MXPA01013305A - Improvement on offset pen structure. - Google Patents

Abstract

An offset pen has a holding portion (51) and a writing portion (53) interconnected by an intermediate portion (52) such that the holding portion and writing portion have different axes with a vacancy therebetween. The vacancy provides a line of sight on either side of the writing tip (532) during use of the pen.

Description

IMPROVEMENT IN STRUCTURE OF STRAIGHT BOOM FIELD OF THE INVENTION The present invention relates to a cylindrical boom, and more particularly to an improved cylindrical boom structure for comfortable fastening, improved functions, and easy construction.

BACKGROUND OF THE INVENTION Until now, conventional writing tools such as fountain pen, pencil, spherical pen, coloring pencil and writing brush in the market are all in a linear fashion. That is, a writing head and a holding bar of a writing tool are substantially coaxial. Due to the boundary of the palm structure of people, the writing tool usually tilts backwards from the wrist while it is being used, such that the writing tip of the writing tool will obstruct the user's line of sight . As such, there are many flaws when writing or drawing with the conventional writing tool. First, a user can not clearly see the space behind the writing tool along the line of sight, making it difficult for the user to write right or draw in position. Especially for children, they may change their posture when sitting, for example, they lay their heads on desks while they write, in an attempt to bypass the line of sight blocking by the writing tool, and it is harmful to the sight and bones of children. In addition, people are accustomed to holding the writing tool obliquely, such that the linear shape of the writing tool results in the inclination of the writing portion relative to the work surface, and thus, the user you do not get any right point to exercise the pressure point, and you have to exert more tension on the work surface while you write or draw. The inevitable fatigue would ruin the children's interest in writing. In addition, the inclination of the writing portion relative to the work surface makes the drawing operations with an auxiliary tool such as a ruler, unable to achieve the best effect, since the writing tip will not be in close contact with the lateral surface of the ruler. The present inventor found that the above problems can be solved by means of providing an elbow pen including an intermediate portion between a holding portion, ie, the bar of the pen, and a writing portion, i.e. the writing head , for l. *. M. * l * m.i. b - *? **. i *, í. *** Make sure that the holding portion and the writing portion are placed on different axes. For example, Figures IA and IB schematically show how a cylindrical pen is used to solve the above problems. Please refer to Figure IA. A bent pen includes a holding portion a, an intermediate portion b, and a writing portion C. Due to the presence of the curved intermediate portion B, the axis of the writing portion C and that of the holding portion A, they will intersect at a certain angle, for the purpose of adjusting the angle between the writing portion C and the work surface, to approximately 90 degrees. As such, the user's line of sight will not be obstructed by the writing tool, such as by the front portion Pl of a traditional pen. In addition, the curved intermediate portion B provides a suitable structure for the user's fingers to exert force, for the purpose of decreasing the load of the user's fingers. Please refer now to Figure IB, in which a cylindrical pen is used together with a R-ruler. By use of a cylindrical pen including a holding portion A, a middle portion B, and a writing portion C, as mentioned above, the writing portion C is approximately perpendicular to the working surface K, for the purpose of being in close contact with the I ai t **? TO . i. * .. * .. tm ** .fí m-? m *? **** > w * A lateral surface R2 of the rule R. As such, the user will be able to draw a line precisely as he wishes, without being influenced by the structure of his palm and the thickness of the ruler. Up to now many kinds of shaped pens have been developed, although these are provided to solve problems different from the previous ones. United States Patent Number 655,731 issued to Pierce in 1990, discloses an angled fountain pen, in which a short tube laterally extended has one end thereof connected to the handle, and the other end thereof connected to the head of the handle. writing to regulate the ink discharged from the deposit in the handle to the writing head, to avoid stains and to get the fingers dirty. Pierce's design is focused on the selection of the cross-sectional areas of the ink passages of the pen, with the purpose of achieving the above purposes, and there is no special design to improve the tactility and holding stability, and others details while using the elbow pen. U.S. Patent No. 5,527,124 issued to Kolaric in 1996, discloses a shaped pen, and more particularly a spherical pen, which is formed in the lower section of the pen housing, for the purpose of positioning the pen. * t * Á * *?. * i. -i * k. i & *. * .- & * - ***? * # writing tip at an angle steeper than usual to the paper surface, to maximize the free flow of ink on the paper, while still allowing the user to maintain a comfortable grip on the pen . However, the design of Kolaric is focused on the selection of the lengths and angles of the sections of the pen, in order to achieve the above purposes, and there is no special design to improve the feel and stability of subject, and other details while using the shaped pen. On the other hand, in accordance with the manner of attachment of the shaped pen suggested in the Kolaric patent, as shown in Figure 3, the user's line of sight, although not obstructed by the writing tool, is blocked by the user's fingers. The Patent of the United States of North America Number 849,513 issued to Sturm in 1907 discloses an elbow pen that includes a grip section G in the middle portion and the writing head area, as shown in Figure 4. The grip section also obstructs the user's line of sight while writing or drawing. On the other hand, there is no reference so far that describes the manufacture of the layered pen. In fact, it is difficult to manufacture the housing of an integrally angled pen, such as the injection molding of the conventional linear pen, because a passage could be required. ^^^^ curved that extends through the writing portion, the intermediate portion and the holding portion, to accommodate an ink tank or refill. In addition, there is no bent pen designed for a replaceable pencil, which is a type of pencil consisting of a plurality of replaceable pencil heads of a short rod shape. The hollow passages of the conventional elbowed pens mentioned above, to accommodate ink reservoirs, are all bent so as not to be suitable for storing a series of replaceable pen heads.

COMPENDIUM OF THE INVENTION Therefore, an objective of the present invention is 15 providing a cylindrical pen having a vacuum below the intermediate portion, such that the user's line of sight can be extended on both sides of the writing head, through the vacuum, while writing or drawing. Another object of the present invention is to provide a cylindrical pen including a pen cap having a cap clamp specially designed to allow the non-linear cylindrical pen to be secured on a clamping piece, for example, the pocket of a 25 shirt, vertically.

A further object of the present invention is to provide a cylindrical boom in which the intermediate portion is designed to make the operations of attachment and writing of the cylindrical pen soft and comfortable. Another object of the present invention is to provide a cylindrical pen including a lighting device in the intermediate portion, such that the cylindrical pen can be used in a relatively dark environment. It is still an object of the present invention to provide a cylindrical pen that can be easily made by combining the parts manufactured separately. Still another object of the present invention is to provide a cylindrical pen that is especially suitable for using replaceable writing tips, for example, replaceable pen heads. Basically, a bent pen according to the present invention includes a holding portion for the holder to support a user's writing hand; a writing portion for mounting on it a writing tip to leave marks on a work surface; and an intermediate portion substantially connected between one end of the holding portion and one end of the writing portion for positioning the holding portion and the writing portion on different axes, and creating a gap between the writing portion and the portion of the writing portion. subjection. In addition, in accordance with the first aspect of the present invention, the intermediate portion of the bent pen 5 has two concavities on two sides thereof, respectively, optionally provided so that two fingers of the user's writing hand rest on the same, with the purpose of facilitating the operations of subjection and writing. For example, while writing, the The holding portion is supported between the thumb and the index finger of the user's writing hand, and the tips of the thumb and index finger of the user's writing hand rest on the two concavities. Preferably, the intermediate portion optionally has an upper surface 15 provided for the index finger tip of the user's writing hand, to press to further facilitate the holding and writing operations while writing. As for the shape of the upper surface, it can be flat, concave or convex, always and 20 when it is comfortable for the pressure finger. For the purpose of accommodating the writing tip, for example, the tip of a spherical pen, and a supply of writing material corresponding to the writing tip, for example, an ink refill, A hollow passageway extending through the writing portion, the intermediate portion, and the holding portion is configured within the angled pen. In this case, it is preferred that a lower portion of the intermediate portion be longer than the upper portion thereof in transverse area, such that the hollow passage penetrates through the intermediate portion smoothly. Preferably, the intermediate portion includes a soft bearing at the bottom, and the middle finger of the user's writing hand is optionally held against the soft bearing while 10 is written to feel comfortable. In accordance with a second aspect of this • invention, the elbow pen also includes a lighting device in addition to the writing portion, the holding portion, and the essential intermediate portion, mentioned 15 above. The lighting device is mounted to the intermediate portion to illuminate an area near the writing tip. In one embodiment, the lighting device is w? mounts in a lower part of the intermediate portion, and is 20 located within the gap between the writing portion and the holding portion. If the intermediate portion is transparent, the lighting device can be mounted inside the intermediate portion. If not, the device The lighting can also be mounted inside the intermediate portion, in a lower portion near a connection position between the intermediate portion and the fastening portion. In this case, however, you must configure a ^ opening at the bottom, below the device 5 lighting, to allow light to be transmitted outside the intermediate portion, to reach the area near the writing tip. Preferably, the writing tip is substantially located on an extension line of the holding portion, such that the light emitted from 10 the lighting device can be centered on the tip of ^^ writing. Alternatively, if the writing portion is transparent, the lighting device can be mounted inside the intermediate portion, in a position close to the connection between the intermediate portion and the writing portion. In another embodiment, the lighting device is mounted on a front surface of the intermediate portion. In a further embodiment, the intermediate portion B includes a soft bearing at the bottom, and the lighting device can be attached on the soft bearing. Preferably, the lighting device is a source of spot light, such as a light bulb. A battery for supplying power to the lighting device can be installed in the holding portion.

In accordance with a third aspect of the present invention, the elbow pen further includes a pen cap in addition to the essential writing portion, holding portion, and intermediate portion mentioned above. The pen cap includes a hollow tube for receiving the writing portion therein, to avoid staining of the writing tip when the elbow pen is not in use; and a clamp strip attached to the hollow tube, and having an angle with the hollow tube, to become axially parallel to the clamping portion when the hollow tube covers the writing portion, for the purpose of cooperating with the portion of clamping, to allow the elbow pen to embrace a clamping piece. Preferably, the hollow tube can cover an end portion of the holding portion when the elbow pen is in use, and the clamp strip is pivotally attached to the hollow tube. In this way, the clamp strip can be rotated pivotally so that the angle with the hollow tube becomes axially parallel to the clamping portion, when the hollow tube covers the writing portion, and rotated pivotally to become axially parallel to the hollow tube, when the hollow tube covers the end part of the holding portion. According to a fourth aspect of the present invention, the elbow pen having the essential writing portion, the holding portion, and the intermediate portion mentioned above, is characterized in that the intermediate portion is formed by the combination of at least two pieces separated. In one embodiment, the elbow pen is formed by the combination of two integrally formed pieces separately, wherein a first piece forms a part of the writing portion, the intermediate portion and the holding portion, and a second piece forms the other part. part of the writing portion, the intermediate portion, and the holding portion. The first and second parts can be combined using a toothed gear. Alternatively, the elbow pen is formed by the combination of two integrally formed parts separately, wherein a first piece forms a part of the intermediate portion and the holding portion, and a second piece forms the writing portion, and the other part of the intermediate portion and the holding portion. The first and second pieces can be combined by means of pivotally connecting the first piece with the second piece. In another modality, the elbow pen is formed by the combination of three pieces integrally formed separately, wherein a first piece forms a part of the intermediate portion, a second piece forms the writing portion and the other part of the intermediate portion, and a third piece forms a holding portion, and by screwing the intermediate portion and the portion of writing combined to the holding portion. Preferably, the first piece forms a lateral or rear surface of the intermediate portion. When the first piece forms a rear surface of the intermediate portion, the first piece is preferably a soft bearing that allows the middle finger of the user's writing hand to hold against it while writing to feel comfortable. In a further embodiment, the elbow pen is formed by the combination of many integrally formed pieces separately, wherein a first piece forms a part of the intermediate portion, a second piece forms another part of the intermediate portion, and a third piece forms the writing portion and the other part of the intermediate portion, and screwing the combined intermediate portion and the writing portion with the holding portion. Preferably, the first and second pieces form two opposite side surfaces of the intermediate portion, respectively. In yet another embodiment, the elbow pen is formed by the combination of two integrally formed parts separately, wherein a first piece forms the holding portion and a portion of the intermediate portion, and a second piece forms the other portion of the portion. intermediate and the writing portion. The first piece and the second piece are combined by gear teeth. Alternatively, the elbowed pen is formed by the combination of three integrally formed pieces separately, wherein a first piece forms a part of the intermediate portion, a second piece forms the other part of the intermediate portion and the writing portion, and a third piece forms the holding portion. The writing portion and the combined intermediate portion are connected to the fastening portion by screwing. Preferably, the first piece and the second piece are combined by a toothed gear. In a further embodiment, the elbow pen is formed by the combination of two integrally formed pieces separately, wherein a first piece forms the holding portion and the intermediate portion, and a second piece forms the writing portion. Preferably, the first piece and the second piece are combined by a toothed gear. In accordance with a fifth aspect of the present invention, in addition to the essential writing portion, holding portion, and intermediate portion mentioned above, the elbow pen further includes a writing tip retraction element to selectively retract the tip of writing within the writing portion. The retraction element of the writing tip includes a button mounted on the upper end of the clamping portion, and has a hollow tube for receiving the upper end of an ink refill, so that it is selectively pushed down with respect to the holding portion, in response to the operation of a user. In addition, there is a spring installed around the ink refill, and having a first end that pushes against an ink refill fixing element, and a second end that pushes against an inner surface of the elbow pen, for the purpose of form an elastic force to the ink exchange, in response to the movement of the ink refill. Preferably, the second end of the spring is a resilient rod that pushes against a lower portion of the intermediate portion. Accordingly, the writing tip of the ink refill extends out of the writing portion when the button is pressed, and the writing tip of the ink refill is pulled into the writing portion when the button is released. . Preferably, the cylindrical puma further includes a clamp strip attached to the clamping portion thereof, to allow the elbow pen to hold a clamping piece. According to a sixth aspect of the present invention, in addition to the writing portion, the clamping portion, and the essential intermediate portion, mentioned above, the elbow boom has additionally configured therein a linear hollow passage having both ends therein open in the air, and extend axially through the holding portion and the intermediate portion to accommodate therein a series of replaceable writing tips. In one embodiment, each of the writing tip and the replaceable writing tips, is of a pencil type writing material of a short rod shape, and includes a tapered writing part and a cylindrical base part. In another embodiment, each of the writing tip and the replaceable writing tips, is of a short rod shape, and includes a head portion of a pencil type writing material.; a middle part that has a first well securing the head part to it; and a tail part connected to the middle part, and having a second well to allow the head part of another writing tip to be received therein. Preferably, a stop structure is configured in the opening of the second well to stop the middle part of the other writing tip when the head part of the other writing tip is inserted to be received in the second well. In this way, it is possible to prevent the tip of the head part from being held against the lower part of the middle part of a last writing tip, in order to avoid damage to the head part. Generally, the series of replaceable writing tips aligns itself by the head-to-tail connection. The head part and the tail part can be oriented to the intermediate portion and to the holding portion, respectively, in the hollow passage. Alternatively, the head portion and the tail portion may be oriented to the fastening portion and the intermediate portion, respectively, in the hollow passage. In this case, it is feasible to make a head part of the series of replaceable writing tips in the hollow passage protrude from the holding portion, to provide an alternate writing tip to leave marks on the work surface. According to a seventh aspect of the present invention, the elbow pen having the essential writing portion, the holding portion, and the intermediate portion, mentioned above, is characterized in that the writing tip is connected to a soaking refill. ink by means of a connector. In one embodiment, the ink soaking replacement is configured inside a hollow passage of the holding portion, for storing and supplying ink. The connector _ *******. , is configured inside the intermediate portion, and substantially connected between one end of the ink soaking refill and one end of the writing tip, for the purpose of allowing the writing tip to obtain the ink from the ink soaking refill. Certainly, in another embodiment, the connector can be formed integrally to the writing tip, or formed integrally to the ink soaking part. In accordance with the foregoing, the ink soaking refill is made of liquid adsorbing material, and the connector is made of a liquid adsorbent material as well. Alternatively, the connector is an introduction tube made of a metal material for introducing the ink from the ink soaking refill to the writing tip. Preferably, the writing tip is a brush-type writing tip. In addition, the elbow pen also includes an upper lid that engages detachably with an opening of the holding portion.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention can be better understood through the following description with reference to the accompanying drawings in which: Figure IA shows schematically the use of a bent pen, compared to the use of a linear pen.

Figure IB schematically shows the use of a layered pen together with a ruler. Figure 2 shows schematically an elbow pen described in the United States Patent of • 5 North America Number 655,731. Figure 3 schematically shows the use of an elbow pen described in U.S. Patent Number 5,527,124. Figure 4 schematically shows an elbowed pen 10 described in United States Patent Number 849,513. Figure 5 is a side view of a bent pen, to schematically show the basic structure of the elbow pen of the present invention. Figure 6 is a top view of an intermediate portion of a bent pen, having the basic structure of Figure 5, wherein the intermediate portion has two concavities on both sides thereof. (H) Figure 7A is a side view of a portion 20 intermediate of an elbowed pen, having the structure of Figure 6, to schematically show a modification of the elbowed pen of Figure 6. Figures 7B-7D are partial front views of elbowed pens, to schematically show three examples 25 of the intermediate portion of Figure 7A, respectively.

Figure 8 is a cross-sectional view of an elbow pen, to schematically show another modification of the elbow boom of Figure 6. Figure 9 is a cross-sectional view of a first 5 preferred embodiment of an elbow pen having the basic structure of Figure 5, and including a lighting device in accordance with the present invention. Figure 10 is a side view of a second preferred embodiment of a layered feather having the basic structure of Figure 5, and including a • lighting device in accordance with the present invention. Figure 11 is a side view of a third 15 preferred embodiment of an elbow pen having the basic structure of Figure 5, and including a lighting device in accordance with the present invention. fl} Figure 12 is a cross-sectional view of a fourth The preferred embodiment of an elbow pen having the basic structure of Figure 5, and including a lighting device in accordance with the present invention. Figure 13 is a front view of a fifth preferred embodiment of an elbow pen having the basic structure of Figure 5, and including a lighting device in accordance with the present invention. Figure 14A is a partial side view of a sixth preferred embodiment of an elbow pen having the basic structure of Figure 5, and including a lighting device in accordance with the present invention. Figure 14B is a cross-sectional view schematically showing the lighting device mounted on the soft bearing of the elbow boom of Figure 14A. Figures 15A and 15B are side views of a first preferred embodiment of an elbow boom having the basic structure of Figure 5, and including a boom cap in accordance with the present invention, wherein the boom cap is cap on the writing portion and the holding portion, respectively. Figures 16A and 16B are side views of a second preferred embodiment of an elbow pen having the basic structure of Figure 5, and including a pen cap in accordance with the present invention, wherein the pen cap is cover over the writing portion and the holding portion, respectively. Figure 17 is a solved diagram of a first preferred embodiment of an elbow boom having the basic structure of Figure 5, and combined by two pieces. Figure 18 shows schematically a way of combination of the two pieces of the elbow pen of Figure 17. Figure 19 schematically shows a manner of combining the two pieces of a second preferred embodiment of a cylindrical pen according to the present invention, which has the basic structure of the Figure 5 and is combined by two pieces. Fig. 20 schematically shows a manner of combining the two pieces of a third preferred embodiment of a cylindrical feather according to the present invention, which has the basic structure of Fig. 5 and is combined by two pieces. Figure 21 is a partially solved diagram of a fourth preferred embodiment of an elbow pen having the basic structure of Figure 5, and having the intermediate portion combined by two pieces. Figure 22 schematically shows a manner of combining the two pieces of a fifth preferred embodiment of a cylindrical pen according to the present invention, having the basic structure of Figure 5, and having the intermediate portion combined by two pieces. Figure 23 is a perspective view of a first piece of the intermediate portion of a sixth preferred embodiment of an elbow pen according to the present invention, having the basic structure of Figure 5, and having the intermediate portion combined by two pieces. Fig. 24 schematically shows a manner of combining the three pieces of a seventh preferred embodiment of an elbowed feather according to the present invention, having the basic structure of Fig. 5, and having the intermediate portion combined by three pieces. Figure 25A is a partially solved diagram of an eighth preferred embodiment of an elbow pen having the basic structure of Figure 5, and which is combined by two pieces. Figure 25B schematically shows a manner of combining the two pieces of the elbow pen of Figure 25A. Figure 25C schematically shows a manner of combining the two pieces of a ninth preferred embodiment of a cylindrical pen according to the present invention, having the basic structure of Figure 5, and which is combined by two pieces. Figure 26A is a partially solved diagram of a tenth preferred embodiment of an elbow pen having the basic structure of Figure 5, and which is combined by three pieces. Figure 26B schematically shows a manner of combining the three pieces of the elbow pen of Figure 26A.

Figure 26C schematically shows another manner of combining the three pieces of the elbow pen of Figure 26A. flk Figures 27A and 27B schematically show a 5 way of combination of the elbow pen having the basic structure of Figure 25A, and including an ink refill in accordance with the present invention, wherein the ink refill is installed inside the armed elbow pen. Figures 28A and 28B schematically show a combination way of the elbow pen having the • basic structure of Figure 25A, and including an ink refill according to the present invention, wherein the ink refill with a long upper portion is 15 installed inside the armed layered pen. Figures 29A, 29B and 29C schematically show a combination way of the elbow boom having the basic structure of Figure 25A, and including a write-tip retraction element in accordance with The present invention, wherein the writing tip retraction element is installed inside the elbow pen, to selectively retract the writing tip within the writing portion. Figure 30 is a cross-sectional view of a first The preferred embodiment of an elbow pen having the basic structure of Figure 5, and including a linear hollow passageway for accommodating replaceable writing tips therein in accordance with the present invention. Figure 31 is a cross-sectional view of a second preferred embodiment of an elbow pen having the basic structure of Figure 5, and including a linear hollow passageway for accommodating replaceable writing tips therein in accordance with the present invention. Figure 32 schematically shows a way of connecting a series of replaceable writing tips stored in the linear hollow passage of the elbow boom of Figure 31. Figure 33 is a cross-sectional view of a third preferred embodiment of a layered pen that has the basic structure of Figure 5, and including a linear hollow passageway for accommodating replaceable writing tips therein in accordance with the present invention. Figures 34A and 34B schematically show a combination way of the elbow pen having the basic structure of Figure 25A, and including an assembly-type ink refill in accordance with the present invention, wherein the exchange of ink type assembly has a connector connected between the ink soak refill and the writing tip. Figures 34C-34F show schematically ai k different ways of combining the writing tip and the connector of Figure 34A.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES The present invention will now be described more specifically with reference to the following embodiments. It will be noted that the following descriptions of the preferred embodiments of this invention are presented herein for purposes of illustration and description only; they are not intended to be detailed or limited to the precise form described. Please refer to Figure 5, which shows a basic structure of an elbow pen in accordance with the present invention. The elbow pen includes a holding portion 51, an intermediate portion 52, and a writing portion 53. The intermediate portion 52 is connected between an end 511 of the holding portion 51, and an end 531 of the writing portion 53, for placing the holding portion 51 and the writing portion 53 on different axes, and creating a vacuum 54 between the writing portion 53 and the holding portion 51. While writing, the holding portion 51 can be supported by the hand of a user's writing between the thumb and the index finger, and the tips of the thumb and index finger (see Figure IA or IB) can rest on two sides of the intermediate portion 52, respectively, in accordance with the writing habit of the users in general. A writing tip 532 is mounted to the writing portion 53, to leave marks on a work surface 55, for example, to write or draw on a piece of paper. It is clear that the provision of the vacuum 54 below the intermediate portion 52, between the writing portion 53 and the holding portion 51, allows the user's line of sight to extend on both sides of the writing tip 532. it should be noted that the term "pen" indicated herein may be any kind of writing tool such as fountain pen, ball pen, pencil, brush, coloring pen, electronic detector pen, etc., as long as a tip is mounted writing adequate to the writing portion of the elbow pen.

MODALITIES OF STITCHED PENS THAT HAVE CONCAVIDADES IN THE INTERMEDIATE PORTION In order to make the operations of subjection and writing soft and comfortable, two sides of the intermediate portion are made to have two concavities 61 and 62 that accommodate the curvatures of the yolks of the thumb and forefinger, respectively, as shown in Figure 6 which is a schematic top plan view of the elbowed pen of Figure 5.

In addition to the two concavities 61 and 62, it is preferred that an upper surface 71 of the intermediate portion 52 be comfortable for the index finger of the user's writing hand, to press against it, to facilitate the fastening operations and writing. Due to the provision of that upper surface, the user can optionally hold the elbow pen in a manner like that shown in Figure IA or IB, or in a manner like that shown in Figure 7A. it should be noted that in Figure 7A the arrow indicates the pressing force of the index finger on the upper surface. As for the shape of the upper surface, it can be flat (Figure 7B), concave (Figure 7C) or convex (Figure 7D), as long as it is comfortable for the pressure finger. Preferably, but not necessarily, a hollow passage 81 is configured inside the elbow boom, and extends through the writing portion 53, the intermediate portion 52 and the holding portion 51, as shown in Figure 8, to accommodate therein a supply of writing material 533 corresponding to the writing tip 532. For example, if the layered pen is a brush, no passage is required. On the other hand, if the elbow pen is a spherical pen, an elongated ink refill is generally connected to the writing tip 532 to supply ink. Thus, the passage 81 is needed to accommodate the ink refill 533. For the purpose of making the ink supply relatively smooth, the passage 81 preferably penetrates the bent intermediate portion 52, through a relatively short path. On the other hand, for the purpose of allowing the ink refill to penetrate through the smoothly bent intermediate portion, it is preferred to make a lower portion 521 of the intermediate portion 52 longer than an upper portion 522 thereof, in transverse area . 10 MODALITIES OF LIGHTED BOOMS HAVING LIGHTING DEVICE In order to allow an elbowed pen to be used in a relatively dark environment, a lighting device may be provided in the intermediate portion to illuminate an area near the writing tip Please refer to Figure 9, which is a first preferred embodiment of an elbow pen including flb a lighting device in accordance with this 20 invention. As shown, the lighting device 911 is mounted to a lower portion 521 of the intermediate portion 52, and is located within the void 54 between the writing portion 53 and the holding portion 51. The presence of the vacuum 54 not only allows the line of sight of the The user extends on both sides of the writing tip, ^^^^^^^ while writing or drawing, but also allows the light emitted from the lighting device 911 to reach the area 92, near the writing tip 532. Also, if the writing tip 532 is substantially located on an extension line 512 of the holding portion 51, the light emitted from the lighting device can be centered 911 at the writing tip 532, for the purpose of improving the illuminating effect. The 911 lighting device is a light bulb which is a point of light that has a size and manner of lighting suitable for a pen, and a battery 912 is installed in the holding portion 51, to provide power for the light bulb 911, by means of a wire 913. For the purpose of saving electrical energy from the battery 912, in this embodiment a switch 914 mounted on a end portion of the holding portion 51, to control the provision of energy from the battery 912 to the light bulb 911. The switch 914 is an exposed rotating disc, and the user can control the turning on and off of the light bulb 911 by half to rotate the disc. Please refer to Figures 10 and 11, which are a second and a third preferred embodiments of the elbowed pens that include lighting devices, in accordance with the present invention, respectively. As - * '- ..... shown, for each of the elbowed pens, the intermediate portion 52 and the writing portion 53 are transparent, such that the light bulb 911 can be mounted in ^) any position within the intermediate portion 52, by example, at the bottom 521 (Figure 10) or at a position 523 near the connection between the intermediate portion and the writing portion (Figure 11). If the intermediate portion is not transparent, the lighting device can still be mounted inside of 10 the intermediate portion, in a lower part, near a connection position between the intermediate portion and the holding portion. In this case, however, an opening 111 must be configured in the lower part 521 below the light bulb 911, to allow the light to be transmitted outside. 15 of the intermediate portion 52, to arrive at the area 92 near the writing tip 532, as shown in Figure 12. It is evident that the farther away the light bulb 911 of the aperture 111 is installed, the smaller it becomes the lighting area 92. Therefore, the position of the tip of The writing 532 must be configured to be properly located within the illumination area 92. In other words, the writing tip 532 is preferably located at an extension line 512 of the holding portion 51, such that the light issued from the bulb 25 light 911 can reach the writing tip 532.

In another embodiment, the lighting device 911 is mounted on a front surface 524 of the intermediate portion 52, as shown in FIG. 13. In a further embodiment, the intermediate portion 52 includes a removable soft bearing 525 at the bottom, as shown in Figure 14A, which makes the middle finger of the user's writing hand optionally held against the user feel comfortable while writing. The lighting device 911 is attached to the soft bearing 525, as shown in Figure 14B.

MODALITIES OF STITCHED PENS THAT HAVE BOOM CAP In order to avoid staining, and to be convenient to carry, a pen cap is provided for the elbow pen that has the basic structure of Figure 5. Please refer to the Figures 15A and 15B, which are side views of a first preferred embodiment of an elbow pen having the basic structure of Figure 5, and including a pen cap in accordance with the present invention, in which the pen cap is capped. in the writing portion and the holding portion, respectively. The pen cap 15 includes a hollow tube 151 and a clamp strip 152 attached to the hollow tube 151, and there is a special angle α between the hollow tube 151 and the clamp strip 152. When the elbow pen is not in use , the writing portion 53 is received in the hollow tube 151 to prevent staining of the writing tip 532. Meanwhile, the clamp strip 152 will become axially parallel to the holding portion 51 when the hollow tube 151 covers the writing portion 53, for the purpose of cooperating with the holding portion 51, to allow the elbow pen to hold a holding part such as a pocket garment, a piece of paper, or a plastic feather holding sleeve. of a notebook. When the elbow pen is in use, the hollow tube 151 can be taken out from the writing portion 53, and an end portion 513 of the holding portion 51 can be covered. If it is not desired to have the angle a between the hollow tube and the strip When the hollow tube covers the end portion of the clamping portion, as shown in Figure 15B, the clamp strip can be made to be pivotally attached over the hollow tube, to solve this problem. Please refer to Figures 16A and 16B, the clamp strip 162 can be rotated pivotally so that it has the angle a with the hollow tube 161, to become axially parallel to the clamping portion 51, when the hollow tube covers the the writing portion 53, and can be rotated pivotally to become axially parallel to the hollow tube 161 and to the holding portion 51, when the hollow tube 161 covers the end portion 513 of the holding portion 51.

MODALITIES OF ASSEMBLED TYPE PLUMBING PENS In order to make the fabrication of an easy elbowed pen, the intermediate portion of a cylindrical feather having a curved passage can be formed, by combining at least two separate pieces, in accordance with the present invention. Referring to Figure 17, the elbow pen is formed by the combination of two separately integrally formed pieces 171 and 172, wherein a first piece 171 forms a portion of the writing portion 53, the intermediate portion 52 and the holding portion. 51, and a second part 172 forms the other part of the writing portion 53, the intermediate portion 52, and the holding portion 51. The first and second parts 171 and 172 can be combined by gear engagement, as shown in FIG. Figure 18. In another embodiment shown in Figure 19, the elbow pen is also formed by the combination of two integrally formed parts separately, wherein a first piece 191 forms a part of the intermediate portion 52 and the portion of clamping 51, and a second part 192 forms the writing portion 53, and the other part of the intermediate portion 52 and the clamping portion 51. The first and second parts 191 and 192 are combined by of pivotally connecting the first part 191 with the second part 192, teg¡ as indicated by the arrow. In a further embodiment shown in Figure 20, the elbow pen is also formed by the combination of two integrally formed parts separately, wherein a first piece 201 forms a part of the intermediate portion 52 and the holding portion 51, and a second piece 202 forms the writing portion 53, and the other part of the intermediate portion 52 and the holding portion 51. The first and second pieces 201 and 202 are combined by pivotally connecting the first piece 201 with the second piece 202, as indicated by the arrow. In addition to the above embodiments in which the first part includes a portion of the holding portion and a portion of the intermediate portion, the first part may also be part of the intermediate portion only, such as a back surface or a side surface . Please refer now to Figure 21. The elbow pen is formed by combining a first piece 211 as a back surface with a second piece 212 that includes the writing portion 53 and the other part of the intermediate portion 52, and then screwing the writing portion 53 and the intermediate portion 52 to the holding portion 51. In this embodiment, the first piece 211 is a soft bearing. The elbow pen combined by many parts has the advantage of being easy to make, and in addition, the provision of the soft bearing 211 as the back surface of the intermediate portion allows the middle finger of the user's writing hand to be held against the same while writing, to feel comfortable. On the other hand, Figure 22 schematically shows a first piece 221 that serves as a side piece to be combined with a second piece 222 that includes the writing portion 53 and the other part of the intermediate portion 52. Alternatively, the first piece may be a part 231 that serves as a back and two side surfaces of the intermediate portion, as shown in Figure 23. In a further embodiment shown in Figure 24, the elbow pen is formed by the combination of many parts integrally separately formed 241, 242 and 243, wherein the pieces 241 and 242 form two opposite lateral surfaces of the intermediate portion 52, respectively, and the piece 243 forms the writing portion 53 and the other part of the intermediate portion 52. The The writing portion and the intermediate portion combined are then screwed to the holding portion to form the elbow pen. Please refer to Figure 25A. In yet another embodiment shown in Figure 25A, the elbow pen is also formed by the combination of two integrally formed parts separately, wherein a first piece 271 forms the holding portion 51 and a portion of the portion • * - * - * intermediate 52, and a second piece 272 forms the writing portion 53 and the other part of the intermediate portion 52. The first piece 271 and the second piece 272 can be combined by means of a toothed gear, as shown in FIG. shown in Figure 25B. Alternatively, in another embodiment shown in Figure 25C, the elbow pen is also formed by the combination of two integrally formed parts separately. The first part 273 forms the holding portion 51 and the intermediate portion 52, and the second part 274 forms the writing portion 53. The first part 273 and the second part 274 can be combined by a toothed gear. In a further embodiment shown in Figure 26A, the elbow pen is formed by the combination of many integrally formed parts separately, wherein a first piece 261 forms a part of the intermediate portion 52, a second piece 262 forms the other part of the intermediate portion 52 and the writing portion 53, and a third part forms the holding portion 51 (not shown). The first piece 261 and the second piece 262 can be combined by gear engagement, as shown in Figure 26B. In addition, the combined intermediate portion and writing portion can be connected to the fastening portion by screwing. Alternatively, the connection interface between the first part 261 and the second part 262 can be modified to different shapes, as shown by the dotted line x-x, y-y, or z-z in Figure 26C. In this way, an ink refill 275 can easily be installed inside the flip-up jib-type feather, as shown in Figs. 27A and 27B. Indeed, an ink refill 276 with a long upper portion inside the jointed type assembly pen can also be easily installed, as shown in Figures 28A and 28B. For the purpose of producing a retractable elbow pen, a retraction element of the writing tip is provided. Please refer to Figure 29A. The elbow pen has a basic structure equal to that of Figure 25A. In this embodiment, the elbow pen utilizes a retraction element of the writing tip to selectively retract the writing tip within the writing portion. The retraction element of the writing tip includes a button 279 which meshes with an opening of the holding portion 51, and has a hollow tube for receiving the upper part of the ink refill 277, for the purpose of allowing the ink refill 277 is selectively pushed down with respect to the holding portion 51, in response to the operation of a user. In addition, there is a spring 278 installed around the ink refill 277 between a fixing element 2771 of the ink refill 277, and an inner surface of the elbow pen. The spring 277 has a first end that pushes against the fixing element 2771 of the ink refill 277, and a second end that pushes against an inner surface of the elbow pen, for the purpose of forming an elastic force to the ink refill 277 , in response to the movement of the ink refill 277. Preferably, the second end of the spring 277 is a resilient rod that pushes against the lower portion of the intermediate portion 52. In accordance with the above, when the button 279 is pressed, the Writing tip 532 extends outside writing portion 53, as shown in Figure 29C. When button 279 is released, the tip of • writing 532 is pulled into writing portion 53, as shown in Figure 29B. In this way, the retractable elbow pen can be easily and quickly assembled. 15 MODALITIES OF STITCHED PENS THAT HAVE AN INTERNAL SPACE TO STORE REPLACEABLE WRITING POINTS In order to make a suitable elbow pen to use replaceable writing tips, a 20 linear hollow passage to accommodate the replaceable writing tips, in accordance with the present invention. Referring to Figure 30, the elbow pen includes a linear hollow passage 25 having both ends 251 and 252 thereof open in the air, and extending 25 axially through the holding portion 51 and the intermediate portion 52, to accommodate therein a series of replaceable writing tips 534. As shown, each of the writing tip 532 and the replaceable writing tips 534 is of a pencil-like writing material of a short-rod shape, and includes a tapered writing portion 535 and a cylindrical base portion 536. When the writing tip 532 becomes dull after being used for a period of time, it is can be pulled out of the writing portion 53, and inserted into the holding portion 51 from the end 252 of the passage 25. Due to the pushing force that is the result of the insertion of the writing tip used, all the tips of replaceable writing 534 will move to the other end 251 of the passage 25, and one of these writing tips 534 will be pushed out of the end 251. After the above, the writing tip that was lowered into the writing portion 53 is inserted as a substitute writing tip 532. It should be noted that the term "pencil" or "pencil type writing material" as used herein indicates any kind of tool or writing material or drawing that will shorten and dull due to rubbing with a work surface to leave a portion of the material as marks on the work surface. For example, this can be a 2H or 2B black pencil, a colored pencil or a crayon.

Refer to Figure 31, which schematically shows another preferred embodiment of a cylindrical pen of a replaceable pencil type. The elbow pen also includes a linear hollow passage 25, which has both ends 251 and 252 thereof open to the air, and extends axially through the holding portion 51 and the intermediate portion 52, to accommodate therein a series of replaceable writing tips 534. In the same manner, each of the writing tip 532 and the writing tips 10 replaceable 534 is of a short rod shape. Referring further to Figure 32, each of the writing tips 532 and 534 includes a head portion 537 of a pencil type writing material, a middle portion 538 having a first well 5381 that secures the same. 15 the head portion 537, and a tail portion 539 connected to the middle portion 538, and having a second well 5391 to allow the head portion 537 of another writing tip 534 to be received therein. When the head part of a next writing tip is inserted to 20 being received in the second well, a stopping structure 5392 configured in the opening of the second well 5391, stops the middle part 538 of the next writing tip, to prevent the tip of the head part 537 from being held against the part lower of the middle part 538, 25 for the purpose of avoiding damage to the head part 537.

In this way, the series of replaceable writing tips aligns itself by the head-to-tail connection. As shown in Figure 31, all the head parts 537 are oriented to the end 251, and the entire tail portion 5 is oriented to the holding portion 252, respectively, in the hollow passage 25. Therefore, when the writing tip 532 is reached after being used for a period of time, it can be taken out of the writing portion 53, and inserted into the 10 the holding portion 51 from the end 252 of the passage 25. Due to the pushing force that is the result of the • insertion of the used writing tip, all replaceable writing tips 534 will move towards the other end 251 of the passage 25, and one of these writing tips 534 will be 15 will push off the end 251. After the above, the writing tip that lowered into the writing portion 53 is inserted as a substitute writing tip 532. Alternatively, head part 537 and part flB > 539 tail can also be oriented to the extremes 20 252 and 251, respectively, of the hollow passage 25, as shown in Figure 33. In this case, it is feasible to cause a head portion 540 of the series of replaceable writing tips in the hollow passage to protrude from the portion of clamping 51, to provide an alternate writing tip 25 to write or draw. When the writing tip 532 or When it becomes dull after it has been used for a period of time, it can be removed from the writing portion 53 or the holding portion 51, and inserted into the intermediate portion 52 from end 251 of passageway 25. Due to the pushing force that is the result of the insertion of the used writing tip, all replaceable writing tips 534 will move toward the other end 252 of passage 25, and one of these writing tips 534 will be pushed out of the end 252, to be inserted into the 10 writing portion 53 as a substitute writing tip 532, or to replace writing tip 540. • By the way, a pencil-type elbow pen has an additional advantage for writing or drawing in different thicknesses. By rotating the elbow pen to guide 15 the axis of the writing tip to a specific direction, the angle between the writing tip and the work surface can be changed, so that the area of the writing tip in contact with the work surface also . { can be different. In accordance with the above, the 20 marks left on the work surface vary in thickness with the rotation of the elbow pen.

MODALITIES OF STITCHED PENS THAT HAVE A REPLACEMENT OF INK TYPE ASSEMBLY 25 Please refer to Figures 34A and 34B. The pen * - - - • • L-shaped has a basic structure similar to that of Figure 25A Inside the cylindrical pen, an assembly-type ink refill is installed The ink-type assembly includes an ink-soaking refill 341, configured in the hollow passageway of the holding portion 51 for storing and supplying ink, and a connector 342 configured within the hollow passageway of the intermediate portion, and connected between one end of the ink soaker refill 341 and one end of the writing tip 343. The ink soaker refill 341 is made of liquid adsorbent material Incidentally, the writing tool can be modified to a cylindrical pen having an ink soaking refill, such as one of different brands of charge pens Alternatively, the connector 342 can be modified to different shapes, which is well known to one skilled in the art, as shown in Figures 34C, 34D, 34E, and 34F. The connector 342 is made of a liquid adsorbent material. More preferably, the connector 342 is an insertion tube made of a metal material, for introducing the ink from the ink soaking part 341 to the writing tip 343. In addition, the writing tip 343 can be a tip brush type writing, as shown in Figure 34D. In order to thin the brush-type writing tip 343, the brush-type writing tip 343 can be surrounded with an outer skin, as shown in Figure 34E. certainly, in another embodiment, the writing tip 343 is made of a liquid adsorbent material, as shown in Figure 34F. The manner of combination between the writing tip 343 and the connector 342 can be modified to different shapes, as shown in Figures 34C, 34D, 34E, and 3s 34C, 34D, 34E, and 34F. Indeed, in another embodiment, the connector 342 can be formed integrally with the writing tip 343 (as shown in Figure 34E), or it can be formed integrally with the ink soaker refill 341. In addition, the elbow pen can be modified to have an upper lid that engages detachably with an opening of the portion of fastening, in such a way that the ink can be easily exchanged. To summarize, the present invention uses a non-linear design for the fastening portion and the writing portion of a writing tool, for adjusting the angle between the writing portion and a work surface at approximately 90 degrees. In addition, the curving of 1 front portion of the elbow pen eliminates obstruction of the user's line of sight. In addition, the line drawing operation can be more precise compared to the conventional one. On the other hand, the lateral surfaces with concavi- * i **,? ** & - $ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - The provision of a lighting device allows the elbow pen to be used in a relatively dark environment. The provision of the specific pen cap allows the layered pen to be conveniently carried. By combining at least two pieces manufactured separately, the elbow pen having a curved passage can easily be made 10 the same. By providing a linear hollow passage having both ends thereof open in the air, and extending axially through the holding portion and the intermediate portion, a series of replaceable writing tips can be accommodated therein. material of 15 supply. Many designs have also been made to the present invention to improve its appeal. Although the invention has been described in terms of what we currently consider the most practical and preferred modalities, it will be understood that the invention is not needed 20 limit to the modality described. On the contrary, it is intended to cover different modifications and similar configurations included within the spirit and scope of the appended claims, which will be granted with the broadest interpretation, in order to cover all 25 those modifications and similar structures. . ** . **, *** _ *.,. ** *. ***.

Claims (1)

1. CLAIMS 1. A cylindrical pen comprising: a holding portion for the support of a user's writing hand; a writing portion for mounting on it a writing tip to leave marks on a work surface; and an intermediate portion substantially connected between one end of the holding portion and one end of the writing portion, to position the holding portion and the writing portion on different axes, and create a gap between the writing portion and the portion of subject; and characterized in that the intermediate portion has two concavities on two sides thereof, respectively, optionally provided for two fingers of the user's writing hand to rest therein, in order to facilitate the clamping and writing operations. 2. The elbow pen according to claim 1, wherein while writing, the holding portion is supported between the thumb and the index finger of said user's writing hand, and the tips of the thumb and index finger of the user. The user's writing hand rests on those two concavities. f * MÍBÍ »ikiÍllÉii 3. The elbow pen according to claim 1, wherein the intermediate portion also has a top surface optionally provided for a finger tip of the user's hand to press to facilitate the operations of Holding and writing while writing. The elbow pen according to claim 3, wherein the finger of the user's hand to press against said top surface while writing is the index finger. The elbow pen according to claim 3, wherein the top surface of that intermediate portion is a flat surface. 6. The elbow pen according to claim 3, wherein the top surface of that intermediate portion is a concave surface. The angled pen according to claim 3, wherein the upper surface of that intermediate portion is a convex surface. The cranked feather according to claim 1, wherein a hollow passageway is configured within the elbow boom, and extends through the writing portion, the intermediate portion, and the holding portion, to accommodate the the writing tip itself and a supply of writing material corresponding to the writing tip. The elbow pen according to claim 8, wherein a lower portion of the intermediate portion is longer than the upper portion thereof in transverse area, such that the supply of writing material penetrates through the intermediate portion gently. The elbow pen according to claim 9, wherein the elbow pen is a ball pen, and the supply of writing material is an elongated ink refill. 11. A cylindrical pen comprising: a holding portion for the support of a user's writing hand; a writing portion for mounting thereto a writing tip to leave marks on a work surface - an intermediate portion substantially connected between one end of the clamping portion and one end of the writing portion, for positioning the clamping portion and the writing portion on different axes, and creating a gap between the writing portion and the holding portion; and a lighting device mounted to that intermediate portion, to illuminate an area near said writing tip. 12. The elbow pen according to claim 11, wherein the lighting device is mounted on a lower portion of the intermediate portion, and is , ^ located inside the gap between the writing portion and the holding portion. 13. The elbow pen according to claim 11, wherein the intermediate portion is transparent, and the lighting device is mounted inside the intermediate portion. 10 14. The elbow pen in accordance with the ^^ claim 11, wherein the lighting device is mounted inside the intermediate portion, at a lower part near a connection position between the intermediate portion and the holding portion, and an opening is configured in the 15 below, under the lighting device, to allow light to be transmitted outside the intermediate portion, to reach the area near the writing tip. fl 15. The elbow pen in accordance with 20 claim 14, wherein the writing tip is substantially located on an extension line of the holding portion, such that the light emitted from the lighting device can be centered on the writing tip. 16. The elbow pen in accordance with the It is claimed in claim 14, wherein the intermediate portion includes a soft removable bearing in said lower part, and the lighting device is joined in the soft bearing. 17. The elbow pen according to claim 5, wherein the lighting device is mounted on a front surface of the intermediate portion. 18. The elbow pen according to claim 11, wherein the writing portion is transparent, and the lighting device can be mounted 10 inside the intermediate portion, in a position close to the connection between the intermediate portion and the portion of • writing. 19. The elbow pen according to claim 11, wherein said lighting device 15 is a point light source. 20. The elbow pen according to claim 19, wherein said lighting device is a light bulb. flk 21. The elbow pen in accordance with 20 claim 11, wherein in the fastening portion a battery is installed to supply power to the lighting device. 22. A cylindrical pen comprising: a holding portion for supporting the writing hand of a user; a writing portion for mounting on it a writing tip to leave marks on a work surface; (^ an intermediate portion substantially connected 5 between an end of said fastening portion and an end of said writing portion, for positioning the fastening portion and the writing portion on different shafts, and creating a gap between the writing portion and the fastening portion; and a pen cap including: g ^ a hollow tube for receiving the writing portion therein, to avoid staining the writing tip when the elbow pen is not in use; and a clamp strip attached on the tube 15 hollow, and having an angle with the hollow tube, to become axially parallel to the holding portion when the hollow tube covers the writing portion, for the purpose of cooperating with the holding portion, to allow the w ? Layered pen embraces a clamping piece. 23. The angled feather according to claim 22, wherein the hollow tube can cover an end portion of the fastening portion when the elbow feather is in use. 24. The elbow pen according to claim 23, wherein the clamp strip is pivotally attached to the hollow tube, such that the clamp strip can be rotated pivotally so that the angle with the hollow tube becomes stable. axially parallel to the holding portion, when the hollow tube covers the writing portion 5, and rotates pivotally to become axially parallel to the hollow tube, when the hollow tube covers the end portion of the holding portion. 25. A cylindrical pen, comprising: a holding portion for the support of a user's writing hand 10; a writing portion for mounting on it a writing tip to leave marks on a locking surface; an intermediate portion substantially connected 15 between an end of the fastening portion and an end of the writing portion, for positioning the fastening portion and the writing portion on different shafts, and creating a gap between the writing portion and the portion of subject; and characterized in that the elbow pen is formed by combining at least two separate pieces. 26. The elbowed pen according to claim 25, which is formed by the combination of two integrally formed parts separately, a first part of which forms a part of the writing portion, the intermediate portion and the portion of ^ as * ** kim * t ^. **** *. *, ***, -. . *? ^ t * ». *. && amp; *. "*.,. *. * .. -to-.. . * *. -. * jaaaJaaalM fastening, and a second piece of which forms the other part of the writing portion, the intermediate portion, and the fastening portion. 27. The elbow boom according to claim 26, wherein the first and second pieces are combined by toothed gear. The cranked feather according to claim 25, which is formed by the combination of two integrally formed parts separately, a first part of which forms a part of the intermediate portion and the fastening portion, and a second part of which the writing portion forms, and the other part of the intermediate portion and the holding portion. 29. The elbow pen according to claim 28, wherein the first and second parts can be combined by means of pivotally connecting the first part to the second part. 30. The elbowed pen according to claim 25, which is formed by the combination of three integrally formed parts separately, a first part of which forms a part of the intermediate portion, a second part of which forms the portion of writing and the other part of the intermediate portion, and a third piece of which forms the holding portion, and connecting the writing portion and the intermediate portion combined to the holding portion. 31. The elbow pen according to claim 30, wherein the first piece forms a side surface of said intermediate portion. 32. The elbow pen according to claim 30, wherein the first piece forms a rear surface of said intermediate portion. 33. The elbow boom according to claim 32, wherein the first piece is a soft bearing. 34. The elbow boom according to claim 30, wherein the writing portion and the combined intermediate portion are connected to the holding portion by screwing. 35. The elbowed pen according to claim 25, which is formed by the combination of four pieces integrally formed separately, a first piece of which forms a part of the intermediate portion, a second piece of which another part forms of the intermediate portion, a third piece of which forms the writing portion and the other part of the intermediate portion, and a fourth piece of which forms the holding portion, and connecting the writing portion and the intermediate portion combined to the holding portion. 36. The elbow pen according to claim 35, wherein said first and said second pieces form two opposite lateral surfaces of the intermediate portion, respectively. 37. The elbowed pen according to claim 25, which is formed by the combination of two integrally formed parts separately, a first piece of which forms the holding portion and a part of the intermediate portion, and a second part. piece of which forms the other part of the intermediate portion and the writing portion. 38. The elbow pen in accordance with the • claim 37, wherein the first and second pieces are combined by gear teeth. 39. The elbowed feather according to claim 25, which is formed by the combination of three integrally formed parts separately, a first piece of which forms a part of the intermediate portion, a second piece of which forms the another part fl of the intermediate portion and the writing portion, and a third piece of which forms the holding portion, and connecting the writing portion and the intermediate portion combined to the holding portion. 40. The elbow pen according to claim 39, wherein the writing portion and the The combined intermediate portion is connected to the fastening portion by screwing. 41. The elbow pen according to claim 39, wherein said first piece and said second piece are combined by toothed gear. 42. The elbow pen according to claim 25, which is formed by the combination of two integrally formed parts separately, a first part of which forms the holding portion and the intermediate portion, and a second part of which forms the writing portion. 43. The elbow pen according to claim 42, wherein the first piece and the second piece are combined by toothed gear. 44. The elbow pen according to claim 25, wherein the elbow pen further includes a write-tip retraction element for selectively projecting and retracting the writing tip with respect to the writing portion. 45. The elbow pen according to claim 44, wherein said writing tip retraction element includes: a button mounted on the upper end of the clamping portion, and has a hollow tube for receiving the upper end of a ink exchange, for the purpose of allowing that ink refill to be selectively pushed down with respect to the holding portion, in response to a user's operation; and a spring installed around the ink refill, and having a first end that pushes against a fixation element of the ink refill, and a second end that pushes against an inner surface of the elbow pen, for the purpose of forming a force elastic to the ink refill, in response to the movement of the ink refill. 46. The elbow plume according to claim 45, wherein the second end of the spring is a resilient rod that pushes against a lower portion of the intermediate portion. 47. The elbow pen according to claim 45, wherein the writing tip of the ink refill extends out of the writing portion when the button is pressed, and the writing tip of the ink refill is pulled into the Write portion when the button is released. 48. The elbow feather according to claim 25, wherein the elbow feather further includes a clamp strip attached to the clamping portion thereof, to allow the elbow feather to hold a clamping piece. 49. An elbow pen comprising: a holding portion for the hand to support . *-?****My . .. .. .. * .i a,, - - t r n ^ t ** ** of a user's writing; a writing portion for mounting on it a writing tip to leave marks on a work surface; and an intermediate portion substantially connected between one end of the fastening portion and one end of the writing portion, for positioning the fastening portion and the writing portion on different axes, and creating a gap between the writing portion and the writing portion. fastening portion; 10 and characterized in that a linear hollow passage having both ends thereof open in the air is • extend axially through the holding portion and the intermediate portion to accommodate therein a series of replaceable writing tips. 50. The elbow pen according to claim 49, wherein each of the writing tip and the replaceable writing tips, is of a short rod shape. (Fl 51. The elbow pen according to claim 50, wherein each of the writing tip and the replaceable writing tips is of a pen type writing material 52. The elbow pen according to claim 51 , wherein each of the writing tip 25 and the replaceable writing tips, includes a part of «-" - - * .-- * • aa - - ... aa. * .... *. * ^^^ ¡^ ^ tapered writing and a cylindrical base part 53. The layered plume of conformity with claim 50, wherein each of the writing tip and the replaceable writing tips includes: a head part of a pencil type writing material, a middle part having a first well securing the head part thereto; and a tail portion connected to the middle part, and having a second well to allow the head portion of another writing tip to be received therein 54. The elbow pen according to claim 53, wherein in the opening of the second well a stop structure is configured to stop the middle part of the other writing tip when the head part of the other writing tip is inserted to be received in the second well. according to claim 54, wherein said series of writing tips Replaceable is aligned to itself by connecting head to tail. 56. The elbow plume according to claim 55, wherein the head portion and the tail portion are oriented to the intermediate portion and to the holding portion, respectively, in the hollow passage. 57. The elbow pen according to claim 56, wherein the head portion and the tail portion are oriented to the holding portion and the intermediate portion, respectively, in the hollow passage. • 5 58. The elbow pen according to claim 57, wherein a head portion of the series of replaceable writing tips in the hollow passage protrudes from the holding portion, to provide an alternate writing tip to leave marks on the working surface 10. 59. An elbow pen comprising: • a holding portion for the support of a user's writing hand; a writing portion for mounting on it a writing tip to leave marks on a work surface; and an intermediate portion substantially connected between an end of said holding portion and an end of said writing portion, for positioning said holding portion and said writing portion on different axes, and creating a vacuum between said writing portion and said fastening portion; and characterized in that the writing tip is connected to an ink soaking refill by means of a connector. 'h .-. . : 60. The elbow pen according to claim 59, wherein the ink soaking refill is configured inside a hollow passage of the holding portion., to store and supply ink. 61. The elbow pen according to claim 59, wherein the connector is configured inside the intermediate portion, and substantially connected between one end of the ink soaking refill and one end of the writing tip, for the purpose of allowing that the writing tip gets the ink from the ink soaking refill. 62. The elbow plume according to claim 59, wherein the ink soaking refill is made of liquid adsorbent material. 63. The elbow pen according to claim 59, wherein the connector is made of a liquid adsorbent material. 64. The elbow pen according to claim 59, wherein the connector is an introducer tube made of a metal material. 65. The cylindrical pen according to claim 59, wherein the cylindrical boom also includes an upper cover that engages detachably with an opening of the holding portion. 66. The elbow pen according to claim 59, wherein the connector is formed integrally with the writing tip. 67. The elbow plume according to claim 59, wherein said connector is formed 5 integrally with said ink soaking refill. 68. The elbow pen according to claim 59, wherein the writing tip is a brush type writing tip. 69. The elbow pen according to claim 59, wherein the writing tip is made of a liquid adsorbent material. fifteen • twenty 25 SUMMARY An elbowed pen is described which includes a holding portion, a writing portion, and an intermediate portion substantially connected between one end of the holding portion and one end of the writing portion for positioning the holding portion and the writing portion. on different axes, and create a gap between the writing portion and the holding portion. By providing the vacuum for the elbow pen, the user's line of sight can be extended on both sides of the writing tip while writing or drawing. By providing a pen cap that includes a cap clamp specially designed for the elbow pen, the non-linear elbow pen can be secured on a clamping piece, e.g., the pocket of a shirt, vertically. By providing two concavities on both sides of the intermediate portion, the attachment and writing operations of the elbow pen can be relatively soft and comfortable. By providing a lighting device in the intermediate portion, the elbow pen can be used in a relatively dark environment. By combining at least two pieces manufactured separately, you can easily make the elbow pen that has the passage bent in it. Through . ? í *. * .- ** *** - * .i ** ***** * * * * * ***** ** - - -a * .-. *%. *?? gfekssa & A to provide a linear hollow passage having both ends thereof open in the air, and extending axially through the holding portion and the intermediate portion, can be accommodated therein a series of replaceable writing tips, as supply material.