ROTATION AND STOP RETENTION SWITCHING APPARATUS

• US 20150276031A1
• Filed: 02/24/2015
• Published: 10/01/2015
• Est. Priority Date: 03/31/2014
• Status: Abandoned Application

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: SUZUKI, Ryusei, SAKAI, Toshiyuki, IMATOMI, Yasuo, OJI, Yoshihiro
• Application Number:
  US14/630,087
• Publication Number:
  US 20150276031A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E05F 15/622 using screw-and-nut mechanisms
• CPC Class Codes: E05F 5/00 Braking devices, e.g. checks; Stops; Buffers construction of pneumatic or liquid braking devices E05F3/00; braking devices, buffers or end stops on drawers for tables, cabinets or like furniture A47B88/473; combined with devices for holding wings open E05C17/00; devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing E05C17/04
• CPC Class Codes: E05Y 2201/21 Brakes
• CPC Class Codes: E05Y 2900/546 Tailgates
• CPC Class Codes: F16D 2125/36 Helical cams, Ball-rotating ramps
• CPC Class Codes: F16D 67/00 Combinations of couplings and brakes; Combinations of clutches and brakes combinations of couplings and clutches F16D47/02; conjoint control of brake systems and driveline clutches in vehicles B60W10/02, B60W10/18
• CPC Class Codes: F16H 2025/2075 Coaxial drive motors
• CPC Class Codes: F16H 2025/2087 using planetary gears
• CPC Class Codes: F16H 25/2454 Brakes; Rotational locks
• CPC Class Codes: Y10T 74/18704 Means to selectively lock or retard screw or nut

Abstract

A rotation and stop retention switching apparatus includes a rotary member being rotary driven, a slider being movable in an axial direction of a rotary axis of the rotary member, a transmission member transmitting a rotary force of the rotary member to the slider, a biasing member biasing the slider in the axial direction of the rotary axis, and a stopper member coming in contact with the slider being biased by the biasing member. The rotary force of the rotary member is transmitted to the slider via the transmission member in a state where the slider is disengaged from the stopper member by a movement of the slider in the axial direction of the rotary axis, the movement caused by the translational force of the slider with a use of the transmission member against a biasing force of the biasing member.

Claims

1. A rotation and stop retention switching apparatus, comprising:

a rotary member being rotary driven;

a slider being movable in an axial direction of a rotary axis of the rotary member;

a transmission member transmitting a rotary force of the rotary member to the slider and converting the rotary force of the rotary member into a translational force of the slider in the axial direction of the rotary axis;

a biasing member biasing the slider in the axial direction of the rotary axis; and

a stopper member coming in contact with the slider being biased by the biasing member;

wherein;

the rotary force of the rotary member is transmitted to the slider via the transmission member in a state where the slider is disengaged from the stopper member by a movement of the slider in the axial direction of the rotary axis, the movement caused by the translational force of the slider with a use of the transmission member against a biasing force of the biasing member.

2. The rotation and stop retention switching apparatus according to claim 1, wherein the transmission member includes a cam mechanism being provided at the slider and the rotary member.

3. The rotation and stop retention switching apparatus according to claim 2, wherein

the biasing member is formed in a hollow structure, the biasing member extends in the axial direction of the rotary axis;

and

the slider is disposed to be inserted into the biasing member.

4. The rotation and stop retention switching apparatus according to claim 2, wherein

the cam mechanism includes a pin being fixed to one of the rotary member and the slider, the pin extending in a radial direction of the rotary member, the cam mechanism includes a pin receiving portion being disposed at the other of the rotary member and the slider, the pin receiving portion receiving the pin;

the pin receiving portion includes a first retaining portion retaining the pin when the rotary member is not in a rotational state, the pin receiving portion includes a second retaining portion retaining the pin when the rotary member is rotary driven, the pin receiving portion includes a cam path connecting the first retaining portion and the second retaining portion; and

the rotary force of the rotary member is transmitted to the slider via the pin in a state where the slider is disengaged from the stopper member by a movement of the slider in the axial direction of the rotary axis, the movement caused by the pin being retained by the first retaining portion and moving along the cam path to be retained by the second retaining portion when the rotary member is rotary driven.

5. The rotation and stop retention switching apparatus according to claim 2, wherein

the cam mechanism includes a pawl portion being disposed at one of the rotary member and the slider;

the cam mechanism includes a pawl portion receiving portion being disposed at the other of the rotary member and the slider, the pawl portion receiving portion receiving the pawl portion;

the pawl portion receiving portion includes a base portion at which the pawl portion is disposed when the rotary member is not in a rotational state;

the pawl portion receiving portion includes a wall portion with which the pawl portion engages when the rotary member is rotary driven;

the base portion and the wall portion are disposed along a circumferential direction of the rotary member;

the base portion and the wall portion are connected with each other by a cam path; and

the rotary force of the rotary member is transmitted to the slider via the pawl portion in a state where the slider is disengaged from the stopper member by a movement of the slider in the axial direction of the rotary axis, the movement caused by the pawl portion being disposed at the base portion and sliding along the cam path to be engaged with the wall portion when the rotary member is rotary driven.

6. A spindle, comprising:

a rotation and stop retention switching apparatus including

a rotary member being rotary driven;

a slider being movable in an axial direction of a rotary axis of the rotary member;

a transmission member transmitting a rotary force of the rotary member to the slider and converting the rotary force of the rotary member into a translational force of the slider in the axial direction of the rotary axis;

a biasing member biasing the slider in the axial direction of the rotary axis; and

a stopper member coming in contact with the slider being biased by the biasing member;

wherein;

the rotary force of the rotary member is transmitted to the slider via the transmission member in a state where the slider is disengaged from the stopper member by a movement of the slider in the axial direction of the rotary axis, the movement caused by the translational force of the slider with a use of the transmission member against a biasing force of the biasing member; and

a screw being connected to the slider.

7. The spindle including the rotation and stop retention switching apparatus according to claim 6, wherein the transmission member includes a cam mechanism being provided at the slider and the rotary member.

8. The spindle including the rotation and stop retention switching apparatus according to claim 7, wherein

the biasing member is formed in a hollow structure, the biasing member extends in the axial direction of the rotary axis;

and

the slider is disposed to be inserted into the biasing member.

9. The spindle including the rotation and stop retention switching apparatus according to claim 7, wherein

the cam mechanism includes a pin being fixed to one of the rotary member and the slider, the pin extending in a radial direction of the rotary member, the cam mechanism includes a pin receiving portion being disposed at the other of the rotary member and the slider, the pin receiving portion receiving the pin;

the pin receiving portion includes a first retaining portion retaining the pin when the rotary member is not in a rotational state, the pin receiving portion includes a second retaining portion retaining the pin when the rotary member is rotary driven, the pin receiving portion includes a cam path connecting the first retaining portion and the second retaining portion; and

the rotary force of the rotary member is transmitted to the slider via the pin in a state where the slider is disengaged from the stopper member by a movement of the slider in the axial direction of the rotary axis, the movement caused by the pin being retained by the first retaining portion and moving along the cam path to be retained by the second retaining portion when the rotary member is rotary driven.

10. The spindle including the rotation and stop retention switching apparatus according to claim 7, wherein

the cam mechanism includes a pawl portion being disposed at one of the rotary member and the slider;

the cam mechanism includes a pawl portion receiving portion being disposed at the other of the rotary member and the slider, the pawl portion receiving portion receiving the pawl portion;

the pawl portion receiving portion includes a base portion at which the pawl portion is disposed when the rotary member is not in a rotational state;

the pawl portion receiving portion includes a wall portion with which the pawl portion engages when the rotary member is rotary driven;

the base portion and the wall portion are disposed along a circumferential direction of the rotary member;

the base portion and the wall portion are connected with each other by a cam path; and

the rotary force of the rotary member is transmitted to the slider via the pawl portion in a state where the slider is disengaged from the stopper member by a movement of the slider in the axial direction of the rotary axis, the movement caused by the pawl portion being disposed at the base portion and sliding along the cam path to be engaged with the wall portion when the rotary member is rotary driven.