JP2009261725A - Mechanical content-dispensing mechanism and mechanical dispenser provided with the content-dispensing mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To select an amount per knock operation in a content-dispensing mechanism operated by knock operation. <P>SOLUTION: In a mechanical content dispensing mechanism, a turnabl operation button 4 is provided with a first movement amount definition part (an outside cylindrical part 4a and a notch part 4c) and a receiving member (a back axis cylinder 21) of the operation button 4 is provided with a second movement amount definition part (an upper step part 21b) corresponding to the first movement amount definition part. When the operation button 4 is turned to a position at which the notch part 4c and the upper step part 21b correspond to each other, a seal member 24 moves two steps of a step part (25a) on the surface of a shaft 25 per knock operation. When it turns to a position at which the two parts do not correspond, the seal member 24 moves one step (25a) on the surface of the shaft 25 per knock operation. According to the amount of the movement of the seal member 24, a content in a storage space A is dispensed through a hole part 23b. After all the contents are dispensed, the shaft 25 is pressed back to the side of the operation button 4, a cartridge body 23 is replaced with a new one, and is reused. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a content discharge mechanism used in a knock-type dispenser, and in particular, can change the amount of the content (stock solution) discharged by a single knock operation, and the content storage portion of a container is a cartridge. It has become.

  In the present specification, as required, the lower side of the drawing, which is the contents discharge hole of the knock type dispenser described later, is referred to as `` front '', and the upper side of the drawing, which is the operation button, is referred to as `` rear ''. I write.

Conventionally, in a container storing contents such as emulsion or jelly-like liquid, a fixed amount of content is discharged by moving the plunger of the contents storage part by the knocking operation, and when the knocking operation is released, the plunger Has been proposed in which the knock operation unit returns to the initial position while being held at the position before the release. (See Patent Document 1).
JP-A-5-139467

  The above-mentioned fixed-quantity discharge type containers cannot change the amount of content discharged by a single knocking operation, and the contents cannot be easily replenished or replaced. In terms of convenience.

  Therefore, in the present invention, in the content discharge mechanism that discharges an amount of content corresponding to the movement stroke of the knock operation portion, the operation portion is provided in a rotatable manner, and the movement stroke corresponding to the rotation position is provided. The purpose is to select the amount of contents discharged by one knock operation in a different manner.

  Further, in the content discharge mechanism, a container front side portion (discharge hole side portion) in which a seal member for defining a content storage space is accommodated is replaced with a container rear side portion (knock operation) in which the drive element of the seal member is accommodated. The purpose is to simplify the replenishment / replacement operation of the contents by making the cartridge shape a separate unit from the part side portion).

The present invention solves the above problems by using the following knock-type content discharge mechanism.
(1) Taper-shaped surfaces for returning operation of the knock operation portion (for example, first upwardly tapered surfaces 5a and 5a ′ described later, second upwardly tapered surfaces 5c and 5c ′, first downwardly tapered surface 11a, 11a ′, second downwardly tapered surface 11c, 11c ′, upwardly tapered surface 25b) and a subsequent step portion for discharging contents (for example, first orthogonal step portions 5b, 5b ′, 11b described later) 11b ′, second orthogonal stepped portions 5d, 5d ′, 11d, 11d ′, steeply sloped stepped portions 25b) formed in a rod-like member (for example, shaft 5, which will be described later) in which a plurality of convex portions are formed in the axial direction of the outer peripheral surface. 25, a rod-shaped feeding member 11) and a cylindrical member (for example, a cylindrical feeding member 6, 26, which will be described later, an intermediate transmission member 12) having an engaging portion with respect to the stepped portion,
At the time of knocking operation, the rod-shaped member and the cylindrical member are connected between the engaging portion and the first stepped portion (for example, first orthogonal stepped portions 5b and 11b described later, first steeply stepped stepped portion 25b). While moving in the forward direction on the side of the discharge hole (for example, holes 2a and 23b described later) in the engaged state, the container is used to delimit a content storage space (for example, storage space A described later) leading to the discharge hole. The provided seal members (for example, seal members 3, 13, and 24 described later) are also interlocked in the forward direction,
When the knocking operation is released, the knocking operation part returns to the original position (for example, the position shown in FIGS. 2B and 3B) before the knocking operation by the action of an elastic body (for example, coil spring 8 described later), and At the time of the return, the cylindrical member or the rod-like member is left in the original position before the knocking operation is released due to the frictional force with the inner peripheral surface of the container, and the cylindrical member or the rod-like member By moving based on the guide action between the engaging surfaces, the engaging portion becomes the second stepped portion (for example, first orthogonal stepped portions 5b ′ and 11b ′ described later, second orthogonal stepped portion 5d). , 11d, a knock type content discharge mechanism that shifts to a corresponding position with the second steep slope step 25b),
The knock operation unit is
A first movement amount defining portion (for example, described later) is provided so as to be rotatable with respect to the container and sets the stroke in the forward direction of the operation portion to a different length depending on the rotation position. The outer cylindrical portion 4b and the cutout portion 4c),
An operation member receiving portion (for example, color rings 9, 14 to be described later) formed with a second movement amount defining portion (for example, upper stage portions 9b, 14b, 21b described later) corresponding to the first movement amount defining portion of the operation member. A rear barrel 21),
Make things.
(2) In (1) above,
The rod-shaped member is
Each of the convex portions is arranged in a jumping manner for each column in the axial direction of the outer peripheral surface, and the step portion (for example, first orthogonal step portions 5b, 5b ′, 11b described later) of any row concerned. , 11b ′, the second orthogonal stepped portions 5d, 11d) and the tapered surfaces (for example, second upwardly tapered surfaces 5c, 5c ′ described later, second downwardly tapered surfaces 11c, 11c described later). ', The first upper taper surface 5a', the first lower taper surface 11a ') are formed.
Make things.
(3) In (1) above,
The container is
A rear shaft cylinder (for example, a rear shaft cylinder 21 described later) on which the rod-shaped member (for example, a shaft 25 described later) and the cylindrical member (for example, a cylindrical feeding member 26 described later) are disposed;
A cartridge type in which the seal member (for example, a seal member 24 described later) is arranged, has the content storage space from the seal member to the discharge hole, and is used in a state of being attached to the rear shaft cylinder. A front shaft cylinder (for example, a front shaft cylinder 22 and a cartridge body 23 described later),
Make things.

  The present invention is directed to a knock-type content discharge mechanism having such a configuration and a knock-type dispenser including the content discharge mechanism.

  In the present invention, the knock operation portion of the content discharge mechanism is provided in a rotatable manner, and the movement stroke of the operation portion corresponding to the rotation position is different, so that one knock operation is performed. The amount of contents discharged can be selected.

  Further, the container front side portion (discharge hole side portion) in which the seal member defining the content storage space of the content discharge mechanism is accommodated is the container rear side portion (knock operation portion side) in which the drive element of the seal member is accommodated. Since the cartridge shape is a separate unit from the (part), it is possible to simplify the contents replenishment / exchange operation.

  The best mode for carrying out the present invention will be described with reference to FIGS.

here,
FIG. 1 shows an example in which a shaft in which convex portions (= an axially extending tapered surface + an orthogonal step portion following the axial direction) are formed in an axial direction is integrated with a seal member for defining a content storage space. The initial state of the large quantity mode of the knock type dispenser (type 1)
FIG. 2 shows the knock-type dispenser of FIG. 1 at the time of (a) knocking operation and (b) when the knocking operation is released,
FIG. 3 shows a case where the knock-type dispenser of FIG. 1 is set to the small amount mode by rotating the operation button.
FIG. 4 shows an enlarged state of the shaft of FIG.
FIG. 5 shows a knock-type dispenser in which a shaft having convex portions (= a downwardly extending taper surface in the axial direction + an orthogonal step portion following this) is integrally formed with a knock-type operation button. Indicates the initial state of (Type 2) large quantity mode,
FIG. 6 shows a knock-type dispenser in which the shaft cylinder portion on the content storage space side is formed into a cartridge.

  The constituent elements of the following reference numbers with alphabets (for example, the front end side cylindrical portion 1a) indicate that they are part of the constituent elements (for example, the shaft cylinder 1) of the numeral portions of the reference numbers in principle.

1 to 6,
1 is a cylinder (cylinder) in which various contents to be described later are stored in an internal space, and each component of the content discharge mechanism is stored.
1a is a front end side cylindrical portion that is formed in the lower opening of the shaft cylinder, an inner peripheral surface portion is fitted with a head 2 described later, and an outer peripheral surface portion is fitted with a cap 10 described later;
2 is a cylindrical head fitted to the inner peripheral surface of the front end side cylindrical portion 1a of the shaft cylinder 1,
2a is a hole for discharging contents formed in the front end portion of the head,
3 is a seal member that is arranged in the shaft cylinder 1 in a manner in close contact with the inner peripheral surface thereof, and sets a content storage space between the shaft cylinder and the head 2;
3a is a concave portion that is formed on the center upper end side of the seal member and fits with a front end side portion of the shaft 5 described later,
3b is an upper reverse skirt portion that is in close contact with the inner peripheral surface of the shaft tube 1,
3c is a lower skirt portion that is in close contact with the inner peripheral surface of the shaft tube 1,
4 is an operation button that can be knocked and rotated,
4a is formed in the center part of the ceiling surface of the operation button, and each upper end portion of a connecting member 7 (see FIG. 1, FIG. 2, FIG. 3, FIG. 6) to be described later and a bar-shaped feeding member 11 (see FIG. 5) to be described later. A cylindrical droop that fits,
4b is an outer cylindrical portion having a function of switching a moving stroke at the time of knocking operation of the operation button due to a difference in engagement state (combination) with an upper stage portion 9b of the coloring ring 9 which will be described later.
4c is a cutout portion formed in a part of the lower end side of the outer cylindrical portion in such a manner that the end face position retreats upward in the figure,
5 is fitted with the inner peripheral surface of the sheath-like portion of the seal member 3, and the outer peripheral surface includes a plurality of taper surfaces extending upward to the operation button 4 side and subsequent orthogonal step portions (in the axial direction). A shaft formed in the axial direction in a manner in which the convex portions fly away,
5a, 5a ′, etc. are components of the convex portion, and a pair of opposed first axial portions of the outer peripheral surface of the shaft (every other part when the outer peripheral surface of the shaft is divided into substantially equal parts in the circumferential direction) First area of each taper surface formed in each area),
5b, 5b ′ and the like are components of the convex portion, and the first orthogonal stepped portion that continues from the upper end of the first upwardly extending tapered surface,
5c, 5c ′, etc. are constituent elements of the convex portion, and are formed in the remaining pair of second axial portions of the outer peripheral surface of the shaft in a positional manner adjacent to the circumferential direction from the first orthogonal stepped portion. A second upwardly extending tapered surface,
5d, 5d ′ and the like are components of the convex portion, and the second orthogonal stepped portion that continues from the upper end of the second upwardly tapered surface,
6 is a cylindrical feeding member that drives the shaft 5 and the seal member 3 integral with the shaft 5 toward the head 2 (downward in the drawing) in response to the knocking operation of the operation button 4;
6a advances the shaft in a state where the front end portion is locked to the orthogonal step portions 5b, 5b ′, 5d, 5d ′, etc. of the shaft 5 at the time of knocking operation, and the inner peripheral surface portion of the shaft 5 A cylindrical taper portion that returns to the original position shown in FIGS. 2 (b) and 3 (b) while being guided by the upward spreading taper surfaces 5a, 5a ′, 5c, and 5c ′,
7 is a connecting member that fits together with the inner peripheral surface of the sheath portion of the operation button 4 and the inner peripheral surface of the upper opening portion of the cylindrical feeding member 6 to integrate them,
7a is a ring-shaped part formed in the lower part of the connecting member,
8 is a coil spring for urging the operation button 4 upward in the figure,
9 is fitted to the inner peripheral surface of the upper opening of the shaft cylinder 1 and receives the coil spring 8 at the bottom surface, delimits the upper limit position (original position) of the connecting member 7, A coloring that acts as a guide for knock operation and defines the stroke of the operation button movement during knock operation.
9a is an annular lower part formed on the inner peripheral surface of the coloring,
9b is an upper part formed on the inner peripheral surface of the coloring ring in a manner extending upward from a part of the lower part,
10 is a cap that is detachable by engaging with the outer peripheral surface of the front end side cylindrical portion 1a on the lower side of the shaft cylinder 1;
10a is a projecting portion formed at the center of the inner surface of the cap for closing the hole 2a of the head 2,
A is defined by the shaft cylinder 1, the head 2, and the seal member 3, and a storage space for storing contents whose volume decreases in accordance with the downward movement of the seal member in accordance with the knocking operation,
S is a cross-sectional area inside the shaft cylinder in a direction orthogonal to the axial direction of the shaft tube portion other than the front end side cylindrical portion 1a,
L1 is the movement stroke of the operation button 4 in the large quantity mode,
L2 (= L1 / 2) is the movement stroke of the operation button 4 in the small amount mode,
Respectively.

Here, the outer peripheral surface of the shaft 5 is clearly shown in FIG.
(11) The second upwardly tapered surface 5c, 5c ′, etc. are formed immediately next to the adjacent row (second axial direction portion) such as the first orthogonal stepped portions 5b, 5b ′,
(12) The first upwardly tapered surface 5a, 5a ′ is formed immediately next to the adjacent row (first axial direction portion) such as the second orthogonal stepped portions 5d, 5d ′,
(13) From the first and second orthogonal stepped portions to the starting area of the upwardly extending tapered surface immediately above it is a peripheral surface portion having the same diameter.

  That is, a pair of upwardly extending taper surfaces (for example, 5c and 5c) in adjacent rows (for example, the second axial portion) are formed between a pair of opposing orthogonal step portions (for example, 5b and 5b). The portion directly above each orthogonal step is the same diameter area as in (13) above.

  With the release of the knocking operation, the cylindrical feeding member 6 is retracted upward along the shaft 5 from, for example, the first orthogonal stepped portion 5b, which is the engagement partner, by the elastic return action of the coil spring 8. At this time, the cylindrical taper portion 6a of the cylindrical feeding member 6 spreads outward in a form that resists its own elasticity while being guided by the second upwardly expanding tapered surface 5c of the shaft 5.

  And since the part (= outer peripheral surface part of the same diameter) between this pair of upwardly expanding tapered surfaces 5c, 5c is recessed from the tapered surface, the extent of outward expansion of the cylindrical tapered portion 6a is as follows: The taper surface may be smaller than the case where the tapered surface is formed in the entire circumferential direction of the shaft 5.

  Each pitch of the first step portion and the second step portion adjacent to each other in the axial direction (for example, step portions 5b and 5b ′ and step portions 5d and 5d ′) is substantially L1, and the first step portion and Each pitch in the axial direction adjacent to the entire second step portion (for example, step portions 5b and 5d, step portions 5d and 5b ′ and step portions 5b ′ and 5d ′) is approximately L2. That is, step portions are formed on the outer peripheral surface of the shaft 5 at intervals of approximately L2 (L1 / 2) in the axial direction.

  FIG. 1 shows an initial state of the large quantity mode in which the movement stroke of the operation button 4 is set to “large”.

At this time,
(21) The storage space A is filled with, for example, latex or jelly-like contents,
(22) The integral part of the seal member 3 and the shaft 5 is the upper limit position, that is, the upper surface portion of the ring-shaped portion 7a (connecting member 7) is in contact with the bottom lower surface of the color ring 9, and the lower surface portion of the connecting member 7 At the upper limit position where the upper end surface of the shaft 5 is in contact with
(23) The lower end portion of the cylindrical taper portion 6a is engaged with the lowermost first orthogonal step portion 5b of the shaft 4,
(24) The notch 4c of the operation button 4 is located above the entire upper portion 9b of the collar ring 9 in the circumferential direction, that is, when the operation button 4 is pushed down, the upper portion of the color ring 9 is in the notch 4c. The entire circumferential direction of the portion 9b can enter,
It is like that.

  In the initial state of FIG. 1, it is optional whether the upper end surface of the shaft 5 is set so as to contact the lower surface portion of the connecting member 7. You may set so that the said upper end surface and the said lower surface part may space apart.

When the knocking dispenser cap 10 of FIG. 1 is removed from the head 2 and the operation button 4 is knocked, as shown in FIG.
(31) The connecting member 7 and the cylindrical feeding member 6 integral with the operation button 4 move downward,
(32) The shaft 5 and the seal member 3 integral with the shaft 5 by the pressing action of the lower end portion (engagement portion with the first orthogonal step portion 5b) of the cylindrical tapered portion 6a accompanying the movement of the cylindrical feeding member 6 Is driven downward,
(33) As the seal member 3 moves downward, the contents of the storage space A are discharged from the hole 2 a of the head 2.

  The movement stroke of the operation button 4 (= the movement stroke of the seal member 3) during the knocking operation is a predetermined length L1 from the initial position of the operation button 4 until the notch 4c comes into contact with the upper stage portion 9b of the coloring ring 9. .

  Therefore, a fixed amount of content corresponding to “L1 × S” is taken out from the hole 2 a of the head 2 by a single knocking operation.

  FIG. 2 (b) shows a state where the knocking operation of FIG. 2 (a) is released.

  That is, as the knocking operation of FIG. 2 (a) is released, the integrated body of the operation button 4, the connecting member 7 and the cylindrical feeding member 6 moves upward by the elastic force of the coil spring 8, and FIG. Return to the original position in (b).

  On the other hand, the integrated member of the seal member 3 and the shaft 5 that has been moved downward by the length L1 by the previous knocking operation is the reverse skirt portion 3b and the skirt portion 3c of the seal member 3 and the inner peripheral surface of the shaft cylinder 1. Due to the sliding resistance (frictional force), it remains at the same position as in FIG.

In the process in which the feeding member 6 in FIG. 2 (a) returns to the original position in FIG. 2 (b),
The cylindrical taper portion 6 a is in a state where the shaft cylinder 1 is fixed to the shaft cylinder 1.
(41) First, the inner peripheral surface on the front end side of the cylindrical tapered portion is a second upward spread in the next row (second axial direction portion) of the first orthogonal stepped portion 5b which is an engagement partner before returning. While being guided by the taper surface 5c, it deforms in a manner that spreads somewhat against its own elastic force,
(42) Next, the tip side inner peripheral surface of the cylindrical tapered portion enters the second stepped portion 5d following the second upwardly expanding tapered surface 5c by its own elastic return action, and is adjacent to the first row (first In contact with the first upwardly tapered surface 5a 'of the axial direction portion of
(43) Next, as in the above (41), the inner peripheral surface on the tip side of the cylindrical taper portion is guided by the first upwardly tapered surface 5a ′, while somewhat resisting its own elastic force. Deformed in a spreading manner,
(44) Next, as in (42) above, the tip of the cylindrical taper portion is brought into contact with the first stepped portion 5b ′ following the first upwardly expanding tapered surface 5a ′ by its own elastic return action. The tip-side inner peripheral surface of the cylindrical taper portion is in contact with the second upwardly expanding taper surface 5c ′ of the adjacent row (second axial portion) of the first step portion.
(See FIG. 4).

  After the knocking operation is released, the cylindrical feeding member 6 elastically recovers the length of L1 as described above to move to the original position in FIG. 2 (b) and prepare for the next knocking operation.

  That is, every time the operation button 4 is moved forward by the length of L1 by the knocking operation, the shaft 5 and the seal member 3 integrated therewith are driven by the cylindrical feeding member 6, and the contents of the storage space A are " A predetermined amount of “L1 × S” is discharged from the hole 2a.

  FIG. 3 shows a small amount mode in which half of the discharge amount of FIG. 2 is output. (a) shows a state in which a small amount of content (half of FIG. 2) is discharged by rotating the operation button 4 in FIG. 1 by 180 degrees and then performing a knock operation, and (b) canceling the knock operation. It is the original state after.

  In the state where the operation button 4 in FIG. 1 is rotated by about 180 degrees, the lower end portion of the outer cylindrical portion 4 b of the operation button without the notch portion faces the upper stage portion 9 b of the coloring ring 9. In the case of FIG. 1, the cutout portion 4c of the operation button 4 faces the upper portion 9b.

  When the operation button 4 is rotated, the connecting member 7 and the cylindrical feeding member 6 that are strongly coupled to the operation button 4 also rotate together with the operation button. And the front end part of the cylindrical feeding member 6 (cylindrical taper part 6a), the front-end-side inner peripheral surface part, and the like are idled between the outer peripheral surface of the shaft 5 and so on.

  As described above, in the operation button 4 in FIG. 3A, the lower end portion of the outer cylindrical portion 4b without the notch is opposed to the upper portion 9b of the coloring ring 9, and the interval is L2 (≈L1 / 2). It has become. That is, the maximum movement stroke of the operation button 4 associated with the knock operation is L2.

  In accordance with the knocking operation of FIG. 3A, the seal member 3 moves downward by L2, and the amount of contents of approximately “L2 × S” is discharged from the hole 2a of the head 2.

  When the knocking operation in FIG. 3 (a) is released, the integrated body of the operation button 4, the connecting member 7 and the cylindrical feeding member 6 has the cylindrical tapered portion 6a as the outer periphery of the shaft 5 as in the case of FIG. While being guided by the surface, it moves backward by L2 and returns to the original position in FIG.

  Further, the integrated member of the seal member 3 and the shaft 5 is subjected to a sliding resistance (frictional force) between the reverse skirt portion 3b and the skirt portion 3c of the seal member and the inner peripheral surface of the shaft tube 1 after the knock operation. It remains at substantially the same position as in FIG.

  That is, in the case of the small amount mode shown in FIG.

  As the operation button 4 and the cylindrical feeding member 6 are returned to the original positions when the knock operation is released, the engagement target of the cylindrical taper portion 6a is L2 immediately above the adjacent row from the orthogonal step portion at the time of the knock operation. For example, the first orthogonal step portion 5b is shifted to the second orthogonal step portion 5d (see FIG. 4).

  The knock-type dispenser of FIG. 5 has two components, ie, an operation button and a rod-shaped supply member, for the operation button side.

Reference numbers newly used in FIG. 5 are 11 to 14, and
11 is a rod-like feeding member that is fitted to the hanging portion 4a of the operation button 4 and has a protruding portion formed of a downwardly extending tapered portion and a stepped portion that follows in the axial direction of the outer peripheral surface.
11a, 11a ′ and the like are constituent elements of the convex portion, and the first axial portion of the outer surface of the rod-like feeding member (the one in the case where the outer surface of the rod-like feeding member is substantially divided into four in the circumferential direction) A first downwardly extending taper surface formed in each of the other area portions),
11b, 11b ′ and the like are constituent elements of the convex portion, and the first orthogonal stepped portion that continues from the lower end of the first downwardly tapered surface,
11c, 11c ′ and the like are constituent elements of the convex portion, and are adjacent to the pair of remaining second axial portions on the outer peripheral surface of the rod-shaped feeding member from the first orthogonal step portion in the circumferential direction. A second downwardly extending tapered surface formed in a position manner;
11d, 11d ′ and the like are components of the convex portion, and the second orthogonal step portion continuing from the lower end of the second downwardly tapered surface,
12 is a cylindrical intermediate transmission member that is driven downward by a push-down action of a rod-like feeding member 11 (steps 11b, 11d, etc.) when the operation button 4 is knocked.
12a is a cylindrical reverse taper portion whose rear end portion engages with the step portions 11b and 11d of the rod-like feeding member 11 during the knocking operation,
13 is a seal member that is disposed in the shaft cylinder 1 in close contact with the inner peripheral surface thereof, and sets a content storage space between the shaft cylinder and the head 2;
13a is an annular groove-like portion that is fitted to the inner peripheral surface of the lower end side of the intermediate transmission member 12 and receives the lower end portion thereof,
13b is a sheath-like part that is formed in the center of the seal member and accommodates the lower end side portion of the rod-like feeding member 11 at the initial stage of use where the contents of the storage space A are still sufficiently retained,
13c is an upper reverse skirt portion that is in close contact with the inner peripheral surface of the shaft tube 1,
13d is a lower skirt portion that is in close contact with the inner peripheral surface of the shaft tube 1,
14 is fitted to the inner peripheral surface of the upper opening of the shaft cylinder 1 and receives the coil spring 8 at the bottom surface, delimits the upper limit position (original position) of the rod-like feeding member 11, and rotates the operation button 4. Coloring that acts as a guide for knock operation and defines the stroke of the operation button movement during knock operation,
14a is an annular lower portion formed on the inner peripheral surface of the coloring,
14b is an upper stage portion formed on the inner peripheral surface of the coloring ring in a manner extending upward from a part of the lower stage portion;
14c is an annular hanging portion that defines the upper limit position of the intermediate transmission member 12 (position at the sales stage of the knock-type dispenser, etc.),
Respectively. The portions directly below the first orthogonal step portion and the second orthogonal step portion are composed of outer peripheral surfaces having the same diameter.

  In the case of the knock-type dispenser of FIG. 5, the rod-like feeding member 11 is fitted to the central tubular hanging portion 4a of the operation button 4, and the tubular intermediate transmission member 12 and the sheath-like sealing member integrally therewith are surrounded by the rod-like feeding member 11 13 is provided.

  When the operation button 4 is knocked, the operation button and the rod-shaped feeding member 11 are moved downward by L in the illustrated large quantity mode.

  Along with the movement of the rod-shaped feeding member 11, the orthogonal step portion 11b drives the cylindrical reverse taper portion 12a of the intermediate transmission member 12 downward, and the seal member 13 also moves toward the head 2 by approximately L1. Then, approximately “L1 × S” of the content corresponding to the amount of movement is discharged from the hole 2a of the head.

  When the knocking operation of the operation button 4 is released, the operation button moves upward by the action of the coil spring 8 and returns to its original position.

At this time, as in the case of the knock-type dispenser of FIGS.
(51) The integrated body of the intermediate transmission member 12 and the seal member 13 is moved to the position moved by L after the knocking operation, due to the sliding resistance (friction action) of the reverse skirt portion 13c and the skirt portion 13d with respect to the inner peripheral surface of the shaft cylinder. Stay,
(52) The intermediate transmission member 12 has its cylindrical inverted taper portion 12a abutted against the first downwardly expanding taper portion 11a of the returning rod-like feeding member 11, and spreads outward in a form that resists its own elasticity.
(53) The upper end portion of the cylindrical reverse taper portion 12a faces or abuts the step portion 11b ′ directly below at a position separated by L in the same row as the stepped portion 11b which was the engaging partner at the time of the previous knocking operation.

  Further, when the knock button is operated after the operation button 4 in the state of FIG. 5 is rotated by approximately 180 degrees, the knock dispenser operates in a small amount mode similar to FIG.

That is, by rotating only the operation button 4 approximately 180 degrees in the unused initial state of FIG.
(61) The unitary body of the operation button 4 and the rod-shaped feeding member 11 moves downward by a distance L2,
(62) With this movement, the cylindrical reverse taper portion 12a of the intermediate transmission member 12 is driven downward by the first step portion 11b of the rod-like feeding member 11,
(63) With this drive, the seal member 13 also moves downward by a distance L2,
(64) The content of “L2 × S” corresponding to this movement is discharged from the storage space A through the hole 2a.

  When the knocking operation is released, the operation button 4 and the rod-like feeding member 11 are returned to the original positions by the action of the coil spring 14 as in the case of the large quantity mode of FIG. Note that the intermediate transmission member 12 and the seal member 13 remain held at the positions after the previous knocking operation as described above.

  After the return of the rod-like feeding member 11 to the original position, the upper end portion of the intermediate transmission member 12 (cylindrical reverse taper portion 12a) faces and contacts the second orthogonal step portion 11d of the rod-like feeding member. At the time of the knocking operation, the orthogonal step portion becomes a driving source step portion to the cylindrical reverse taper portion 12a. The second orthogonal step portion 11d is an orthogonal step portion formed at a position immediately below the adjacent row of the drive source orthogonal step portion 11b.

  The knock type dispenser of FIG. 6 is a cartridge-shaped portion of the storage space A for storing contents composed of the lower portion of the shaft tube, the seal member, and the head of FIG.

Reference numbers newly used in FIG. 6 are 21 to 26,
21 is a rear shaft cylinder in which the upper portion of the shaft cylinder 1 and the color ring 9 are integrally formed,
21a is an annular lower step portion (= lower step portion 9a) formed on the inner peripheral surface of the upper end side of the rear barrel.
21b is an upper part (= upper part 9b) formed on the inner peripheral surface of the coloring ring in a manner extending upward from a part of the lower part.
22 is a front shaft cylinder that corresponds to the lower portion of the shaft cylinder 1 and that is detachably fitted to the rear shaft cylinder 21 (undercut, screw);
22a is a lower end cylindrical portion that is formed in the lower opening of the front barrel in a small diameter manner and engages with a later-described cartridge main body 23 at the inner peripheral surface portion and with the cap 10 at the outer peripheral surface portion;
22b is an inner step formed at the beginning of the lower cylindrical portion,
22c is an outer step portion that is formed at the beginning of the lower end cylindrical portion and holds the opening-side annular end of the cap 10,
23 is a cylindrical cartridge body in which the upper large-diameter portion is held between the lower end portion of the rear barrel 21 and the inner step portion 22b of the front barrel 22.
23a is an outer peripheral surface step portion held by the inner step portion 22b of the front barrel 22,
23b is a hole for discharging contents formed in the lower end portion of the cartridge body,
24 is a seal member (≈ seal member 3) that is disposed in the cartridge main body 23 so as to be in close contact with the inner peripheral surface thereof, and sets a content storage space with the cartridge main body.
24a is an opening for fitting a shaft comprising a tapered inlet portion;
24b is an upper reverse skirt portion that is in close contact with the inner peripheral surface of the cartridge body 23;
24c is a lower skirt portion that is in close contact with the inner peripheral surface of the cartridge body 23;
25 is detachably fitted to the inner peripheral surface of the opening 24a of the seal member 24, and has a steeply sloped stepped portion extending downward toward the operation button 4 in the axial direction of the outer peripheral surface and the upper portion following this. A shaft formed with a spreading taper surface sequentially,
25a is a downwardly spread and annular steep stepped portion formed in the axial direction of the outer peripheral surface of the shaft,
25b is an annular upper spreading taper surface formed in the outer peripheral surface axial direction in a mode following the steeply stepped step portion,
25c is an annular collar portion formed at the upper end portion of the shaft to prevent the shaft from coming off when the cartridge is replaced;
26 is fitted with the connecting member 7, and a cylindrical feeding member (≈cylindrical feeding member 6) for driving the shaft 25 and the seal member 24 integral with the shaft 25 toward the head 2 in accordance with the knocking operation.
The lower end portion 26a is formed as a slope corresponding to the steep slope-like step portion 25a of the shaft 25, and when the knocking operation is performed, the slope presses the steep slope-like step portion to drive downward, and after releasing the knocking operation, the coil spring 8 A cylindrical taper portion (≈cylinder taper portion 6a) that retreats upward while being guided by the taper surface 25b spreading upward of the shaft 25 by the elastic return action of
Respectively.

  The operation of discharging the contents in each of the large quantity mode and the small quantity mode of the cartridge type knock dispenser of FIG. 6 is the same as that of FIGS.

  Note that the setting pitch of the steep step 25a is L2, and is set to the movement stroke of the operation button 4 in the small amount mode. For this reason, the cylindrical feeding member 26 in the large quantity mode is retracted to the steep slope-like step portion that is two positions above the engagement partner (steep slope-like step portion) at the time of the knock operation when the knock operation is released.

  Here, the shaft 25 is provided with the steeply stepped step portion 25a (instead of the orthogonal step portions 5b, 5d etc. of the shape orthogonal to the axial direction of the shaft 5 used in FIGS. 1 to 4). This is because when the shaft is replaced, the shaft protruding from the cylindrical tapered portion 26a by the previous use is returned to the cylindrical feeding member 26 and set to the original position in FIG.

  When replacing a used cartridge, first, the front barrel 22 is removed from the rear barrel 21 in the illustrated downward direction. That is, the fitting state between the front barrel 22 and the rear barrel 21 is released, and the front barrel is removed from the rear barrel.

  Here, the degree of contact between the inner peripheral surface of the front barrel 22 and the outer peripheral surface of the cartridge main body 23 is optional whether or not the cartridge main body is also removed when the front barrel is removed. .

  In any case, if the front barrel 22, the cartridge body 23 and the seal member 24 are removed from the rear barrel 21 and the shaft 25, and the used cartridge body 23 and seal member 24 and the front barrel 22 are separated from each other. Good.

  At the stage where the cartridge needs to be replaced, the seal member 24 moves to the substantially lower limit position, and the annular flange 25c on the upper side of the shaft 25 is located on the inner peripheral surface portion of the cylindrical taper portion 26a of the cylindrical feeding member 26. Close to the locked state. That is, the shaft 25 cannot move further downward than the locking position.

  Therefore, when the seal member 24 is pulled downward when the cartridge is replaced, the fitted state between the seal member and the shaft 25 is released.

  A new cartridge (= cartridge body 23 + contents + seal member 24) is loaded into the front barrel 22 in the single product state from the opening on the upper side in the drawing, and the front barrel unit after loading is rear shaft. By attaching to the cylinder 21, the cartridge replacement operation is completed.

  The shaft 25 that protrudes to the maximum extent from the lower end of the cylindrical feeding member 25 at the stage of cartridge replacement is used when the front shaft cylinder unit is attached to the rear shaft cylinder 21 when the seal member 24 (opening 24a) is attached. It is guided by the taper surface and surely enters the opening, moves toward the ceiling surface portion of the connecting member 7, and is finally set to the initial state shown in the figure.

  A new cartridge (= cartridge main body 23 + contents + seal member 24) before use is attached with a cartridge cap (not shown) on the outer surface step portion 23a of the cartridge main body 23, and a hole is formed in the convex portion on the top surface of the cap. 23b is blocked. Of course, the cap is removed when the cartridge is attached to the front barrel 22.

  Each component other than the coil spring described above is made of synthetic resin such as polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate. The coil spring is made of metal or synthetic resin.

In addition, in the operation process of assembling and filling the contents of the knock type dispenser of FIGS.
(71) Attach the head 2 to the barrel 1
(72) In the internal space region, from the rear end side opening of the shaft cylinder, a unit comprising the seal member 3, the shaft 5, the cylindrical feeding member 6, and the connecting member 7 in the case of FIGS. 5, the unit composed of the seal member 13, the intermediate transmission member 12, and the rod-like feeding member 11 is loaded so that the seal member enters the head 2.
(72) After this loading, the color rings 4 and 14 are attached to the shaft tube 1,
(73) The contents are filled from the hole 2a of the head 2 in this attached state.
The procedure such as can be taken.

  According to this, since the semi-finished product in which each unit part of (72) is confined inside the shaft cylinder is transferred to the filling process, each member inside the shaft cylinder may go out. Therefore, the efficiency of the transfer work can be improved.

  As the contents are filled from the hole 2a, the unit such as the seal member moves upward. At this time, the air entering the space above the seal members 3 and 13 (the space in the shaft cylinder) flows out from the central holes of the collars 4 and 14 to the outside.

  In the final stage of filling the contents, the shaft 5 and the rod-shaped feeding member 11 are moved to the initial positions in FIGS. Thereafter, the operation button 4 and the coil spring 8 are attached to the connecting member 7, the coloring ring 9 (see FIG. 1), the rod-like feeding member 11 and the coloring ring 14 (see FIG. 5), and the final product is obtained.

  Needless to say, the present invention is not limited to the contents of the knock dispenser according to FIGS.

For example,
(81) Each of the upwardly-spreading tapered surface, the downwardly-spanning tapered surface, and the orthogonal stepped portions in FIGS. 1 to 5 is continuously provided in the circumferential direction of each outer peripheral surface of the shaft 5 and the rod-shaped feeding member 11, that is, the shaft of FIG. In the same manner as in the case of the above, it is formed continuously, and the axial interval of the orthogonal step at that time is set to at least the minimum movement stroke of the operation button 4 (L2 in the case of illustration),
(82) The steeply sloped stepped portion of FIG. 6 is provided in a shifted form for each column in the axial direction of the outer peripheral surface of the shaft 25 as in the case of FIGS.
(83) The axial intervals of the orthogonal stepped portions of FIGS. 1 to 5 and the steeply sloped stepped portion of FIG. 6 are made to correspond to 1 / integer of the moving stroke of the operation button 4.
(84) Instead of the cutout portion 4c of the operation button 4, a downward convex portion is formed, and the color ring 9, 14 or the upper portion 9b, 14b, 21b of the rear barrel 21 is replaced with the convex portion. Forming a corresponding concave part,
(85) Cartridge front side (content storage space side) of FIGS. 1 to 5 is made into a cartridge similar to that of FIG.
(86) A value in which the pressure of the contents from the storage space A is set in advance in the holes 2a and 23b so that the storage space A does not leak even when a low viscosity liquid is stored in the storage space A. Provide a valve (for example, a rubber member provided with a notch for passage of contents in the center) that is opened when exceeded.
You may do it.

  Applications of the present invention include cosmetics, cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatment agents, hair dyes, hair restorers, shaving foams, foods, and droplets (Vitamins, etc.), pharmaceuticals, quasi drugs, paints, gardening agents, repellents (insecticides), cleaners, deodorants, laundry glue, urethane foam, fire extinguishers, adhesives, lubricants, etc. is there.

  The contents stored in the storage space A can be in various forms such as liquid, cream, gel, etc. Examples of the ingredients blended in the contents include powdered substances, oil components, alcohols , Surfactants, polymer compounds, active ingredients according to each application, water, and the like.

  As the powder, metal salt powder, inorganic powder, resin powder, or the like is used. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose, and a mixture thereof are used.

  As the oil component, silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and the like are used.

  Examples of the alcohol include monovalent lower alcohols such as ethanol, monovalent higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.

  Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryldimethylaminoacetic acid betaine, and cations such as alkyltrimethylammonium chloride. A surfactant is used.

  As the polymer compound, methyl cellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, carboxyvinyl polymer, or the like is used.

  Active ingredients according to each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, antibacterial agents such as sodium benzoate and cresol, insect repellents such as Hillesroid and diethyltoluamide, antiperspirants such as zinc oxide, Coolants such as camphor and menthol, anti-asthma drugs such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, dihydrogen phosphate Use a fire extinguishing agent such as ammonium or sodium bicarbonate.

  Furthermore, other than the above-mentioned contents, suspending agents, ultraviolet absorbers, emulsifiers, humectants, antioxidants, sequestering agents and the like can also be used.

Knock-type dispenser (type 1) in which a shaft having convex portions in the axial direction of the outer peripheral surface (= upwardly tapered surface in the axial direction + orthogonal stepped portion) is integrated with a seal member for content storage space definition It is explanatory drawing which shows the initial state of large quantity mode. It is explanatory drawing which shows the time of knock operation of the knock type dispenser of FIG. 1, and the time of knock operation cancellation | release. (a) shows the time of knocking operation, and (b) shows the time of releasing the knocking operation. It is explanatory drawing which shows the time of knocking operation at the time of knocking operation cancellation | release at the time of setting the small quantity mode by rotation operation of the operation button of the knock type dispenser of FIG. (a) shows the time of knocking operation, and (b) shows the time of releasing the knocking operation. It is explanatory drawing which shows the state which expanded the shaft of FIG. Large quantity mode of knock type dispenser (type 2) that integrates a shaft with a convex part (= axially downward taper surface + orthogonal step part) in the axial direction of the outer peripheral surface integrated with a knock type operation button It is explanatory drawing which shows the initial state of. It is explanatory drawing which shows the knock type dispenser which made the axial cylinder part by the side of the content storage space into a cartridge.

Explanation of symbols

1: Shaft cylinder (cylinder)
DESCRIPTION OF SYMBOLS 1a: Front end side cylindrical part 2: Cylindrical head 2a: Hole part 3 for discharging contents: Seal member 3a: Concave part 3b: Reverse skirt part 3c: Skirt part 4: Operation button 4a: Cylindrical hanging part 4b: Outer cylindrical portion 4c: Notch portion 5: Shafts 5a, 5a ′: First upwardly expanding tapered surface 5b, 5b ′: First orthogonal stepped portion 5c, 5c ′: Second upwardly expanding tapered surface 5d, 5d ': second orthogonal step portion 6: cylindrical feeding member 6a: cylindrical taper portion 7: connecting member 7a: ring-shaped portion 8: coil spring 9: coloring 9a: annular lower step portion 9b: upper step portion 10 : Cap 10a: Protruding part A: Storage space S for storing contents S: Inner cross-sectional area of shaft barrel,
L1: Operation button movement stroke in the large quantity mode L2: Operation button movement stroke in the small quantity mode

(The following reference numbers 11 to 14 are used only in FIG. 5)
11: Rod-like feeding members 11a, 11a ′: First downwardly expanding tapered surfaces 11b, 11b ′: First orthogonal stepped portions 11c, 11c ′: Second downwardly extending tapered surfaces 11d, 11d ′: Second orthogonally extending steps Part 12: Cylindrical intermediate transmission member 12a: Cylindrical reverse taper part 13: Seal member 13a: Ring groove part 13b: Sheath part 13c: Reverse skirt part 13d: Skirt part 14: Color ring 14a: Lower annular part 14b: upper part 14c: annular hanging part

(The following reference numbers 21 to 26 are used only in FIG. 6)
21: Rear shaft tube 21a: Lower step portion 21b: Upper step portion 22: Front shaft tube 22a: Lower end side tubular portion 22b: Inner step portion 22c: Outer step portion 23: Tubular cartridge body 23a: Outer peripheral surface step portion 23b: Hole 24 for discharging contents: Seal member 24a: Opening portion 24b for shaft fitting: Reverse skirt portion 24c: Skirt portion 25: Shaft 25a: An annular steeply inclined step portion 25b: An annular upwardly expanding taper surface 25c: Annular ２６ part 26: cylindrical feeding member 26a: cylindrical tapered part

Claims (4)

A rod-shaped member in which a plurality of convex portions including a tapered surface for knocking operation returning operation and a step portion for contents discharge operation following this are formed in the outer peripheral surface axial direction, and an engaging portion for the step portion By cooperating with the cylindrical member provided,
At the time of knocking operation, the rod-shaped member and the cylindrical member move in the forward direction on the discharge hole side in an engaged state between the engagement portion and the first step portion, and the contents leading to the discharge hole Similarly, the seal member provided inside the container for defining the storage space is interlocked in the forward direction,
When the knock operation is released, the knock operation portion returns to the original position before the knock operation by the action of the elastic body, and at the time of the return, the seal member is restored to the original state before the knock operation is released by the frictional force with the inner peripheral surface of the container. The cylindrical member or the rod-shaped member is moved on the basis of the guiding action between the cylindrical member and the tapered surface, so that the engaging portion is in the second position. In the knock type contents discharge mechanism that shifts to the corresponding position with the step,
The knock operation unit is
A first movement amount defining portion is provided which is provided so as to be rotatable with respect to the container and for setting the stroke in the forward direction of the operation portion to a different length depending on the rotation position. Operating members,
An operation member receiving portion having a second movement amount defining portion corresponding to the first movement amount defining portion of the operation member;
A knock-type content discharge mechanism characterized by that. The rod-shaped member is
Each of the convex portions is arranged in a jumping manner for each column in the axial direction of the outer peripheral surface, and the tapered surface is formed in the circumferential adjacent portion of the step portion in any row. is there,
The knock type content discharge mechanism according to claim 1, wherein: The container is
A rear shaft cylinder in which the rod-shaped member and the cylindrical member are disposed;
A cartridge-type front shaft cylinder that is used in a state in which the seal member is arranged and has the content storage space from the seal member to the discharge hole and is attached to the rear shaft cylinder. Is,
The knock type content discharge mechanism according to claim 1, wherein: The content discharge mechanism according to any one of claims 1 to 3, comprising the content,
A knock-type dispenser characterized by that.

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