JP7102263B2 - Extruder - Google Patents

Description

The present invention relates to an extruder for extruding an inclusion body in a plurality of times.

Conventionally, an extruder capable of extruding an accommodating body from an accommodating member accommodating a fluid accommodating body such as a gel-like drug by an extruding member in a plurality of times has been known. For example, Patent Document 1 describes an accommodating member having a discharge portion of an accommodating body on one end side in the axial direction, and an extruded member that is movable along the axial direction of the accommodating member and is rotatable around the axis of the accommodating member. Extruders with and are disclosed.

In the extrusion device described in Patent Document 1, a plurality of extrusion members are provided with a cylindrical extrusion shaft portion inserted into the accommodating member from the other end side in the axial direction and a plurality of extrusion members provided at intervals in the axial direction. The accommodating member has a ring-shaped regulating portion that regulates the movement of the extruded member so that the extruded shaft portion is inserted stepwise on the other end side in the axial direction. .. This regulating portion is located in the axial direction of the protrusion when the protrusion located outside the accommodating member among the plurality of protrusions of the extrusion shaft portion and the position closest to the accommodating member is positioned at a predetermined position as the extrusion member rotates. It has an avoiding portion that allows the movement of the protrusion, and a receiving portion that prohibits the protrusion from moving in the axial direction when the protrusion is not located at the predetermined position. As a result, the extruded member can move in the axial direction when the protrusion is positioned at the predetermined position with respect to the regulating portion, and the extruded shaft portion is inserted into the accommodating member with a predetermined stroke so that the accommodating body is directed toward the discharging portion. And push it in. As a result, the accommodating body is discharged from the discharge portion. This accommodating body is discharged so as to adhere to the inner surface of the toilet bowl, for example.

JP-A-2016-124594

The extrusion device can be used by mounting the extrusion member on the accommodating member, but at the time of mounting, the tip of the extrusion shaft portion is passed through the inside of the regulation portion of the accommodating member to insert a predetermined stroke into the accommodating member. There is a need to. Here, if the extrusion shaft portion has a cylindrical shape as in the extrusion apparatus described in Patent Document 1, the tip end portion of the extrusion shaft portion can be easily fitted inside the regulation portion when the extrusion member is mounted. Therefore, it is easy to set the extruded member straight with respect to the accommodating member, and it is possible to easily insert the extruded shaft portion by the subsequent pushing operation of the extruded member. However, if the extrusion shaft portion is formed in a cylindrical shape, the outer peripheral surface of the extrusion shaft portion may come into contact with the inner peripheral surface of the regulation portion in a wide range in the circumferential direction when the extrusion member is rotated. There is a problem that the extrusion shaft portion receives frictional resistance from the regulation portion and it becomes difficult to rotate the extrusion member.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an extrusion tool capable of improving the operability of the extrusion member during a rotation operation and easily mounting the extrusion member on the accommodating member.

The present invention relates to an extruder capable of extruding an inclusion body in a plurality of times. The extrusion device accommodates the accommodating body and has an accommodating member having a discharge portion of the accommodating body on one end side in the axial direction, and is movable along the axial direction of the accommodating member and around the axis of the accommodating member. An extruded shaft portion comprising a rotatable extrusion member, the extruded member being inserted into the accommodating member from the other end side in the axial direction, and extruding the accommodating body from the ejection portion as the extruded member moves. And a plurality of protrusions provided on the extrusion shaft portion at intervals in the axial direction, and the accommodating member is inserted so that the extrusion shaft portion is gradually inserted into the other end side in the axial direction. It has a ring-shaped restricting portion that regulates the movement of the extruded member, and the restricting portion has a protrusion located outside the accommodating member and located on the tip end side of the extruded shaft portion among the plurality of protrusions. The extrusion shaft portion has an avoidance portion that allows the protrusion to move in the axial direction when it is positioned at a predetermined position with the rotation of the extrusion member, and the extrusion shaft portion has a shape that is not circular in a cross-sectional view and is extruded. At the tip of the shaft portion, only the plurality of protrusions are exposed to the outside in bottom view, and the outer peripheral surface of the extruded shaft portion is inscribed in the inner peripheral surface of the restricting portion when the extruded shaft portion is inserted into the accommodating member. It is characterized in that a cover portion is provided.

In the extruder of the present invention, it is preferable that the cover portion has a circular shape in cross section.

In the extruder of the present invention, the extrusion shaft portion preferably has a plate shape or a columnar shape.

Further, in the extrusion device of the present invention, it is preferable that the extrusion shaft portion includes at least one guide portion that extends in the axial direction and abuts on the inner peripheral surface of the regulation portion.

According to the extrusion device of the present invention, when the extrusion member is mounted on the accommodating member, the extruded member is straightened with respect to the accommodating member by fitting the cover portion provided at the tip of the extrusion shaft portion inside the regulating portion. It becomes easy to set, and the extrusion shaft portion can be easily inserted by the subsequent pushing operation of the extrusion member. Further, in order to insert the extrusion shaft portion into the accommodating member with a predetermined stroke when the extrusion member is mounted, the avoidance portion of the regulation portion is applied to the leading protrusion located on the most tip side of the extrusion shaft portion among the plurality of protrusions of the extrusion member. However, the extrusion shaft is located inside the outer peripheral edge of the cover when viewed from the bottom, whereas the protrusion including the leading protrusion is exposed to the outside of the cover, so it is extruded. It is possible to easily find out at which position in the circumferential direction of the shaft portion the leading protrusion is provided. Therefore, it is easy to adjust the orientation of the extruded shaft with respect to the regulating portion around the axis so that the leading protrusion passes through the avoiding portion of the regulating portion, and when the cover portion is fitted inside the regulating portion, the leading protrusion is fitted. And the avoidance part can be reliably aligned. Therefore, the extruded member can be easily attached to the accommodating member.

In addition, since the extrusion shaft portion is formed in a shape that is not circular in cross-sectional view, the outer peripheral surface of the extrusion shaft portion may come into contact with the inner peripheral surface of the regulation portion in a wide range in the circumferential direction when the extrusion member is rotated. do not have. Therefore, since the frictional resistance that the extrusion shaft portion receives from the regulation portion when the extrusion member is rotated can be suppressed, the rotation operation of the extrusion member can be easily performed and the operability can be improved.

It is a perspective view of the extruder which concerns on one Embodiment of this invention. It is a perspective view of the extrusion device in a state where the extrusion member is pushed into the accommodating member with the cap removed. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is a perspective view of the extrusion device in a state where the extrusion member is pushed to the end with respect to the accommodating member with the cap removed. FIG. 4 is a cross-sectional view taken along the line BB of FIG. It is a perspective view of the extruded member. It is a front view of the extruded member. It is a left side view of an extruded member. It is a right side view of an extruded member. It is a bottom view of the extruded member. FIG. 9 is a cross-sectional view taken along the line CC of FIG. FIG. 7 is a cross-sectional view taken along the line DD of FIG. It is a perspective view which shows the protrusion (excluding the protrusion at the rearmost) in an enlarged manner. It is sectional drawing which enlarges and shows the process which a protrusion (excluding the protrusion at the tail tail) passes through the avoidance part of a regulation part. It is a perspective view which shows the rearmost protrusion enlarged. It is sectional drawing which enlarges and shows the process that the protrusion at the tail passes through the avoidance part of a regulation part. It is an exploded perspective view of the accommodating member. It is a perspective view of the accommodating part and the discharging part. FIG. 8 is a cross-sectional view taken along the line GG of FIG. It is a perspective view of the regulation part. It is a perspective view of the regulation part. It is a front view of the extrusion member of a modification. It is a left side view of the extrusion member of a modification. FIG. 2 is a cross-sectional view taken along the line FF of FIG. 23. FIG. 22 is a cross-sectional view taken along the line EE of FIG.

Hereinafter, embodiments of the extruder according to the present invention will be described with reference to the drawings.

1 to 5 show the extruder 1 of the present embodiment. The extrusion device 1 is a device capable of extruding a fluid container in a plurality of times.

As the container, for example, a gel-like drug containing an aromatic component, a cleaning component, or the like can be exemplified, and the extruder 1 is suitably used for adhering the gel-like drug to the inner surface of the toilet bowl of a flush toilet. Can be done. When the gel-like chemical is exposed to the flush water flowing out from the water supply hole on the back side of the rim during washing with water, it elutes into the flash water and supplies aromatic components and cleaning components to the toilet bowl. The container may be something other than a drug, such as food or cosmetics.

The extrusion device 1 includes an extrusion member 2 and an accommodating member 10. The accommodating member 10 can accommodate the accommodating body and discharge the accommodating body from one end side in the direction of the axis a (hereinafter, referred to as "axial direction"). The extruded member 2 is movable along the axial direction of the accommodating member 10 and is rotatable around the axis a of the accommodating member 10 (hereinafter, referred to as “axis circumference”). The extruded member 2 alternately repeats a pushing operation of pushing the accommodating member 10 in the axial direction and a rotating operation of rotating the accommodating member 10 about the axis, thereby causing the accommodating body accommodated in the accommodating member 10 to be accommodated. Extrude from the accommodating member 10 in a plurality of times. Specifically, one push-out of the housing body is performed by one rotation operation and one push-in operation. When all the accommodating bodies in the accommodating member 10 are extruded by the extruding member 2, the extruding member 2 is pulled out from the accommodating member 10, the accommodating member 10 is discarded, and the extruding member 2 is reused. In the present embodiment, the rotation direction of the rotation operation is set clockwise. Hereinafter, each component of the extruder 1 will be described.

First, as shown in FIGS. 6 to 12, the extrusion member 2 has a grip portion 3, an extrusion shaft portion 4, a plurality of protrusions 5, a cover portion 6, and an engaging portion 7. In the present specification, the side of the extruded member 2 toward the center is the inside, and the opposite side is the outside. Further, the side of the extrusion member 2 pushed into the accommodating member 10 is the lower side (tip side), and the opposite side is the upper side (base end side).

The grip portion 3 is a portion gripped by the operator during a pushing operation or a rotation operation of the extrusion member 2. The grip portion 3 is formed so that the outer diameter gradually decreases toward the lower side, thereby improving the ease of gripping when the operator grips the grip portion 3.

Next, the extrusion shaft portion 4 is a portion to be inserted into the accommodating member 10 in order to push the accommodating body in the accommodating member 10 out of the accommodating member 10. The extrusion shaft portion 4 has a longitudinal shape. The longitudinal shape means a shape in which the length in one direction is sufficiently longer than the length in the direction orthogonal to the one direction. The one direction is the axial direction (vertical direction). The extrusion shaft portion 4 is formed in a size that can be inserted from the opening on the other end side in the axial direction of the accommodating member 10.

The extrusion shaft portion 4 has a prismatic shape, a square cylinder shape, a plate shape composed of one plate-shaped body, and a plurality of plate-shaped bodies formed into, for example, a T-shape, a Y-shape, an L-shape, an X-shape, a cross shape, or other radial shapes. Various shapes can be obtained as long as they have a shape that is not circular in cross-sectional view, such as a combined irregular columnar shape. In the present embodiment, the extrusion shaft portion 4 intersects one of the two plate-like bodies perpendicularly to the other plate-like body so as to protrude from both plate surfaces of the other plate-like body. It has a cross-shaped columnar shape and includes four projecting portions 44 extending from the core portion 40 at the crossing position and combined in a cross shape. The thickness of the protruding portion 44 is preferably 2 mm or more.

The extrusion shaft portion 4 is provided with a plurality of outward protrusions 5. In this embodiment, nine protrusions 5A to 5I are provided. In the present embodiment, the plurality of protrusions 5 have two facing end faces 41A of a set of protrusions 44 extending linearly with the core portion 40 sandwiched between the four protrusions 44 extending from the core portion 40. 41B are provided at intervals in the axial direction. Further, in the present embodiment, the plurality of protrusions 5 are provided on the two end faces 41A and 41B of the extrusion shaft portion 4 so as to be alternately and sequentially located on the lower side. In the following description, when referring to individual protrusions of a plurality of protrusions 5, they may be referred to as protrusions 5A to 5I.

That is, the plurality of protrusions 5 are each divided into two protrusion groups 180 ° apart from each other around the axis of the extrusion shaft portion 4, and the other (end face 41A side) facing each protrusion 5 of the protrusion group (end face 41A side). Each protrusion 5 of the protrusion group on the end face 41B side) is not at the same height position but is arranged so as to be displaced in the axial direction. When the extrusion shaft portion 4 is inserted into the accommodating member 10, the plurality of protrusions 5 are sequentially inserted into the accommodating member 10 together with the extrusion shaft portion 4 from the leading protrusion 5A located at the lowermost side. After the protrusion 5A is inserted into the housing member 10, the protrusion located one rearward to be inserted into the housing member 10 is a group of protrusions on the opposite side of the leading protrusion 5A and one protrusion above the protrusion 5A. It becomes 5C. Hereinafter, the protrusion 5D, the protrusion 5E, the protrusion 5F, the protrusion 5G, the protrusion 5H, the protrusion 5I, and the rearmost protrusion 5B located on the uppermost side are inserted into the accommodating member 10 in this order. The protrusion group on the end face 41A side includes the first protrusion 5A of the plurality of protrusions 5 and the last protrusion 5B.

A plurality of through holes 43 are formed in the extrusion shaft portion 4. The through hole 43 is formed so as to be located inside each protrusion 5 and in the vicinity of each protrusion 5 so as to correspond to at least a part of the protrusions 5 of the plurality of protrusions 5. In the present embodiment, the through hole 43 is formed corresponding to each of the protrusions 5C to 5I excluding the leading protrusion 5A and the rearmost protrusion 5B. The plurality of through holes 43 are divided into two groups separated from each other by 180 ° around the axis of the extrusion shaft portion 4 according to the protrusions 5C to 5I, and the other of the through holes 43 facing the through holes 43 of one group. The through holes 43 of the group are not at the same height position but are arranged so as to be displaced in the axial direction.

The through hole 43 constitutes a space that allows the protrusions 5C to 5I to be displaced inward when a pressing force from the axial direction (vertical direction) acts on the protrusions 5C to 5I located on the outside. The extruded member 2 is configured to be pulled out from the accommodating member 10 when all the accommodating bodies in the accommodating member 10 are discharged. When passing through the regulating portion 12 of the member 10, the regulating portion 12 hits from above and receives a downward pressing force from the regulating portion 12. At this time, the protrusions 5C to 5I are displaced inward by receiving the pressing force, so that the protrusions 5C to 5I can pass through the regulating portion 12. In order to satisfactorily displace the protrusions 5C to 5I inward, the vertical length of the through hole 43 is preferably equal to or longer than the vertical length of the protrusions 5C to 5I. The shape of the through hole 43 is not particularly limited, but if it is too large than the shape of the protrusions 5C to 5I, the strength of the extrusion shaft portion 4 decreases, so that the shape corresponds to the shape of the protrusions 5C to 5I. In the present embodiment, the cross-sectional view is triangular. Further, when the protrusions 5C to 5I are subjected to the pressing force, the protrusions 5C to 5I are displaced so that the lower end rotates inward with the upper end as the center. The hole 43 is preferably formed to have the widest width at the position of the lower end of the protrusions 5C to 5I. Therefore, in the present embodiment, the through hole 43 is oriented so that the longest hypotenuse of the triangle faces in the vertical direction and the angle facing the hypotenuse is located at substantially the same height as the lower end of the protrusions 5C to 5I. It is set.

A through hole 43 may be formed inside the leading protrusion 5A and the trailing protrusion 5B, but the leading protrusion 5A and the trailing protrusion 5B are used when the extrusion member 2 is pulled out from the accommodating member 10. Since it passes through the avoidance portion 122 of the regulation portion 12, it does not receive the pressing force from the regulation portion 12 when passing through the regulation portion 12, so that the through hole 43 corresponding to the front protrusion 5A and the rearmost protrusion 5B is not necessarily formed. There is no need to form. Further, the protrusions 5D, 5F, and 5H also pass through the avoidance portion 122 of the regulation portion 12 when the extrusion member 2 is pulled out from the accommodating member 10, so that it is not always necessary to form the corresponding through hole 43.

Further, as shown in FIGS. 2 and 4, the extruded shaft portion 4 includes a guide portion 8 which is a portion that comes into contact with the inner peripheral surface of the regulating portion 12 of the accommodating member 10 when it is inserted into the accommodating member 10. .. In the present embodiment, the guide portion 8 is a set different from the set of protrusions 44 having protrusions 5 on the end faces 41A and 41B among the four protrusions 44 extending from the core 40 of the extrusion shaft portion 4. It is composed of two protrusions 44. The length between the opposing end faces 42A and 42B of the two protruding portions 44 of the extrusion shaft portion 4 is smaller than the inner diameter of the accommodating portion 11 of the accommodating member 10, but the end surfaces 42A and 42B are the inner circumferences of the regulating portion 12. It is set to be the same as or slightly smaller than the inner diameter of the regulating portion 12 so as to come into contact with the surface. The end faces 42A and 42B of the two protruding portions 44 of the extrusion shaft portion 4 may be flat surfaces or curved surfaces that are convex outward.

The guide portion 8 is accommodated while the extrusion shaft portion 4 is inserted into the accommodating member 10 from the other end side in the axial direction until the end of one end side (discharge portion 13 side), that is, the extrusion shaft portion 4 is accommodated. It abuts against the inner peripheral surface of the regulating portion 12 of the accommodating member 10 throughout the insertion into the member 10. As a result, when the extruded shaft portion 4 is inserted into the accommodating member 10, the extruded shaft portion 4 is guided by the guide portion 8 so as to be inserted straight into the accommodating member 10. The insertion posture is stable.

The guide portion 8 is composed of two projecting portions 44 extending from the core portion 40 of the extrusion shaft portion 4, but if it is a portion that abuts on the inner peripheral surface of the regulation portion 12, other than the extrusion shaft portion 4. For example, the end faces 42A and 42B of the projecting portion 44 and a plate-shaped striatum protruding outward from the core portion 40 can be formed. Further, if the extruded shaft portion 4 is columnar or prismatic, it can be formed of, for example, a striatum such as a plate protruding outward from the outer peripheral surface. In this case, the guide portion 8 does not necessarily have to be provided over the entire length of the extrusion shaft portion 4 in the axial direction, and may be provided only at a predetermined length along the axial direction.

Next, as shown in FIGS. 1 to 12, the plurality of protrusions 5 are formed so as to protrude radially outward toward the inner peripheral surface of the regulating portion 12 when the extrusion shaft portion 4 is inserted into the accommodating member 10. ing. When the plurality of protrusions 5 are inserted into the accommodating member 10 together with the extrusion shaft portion 4, they pass through the avoidance portion 122 of the regulation portion 12 in the axial direction and pass through the regulation portion 12 together with the extrusion shaft portion 4, while being regulated. It is a portion that prevents the extrusion shaft portion 4 from passing through the regulation portion 12 by abutting against the receiving portion 121 of the portion 12.

As shown in FIG. 1, the leading protrusion 5A located at the lowermost side of the plurality of protrusions 5 is located at the position of the extrusion shaft portion 4 and the regulation portion 12 when the extrusion member 2 is mounted on the accommodating member 10. It is a part used for matching. The leading protrusion 5A is provided at a position adjacent to the engaging portion 7 and the cover portion 6 at the tip of the extrusion shaft portion 4.

Further, the protrusions 5B to 5I are portions used when the accommodating body in the accommodating member 10 is pushed out from the accommodating member 10 in a plurality of times. Among them, the rearmost protrusion 5B located on the uppermost side is used when all the housing bodies in the housing member 10 are finally pushed out from the housing member 10.

As shown in FIGS. 4 and 5, the rearmost protrusion 5B does not completely pass through the avoidance portion 122 of the regulation portion 12 when the extrusion shaft portion 4 is inserted to the end of the accommodating member 10. The length in the axial direction is set so that the portion passes through but at least a part of the remaining portion is located in the avoidance portion 122 and fits in the avoidance portion 122. As a result, when the extrusion shaft portion 4 is inserted to the end of the accommodating member 10, the rearmost protrusion 5B is restricted from moving in the circumferential direction by the avoidance portion 122 of the regulating portion 12.

The plurality of protrusions 5 are provided so that at least a part of the upper end and at least a part of the lower end of the extrusion shaft portion 4 are connected to the extrusion shaft portion 4. As a result, the upper end and the lower end of the protrusion 5 are constrained by the extrusion member 4, so that the protrusion 5 is displaced inward when a pressing force is applied from the axial direction (vertical direction), but from the circumferential direction (horizontal direction). It is regulated to displace inward when it receives the pressing force of.

In the present embodiment, since the plurality of protrusions 5 are formed to be wider than the end faces 42A and 42B of the extrusion shaft portion 4, a part of the upper end and a part of the lower end are connected to the extrusion shaft portion 4. By forming the protrusion 5 with the same width as the end faces 42A and 42B of the extrusion shaft portion 4, the entire upper end and the entire lower end may be connected to the extrusion shaft portion 4.

Of the plurality of protrusions 5, the protrusions 5A, 5C to 5I excluding the rearmost protrusion 5B protrude greatly from the extrusion shaft portion 4 from the upper end to the lower end (the amount of protrusion from the extrusion shaft portion 4 gradually increases). Is formed in. That is, as shown in FIG. 13, the protrusions 5A, 5C to 5I are inclined surfaces in which the outer surface 50 protruding from the extrusion shaft portion 4 is inclined downward toward the outside. When the extruded member 2 is pulled out from the accommodating member 10, the protrusions 5A, 5C to 5I hit the restricting portion 12 when passing through the restricting portion 12 of the accommodating member 10 and receive a downward pressing force. At this time, the outer surface 50 receives a downward pressing force. Since the protrusions 5A, 5C to 5I are smoothly displaced inward due to the inclination, the protrusions 5A, 5C to 5I easily pass through the regulating portion 12. The protrusions 5A, 5C to 5I have a pair of side surfaces 51, 52 and a bottom surface 53 in addition to the outer surface 50. The pair of side surfaces 51, 52 have a triangular shape, and the bottom surface 53 has a trapezoidal shape (right angle table). Shape).

As shown in FIG. 15, the rearmost protrusion 5B has an outer surface 50 as a vertical surface, and is formed so that the amount of protrusion from the extrusion shaft portion 4 is constant from the upper end to the lower end. The protrusion 5B has a pair of side surfaces 51, 52 and a bottom surface 53 in addition to the outer surface 50, the pair of side surfaces 51 and 52 have a rectangular shape, and the bottom surface 53 has a trapezoidal shape (right angle trapezoidal shape). ..

The shape of the plurality of protrusions 5 is not particularly limited as long as it can pass through the avoidance portion 122 of the regulation portion 12 in the axial direction, but may be formed along the inner peripheral surface of the avoidance portion 122. preferable. In the present embodiment, the plurality of protrusions 5 are formed in a cross-sectional view trapezoidal shape (right-angled trapezoidal shape) corresponding to the avoidance portion 122 having a trapezoidal shape (right-angled trapezoidal shape) in the cross section. Therefore, as shown in FIGS. 13 and 14, of the pair of side surfaces 51 and 52 of the protrusions 5A to 5I, the side surface 51 opposite to the rotation direction of the extrusion member 2, that is, the rotation direction with respect to the outer surface 50. The side surface (the side surface where the outer surface 50 is connected to the rotation direction side) 51 connected on the opposite side is 90 ° with respect to the outer surface 50 so as to be along the inclined surface 122B forming the hypotenuse of the trapezoid among the inner peripheral surfaces of the avoidance portion 122. Has a larger crossing angle. As a result, when each of the protrusions 5A to 5I passes through the avoidance portion 122 of the regulation portion 12 in the axial direction, at least a part of the side surface 51 with respect to the inner peripheral surface of the avoidance portion 122, as shown in FIGS. 13 and 14. And abut. Therefore, when the extrusion shaft portion 4 is inserted into the accommodation member 10, the extrusion shaft portion 4 is guided to be inserted straight into the accommodation member 10 by the avoidance portion 122 of the regulation portion 12, and therefore, when the extrusion shaft portion 4 is inserted into the accommodation member 10. The insertion posture of is stable. The side surface 52 of the protrusion 5 on the rotation direction side passes through the avoidance portion 122 while abutting against the step portion 123. Further, as shown in FIGS. 15 and 16, when the rearmost protrusion 5B passes through the avoidance portion 122 of the regulation portion 12 in the axial direction, the outer surface 50 also abuts on the bottom surface 122A of the inner peripheral surface of the avoidance portion 122. ..

Next, as shown in FIGS. 1 and 6 to 11, the cover portion 6 is provided at the tip of the extrusion shaft portion 4, and when the extrusion member 2 is mounted on the accommodating member 10, the cover portion 6 is attached to the regulation portion 12. This is a portion that facilitates the alignment of the extrusion shaft portion 4. The cover portion 6 has a predetermined thickness and has a circular shape in a cross-sectional view, and in the present embodiment, has a disk shape. The cover portion 6 is provided on the extrusion shaft portion 4 so that the center coincides with the center of the extrusion shaft portion 4. The cover portion 6 is formed in such a size that the extrusion shaft portion 4 is included inside and only the outward protrusion 5 protruding from the extrusion shaft portion 4 is exposed to the outside when viewed from the bottom surface. Further, the cover portion 6 is formed so that the outer peripheral surface thereof has a size along the inner peripheral surface of the regulating portion 12 when the extrusion shaft portion 4 is inserted into the accommodating member 10, and the outer diameter of the accommodating portion 11 of the accommodating member 10 is formed. Although it is smaller than the inner diameter, it is set to be the same as or slightly smaller than the inner diameter of the regulating portion 12.

When the extrusion member 2 is mounted, the cover portion 6 provided at the tip of the extrusion shaft portion 4 fits inside the regulation portion 12, so that the extrusion member 2 can be easily set straight with respect to the accommodating member 10, and the extrusion shaft The insertion posture when the portion 4 is inserted into the accommodating member 10 is stable. Therefore, the extrusion shaft portion can be easily inserted by the subsequent pushing operation of the extrusion member. Further, in order to mount the extrusion member 2 on the accommodating member 10, it is necessary to insert the extrusion shaft portion 4 into the accommodating member 10 with a predetermined stroke. It is necessary to pass the avoidance unit 122 of the regulation unit 12 for 5A. Here, the extrusion shaft portion 4 is housed inside the outer peripheral edge of the cover portion 6, whereas the leading protrusion 5A protrudes outward from the outer peripheral edge of the cover portion 6, so that the extrusion shaft portion 4 It is possible to easily find out at which position in the circumferential direction the leading protrusion 5A is provided. Therefore, in order for the leading protrusion 5A to pass through the avoidance portion 122 of the regulation portion 12, it becomes easy to adjust the orientation of the extrusion shaft portion 4 with respect to the regulation portion 12 around the axis, and the cover portion 6 is placed inside the regulation portion 12. At the time of fitting, the leading protrusion 5A can be reliably aligned with the avoidance portion 122. Therefore, the extruded member 2 can be easily attached to the accommodating member 10.

Next, as shown in FIGS. 3 and 5 to 11, the engaging portion 7 is located at the most advanced end of the extrusion member 2, and the extrusion shaft portion 4 inserts a predetermined stroke into the accommodating member 10 when the extrusion member 2 is mounted. This is a portion of the accommodating member 10 that engages with the engaged portion 141 of the plug member 14. The engaging portion 7 has a predetermined thickness and has a circular shape in a cross-sectional view, and in the present embodiment, has a flat columnar shape. The engaging portion 7 is formed in a size that fits into the engaged portion 141 of the plug member 14 of the accommodating member 10, and the outer diameter is the same as or slightly larger than the inner diameter of the engaged portion 141. Is set to large or small. Further, the outer diameter of the engaging portion 7 is set to be smaller than the outer diameter of the cover portion 6. The engaging portion 7 may have a hollow cylindrical shape.

Next, as shown in FIGS. 1 and 17, the accommodating member 10 has an accommodating portion 11, a regulating portion 12, a discharging portion 13, a plug member 14, and a cap 15.

As shown in FIGS. 17 to 19, the accommodating portion 11 has a cylindrical shape with both ends open, and has an accommodating space inside which the accommodating body can be accommodated. The accommodating portion 11 is formed in a size such that the extrusion shaft portion 4 and the protrusion 5 of the extrusion member 2 can be inserted. The accommodating portion 11 is provided with a discharge portion 13 on one end side (lower side in FIG. 13) in the axial direction, a regulating portion 12 is mounted on the other end side (upper side in FIG. 13), and a plug member 14 is housed inside. To. On the other end side of the accommodating portion 11, an extension portion 111 in which a part of the cylinder wall 110 extends upward from the other portion is provided, which is opposite to the extension portion 111 and the extension portion 111 of the cylinder wall 110. A locking hole 112 is formed in the side portion.

The regulation unit 12 has a ring shape as shown in FIGS. 17 and 20 to 21. The restricting portion 12 has a pair of engaging protrusions 120, and each engaging protrusion 120 is fitted into the corresponding locking hole 112 of the accommodating portion 11 to be fixed to the accommodating portion 11.

The regulation unit 12 accommodates the extrusion member 2 so that when the extrusion shaft portion 4 is inserted into the accommodation member 10 by the pushing operation of the extrusion member 2, the extrusion shaft portion 4 is inserted into the accommodation member 10 in stages. It is a portion that regulates the movement in the axial direction with respect to the member 10. Specifically, when the protrusion 5 moves axially to the position of the regulation portion 12 for each of the protrusions 5 in the process in which the extrusion shaft portion 4 is inserted into the accommodating member 10. If the protrusion 5 is not located at a predetermined position that forms a specific angular relationship around the axis with respect to the regulating portion 12 (if the protrusion 5 is located at a position that forms an angular relationship different from the specific angular relationship around the axis). ), The axial movement of the protrusion 5 is prohibited, and when the protrusion 5 is positioned at the predetermined position by the rotation of the extrusion member 2, the protrusion 5 is allowed to move in the axial direction.

The regulating portion 12 includes a receiving portion 121, an avoiding portion 122, step portions 123 and 124, a surrounding portion 125, and an inclined portion 126.

The receiving portion 121 has an annular shape having an inner peripheral edge and an outer peripheral edge in a plan view. The receiving portion 121 is formed so that the extrusion shaft portion 4 fits inside the inner peripheral edge, while the outward protrusion 5 protruding from the extrusion shaft portion 4 projects to the outside of the inner peripheral edge. Therefore, the receiving portion 121 is a portion where the extrusion shaft portion 4 can be inserted, but the protrusion 5 abuts and cannot be inserted. In the present embodiment, the receiving portion 121 is composed of a lower receiving portion 121A and an upper receiving portion 121B.

As shown in FIGS. 2 and 3, the lower receiving portion 121A is located outside the accommodating member 10 and is closest to the accommodating member 10 among the plurality of protrusions 5 of the extruded member 2, and is then inserted into the accommodating member 10. The primary insertion protrusion (protrusion 5F in the illustrated example) passes through the avoidance portion 122 in the axial direction and passes through the regulation portion 12 by being located at a predetermined position having a specific angular relationship around the axis with respect to the regulation portion 12. Occasionally, the secondary insertion projection (projection 5G in the illustrated example), which is located one rear of the primary insertion projection 5F and is inserted into the accommodating member 10 next to the primary insertion projection 5F, abuts 2 This is a portion that prohibits the axial movement of the next insertion protrusion 5G. Further, it is a portion where the secondary insertion protrusion 5G slides in the circumferential direction when the extrusion member 2 rotates.

The upper receiving portion 121B is located above the lower receiving portion 121A. The upper receiving portion 121B is subjected to the secondary insertion when the primary insertion projection 5F passes through the regulating portion 12 and the secondary insertion projection 5G slides on the lower receiving portion 121A in the circumferential direction when the extrusion member 2 rotates. This is a portion where the tertiary insertion protrusion (protrusion 5H in the illustrated example), which is located one rear of the protrusion 5G and is inserted into the accommodating member 10 next to the secondary insertion protrusion 5G, slides in the circumferential direction. The upper receiving portion 121B is connected to the lower receiving portion 121A by two step portions 123 and 124 rising from the lower receiving portion 121A.

As shown in FIGS. 1 to 5, the avoidance portion 122 is located in the axial direction of the protrusion 5 when the protrusion 5 is located at a predetermined position having a specific angular relationship around the axis with respect to the regulation portion 12 of the accommodating member 10. It is a portion that allows the protrusion 5 to pass through the regulation portion 12 by allowing the movement to the. As shown in FIGS. 17 and 20 to 21, the avoidance portion 122 is provided on the inner peripheral edge of the receiving portion 121 (lower receiving portion 121A in the present embodiment), and a part of the inner peripheral edge is dented. It is composed of recesses formed by. The avoidance portion 122 is arranged at one boundary portion between the lower receiving portion 121A and the upper receiving portion 121B. The avoidance portion 122 is formed in a shape that allows the protrusion 5 to pass through the inside in the axial direction. In the present embodiment, the avoidance portion 122 has a trapezoidal shape (specifically, a right-angled trapezoidal shape) in cross section. The avoidance portion 121 extends in the axial direction by a predetermined length, and has a bottom surface 122A located outside the inner peripheral edge of the receiving portion 121, and an inclined surface 122B connecting the surrounding portion 125 and the bottom surface 122A, which will be described later. ing.

The step portion 123 is provided at a position adjacent to the avoidance portion 121 on the rotation direction side of the extrusion member 2. The step portion 123 is a portion where the protrusion 5 abuts when the protrusion 5 reaches the predetermined position and is located on the avoidance portion 121 due to the rotation of the extrusion member 2.

The surrounding portion 125 is a portion constituting the inner peripheral surface of the regulating portion 12, and extends downward by a predetermined length from the inner peripheral edge of the receiving portion 121 in the axial direction. The surrounding portion 125 surrounds the extrusion shaft portion 4 to be inserted into the accommodating member 10, and the guide portion 8 of the extrusion shaft portion 4 comes into contact with the extrusion shaft portion 4 to guide the extrusion shaft portion 4 to be inserted straight in the axial direction. In the present embodiment, the surrounding portion 125 has a lower-stage side surrounding portion 125A that hangs down from the inner edge of the lower-stage receiving portion 121A, and an upper-stage side surrounding portion 125B that hangs down from the inner edge of the upper-stage receiving portion 121B. The lower side surrounding portion 125A is continuous with the avoiding portion 121 in the circumferential direction.

The inclined portion 126 is connected to the tip of the surrounding portion 125. The inclined portion 126 has an inverted tapered shape that is inclined so as to gradually expand outward in the radial direction toward the tip end side. In the present embodiment, the inclined portion 126 has a lower inclined portion 126A connected to the lower side surrounding portion 125A and an upper inclined portion 126B connected to the upper stage side surrounding portion 125B. An arcuate leg portion 127 hangs down from the tip of the upper inclined portion 126B, and the leg portion 127 is connected to the lower inclined portion 126A. The inclined portion 126 is a portion of the regulating portion 12 where the protrusion 5 abuts when the extrusion member 2 is pulled out from the accommodating member 10 to exert a downward pressing force on the protrusion 5, and the inclined portion 126 has a reverse tapered shape. Due to the inclination, the protrusion 5 can be smoothly displaced inward, and the protrusion 5 can easily pass through the regulation portion 12. Further, the upper inclined portion 125B retracts radially outward from the locus drawn by the protrusion 5 when the extrusion member 2 is rotated, so that the extrusion member 2 can smoothly rotate. ..

As shown in FIGS. 17 to 19, the discharge unit 13 has a cylindrical shape and a tapered shape that tapers toward the tip, and discharges the housing body in the housing portion 11 from the discharge port 130 on the tip side. .. The discharge unit 13 has a plurality of contact portions 131 at the tip below the discharge port 130, which are in contact with the surface to be adhered to which the housing body discharged from the discharge port 130 is attached. The plurality of contact portions 131 are arranged at intervals in the circumferential direction, and a gap S is provided between the contact portions 131 adjacent to each other in the circumferential direction. This gap S enables the housing body to be discharged in a direction orthogonal to the axial direction when the housing body is discharged from the discharge port 130 of the discharge unit 13 toward the surface to be adhered along the axial direction. do. As a result, the accommodating body adheres to the adhered surface so as to spread to the outside of each contact portion 131, so that the shape of the accommodating body adhering to the adhered surface can be changed to various shapes according to the shape of the gap S. can do. For a detailed description of the discharge unit 13, Japanese Patent Application Laid-Open No. 2016-124595 can be referred to.

As shown in FIGS. 1, 3, 5, and 17, the plug member 14 is arranged in the accommodating portion 11 and seals the opening on the other end side of the accommodating portion 11. Further, the plug member 14 moves in the accommodating portion 11 toward the tip side as the extruded member 2 moves with respect to the accommodating member 10 in the axial direction, thereby pressing the accommodating body in the accommodating portion 11 toward the discharging portion 13. do. The plug member 14 has a sliding portion 140, an engaged portion 141, and a pressing portion 142.

The sliding portion 140 has a cylindrical shape, and the outer peripheral surface can be brought into contact with the inner peripheral surface of the accommodating portion 11. The sliding portion 140 moves in the accommodating portion 11 while the outer peripheral surface abuts on the inner peripheral surface of the accommodating portion 11.

The engaged portion 141 has a cylindrical shape, and is arranged concentrically with the sliding portion 140 inside the sliding portion 140. In the engaged portion 141, the engaging portion 7 at the tip of the extruded member 2 can be fitted inward, and the engaged portion 141 is integrated with the extruded member 2, so that the sliding portion 140 is the extruded member 2. At the same time, it moves in the accommodating portion 11.

The pressing portion 142 has a hollow truncated cone shape, and is connected to the tips of the sliding portion 140 and the engaged portion 141, respectively. The pressing portion 142 closes the opening on the tip end side of the sliding portion 140 over the entire area.

As shown in FIGS. 1 and 17, the cap 15 is detachably attached to one end side of the accommodating portion 11 in the axial direction. By attaching the cap 15 to the accommodating portion 11 when not in use, the inside of the accommodating portion 11 is sealed to prevent the accommodating body from coming into contact with air. The cap 15 is removed from the accommodating portion 11 at the time of use.

Next, a method of using the extruder 1 having the above-described configuration will be described.

When using the extrusion device 1, first, the extrusion member 2 is attached to the accommodating member 10. Specifically, as shown in FIG. 1, after adjusting the orientation of the extrusion shaft portion 4 with respect to the regulation portion 12 around the axis so that the protrusion 5A at the head of the extrusion member 2 passes through the avoidance portion 122 of the regulation portion 12. , The extrusion member 2 is set in the accommodating member 10. Then, by pushing the extrusion member 2, the extrusion shaft portion 4 is inserted into the accommodating member 10 by a predetermined stroke. By the pushing operation of the extrusion member 2, the engaging portion 7 at the tip of the extrusion member 2 is fitted inside the engaged portion 141 of the plug member 14, so that the extrusion member 2 and the plug member 14 are integrated. ..

When the extrusion member 2 is mounted, the cover portion 6 provided at the tip of the extrusion shaft portion 4 is fitted inside the regulation portion 12, and the outer peripheral surface of the cover portion 6 is along the inner peripheral surface of the regulation portion 12, so that the extrusion member 2 is extruded. The member 2 can be set straight with respect to the accommodating member 10, and the extrusion shaft portion 4 can be easily inserted by the subsequent pushing operation of the extrusion member 2. Further, when the cover portion 6 is fitted inside the regulating portion 12, the leading protrusion 5A protrudes outward from the outer peripheral edge of the cover portion 6, so that the leading protrusion 5A can be easily found. Therefore, by adjusting the orientation of the extrusion shaft portion 4 with respect to the regulating portion 12 around the axis with reference to the leading protrusion 5A, the leading protrusion 5A can be reliably aligned with the avoidance portion 122, and the cover can be provided. The portion 6 can be easily fitted inside the regulating portion 12. Further, when the leading protrusion 5A passes through the avoiding portion 122 of the regulating portion 12 in the axial direction, at least a part of the side surface 51 of the leading protrusion 5A comes into contact with the inner peripheral surface of the avoiding portion 122, so that the protrusion 5A is extruded. The insertion posture when the shaft portion 4 is inserted into the accommodating member 10 is stable. Therefore, the extrusion shaft portion 4 can be inserted straight into the accommodating member 10.

Then, the extrusion member 2 is further pushed until the protrusion 5C located one rear of the leading protrusion 5A abuts on the lower receiving portion 121A of the regulation portion 12, so that the operation of mounting the extrusion member 2 on the accommodating member 10 is completed. At this time, the protrusion 5D located one rear of the protrusion 5C that abuts on the lower receiving portion 121A of the regulating portion 12 is located above the upper receiving portion 121B of the regulating portion 12. When the mounting of the extruded member 2 is completed, the cap 15 of the accommodating member 10 is removed. The cap 15 may be removed before mounting the extrusion member 2.

Next, the protrusion 5C is brought closer to the avoidance portion 122 of the regulation portion 12 by rotating the extrusion member 2 clockwise in a state where the protrusion 5C is in contact with the lower receiving portion 121A of the regulation portion 12. When the protrusion 5C abuts on the step portion 123 of the regulating portion 12 by the rotation operation of the extrusion member 2, the rotation operation of the extrusion member 2 is restricted, and the protrusion 5C is located on the avoidance portion 122. As a result, the protrusion 5C can pass through the regulation portion 12 together with the extrusion shaft portion 4 by passing through the avoidance portion 122, and the extrusion member 2 can be pushed in.

During the rotation operation of the extrusion member 2, the protrusion 5C is restrained by the extrusion shaft portion 4 because the upper end and the lower end are connected to the extrusion member 4, so that the protrusion 5C abuts on the step portion 123 to cause the step portion 123. Even if the protrusion 5C receives a pressing force in the circumferential direction, it is restricted from being displaced inward. If the protrusion 5C is displaced inward when it receives a pressing force in the circumferential direction from the step portion 123, the protrusion 5C may exceed a predetermined position on the avoidance portion 122 without stopping at the step portion 123. Since the displacement inward is restricted by the pressing force in the circumferential direction from 123, the protrusion 5C can be stopped by the step portion 123 even if the extrusion member 2 is strongly rotated, and the predetermined shape on the avoidance portion 122 can be stopped. It can be reliably positioned at the position.

Next, after the contact portion 131 of the discharge portion 130 of the accommodating member 10 is brought into contact with the surface to be adhered, the extrusion shaft portion 4 is further inserted into the accommodating member 10 by pushing the extrusion member 2. At this time, the guide portion 8 of the extrusion shaft portion 4 comes into contact with the inner peripheral surface (surrounding portion 125) of the regulation portion 12, and when the protrusion 5C passes through the avoidance portion 122 of the regulation portion 12 in the axial direction, the side surface 51 At least a part of the avoidance portion 122 comes into contact with the inner peripheral surface of the avoidance portion 122. Therefore, the insertion posture when the extrusion shaft portion 4 is inserted into the accommodating member 10 is stable. Therefore, the extrusion shaft portion 4 can be inserted straight into the accommodating member 10. By the pushing operation of the extrusion member 2, the plug member 14 of the accommodating member 10 is pressed toward the discharge portion 13 by a predetermined stroke, and a part of the accommodating body in the accommodating member 10 is pressed from the discharge portion 13 to the adhered surface by the plug member 14. The container is attached to the surface to be adhered. Then, by pushing the extrusion member 2 until the protrusion 5D located one rear of the protrusion 5C abuts on the lower receiving portion 121A of the regulation portion 12, the first pushing operation of the housing body is completed.

The rotation operation of the extrusion member 2 and the above-mentioned rotation operation of the extrusion member 2 so that the protrusions 5D to 5I of the extrusion member 2 are sequentially positioned at predetermined positions on the avoidance portion 122, and then pass through the avoidance portion 122 and the regulation portion 12. By alternately repeating the pushing operation, the accommodating body in the accommodating member 10 can be spit out and adhered to the surface to be adhered in a plurality of times. Then, as shown in FIG. 4, when the extruded member 2 is pushed to the end by passing the rearmost protrusion 5B through the regulating portion 12 via the avoiding portion 122, all the accommodating bodies in the accommodating member 10 are discharged. ..

When all the accommodating bodies in the accommodating member 10 are pushed out, the extruding member 2 is pulled out from the accommodating member 10 by pulling the extruding member 2 in the direction opposite to the direction of the pushing operation described above. At this time, in the present embodiment, the extrusion shaft portion 4 of the extrusion member 2 passes through the regulation portion 12, and among the plurality of protrusions 5, the protrusions 5A, 5B, 5D of the same protrusion group as the last protrusion 5B, The 5F and 5H pass through the regulating portion 12 because their positions overlap with the avoiding portion 122, but the remaining protrusions 5C, 5E, 5G and 5I are inclined portions of the regulating portion 12 when the extruded member 2 is pulled out from the accommodating member 10. It hits 126 (upper inclined portion 126B). However, since the through holes 43 are formed inside the protrusions 5C, 5E, 5G, and 5I, the protrusions 5C, 5E, 5G, and 5I abut against the inclined portion 126 (upper inclined portion 126B) of the regulating portion 12. When a downward pressing force is received from the inclined portion 126 (upper inclined portion 126B), the protrusions 5C, 5E, 5G, and 5I can be displaced inward. As a result, the protrusions 5C, 5E, 5G, and 5I are displaced to the inside of the surrounding portion 125, so that the protrusions 5C, 5E, 5G, and 5I also pass through the regulation portion 12. Therefore, the extruded member 2 can be easily pulled out from the accommodating member 10.

When the extrusion member 2 is pulled out, as shown in FIG. 4, the rearmost protrusion 5B of the extrusion member 2 is fitted inside the avoidance portion 122 of the regulation member 12. Therefore, since the extruded member 2 is in a state in which the rotation operation with respect to the accommodating member 10 is prohibited, the extruded member 2 unexpectedly rotates and the protrusions 5A, 5B, 5D, 5F, and 5H are displaced from the avoiding portion 122. It is possible to maintain the protrusions 5A, 5B, 5D, 5F, and 5H in a state where the positions overlap with the avoidance portion 122. Therefore, when the extruded member 2 is pulled out from the accommodating member 10, the extruded member 2 is used to adjust the positional relationship between the protrusion 5 and the restricting portion 12, such as aligning the protrusion 5 with respect to the avoiding portion 122 of the restricting portion 12. No need to rotate.

Further, since the protrusions 5C, 5E, 5G, and 5I are formed so as to protrude greatly from the extrusion shaft portion 4 from the upper end to the lower end, the inclined portion 126 (upper inclined portion 126B) is formed when passing through the regulating portion 12. ), The protrusions 5C, 5E, 5G, and 5I are smoothly displaced inward. Therefore, since the protrusions 5C, 5E, 5G, and 5I can be easily passed through the regulating portion 12, the extruded member 2 can be more easily pulled out from the accommodating member 10.

After the extraction operation of the extrusion member 2, the accommodating member 10 is discarded, while the extruding member 2 can be reused when extruding the accommodating body in another accommodating member 10.

As described above, according to the extrusion device 1 of the present embodiment, when the extrusion member 2 is mounted on the accommodating member 10, the cover portion 6 provided on the tip end side of the extrusion shaft portion 4 can be fitted inside the regulation portion 12. Therefore, the extrusion member 2 can be easily set with respect to the accommodating member 10, and the extrusion shaft portion 4 can be easily inserted by the subsequent pushing operation of the extrusion member 2. Further, in order to insert the extrusion shaft portion 4 into the accommodating member 10 with a predetermined stroke when the extrusion member 2 is mounted, the leading protrusion located on the most tip side of the extrusion shaft portion 4 among the plurality of protrusions 5 of the extrusion member 2. It is necessary to pass the avoidance portion 122 of the regulation portion 12 for 5A, but the extrusion shaft portion 4 is contained inside the outer peripheral edge of the cover portion 6 in the bottom view, whereas the protrusion 5 including the leading protrusion 5A is included. Is exposed on the outside of the cover portion 6, so that it is possible to easily find at which position in the circumferential direction of the extrusion shaft portion 4 the leading protrusion 5A is provided. Therefore, in order for the leading protrusion 5A to pass through the avoidance portion 122 of the regulation portion 12, it becomes easy to adjust the orientation of the extrusion shaft portion 4 with respect to the regulation portion 12 around the axis, and the cover portion 6 is placed inside the regulation portion 12. At the time of fitting, the leading protrusion 5A can be reliably aligned with the avoidance portion 122. Therefore, the extruded member 2 can be easily attached to the accommodating member 10.

In addition, since the extrusion shaft portion 4 is formed in a shape that is not circular in cross-sectional view, when the extrusion member 2 is rotated, the outer peripheral surface of the extrusion shaft portion 4 covers a wide range in the circumferential direction and becomes the inner peripheral surface of the regulation portion 12. There is no risk of contact. Therefore, since the frictional resistance that the extrusion shaft portion 4 receives from the regulation portion 12 when the extrusion member 2 is rotated can be suppressed, the rotation operation of the extrusion member 2 can be easily performed and the operability can be improved.

Further, in the extrusion device 1 of the present embodiment, when the extrusion shaft portion 4 is inserted into the accommodating member 10, the guide portion 8 of the extrusion shaft portion 4 comes into contact with the inner peripheral surface of the regulation portion 12. Therefore, since the insertion posture of the extrusion shaft portion 4 at the time of insertion into the accommodation member 10 is stable, it is possible to prevent the extrusion shaft portion 4 from rattling or tilting with respect to the accommodation member 10. It is possible to improve the operability of the pushing operation of the extrusion member 2.

Further, in the extrusion tool 1 of the present embodiment, the structure of the extrusion shaft portion 4 is not complicated and is simple. If the structure of the extrusion shaft portion 4 is complicated as in the conventional example, the mold or the like is likely to be damaged during the manufacture of the extrusion tool 1, but the extrusion tool 1 of the present embodiment has succeeded in simplifying the structure. The mold is not easily damaged during manufacturing, and can be manufactured easily and at low cost.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the extrusion device 1 of the above embodiment, the protrusion 5 is provided so that the upper end and the lower end of the protrusion 5 are connected to the extrusion shaft portion 4 with respect to the extrusion shaft portion 4, but the upper end or the lower end of the protrusion 5 is extruded. It may be configured to be connected to the member 4. 22 to 25 show the extrusion member 2 of the modified example. The extrusion member 2 shown in FIGS. 22 to 25 has the same basic configuration as the extrusion member 2 of the above-described embodiment, and the description thereof will be omitted by assigning the same reference numerals to the corresponding configurations.

In the extrusion member 2 shown in FIGS. 22 to 25, an opening 45 connected to the through hole 43 is formed below the protrusion 5 in the extrusion shaft portion 4. The upper end of the protrusion 5 is connected to the extrusion shaft portion 4 with respect to the extrusion shaft portion 4, but the lower end is not connected to the extrusion shaft portion 4 and is a free end. As a result, the protrusion 5 can be more favorably displaced toward the inner through hole 43 when the downward pressing force is applied, as compared with the case where the upper end and the lower end are connected to the extrusion shaft portion 4. On the other hand, the protrusion 5 is more likely to be displaced in the circumferential direction and easily broken when the upper end and the lower end are connected to the extrusion shaft portion 4 when subjected to a pressing force in the circumferential direction, as shown in FIGS. 22 to 25. The extrusion member 2 further has a reinforcing portion 9 in order to prevent the protrusion 5 from being displaced in the circumferential direction.

When the reinforcing portion 9 hits the step portion 123 of the regulating portion 12 of the accommodating member 10 during the rotation operation of the extrusion member 2, the protrusion 5 receives a pressing force in the direction opposite to the rotation direction, so that the protrusion 5 is in the rotation direction. The extrusion shaft portion 4 is provided so as to restrict displacement in the opposite direction. Specifically, of the four protrusions 44 of the cross-shaped extrusion shaft portion 4, one of the protrusions 44 provided with the protrusions 5 is projected from the plate surface of the protrusion 44 on the side opposite to the rotation direction. The reinforcing portion 9 extends in an arch shape toward a position near the protrusion 5 on the plate surface of the protruding portion 44 provided with the 5. As a result, even if the protrusion 5 receives a pressing force in the direction opposite to the rotation direction, the reinforcing portion 9 receives the pressing force, so that the protrusion 5 is restricted from being displaced in the direction opposite to the rotation direction. As a result, damage to the protrusion 5 can be prevented. The reinforcing portion 9 is also connected to an inner surface of the protrusion 5 protruding from the end faces 41A and 41B of the extrusion shaft portion 4 in the width direction. As a result, when the protrusion 5 is displaced inward by receiving a downward pressing force, the reinforcing portion 9 receives a part of the pressing force, so that the protrusion 5 is damaged even when the protrusion 5 is displaced inward. It can be difficult.

In the extrusion member 2 shown in FIGS. 22 to 25, an opening 45 connected to the through hole 43 is formed below the protrusion 5 in the extrusion shaft portion 4, but is connected to the through hole 43 above the protrusion 5. The opening 45 may be formed.

Further, in the extrusion member 2 shown in FIGS. 22 to 25, the rearmost protrusion 5B has the same shape as the other protrusions 5A, 5C to 5I. Also in the above embodiment, the rearmost protrusion 5B does not have to have a different shape from the other protrusions 5A, 5C to 5I, and may have the same shape.

The reinforcing portion 9 may also be provided in the above embodiment in which the upper end and the lower end of the protrusion 5 are connected to the extrusion shaft portion 4.

Further, in the above embodiment, the cover portion 6 has a circular shape in a cross-sectional view, but in the bottom view, the extrusion shaft portion 4 is included inside, and only the outward protrusion 5 protruding from the extrusion shaft portion 4 is outward. If the size is such that the extrusion shaft portion 4 is exposed and the outer peripheral surface is formed so as to be inscribed in the inner peripheral surface of the regulation portion 12 when the extrusion shaft portion 4 is inserted into the accommodating member 10, other shapes, for example, It may have a square shape or a diamond shape.

Further, in the above embodiment, the positional relationship of the plurality of protrusions 5 is determined so that the protrusion 5 and the protrusion 5 located one rear of the protrusion are separated by 180 ° in the circumferential direction. The positional relationship is not limited, and the angle at which a certain protrusion 5 and the protrusion 5 located one rear of the protrusion 5 are separated in the circumferential direction may be different from 180 °.

Further, in the above embodiment, the through hole 43 does not necessarily have to be formed in the extrusion shaft portion 4. Further, the regulating portion 12 of the accommodating member 10 has a structure in which the receiving portion 121, the surrounding portion 125, and the like have two upper and lower stages, but may have a one-stage structure.

Further, in the above embodiment, the protrusion 5 has a shape along the avoidance portion 122 of the regulation portion 12 of the accommodating member 10, but if it is possible to pass through the avoidance portion 122 in the axial direction, the shape thereof. Is not particularly limited.

1 Extruding tool 2 Extruding member 4 Extruding shaft part 5 Protrusion 5B Last protrusion 6 Cover part 8 Guide part 10 Accommodating member 12 Restricting part 13 Discharge part 40 Core part 43 Through hole 44 Protruding part 45 Opening 122 Avoiding part 123 Step part

Claims (3)

An extruder that can extrude the containment body in multiple steps.
An accommodating member that accommodates the accommodating body and has a discharge portion of the accommodating body on one end side in the axial direction.
An extruded member that is movable along the axial direction of the accommodating member and is rotatable around the axis of the accommodating member.
The extruded member
An extrusion shaft portion that is inserted into the accommodating member from the other end side in the axial direction and extrudes the accommodating body from the ejection portion as the extruding member moves.
The extrusion shaft portion has a plurality of protrusions provided at intervals in the axial direction.
The accommodating member has a ring-shaped regulating portion that regulates the movement of the extruded member so that the extruded shaft portion is inserted stepwise on the other end side in the axial direction.
The restricting portion is formed when a protrusion located outside the accommodating member of the plurality of protrusions and located on the tip end side of the extrusion shaft portion is positioned at a predetermined position as the extrusion member rotates. It has an avoidance part that allows axial movement, and has an avoidance part.
The extruded shaft portion has a shape that is not circular in cross-sectional view.
At the tip of the extrusion shaft portion, only the plurality of protrusions are exposed to the outside when viewed from the bottom surface, and the outer peripheral surface is inscribed in the inner peripheral surface of the regulation portion when the extrusion shaft portion is inserted into the accommodating member. An extrusion device provided with a cover portion having a. The extrusion device according to claim 1, wherein the extrusion shaft portion has a plate shape or a columnar shape. The extrusion device according to claim 1 or 2, wherein the extrusion shaft portion includes at least one guide portion that extends in the axial direction and abuts on the inner peripheral surface of the regulation portion.

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