Multi-valve pump head

Patent metadata

Field	Value
Publication number	US-11235738-B2
Application number	US-202017110066-A
Country	US
Kind code	B2
Filing date	Dec 2, 2020
Priority date	Dec 2, 2019
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A pump head configured to secure various air valve types is disclosed. The pump head may include a housing and an interior unit sized and shaped to receive a valve head. A moveable pin disposed within the housing coaxially with the first axis may define a pin notch disposed about an exterior circumference of the moveable pin. A first taper unit may be disposed in the housing coaxially with the first axis and coupled to the pin return spring. A second taper unit may be disposed in the housing coaxially with the first axis and adjacent to the first taper unit. An elastic taper C-ring may be disposed between the first and second taper units. A lock arm may be configured to engage the first taper unit with the second taper unit, thereby compressing the elastic taper C-ring circumferentially in one of at least two positions, the elastic taper C-ring compressed about the pin notch in the first position and about the valve head in the second position.

First claim

What is claimed is:

1. A pump head comprising:
a housing defining an aperture about a first axis, the aperture sized and shaped to receive a valve head therein;
a movable pin disposed within the housing coaxially with the first axis; the movable pin defining a pin notch disposed about an exterior circumference of the movable pin;
a pin return spring coupled to the movable pin and coaxially with the first axis, the pin return spring biasing the movable pin towards the aperture;
a first taper unit disposed in the housing coaxially with the first axis;
a second taper unit coupled to the pin return spring, the second taper unit disposed in the housing coaxially with the first axis and adjacent to the first taper unit, the second taper unit biased away the first taper unit;
an elastic taper C-ring disposed between the first and second taper units;
a lock arm pivotally coupled to the housing, the lock arm configured to press the second taper unit towards the first taper unit, thereby compressing the elastic taper C-ring circumferentially in at least one of two positions, the elastic taper C-ring compressed about the pin notch in the first position and about the valve head in the second position.

2. The pump head of claim 1 , further comprising a grommet disposed between the housing and the aperture.

3. The pump head of claim 2 , wherein the grommet provides a sealing engagement around the valve head when inserted into the housing.

4. The pump head of claim 3 , wherein the grommet is fabricated from a compressible material.

5. The pump head of claim 1 , further comprising an O-ring between the second taper unit and the housing to provide a movable seal between the second taper unit and the housing.

6. The pump head of claim 1 , wherein the first taper unit is fixed within the housing.

7. The pump head of claim 1 , wherein the second taper unit comprises a guide positioned along the first axis and coupled to the return spring.

8. The pump head of claim 1 , further comprising a withdraw spring, wherein the lock arm is biased away from the second taper unit.

9. The pump head of claim 1 , wherein the elastic C-ring defines a first elastic taper C-ring side adjacent the first taper unit and a second elastic taper C-ring side adjacent the second taper unit.

10. The pump head of claim 1 , wherein the valve head is a Schrader-type air valve or a Presta-type air valve.

11. A pump head comprising:
a housing defining an aperture about a first axis, the aperture sized and shaped to receive a valve head therein;
a grommet disposed between the housing and the aperture, the grommet comprising a first portion sized and shaped to accommodate a Schrader-type valve head and a second portion sized and shaped to accommodate a Presta-type valve head;
a movable pin disposed within the housing coaxially with the first axis; the movable pin defining a pin notch disposed about an exterior circumference of the movable pin;
a pin return spring coupled to the movable pin and coaxially with the first axis, the pin return spring biasing the movable pin towards the aperture;
a first taper unit disposed in the housing coaxially with the first axis;
a second taper unit coupled to the pin return spring, the second taper unit disposed in the housing coaxially with the first axis and adjacent to the first taper unit, the second taper unit biased away the first taper unit;
an elastic taper C-ring disposed between the first and second taper units;
a lock arm pivotally coupled to the housing, the lock arm configured to press the second taper unit towards the first taper unit, thereby compressing the elastic taper C-ring circumferentially in at least one of two positions, the elastic taper C-ring compressed about the pin notch in the first position and about the valve head in the second position.

12. The pump head of claim 11 , wherein the movable pin defines a pin head notch configured to engage a pin of the valve head.

13. The pump head of claim 11 , wherein the grommet provides a sealing engagement around the valve head when inserted into the housing.

14. The pump head of claim 13 , wherein the grommet is fabricated from a compressible material.

15. The pump head of claim 11 , further comprising an O-ring between the second taper unit and the housing to provide a movable seal between the second taper unit and the housing.

16. The pump head of claim 11 , wherein the first taper unit is fixed within the housing.

17. The pump head of claim 11 , wherein the second taper unit comprises a guide positioned along the first axis and coupled to the return spring.

18. The pump head of claim 11 , further comprising a withdraw spring, wherein the lock arm is biased away from the second taper unit.

19. The pump head of claim 11 , wherein the elastic C-ring defines a first elastic taper C-ring side adjacent the first taper unit and a second elastic taper C-ring side adjacent the second taper unit.

20. The pump head of claim 11 , wherein the grommet is sized to allow the Presta-type valve to extend through the first and second portion of the grommet.

Assignees

• Bell Sports Inc

Inventors

• Park Stephen C
• Chan Andy Yu Sang

Classifications

• F04B39/10

  Adaptations or arrangements of distribution members · CPC title

• B60S5/043 Primary

  characterised by the inflation control means or the drive of the air pressure system · CPC title

• F04B33/005 Primary

  specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles · CPC title

• F04B37/10 Primary

  for special use (for evacuating by absorption or adsorption F04B37/02; for evacuating by thermal means F04B37/06) · CPC title

• F04B39/00

  Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 · CPC title