WO2023149022A1 - スプリング、それを用いたポンプ、および、噴出容器 - Google Patents

スプリング、それを用いたポンプ、および、噴出容器 Download PDF

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Publication number
WO2023149022A1
WO2023149022A1 PCT/JP2022/038805 JP2022038805W WO2023149022A1 WO 2023149022 A1 WO2023149022 A1 WO 2023149022A1 JP 2022038805 W JP2022038805 W JP 2022038805W WO 2023149022 A1 WO2023149022 A1 WO 2023149022A1
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WO
WIPO (PCT)
Prior art keywords
ring
spring
members
shaped
columnar
Prior art date
Application number
PCT/JP2022/038805
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
敏男 富永
Original Assignee
株式会社三谷バルブ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社三谷バルブ filed Critical 株式会社三谷バルブ
Priority to JP2023571445A priority Critical patent/JP7454902B2/ja
Priority to KR1020247020066A priority patent/KR20240134865A/ko
Priority to CN202280081462.3A priority patent/CN118382767A/zh
Publication of WO2023149022A1 publication Critical patent/WO2023149022A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers

Definitions

  • the present invention relates to a pump that is attached to an opening of a container and that ejects the liquid in the container, and more particularly to a pump that has a structure in which the spring that constitutes the pump does not come into contact with the contents.
  • the pump that is attached to the opening of the container and ejects the liquid in the container is generally made of resin, but metal materials are used for ball valves and springs. Depending on the components of the liquid to be ejected, the liquid reacts with the metal parts and changes in quality. In such a case, it is necessary to change the composition of the liquid to one that does not react with the metal parts, forcing the manufacturer into inconvenience.
  • Patent Document 1 proposes a pump that is devised so that metal parts are not arranged in the liquid passage.
  • This pump is a drug dispenser and is usually located inside a cylinder with a spring outside the cylinder and piston that pushes up the piston.
  • the medicine dispenser in order to block the inflow of dust, foreign matter, and bacteria from the outside during the process of discharging the medicine, the medicine dispenser has the upper end of the piston as a separate member from the lower part of the piston.
  • a second spring is arranged between the As a result, when the medicine is not ejected from the ejection port, the second spring pushes up the upper end member of the piston to block the ejection port.
  • the pump including the spring
  • the recycling efficiency can be improved and the environmental load can be reduced. Therefore, resin springs are desired.
  • the spring that pushes up the piston needs to push up the piston with a predetermined restoring force in order to suck up the liquid into the cylinder.
  • a spring having a spring constant equal to or greater than a predetermined value it is necessary to use a spring having a relatively long natural length.
  • the coil-shaped spring arranged outside the cylinder and on the outer circumference of the piston portion has a larger diameter than the spring arranged inside the cylinder, and the spring length is It is long and there is no cylinder to guide the outer circumference of the spring. Therefore, when compressed, the spring tends to deform and expand outward, and the force tends to disperse in directions other than the vertical direction. In addition, the spring is likely to come off from the connecting portion with the piston during the assembly process of the pump during manufacturing.
  • An object of the present invention is to provide a pump that can efficiently push up a cylinder with a resin spring.
  • the present invention provides a pump equipped with a spring including first and second ring-shaped members facing each other and two or more flexible column-shaped members.
  • Both the first and second ring members and the two or more columnar members are made of resin.
  • the columnar member is curved along the circumferential direction of the first and second ring-shaped members and inclined with respect to the axial direction of the first and second ring-shaped members. Both ends are fixed to the first and second ring-shaped members, respectively.
  • the first and the angle in the circumferential direction of the second ring-shaped member is smaller than 2 ⁇ .
  • FIG. 1 (a) to (f) six-sided views and (g) perspective view of a spring 40 of modification 2-2. (a) to (f) six-sided views and (g) perspective view of a spring 40 of Modified Example 3-1. (a) to (f) six-sided views and (g) perspective view of a spring 40 of Modified Example 3-2. (a) to (f) six-sided views and (g) a perspective view of a spring 40 of Modified Example 4. FIG. (a) to (f) six-sided views and (g) a perspective view of a spring 40 of Modified Example 5. FIG. (a) to (f) six-sided views and (g) a perspective view of a spring 40 of Modification 6. FIG.
  • 1(a) and 1(b) are cross-sectional views of the entire ejection container 1 of the embodiment, and FIG. 2(b) is a sectional view of the nozzle 22, and FIG. 2(c) is a sectional view of the pump 2 with the nozzle 22 and the spring 40 removed.
  • the ejection container 1 comprises a container 10 having an opening 11 and a pump 2 for ejecting the contents of the container 10 .
  • the pump 2 comprises a cylinder 30, a piston 20, a cylinder bush 31, and a nozzle 22, as shown in FIG. 2(c).
  • the cylinder 30 has an opening at the top, and the lower end of the piston 20 is inserted into the opening of the cylinder 30 .
  • the piston includes a lower piston 20a, a piston outer cylinder 20b covering the upper part of the lower piston 20a, and a piston valve 20c fixed to the lower part of the piston outer cylinder 20b.
  • An annular cylinder bush covers the space around the piston 20 at the opening of the cylinder 30 .
  • the nozzle 22 is attached to the upper end of the piston outer cylinder 20b of the piston 20.
  • a cylinder 70 that forms an annular space around the piston 20 is mounted on the upper portion of the annular cylinder bushing 31 .
  • a spring 40 is arranged in the cylinder 70 to bias the nozzle 22 upward. That is, the piston 20 penetrates the central space of the spring 40 .
  • a plurality of springs 40 may be stacked as shown in FIGS. 1(a), (b) and 2(a), or only one as shown in FIG. 2(a).
  • FIG. 3(a) to (f) are six views of the spring 40
  • FIG. 3(g) is a perspective view of the spring 40.
  • the spring 40 includes first and second ring-shaped members 41 and 42 and two flexible columnar members 43 and 44 that are arranged to face each other. Both the first and second ring-shaped members 41 and 42 and the two columnar members 43 and 44 are made of resin.
  • the columnar members 43 and 44 are curved along the circumferential direction and inclined in the axial direction of the first and second ring-shaped members. , and both ends of the columnar members 43 and 44 are fixed to the first and second ring-shaped members 41 and 42, respectively.
  • a fixed position between one end (upper end) of the columnar member 43 and the first ring-shaped member 41 is called a first fixed position 43a.
  • a fixing position between the other end (lower end) of the columnar member 43 and the second ring-shaped member 42 is called a second fixing position 43b.
  • the circumferential angle of the first and second ring-shaped members from the first fixing position 43a to the second fixing position 43b is smaller than 2 ⁇ . For the spring 40 of FIGS. 3(a)-(g), the angle is approximately 200 degrees.
  • first fixed position 44a the position where one end (upper end) of the columnar member 44 is fixed to the first ring-shaped member 41
  • second fixed position 44b the position where one end (lower end) of the columnar member 44 and the second ring-shaped member 42 is called a second fixed position 44b.
  • the angle in the circumferential direction of the first and second ring-shaped members from the first fixing position 44a to the second fixing position 44b is smaller than 2 ⁇ , and in the case of the spring 40 of FIGS. The angle is approximately 200 degrees.
  • One ends of the two columnar members 43 and 44 are fixed to the first ring-shaped member at regular intervals, and the other ends are fixed to the second ring-shaped member at regular intervals.
  • the distance between the first ring-shaped member 41 and the second ring-shaped member 42 is equal to that of the first and second ring-shaped members 41 and 42.
  • 42 is preferably less than or equal to 1.5 times the diameter.
  • the lower surface of the second ring-shaped member 42 of the spring 40 is arranged inside the cylinder 70 so as to be in contact with the upper surface of the annular cylinder bushing 31 .
  • the number of stacked springs 40 or the height of the pump 2 is designed so that the upper surface of the first ring-shaped member 41 of the spring 40 is in contact with part of the nozzle 22 attached to the upper end of the piston 20. It is
  • the axial outer surfaces of the first and second ring-shaped members 41 and 42 (that is, the upper surface of the first ring-shaped member 41 and the second ring-shaped member 42) is preferably flat.
  • the axial outer surfaces of the first and second ring-shaped members 41 and 42 are not limited to flat surfaces.
  • the axial outer surfaces of the first ring-shaped member 41 and the second ring-shaped member 42 that contact each other that is, the upper surface of the first ring-shaped member 41 and the second ring-shaped member 42
  • At least one of the upper surface of the first ring-shaped member 41 and the lower surface of the second ring-shaped member 42 may be provided with a fitting portion such as unevenness for fitting the lower surface of the ring-shaped member 42 .
  • the spring 40 is compressed by the nozzle 22 while the pump 2 is operating.
  • the restoring force of the spring 40 pushes the nozzle 22 back to its original position.
  • the spring 40 of this embodiment is made of resin, and the columnar members 43 and 44 are curved so that the angle along the circumferential direction of the ring-shaped member 41 is smaller than 2 ⁇ . can also be shortened in axial length (i.e., reduced in height).
  • the height of the pump 2 is determined by the length of the spring, but when the short spring 40 of this embodiment is used, the height of the pump 2 can be reduced. It is possible. Therefore, the degree of freedom in designing the height of the pump 2 is increased.
  • the spring 40 of the present embodiment is provided with ring-shaped members 41 and 42 at the upper end and the lower end. can be used. By varying the number of springs stacked in the pump 2 , pumps 2 of different heights can be assembled using the same springs 40 .
  • the spring 40 since the spring 40 has ring-shaped members 41 and 42 at its upper and lower ends, the columnar members 43 and 44 are less likely to expand outward even when compressed. Therefore, it is difficult to disperse the force of compression or extension in the radial direction, and it can be converted into displacement in the axial direction.
  • the ring-shaped members 41 and 42 are deformed into an ellipse. Since the columnar members 43 and 44 are supported in this way, it is possible to prevent the columnar members 43 and 44 from being deformed so as to swell outward.
  • the outer and inner diameters of the ring-shaped members 41 and 42 and the material of the resin are adjusted so that they do not touch the piston 20 penetrating the spring 40. design it. Thereby, the clearance between the piston 20 and the spring 40 can be secured.
  • a take-in hole 32 for taking in the solution into the cylinder 30 is arranged.
  • a plate-shaped valve 33 is arranged in the intake hole 32 to prevent backflow.
  • the valve 33 is made of resin. This eliminates the need to use metal balls that are generally used as valves.
  • An annular fixture 3 for mounting the pump 2 to the opening 11 of the container 10 is connected to the lower end of the cylinder 70 .
  • a seal structure 34 is provided at the upper end of the outer circumference of the cylinder 30 to prevent leakage of the liquid in the container 10 .
  • a minute cylindrical member 34 a pressed against the inner edge of the opening 11 and a ring-shaped member 34 b pressed against the upper edge of the opening 11 are provided as the seal structure 34 .
  • the seal structure 34 can be formed of the same resin material as the cylinder 30 and the like.
  • All members of the pump 2 as well as the spring 40 can be made of the same resin material.
  • all the members of the pump 2 can be made of polypropylene, there is no need to separate them when disposing of the pump 2, and recycling is easy.
  • the spring 40 is not arranged inside the cylinder 30, so there is no risk of the spring 40 being corroded by the liquid. Moreover, even if the external atmosphere contains a volatile chemical, the spring 40 is made of resin and is therefore free from corrosion.
  • the springs 40 are small and can be stacked and placed inside the pump 2, the length (height) of the springs 40 can be adjusted, and the pump 2 can be designed with a high degree of freedom.
  • the spring 40 of FIG. 4 has four reinforcing members 45 to 48 arranged between two columnar members 43 and 44 .
  • One end of the reinforcing members 45 to 48 is fixed to one of the columnar members 43 and 44, and the other end is fixed to another one.
  • the spring 40 in FIG. 5 has the same configuration as the spring 40 in FIG. 3, but the inclination angles of the columnar members 43 and 44 are smaller than in FIG.
  • a spring 40 in FIG. 6 has a structure in which four reinforcing members 45 to 48 are arranged between two columnar members 43 and 44 of the spring in FIG.
  • a spring 40 in FIG. 7 has a structure in which three columnar members 143, 144, and 145 are arranged at regular intervals.
  • the spring 40 of FIG. 8 has a structure in which six reinforcing members 146 to 151 are arranged between the three columnar members 143, 144, 145 of the spring 40 of FIG.
  • the number of columnar members of the spring 40 in FIG. 9 is an even number of four or more (four in this example), and half of the columnar members 445 and 446 are inclined in the opposite direction to the other half of the columnar members 443 and 444. , the direction of displacement of the second fixing positions 443b to 446b with respect to the first fixing positions 443a to 446a is set. As a result, half of the columnar members 445 and 446 intersect the remaining half of the columnar members 443 and 444 and are fixed to each other at intersection positions 450 and 451 and the like.
  • half of the columnar members 445 and 446 and the remaining half of the columnar members 443 and 444 act as mutually reinforcing members, and it is possible to suppress lateral expansion of the columnar members 443 to 446. .
  • the columnar members 243 and 244 of the spring 40 in FIG. 10 are plate-shaped members curved in a shape along the circumferential direction of the first and second ring-shaped members 41 and 42 .
  • a first fixing position 243a which is a fixing position between one end (upper end) of the plate-shaped columnar member 243 and the first ring-shaped member 41, and the other end (lower end) of the columnar member 243 and the second ring-shaped member 42.
  • the second fixed position 243b which is the fixed position of , is at the same angle with respect to the centers of the first and second ring-shaped members 41,42. That is, there is a second fixation position directly below the first fixation position 243a.
  • the plate-like columnar members 243 and 244 are curved outward with respect to the central axis connecting the center of the first ring-shaped member 41 and the center of the second ring-shaped member 42 .
  • the spring 40 of FIG. 10 can obtain the same actions and effects as the spring of FIG. 3 and the springs of each modified example.
  • the spring 40 of FIG. 11 is configured with first and second ring-shaped members 41 and 42 and a tubular member 343 that are arranged to face each other. Both the first and second ring-shaped members 41 and 42 and the cylindrical member 343 are made of resin.
  • Both ends of the cylindrical member 343 are fixed to the first and second ring-shaped members 41 and 42, respectively.
  • the diameter of the cylindrical member 343 varies in the axial direction, being the largest at both ends in the axial direction and the smallest at the center in the axial direction.
  • the tubular member 343 has the largest diameter at both ends, is linearly inclined toward the center, and has the smallest diameter at the center.
  • cutouts 343a and 343b are provided in the first and second ring-shaped members 41 and 42, respectively.
  • the cutouts 343a and 343b reach the tubular member 343, and the tubular member 343 is also cut out.
  • the spring 40 of FIG. 11 is similar to the spring of FIG. 3 and the springs of each modified example, when the user applies force to the nozzle 22, the tubular member 343 is deformed and compressed, and when the user releases the hand, the spring 40 of FIG. The nozzle 22 can be pushed up by the restoring force of the spring 40 of .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Closures For Containers (AREA)
  • Reciprocating Pumps (AREA)
PCT/JP2022/038805 2022-02-01 2022-10-18 スプリング、それを用いたポンプ、および、噴出容器 WO2023149022A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2023571445A JP7454902B2 (ja) 2022-02-01 2022-10-18 スプリング、それを用いたポンプ、および、噴出容器
KR1020247020066A KR20240134865A (ko) 2022-02-01 2022-10-18 스프링, 그것을 사용한 펌프, 및 분출 용기
CN202280081462.3A CN118382767A (zh) 2022-02-01 2022-10-18 弹簧、使用该弹簧的泵、以及喷出容器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-014500 2022-02-01
JP2022014500 2022-02-01

Publications (1)

Publication Number Publication Date
WO2023149022A1 true WO2023149022A1 (ja) 2023-08-10

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PCT/JP2022/038805 WO2023149022A1 (ja) 2022-02-01 2022-10-18 スプリング、それを用いたポンプ、および、噴出容器

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Country Link
JP (1) JP7454902B2 (enrdf_load_stackoverflow)
KR (1) KR20240134865A (enrdf_load_stackoverflow)
CN (1) CN118382767A (enrdf_load_stackoverflow)
WO (1) WO2023149022A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025154319A1 (ja) * 2024-01-16 2025-07-24 株式会社三谷バルブ ポンプ、スプリング、および、噴出容器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09303453A (ja) * 1996-05-10 1997-11-25 Kyoritsu Kogyo Kk 樹脂製コイルバネ及び手押しポンプ機構
JP2000042457A (ja) * 1998-07-31 2000-02-15 Polyplastics Co ディスペンサ
JP2000213455A (ja) * 1999-01-22 2000-08-02 Precision Spring Kk 液体注出ポンプ用樹脂ばね
JP2014193338A (ja) * 2013-03-18 2014-10-09 Kyung Ok Yang 薬剤ディスペンサ
WO2014185541A1 (ja) * 2013-05-12 2014-11-20 キャニヨン株式会社 プッシュタイプディスペンサー
JP2016534948A (ja) * 2013-10-23 2016-11-10 ザ プロクター アンド ギャンブル カンパニー 再利用可能なプラスチック製エアゾールディスペンサ
JP2021104838A (ja) * 2019-12-26 2021-07-26 小林製薬株式会社 薬液供給具、薬液供給器具及び薬液供給具の製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09303453A (ja) * 1996-05-10 1997-11-25 Kyoritsu Kogyo Kk 樹脂製コイルバネ及び手押しポンプ機構
JP2000042457A (ja) * 1998-07-31 2000-02-15 Polyplastics Co ディスペンサ
JP2000213455A (ja) * 1999-01-22 2000-08-02 Precision Spring Kk 液体注出ポンプ用樹脂ばね
JP2014193338A (ja) * 2013-03-18 2014-10-09 Kyung Ok Yang 薬剤ディスペンサ
WO2014185541A1 (ja) * 2013-05-12 2014-11-20 キャニヨン株式会社 プッシュタイプディスペンサー
JP2016534948A (ja) * 2013-10-23 2016-11-10 ザ プロクター アンド ギャンブル カンパニー 再利用可能なプラスチック製エアゾールディスペンサ
JP2021104838A (ja) * 2019-12-26 2021-07-26 小林製薬株式会社 薬液供給具、薬液供給器具及び薬液供給具の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025154319A1 (ja) * 2024-01-16 2025-07-24 株式会社三谷バルブ ポンプ、スプリング、および、噴出容器

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JP7454902B2 (ja) 2024-03-25
JPWO2023149022A1 (enrdf_load_stackoverflow) 2023-08-10
KR20240134865A (ko) 2024-09-10
CN118382767A (zh) 2024-07-23

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