JP2009254419A - Knock type advancing container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a knock type advancing container which, in the initial stage of rotational operation thereof, can produce a rotational force without relaying on a spring force and on the shape of a cam, which uses a less number of parts, and can advance a fixed amount of contents by the use of a screw. <P>SOLUTION: The knock type advancing container is a container from which contents can be advanced by axially forwardly pressing a top cap 12 mounted to the rear end of a shaft body 10. The knock type advancing container has a mechanism section A for converting a pressing force applied to the top cap 12 by operation of a user into a rotational force, a screw body 28 fixed to the shaft body 10, and a screw rod 30 engaged with the screw body 28. When rotating the screw rod 30 by the rotational force which the mechanism section A obtains by conversion, the screw rod 30 is advanced via the screw body 28 to advance the contents. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a knock-type feeding container for feeding out liquid contents such as liquid cosmetics, fluids, and other solid contents such as sticks by knocking a crown at the rear end of a shaft body.

  A conventional knock-type feeding container uses a cam mechanism similar to a ballpoint pen, and each of the knock body, the rotor, and the inner cylinder is provided with a cam, and the rotor in a state of being urged rearward by a spring is continuously provided. The rotation of the rotor is transmitted to a screw rod provided with a screw portion (male screw) on the outer diameter portion. Since this screw rod (male screw) is screwed with a screw portion (female screw) provided at the inner diameter portion of the screw body fixed at least in the rotational direction to the shaft body, the screw rod rotates to the screw body. On the other hand, it is known that the threaded rod advances, and that the piston fitted to the tip of the threaded rod advances together with the advance of the threaded rod to feed out the contents (called Kernock type). (Unexamined-Japanese-Patent No. 2002-068332: Patent document 1).

In addition, there is known one that uses a valve, opens and closes the valve by knocking, and discharges the contents with a pressure difference in the tank (Japanese Utility Model Publication No. 6-4837: Patent Document 2).
JP 2002-066832 A No. 6-4837

  However, in the above-mentioned knock-type feeding container, in the former type in which the threaded rod is advanced, the rotational force of the rotor is determined by the cam shape and the strength of the spring. When the sticking phenomenon occurs due to the passage of time of the piston, it is considered that the rotation operation becomes impossible. In addition, the number of parts increases due to the structure, and there are limitations on appearance such as a reduction in diameter. In the method using the latter valve, quantitative discharge is difficult, and the viscosity of the dischargeable contents is limited. Moreover, since there is a possibility that the contents may be direct current, it is necessary to devise a means for preventing direct current when capping.

  In view of such circumstances, the present invention is capable of exerting rotational force regardless of only the spring force and the cam shape in the initial operation of the rotation, reducing the number of parts as compared with the prior art, and using screws. Thus, the present invention intends to provide a knock-type feeding container capable of dispensing the contents quantitatively.

  The present invention relates to a knock-type feeding container.

The present invention provides a knock-type feeding container capable of feeding out the contents in the housing portion by the user operating the crown provided at the rear end portion of the shaft body.
It has a mechanism that converts the pressing force of the crown by the user's operation into a rotational force, a screw body that is fixed to the shaft body, and a screw rod that is screwed to the screw body. The screw rod is rotated by the rotational force, and the screw rod is advanced through the screw body to feed out the contents,
The mechanism that converts the pressing force into the rotational force is disposed so that the crown can be rotated and the axial movement is restricted, and a first cam surface facing forward and a second cam surface facing backward are formed. A rotating body that is annular and is disposed on the shaft body so as to be rotatable and axially movable;
A first fixed cam surface and a second fixed cam surface, which are respectively opposed to the first cam surface and the second cam surface and fixed to the shaft main body in the axial direction and the rotational direction;
At least one of the first cam surface and the first fixed cam surface is formed by forming a plurality of first teeth having a slope inclined forward with respect to a predetermined rotation direction of the rotating body at the same pitch in the predetermined rotation direction. Yes,
At least one of the second cam surface and the second fixed cam surface is formed by forming a plurality of second teeth having inclined surfaces inclined rearward with respect to a predetermined rotation direction of the rotating body at the same pitch in the predetermined rotation direction. Yes,
With the pressing force, the first cam surface is guided along a slope inclined forward of the teeth in a state where the first cam surface of the rotating body is engaged with the first fixed cam surface. As a result, the rotating body moves forward and rotates in a predetermined rotation direction, while the second cam surface of the rotating body meshes with the second fixed cam surface by the release of the press. The mechanism portion is configured so that the rotating body moves backward and rotates in a predetermined rotation direction by being guided along a slope inclined backward.
A knock-type feeding container characterized in that the screw rod is rotated by rotation of a rotating body.

  In the present invention, when the first cam surface of the rotating body is engaged with the first fixed cam surface, the second cam surface on the rotating body side and the second fixed cam surface are rotated. The phase is shifted with respect to one tooth of the cam in the direction (shift may be 1/4 to 3/4, most preferably half-phase shift), and the second cam surface on the rotating body side is In the state of being engaged with the second fixed cam surface, the first cam surface on the rotating body side and the first fixed cam surface are out of phase with respect to one tooth of the cam in the rotation direction (the shift is 1). / 4 to 3/4 may be used, and most preferably, a half-phase shift) relationship is set.

  In the present invention, in a state where the pressure is released, the rotating body is moved rearward so that the second cam surface of the rotating body is brought into contact with the second fixed cam surface to be in meshing state. It is preferable that a spring member for biasing is provided.

  In the present invention, the rotating body is provided with an odd-shaped cross-sectional hole such as an oval type, and a screw body having a screw portion made of an internal thread and a first fixed cam surface is fixed to the shaft body, and the odd-shaped cross-sectional hole of the rotating body A screw rod formed by rotating the rotating body in a state in which a screw rod having a cross-sectional shape and a male screw formed on the outer peripheral portion is screwed into the screw portion of the screw body and passed through the deformed cross-sectional hole of the rotating body Is preferably rotated.

In addition, the present invention provides a knock-type container for delivering contents by pressing a crown provided at the rear end of the shaft body.
A screw body having a threaded portion on the inner diameter at the front and a first fixed cam surface in the rearward direction at the front and a hollow at the rear from the center is fixed in the shaft body that accommodates the contents,
A hollow inside of the screw body is formed in an annular shape, a first cam surface meshing with the first fixed cam surface is formed in the front portion, and a second cam surface is formed in the rear portion, and the inner diameter front portion A rotating member provided with a modified cross-sectional hole, a spring member that urges the rotating member backward with respect to the screw member between the rotating member and the screw member, and a second cam surface of the rotating member. A cam body provided with a second fixed cam surface and fixed to a rear portion of the screw body;
The rotating body is sandwiched from the front and rear by the screw body and the cam body, and the rotating body is biased toward the cam body by the spring member.
A screw rod having an outer diameter provided with a screw and having an irregular cross section is screwed into a screw portion of the screw body, and the screw rod and the rotary body are movable in the axial direction and rotated in the axial direction by the irregular cross sectional hole of the rotary body. A piston body that is slidable with the shaft body and moves integrally with the screw rod in the axial direction is fitted to the tip of the screw rod,
The crown is arranged in a rotatable and axially locked state at the rear of the rotating body,
In a state in which the first cam surface of the rotating body is engaged with the first fixed cam surface, the second cam surface on the rotating body side and the second fixed cam surface are The phase is shifted with respect to the teeth (shift may be 1/4 to 3/4, most preferably half-phase shift), and the second cam surface of the rotating body is fixed to the second fixed surface. In a state of being engaged with the cam surface, the first cam surface on the rotating body side and the first fixed cam surface are out of phase with respect to one tooth of the cam in the rotation direction (the deviation is 1/4 to 3 / The knock type feeding container is characterized in that it may be 4 and most preferably is set to a half-phase shift relationship.

  The knock type feeding container according to claims 1 to 5 of the present invention is a mechanism unit that converts a pressing force into a rotating force by rotating the rotating body by an operation in the axial direction of the rotating body by pressing the crown. It is characterized by having.

  That is, the mechanism for converting the force generated by pressing the crown to the rotational force includes a substantially annular rotating body in which a first cam surface facing forward and a second cam surface facing backward are formed; The first fixed cam surface and the second fixed cam surface arranged opposite to each other and fixed to the shaft main body in the axial direction and the rotational direction, respectively. When the first cam surface of the rotating body is engaged with the first fixed cam surface, the first cam surface is guided along a slope inclined forward of the teeth. The rotating body moves forward and rotates in a predetermined rotating direction, while the second cam surface of the rotating body meshes with the second fixed cam surface by releasing the pressing, and the rear of the teeth. The rotating body is guided along a slope inclined to Square moved and configured to rotate in a predetermined rotation direction.

  Therefore, by repeatedly pressing the crown and releasing the crown, the rotating body receives a rotational motion corresponding to each tooth of the cam, and can rotate the rotating body at the time of pressing and releasing to feed the screw rod. By repeating the above knocking operation, the axial knocking operation and the release operation are converted into rotational force, and the screw rod is rotated, for example, the piston body is advanced to quantitatively feed out the contents. It becomes possible.

  In addition, since the initial rotation depends on the pressing force and the strength of the rotational force, it is easy to cope with the case where a certain force or more is required for the initial rotation due to the piston portion sticking to the housing portion.

  In the present invention, in a state where the first cam surface of the rotating body is engaged with the first fixed cam surface, the second cam surface on the rotating body side and the second fixed cam surface are In a state where the phase is shifted with respect to one tooth of the cam in the rotation direction, and the second cam surface on the rotating body side is engaged with the second fixed cam surface, the first on the rotating body side is set. If the cam surface and the first fixed cam surface are set to have a phase shift with respect to one tooth of the cam in the rotational direction, there is a phase shift of each tooth. The pressing and releasing of the crown can be converted into the rotation of the rotating body. The cam teeth may be shifted by 1/4 to 3/4. In this case, the half-phase can more reliably convert the pressing and release of the crown to the rotation of the rotating body. Further, if the first cam surface and the second cam surface have the same phase, the phases of the first fixed cam surface and the second fixed cam surface may be shifted.

  Further, in a state in which the pressure is released, a spring that urges the rotating body rearward so that the second cam surface of the rotating body is brought into contact with the second fixed cam surface to be in meshing state. If the member is provided, the second cam surface can be surely brought into contact with the second fixed cam surface at the time of release of the press, and an excellent effect such as ensuring the operation can be obtained.

  Hereinafter, a knock type feeding mechanism according to the present invention will be described based on an embodiment shown in the drawings.

  FIGS. 1-10 is explanatory drawing of the knock type delivery container which concerns on embodiment. That is, FIGS. 1A and 1B are explanatory views of the knock-type feeding container according to the embodiment of the present invention, and are a cross-sectional view of the whole knock-type feeding container in a state before pressing the crown, and of the mechanism portion. An enlarged view is shown. 2 (a) and 2 (b) show an overall cross-sectional display of the knock-type feeding container of FIG. 1 when the crown is pressed and an enlarged view of the mechanism portion. FIGS. 3A to 3E are operation explanatory views of the knock mechanism of the knock-type feeding container. 4A and 4B are a perspective view and a longitudinal sectional view of the shaft body. FIGS. 5A, 5B, 5C, and 5D are a front perspective view, a rear perspective view, a longitudinal sectional view, and an enlarged sectional view of a screw body. 6A and 6B are a side view and a cross-sectional view taken along line XX of the screw rod. 7A, 7B, and 7C are a front perspective view, a rear perspective view, and a longitudinal sectional view of the piston body. 8A, 8B, 8C, 8D, and 8E are a front perspective view, a rear perspective view, a side view, a longitudinal sectional view, and a front view of a rotating body. FIGS. 9A, 9B, 9C, and 9D are a front perspective view, a rear perspective view, a side view, and a longitudinal sectional view of the cam body. FIGS. 10A, 10B, and 10C are a front perspective view, a side view, and a longitudinal sectional view of the crown.

  As shown in FIG. 1, the knock-type feeding container according to the embodiment is a container that can feed the contents by pressing the crown 12 disposed at the rear end of the shaft body 10 forward in the axial direction. A mechanism portion A for converting the pressing force of the crown 12 by a user's operation into a rotational force, a screw body 28 fixed to the shaft body 10, and a screw rod 30 screwed into the screw body 28. The mechanism portion A has a structure in which the screw rod 30 is rotated by the rotational force converted and the screw rod 30 is advanced through the screw body 28 to feed out the contents.

  In the knock-type feeding container, a joint 14, a pipe joint 16, a pipe 18, a tip shaft 20, and a head 22 are attached to the front end portion 10 a of the shaft body 10, and the shaft body 10 is fed from a content container 24 in the shaft body 10. The contents are discharged through the pipe 18 to the tip of the neck 22. Further, the cap 26 can be attached after use.

  Specifically, as shown in FIGS. 1 and 4, the shaft body 10 has a front end portion 10 a having a small diameter in a step shape when viewed in the axial direction, and a cylindrical joint 14 and a pipe in the front end portion 10 a. The joint 16 is fitted in a state of being covered with the rear part of the front shaft 20, and a large number of fibers are bundled as an application body on the front side of the pipe joint 16 in the front part of the front shaft 20, or a brush-like shape made of an open cell body The head 22 is pinched. The application body can adopt an appropriate configuration other than the brush ear.

  The joint 14 has a substantially cylindrical shape with an enlarged diameter at the tip, and is fitted into the front end portion 10a of the shaft body 10, and a pipe joint 16 is inserted into the pipe 14 from the front into the forward opening of the joint 14. A liquid guiding pipe 18 is inserted and supported from the housing portion 24 toward the head 22. A cap 26 is fitted to the front end portion 10a so as to cover the head 22 and the front shaft 20.

[Mechanism A that converts pressing force into rotational force]
A mechanism portion A that converts a force generated by pressing the crown 12 into a rotational force includes a rotating body 36 having a first cam surface 32 and a second cam surface 34, and a screw having a first fixed cam surface 38. The body 28 and the cam body 42 having the second fixed cam surface 40 are main components.

[Rotating body 36]
As shown in FIGS. 1 and 8, the rotating body 36 is disposed such that the crown 12 can be rotated and its axial movement is restricted, and the first cam surface 32 facing forward and the second cam facing backward. The surface 34 is formed in an annular shape, and is disposed on the shaft body 10 so as to be rotatable and movable in the axial direction.

  As shown in FIG. 8, the rotator 36 has a generally hollow cylindrical ring shape, and has a first cam surface formed on the front surface at the front end portion in the axial direction and an oval shape in the inner diameter portion. A deformed cross-sectional hole 46 such as a mold is formed. Further, a second cam surface 34 facing rearward is formed on the rearward facing surface of the annular portion whose diameter is increased stepwise on the outer peripheral portion of the axially central portion of the rotating body 36. In addition, a flange-like uneven fitting portion 36 a is formed on the outer periphery of the rear end portion of the rotating body 36.

  As shown in FIG. 10, the crown 12 has a cylindrical container shape whose one end in the axial direction is closed, and an uneven stepped locking portion 12 a is formed on the inner periphery of the rear portion. When the rear end portion of the rotating body 36 is pushed in from the front end opening of the crown 12, the fitting portion is fitted into the locking portion 12a. Each dimension of the fitting part 36a and the latching | locking part 12a is formed so that the crown 12 can rotate with respect to the rotary body 36, and controls the movement of an axial direction.

[Screw body 28]
As shown in FIGS. 1 and 5, the screw body 28 is a substantially hollow cylindrical body having a front end portion reduced in a step shape and a rear end portion enlarged in a step shape. The front end portion is a cylindrical portion 28a having a reduced diameter in a step shape, and has a screw portion 48 in which an internal thread is formed on the inner diameter portion, and a first surface is provided on the rear surface of the cylindrical portion 28a having the screw portion 48. A fixed cam surface 38 is formed.

  A cylindrical portion 28b whose diameter is increased in a step shape at the rear end portion of the screw body 28 is a portion that inserts the crown 12 so that the crown 12 can be rotated and moved forward and backward, and there is a portion adjacent to the front of the cylindrical portion 28b. A slit 28c along the axial direction is formed so as to communicate with the inside and outside of the plurality of screw bodies 28, and a fitting portion 28d formed with irregularities on the outer peripheral portion is formed. Further, a plurality of groove portions 28e along the axial direction are formed in the front outer peripheral portion. A rib 28f for positioning a spring member 44, which will be described later, in the radial direction is formed in the front inner periphery of the screw body 28 so as to protrude inward and extend in the axial direction.

[Shaft body 10]
As shown in FIG. 4, the shaft body 10 has a front end portion 10 a with a reduced diameter, but a concave and convex stepped fitting portion 10 b is formed at the rear end portion of the inner peripheral surface, and slightly behind the center portion. The rib 10c projects inward and extends in the axial direction. When attaching the screw body 28 to the shaft body 10, the screw body 28 is inserted forward from the open rear end of the shaft body 10, and the rib 10c is advanced and fitted into the groove 28e. go.
Then, the fitting portion 10b is pressed and inserted over the concavity and convexity of the fitting portion 28d of the screw body 28, and at this time, the stepped diameter enlarged portion of the cylindrical portion 28b of the screw body 28 is moved to the rear of the shaft body 10. Proceed until it hits the end face. Since the rib 10c is tightly attached to the groove 28e and the fitting portion 10b is tightly attached to the fitting portion, the screw body 28 is fixed in the rotational direction and the axial direction with respect to the shaft main body 10, so that there is a mounting relationship.
The space in front of the screw body 28 of the shaft main body 10 constitutes a content accommodating portion 24.

[Cam body 42]
As shown in FIG. 9, the cam body 42 has a substantially hollow cylindrical shape, a second fixed cam surface 40 is formed on the front end surface, and a protrusion 42 a extends in the axial direction on the outer peripheral side surface from the center portion to the rear portion. The rear end portion 42b is slightly reduced in a step shape.

  As shown in FIG. 1, the cam body 42 is inserted into the screw body 28 in a state of being movably fitted on the outer periphery of the rotating body 36, and the protrusion 42a is inserted into the slit 28c of the screw body 28 to The portion 42b is fitted so as to be locked in the cylindrical portion 28b. Thereby, the cam body 42 is fixed so as not to move in the rotational direction and the axial direction with respect to the screw body 28, and the screw body 28 is fixed to the shaft body 10 as described above. 42 is also fixed to the shaft body 10 in the rotational direction and the axial direction.

[Spring member 44]
As shown in FIG. 1, the screw body 28 surrounds a side surface opposite to the second cam surface 34 of the annular projecting portion of the front outer periphery of the rotating body 36 and a first fixed cam surface 38 of the screw body 28. A spring member 44 is disposed between the two portions. The spring member 44 is brought into a meshed state by bringing the second cam surface 34 of the rotating body 36 into contact with the second fixed cam surface 40 in a state where the pressure on the crown 12 is released. Thus, there is a function of urging the rotating body 36 backward.

[Screw rod 30, piston body 50]
As shown in FIG. 6, the screw rod 30 is a rod-like long body having a cross-sectional shape that matches the deformed cross-sectional hole 46 of the rotating body 36 and a male screw 30 a formed on the outer peripheral portion. At the front end portion, a fitting portion 30b that protrudes in the radial direction like a flange is formed. A piston body 50 slidable with the shaft body 10 and moves integrally with the screw rod 30 in the axial direction is fitted to the tip of the screw rod 30.

  As shown in FIGS. 1 and 7, the piston body 50 includes a main body 50a slidably contacting the inner wall of the housing portion 24, a hollow cylindrical portion 50b extending rearward from the main body 50a, and an uneven fitting in the hollow cylindrical portion 50b. The joint part 50c is provided. The fitting portion is configured to fit the fitting portion 30b at the tip of the screw rod 30 to the fitting portion 50c of the piston body 50 to restrict the movement in the front-rear direction so as to be relatively rotatable. In this state, the piston body 50 Is disposed in the accommodating portion 24 of the shaft body 10 so as to be able to advance and retract.

  As shown in FIG. 1, the rotary body 36 is provided with an odd-shaped cross-sectional hole 46 such as an oval type, and a screw body 28 having a screw portion 48 made of an internal thread and a first fixed cam surface 38 is fixed to the shaft body 10. The screw rod 30 having a cross-sectional shape matching the modified cross-sectional hole 46 of the rotating body 36 and having an external thread 30a formed on the outer periphery thereof is screwed into the threaded portion of the screw body 28, and the modified cross-sectional hole of the rotating body 36 is formed. The threaded rod 30 is rotated by the rotation of the rotating body 36 in the state of passing through 46. By this rotation, the piston body 50 moves forward in the housing portion 24 and supplies liquid contents such as cosmetics to the neck 22 that is an application body in the front shaft 20.

  The first fixed cam surface 38 and the second fixed cam surface 40 face the first cam surface 32 and the second cam surface 34, respectively, and are fixed to the shaft body 10 in the axial direction and the rotational direction. Has been.

  The details of each of the first fixed cam surface 38 and the second fixed cam surface 40, and the first cam surface 32 and the second cam surface 34 will be described with reference to FIG. In FIG. 3, only one tooth is shown for the first cam surface 32 and the second cam surface 34 for convenience of illustration, but in the embodiment, a plurality of teeth are formed as shown in FIG. Yes. Of course, the number of the other teeth may be one or more as long as one tooth of the facing cam surface is continuous without a gap.

  Specifically, the first cam surface 32 and the first fixed cam surface 38 are inclined forward (downward in front view in FIG. 3) with respect to a predetermined rotation direction (leftward in front view in FIG. 3) of the rotating body 36. A plurality of first teeth 32a and 38a having inclined surfaces 32a1 and 38a1 are formed at the same pitch in a predetermined rotational direction.

  The second cam surface 34 and the second fixed cam surface 40 are inclined surfaces 34a1 that are inclined rearward (upward in the front view in FIG. 3) with respect to a predetermined rotation direction of the rotator 36 (in the leftward front view in FIG. 3) and A plurality of second teeth 34a and 40a having 40a1 are formed at the same pitch in a predetermined rotational direction. In the embodiment, the pitches of the first cam surface 32 and the first fixed cam surface 38 and the second cam surface 34 and the second fixed cam surface 40 are also formed to be the same. When the number of teeth on the facing cam surface is different, one of the first cam surface 32 and the first fixed cam surface 38 and one of the second cam surface 34 and the second fixed cam surface 40 have teeth. It is sufficient if the pitch is the same.

  In the state where the first cam surface 32 of the rotating body 36 is engaged with the first fixed cam surface 38 by the pressing force, the first cam surface 32 is inclined to the inclined surface 38a1 inclined forward of the teeth 38a. By being guided along (see FIGS. 3B to 3C), the rotating body 36 moves forward and rotates in a predetermined rotation direction.

  On the other hand, when the second cam surface 34 of the rotating body 36 is engaged with the second fixed cam surface 40 by the release of the pressing, the second cam surface 34 is inclined to the inclined surface 40a1 inclined to the rear of the teeth 40a. By being guided along (see FIGS. 3D to 3E), the rotating body 36 moves backward and rotates in a predetermined rotation direction. The mechanism part A is configured to rotate by each cam in the above operation, and the screw rod 30 is rotated by the rotation of the rotating body 36.

  Here, in a state where the first cam surface 32 of the rotating body 36 is engaged with the first fixed cam surface 38 (see FIG. 3C), the second cam surface on the rotating body 36 side. 34 and the second fixed cam surface 40 are set so as to be shifted by a half phase with respect to one tooth of the cam in the rotation direction, while the second cam surface 34 on the rotating body 36 side is the second cam surface 34. 3 (see FIG. 3E), the first cam surface 32 on the rotating body 36 side and the first fixed cam surface 38 are connected to one tooth of the cam in the rotational direction. Is set to a half-phase shifted relationship.

  Further, in a state where the pressure is released, the rotating body 36 is moved rearward so that the second cam surface 34 of the rotating body 36 is brought into contact with the second fixed cam surface 40 to be engaged. A biasing spring member 44 is provided.

  That is, the knock-type feeding container is formed in an annular shape inside the hollow of the screw body 28, and has a first cam surface 32 that meshes with the first fixed cam surface 38 at the front portion and a second portion. The rotating body 36 is formed in the rear part, and the rotating body 36 is provided behind the screw body 28 between the rotating body 36 and the screw body 28. A spring member 44 that biases the cam body 42 and a cam body 42 that includes a second fixed cam surface 40 that meshes with the second cam surface 34 of the rotating body 36 and is fixed to the rear portion of the screw body 28. The rotating body 36 is sandwiched from the front and rear by the screw body 28 and the cam body 42, and the rotating body 36 is biased toward the cam body 42 by the spring member 44.

  Then, the screw rod 30 having an outer diameter portion with a screw and having an irregular cross section is screwed into the screw portion 48 of the screw body 28, and the screw rod 30 and the rotary body 36 are formed by the irregular cross sectional hole 46 of the rotary body 36. Is movable in the axial direction and locked in the rotational direction, and a piston body 50 that is slidable with the shaft main body 10 and moves integrally with the screw rod 30 in the axial direction is fitted to the tip of the screw rod 30. .

  Further, the crown 12 is disposed at the rear portion of the rotating body 36 in a state where the crown 12 is rotatable and locked in the axial direction.

  As shown in FIG. 3, in a state where the first cam surface 32 of the rotating body 36 is engaged with the first fixed cam surface 38, the second cam surface 34 on the rotating body 36 side and the first cam surface The second fixed cam surface 40 is set so as to be half-phase shifted with respect to one tooth of the cam in the rotational direction, and the second cam surface 34 of the rotating body 36 meshes with the second fixed cam surface 40. In this state, the first cam surface 32 on the rotating body 36 side and the first fixed cam surface are set so as to be shifted by a half phase with respect to one tooth of the cam in the rotation direction.

  Next, the operation of the above-described embodiment will be described.

  In the knock-type feeding container, the first cam surface 32 and the second cam surface 34 of the rotating body 36, the first fixed cam surface 38 of the screw body 28, and the second fixed cam surface 40 of the cam body 42 are provided. The outline of the mutual operation is shown in FIGS.

  In the initial state where the crown 12 shown in FIG. 1 is not knocked (pressed), the rotating body 36 is pressed against the cam body 42 by the spring member 44 as shown in FIG. The cam surface 34 and the second fixed cam surface 40 of the cam body 42 are engaged with each other. In this state, the second cam surface 34 of the rotating body 36 has a vertex that is collinear with the first cam surface 32 in parallel to the axial direction, and is different from the first fixed cam surface 38 of the screw body 28. It is a state that is half-phase shifted.

  Next, as shown in FIG. 2, the crown 12 is pressed in the axial direction to start knocking.

  When knocking is started, the state changes from FIG. That is, the crown 12 and the rotating body 36 start moving forward integrally while compressing the spring member 44, and the second cam surface 34 of the rotating body 36 moves from the second fixed cam surface 40 of the cam body 42. Come away.

  When knocking continues, as shown in FIG. 3B, the first cam surface 32 of the rotating body 36 comes into contact with the first fixed cam surface 38 of the screw body 28 with a half-phase shift.

  As shown in FIG. 3 (c), when further pressed from this abutted state, the inclined surface 38 a 1 of the tooth 38 a of the first fixed cam surface 38 of the screw body 28 is moved to the first cam surface 32 of the rotating body 36. The inclined surface 32a1 of the tooth 32a slides, and the rotating body 36 reaches a position where the wall portion 32a2 of the tooth 32a comes into contact with the wall portion 38a2 of the tooth 38a of the first fixed cam surface 38 (shown in FIG. 3C). Moves forward while rotating in a predetermined direction. At this time, since the rotating body 36 is rotatably attached to the crown 12, the crown 12 itself does not rotate.

  Along with the rotation of the rotator 36 at the time of knocking, a screw rod 30 that passes through the deformed cross-sectional hole 46 disposed at the tip of the rotator 36 and that is regulated in the rotation direction and freely movable in the axial direction is provided. It rotates integrally with the rotating body 36. Since the screw rod 30 is screwed with the screw body 28 and the threaded portion 48, the screw rod 30 moves forward together with the piston body 50 and feeds the contents of the accommodating portion 24.

  The knock is released from this state.

  The spring member 44 disposed inside the screw body 28 pushes up the rotating body 36 to release the knock. At this time, the second cam surface 34 of the rotating body 36 is half-phased with the cam body 42 and the cam portion. Start moving backwards with a shift.

  When the knock release is further continued, as shown in FIG. 3D, the second cam surface 34 of the rotating body 36 comes into contact with the second fixed cam surface 40 of the cam body 42, and as shown in FIG. Further, the tooth 34a slope 34a1 of the second cam surface 34 of the rotating body 36 slides on the tooth 40a slope 40a1 of the second fixed cam surface 40 of the cam body 42 by the pushing force of the spring member 44, The wall portion 34a2 of the tooth 34a of the second cam surface 34 retreats while rotating to a position where the wall portion 40a2 of the tooth 40a of the second fixed cam surface 40 abuts. Also during this rotation, the screw rod 30 is rotated as described above to move forward with the piston body 50, and the contents are fed out.

  By repeating the above knocking operation, the axial knocking and releasing operations are converted into rotational force, and the contents can be delivered quantitatively by rotating the screw rod 30 and pushing out the piston body 50. It becomes.

  In addition, since the initial rotation depends on the strength of the rotational force depending on the pressing force, it is easy to deal with a case where a certain force or more is required for the initial rotation due to sticking of the piston body 50 or the like.

  Note that the knock-type feeding container of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

  In the embodiment, each component is preferably a resin molded product, and it is preferable that the shaft body is made of PP, the rotating body is POM, the cam body is ABS, the screw body is ABS, and the crown is made of PC.

  In the embodiment, the first cam surface 32 of the rotating body 36 and the first fixed cam surface 38 of the screw body 28, and the second cam surface 34 of the rotating body and the second fixed cam surface of the cam body 42 are used. Both of the 40 teeth formed a plurality of teeth at the same pitch, but the present invention is not limited to such a configuration. One of the first cam surface and the first fixed cam surface is formed with a plurality of first teeth having a slope inclined forward with respect to a predetermined rotation direction of the rotating body at the same pitch in the predetermined rotation direction. One of the cam surface and the second fixed cam surface is formed by forming a plurality of second teeth having inclined surfaces inclined rearward with respect to a predetermined rotation direction of the rotating body at the same pitch in the predetermined rotation direction. It is within the scope of the present invention that either one of the opposing cam surfaces is formed with a plurality of teeth, and the other is a tip-end circular body or roller body other than the cam surface that is easily guided to the cam surface.

(A), (b) is explanatory drawing of the knock type delivery container which concerns on embodiment of this invention, Comprising: The cross-sectional display of the whole knock type delivery container of a state before a crown is pressed, and the enlarged view of a mechanism part are shown. . (A), (b) shows the whole cross-sectional display of the state at the time of pressing the crown of the knock type delivery container of FIG. 1, and the enlarged view of a mechanism part. (A)-(e) is operation | movement explanatory drawing of the knock mechanism of the said knock type delivery container. (A), (b) is the perspective view and longitudinal cross-sectional view of a shaft main body. (A), (b), (c), (d) is the front perspective view of a screw body, a back perspective view, a longitudinal cross-sectional view, and an expanded sectional view. (A), (b) is the side view of a screw rod, and XX sectional drawing. (A), (b), (c) is the front perspective view, back perspective view, and longitudinal cross-sectional view of a piston body. (A), (b), (c), (d), (e) is the front perspective view of a rotary body, back perspective view, a side view, a longitudinal cross-sectional view, and a front view. (A), (b), (c), (d) is the front perspective view of a cam body, a back perspective view, a side view, and a longitudinal cross-sectional view. (A), (b), (c) is the front perspective view, side view, and longitudinal cross-sectional view of a crown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shaft body 10a Shaft body front end part 10b Fitting part 10c Rib 12 Cap crown 14 Joint 16 Pipe joint 18 Pipe 20 Lead shaft 22 Ear neck 24 Storage part 26 Cap 28 Screw body 28a Cylindrical part 28b of screw body front end Shaped portion 28c slit 28d fitting portion 28e groove portion 28f rib 30 screw rod 30a male screw 30b fitting portion 32 first cam surface 32a first cam surface tooth 32a1 first cam surface tooth slope 32a2 tooth wall Portion 34 second cam surface 34a second cam surface tooth 34a1 second cam surface tooth slope 34a2 second cam surface tooth wall 36 rotor 38 first fixed cam surface 38a first Teeth 38a1 of fixed cam surface Teeth slope 38a2 of first fixed cam surface Teeth wall portion 40 of first fixed cam surface Second fixed cam surface 40a Second fixed cam surface tooth 40a1 Second fixed cam Plane Tooth slope 42a of second fixed cam surface 42 Cam body 44 Spring member 46 Deformed cross-section hole 48 Screw body screw section 50 Piston body 50a Main body 50b Tubular section 50c Fitting section A Mechanism to convert force

Claims (5)

In a knock-type feeding container capable of feeding out the contents in the housing part by the user operating the crown provided at the rear end of the shaft body,
It has a mechanism that converts the pressing force of the crown by the user's operation into a rotational force, a screw body that is fixed to the shaft body, and a screw rod that is screwed to the screw body. The screw rod is rotated by the rotational force, and the screw rod is advanced through the screw body to feed out the contents,
The mechanism that converts the pressing force into the rotational force is disposed so that the crown can be rotated and the axial movement is restricted, and a first cam surface facing forward and a second cam surface facing backward are formed. A rotating body that is annular and is disposed on the shaft body so as to be rotatable and axially movable;
A first fixed cam surface and a second fixed cam surface are provided to face the first cam surface and the second cam surface, respectively, and are fixed to the shaft body in the axial direction and the rotational direction. ,
At least one of the first cam surface and the first fixed cam surface is formed by forming a plurality of first teeth having a slope inclined forward with respect to a predetermined rotation direction of the rotating body at the same pitch in the predetermined rotation direction. Yes,
At least one of the second cam surface and the second fixed cam surface is formed by forming a plurality of second teeth having inclined surfaces inclined rearward with respect to a predetermined rotation direction of the rotating body at the same pitch in the predetermined rotation direction. Yes,
With the pressing force, the first cam surface is guided along a slope inclined forward of the teeth in a state where the first cam surface of the rotating body is engaged with the first fixed cam surface. As a result, the rotating body moves forward and rotates in a predetermined rotation direction, while the second cam surface of the rotating body meshes with the second fixed cam surface by the release of the press. The mechanism portion is configured so that the rotating body moves backward and rotates in a predetermined rotation direction by being guided along a slope inclined backward.
A knock-type feeding container, wherein the screw rod is rotated by rotation of a rotating body.   In a state in which the first cam surface of the rotating body is engaged with the first fixed cam surface, the second cam surface on the rotating body side and the second fixed cam surface are In a state where the phase is shifted with respect to the teeth and the second cam surface on the rotating body side is engaged with the second fixed cam surface, the first cam surface on the rotating body side and the first cam surface are 2. The knock type dispensing container according to claim 1, wherein the one fixed cam surface is set to have a phase shifted with respect to one tooth of the cam in the rotation direction.   A spring member that biases the rotating body rearward so that the second cam surface of the rotating body is brought into contact with the second fixed cam surface in the engaged state in the released state; The knock type feeding container according to claim 1 or 2, wherein the knock type feeding container is provided.   The rotary body is provided with an odd-shaped cross-sectional hole such as an oval type, and a screw body having a screw portion made of a female screw and a first fixed cam surface is fixed to the shaft body, and has a cross-sectional shape that matches the odd-shaped cross-sectional hole of the rotary body A screw rod having a male screw formed on the outer periphery is screwed into the screw portion of the screw body, and the screw rod is rotated by the rotation of the rotating body in a state of passing through the deformed cross-sectional hole of the rotating body. The knock type feeding container according to claim 1, wherein the knock type feeding container is characterized in that In the knock-type container that feeds out the contents by pressing the crown provided at the rear end of the shaft body,
A screw body having a screw portion on the inner diameter at the front and a first fixed cam surface in the rear direction in the front portion, and having a rear portion formed hollow from the center portion is fixed in the shaft main body that accommodates the contents,
A hollow inside of the screw body is formed in an annular shape, a first cam surface that meshes with the first fixed cam surface is formed in the front portion, and a second cam surface is formed in the rear portion, and the inner diameter front portion A rotating member provided with a modified cross-sectional hole, a spring member that urges the rotating body backward with respect to the screw body between the rotating body and the screw body, and a second cam surface of the rotating body. A cam body provided with a second fixed cam surface and fixed to the rear portion of the screw body;
The rotating body is sandwiched from the front and rear by the screw body and the cam body, and the rotating body is biased toward the cam body by the spring member,
A screw rod having an outer diameter provided with a screw and having an irregular cross section is screwed into the screw portion of the screw body, and the screw rod and the rotary body are movable in the axial direction and rotated in the axial direction by the irregular cross sectional hole of the rotary body. A piston body that is slidable with the shaft body and moves integrally with the screw rod in the axial direction is fitted to the tip of the screw rod,
The crown is arranged at the rear of the rotating body in a state where the crown is rotatable and locked in the axial direction,
In a state in which the first cam surface of the rotating body is engaged with the first fixed cam surface, the second cam surface on the rotating body side and the second fixed cam surface are In a state where the phase is shifted with respect to the teeth and the second cam surface of the rotating body is engaged with the second fixed cam surface, the first cam surface on the rotating body side and the first cam surface are One knock cam surface is set in a relationship in which a phase is shifted with respect to one tooth of a cam in a rotation direction.

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