JP2012012079A - Pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump which enables the assembly position of a cylinder to a mounting cap to be determined by easy operation and has a simple structure.SOLUTION: The circumferential edge of a flange 20 is engaged with the circumferential wall 10 of a mounting cap so that the flange 20 and the top wall 11 of the mounting cap can be mutually and proximately moved and mutually turned while a clearance is made between them, and a slidable bend plate 21 on the surface of the other side projects at either predetermined position of the flange 20 or the top wall 11 of the mounting cap, and then an engagement recess 15 is recessed at the other predetermined position of either of the flange 20 or the top wall 11 of the mounting cap. The flange 20 fitted within a mounting cap A1 is turned against the mounting cap A1 and the bend plate 21 is engaged within the engagement recess 15, thereby permitting mutual positioning of the mounting cap A1 and the cylinder A2.

Description

  The present invention relates to a pump, and more particularly to a pump that can easily align a cylinder with a mounting cap.

  Fit the flange at the top of the cylinder in the mounting cap and fix them together, and fit the mounting cap to the mouth and neck of the container body, so that the cylinder is attached to the container body while hanging down in the container body, and In general, pumps that discharge liquid from the discharge port of the discharge head that constitutes the upper end of the operating member by vertically moving the operating member that can be moved up and down in an upwardly biased state from the inside of the cylinder are generally known. Yes. (For example, see Patent Document 1)

  The mounting cap and cylinder in the above pump are assembled by engaging the flange projecting from the upper outer periphery of the cylinder with the upper end of the peripheral wall of the mounting cap via an uneven engagement means, etc., and fitting the flange to the back of the mounting cap. Generally, the positional relationship in the circumferential direction between the mounting cap and the flange is not particularly considered.

JP 2005-132466 A

  In this type of pump, for example, the suction pipe can be efficiently discharged by opening the tip of the suction pipe at a predetermined position on the bottom of the container body and setting the outlet of the discharge head in the same direction. Since the operating member is mounted so as to be able to rotate in the horizontal direction with respect to the cylinder, in such a case, means for mounting the discharge head on the mounting cap in a predetermined direction, for example, the outer surface of the discharge head It is practiced to adopt a means such as fitting the protrusions protruding to the mounting caps so as to be able to move up and down in the recessed grooves vertically formed on the mounting caps, and to direct the discharge port in a predetermined direction with respect to the mounting caps. As for the cylinder, it has been necessary to fix the pipes one by one so that the opening end direction of the pipe is directed forward, or to attach the pipe with its direction specified later.

  Further, in this type of pump, it is common that a cylinder is provided with an outside air introduction hole for introducing outside air as the liquid in the container body decreases. In many cases, the position is not located at a specific location due to variations in the fitting of the cylinder to the mounting cap. When the outside air introduction hole is opened at the front part of the pump, for example, when the pump is tilted forward and the liquid is discharged, the outside air introduction hole is blocked with the liquid in the container body and smooth outside air introduction cannot be performed. In this type of pump, which generally discharges liquid when tilted forward, it is desirable that an outside air introduction hole be formed in the rear or side. If the position of the introduction hole is not specified, there is a possibility that the above-described inconvenience occurs.

  The present invention has been made in view of the above points, and proposes a pump that can specify the assembly position of a cylinder with respect to a mounting cap with a simple operation at the time of assembly of both, and has a simple structure.

  The first means is configured as follows. That is, a mounting cap A1 having a flange-like top wall 11 extending from the upper end of the peripheral wall 10 to be fitted to the outer periphery of the container body neck portion 100, and a flange protruding from the upper outer periphery at the inner peripheral upper end portion of the mounting cap peripheral wall 10 Cylinder A2 fitted with 20 peripheral edges, and a lower part in cylinder A2, and an operating member mounted with a discharge head 30 at the upper end protruding upward on mounting cap A1 so that it can move up and down in an upward biased state A3 is a pump that discharges the liquid in the container body B from the discharge port 31 of the discharge head 30 by the vertical movement of the actuating member A3, with a gap between the flange 20 and the mounting cap top wall 11. The peripheral edge of the flange 20 can be engaged with the mounting cap peripheral wall 10 so that the mutual movement and mutual rotation are possible, and either the flange 20 or the mounting cap top wall 11 can be slid on the other surface at a predetermined position. Bend plate 21 is projected and flange 20 or attached A locking recess 15 is provided at a predetermined position on the other side of the cap top wall 11, and the flange 20 fitted in the mounting cap A1 is rotated with respect to the mounting cap A1 so that the bend plate 21 is locked. By engaging inside, the mounting cap A1 and the cylinder A2 can be positioned relative to each other.

  The second means is configured as follows. That is, in the first means, the bend plate 21 is composed of a first bend plate 21a and a second bend plate 21b that protrude at a predetermined position on either the flange 20 or the mounting cap top wall 11. The first bend plate 21a and the second bend plate 21b are in the form of protrusions having first and second engagement surfaces 22a and 22b whose free ends are opposite to each other in the circumferential direction along the center circle. The concave portion 15 is composed of a first locking concave portion 15a and a second locking concave portion 15b which are recessed at a predetermined position on either the flange 20 or the mounting cap top wall 11, and the first locking concave portion 15a has a first engagement. A first locking surface 16a for locking the mating surface 22a is provided, and a second locking surface 16b for locking the second engaging surface 22b is provided in the second locking recess 15b.

  The third means was configured as follows. That is, in the second means, the first inclined surface 17a is provided on the opposite side in the circumferential direction to the first locking surface 16a in the first locking recess 15a, and the second engagement in the second locking recess 15b. A second inclined surface 17b is provided on each side facing the stop surface 16b in the circumferential direction.

  The fourth means is configured as follows. That is, in the first means, the bend plate 21 protrudes at a predetermined position on either the flange 20 or the mounting cap top wall 11, and one edge is connected along the center circle to the other edge. And both ends in the circumferential direction are configured as a first engagement surface 22a and a second engagement surface 22b, respectively, and the locking recess 15 is located at a predetermined position on either the flange 20 or the mounting cap top wall 11. While being recessed, both ends in the circumferential direction were configured as a first locking surface and a second locking surface.

  The fifth means is configured as follows. That is, in any one of the first to fourth means, the rotational torque corresponding rib 25 is provided on either the flange 20 or the mounting cap top wall 11 and the other is provided on the other. A fitting recess 18 in which the rotational torque corresponding rib 25 is fitted is provided so that the rotational torque corresponding rib 25 can be fitted in the engaging recess 18 when the bend plate 21 is engaged with the locking recess 15. Configured.

  According to the present invention, the mounting cap A1 is arbitrarily fitted to the cylinder A2 with respect to the position in the circumferential direction, and then the cylinder A2 is rotated by mutual rotation so that the bend plate 21 is fitted to the locking recess 15. The mounting cap A1 can be positioned.

  The bend plate 21 is composed of a first bend plate 21a and a second bend plate 21b projecting at a predetermined position on either the flange 20 or the mounting cap top wall 11, and the first bend plate 21a and the second bend plate 21b are Each of the free ends has a projecting piece shape having a first engagement surface 22a and a second engagement surface 22b that are opposite in the circumferential direction along the center circle, and the locking recess 15 is formed on the flange 20 or the top wall of the mounting cap. 11 includes a first locking recess 15a and a second locking recess 15b that are recessed at a predetermined position, and the first locking surface 15a is locked to the first locking recess 15a. When the second locking recess 15b is provided with a second locking surface 16b for locking the second engaging surface 22b, the two locking recesses 15 are separated from each other. It can be provided and a more stable locking state can be maintained.

  A first inclined surface 17a is provided on the side opposite to the first locking surface 16a in the first locking recess 15a in the circumferential direction, and a second inclined surface 16b in the second locking recess 15b is provided on the opposite side in the circumferential direction. When the two inclined surfaces 17b are provided, each bend plate 21 is surely engaged with each locking recess 15 regardless of which direction the mounting cap A1 and the cylinder A2 are rotated. Become.

  The bend plate 21 is projected at a predetermined position on either the flange 20 or the mounting cap top wall 11, and one edge is connected along the center circle to project the other edge, and both ends in the circumferential direction Are configured as a first engagement surface 22a and a second engagement surface 22b, respectively, and the locking recess 15 is recessed at a predetermined position on either the flange 20 or the mounting cap top wall 11 and along the center circle. When both side ends are configured as the first locking surface and the second locking surface, there is an advantage that the structure becomes simpler.

  A rib 25 for rotational torque is provided on either one of the flange 20 or the top wall 11 of the mounting cap, and a fitting recess 18 is provided on either side for fitting the rib 25 for rotational torque. If the rib 25 for rotational torque is configured to be able to be fitted into the fitting recess 18 when the locking recess 15 is engaged, the burden on the bend plate 21 can be reduced and the bend plate 21 can be handled during handling. Inconvenience such as breakage can be prevented.

It is a partially notched principal part side view of a pump. Example 1 It is a principal part expanded sectional view of FIG. Example 1 It is a perspective view of a cylinder. Example 1 It is explanatory drawing explaining the rib for rotational torque. Example 1 It is a partially notched principal part side view of the state which mounted | wore the container with the pump. Example 1 It is a principal part expanded sectional view of FIG. Example 1 It is explanatory drawing explaining the effect | action of a bend board. Example 1 It is explanatory drawing explaining the effect | action of a bend board. Example 1 It is a principal part expansion perspective view which shows a bend board. (Example 2) It is a partially notched principal part side view of the state which mounted | wore the container with the pump. (Example 3) It is a principal part expanded sectional view of FIG. (Example 3)

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

  1 to 8 show an example of the pump A, and the pump A includes a mounting cap A1, a cylinder A2, and an operating member A3.

  As shown in FIGS. 5 and 6, the mounting cap A 1 has a flange-like top wall 11 extending from the upper end of the peripheral wall 10 to be screwed onto the outer periphery of the mouth neck portion 100 of the container body B. The inner guide cylinder 12 is further erected, and the outer guide cylinder 13 is erected with a space therebetween.

  The cylinder A2 has a cylindrical shape with upper and lower ends opened, and a flange 20 is projected from the upper part of the outer periphery. The flange 20 is engaged with the back surface of the mounting cap A1 by a special form engaging means described later, and the container body Mounted in the state of hanging in B. In addition, a pump mechanism (not shown) is provided inside.

  The actuating member A3 houses the lower part in the cylinder, projects the upper part from the upper end opening of the cylinder A2 through the central opening of the mounting cap A1, and projects the upper end discharge head 30 to be movable up and down above the mounting cap A1, It is mounted so that it can move up and down in the upward biased state.

  Then, the liquid in the container is sucked up and discharged from the discharge port 31 of the discharge head 30 by the action of the built-in pump mechanism by the vertical movement of the operation member A3.

  In the present invention, a special-type engaging means of the cylinder A2 with respect to the mounting cap A1 is provided. The engaging means includes a locking ridge 14 provided around a predetermined position on the inner surface of the peripheral wall 10 of the mounting cap A1, and the flange 20 has its peripheral surface over the locking ridge 14 and engaged with it. And a back surface of the mounting cap top wall 11 so as to have a predetermined gap, and in this state, they are engaged with each other so as to be able to move close to each other and rotate.

  The flange 20 is provided with a slidable bend plate 21 projecting from the back surface of the mounting cap top wall 11 that is the surface on the mounting cap top wall 11 side. As shown in FIG. 3, the bend plate 21 in this example is composed of a first bend plate 21 a and a second bend plate 21 b that protrude from opposing edges on the flange 20. Are configured as a first engagement surface 22a and a second engagement surface 22b in which the engagement surface 22 at the free end is opposite in the circumferential direction. More specifically, a pair of first notch 23 and second notch 24 are formed in the opposite edge of the flange 20, and a projecting first bend plate 21 a is formed obliquely above one circumferential end surface of the first notch 23. Further, a projecting piece-like second bend plate 21b is provided projecting obliquely above the other circumferential end of the second notch 24. The upper edge of each bend plate 21 slides on the back surface of the mounting cap top wall 11 as shown by a two-dot chain line in FIG. It is configured so that it can be pressed.

  Further, a locking recess 15 is provided in a predetermined position on the back surface of the mounting cap top wall 11. The locking recess 15 in this example is composed of a first locking recess 15a and a second locking recess 15b that are recessed at the position opposite to the back surface of the top wall of the mounting cap. It has a surface 16. That is, the first locking recess 15a is the first locking surface 16a on which the first engaging surface 22a is locked, and the second locking recess 15b is the second locking on which the second engaging surface 22b is locked. Each surface 16b is provided. The positional relationship between the first locking recess 15a and the second locking recess 15b is such that each bend plate 21 is engaged with each locking recess 15 and the first engagement surface 22a is in contact with the first locking surface 16a. The two engaging surfaces 22b are provided at spaced positions where they are in contact with the second engaging surfaces 22b.

  Each locking recess 15 is provided with an inclined surface 17. The inclined surface 17 includes a first inclined surface 17a provided on the opposite side in the circumferential direction to the first locking surface 16a in the first locking recess 15a, and a second locking surface 16b in the second locking recess 15b. This is a second inclined surface 17b provided on the opposite side in the circumferential direction, so that the bend plate 21 having the engagement surface 22 in the opposite direction to the engagement surface 16 can be easily passed through the engagement recess 15 due to this presence. is doing.

  Further, in this example, a rotational torque corresponding rib 25 is projected at a predetermined position on the upper surface of the flange 20, and a fitting recess 18 into which the rotational torque corresponding rib 25 is fitted at a predetermined position on the back surface of the mounting cap 11 is provided. is doing. As shown in FIG. 3, a plurality of ribs 25 corresponding to the rotational torque project in the circumferential direction at the center portion in the inner and outer directions of the flange 20, and the fitting recess 18 has a rotational torque at a predetermined position on the rear surface of the mounting cap top wall 11. The same number of recesses as the corresponding ribs 25 are provided. The predetermined position here refers to a predetermined position where each fitting recess 18 is positioned above each rotational torque corresponding rib 25 when each bend plate 21 is fitted and locked in each locking recess 15. It is. Each of the rotational torque corresponding ribs 25 is sized to be accommodated in each fitting recess 18 when the flange 20 and the mounting cap top wall 11 come into contact with each other. However, in consideration of the convenience of mounting, it is preferable that the size of the fitting recess 18 is slightly larger in the width direction.

  The operation of assembling the cylinder A2 to the mounting cap A1 of the pump A configured as described above will be described. For example, the flange 20 is fitted at an arbitrary position in the circumferential direction in the mounting cap A1 from above the cylinder A2. At that time, the peripheral edge of the cylinder A2 climbs over and engages with the locking protrusion 14 of the mounting cap A1, and the upper edges of the first bend plate 21a and the second bend plate 21b are on the back surface of the mounting cap top wall 11, respectively. There is a gap between the back surface of the mounting cap top wall 11 and the upper surface of the flange 20. Each rotational torque corresponding rib 25 is in a position shifted from the corresponding fitting recess 18.

  From this state, the flange 20 is rotated with respect to the mounting cap A1 to engage the first bend plate 21a in the first locking recess 15a and the second bend plate 21b in the second locking recess 15b. The cylinder A2 is positioned with respect to the mounting cap A1 by bringing the first engagement surface 22a into contact with the first engagement surface 16a and the second engagement surface 22b into contact with the second engagement surface 16b. In the case of this example, the positioning is performed so that the outside air introduction hole 26 of the cylinder A2 is located at the rear part opposite to the discharge port 31. In this case, as shown in FIGS. 1 and 2, each bend plate 21 maintains the separated state between the mounting cap top wall 11 and the flange 20. Incidentally, the presence of the first inclined surface 17a and the second inclined surface 17b corresponds to which direction the mutual rotation direction is. Further, the actuating member A3 is mounted on the cylinder A2 from above after fitting the cylinder A2 and the mounting cap A1, and further, although not shown, a known positioning mechanism is provided between the mounting cap A1 and the discharge head 30, The discharge head 30 is configured to always move up and down in a predetermined direction with respect to the mounting cap A1.

  Next, the pump A in the state shown in FIG. 1 and FIG. When the cylinder A2 is suspended from the upper side of the container body B into the container body B and the peripheral wall 10 is screwed to the outer periphery of the mouth neck portion 100, the flange 20 comes into contact with the upper surface of the mouth neck portion 100 via the packing p. While each rotational torque corresponding rib 25 is fitted in the fitting recess 18, each bend plate 21 is elastically deformed so that the upper surface of the flange 20 and the rear surface of the mounting cap top wall 11 come into contact with each other, as shown in FIGS. It becomes.

  When the pump A is removed from the container body B, when the mounting cap A1 is unscrewed from the mouth-and-neck portion 100, each rotational torque corresponding rib 25 is removed from the fitting recess 18 and each bend plate 21 is elastically restored. Thus, the state shown in FIGS. 1 and 2 is obtained. The mounting cap A1 and the cylinder A2 maintain the positional relationship in the circumferential direction by the engagement of each bend plate 21 and each locking recess 15.

  FIG. 9 shows another example, and shows an example in which the bend plate 21 is constituted by one piece. In this example, the bend plate 21 is connected to the edge of the flange 20 with the inner edge along the center circle, and the outer edge protrudes obliquely upward, and both ends in the circumferential direction are provided. The first engaging surface 22a and the second engaging surface 22b are respectively configured. Specifically, an arc-shaped through-hole 27 is drilled along a central circle at a predetermined position on the edge of the flange 20, and an arc-shaped bend plate 21 having an inner edge connected to the inner edge of the through-hole 27 is outward. It protrudes diagonally upward, and both end surfaces are a first engagement surface 22a and a second engagement surface 22b. In this case, the locking recess 15 is recessed at a predetermined position corresponding to the back surface of the mounting cap top wall 11, and both circumferential ends along the center circle are configured as a first locking surface and a second locking surface. . Other configurations are the same as those in the example of FIG. Since the operation in this case is substantially the same as the example of FIG. In this case, the center circle means a circle centered on the center of the flange 20, and in the case of the mounting cap A1, it means a circle centered on the center of the mounting cap A1, and its radius size. It doesn't matter.

  10 and 11 show another example, in which the bend plate 21 is protruded from the mounting cap top wall 11 and the locking recess 15 is provided in the flange 20. In this case, a through hole 19 is formed in the mounting cap top wall 11 between the inner guide tube 12 and the outer guide tube 13, and a first bend plate 21a is projected from one end surface of the through hole 19, Further, a locking recess 15 having a locking surface 16 and an inclined surface 17 similar to those of the example of FIG. Although only one bend plate 21 and the locking recess 15 are shown in the figure, the opposite position of the mounting cap top wall 11 and the opposite position of the flange 20 are the opposite bend plate 21 and locking recess as in FIG. 15 is provided. Further, in this case, a plurality of rotational torque-corresponding ribs 25 are provided in the circumferential direction at predetermined positions outside the locking recess 15 of the flange 20, and the fitting recesses 18 are provided at corresponding predetermined positions on the back surface of the mounting cap top wall 11. A plurality of circumferential directions are provided. Other configurations are the same as those in the example of FIG. Further, the operation in this case is substantially the same as that of the example of FIG.

A ... Pump
A1… Mounting cap
10 ... peripheral wall, 11 ... top wall, 12 ... internal guide tube, 13 ... external guide tube, 14 ... locking protrusion, 15 ... locking recess, 15a ... first locking recess, 15b ... second locking recess, 16 ... locking surface, 16a ... first locking surface,
16b: second locking surface, 17: inclined surface, 17a: first inclined surface, 17b: second inclined surface, 18: fitting recess, 19: through hole
A2 ... Cylinder
20 ... Flange, 21 ... Bend plate, 21a ... First bend plate, 21b ... Second bend plate, 22 ... Engagement surface, 22a ... First engagement surface, 22b ... Second engagement surface, 23 ... First notch , 24 ... Second notch,
25 ... Rib for torque support, 26 ... Outside air introduction hole, 27 ... Through hole A3 ... Operating member
30 ... Discharge head, 31 ... Discharge port B ... Container body
100 ... Mouth and neck p ... Packing

Claims (5)

  A mounting cap (A1) having a flange-like top wall (11) extending from the upper end of the peripheral wall (10) to be fitted to the outer periphery of the container body neck and neck (100), and an inner peripheral upper end of the mounting cap peripheral wall (10) The cylinder (A2) in which the peripheral edge of the flange (20) projecting from the outer periphery of the upper part is fitted, the lower part is housed in the cylinder (A2), and the discharge head (30) at the upper end is mounted on the mounting cap (A1). ) And an actuating member (A3) that protrudes upward and is mounted so as to be movable up and down in an upward biased state, and the actuating member (A3) moves the liquid in the container body B by the up and down movement of the ejection head (30) ( 31) A pump that discharges from the flange (20) and the flange (20) is attached to the periphery of the flange (20) so that the flange (20) and the mounting cap top wall (11) can be moved close to each other and rotated together. Engage the cap wall (10), A bend plate (21) slidable on the other side surface is projected at a predetermined position of either the lung (20) or the mounting cap top wall (11), and the flange (20) or the mounting cap top wall (11). A locking recess 15 is provided at a predetermined position on the other side, and the flange (20) fitted in the mounting cap (A1) is rotated with respect to the mounting cap (A1) to thereby turn the bend plate (21). A pump characterized in that the mounting cap (A1) and the cylinder (A2) can be positioned relative to each other by engaging in the locking recess (15).   The bend plate (21) is composed of a first bend plate (21a) and a second bend plate (21b) projecting at a predetermined position on either the flange (20) or the mounting cap top wall (11). The bend plate (21a) and the second bend plate (21b) are protrusions having free ends as first engagement surfaces (22a) and second engagement surfaces (22b) that are opposite in the circumferential direction along the center circle, respectively. The first locking recess (15a) and the second locking recess (in the shape of a piece, the locking recess (15) is recessed at a predetermined position on either the flange (20) or the mounting cap top wall (11). 15b), the first locking recess (15a) has a first locking surface (16a) to which the first engaging surface (22a) is locked, and the second locking recess (15b) has a first locking surface. The second engaging surface (16b) on which the two engaging surfaces (22b) are locked, respectively. Amplifier.   The first locking surface (16a) in the first locking recess (15a) and the first inclined surface (17a) on the opposite side in the circumferential direction, and the second locking surface in the second locking recess (15b) ( The pump according to claim 2, wherein a second inclined surface (17b) is provided on the opposite side in the circumferential direction to 16b). The bend plate (21) is projected at a predetermined position on either the flange (20) or the mounting cap top wall (11), and one edge is connected along the center circle to project the other edge. In addition, both ends in the circumferential direction are configured as a first engagement surface (22a) and a second engagement surface (22b), respectively, and the locking recess (15) is formed on the flange (20) or the mounting cap top wall (11). 2. The pump according to claim 1, wherein the pump is recessed at one of the other predetermined positions, and both ends in the circumferential direction are configured as a first locking surface and a second locking surface.   A fitting recess in which a rotational torque corresponding rib (25) projects from either the flange (20) or the mounting cap top wall (11), and the rotational torque corresponding rib (25) is fitted to either one of them. (18) is provided, and when the bend plate (21) is engaged with the locking recess (15), the rib (25) for rotating torque can be fitted into the fitting recess (18). The pump according to any one of claims 1 to 4.