JP3000683U - Input pen - Google Patents

Abstract

(57) [Abstract] [Purpose] If the spherical key-pressing part becomes worn, it can be replaced immediately with a new one, and the structure is simplified to reduce The aim is to enable efficient production at a cost, and to be able to immediately switch between input and writing. [Structure] A synthetic resin preliminarily press-fitted and supported at the tip of the hollow pipe 4 by inserting a hollow pipe 4 in an axial direction in a cylindrical pen case 1 having a tip opening 2 so that the hollow pipe 4 can be inserted and removed freely. By adopting a configuration in which the input chip 3 having the key pressing portion 15 formed in a tapered and spherical shape at the tip is made to project from the tip opening 2 of the pen case 1, the key pressing portion 15 can be used for a long period of time. When worn, the input chip 3 can be easily replaced with a new one, and the structure is much simpler than that of the conventional product and can be manufactured at low cost.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is an input operation of a keyboard provided with a plurality of keys of electronic devices such as a computer, a calculator, and a word processor, particularly an input operation of a keyboard arranged in a fine pattern that is difficult to operate with a fingertip. It relates to the input pen used for.

[0002]

[Prior art and its problems]

 In recent years, electronic devices equipped with multiple keys have been made compact so that they can be easily carried in small items such as small bags for portable use. It is arranged in a fine pattern that is difficult to operate. Therefore, in recent years, there is an increasing tendency to operate the keyboard using the tip of a writing instrument or the like.

Therefore, conventionally, there is known a keyboard operation input pen that is arranged in a fine pattern that is difficult to operate with a fingertip, for example, a keyboard operation input pen developed so that a keyboard can be easily operated, for example, Jikken Sho 59-. The input pens disclosed in No. 29235 (hereinafter, Prior Example A), Jitsuko Sho-6-659 (hereinafter, Prior Example B), and Jitsuko 61-42873 (hereinafter, Prior Example C) are known. ing.

However, the input pens described in any of the prior art Nos. A, B, and C cannot be easily removed from the pen case. That is, since the input chip is integrally incorporated into the pen case in a state where it cannot be easily removed, part of the tip key pressing part of the input chip, which is formed spherically over a long period of time, wears flat. In such cases, it was impossible to remove only the input chip from the pen case and replace it with a new input chip, and it had to be discarded together with the pen case.

However, the input pen described in the prior art No. A has an input tip having a stopper ring for preventing slipping out near the rear end in the front hole of the front pen body that opens the rear part of the pen case. The front of the rear pen body of the pen case, in which the (input pen shaft) is fitted and the small-diameter rod portion having an annular groove provided at the rear end of the same input tip is fitted and connected to the rear opening of the front pen body. Part is fitted and connected to a steel ball retainer that is fitted and mounted together with the pen spring, the steel ball is fitted and mounted in the annular groove provided in the rod portion, and the steel ball is biased by the pen spring in the direction of the annular groove. By doing so, since the input chip is elastically incorporated and mounted in the pen case, it cannot be easily removed from the pen case when the tip key pressing portion of the input chip is worn. Moreover, since the structure is complicated, there were problems such as poor productivity and high cost.

In the input pen described in the prior art B, an input tip (pen tip) is mounted on the tip of a supporting rod through a leaf spring member, and the supporting rod is protruded from the tip. The input tip is inserted by inserting it axially into a cylindrical pen case (pen holder) with it supported, and supporting the rear end of the support rod with an elastic support member such as a leaf spring provided in the pen case. Since it is elastically incorporated and mounted in the pen case, it cannot be easily removed from the pen case when the tip key pressing part of the input chip becomes worn.

Further, the input pen described in the prior art example C has a key pressing part (sphere) through an elastic operating rod formed in a thin rod shape at the tip of a cap that is detachably attached to the tip of a pen case. ) Is fixed. That is, in the case of the input pen of the preceding example No. C, by attaching it to the tip of the pen case when it is not used as the original writing tool, a spherical key is pressed on the cap itself that protects the writing body such as a pen protruding from the tip. However, since the cap and the pen case form a pair with each other, the key pressing part is worn when the key pressing part is worn. It is not possible to replace only the cap with the key pressing part with a new one.

[0008] Therefore, in the input pen of the prior art example C, when the key pressing portion is worn, the pen case itself, which has a higher manufacturing cost than the cap having the key pressing portion, cannot be used. Therefore, it was not suitable for practical use.

By the way, if a part of the key pressing portion formed in a spherical shape is worn flat, the key board becomes unstable in hitting the key itself, and accurate input cannot be performed. Also, there is a risk that the corner surface (etch) formed in the sakai between the spherical surface portion and the worn flat portion may scratch the surface of the key.

[0010]

[Problems to be solved by the device]

 The present invention has been made in view of such conventional circumstances. As a first object, if the key pressing portion formed in a spherical shape is worn, it can be immediately replaced with a new one. Another object of the present invention is to provide an input pen which is improved and has a structure that is simplified and can be efficiently manufactured at low cost. The second purpose is to provide an improved input pen so that switching between input and writing can be done immediately.

[0011]

[Means for achieving the object]

 The technical means taken by the present invention to achieve the above-mentioned object are a cylindrical pen case having a tip opening, a hollow pipe which is inserted into the pen case so as to be detachable in the axial direction, and An input tip that is press-fitted and supported at the tip and protrudes from the tip opening of the pen case, and the input tip has a key pressing portion that is molded from synthetic resin and is formed into a tapered spherical surface. And

Further, a tail plug is detachably screwed to the rear end opening of the above-mentioned pen case, and the rear end of the hollow pipe is detachably fitted and held in the tail plug so that the tail pipe is attached to the tip of the hollow pipe. The gist is that the input tip that is press-fitted and supported is supported so as to project outward from the tip opening of the pen case.

Further, a cylindrical pen case having a front end opening and a guide groove which is removably connected to the rear end opening of the pen case and extends in the axial direction are provided at two points on the outer circumference of the shaft which stand upright. And a slide piece that is inserted into the pen case in the axial direction and that is slidably attached to the rear end of the pen case in the axial direction by the corresponding one of the guide grooves. And two input hollow pipes, and a ball-point pen element that is press-fitted and supported at the tips of the two hollow pipes and alternately protrudes and retracts from the tip opening of the pen case by alternate movement of the slide pieces. A writing tip and an input tip having a guide and a guide piece surrounding the guide so as to be rotatable around the guide at a constant angle, and by the forward rotation and the reverse rotation, the slide piece and the insertion piece of the writing tip are inserted. The input tip is made of synthetic resin and is composed of a cylindrical actuating cam having a cam guide surface that engages with both slide pieces so that the slide pieces of the force tip are alternately moved in the axial direction. The key point is to have a key pressing portion that is formed into a tapered and spherical shape at the tip.

Further, in the above-mentioned pen case, the writing tip having a ballpoint pen element is replaced with a writing hollow pipe for supporting the tip, and a writing tip having a knock type mechanical pencil element is fitted and supported at the tip. Insert the writing hollow pipe in the axial direction together with the input hollow pipe that inserts and supports the input tip at the tip, and at the tip, the key pressing part formed of synthetic resin and formed into a tapered spherical surface is formed. The writing tip having a mechanical pencil element alternately alternates with the input tip, and the writing tip protrudes freely from the tip opening of the pen case. The writing tip is rotatable around the guide at a constant angle and moves back and forth in the axial direction. The guide is movably surrounded, and the slide piece of the writing chip and the slide piece of the input chip are alternately moved in the axial direction by the forward rotation and the reverse rotation. Reciprocal movement in the axial direction of a cylindrical actuating cam having a cam guide surface on the lower end edge surface that engages with both slide pieces causes the writing tip to slide through the slide piece of the writing tip that engages with the cam slide surface. The gist is that it is configured so that it is transmitted and the lead is delivered.

[0015]

According to the technical means described in claim 1 of the present invention, the synthetic resin input tip protruding from the tip opening of the pen case is formed in a tapered and spherical shape. By having the key pressing portion at the tip, each key arranged in a fine pattern can be pressed accurately for input. And if part of the tip key pressing part of the input tip wears flat due to long-term use, it can be easily removed by pulling it out of the pen case together with the hollow pipe. By inserting a hollow pipe for press-fitting support into the pen case, it can be attached by protruding from the tip opening of the pen case. By supporting the input tip by pressing it into the tip of the hollow pipe, it can be attached to the tip opening of the pen case while protruding from the tip opening, greatly simplifying the structure and improving productivity. Therefore, it is possible to obtain the effect that it can be manufactured at low cost.

Further, according to the technical means of the second aspect, by removing the tail plug from the rear end of the pen case, the input chip can be pulled out together with the hollow pipe from the pen case, and the input chip is replaced. It is possible to obtain the effect that can be performed more easily.

Further, according to the technical means as claimed in claim 3, the input cam is engaged with the cam guide surface of the operating cam by rotating the operating cam in the reverse direction by a certain angle at the time of input to the keyboard. For example, the slide piece of the input tip connected and connected through a hollow pipe for input is pushed by the cam guide surface and guided by the guide groove to move linearly forward in the axial direction to move the input tip to the tip of the pen case. The input chip, which is made of synthetic resin and protrudes from the opening and has a spherical key pressing part at the tip, enables input to the keyboard. Then, when writing, by rotating the actuating cam in the forward direction by a certain angle, the slide piece of the writing tip connected and connected through the hollow pipe for writing engaging with the cam guide surface of the actuating cam is moved. The writing tip is pushed by the cam guide surface and guided by the guide groove to move linearly forward in the axial direction, and the writing tip is projected from the tip opening of the pen case to enable writing with the writing tip having the ballpoint pen element. At this time, the slide piece of the input tip is guided by the guide groove in response to the rotation of the actuating cam in the forward direction and is moved backward in the axial direction to immerse the input tip in the pen case. Put it back in.

Further, according to the technical means of the fourth aspect, as described above, by rotating the actuating cam by a certain angle in the forward direction during writing, the cam is engaged with the cam guide surface of the actuating cam. The slide piece of the writing tip, which is connected and connected via the hollow pipe for writing, is pushed by the cam guide surface and guided by the guide groove to move linearly forward in the axial direction, and the writing tip is moved to the tip of the pen case. Writing with a writing tip that has a knock-type mechanical pencil element by protruding from the opening enables writing, and by moving the operating cam back and forth in this state, the operating cam engages with the cam guide surface of the writing The lead feeding operation is transmitted to the chip through the slide piece of the chip, and the lead is fed. At this time, the slide piece of the input tip is guided by the guide groove in correspondence with the rotation of the actuating cam in the normal direction and is moved backward in the axial direction to immerse the input tip in the pen case, Return to.

[0019]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show an input pen according to claims 1 and 2, wherein 1 is a pen case having a tip opening 2. A hollow pipe 4 for press-fitting and supporting the input tip 3 at the tip is inserted (retracted) in the axial direction in a state in which the input tip 3 is directed toward the tip opening 2 and projected from the opening 2. By pressing the tip of the input chip 3 protruding from the tip opening 2 of the pen case 1 against each key of the keyboard, the key operation, that is, the input operation is performed.

The pen case 1 is an integrally molded product that is injection-molded into a hollow cylinder having a thickness and a length that can be grasped with a hand like an ordinary writing pen, and is formed on the outer circumference of the rim of the tip opening 2. A front threaded portion 6 for screwing and mounting the front opening 5 is provided, and a rear end threaded portion 9 for screwing and mounting a tail plug 8 is provided on the outer periphery of the rear end opening 7 at the mouth. The outer shape of the pen case 1 except for the tip side is formed into a hexagonal cross section, and the tip side has a large number of ring-shaped circumferentially-arranged continuously spaced at regular intervals in the axial direction. Anti-slip 10 is formed. The tip opening 5 is formed of a metal material such as stainless steel into a tapered, substantially conical shape with a tip projecting opening 11 opened at the tip, and is screwed and attached to the tip of the pen case 1 so that it can be removed appropriately. By attaching the front end 5 to the tip of the pen case 1, it is possible to give a high-class feeling as a product.

The tail plug 8 is an integrally molded product which is injection-molded into a cylindrical shape having a thickness approximately the same as that of the pen case 1 whose rear end is closed and whose front end is opened. It is designed so that it can be detachably attached to 7 by screwing. Inside the tail plug 8, there is provided a locking step portion 12 for detachably fitting and locking the rear end of the hollow pipe 4, and the rear end of the hollow pipe 4 is locked to the locking step portion 12. In this state, the pipe 4 can be inserted into the pen case 1 or pulled out. A flat portion 13 is formed on the outer surface of the tail plug 8 at a constant interval in the circumferential direction and extends with a constant width in the axial direction so that it does not slip when it is attached to or detached from the pen case 1.

The hollow pipe 4 fits and supports the input tip 3 substantially integrally at the tip, and is inserted into the pen case 1 so as to be axially removable so that the input tip 3 can be inserted and removed from the front opening 5. It has a function of holding the tip protruding port 11 in an externally protruding shape, and has a thickness that allows it to be inserted loosely into the pen case 1 with a synthetic resin such as nylon or polypropylene. When it is inserted and installed in the pen case 1, the tip edge supporting the input tip 3 abuts the hole step portion 14 of the front opening 5, and the rear end of the pen case 1 is provided. The tail plug 8 is formed to have a length such that it can be detachably fitted and retained in the locking step portion 12 in the tail plug 8 attached to the rear end opening 7 so as to project from the rear end opening 7 to the outside. Remove it from the rear end of 1 so that it can be pulled out from the same case 1. .

The input chip 3 is an integrally molded product that is injection-molded from a synthetic resin such as polyvinyl acetal, nylon, polypropylene, polyethylene, or styrene resin, preferably polyvinyl acetal having an appropriate elastic action. The rear end side is formed to have a thickness such that it can be press-fitted inside the front end, and a tapered spherical key pressing portion 15 is formed at the front end portion. The tip of the input chip 3 is tapered so that each key of the keyboard arranged in a fine pattern can be accurately pressed to input. In other words, the keys are formed so as not to be touched by adjacent keys during operation so that each key can be pressed accurately.

Reference numeral 16 in the drawing denotes a tip cap that is detachably fitted to the tip of the pen case 1, and is attached to the tip of the pen case 1 when not in use, so that the tip key of the input chip 3 is projected. The pressing portion 15 is protected. A clip 17 is integrally provided at the opening of the cap 16 so as to extend from the edge of the cap 16 in the axial direction.

Thus, according to the input pen of the present invention configured as described above, the input tip 3 protruding from the tip opening 2 of the pen case 1 has a tapered key pressing portion 15 formed in a spherical shape. With this, it is possible to input by pressing each key of the keyboard arranged in a fine pattern accurately. When part of the tip key pressing portion 15 of the input tip 3 is worn flat due to long-term use, the tail plug 8 is removed from the rear end opening 7 of the pen case 1 so that It is possible to easily remove the input chip 3 by pulling it out from the pen case 1 together with the hollow pipe 4 that is locked. Then, after the rear end of the hollow pipe 4 that press-fits and supports the new purchased input tip 3 at the tip is press-fitted into the tail plug 8, the pen case 1 is axially directed into the case 1 from the rear end opening. By inserting the input chip 3 into the pen case 1, the input chip 3 can be attached to the tip opening 2 of the pen case 1 so as to be protruded from the tip projection port 11 of the tip port 5 (see FIG. 2).

Therefore, according to the input pen of the present invention according to claims 1 and 2, the input chip 3 can be easily replaced. Moreover, since the structure is greatly simplified compared to the conventional input pen, it is possible to improve the productivity and eventually manufacture and sell it at low cost.

3 to 11 show an input pen according to claims 3 to 4, a composite pen having a writing element in addition to a so-called input element, and FIGS. 3 to 6 show the input chip 3 and the ballpoint pen element described above. An embodiment according to claim 3 showing a case of a composite pen with a writing tip 18 which is provided is shown, and in the drawing, 19 is a pen case having a tip opening 20, and in this pen case 19, the input chip 3 and a ballpoint pen are provided. Two hollow pipes 21, 22 for input and for writing, respectively, each supporting a writing tip 18 having an element at the tip thereof, directed the input tip 3 and the writing tip 18 at the tip toward the tip opening 20 side. It is inserted (stored) in the axial direction. Further, guides 26 having axially extending guide grooves 24, 25 at two corresponding positions on the outer periphery of the shaft are press-fitted and connected to the rear end opening 23 of the pen case 19, and the hollow pipes 21, 22 are respectively connected. At the rear end, slide pieces 27, 28 which are guided and moved in the axial direction by engaging with corresponding ones of the guide grooves 24, 25 are detachably provided, and the slide pieces 27, 28 are arranged around the guide 26 at a constant angle. The guide 26 is rotatably enclosed and rotated in a forward or reverse direction by a certain angle to alternately move the slide piece 27 of the input chip 3 or the slide piece 28 of the writing chip 18 in the axial direction. As described above, by performing the pivoting operation of the actuating cam 30 having the cam guide surface 29 engaging with the both slide pieces 27, 28 on the lower end edge surface, the input tip 3 and the writing tip 18 are moved to the pen case 19. Alternately from the tip opening 20 to the input position and the writing position. By protruding, the input chip 3 enables the input operation of pressing each key of the keyboard, and the writing by the writing chip 18 having the ballpoint pen element becomes possible. Then, by rotating the operating cam 30 back to its neutral position which is neither in the normal rotation direction nor in the reverse rotation direction, both the chips 3 and 18 are returned to the pen case 19 so as to be retracted. You can do it.

The pen case 19 includes a lower case 19-1 formed by injection molding into a tubular shape having a thickness that can be grasped with a hand like an ordinary writing pen, and a joint sleeve 31 described later on the lower case 19-1. The upper case 19-2, which is detachably attached, and the upper case 19-2 are configured to have a length approximately the same as a normal writing pen. The lower case 19-1 is provided with a tip opening 20 for gradually narrowing the tip side in a taper shape and projecting the input tip 3 and the writing tip 18 alternately in a retractable manner, while the upper case 19-2 is lower. Case 19-1 is formed into a cap shape with a clip 32 on the outer surface by closing the rear end with a thickness that allows it to be inserted and inserted into the rear end side of the case 19-1 in a loose fit state that does not touch the outer surface, and operates. The cam 30, the guide 26, and the joint sleeve 31 are attached to the rear end of the lower case 19-1 via these.

The joint sleeve 31 is for connecting the guide 26 to the lower case 19-1 in a removable manner, has an inner diameter that can be press-fitted into the distal end side of the guide 26 and integrally connected, and has a lower case. It is formed into a cylindrical shape with an outside diameter that does not easily come off from the case 19-1 when it is inserted into and connected to the case 19-1. The retaining press contact portion 33 that is pressed and stopped by an appropriate contact force is bulged so that it does not come off from the lower case 19-1 and does not rotate unless an appropriate extraction force is applied. .

The guide 26 is formed into a solid cylindrical shape having an outer diameter slightly smaller than the thickness of the upper case 19-2 and having a length such that it can be contained in the case 19-2. Two guide grooves 24 and 25 extending in the axial direction are formed on the outer surface in the range from to the vicinity of the rear end side so as to face each other. In the guide grooves 24 and 25, the slide pieces 27 and 28 of the input tip 3 and the writing tip 18 are slidably fitted and mounted, respectively, and both pieces 27 and 28 are rotated by the actuation cam 30 so that the pieces 27 and 28 are pen-shaped. It is for linearly reciprocating guides in the axial direction of the guide 26, and is provided at two locations on the outer surface of the guide 26 facing each other with an appropriate opening width and depth. Further, a shaft head 34 integrally projecting in the axial direction is provided at the center (axial center) of the rear end surface of the guide 26, and a rotation restricting ring 35 is fixedly fitted to the rotation. There is. In addition, step portions 36 and 37 are provided on the inner surfaces of the opening edges of the guide grooves 24 and 25 that open toward the tip end surface of the guide 26, respectively. The step portions 36 and 37 are provided to reduce the groove width, and coil springs 38 and 39 to be described later are provided. The lower end of is supported by the steps 36 and 37.

The rotation restricting ring 35 is fixedly mounted on the shaft head 34 at the upper end of the guide 26 after the actuating cam 30 is fitted and mounted on the guide 26. A claw guide groove 41 for guiding and moving a rotation restricting claw 40, which will be described later, of the operating cam 30 in a constant range in the circumferential direction in order to constantly control the rotation angle of the rotating operation cam 30 in the forward or reverse direction. Is provided. The claw guide groove 41 engages with the rotation restricting claw 40 so as to restrict the rotation of the actuating cam 30 in the forward or reverse direction within a constant angle around the guide 26, for example, in the range of 90 to 180 °. The forward rotation restricting part 41a is provided on one side in the circumferential direction of the rotation restricting ring 35, and the reverse rotation restricting part 41b is provided on the other side, and the rotation restricting claw 40 abuts on the normal rotation restricting part 41a on one side of the groove. The rotation of the actuating cam 30 in the forward rotation direction is regulated by this, and the rotation of the actuating cam 30 in the reverse rotation direction is regulated by the abutment of the rotation regulating pawl 40 on the reverse rotation regulating portion 41b on the other side of the groove. It is configured to

The actuating cam 30 is internally press-fitted inside the upper case 19-2, and is internally housed in the case 19-2 that rotates around the guide 26 by the rotating operation of the case 19-2. The cam guide surface 29 is formed in a cylindrical shape having a certain length, and a lower end edge surface thereof is formed with a cam guide surface 29. The cam guide surface 29 is cut obliquely to the axis of the actuating cam 30 so that a flat portion 29-1 is formed on the apex thereof. Symmetrically inclined inclined surfaces 29-2 and 29-3 are formed, and a piece hooking concave portion 29-4 is further formed at the confluent lower portion of both inclined surfaces 29-2 and 29-3. . This piece hooking recess 29-4 is also notched in a chevron shape so that the chevron hooking portions 27-1 and 28-1 of the slide pieces 27 and 28, which will be described later, can be fitted and locked, and both inclined surfaces 29- It is formed at the bottom of the confluence of 2, 29-3. Further, a rotation regulating claw 40 is formed on the opening edge of the upper end of the actuating cam 30 so as to project in a substantially fan shape toward the axis thereof. The rotation regulating claw 40 is located at the upper end of the guide 26. By engaging with the claw guide groove 41 of the ring 35, the rotation range of the operation cam 30 that rotates around the guide 26 is restricted to a constant angle, and the connection with the guide 26 is performed in the axial direction. The guide 26 is provided inside the upper case 19-2 via an actuating cam 30.

The slide pieces 27 and 28 detachably connect and support the hollow pipes 21 and 22 for press-fitting and supporting the input tip 3 and the writing tip 18 at their tips through the connection pipes 42 and 43, respectively, and the operation cams. The input tip 3 and the writing tip 18 are alternately pushed out from the tip opening 20 of the lower case 19-1 by being pushed by the cam guide surface 29 of the actuating cam 30 in response to the rotation of 30. The guide 26 is formed in a rectangular block shape such that the guide grooves 24 and 25 of the guide 26 can be slidably fitted in the groove direction and housed therein, and the rear ends of the connection pipes 42 and 43 are integrally formed on the lower surface thereof. The stepped connection parts 27-2 and 28-2, which are press-fitted and connected to the projecting base side, are provided with protrusions, and the cam guide surface 29 of the actuating cam 30 is on the front facing the actuating cam 30 side. A chevron that slides in response to the rotation of the actuating cam 30 by engaging the chevron slope and its top The hooking parts 27-1 and 28-1 are equipped with protrusions. The connection pipes 42 and 43 are formed to have a certain thickness such that their rear ends can be press-fitted and connected to the connection portions 27-2 and 28-2 of the slide pieces 27 and 28, respectively, and the tip ends are It is formed to have a diameter larger than that of the other parts, and provided on the tip end side thereof are connecting portions 42a and 43a for connecting the hollow pipes 21 and 22 of the input tip 3 and the writing tip 18 so that they can be inserted and removed with appropriate force.

The coil springs 38, 39 are wound around the outside of the connection pipes 42, 43, and the lower ends of the coil springs 38, 39 are supported by the step portions 36, 37 at the tip opening edges of the guide grooves 24, 25, and the upper ends thereof are connected to each other. The input tips 3 and the writing tips 18 are always immersed in the guide grooves 24 and 25, respectively, by being supported by the slide pieces 27 and 28 for connecting and supporting the upper ends of the pipes 42 and 43, respectively. It plays a role of urging (in the backward direction). That is, the spring force of the coil springs 38 and 39 causes the chevron hooking portions 27-1 and 28-1 of the slide pieces 27 and 28 to be engaged with the cam guide surface 29 of the actuating cam 30. As a result, both slide pieces 27, 28 are advanced in the axial direction of the pen case 19 along the respective inclined surfaces 29-2, 29-3 of the cam guide surface 29 corresponding to the rotation of the operating cam 30. Alternatively, by sliding it backward, the input tip 3 and the writing tip 18 are alternately projected from the tip opening 20 of the lower case 19-1, and both tips 3 and 18 are pushed from the tip opening 20 to the lower case 19-. It has the role of being alternately immersed in 2 and returned (stored) in the same case 19-1.

Since the input chip 3 has the same configuration as described in detail in the embodiments according to claims 1 to 3, the same reference numerals are used for the same components and the description thereof will be omitted. Further, in the case of the hollow pipe 21 integrally fixing and supporting the same input chip 3, the length is changed as is apparent from the illustrated example, and the rear end thereof is thick enough to be detachably connected to the tip of the connecting pipe 42. To form. On the other hand, the writing tip 18 having a ball-point pen element is provided with an ink flow path penetrating the front and rear ends of the inner shaft core as in the case of the public knowledge, and the transfer ball 44 for sending ink to the writing paper surface is transferred to the tip of the flow path. It has a well-known structure in which it is movably installed. Further, the hollow pipe 22 integrally fixedly supporting the writing tip 18 is a synthetic resin or metal pipe that also serves as an ink tank for filling the ink, and its rear end can be freely inserted into and removed from the tip of the connection pipe 43. It is formed to a thickness that allows connection.

Thus, according to the input pen of the present invention configured as described above, as shown in FIG. 5, both the input chip 3 and the writing chip 18 are returned to the lower case 19-1 of the pen case 19. From the stored state (state of FIG. 5 (a)), when the input chip 3 is projected to the outside from the tip opening 20, the upper case 19-2, that is, the operating cam 30 is rotated in the forward direction (right direction in the figure). Direction). Then, in response to this rotation, the slide piece 27 of the input chip 3 slides the inclined surface 29-2 with which the cam guide surface 29 of the actuating cam 30 engages toward the piece hooking recess 29-4 at the lower part of the confluence. Then, it is fitted and locked in the hook locking recess 29-4 of the same piece. On the other hand, the slide piece 28 of the writing tip 18 slides on the other inclined surface 29-3 that engages toward the flat portion 29-1 at the top by the spring force of the coil spring 39, and the flat portion 29-1. Be locked in. At this time, the rotation restricting claw 40 of the actuating cam 30 is brought into abutment with the forward rotation restricting portion 41a on one side in the circumferential direction of the claw guide groove 41 of the swivel restricting ring 35 at the upper end of the guide 26, so that the actuating cam 30 moves. It regulates the rotation angle in the forward direction. Therefore, the slide piece 27 of the input chip 3 is guided by the guide groove 24 of the guide 26 and linearly moves forward in the axial direction, causing the input chip 3 to project from the tip opening 20 and the key pressing portion of the input chip 3. Allows keyboard entry with 15 (state in Figure 5 (b)).

On the other hand, when the input tip 3 projects from the tip opening 20 and the writing tip 18 projects from the tip opening 20 instead of the input tip 3, the actuating cam 30 moves in the reverse direction (in the figure, By rotating the slide piece 28 of the writing tip 18 from the flat portion 29-1 that is hooked, the inclined surface 29-3 slides toward the piece hooking recess 29-4 at the lower part of the confluence. The writing tip 18 is projected from the tip end opening 20 by being able to be fitted and locked in the hook hanging concave portion 29-4 of the same piece to enable writing by the ballpoint pen element (state of FIG. 5C). At this time, the slide piece 27 of the input chip 3 is released from the engagement state with the piece engagement recess 29-4, and the inclined surface 29-2 is slid toward the flat portion 29-1 at the top by the spring force of the coil spring 38. It moves and is locked on the flat part 29-1.

When the writing tip 18 is retracted into the lower case 19-1 together with the input tip 3 already stored and is returned to the storage position, the actuating cam 30 is rotated in the forward direction. , The slide piece 28 of the writing tip 18 is released from the engagement state with the piece engagement recess 29-4 of the actuating cam 30, and the spring force of the coil spring 39 causes the inclined surface 29-3 toward the flat portion 29-1 at the top. Slide on. At this time, as described above, the actuating cam 30 has the rotation restricting claw 40 of the actuating cam 30 colliding with the forward rotation restricting portion 41a on one side in the circumferential direction of the claw guide groove 41 of the rotation restricting ring 35 at the upper end of the guide 26. Do not rotate to the full rotation angle, but stop halfway. That is, the operation cam 30 is rotated neither in the forward rotation direction nor in the reverse rotation direction so that both slide pieces 27, 28 of the input chip 3 and the writing chip 18 stop in the middle of the respective inclined surfaces 29-2, 29-3. Do not rotate it to return to its neutral position. As a result, the writing tip 18 is retracted together with the input tip 3 into the initial storage position shown in FIG.

Therefore, according to the input pen of the present invention according to the third aspect, when the keyboard is input by the input chip 3, when the writing is performed by the writing chip having the ballpoint pen element on the writing paper surface, Switching between input and writing can be performed immediately by rotating the operation cam 30. If the tip key pressing portion 15 of the input tip 3 is worn out flatly due to long-term use, or if the hollow pipe 22 of the writing tip 18 runs out of ink, the fitting sleeve 31 should have an appropriate insertion force. By pulling out the lower case 19-1 inserted and connected with the joint sleeve 31 from the joint sleeve 31, the connection pipe 42 and the writing tip 18 supporting the rear end of the input tip 3 exposed from the joint sleeve 31 to the outside. The hollow pipes 21, 22 can be easily removed by pulling out the respective hollow pipes 21, 22 from the connecting portions 42a, 43a of the connecting pipe 43 supporting the rear end of the hollow pipe 22 (see FIG. 6). The rear end of the hollow pipe 21 for press-fitting and supporting the new input tip 3 purchased at the tip and the rear end of the hollow pipe 22 for press-fitting and supporting the writing tip 18 at the tip are connected to and supported by the respective connecting portions 42a, 43a. After that, by inserting the lower case 19-1 into the joint sleeve 31 and connecting it, the new input tip 3 and the writing tip 18 are stored in the lower case 19-1 so that they can be alternately projected and retracted from the tip opening 20. can do.

7 to 11 show an embodiment according to claim 4 showing a case of a composite pen of the above-mentioned input chip 3 and a writing chip 45 having a knock type mechanical pencil element, and such an embodiment is Instead of the above-mentioned writing tip 18 having a ballpoint pen element, a writing tip 45 having a knock type mechanical pencil element is press-fitted and supported on the tip of a hollow pipe 46, and the hollow pipe 46 is press-fitted to support the input tip 3. It is configured so that it is inserted (stored) in the pen case 19 in the axial direction together with the pen case 21 and alternately protrudes and retracts from the tip end opening 20 thereof. Therefore, in this embodiment, the same reference numerals are given to the same components in the configuration such as the switching mechanism for alternately projecting the input tip 3 and the writing tip 45 from the tip opening 20 described in the embodiment according to claim 3 above. A detailed description thereof will be omitted by using it, and only the constituent parts (structural members) that differ in structure will be described below.

As shown in FIG. 9, the writing tip 45 having a mechanical pencil element includes a joint sleeve 45-1 whose upper end is press-fitted or screwed and fixed to the lower end of the hollow pipe 46 in a communicating manner, and the joint sleeve 45-1. A connecting sleeve 45-2, which is press-fitted and fixed to the lower end of 45-1 in a communicating manner and has a chuck claw 47 at the lower end, and a connecting cylinder 45 which is axially slidably fitted and mounted on the outer surface of the connecting sleeve 45-2. -3 and a stepped tubular shape that is press-fitted and fixed to the outer surface of the connecting tube 45-3 and has a rubber core retaining ring 50 inside the stepped hole 49 through which the core 48 of the inner shaft is inserted. The front opening 45-4 and the inner surface of the front opening 45-4 and the outer surface of the connecting sleeve 45-2 are abutted against the tip edge of the connecting cylinder 45-3, and are installed inside the chuck jaw 47. After the lead 48 is extended by a predetermined amount and the lead 48 is extended by a predetermined length, a clamping operation for gripping the lead 48 to the chuck claw 47 is performed. The coupling ring 45-5 is wound (interposed) between the retaining ring 51 attached to the joint sleeve 45-1 and the upper end of the coupling cylinder 45-3 to couple the coupling cylinder 45-3. It is composed of a coil spring 45-6 that biases the sleeve 45-2 toward the tip chuck claw 47, and reciprocally moves the actuating cam 30 in the axial direction as described later, and the axial movement is performed via the joint sleeve 45-1. To the connecting sleeve 45-2, the sleeve 45-2 is moved forward against the spring pressure of the coil spring 45-6 and is retracted by the spring pressure, so-called knocking operation is repeated. It is designed so that the lead 48 is drawn out from -4.

The hollow pipe 46 also functions as a lead replenishing tank for loading a lead 48 formed to a thickness that allows the hollow pipe 46 to be removably connected to the tip connection portion 43a of the connection pipe 43 with an appropriate force. The joint sleeve 45-1 of the writing tip 45 is press-fitted and connected to the tip of the writing tip 45, and the tip 45 is inserted into the pen case 19 with the tip 45 facing toward the tip opening 20 side.

The rotation restricting ring 52, like the above-described rotation restricting ring 35, is fixed to the shaft head 34 at the upper end of the guide 26 so that the actuating cam 30 is fitted and mounted on the guide 26. The rotation restriction ring 35 is formed to be longer than the rotation restriction ring 35, and the rotation restriction claw 40 provided on the upper end opening edge of the operation cam 30 engages with the outer surface thereof to correspond to the rotation of the cam 30. The inclined portion 53a that slides by sliding is provided in the circumferential direction within a range of rotation of the operation cam 30 in the forward and reverse directions by a certain angle, and when the input tip 3 is projected from the tip opening 20 at the lower end of the inclination, While the regulation portion 53b on one side in the circumferential direction that regulates the rotation angle of the actuating cam 30 in the forward rotation direction is provided, the distance from the upper end of the inclination that corresponds to the protrusion width of the rotation regulation pawl 40 is set in the circumferential direction. The other side in the circumferential direction that controls the rotation angle of the operating cam 30 in the reverse direction when the chip 45 is projected from the tip opening 20. Of the rotation restricting ring 52 in the axial direction about the entire length of the rotation restricting ring 52, and the rotation of the operation cam 30 is restricted by the restricting portion 53b. A claw guide groove 53 having a groove structure provided with an up-and-down moving portion 53d that can be appropriately moved is formed.

In the figure, reference numeral 54 denotes an eraser holder fitted and attached to the rear end of the upper case 19-2 described above. An eraser 55 is detachably inserted into the holder 54, and the eraser 55 is further fitted. The cap (hat) 56 that protects in a shape is screwed on the holder 54 so that it can be removed appropriately.

As described above, according to the input pen of the present invention constructed by combining the writing tip 45 having the knock type mechanical pencil element as described above, the input tip 3 is opened as shown in FIG. In the case of projecting outward from 20, as described in detail in the above-described embodiment, the rotation restricting claw 40 has the forward rotation restricting portion on one side in the circumferential direction of the claw guide groove 53 of the rotation restricting ring 52 at the upper end of the guide 26. It is performed by rotating the actuating cam 30 in the forward direction until it abuts against 53b. At this time, the actuating cam 30 engages with the inclined portion 53a of the claw guide groove 53 of the rotation restricting ring 52 at the upper end of the guide 26 by the spring force of the coil springs 38 and 39, and the lower end of the inclined lower end of the rotation restricting claw 40 is engaged. The movement lock on the one-sided forward rotation restricting portion 53b disables the movement in the axial direction, and the protruding state from the tip opening 20 of the input pen 3 is maintained (the state shown in FIG. 10A).

When the writing tip 45 is projected to the outside from the tip end opening 20, the rotation restricting claw 40 has the reverse rotation restricting portion on the other side in the circumferential direction of the claw guide groove 53 of the rotation restricting ring 52 at the upper end of the guide 26. This is done by rotating the actuating cam 30 in the reverse direction until it abuts against 53c. At this time, the actuating cam 30 is engaged with the inclined portion 53a of the claw guide groove 53 by the spring force of the coil springs 38 and 39, and the inclined portion 53a is inclined along the inclination from the normal rotation regulation portion 53b side to the reverse rotation regulation portion 53c side. By the backward movement of the rotation restricting claw 40 that moves, the input tip 3 is positioned in the vertical movement portion 53d at the upper end of the inclination in a state in which the input tip 3 is in a rear end position rather than in the above-mentioned state, so that the input tip 3 can freely move in the axial direction. It is ready to move (state in Figure 10 (b)). Therefore, the hollow pipe 46 that supports the writing tip 45 is also in a state where it can move in the axial direction. Therefore, the vertical movement of the upper case 19-2, that is, the actuating cam 30 is transmitted to the writing tip 45, and the tip 45 is moved. The lead 48 is fed out from the tip 45-4 of the front end of the front end of the front end, and the writing is ready.

More specifically, as shown in (b) to (c) of FIG. 10, the front end 45-4 of the writing tip 45 is projected from the tip opening 20 by the rotation of the actuating cam 30 in the reverse direction. In the state brought to the writing position (state of FIG. 10 (b)), the actuating cam 30 is pushed by the finger operation in the direction of arrow M against the spring force of the coil springs 38, 39, The slide piece 28 that engages with the cam guide surface 29 of the actuating cam 30, the connection pipe 43 press-fitted and supported by the slide piece 28, and the hollow pipe 46 into which the core 48 is loaded are moved forward in the axial direction and written. The front opening 45-4 of the tip 45 is brought into contact with the tip opening 20. By further pushing the operating cam 30 downward from that state, the coupling sleeve 45-3 slides toward the tip side of the front port 45-4 against the spring force of the coil spring 45-6, and tightens. The core 48 held in cooperation with the ring 45-5 is delivered to the front end side of the front port 45-4. Then, the movement of the connecting sleeve 45-3 toward the tip side of the front opening 45-4 is further advanced, and the tightening ring 45-5 comes into contact with the latching step portion 57 of the front opening 45-4 to tighten the tightening ring 45-5. When is separated from the claw chuck 47, the lead 48 is released from the gripped state of the claw chuck 47 and is drawn out from the tip port 45-4 to allow writing with a mechanical pencil element.

Therefore, according to the input pen of the present invention as claimed in claim 4, when inputting on the keyboard by the input chip 3, while writing by the writing chip 45 having a mechanical pencil element on the writing paper surface, etc. In addition, the input and the writing can be switched immediately by rotating the operation cam 30. If the tip key pressing portion 15 of the input tip 3 is worn flat or the core 48 of the hollow pipe 46 of the writing tip 45 is broken due to long-term use, as described above, the joint sleeve is used. By pulling out the lower case 19-1 which has been connected by inserting 31 with an appropriate insertion force and pulling it out from the joint sleeve 31, the hollow pipe 21 of the input chip 3 exposed to the outside from the joint sleeve 31 The hollow pipes 21 and 46 can be easily removed by pulling them out from the connecting portions 42a and 43a of the connecting pipes 42 and 43 supporting the rear ends of the connecting pipe 42 supporting the ends and the hollow pipe 46 of the writing tip 45, respectively. (See Figure 11). The rear end of the hollow pipe 21 for press-fitting and supporting the new input tip 3 purchased and the rear end of the hollow pipe 46 for press-fitting and supporting the writing tip 45 supplemented with the core 48 at the respective connecting portions 42a. , 43a, the lower case 19-1 is inserted into the joint sleeve 31 and connected, so that the new input tip 3 and the writing tip 45 supplemented with the core 48 are opened in the lower case 19-1. It can be stored so that it can appear and disappear alternately from 20.

[0049]

[Effect of device]

 Since the input pen of the present invention is constructed as described above, it has the following operational effects. ． The synthetic resin input tip protruding from the tip opening of the pen case has a tapered and spherical key pressing part at the tip, so that each key arranged in a fine pattern can be pressed accurately. You can enter at least. If part of the tip key pressing part of the input tip wears flat over time, you can easily remove it by pulling it out of the pen case together with the hollow pipe, and tip the newly purchased tip. By inserting a hollow pipe that is press-fitted into the pen case into the pen case, the pen can be attached by protruding from the tip opening of the pen case. Since the input tip is press-fitted and supported at the tip of the hollow pipe, it can be attached to the tip opening of the pen case while protruding from the tip opening, greatly simplifying the structure and improving productivity. The effect that it can be manufactured at low cost is obtained.

Therefore, according to the input pen of the present invention, when the key pressing portion formed in a spherical shape becomes worn due to long-term use, it can be immediately replaced with a new one. Moreover, the structure is greatly simplified compared to the conventional input pen, and efficient production is possible, so that it can be manufactured and provided at low cost. ． By removing the tail plug from the rear end of the pen case, the input chip can be pulled out together with the hollow pipe from the pen case. Therefore, it is expected that the input chip can be replaced more easily than the above. ． By rotating the actuating cam in the reverse direction at a constant angle when inputting to the keyboard, the slide piece of the input chip that is connected and connected to the cam guide surface of the actuating cam is connected through a hollow pipe for input, for example. The input is pushed by the cam guide surface and guided by the guide groove to move linearly forward in the axial direction, the input tip is made to protrude from the tip opening of the pen case, and the input is made of synthetic resin and has a spherical key pressing portion at the tip. Allows the chip to input to the keyboard. When writing, by rotating the actuating cam in the forward direction by a certain angle, the slide piece of the writing tip connected and connected through the hollow pipe for writing engaging with the cam guide surface of the actuating cam is used to move the cam. The writing tip is pushed by the guide surface and guided by the guide groove to move linearly forward in the axial direction, and the writing tip is projected from the tip opening of the pen case to enable writing with the writing tip having a ballpoint pen element.

Therefore, according to the input pen of the present invention, it is possible to immediately respond to the switching between input and writing by a simple operation such as rotating the actuating cam. It is very convenient and practical to handle when writing with a ballpoint pen element on the surface. ． As described above, by rotating the actuating cam in the forward direction at a constant angle during writing, the sliding piece of the writing tip connected and connected via the writing hollow pipe that engages with the cam guide surface of the actuating cam. It is pushed by the cam guide surface and guided by the guide groove to move linearly forward in the axial direction, and the writing tip is projected from the tip opening of the pen case to allow writing with a writing tip having a knock-type mechanical pencil element. In this state, by reciprocally moving the actuating cam in the axial direction, the lead feeding operation is transmitted to the tip via the slide piece of the writing tip that engages with the cam guide surface of the actuating cam, and the lead is fed out. This makes it possible to write with a writing tip having a mechanical pencil element, which is very convenient as well.

[Brief description of drawings]

FIG. 1 is a front view showing an example of an embodiment of an input pen according to claims 1 and 2 of the present invention, a part of which is shown as a cutaway section.

FIG. 2 is a perspective view showing a state in which the input chip is pulled out from the pen case and taken out or inserted into the pen case.

FIG. 3 is a vertical sectional front view showing an example of implementation of an input pen (composite pen) according to claim 3;

FIG. 4 is an exploded perspective view of the same.

FIG. 5 is a development schematic diagram explaining the movements of the input tip and the writing tip in relation to the actuating cam. (A) shows a state where both tips are housed in a pen case, (b) shows the input tip. (C) Shows the state of protruding from the tip opening
Shows the state where the writing tip is projected from the tip opening

FIG. 6 is a perspective view in which the lower case of the pen case is pulled out from the upper case and separated so that the input chip and the writing chip can be replaced with each other.

FIG. 7 is a vertical sectional front view showing an example of implementation of an input pen (composite pen) according to claim 4;

FIG. 8 is an exploded perspective view of the same.

FIG. 9 is an enlarged cross-sectional view of a writing tip having a knock-type mechanical pencil element.

FIG. 10 is a development schematic view explaining the movement of the input tip and the writing tip in relation to the actuating cam, (a) shows a state in which the input tip is projected from the tip opening, and (b) shows the writing tip. Shows the state of protruding from the tip opening,
(C) shows the state in which the lead is extended from the writing tip protruding from the tip opening.

FIG. 11 is a perspective view in which the lower case of the pen case is pulled out from the upper case and separated so that the input chip can be replaced and the lead for the writing chip can be replenished.

[Explanation of symbols]

1,19 ... Pen case 2,20 ...
Tip opening 3… Input tip 4, 21, 22.46… Hollow pipe 18, 45… Writing tip 24, 25…
Guide groove 26… Guide 27, 28… Slide piece 29… Cam guide surface 30… Actuating cam 35, 52… Rotation restriction ring 41, 53…
Claw guide groove

Claims (4)

[Scope of utility model registration request] 1. A cylindrical pen case having a tip opening,
The pen case is composed of a hollow pipe that is inserted in the pen case so as to be detachable in the axial direction, and an input chip that is press-fitted and supported at the tip of the pipe and protrudes from the tip opening of the pen case. An input pen characterized in that it has a key pressing portion which is formed into a taper and is formed in a spherical shape at the tip thereof. 2. A cylindrical pen case having a tip opening,
The pen case is composed of a hollow pipe that is inserted in the pen case so as to be detachable in the axial direction, and an input chip that is press-fitted and supported at the tip of the pipe and protrudes from the tip opening of the pen case. Has a key pressing portion formed in a tapered shape and a spherical shape at its tip, while a tail plug is detachably screwed into the rear end opening of the pen case, and a hollow pipe is attached to the tail plug. An input pen characterized in that the rear end is detachably fitted and held so that the input tip is supported in the tip opening of the pen case in an externally protruding shape. 3. A cylindrical pen case having a tip opening,
Cylindrical guides that are detachably connected to the rear end opening of the pen case and that have guide grooves extending in the axial direction at two opposing positions on the outer periphery of the shaft, and are inserted in the pen case in the axial direction. Two hollow pipes for writing and for input, each of which has a slide piece detachably attached to the rear end thereof and which is guided and moved in the axial direction by a corresponding one of the guide grooves, and at the tips of both hollow pipes. A writing tip and an input tip each having a ball-point pen element that is press-fitted and supported and alternately protrudes and retracts alternately from the tip opening of the pen case by alternate movement of the slide pieces, and a normal rotation direction and a reverse rotation direction around the guide. Encloses the guide so as to be rotatable by a certain angle, and the slide piece of the writing chip and the slide piece of the input chip are alternately moved in the axial direction by the normal rotation and the reverse rotation. And a cylindrical actuating cam having a cam guide surface that engages with both slide pieces at the lower end edge surface, the input tip is molded of synthetic resin and has a tapered spherical end. An input pen having a formed key pressing portion. 4. A cylindrical pen case having a tip opening,
Cylindrical guides that are detachably connected to the rear end opening of the pen case and that have guide grooves extending in the axial direction at two opposing positions on the outer periphery of the shaft, and are inserted in the pen case in the axial direction. Two hollow pipes for writing and for input, each of which has a slide piece detachably attached to the rear end thereof and which is axially guided and moved by a corresponding one of the guide grooves, and the tip ends of the two hollow pipes. A writing tip and an input tip each having a knock-type mechanical pen element that is press-fitted and supported and alternately protrudes and retracts from the tip opening of the pen case by alternating movements of the respective slide pieces, and a fixed angle rotation around the guide. The guide surrounds the guide so as to be movable and axially reciprocating, and the slide piece of the writing chip and the slide piece of the input chip are axially rotated by the normal rotation and the reverse rotation. The input tip is formed of synthetic resin and has a taper at its tip so as to be moved alternately. It has a key pressing portion formed in a spherical shape, and further, the reciprocating movement of the actuating cam in the axial direction is transmitted to the writing tip through a sliding piece of the writing tip engaged with the cam slide surface, and the lead is fed out. An input pen characterized by being configured so as to perform.