convex portion 170b of the first core pin 170 and the convex portion 190b of the second core pin 190 has a space for molding the inner cylinder 105b. A space for forming the connecting portion 105x is formed between the tip surface of the convex portion 180a of the intermediate mold 180 and the second core pin 190, and the outer peripheral surface of the convex portion 180a of the intermediate mold 180, the second Between the outer peripheral surface and the outer mold inner peripheral surface of the core pin 190, a space for forming the outer tube 105a is formed.

  Next, the molten resin is poured into the space, which is a gap between the molds, and the mold is released after solidification. In this mold release procedure, the middle mold 180 is pulled out to one side, and then the first core pin 170 is pulled out to one side and the second core pin 190 is pulled out to the other side as shown in FIG. Release.

  When the first core pin 170 is pulled out to the one side, the middle mold 180 has already been pulled out to the one side and the inner cylinder 105b is not prevented from spreading radially outward. The inner cylinder 105b spreads radially outward by 105n (see FIG. 9), and the first core pin 170 can be pulled out without damaging the female screw 105j.

  As described above, in the present embodiment, the female screw member 105 is formed by integrally forming the outer cylinder 105a and the inner cylinder 105b that is substantially coaxial with the outer cylinder 105a and is located on the inner side. A space portion 105y that is open on one side in the axial direction and formed in an annular shape between the outer cylinder 105a and the inner cylinder 105b, and is formed on the inner peripheral surface of the inner cylinder 105b, and is formed from one side in the axial direction. The axially extending female screw 105j and the slit 105n extending in the axial direction and communicating in the radial direction and opened to one side are provided with the above-described molding method, that is, the outer After the middle mold 180 corresponding to the annular space portion 105y between the cylinder 105a and the inner cylinder 105b is pulled out to one side, the inner cylinder 105b is utilized by utilizing the elasticity of the slit 105n opened to one side of the inner cylinder 105b. A method is employed in which the first core pin 170 having the male screw 170a corresponding to the female screw 105j is pulled out to one side. Thus, by pulling out the middle mold 180 before the first core pin 170, the inner cylinder 105b has a diameter. It is possible to pull out the first core pin 170 without damaging the female screw 105j without preventing the female screw 105j from spreading outward in the direction. Accordingly, the female screw member 105 having a new configuration that can reduce the manufacturing cost and increase the productivity can be obtained. The coating material extrusion container 200 provided can be provided.

  Further, in the female screw member 105, as shown in FIG. 8, the other end portion of the slit 105n and a connecting portion 105x that is connected to the outer cylinder 105a and the inner cylinder 105b and integrates them are provided. Since the female screw 105j is positioned on the other side from the other end, the expansion of the inner cylinder 105b outward in the radial direction by the slit 105n when the first core pin 170 is pulled out to one side is promoted. The first core pin 170 can be easily pulled out without damaging the female screw 105j.

  In this embodiment, a part of the inner cylinder 105b (a part on the rear side from the front end) is located in the outer cylinder 105a and the front end of the inner cylinder 105b protrudes from the outer cylinder 105a. All may be located in the outer cylinder 105a.

  Further, the click teeth 105s and 116f may be ratchet teeth, and only relative rotation in one direction in which the moving body 106 is extended may be allowed.

  FIG. 13 is a perspective view showing another anti-rotation member, and FIG. 14 is a cutaway front view of the anti-rotation member shown in FIG.

  The anti-rotation member 126 is different from the anti-rotation member 116 shown in FIGS. 5 and 6 in that a helical slit 126a is provided in the cylindrical portion 116z of the main body portion 116x to constitute a spring 126b, and the bottom portion 126r is formed on the bottom portion 126r. It is the point which supported so that it had flexibility. In addition, this rotation stop member 126 is integrally formed by injection molding using flexible materials, such as a synthetic resin, like the previous rotation stop member 116, for example.

  According to the coating material extruding container having the rotation preventing member 126, for example, when an external impact is applied, for example, when the container is dropped from the tip side with the cap 110 in place, the tension direction or the compression direction by the spring 126b is applied. The impact is alleviated by the flexibility, and the filling member 104 and the rotation stop member 126 are prevented from being removed, the coating material L is leaked, and each part is prevented from being damaged.

  Incidentally, in the above embodiment, since the protrusion 105f and the female screw 105j constituting the rotation stop of the female screw member 105 can be arranged in the radial direction by interposing the space portion 105y therebetween, There is also an effect that the total length of the female screw member 105 can be shortened and the entire container can be shortened.

  As described above, the present invention has been specifically described based on the embodiment. However, the present invention is not limited to the above embodiment, and the male screw and the female screw may be a group of protrusions or a spiral shape that are intermittently arranged. It may be one that works in the same way as a thread like a group of protrusions arranged intermittently, and the threaded protrusion may be a continuous thread.

  The click tooth can be selected from various shapes such as an obtuse triangle, an acute triangle, a right triangle, an isosceles triangle, and a hemispherical shape according to the click feeling and the ratchet function.

It is a longitudinal cross-sectional view which shows the initial state of the coating material extrusion container which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view when the moving body of the coating material extrusion container shown in FIG. 1 advances to the maximum. FIG. 3 is an exploded perspective view of a main body cylinder and a rotation stopper member of the coating material extruding container shown in FIGS. 1 and 2. FIG. 3 is a cutaway perspective view of a main body cylinder and a rotation stopper member of the coating material extruding container shown in FIGS. 1 and 2. It is a perspective view which shows the rotation stopping member in FIG.1 and FIG.2. FIG. 6 is a cutaway perspective view of the rotation stop member shown in FIG. 5. It is a perspective view which shows the female screw member in FIG.1 and FIG.2. It is a vertical perspective view of the female screw member shown in FIG. FIG. 8 is a cutaway perspective view of the female screw member shown in FIG. 7. FIG. 8 is a left side view of the female screw member shown in FIG. 7. It is the state figure which set the shaping die of the female screw member shown in FIG. 7 to the shaping | molding position. It is a perspective view which shows a mode that a shaping die is released from the state of FIG. It is a perspective view which shows another rotation stopping member. It is a fracture | rupture front view of the rotation stopping member shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... Main body cylinder (container rear part), 101a ... Engagement claw piece, 104 ... Filling member (container front part), 104a ... Engagement part (engagement part with respect to front side engaging part) of a filling member, 104c ... Container front-end | tip 105 ... female screw member, 105a ... outer cylinder, 105b ... inner cylinder, 105c ... female screw member engagement portion (engagement portion with respect to rear side engagement portion), 105f ... female screw member engagement portion (Synchronous rotation with filling member), 105j ... female screw of female screw member, 105n ... slit of female screw member, 105x ... connecting portion of female screw member, 105y ... space portion, 106 ... moving body, 106b ... male of moving body Screws 109, threaded portions 116, 126, anti-rotation members, 116 h, 116 m, engagement portions (rear-side engagement portions) of the rotation-prevention members, 116 k, engagement portions (rear-side engagement) of the rotation-prevention members Part), 116r ... bottom of the rotation stop member, 116 ... cylindrical portion of the rotation stop member, 126a ... rotation stopping member of the slit, 126b ... compression spring detent member, 200 ... coating material extruding container, L ... coating material.

Claims (2)

A female screw member and a movable body are provided in the container, and a female screw provided on the inner peripheral surface of the female screw member and a male provided on the outer peripheral surface of the movable body by relative rotation between the container front portion and the container rear portion. In the application material extruding container in which the screwing portion made of a screw works and the moving body moves forward and the application material in the container appears from the opening at the tip of the container,
A filling member comprising the container front and filled with the coating material;
An anti-rotation member that rotates synchronously with respect to the moving body around the axis and engages so as to be movable in the axial direction, and is engaged with and integrated with the rear portion of the container in the rotational direction and axial direction around the axis. , And
The container rear portion has an engaging claw piece projecting from the bottom of the container so as to extend in the axial direction, and the engaging claw piece engages with the bottom portion of the anti-rotation member. Engage in the axial direction with respect to the container rear and engage in the rotational direction around the axis,
The anti-rotation member is
A front engaging portion that engages the filling member in the axial direction so as to be relatively rotatable;
A rear engaging portion that engages the outer cylinder of the female screw member in the axial direction so as to be relatively rotatable;
A slit extending inwardly from the position of the peripheral edge of the bottom so as to sandwich the engagement position of the rear portion of the container with the engagement claw piece from both sides;
A bottom portion sandwiched between the slits of the anti-rotation member is provided in front of the bottom portion so as to be axially separated from a cylindrical portion on the front side of the bottom portion, and is connected to both of the slits of the anti-rotation member. A notched portion, and
By the slit and the notch-shaped part of the rotation stop member, the bottom part is a peninsula having flexibility in the axial direction,
A coating material extruding container having a convex portion in contact with the rear part of the container on a rear end surface of the peninsula part . The female screw member is
The inner cylinder, which is substantially coaxial with the outer cylinder and is disposed inside and a part or all of the inner cylinder is located in the outer cylinder, is formed integrally.
Between the outer cylinder and the inner cylinder, a space portion that is opened to one side in the axial direction is provided in an annular shape,
The inner cylinder is
The female screw provided on the inner peripheral surface, formed from the one side in the axial direction and extending in the axial direction;
A slit extending in the axial direction through the inside and outside in the radial direction and opened to the one side, and
The outer cylinder is
The coating material extruding container according to claim 1 , further comprising an engaging portion that rotates in synchronization with the filling member and an axis around the outer peripheral surface thereof .

Images