JP3142799U - Automatic protruding pencil - Google Patents

Abstract

An automatic propulsion type pencil is provided.
An automatic push-out type pencil is provided with a spare pen lead tube in a pen bar, and when the pen lead is placed in an overlapping manner, the pen lead in the original pen stick is smoothly put out. And the pen nib won't clog. This structure mainly consists of a pen head, a pen bar, a pinch device, an elastic element, a conduit, and a pen core cylinder, the pen head is fixed to the bottom end of the pen bar, and the upper end is connected to the pinch device and is elastic. The elements are connected, and a conduit is inserted at the upper end. When the pen core is inserted from the guiding arc surface on the conduit, the pen core is inserted into the upper end of the pen core so that the pen core is pressed against the clamping device to ensure smooth pressure control of the pen core. Due to the elastic element, when the conduit is not subjected to the pressure control of the pen core cylinder, it can be lifted to maintain a certain distance from the pen core on the clamping device, and another pen core can be inserted, and several pen cores can be inserted in the pen core cylinder. A spare pen core can be inserted.
[Selection] Figure 3

Description

  The present invention relates to a self-extrusion pencil, which mainly has an elastic element installed between the pen tip clamping device and the conduit, and a replaceable pen core cylinder at the top end. The present invention relates to a self-extruding pencil that stably controls the core vertically.

As shown in FIG. 1, a known protruding pencil has a hollow pen bar 1 and a bottom end connecting a pen head 10. A pen tip 11 is installed at the center of the pen head 10, and the pen head 10 extends a sleeve 100 and is positioned as a pen bar. The pen nib 11 is provided with a bundle ring 110 and pulls the pen core 12 by the action of frictional force. On the nib 11, there is a pinching device, which is composed of two semicircular pinching pieces 13. The bottom end extends into the tank at the top end of the nib 11 and a spring 14 is installed to move the nib 11 up and down. A concave arc 131 is installed below the clamping piece 13 to place the ball 15 and to be coupled to the inner ring wall of the inner sleeve 16. An upper portion of the inner sleeve 16 has a conduit 17, the uppermost end is closed using a lid 18, and an eraser 181 is installed at the top end.

  When the pen nib 12 is placed down from the conduit 17 and reaches the pinching piece 13, the writing action squeezes the nib 11 and automatically pushes out the pen nib 12 without pushing or operating anything. Can be written and can be continued, so it is convenient to use. However, since the pen core of the known protruding pencil is long and there is no device for moving the pen core down when placing the long pen core into the conduit 17, the pen bar 1 is swung and the pen core 12 is sandwiched. The spring 14 is compressed by sliding down the control piece 13 and then the pen tip 11 is compressed, the pen tip 11 is contracted in the pen bar 1, the applied force is released, and the restoring force of the spring 14 is restored. Thus, the pen nib 11 protrudes from the pen head 10 and, at the same time, when the pen nib is pulled out a certain distance and overlapped several times, the pen nib 12 is projected and can be used.

  Whether or not the conduit 17 in the pen bar 1 has the pen core 12 cannot be determined by looking at the appearance of the pen bar 1 and cannot be determined how much it has been written. When another pen lead 12 is placed, it stops at the guide hole 19 and the pen lead 12 breaks and becomes clogged, and the pen tool cannot be used.

  In addition, since no pen core cylinder is installed in the pen bar 1, a spare pen core cannot be prepared in the pen bar, which is inconvenient to carry.

The object of the present invention is to smoothly push out the original pen lead into the pen bar when the pen lead is placed in an overlapping manner, so that the pen lead is not clogged. The object is to provide an automatically protruding pencil capable of installing a pen core.

  The improved structure of the self-extruding pencil of the present invention includes a pen head, a pen bar, a pinching device, an elastic element, a conduit, and a pen core tube. The pen head is fixed to the bottom end of the pen bar, the upper end is connected to the clamping device, the elastic element is connected, and a conduit is inserted into the upper end. When the pen core is placed from the guiding arc surface on the conduit, the pen core cylinder inserted at the upper end is used to suppress the pen core and move it down to the clamping device to ensure smooth pressure control of the pen core. To do.

  With this device, when pens are placed in duplicate, the original pen nib is smoothly pushed out into the pen bar, the pen nib is not clogged, and a spare pen nib is prepared in the pen bar. it can.

  First, FIG. 2 is a three-dimensional external view of the present invention. It mainly comprises a pen bar 2, a pen head 3, a pen core cylinder 4, a clamping device 5 and a conduit 6 in the pen bar 2, and an elastic element 50 thereon. The pen head 3 joins the bottom end of the pen bar 2, the pen tip 30 protrudes from the pen head 3, and the pen core tube 4 at the top end is placed in the hollow interior of the pen bar 2. The structure of the conduit 6 and the clamping device 5 and the elastic element 50 are shown in FIG. The top end of the pen head 3 is connected to the clamping device 5, and after the elastic element 50 is installed in the clamping device 5, the conduit 6 is pierced so that the elastic element is connected to the engaging column 61 of the conduit 6 and the coupling column of the clamping device 5. The elastic element 50 is compressed by moving the pipe 6 on the connecting column 51 while compressing the elastic element 50. In addition, the top end surface of the conduit 6 has a conductive arc surface 62, and a through hole 63 through which the pen core 40 passes is provided at the center. A conducting rod 64 is installed in the conduit 6, and a guiding hole 641 is formed at the bottom end. In addition, the pen core cylinder 4 fits inside the pen bar 2 hollow, forms an end 41 at the upper end, connects the eraser 410 at the top end, and stores the extra pen core in the cylinder by the lid 42 at the bottom end. And reserve it.

  FIG. 4 is a diagram showing design points of the present invention, in which the restraining device 5 and the conduit 6 are coupled to the elastic element 50 and coupled to the pen head 3 and are all installed from the bottom end of the pen bar 2. And then localization. The pen core tube 4 is tubular, the upper end forms a large end head 41, the top end of the pen bar 2 is restrained, an eraser 410 is installed at the upper end of the end head 41, and a lid 42 is installed at the bottom end. The pen core 40 is stably controlled.

  Subsequently, the structure of the pen core cylinder 4 is shown in FIG. 5. The pen core cylinder 4 forms an end head 41, an eraser 410 is installed, the lid 42 can be opened, and a guiding arc surface 421 at the end side. Form. When the lid 42 is removed, the pen core 40 is inserted from the through hole 431 on the pillar 43, and then, when the lid 42 is closed, several pen cores 40 can be carried as spares. When the pen core cylinder 4 is inserted into the top end of the pen bar 2, the user (especially a child) may bite the end of the pen bar into the mouth and break the end head 41 or the eraser 410. (FIG. 6) At this time, it is only necessary to replace the new pen core cylinder 4 without discarding the pen tool.

  In actual use of the present invention, as shown in FIG. 7, the pen core tube 40 is pulled out and detached from the penetrating hole 20 of the pen bar 2, and then inserted into the pen core 40 through the penetrating hole 20. When the core cylinder 4 is inserted and the pen core 40 is pressed by the lid 42, the pen core 40 installation work is completed.

  As shown in FIGS. 8 to 11, when the pen core 40 is inserted into the pen bar 2 (FIG. 8), one end of the pen core 40 is directly connected. The pen 6 is brought into contact with the leading arc surface 62 at the top end of the conduit 6 and the end of the pen core 40 is guided to the through-hole 63 due to the inclination of the guiding arc surface 62 (FIG. 9). When the cover 42 is lowered until it comes into contact with the other end of the pen core 40, the end of the pen core 40 is guided to the center by the guiding arc surface 421 (FIG. 10). 40 is kept vertical and does not shift, so that when applying downward from the upper end, the pen core 40 end that restrains the through-hole 63 of the conduit 6 receives the squeezing force and lowers the conduit 6. When the elastic element 50 is compressed and the conduit 6 cannot be lowered again, the pen core 40 continues to be pressed and penetrates into the guide rod 64 of the conduit 6, and the pinching device Passes through the coupling post 51 in the central through hole, descends Pen'atama 3. The length of the pen nib 40 is set so that the pen nib 40 can be written by protruding the nib 30 when the pen nib cylinder 4 is pressed down to the end, and the pen nib does not protrude the nib 30 or When the protruding pen core 40 finishes writing, the pen tip 30 is suppressed by the writing operation, and the pen core 40 is slowly pulled out by the pressing operation (it will not be described in detail because it is a known structure), so that the pen core 40 is inserted. The pen core 40 can be pushed out and used without being pushed or otherwise operated.

  When the inserted pen lead 40 has been written, or a new pen lead 40 is desired to be placed, as shown in FIG. Disappears in an instant, and the conduit 6 maintains a certain distance from the original pen core 40 due to an increase in the restoring force of the elastic element 50, and another pen core 40 can be placed in this space. Since the pen core 40 that is originally in the pen bar 2 is difficult to aim at the through-hole 63 of the conduit 6 because it has a certain distance from the coupling column 51 of the clamping device 5 when the conduit 6 is under pressure, the present invention The guide rod 64 is installed in the conduit 6, the guide rod 64 is hollow, the top end and the through hole 63 face each other, the bottom end forms a guide hole 641, and the guide rod 64 extends to the end of the pen core 40. When the pressure is lowered, the pen core 40 is introduced into the hollow through the guide hole 641, the guide hole 63 of the conduit 6 is pierced, and the pen core 40 is not broken or clogged. The original pen core 40 is led out to the pen tip 30 and pushed out by the overlapping pressure control operation.

It is sectional drawing of a well-known apparatus. It is a three-dimensional external view of the present invention. It is a three-dimensional exploded view of the present invention. It is a combination structure diagram of the pen lead of the present invention. It is a structural diagram of the pen core of the present invention. It is an exchange figure of the pen core cylinder of this invention. It is an operation | movement figure with which the pen core of this invention is mounted | worn. FIG. 1 is a local view 1 in which a pen core of the present invention is mounted. FIG. 3 is a local view 2 in which the pen core of the present invention is mounted. It is a control state figure which inserts a pen core cylinder at the time of pen core wearing of the present invention. It is a figure which takes out the pen core cylinder of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hollow pen stick 2 Pen stick 3 Pen head 4 Pen core cylinder 5 Nipping device 6 Conduit 10 Pen head 11 Pen tip 13 Nipping piece 14 Spring 15 Ball 16 Inner sleeve 17 Conduit 18 Lid 30 Pen tip 41 End head 42 Lid 43 Column 50 Elastic element 51 Coupling column 61 Engaging column 62 Guide arc surface 63 Through hole 64 Guide rod 100 Sleeve 110 Bundle ring 131 Concave arc 181 Eraser 410 Eraser 421 Guide arc surface 641 Guide hole

Claims (4)

It is an automatic propulsion type pencil mainly composed of a pen head, a pen stick, a pinch device, an elastic element, a conduit, and a pen core cylinder, characterized by connecting an elastic element between the conduit and the pinch device. The self-extruding pencil, wherein the conduit is movable up and down by the clamping device. The self-extrusion pencil according to claim 1, wherein the pen core tube has a lid, and a guiding arc surface is formed on an end surface of the lid. The self-extruding pencil according to claim 1, wherein a guiding arc surface is formed on a top end surface of the conduit and extends to a central through hole. The self-extruding pencil according to claim 1, wherein the conduit has a hollow guide rod, and the guide rod bottom end has a guide hole formed downward.

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