JP5882568B2 - Dispenser - Google Patents

Description

  The present invention relates to a discharger that is attached to a mouth of a container body and discharges contents in the container body.

  Conventionally, as this type of dispenser, for example, as shown in Patent Document 1 below, a mounting cap that is mounted on the mouth of a container body, and supported by being suspended by the mounting cap, is pushed down in an upward biased state. There is known a configuration including a pump mechanism having a stem that is erected, a pump head connected to the stem, and an operation lever for pushing down the stem. The pump head is provided with a communicating cylinder part fitted to the stem and a nozzle projecting from the upper end part of the communicating cylinder part. The mounting cap is provided with a rising cylinder portion erected from the top wall portion, and a bearing wall is erected at the upper end portion of the rising cylinder portion and a finger hanging lever is protruded. . The operation lever is an operation member that is operated by rotating around a horizontal axis, and one end portion of the operation lever is rotatably supported on the bearing wall, and an upper end surface of the pump head is provided at a central portion of the operation lever. An engaging portion is provided for engaging with.

  In the dispenser having the above-described configuration, when the operation lever is rotated to the finger-holding lever side with the finger placed on the operation lever and the finger-holding lever, the engaging portion of the operation lever presses the upper end surface of the pump head. The pump head is pushed down and the stem connected to the pump head is pushed down. As a result, the contents in the container main body are sent out from the upper end of the stem into the communicating cylinder, and are circulated through the communicating cylinder and discharged from the nozzle.

JP 2008-87808 A

  However, in the above-described conventional discharger, the pump head provided with the nozzle is pushed down as the operation lever rotates, so that the nozzle moves downward while discharging the contents during use. Thus, if the nozzle moves when discharging the contents, the position at which the contents are discharged may become unstable and difficult to use. Therefore, there is a demand for a discharger in which the nozzle does not move during discharge.

  The present invention has been made in consideration of the above-described conventional problems, and an object of the present invention is to provide a discharger that is easier to use because the position of the nozzle is fixed when the contents are discharged.

The dispenser according to the present invention includes a mounting cap mounted on the mouth portion of the container body, a cylinder supported by the mounting cap, and a pushable stem that is erected in an upward biased state. A discharger body including a pump mechanism for feeding the contents in the container body from the upper end of the stem by being pushed down relative to the cylinder; an operation member for pushing down the stem; and the stem A nozzle that discharges the contents sent from the upper end of the nozzle toward the front, and the nozzle is held by a support member supported by the discharger body, The nozzle and the upper end of the stem communicate with each other via a deformable bellows-like flexible tube, and the flexible tube extends from one end on the upper end side of the stem to the other end on the nozzle side. Together are formed gradually reduced diameter tapered shape as it goes, the inside of the support member, wherein one end portion is bent, and front and rear portion located on the other end side from this portion toward the nozzle It is characterized by being arranged in a state extending in the direction .

Due to these characteristics, when the operating member is operated and the stem is pushed down relative to the cylinder, the contents in the cylinder are sent out from the upper end of the stem to the flexible pipe and discharged from the nozzle through the flexible pipe. Is done.
Since the nozzle is held by the support member supported by the discharger body, the nozzle does not move even if the stem is pushed down, and the position of the nozzle is fixed at a fixed position. Further, since the flexible tube connecting the nozzle and the upper end of the stem can be deformed, when the stem is pushed down with the nozzle position fixed, the flexible tube is deformed following the pushing operation of the stem.

Further, the discharge device according to the present invention includes the flexible pipe, a cylindrical joint portion that is connected to one end portion of the flexible tube and fits to an upper end of the stem, and is connected to the other end portion of the flexible tube. It is preferable that the nozzle provided is integrally formed.
Thereby, compared with the structure which forms a nozzle and a flexible pipe | tube separately and connects them, the number of parts is reduced and the assembly man-hour at the time of manufacture is reduced.

Further, in the discharger according to the present invention, the flexible tube is a tube body in which a step extending in the tube circumferential direction is continuously formed in the tube axis direction on at least one of the inner circumferential surface and the outer circumferential surface. It is preferable.
Thereby, it becomes possible to form a flexible tube by injection molding. Therefore, it is particularly suitable when the flexible pipe, the joint part, and the nozzle are integrally formed as described above.

  According to the ejector according to the present invention, the position of the nozzle is fixed when the contents are ejected, so that the usability can be improved.

It is a longitudinal cross-sectional view of the discharge device for demonstrating embodiment of this invention. It is a longitudinal section of a flexible pipe, a joint pipe, and a nozzle for explaining an embodiment of the invention. It is a perspective view of the operation member for describing an embodiment of the invention. It is a longitudinal cross-sectional view of the discharge device for demonstrating embodiment of this invention.

Hereinafter, embodiments of a discharger according to the present invention will be described with reference to the drawings.
In the present embodiment, the front end side (left side in FIG. 1) of the nozzle unit 60 described later is referred to as “front”, and the opposite side (right side in FIG. 1) is referred to as “rear”. Further, the width direction of the head cover 7 (corresponding to a support member in the present invention) to be described later, that is, the horizontal direction orthogonal to the front-rear direction is referred to as “left-right direction”.
Moreover, the code | symbol O shown in FIG. 1 has shown the center axis line of the pump mechanism 3 mentioned later, and is only described as the axis line O below. The direction of the axis O is referred to as “axial direction”, the direction orthogonal to the axis O is referred to as “radial direction”, and the direction around the axis O is referred to as “circumferential direction”.
Also, in the axial direction, the head cover 7 side (upper side in FIG. 1) of the discharger 1 is “upper”, and the opposite side, that is, the pump mechanism 3 side (lower side in FIG. 1) of the discharger 1 is “lower”. And

  As shown in FIG. 1, the discharger 1 is a discharge pump for discharging the contents accommodated inside the container body (not shown). As a schematic configuration of the discharger 1, a discharger main body 4 including a mounting cap 2 and a pump mechanism 3, an operation member 5 for operating the pump mechanism 3, and contents delivered by the pump mechanism 3 are discharged to the outside. A discharge pipe member 6 and a head cover 7 supported by the discharger body 4 are provided.

  The mounting cap 2 is a cap body that is mounted to a mouth portion of a container main body (not shown), and is a cylindrical tube portion that extends along the axial direction with the axis O as the central axis. A female screw (not shown) is formed on the inner peripheral surface of the mounting cap 2, and the mounting cap 2 is screwed into the mouth of the container main body (not shown).

  The pump mechanism 3 is a known pump mechanism that sends out the contents in the container body. The pump mechanism 3 includes a cylinder 31 supported and suspended by the mounting cap 2, an auxiliary cap 32 fitted to the upper end portion of the cylinder 31, a dip tube 33 connected to the lower end portion of the cylinder 31, and an upper attachment. And a depressible stem 30 which is erected in a biased state.

  The auxiliary cap 32 is disposed above the mounting cap 2. The auxiliary cap 32 is provided with an inner cylinder portion (not shown) into which the stem 30 is loosely inserted. Further, on the outer peripheral surface of the auxiliary cap 32, an engaging convex portion 34 protruding outward in the radial direction is formed over the entire circumference. The cylinder 31 is a cylindrical portion that extends in the axial direction with the axis O as the central axis, and is disposed inside the mounting cap 2 and protrudes downward along the axial direction from the lower opening of the mounting cap 2. ing. A spring (not shown) that biases the stem 30 upward is accommodated inside the cylinder 31.

  The stem 30 is a tube member disposed inside the cylinder 31 and extends coaxially with the cylinder 31 with the axis O as a common axis. The stem 30 protrudes upward of the auxiliary cap 32 through an inner cylindrical portion (not shown) of the auxiliary cap 32. A fitting portion 35 to which the above-described discharge pipe member 6 is fitted is provided at the upper end portion of the stem 30 protruding above the auxiliary cap 32. The fitting portion 35 is reduced in diameter as compared with the intermediate portion 36 of the stem 30. A piston (not shown) that is slidably contacted with the inner peripheral surface of the cylinder 31 is provided at the lower end portion of the stem 30 disposed inside the cylinder 31.

  The head cover 7 is a cover member that accommodates the discharge pipe member 6, and is mounted on the discharger main body 4 including the mounting cap 2 and the pump mechanism 3 described above. More specifically, the lower end portion of the head cover 7 is formed in a cylindrical shape and is disposed above the mounting cap 2. On the inner peripheral surface of the lower end portion of the head cover 7, an engaging portion 70 protruding radially inward is formed in an annular shape over the entire circumference. The locking portion 70 is sandwiched between the ring portion 8 formed on the auxiliary cap 32 and the engaging convex portion 34.

Further, a protrusion 71 protruding forward is formed on the upper portion of the head cover 7, and a nozzle holding part 72 for holding a nozzle part 60 described later is formed on the protrusion 71. The nozzle holding portion 72 is formed with a recess 76 extending around a central axis (nozzle axis P) of the nozzle portion 60 described later. A guide wall portion 73 that extends in the front-rear direction and has a rear end curved downward is disposed at a position behind the nozzle holding portion 72 in the inner surface of the head cover 7. A shaft portion 74 that rotatably supports the operation member 5 is disposed at a position below the guide wall portion 73 on the inner surface of the head cover 7. The shaft portion 74 is a cylindrical shaft portion extending in the left-right direction. In addition, an elongated slit 75 extending in the vertical direction is formed in the wall portion on the rear side of the head cover 7.
The head cover 7 is a member formed by combining a pair of half members divided into left and right.

As shown in FIGS. 1 and 2, the discharge pipe member 6 is a pipe member that is connected to the upper end portion of the stem 30 and communicates with the inside of the stem 30. The discharge pipe member 6 includes a nozzle part 60 (corresponding to the nozzle in the present invention) for discharging the contents, and a deformable bellows-like flexible pipe part 61 (corresponding to the flexible pipe in the present invention). , And a joint part 62 fitted to the fitting part 35 of the stem 30. The joint portion 62 described above is connected to one end portion of the flexible tube portion 61, and the nozzle portion 60 is connected to the other end portion of the flexible tube portion 61. Further, the nozzle portion 60, the flexible tube portion 61, and the joint portion 62 are integrally formed, and are formed by, for example, an injection molding method.
A chain line L shown in FIG. 2 indicates the central axis of the discharge pipe member 6 and is hereinafter referred to as “tube axis L”. The direction along the tube axis L is referred to as “tube axis direction”, the direction perpendicular to the tube axis L is referred to as “tube diameter direction”, and the direction around the tube axis L is referred to as “tube circumferential direction”.

  The joint part 62 is a cylindrical tube part for jointing the discharge pipe member 6 to the stem 30, is connected to one end of the flexible pipe part 61, and extends with the pipe axis L as the central axis. . The joint portion 62 includes a lower cylindrical portion 63 that is fitted to the fitting portion 35 of the stem 30, an upper cylindrical portion 64 that is connected to the upper end of the lower cylindrical portion 63, a lower cylindrical portion 63 and an upper A flange-like stopper portion 65 that protrudes outward in the pipe diameter direction from the connecting portion of the cylindrical portion 64 and an engaging portion 66 that protrudes from the outer peripheral surface of the upper end portion of the upper cylindrical portion 64 are provided. A fitting portion 35 is fitted inside the lower cylinder portion 63. The upper cylinder part 64 is a cylinder part having a smaller diameter than the lower cylinder part 63, and is disposed above the lower cylinder part 63. The stopper portion 65 is a member that limits the amount by which the stem 30 is pushed down, and is locked to the upper surface of the auxiliary cap 32 when the joint portion 62 is lowered to a predetermined position. The engaging portion 66 is a blade portion that protrudes on both the left and right sides of the upper end portion of the upper cylindrical portion 64, and is curved downward in a longitudinal sectional view along the front-rear direction.

  The flexible pipe portion 61 is a tapered cylindrical portion that is gradually reduced in diameter from one end side (the joint portion 62 side) to the other end side (the nozzle portion 60 side), and communicates with the inside of the joint portion 62. . On the inner peripheral surface of the flexible pipe portion 61, a plurality of steps 67 extending in the pipe circumferential direction are formed continuously in the pipe axis direction. The step 67 is formed by a straight cylindrical inner peripheral surface extending along the tube axis L and an annular step surface perpendicular to the tube axis L. The step 67 may be formed by a tapered cylindrical inner peripheral surface inclined with respect to the tube axis L and an annular step surface perpendicular to the tube axis L, or the above-described step surface. May be an inclined surface inclined with respect to the vertical plane of the tube axis L. The flexible pipe 61 is disposed inside the head cover 7 with the end on the joint 62 side bent at a substantially right angle, and the portion on the nozzle 60 side of the bent portion in the front-rear direction. It is extended.

  The nozzle portion 60 is a cylindrical tube portion that discharges the contents toward the front, and is connected to the other end portion of the flexible tube portion 61 and extends along the front-rear direction. The nozzle portion 60 is held by a nozzle holding portion 72 of the head cover 7, and the position of the nozzle portion 60 is fixed by the head cover 7. More specifically, a flange portion 68 protruding in the nozzle radial direction (direction orthogonal to the nozzle axis P) is provided on the outer peripheral surface of the nozzle portion 60, and this flange portion 68 is formed on the recess 76 of the nozzle holding portion 72. It is fitted inside. Further, the tip of the nozzle portion 60 protrudes outside from the tip opening of the protrusion 71 of the head cover 7.

  As shown in FIGS. 1 and 3, the operation member 5 is an operation lever for pushing down the stem 30 and is attached to the head cover 7 so as to be rotatable around a horizontal axis. More specifically, the operation member 5 is a plate-like member that extends in the front-rear direction and is curved in a waveform in the front-rear direction. A front portion and an intermediate portion of the operation member 5 are disposed inside the head cover 7, and a rear portion of the operation member 5 protrudes from the slit 75 of the head cover 7 to the outside of the head cover 7.

  A shaft tube portion 50 extending in the left-right direction is provided at the front end portion of the operation member 5. The shaft tube portion 50 is a cylindrical tube portion having both ends opened, and the operation member 5 is pivotally supported by inserting the above-described shaft portion 74 inside the shaft tube portion 50. 5 is rotatable along a vertical plane extending in the front-rear direction. In addition, a rib 53 is projected from the central portion of the front end portion of the operation member 5 so as to extend between the shaft tube portion 50 and the plate-like portion.

  In addition, a rectangular-shaped opening 51 that is long in the front-rear direction is formed in an intermediate portion of the operation member 5. A flexible tube 61 is inserted inside the opening 51. Further, a pressing piece that presses the upper surface of the engaging portion 66 of the joint portion 62 in accordance with the downward rotation operation of the operating member 5 at both side portions in the width direction of the opening portion 51 in the intermediate portion of the operating member 5. 52 are respectively suspended. The pair of pressing pieces 52 and 52 are flat plate portions, and are opposed to each other in the left-right direction with the rexible tube portion 61 interposed therebetween. The tip edges (lower edge) of the pressing pieces 52 and 52 are formed in an arc shape, and the tips of the pressing pieces 52 and 52 are in contact with the upper surface of the engaging portion 66 of the joint portion 62.

  Next, the operation of the dispenser having the above configuration will be described.

  When using the dispenser 1 having the above-described configuration, as shown in FIG. 4, the rear portion (rear end portion) of the operation member 5 is pushed down and the operation member 5 extends around the shaft portion 74 extending in the left-right direction. Rotate. Thereby, the pressing piece 52 of the operation member 5 presses the upper surface of the engaging portion 66 of the joint portion 62, the joint portion 62 is pushed down, and the stem 30 connected to the joint portion 62 is pushed down. When the stem 30 is pushed down, the content in the cylinder 31 flows through the stem 30 and flows into the upper cylindrical portion 64 of the joint portion 62 from the upper end of the stem 30. Then, the contents that have flowed into the upper tube portion 64 flow through the flexible tube portion 61 and are discharged to the outside from the tip opening portion of the nozzle portion 60.

  Further, since the nozzle part 60 is held by the nozzle holding part 72 of the head cover 7, even if the joint part 62 (stem 30) is pushed down as described above, the nozzle part 60 does not move, and the position of the nozzle part 60 Is fixed at a fixed position. Moreover, since the flexible pipe part 61 which connects the nozzle part 60 and the joint part 62 (the upper end of the stem 30) is deformable, the joint part 62 (stem 30) is pushed down with the position of the nozzle part 60 fixed. Then, the flexible pipe portion 61 is deformed following the push-down operation of the joint portion 62 (stem 30) and becomes a substantially ¼ arc shape.

  According to the discharge device 1 described above, when the operation member 5 is operated to push down the stem 30 to discharge the content from the nozzle portion 60, the position of the nozzle portion 60 is fixed, so the content is discharged. The position is stable and usability can be improved.

  In addition, since the discharge device 1 includes the discharge tube member 6 in which the nozzle portion 60, the flexible tube portion 61, and the joint portion 62 are integrally formed, the nozzle portion 60 and the flexible tube portion 61 are separated from each other. The number of parts is reduced as compared with the configuration in which the body is formed and connected, and the number of assembly steps during manufacturing is reduced. Thereby, the assembly work at the time of manufacture of the discharge device 1 can be reduced, and mass productivity can be improved.

  Further, in the above-described dispenser 1, the flexible pipe portion 61 is formed in a tapered shape gradually reduced in diameter from the joint portion 62 side toward the nozzle portion 60 side, and extends in the pipe circumferential direction on the inner peripheral surface. Since the existing step 67 is a tube formed continuously in the tube axis direction, the discharge tube member 6 can be formed by injection molding. That is, among the molds for forming the discharge pipe member 6, as a mold for forming the outer surface of the discharge pipe member 6, a split mold that can be divided in the pipe radial direction is used, and the inner surface of the discharge pipe member 6 is used. As the mold for forming the rod, a rod-shaped core extending linearly is used. When the mold is removed at the time of molding the discharge pipe member 6 described above, the outer mold is removed by dividing it in the pipe radial direction, and the above-described core is disposed on the large diameter side of the flexible pipe section 61 ( It is removed by extracting from the joint part 62 side).

As mentioned above, although embodiment of the ejector which concerns on this invention was described, this invention is not limited to above-described embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the above-described embodiment, the nozzle portion 60 is oriented in the horizontal direction (forward), but the orientation of the nozzle in the present invention can be changed as appropriate, for example, the nozzle is oriented obliquely downward or obliquely upward. It may be.

  In the above-described embodiment, the head cover 7 that accommodates the flexible pipe portion 61 and the like is formed separately from the mounting cap 2 and the auxiliary cap 32 of the pump mechanism 3 and mounted on the upper portion of the discharger body 4. In the present invention, the head cover 7 may be formed integrally with the mounting cap 2 and the auxiliary cap 32. Further, in the present invention, the head cover 7 can be omitted. However, in this case, a support member supported by the discharger body 4 is separately provided, and the nozzle portion 60 is held by the support member.

Further, in the above-described embodiment, the operation member 5 that extends in the front-rear direction and whose rear end protrudes toward the rear side of the head cover 7 is provided. However, the present invention may be other operation members. For example, as the operation member, a push-down pressing head that engages with the engaging portion 66 of the joint portion 62 or an operation member that protrudes to the front side of the head cover 7 may be provided.
In the above-described embodiment, the engagement portion 66 that engages with the operation member 5 is provided in the joint portion 62. However, in the present invention, the engagement portion that engages with the operation member is provided in the stem. May be.

  In the above-described embodiment, the discharge pipe member 6 in which the nozzle part 60, the flexible pipe part 61, and the joint part 62 are integrally formed is provided. However, in the present invention, the nozzle and the flexible pipe are separately provided. It may be formed on the body.

  Further, in the above-described embodiment, the flexible pipe portion 61 is formed in a tapered shape that is gradually reduced in diameter from the joint portion 62 side toward the nozzle portion 60 side, and a plurality of steps 67 are continuously formed on the inner peripheral surface. However, the present invention may be a flexible tube having another shape. For example, it may be a tapered flexible pipe that is gradually expanded in diameter from the joint portion side toward the nozzle side. Further, steps may be formed on the outer peripheral surface instead of the inner peripheral surface of the flexible tube, and steps may be formed at positions corresponding to each other on the inner peripheral surface and the outer peripheral surface. Furthermore, the flexible tube in the present invention may be a bellows tube in which saddle-shaped folds are continuously formed in the tube axis direction.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

DESCRIPTION OF SYMBOLS 1 Discharger 2 Mounting cap 3 Pump mechanism 4 Discharger main body 5 Operation member 7 Head cover (support member)
30 Stem 31 Cylinder 60 Nozzle (nozzle)
61 Flexible pipe (flexible pipe)
62 Joint 67 Step

Claims (3)

A mounting cap mounted on the mouth of the container body; a cylinder supported by the mounting cap; and a depressible stem erected in an upward biased state, the stem being relative to the cylinder A pump mechanism that pumps out the contents in the container body from the upper end of the stem by being pushed down,
An operation member for pushing down the stem;
A nozzle for discharging the contents sent from the upper end of the stem toward the front ;
A dispenser provided with
The nozzle is held by a support member supported by the discharger body;
The nozzle and the upper end of the stem are communicated via a deformable bellows-like flexible tube,
The flexible tube is formed in a tapered shape having a diameter gradually reduced from one end portion on the upper end side of the stem toward the other end portion on the nozzle side, and the one end portion is bent inside the support member. And a portion located on the other end side from this portion is disposed in a state of extending in the front-rear direction toward the nozzle. The dispenser according to claim 1, wherein
The flexible tube, a tubular joint portion that is provided continuously with one end of the flexible tube and is fitted to the upper end of the stem, and the nozzle provided continuously with the other end of the flexible tube are integrally formed. A discharger characterized by being formed. The dispenser according to claim 1 or 2,
The discharge tube according to claim 1, wherein the flexible tube is a tube body in which a step extending in the tube circumferential direction is continuously formed in at least one of the inner circumferential surface and the outer circumferential surface in the tube axis direction.

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