Multi-function sit-up apparatus

• US 8,043,198 B2
• Filed: 11/26/2008
• Issued: 10/25/2011
• Est. Priority Date: 01/18/2008
• Status: Expired due to Fees

• Current Assignee: Xiamen Zhoulong Sporting Goods Co., Ltd.
• Original Assignee: Xiamen Zhoulong Sporting Goods Co., Ltd.
• Inventors: Zhou, Yuzhi
• Primary Examiner(s): BAKER, LORI LYNN
• Application Number:
  US12/323,908
• Publication Number:
  US 20090186749A1
• Time in Patent Office: 1,063 Days
• Field of Search: 482/140, 482/907, 482/139, 482/142, 482/91, 482 92- 93, 482/148, 482121-130
• US Class Current: 482/140
• CPC Class Codes: A63B 21/00069 Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve
• CPC Class Codes: A63B 21/0442 Anchored at one end only, the other end being manipulated by the user
• CPC Class Codes: A63B 21/0552 Elastic ropes or bands
• CPC Class Codes: A63B 21/0557 Details of attachments, e.g. clips or clamps
• CPC Class Codes: A63B 21/154 using special pulley-assemblies
• CPC Class Codes: A63B 21/156 the position of the pulleys being variable, e.g. for different exercises
• CPC Class Codes: A63B 21/4029 Benches specifically adapted for exercising for bench press exercises A63B21/078
• CPC Class Codes: A63B 21/4035 for operation by hand
• CPC Class Codes: A63B 21/4043 Free movement, i.e. the only restriction coming from the resistance A63B21/00043, A63B21/072 take precedence
• CPC Class Codes: A63B 2208/0233 in 90/90 position, like on a chair
• CPC Class Codes: A63B 23/0211 moving torso with immobilized lower limbs
• CPC Class Codes: A63B 23/03541 Moving independently from each other A63B22/00 takes precedence
• CPC Class Codes: A63B 23/1245 Primarily by articulating the shoulder joint A63B23/129 takes precedence
• CPC Class Codes: A63B 23/1254 Rotation about an axis parallel to the longitudinal axis of the body, e.g. butterfly-type exercises
• CPC Class Codes: A63B 69/0062 Leg restraining devices

Abstract

A multi-function sit-up apparatus includes a frame, a seat and a back pad. The seat and the back pad are disposed on the frame. The back of the back pad is provided with a pair of arm pull devices. By the arm pull devices, the user sits on the seat and lies on the back pad with his/her hands to pull the pull handles to strengthen the abdominal muscles, arms and pectoral, providing a multi-function exercise effect.

Claims

1. A multi-function sit-up apparatus, comprising a frame, a seat and a back pad, the seat and the back pad being disposed on the frame, the back of the back pad being provided with a pair of arm pull devices, wherein each of the arm pull devices comprises a support board, a resilient rope and a pull handle, the support board having an inner end pivoted to the back of the back pad and an outer end provided with a pulley, the resilient rope having a first end secured to the support board and a second end striding the pulley to be connected with the pull handle, the back of the support board is provided with a plurality of retaining bases, the support board having inner and outer ends provided with pulleys, the front of the support board being provided with a connecting base, the connecting base being provided with a pulley, the resilient rope having the first end connected to one of the retaining bases and the second end striding the pulleys on the inner and outer ends of the support board and the pulley of the connecting base to be connected with the pull handle.

2. The multi-function sit-up apparatus as claimed in claim 1, wherein the first end of the resilient rope is provided with a hook to be hooked on one of the retaining bases.