Adjustment pen

Patent metadata

Field	Value
Publication number	US-10983374-B2
Application number	US-201816303826-A
Country	US
Kind code	B2
Filing date	Mar 22, 2018
Priority date	Mar 31, 2017
Publication date	Apr 20, 2021
Grant date	Apr 20, 2021

Abstract

An adjustment pen, including a pen body, the pen body including a pen tip, wherein the adjustment pen further includes a light emitting unit, a control switch and a power supply module which are carried by the pen body, the light emitting unit is connected with the control switch and the power supply module to form an illumination circuit, the control switch is configured to control ON and OFF of the illumination circuit, and the light emitting unit is configured to emit a light beam toward the pen tip.

First claim

The invention claimed is:

1. An adjustment pen, comprising a pen body, the pen body comprising a pen tip, wherein the adjustment pen further comprises a light emitting unit, a control switch, and a power supply module which are carried by the pen body, the light emitting unit is connected with the control switch and the power supply module to form an illumination circuit, the control switch is configured to control ON and OFF of the illumination circuit, and the light emitting unit is configured to emit a light beam toward the pen tip,
wherein the pen body comprises a pen handle, the pen handle has a cavity, the control switch comprises an actuator partially or entirely protruding from an outer surface of the pen handle, a transmission mechanism disposed in the cavity and connected with the actuator, and a contact switch located in the cavity and connected with the transmission mechanism,
the actuator is configured to drive the transmission mechanism to move relative to the pen handle, so that the contact switch switches between a closed state and an opened state in response to a change of state of connection with the illumination circuit,
the contact switch comprises a first metal sheet connected to the transmission mechanism, and a second metal sheet and a third metal sheet connected to the illumination circuit, and in response of the contact switch being in the closed state, the first metal sheet is in contact with the second metal sheet and the third metal sheet.

2. The adjustment pen according to claim 1 , wherein the pen body comprises a pen shank, one end of the pen shank is fixedly connected to the pen handle, and the pen tip is located on the other end of the pen shank, and the light emitting unit, the control switch, and the power supply module are all carried by the pen handle.

3. The adjustment pen according to claim 1 , wherein the transmission mechanism is a telescoping mechanism.

4. The adjustment pen according to claim 3 , wherein the actuator is a button,
the telescoping mechanism comprises a first ratchet and a second ratchet, and a ratchet sleeve disposed around the second ratchet, the button is connected to the first ratchet, the second ratchet is connected to the contact switch, the first ratchet and the second ratchet have collinear axes and are both configured to be movable within the ratchet sleeve in an axial direction, opposite sides of the first ratchet and the second ratchet are provided with a plurality of teeth in the axial direction, the plurality of teeth of the first ratchet are meshed with the plurality of teeth of the second ratchet, a plurality of guide slots spaced apart from each other are provided in an inside wall of the ratchet sleeve in the axial direction, one end of the ratchet sleeve facing away from the button is provided with a serration edge, an axial distance between a bottom of a serration slot of the serration edge and an end face of the ratchet sleeve proximate to the button is d, and an axial distance between one end of a guide slot proximate to the button and the end face of the ratchet sleeve proximate to the button is m, wherein d>m, the second ratchet has a guide rib thereon which is slidable along the guide slot, and the first ratchet is configured to slide in the axial direction of the ratchet sleeve,
the telescoping mechanism further comprises a spring, a first end of the spring is connected to the second ratchet, and a second end of the spring is connected to a wall surface of the cavity, and the spring is extendable and contractible in the axial direction of the ratchet sleeve.

5. The adjustment pen according to claim 4 , wherein the button pushes the second ratchet to slide out of the guide slot through the first ratchet, and to rotate by an action of the teeth of the first ratchet, so that the guide rib is snapped into the serration slot of the serration edge, and the spring is in a compressed state, the button pushes the second ratchet to slide out of the serration slot of the serration edge through the first ratchet again, and to rotate, so that the guide rib enters into the guide slot, and the button, the first ratchet, and the second ratchet are reset by an action of the spring.

6. The adjustment pen according to claim 4 , wherein the spring is disposed around the second ratchet, the first end of the spring abuts against the first metal sheet, and the second end of the spring abuts against a flange provided on the wall surface of the cavity.

7. The adjustment pen according to claim 2 , wherein the light emitting unit is positioned on the pen handle.

8. The adjustment pen according to claim 7 , wherein the light emitting unit is positioned on a surface of the pen handle on a side proximate to the pen tip.

9. The adjustment pen according to claim 1 , wherein a number of the light emitting unit is at least two, and the at least two light emitting units are uniformly arranged with respect to the pen body.

10. The adjustment pen according to claim 1 , wherein the pen body comprises a first half-shell and a second half-shell, which are detachably connected with each other.

11. The adjustment pen according to claim 10 , wherein the first half-shell and the second half-shell are detachably connected with each other by a screw.

12. The adjustment pen according to claim 2 , wherein the transmission mechanism is a telescoping mechanism.

13. An adjustment pen, comprising a pen body, the pen body comprising a pen tip, wherein the adjustment pen further comprises a light emitting unit, a control switch, and a power supply module which are carried by the pen body, the light emitting unit is connected with the control switch and the power supply module to form an illumination circuit, the control switch is configured to control ON and OFF of the illumination circuit, and the light emitting unit is configured to emit a light beam toward the pen tip,
wherein the pen body comprises a pen handle, the pen handle has a cavity, the control switch comprises an actuator partially or entirely protruding from an outer surface of the pen handle, a transmission mechanism disposed in the cavity and connected with the actuator, and a contact switch located in the cavity and connected with the transmission mechanism,
the actuator is configured to drive the transmission mechanism to move relative to the pen handle, so that the contact switch switches between a closed state and an opened state in response to a change of state of connection with the illumination circuit,
the transmission mechanism is a telescoping mechanism,
the actuator is a button,
the telescoping mechanism comprises a first ratchet and a second ratchet, and a ratchet sleeve disposed around the second ratchet, the button is connected to the first ratchet, the second ratchet is connected to the contact switch, the first ratchet and the second ratchet have collinear axes and are both configured to be movable within the ratchet sleeve in a axial direction, opposite sides of the first ratchet and the second ratchet are provided with a plurality of teeth in the axial direction, the plurality of teeth of the first ratchet are meshed with the plurality of teeth of the second ratchet, a plurality of guide slots spaced apart from each other are provided in an inside wall of the ratchet sleeve in the axial direction, one end of the ratchet sleeve facing away from the button is provided with a serration edge, an axial distance between a bottom of a serration slot of the serration edge and an end face of the ratchet sleeve proximate to the button is d, and an axial distance between one end of a guide slot proximate to the button and the end face of the ratchet sleeve proximate t

Assignees

• Boe Technology Group Co Ltd
• Hefei Xinsheng Optoelectronics Technology Co Ltd

Inventors

• Wang Lei
• Wang Weiwei
• Li Chunli
• Zhu Liming
• Ding Kaibin

Classifications

• B43K24/084

  with saw-like or analogous cams · CPC title

• B43K21/22

  Writing-cores gripping means, e.g. chucks · CPC title

• B43K7/005 Primary

  Pen barrels · CPC title

• B43K21/24

  Assembling, finishing, or repairing propelling pencils (making pencil writing-cores B43K19/18) · CPC title

• B43K24/02

  for locking a single writing unit in only fully projected or retracted positions · CPC title