Apparatus for adjusting seat height of vehicle

• US 8,789,804 B2
• Filed: 06/20/2011
• Issued: 07/29/2014
• Est. Priority Date: 06/21/2010
• Status: Expired due to Fees

• Current Assignee: Han Il E-Hwa Co., Ltd.
• Original Assignee: Han Il E-Hwa Co., Ltd.
• Inventors: Shin, Chun-Ho
• Primary Examiner(s): MARSH, STEVEN M
• Application Number:
  US13/704,740
• Publication Number:
  US 20130126684A1
• Time in Patent Office: 1,135 Days
• Field of Search: 248/157, 248/421, 248/422, 248/423, 248/424, 248/425, 248/429, 248/430, 297/344.1, 297/344.11, 297/344.12, 297/344.13, 297/344.14, 297/344.15
• US Class Current: 248/422
• CPC Class Codes: B60N 2/0228 Hand-activated mechanical switches B60N2/0229 takes precedence
• CPC Class Codes: B60N 2/1665 Hydraulic or pneumatic actuation
• CPC Class Codes: B60N 2/502 attached to the base of the seat B60N2/504 takes precedence
• CPC Class Codes: B60N 2/505 Adjustable suspension including height adjustment
• CPC Class Codes: B60N 2/508 Scissors-like structure
• CPC Class Codes: B60N 2/525 using gas

Abstract

Disclosed is an apparatus for adjusting a seat height of a vehicle, comprising a height adjusting lever engaged in a gear tooth structure with a height adjusting pivot and changing the gear tooth engagement structure by means of the upward and downward rotations, a height adjusting cable rotating along a cable guide by means of the upward and downward rotations of the height adjusting lever and a rotor connected with the height adjusting cable for thereby selectively pressurizing an air injection pin or an air discharge pin of a control valve depending on the rotation direction of the height adjusting cable, and adjusting an amount of air in an interior of an air spring which is connected with the control valve and adjusts the height of the seat, so the height can be conveniently adjusted, and the riding quality can be improved, and the manufacture cost can be saved.

Claims

1. An apparatus for adjusting a seat height of a vehicle, comprising:

a height adjusting lever (110) engaged in a gear tooth structure with a height adjusting pivot (111) and changing an engaged structure of the gear tooth with the aid of an upward and downward rotations;

a height adjusting cable (120) inserted in a cable insertion groove (114) formed at an inner side surface of the height adjusting lever (110) and rotating along a cable guide (115) with the aid of the upward and downward rotations of the height adjusting lever (110); and

a rotor connected with the height adjusting cable (120) for thereby selectively pressurizing an air injection pin (230) or an air discharge pin (240) of a control valve (200) depending on the rotation direction of the height adjusting cable (120), and adjusting an amount of air in an interior of an air spring (300) which is connected with the control valve (200) and adjusts the height of the seat,

wherein the height adjusting lever (110) is connected with a shaft (116) of the height adjusting pivot (111) using a lever spring (112) and a spring stopper (113).

2. The apparatus of claim 1, wherein the engaged structure of the gear tooth is formed as a plurality of height adjusting stages between the height adjusting pivot (111) and the height adjusting lever (110).

3. The apparatus of claim 2, wherein a length of the height adjusting cable (120) rotating along the cable guide (115) is determined by an interval of the height adjusting stages adjusted by the rotation of the height adjusting lever (110).

4. An apparatus for adjusting a seat height of a vehicle, comprising:

a height adjusting lever (110) engaged in a gear tooth structure with a height adjusting pivot (111) and changing an engaged structure of the gear tooth with the aid of an upward and downward rotations;

a height adjusting cable (120) inserted in a cable insertion groove (114) formed at an inner side surface of the height adjusting lever (110) and rotating along a cable guide (115) with the aid of the upward and downward rotations of the height adjusting lever (110); and

a rotor connected with the height adjusting cable (120) for thereby selectively pressurizing an air injection pin (230) or an air discharge pin (240) of a control valve (200) depending on the rotation direction of the height adjusting cable (120), and adjusting an amount of air in an interior of an air spring (300) which is connected with the control valve (200) and adjusts the height of the seat,

wherein the rotor comprises;

a arm rod (130) pushed or pulled by the height adjusting cable (120) depending on the rotation of the height adjusting lever (110) and rotated by a pushing or pulling operation of the height adjusting cable (120); and

a push rod (140) engaged with a rotary shaft of the arm rod (130) and pressurizing respectively the air injection pin (230) and the air discharge pin (240) of the control valve (200) depending on the rotation of the arm rod (130).

5. The apparatus of claim 4, wherein the push rod (140) comprises:

an upper push rod (141) pressurizing the air injection pin (230) provided in an upper side of the control valve (200) depending on a clockwise rotation of the arm rod (130) by means of the pulling operation of the height adjusting cable (120); and

a lower push rod (142) pressurizing the air discharge pin (240) provided in an lower side of the control valve (200) depending on a counterclockwise rotation of the arm rod (130) by means of the pushing operation of the height adjusting cable (120), and wherein the upper push rod (141) and the lower push rod (142) are respectively engaged with the rotary shaft of the arm rod (130).

6. The apparatus of claim 5, wherein the upper push rod (141) and the lower push rod (142) are connected by way of a push rod spring (143), and the push rod spring (143) receives a rotational force of the arm rod (130), so the upper push rod (141) pressurizes the air injection pin (230), and the lower push rod (142) pressurizes the air discharge pin (240).