Light emitting pen actuated by pivotally rotating a clip

A light emitting pen actuated by pivotally rotating a clip includes an upper pen tube and a lower pen tube. A base at an upper end of the upper pen tube has a slot. The clip is buckled into the slot. The clip is an eccentric block. The eccentric block is pivotally installed in the slot by using a stud. A top stud of the switch button protrudes from a central round hole of the base. A top of the top stud resists against the eccentric block of the clip. When the clip pivotally rotates upwards, the switch button descends to contact the light emitting device to light up. The light emitting device moves downward to cause the refill moves downwards. Then a tip of the refill protrudes out of the pen tube. When the clip pivotally rotates, the light emitting body does not light up and the tip embeds into the pen tube.

FIELD OF THE INVENTION

The present invention relates to light emitting pens, and particularly to a light emitting pen actuated by pivotally rotating a clip.

BACKGROUND OF THE INVENTION

Currently, power switches of light emitting pens include switch button, rotation switch, and touch press. The switch button pen is that a pressable switch is installed at a top end or near an upper end of the pen tube, and the pressable switch can be pressed by fingers. After pressing the switch button, the light emitting pen lights up. In the rotation switch light emitting pen, if the upper pen tube is rotated, then the pen lights up. In the touch press light emitting pen, when the tip of the refill touches a surface of a paper, the refill rises to trigger a light emitting body to light up.

In above mentioned prior art, the refill and the light emitting body are independent. That is to say, the lighting up of the light emitting body has no relation to the movement of the tip with respect to the refill. The light up of the light emitting body is controlled directly by a power switch. The movement of the pen tip of the refill with respect to the refill is by pressing a hat portion at the top of the pen or rotating the pen tube. Thereby, the operations of the pen tip and the light emitting body are independent so that the operation is inconvenient. Thereby, there is an eager demand for a novel design which can improve the defect of the prior art.

SUMMARY OF THE INVENTION

Accordingly, the primary object of the present invention is to provide a light emitting pen actuated by pivotally rotating a clip. The pen comprises an upper pen tube and a lower pen tube. The upper pen tube includes a pen tube, a switch button in the pen tube, and a light emitting device in the pen tube and below the switch button. The lower pen tube includes cylinder, a refill in the cylinder, a conduit resisting against a bottom of the light emitting device for receiving the refill; and a resilient spring enclosing the refill.

A base is at an upper end of the upper pen tube. The base has a slot. One end portion of the clip is buckled into the slot; the end portion of the clip is an eccentric block. The eccentric block is pivotally installed in the slot by using a stud. A top stud of the switch button protrudes from a central round hole of the base. A top of the top stud resists against the eccentric block of the clip. When the clip pivotally rotates upwards, the eccentric block presses the top stud so that the switch button descends to contact the light emitting device to cause a light emitting body in the light emitting device lights up. Then, the light emitting device moves downward to cause the refill moves downwards. Then a tip of the refill protrudes out of the pen tube. When the clip is pivotally rotated, the light emitting body does not light up and the tip embeds into the pen tube.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring toFIG. 1, the exploded perspective view of the light emitting pen actuated by pivotally rotating a clip of the present invention is illustrated. In the drawing, the pen1of the present invention includes an upper pen tube1A and a lower pen tube1B. A light emitting pen actuated by pivotally rotating a clip is formed by assembling the upper pen tube1A and lower pen tube1B. The upper pen tube1A includes a pen tube5, a switch button2in the pen tube5, and a light emitting device3in the pen tube5and below the switch button2. The lower pen tube1B is formed by a cylinder6, a refill4in the cylinder6, a conduit7in contact with a bottom of the light emitting device3and receiving a top portion of the refill4; and a series of resilient springs below the refill4. A refill4is integrally formed with the conduit7. A liner tube9is installed in the pen tube6. The refill4, conduit7, and resilient spring8are placed in the liner tube9.

The feature of the present invention will be described herein. An upper end of the pen tube5of the upper pen tube1A has a base12. The base12has a slot121. A clip11is engaged to an end portion of the slot121. The end portion of the clip11is an eccentric block111. The eccentric block111is pivotally installed in the slot121by using a stud13. A top stud21of the switch button2protrudes out of a central round hole122in the slot of the base12. A top of the switch button2resists against the eccentric block111. The structure after assembly is illustrated in FIG.2.

In above description, the structure of the clip3is illustrated in FIG.3. The clip11is a cambered arm. One end of the clip11is an eccentric block111and another end of the clip11is an ear portion116resisting against the outer wall of the pen tube5. The eccentric block111is a semi-round block. A lower end of the eccentric block111has an eccentric axial hole112and an upper end of the eccentric block111has a trapezoidal shape recess113. A bottom end of the eccentric block111has a flat surface114and a cambered stop wall115connected to the fuel flat surface114. The flat surface114and the cambered stop wall115are formed as a triangular recess11a(as the dashed line shown).

Moreover, the slot121of the base is received in the eccentric block111. A stud13inserts into the eccentric axial hole112from two sides of the base12so as to combine the clip11with the base12. Thereby, the clip11is able to rotate around the stud13.

Next, from the cross section view ofFIG. 5, it is illustrated that the pen tube5of the upper pen tube1A has sequentially a switch button2, a liftable clutch shaft22, a conductive spring23and a light emitting device3(installed with light emitting body31and battery set32therein), etc. Since the push and brake structure of the upper pen tube1A is known in the prior art and thus the details will not described herein. It should be noted that a top stud21of the switch button2protrudes out of the central round hole122of the base12. The top of the top stud21is in contact with the flat surface114of the eccentric block111as the clip11is clamped.

FIG. 5shows a cross section view that the clip11dose not act. It is known from the drawing that when the switch button2is not pressed. By the pushing force of the conductive spring23and the resilient spring8or other expandable spring (not shown, it can enclose the top stud23), the upper end of the top stud21resists against a flat surface114at the lower side of the eccentric block111so that the clip11can be retained at the opening of a pocket firmly.

Referring toFIG. 4, the schematic view of the present invention is illustrated. It is illustrated that when the clip11rotates upwards through 180 degrees, the lower pen tube1B of the light emitting pen1will light up (the upper pen tube1A does not light up). At the same time, the tip41of the refill4protrudes out of the cylinder6. Therefore the user can use the pen at night.

With reference toFIG. 6, when the clip11rotates around the eccentric axial hole112, the eccentric block111will press the switch button2so that the clutch shaft22at the lower end of the switch button2presses a top surface of the light emitting device3to conduct and thus the light emitting body31lights up. Light radiates out from the transparent cylinder6. An upper side of the light emitting device3is pressed by the switch button2to move downwards. Thereby, the conduit7and the refill4below the light emitting device3will move downwards and thus the tip41of the refill4protrudes out of the cylinder6.

When the clip11rotates upwards to an orientation which cause the light emitting device3and the tip41protrude out, the recess113of the eccentric block111will buckle a top edge of the top stud21of the switch button2so as to prevent the clip11to move over a desired extend. Moreover, in this orientation, the elastic forces from conductive spring23below the switch button2and resilient spring8and the force from the user can not to resilient the clip11. Thereby, it is unnecessary to worry about that the clip11will return so that the tip41is embedded into the cylinder6.

When fingers move the clip11downwards slightly so that the cambered portion of the eccentric block111is over one half (about returns through 60 degrees), the clip11rapidly returns by the actions of the springs23and8.

Advantages of the present invention will be described here. Before moving the clip, the clip can be preferred clamping force by the springs in the switch button and below the refill. When the clip rotates upwards, the light emitting pen actuated by pivotally rotating a clip lights up and light radiates from the lower pen tube so that the user can use the pen at night. The operation is easy and the user can only use only thumb to rotate the clip so as to control the protrusion action of the light emitting body and tip of the refill. Moreover, when the clip is pressed downwards, the light emitting body will not light up and the tip embeds into the pen tube.