Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
  • B43K23/008—Holders comprising finger grips
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K21/00—Propelling pencils
  • B43K21/003—Propelling pencils with lead sections or lead cartridges
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K21/00—Propelling pencils
  • B43K21/006—Pencil-barrels
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
  • B43K23/004—Holders specially adapted for assisting handicapped or disabled persons to write
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K27/00—Multiple-point writing implements, e.g. multicolour; Combinations of writing implements
  • B43K27/04—Combinations of pencils
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K29/00—Combinations of writing implements with other articles
  • B43K29/10—Combinations of writing implements with other articles with illuminating devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
  • B43K5/005—Pen barrels
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K7/00—Ball-point pens
  • B43K7/005—Pen barrels

Definitions

• the present invention is related to an offset pen. and more particularly to an improved offset pen structure for comfortable holding, enhanced functions, and easy making
• an offset pen which includes an intermediate portion between a holding portion, 1 e the pen stick, and a writing portion. 1 e the w ⁇ ting head, to make the holding portion and the writing portion positioned in different axes
• Figs 1A and IB schematically show how is an offset pen used to solve the above problems Please refer to Fig 1 A.
• an offset pen includes a holding portion A.
• the crooked intermediate portion B provides a structure suitable foi user ' s fingers to exert force on so as to lessen the load of user ' s fingers
• Fig IB in which an offset pen is used together with a raler R
• an offset pen including a holding portion A, an inte ⁇ nediate portion B and a writing portion C as mentioned above
• the writing portion C is approximately perpendicular to the working surface K so as to be in close contact with the side surface R2 of the raler R
• the user will be able to draw a line precisely as desired without being influenced by his palm st ⁇ icture and the thickness of the raler So far.
• several kinds of offset or shaped pens have been developed in spite they are provided for solving problems other than the above ones
• theie is no reference so far disclosing the manufacturing of the offset pen
• it is difficult to manufacture the housing of an offset pen integrally like injection molding the conventional linear pen because a crooked passage extending through the w ⁇ ting portion, the inte ⁇ nediate portion and the holding portion may be required for accommodating an ink reservoir or refill
• an objective of the present invention is to provide an offset pen having a vacancy beneath the lnte ⁇ nediate portion so that the user ' s vision line can be extended to both sides of the w ⁇ ting head through the vacancy while writing or drawing
• Another objective of the present invention is to provide an offset pen which includes a pen cap which has a specially designed cap clip to allow the nonlinear offset pen to be secured onto a holding piece, e g a pocket of a shirt, uprightly
• a further objective of the piesent invention is to provide an offset pen in which the intermediate portion is designed to make the holding and writing operations of the offset pen smooth and comfortable
• a yet objective of the present invention is to provide an offset pen which includes an illuminating device on the inte ⁇ nediate portion so that the offset pen can be used in a relatively dark environment.
• Still an objective of the present invention is to provide an offset pen which can be easily made by combining pieces separately manufactured.
• Still another objective of the present invention is to provide an offset pen which is especially suitable for using replaceable writing tips, e.g. replaceable pencil heads.
• an offset pen includes a holding portion to be supported by a user's writing hand; a writing portion to be mounted thereon a writing tip to leave marks on a working surface; and an intermediate portion substantially connected between one end of the holding portion and one end of the writing portion to make the holding portion and the writing portion positioned in different axes, and create a vacancy between the writing portion and the holding portion.
• the intermediate portion of the offset pen has two concavities on two sides thereof, respectively, optionally provided for two fingers of the user's writing hand to rest thereon so as to facilitate the holding and writing operations.
• the holding portion is supported between the thumb and the index finger of the user ' s writing hand, and tips of the thumb and the index finger of the user ' s writing hand rest on the two concavities.
• the intermediate portion has an upper surface optionally provided for the tip of the index finger of the user ' s writing hand to press against to further facilitate the holding and writing operations while writing.
• the shape of the upper surface it can be plane, concave or convex, as long as it is comfortable for the pressing finger.
• the offset pen further includes an illuminating device in addition to the essential writing portion, holding portion and inte ⁇ nediate portion mentioned above The illuminating device is mounted to the inte ⁇ nediate portion to lighten an area near the writing tip.
• the illuminating device can be mounted inside the inte ⁇ nediate portion If not, the illuminating device can also be mounted inside the intermediate portion at a lower part near a connection position between the intermediate portion and the holding portion In this case, however, an opening should be arranged at the lower part beneath the illuminating device to allow light to be transmitted out of the inte ⁇ nediate portion to reach the area near the writing tip
• the writing tip is substantially located in an extension line of the holding portion so that light emitted from the illuminating device can be centered on the writing tip
• the illuminating device can be mounted inside the intermediate portion at a position near the connection between the inte ⁇ nediate portion and the writing portion
• the illuminating device is mounted on a front surface of the inte ⁇ nediate portion
• the intermediate portion includes a detachable soft pad at the lower part, and the illuminating device can be attached on the soft pad
• the illuminating device is a point light source such as a light bulb
• a battery for supplying power for the illuminating device can be installed in the holding portion
• the offset pen f rther includes a pen cap in addition to the essential writing portion, holding portion and inte ⁇ nediate portion mentioned above
• the pen cap includes a hollow tube for receiving the writing portion therein to avoid blotting of the writing tip when the offset pen is not in use, and a clip strip attached onto the hollow tube, and having an angle with the hollow tube to become axially parallel to the holding portion when the hollow tube caps the writing portion so as to cooperate with the holding portion to allow the offset pen to clamp a holding piece
• the hollow tube can cap an end part of the holding portion when the offset pen is in use, and the clip strip is pivotally attached onto the hollow tube
• the clip strip can be pivotally rotated to have the angle with the hollow tube to become axially parallel to the holding portion when the hollow tube caps the writing portion, and pivotally rotated to become axially parallel to the hollow tube when the hollow tube caps the end part of the holding portion
• the offset pen having the essential w ⁇ ting portion, holding portion and inte ⁇ nediate portion mentioned above is characterized in that the intermediate portion is fo ⁇ ned by combining at least two separate pieces
• the offset pen is fo ⁇ ned by combining two separately integrally fo ⁇ ned pieces, wherein a first piece fo ⁇ ns a part of the writing portion, the inte ⁇ nediate portion and the holding portion, and a second piece fo ⁇ ns the other part of the writing portion, the inte ⁇ nediate portion and the holding portion
• the offset pen is fo ⁇ ned by combining two separately integrally fo ⁇ ned pieces, wherein a first piece forms a part of the inte ⁇ nediate portion and the holding portion, and a second piece fo ⁇ ns the writing portion, and the other part of the inte ⁇ nediate portion and the holding portion
• the first and the second pieces can be combined by pivotally connecting the first piece to the second piece
• the offset pen is formed by combining three separately integrally formed pieces, wherein a first piece forms a part of the intermediate portion, a second piece fo ⁇ ns the writing portion and the other part of the intermediate portion, and a third piece forms a holding portion, and screwing the combined inte ⁇ nediate portion and writing portion to the holding portion
• the first piece fo ⁇ ns a side or rear surface of the inte ⁇ nediate portion
• the first piece is preferably a soft pad allowing the middle fingei of the user ' s w ⁇ ting hand to sustain thereagamst while writing to feel comfortable
• the offset pen is formed bv combining several separately integrally fo ⁇ ned pieces, wherein a first piece fo ⁇ ns a part of the inte ⁇ nediate portion, a second piece fo ⁇ ns another part of the inte ⁇ nediate portion, and a third piece fo ⁇ ns the writing portion and the other part of the inte ⁇ nediate portion, and screwing the combined intermediate portion and writing portion to the holding portion
• the first and the second pieces fo ⁇ n two opposite side surfaces of the inte ⁇ nediate portion, respectively
• the offset pen is fo ⁇ ned by combining two separately integrally formed pieces, wherein a first piece fo ⁇ ns the holding portion and a part of the inte ⁇ nediate portion, and a second piece fo ⁇ ns the other part of the inte ⁇ nediate portion and the writing portion The first piece and the second piece are combined by tooth engagement
• the offset pen is formed by combining three separately integrally fo ⁇ ned pieces, wherein a first piece fonns a part of the inte ⁇ nediate portion, a second piece fo ⁇ ns the other part of the inte ⁇ nediate portion and the writing portion, and a three piece fo ⁇ ns the holding portion
• the combined writing portion and the inte ⁇ nediate portion is connected to the holding portion by screwing
• the first piece and the second piece are combined by tooth engagement
• the offset pen is formed by combining two separatelv integrally foimed pieces, wherein a first piece forms the holding portion and the intermediate portion, and a second piece forms the writing portion
• the first piece and the second piece are combined by tooth engagement
• the offset pen further includes a writing tip retractmg mean for selectively retracting the writing tip into the writing portion
• the writing tip retracting mean includes a
• the offset pen further includes a clip strip attached to the holding portion thereof to allow the offset pen to clamp a holding piece
• the offset pen in addition to the essential writing portion, holding portion and intermediate portion mentioned above, is further a ⁇ anged therein a linear hollow passage having both ends thereof open into the air, and axially extending through the holding portion and the inte ⁇ nediate portion for accommodating therein a series of replaceable writing tips
• 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
• each of the writing tip and the replaceable writing tips is of a short rod shape, and includes a head part of a pencil- type writing material, a middle part having a first well securing thereto the head part, and a tail part connected to the middle part and having a second well for allowing the head part of another writing tip to be received therein
• a stopper stracture is arranged at the opening of the second wall for stopping the middle part of the another writing tip when the head part of the another writing tip is inserted to be received in the second well
• the series of replaceable writing tips aligns itself by head- to-tail connection
• the head part and the tail part can be oriented to the intermediate portion and the holding portion, respectively, in the hollow passage
• the head part and the tail part can be oriented to the holding portion and the inte ⁇ nediate portion, respectively, in the hollow passage
• the offset pen having the essential writing portion, holding portion and inte ⁇ nediate portion mentioned above is characterized in that the writing tip is connected to an ink-soaking refill by a connector
• the ink-soaking refill is arranged within a hollow passage of the holding portion for storing and supplying ink
• the connector is a ⁇ anged within the intermediate portion and substantially connected between one end of the ink-soaking refill and one end of the writing tip so as to allow the writing tip to obtain the ink from the lnk- soaking refill
• the connector can be integrally fo ⁇ ned to the w ⁇ ting tip oi integrally fo ⁇ ned to the ink-soaking refill
• the ink-soaking refill is made of hquid-adsorptive material
• the connector is made of a hqmd-adsorptive material
• the connector is an introducing tube made of a metal material for introducing the ink from the ink-soakmg refill to the w ⁇ ting tip
• the writing tip is a brash-type writing tip
• the offset pen further includes an upper cap detachably engaging with an opening of the holding portion
• Fig 1A schematically shows the use of an offset pen compared to the use of a linear pen.
• Fig IB schematically shows the use of an offset pen together with a raler
• Fig 2 schematically shows an offset pen disclosed in US Patent No
• Fig 3 schematically shows the use of an offset pen disclosed in US Patent No 5,527, 124,
• Fig 4 schematically shows an offset pen disclosed in US Patent No 849,513,
• Fig 5 is a side view of an offset pen for schematically showing the basic stracture of the offset pen of the present invention.
• Fig. 6 is a top view of an intermediate portion of an offset pen having the basic structure of Fig. 5 wherein the inte ⁇ nediate portion has two concavities on both sides thereof,
• Fig. 7A is a side view of an inte ⁇ nediate portion of an offset pen having the stracture of Fig. 6 for schematically showing a modification of the offset pen of Fig. 6,
• Figs. 7B-7D are partial front views of offset pens for schematically showing three examples of the inte ⁇ nediate portion of Fig. 7A, respectively;
• Fig. 8 is a cross-sectional view of an offset pen for schematically showing another modification of the offset pen of Fig. 6,
• Fig. 9 is a cross-sectional view of a first prefe ⁇ ed embodiment of an offset pen having the basic stracture of Fig. 5 and including an illuminating device according to the present invention
• Fig. 10 is a side view of a second prefe ⁇ ed embodiment of an offset pen having the basic stracture of Fig. 5 and including an illuminating device according to the present invention
• Fig. 1 1 is a side view of a third prefe ⁇ ed embodiment of an offset pen having the basic stracture of Fig. 5 and including an illuminating device according to the present invention.
• Fig. 12 is a cross-sectional view of a fourth preferred embodiment of an offset pen having the basic stracture of Fig. 5 and including an illuminating device according to the present invention
• Fig. 1 is a front view of a fifth preferred embodiment of an offset pen having the basic stracture of Fig. 5 and including an illuminating device according to the present invention
• Fig. 14A is a partial side view of a sixth prefe ⁇ ed embodiment of an offset pen having the basic stracture of Fig 5 and including an illuminating device according to the present invention.
• Fig 14B is a cross-sectional view schematically showing the illuminating device mounted on the soft pad of the offset pen of Fig 14A
• Figs 15A and 15B are side views of a first preferred embodiment of an offset pen having the basic stracture of Fig 5 and including a pen cap according to the present invention, in which the pen cap is capped on the writing portion and the holding portion, respectively,
• Figs 16 A and 16B are side views of a second prefe ⁇ ed embodiment of an offset pen having the basic stracture of Fig 5 and including a pen cap according to the present invention, in which the pen cap is capped on the w ⁇ ting portion and the holding portion, respectively,
• Fig 17 is a resolved diagram of a first prefe ⁇ ed embodiment of an offset pen having the basic stracture of Fig 5 and combined by two pieces.
• Fig 18 schematically shows a combining manner of the two pieces of the offset pen of Fig 17,
• Fig 19 schematically shows a combining manner of the two pieces of a second preferred embodiment of an offset pen according to the present invention having the basic stracture of Fig 5 and combined by two pieces,
• Fig 20 schematically shows a combining manner of the two pieces of a third preferred embodiment of an offset pen according to the present invention having the basic stracture of Fig 5 and combined by two pieces,
• Fig 21 is a partially resolved diagram of a fourth prefe ⁇ ed embodiment of an offset pen having the basic stracture of Fig 5 and having the inte ⁇ nediate portion combined by two pieces.
• Fig 22 schematically shows a combining manner of the two pieces of a fifth prefe ⁇ ed embodiment of an offset pen according to the present invention having the basic stracture of Fig 5 and having the inte ⁇ nediate portion combined by two pieces.
• Fig 23 is a perspective view of a first piece of the inte ⁇ nediate portion of a sixth prefe ⁇ ed embodiment of an offset pen according to the present invention having the basic stracture of Fig 5 and having the inte ⁇ nediate portion combined by two pieces,
• Fig 24 schematically shows a combining manner of the three pieces of a seventh preferred embodiment of an offset pen according to the present invention having the basic stracture of Fig 5 and having the inte ⁇ nediate portion combined by three pieces.
• Fig 25A is a partial resolved diagram of an eighth preferred embodiment of an offset pen having the basic stracture of Fig 5 and combined by two pieces
• Fig 25B schematically shows a combining manner of the two pieces of the offset pen of Fig 25A
• Fig 25C schematically shows a combining manner of the two pieces of a ninth preferred embodiment of an offset pen according to the present invention having the basic stracture of Fig 5 and combined by two pieces
• Fig 26A is a partial resolved diagram of a tenth prefe ⁇ ed embodiment of an offset pen having the basic stracture of Fig 5 and combined by three pieces.
• Fig 26B schematically shows a combining manner of the three pieces of the offset pen of Fig 26 A
• Fig 26C schematically shows another combining manner of the three pieces of the offset pen of Fig 26A
• Figs 27A and 27B schematically shows a combining manner of the offset pen having the basic stracture of Fig 25 A and including an ink refill according to the present invention, in which the ink refill is installed into the assembled offset pen.
• Figs 28A and 28B schematically shows a combining manner of the offset pen having the basic structure of Fig 25 A and including an ink refill according to the present invention, m which the ink refill with a large upper portion is installed into the assembled offset pen,
• Figs 29A. 29B and 29C schematically shows a combining manner of the offset pen having the basic stracture of Fig 25 A and including a writing tip retracting mean according to the present invention, in which writing tip retracting mean is installed within the offset pen for selectively retracting the writing tip into the writing portion,
• Fig 30 is a cross-sectional view of a first prefeired embodiment of an offset pen having the basic stracture of Fig 5 and including a linear hollow passage for accommodating therein replaceable writing tips accordmg to the present invention
• Fig 3 1 is a cross-sectional view of a second preferred embodiment of an offset pen having the basic stractuie of Fig 5 and including a linear hollow passage for accommodating therein replaceable writing tips according to the piesent invention.
• Fig 32 schematically shows a connection manner of a series of replaceable writing tips stored in the linear hollow passage of the offset
• Fig 33 is a cross-sectional view of a third prefe ⁇ ed embodiment of an offset pen having the basic stracture of Fig 5 and including a linear hollow passage for accommodating therein replaceable writing tips according to the present invention.
• Figs. 34 A and 34B schematically shows a combining manner of the offset pen having the basic stracture of Fig. 25A and including an assemble-type ink refill according to the present invention, in which the assemble-type ink refill having a connector connected between the ink- soaking refill and the writing tip; and
• Figs. 34C-34F schematically shows various combining manner of the writing tip and the connector of Fig. 34A.
• Fig 5 shows a basic stracture of an offset pen according to the present invention.
• the offset pen includes a holding portion 51. an inte ⁇ nediate portion 52 and a writing portion 53.
• the inte ⁇ nediate portion 52 is connected between one end 51 1 of the holding portion 51 and one end 531 of the writing portion 53 to make the holding portion 51 and the writing portion 53 positioned in different axes, and create a vacancy 54 between the writing portion 53 and the holding portion 51.
• the holding portion 51 can be supported by a user ' s writing hand between the thumb and the index finger, and tips of the thumb and the index finger (see Fig. 1A or IB) can rest on two sides of the inte ⁇ nediate portion 52, respectively, according to the writing habit of general users.
• a writing tip 532 is mounted to the writing portion 53 to leave marks on a working surface 55, for example to write or draw on a piece of paper It is clear that the provision of the vacancy 54 beneath the inte ⁇ nediate portion 52 between the writing portion 53 and the holding portion 51 allows the user ' s vision line to be extended to both sides of the writing tip 532 It should be noted that the te ⁇ n pen " indicated herein can be any kind of writing tool such as a fountain pen, ball point pen. pencil, brash, coloring pen. electronic sensing pen, etc . as long as a suitable writing tip is mounted to the writing portion of the offset pen
• Fig 6 is a schematic top plane view of the offset pen of Fig 5
• an upper surface 71 of the intermediate portion 52 is comfortable for the index finger of the user ' s writing hand to press thereagainst to facilitate the holding and writing operations Owing to the provision of such an upper surface, the user can optionally hold the offset pen in a manner as shown in Fig 1 A or IB, or in a manner as shown in Fig 7 A
• the arrow indicates the pressing force of the index finger on the upper surface
• it can be plane (Fig 7B), concave (Fig IC) or convex (Fig 7D), as long as it is comfortable for the pressing finger
• a hollow passage 81 is a ⁇ anged withm the offset pen and extends tlirough the writing portion 53, the inte ⁇ nediate portion 52 and the holding portion 51. as shown in Fig. 8, for accommodating therein a writing material supply 533 co ⁇ espondmg to the writing tip 532
• a writing material supply 533 co ⁇ espondmg to the writing tip 532
• the offset pen is a brash
• no passage is required
• the offset pen is a ball point pen.
• the passage 81 is needed for accommodating the ink refill 533
• the passage 81 preferably penetrates the crooked intermediate portion 52 tlirough a relatively short path
• it is prefe ⁇ ed to make a lower part 521 of the inte ⁇ nediate portion 52 larger than an upper part 522 thereof in cross-sectional area
• an illuminating device can be provided on the intermediate portion to lighten an area near the writing tip
• Fig 9 is a first prefe ⁇ ed embodiment of an offset pen including an illuminating device according to the present invention
• the illuminating device 91 1 is mounted on a lower part 521 of the intermediate portion 52 and located within the vacancy 54 between the writing portion 53 and the holding portion 51
• the presence of the vacancy 54 not only allows the user ' s vision line to be extended to both sides of the writing tip while w ⁇ ting or drawing, but also allows the light emitted from the illuminating device 91 1 to reach the area 92 near the writing tip 532
• the writing tip 532 is substantially located in an extension line 512 of the holding portion 51 , the light emitted from the illuminating device 91 1 can be centered on the w ⁇ ting tip 532 so as to enhance the lightening effect
• the illuminating device 91 1 is a first prefe ⁇ ed embodiment of an offset pen including an il
• Figs 10 and 1 1 are a second and a third prefe ⁇ ed embodiments of offset pens including illuminating devices according to the piesent invention, respectively
• the intermediate portion 52 and the writing portion 53 are transparent so that the light bulb 91 1 can be mounted at any position inside the intermediate portion 52, e g at the lower part 521 (Fig 10) or at a position 523 near the connection between the intermediate portion and the writing portion (Fig 1 1 )
• the illuminating device can still be mounted inside the intermediate portion at a lower part near a connection position between the intermediate portion and the holding portion In this case, however, an opening 1 1 1 should be arranged at the lower part 521 beneath the light bulb 91 1 to allow light to be transmitted out of the inte ⁇ nediate portion 52 to reach the area 92 near the w ⁇ ting tip 532, as shown in Fig 12 It is apparent that the farther the light bulb 91 1 is installed away from the opening 1 1 1, the smaller the illuminating area 92 becomes Therefore the position of the writing tip 532 should be a ⁇ anged to be properly located within the illuminating area 92 In other words, the writing tip 532 is preferably located in an extension line 512 of the holding portion 51 so that light emitted from the light bulb 91 1 can reach the writing tip 532
• the illuminating device 91 1 is mounted on a front surface 524 of the inte ⁇ nediate portion 52, as shown in Fig. 13
• the intermediate portion 52 includes a detachable soft pad 525 at the lower part, as shown in Fig 14 A, which makes the middle finger of the user ' s writing hand optionally sustaining thereagainst feel comfortable while writing
• the illuminating device 911 is attached on the soft pad 525, as shown in Fig 14B
• a pen cap is provided for the offset pen having the basic stracture of Fig 5
• Figs 15A and 15B are side views of a first preferred embodiment of an offset pen having the basic stracture of Fig 5 and including a pen cap according to the present invention, in winch the pen cap is capped on the writing portion and the holding portion, respectively
• the pen cap 15 includes a hollow tube 151 and a clip strip 152 attached onto the hollow tube 151, and there is a special angle ⁇ between the hollow tube 151 and the clip strip 152
• the writing portion 53 is received in the hollow tube 151 to avoid blotting of the writing tip 532
• the clip strip 152 will become axially parallel to the holding portion 51 when the hollow tube 151 caps the writing portion 53 so as to cooperate with the holding portion 51 to allow the offset pen to clamp a holding piece such as pocket cloth, a piece of paper or a plastic pen-holding sleeve of a notebook.
• the hollow tube 151 can be taken off from the writing portion 53 and cap on an end part 513 of the holding
• the clip strip 162 can be pivotally rotated to have the angle ⁇ with the hollow tube 161 to become axially parallel to the holding portion 51 when the hollow tube caps the writing portion 53, and pivotally rotated to become axially parallel to the hollow tube 161 and the holding portion 51 when the hollow tube 161 caps the end part 513 of the holding portion 51.
• the inte ⁇ nediate portion of an offset pen having a crooked passage can be fo ⁇ ned by combining at least two separate pieces according to the present invention.
• the offset pen is fo ⁇ ned by combining two separately integrally fo ⁇ ned pieces 171 and 172, wherein a first piece 171 fo ⁇ ns a part of the writing portion 53, the inte ⁇ nediate portion 52 and the holding portion 51, and a second piece 172 fo ⁇ ns the other part of the writing portion 53, the inte ⁇ nediate portion 52 and the holding portion 51
• the first and the second pieces 171 and 172 can be combined by tooth engagement, as shown in Fig 18
• the offset pen is also fo ⁇ ned by combining two separately integrally formed pieces, wherein a first piece 191 fo ⁇ ns a part of the inteimediate portion 52 and the holding portion 51. and a second piece 192 forms the writing portion 53, and the other part of the inte ⁇ nediate portion 52 and the holding portion 51
• the first and the second pieces 191 and 192 are combined by pivotally connecting the first piece 191 to the second piece 192, as indicated by the a ⁇ ow
• Fig 20 In further embodiment shown in Fig 20.
• the offset pen is also fo ⁇ ned by combining two separately integrally fo ⁇ ned pieces, wherein a first piece 201 forms a part of the intermediate portion 52 and the holding portion 51 , and a second piece 202 fo ⁇ ns the writing portion 53, and the other part of the intermediate portion 52 and the holding portion 51
• the first and the second pieces 201 and 202 are combined by pivotally connecting the first piece 201 to the second piece 202, as indicated by the a ⁇ ow
• the first piece in addition to the above embodiments in which the first piece includes a part of the holding portion and a part of the inte ⁇ nediate portion, the first piece can also be a part of the intermediate portion only, such as a rear surface or a side surface
• the offset pen is foimed by combining a first piece 21 1 as a rear surface with a second piece 212 including the writing portion 53 and the other part of the inte ⁇ nediate portion 52, and then screwing the combined writing portion 53 and inte ⁇ nediate portion 52 to the holding portion 51
• the first piece 211 is a soft pad
• the offset pen combined by several pieces has the advantage of easy making, and in addition, the provision of the soft pad 21 1 as the rear surface of the intermediate portion allows the middle finger of the user's writing hand to sustain thereagainst while writing to feel comfortable
• Fig 22 schematically shows a first piece 221 serving as a side piece to be combined with a second piece 222 including the writing portion 53 and the other part of the intermediate portion 52
• the first piece can be a piece 231 serving as a rear and two side surfaces of the intermediate portion, as shown in Fig 23
• the offset pen is fo ⁇ ned by combining seveial separately integrally fo ⁇ ned pieces 241 , 242 and 243, wherein the pieces 241 and 242 form two opposite side surfaces of the inte ⁇ nediate portion 52, respectively, and the piece 243 fo ⁇ ns the w ⁇ tmg portion 53 and the other part of the intermediate portion 52 The combined writing portion and intermediate portion are then screwed to the holding portion to fo ⁇ n the offset pen
• the offset pen is also fo ⁇ ned by combining two separately integrally fo ⁇ ned pieces, wherein a first piece 271 forms the holding portion 51 and a part of the inteimediate portion 52. and a second piece 272 fo ⁇ ns 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 tooth engagement, as shown in Fig 25B
• the offset pen is also fo ⁇ ned by combining two separately integrally formed pieces
• the first piece 273 forms the holding portion 51 and the inte ⁇ nediate portion 52, and the second piece 274 fo ⁇ ns the writing portion 53
• the first piece 273 and the second piece 274 can be combined by tooth engagement
• the offset pen is fo ⁇ ned by combining several separately integrally fo ⁇ ned pieces, 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 piece fo ⁇ ns the holding portion 51 (not shown)
• the first piece 261 and the second piece 262 can be combined by tooth engagement, as shown in Fig 26B
• the combined intermediate portion and writing portion can be connected to the holding portion by screwmg
• the connecting interface between the first piece 261 and the second piece 262 can be modified to various fo ⁇ ns as shown by the dotted line x-x, y-y or z-z in Fig 26C
• an ink refill 275 can be installed into the assemble-type offset pen easily, as shown in Fig 27A and 27B
• an ink refill 276 with a large upper portion also can be installed into the assemble-type offset pen easily as shown in
• a writing tip retracting mean is provided Please refer to Fig 29A
• the offset pen has a basic stracture the same as that of Fig 25 A
• the offset pen utilizes a writing tip retracting mean for selectively retracting the writing tip into the writing portion
• the writing tip retracting mean includes a button 279 engaging with an opening of the holding portion 51 and having a hollow tube for receiving the top part of the ink refill 277 so as to allow the ink refill 277 to be selectively pushed down with respect to the holding portion 51 in response to the operation of a user
• the sp ⁇ ng 277 has a first end urging against the fixing element 2771 of the ink refill 277 and a second end urging against an inner surface of the offset pen so as to fo ⁇ n an elastic force to the ink refill 277 in response to the movement of the ink
• the offset pen includes a linear hollow passage 25 having both ends 251 and 252 thereof open into the air. and axially extending through the holding portion 51 and the intermediate portion 52 for accommodating therein a series of replaceable writing tips 534
• each of the writing tip 532 and the replaceable writing tips 534 is of a pencil-type writing material of a short rod shape, and includes a tapered w ⁇ ting part 535 and a cylindrical base part 536
• the writing tip 532 becomes blunt after being used for a period of time, it can be taken out of the writing portion 53 and inserted into the holding portion 51 from the end 252 of the passage 25 Owmg to the push force resulting from the insertion of the used writing tip, all the replaceable writing tips 534 will move toward the other end 251 of the passage 25, and one of these writing tips 534 will be pushed out of the end 251 Afterwards, the dropped writing tip is inserted into the writing portion 53 as a substitutive writing tip 532
• the te ⁇ n "pencil " or "pencil-type writing material” used herein indicates any kind of writing or drawing tool or material which will become shorten and blunted owing to rubbing with a working surface to leave a portion of the material as marks on the working surface
• Fig 31 schematically shows another prefe ⁇ ed embodiment of an offset pen of a replaceable pencil type
• the offset pen also includes a linear hollow passage 25 having both ends 251 and 252 thereof open into the air. and axially extending tlirough the holding portion 51 and the inte ⁇ nediate portion 52 for accommodating therein a se ⁇ es of replaceable writing tips 534
• each of the writing tip 532 and the replaceable writing tips 534 is of a short rod shape
• each of the writing tips 532 and 534 includes a head part 537 of a pencil-type writing material, a middle part 538 having a first well 5381 securing thereto the head part 537. and a tail part 539 connected to the middle part 538 and having a second well 5391 for allowing the head part 537 of another writing tip 534 to be received therein
• a stopper stracture 5392 a ⁇ anged at the opening of the second wall 5391 stops the middle part 538 of the next writing tip to prevent the tip of the head part 537 from sustaining against the bottom of the middle part 538 so as to prevent from the damage of the head part 537
• the series of replaceable writing tips aligns itself by head-to- tail connection
• the head part 537 and the tail part 539 can also be oriented to the ends 252 and 251 , respectively, of the hollow passage 25, as shown m Fig 33
• the writing tip 532 or 540 becomes blunt after being used for a period of time, it can be taken out of the writing portion 53 or the holding portion 51.
• a pencil-type offset pen has an additional advantage of writing or drawing in different thickness
• the angle between the writing tip and the working surface may change so that the area of the writing tip in contact with the working surface may also be different Accordingly, the marks left on the working surface vary in thickness with the rotation of the offset pen
• the offset pen has a basic stracture the same as that of Fig 25 A
• An assemble-type ink refill is installed into the offset pen
• the assemble-type ink refill includes an ink-soaking refill 341 arranged within the hollow passage of the holding portion 51 for storing and supplying ink, and a connector 342 a ⁇ anged withm the hollow passage of the inte ⁇ nediate portion and connected between one end of the ink-soaking iefill 341 and one end of the writing tip 343
• the ink-soaking refill 341 is made of hquid-adsorptive material By the way. the writing tool can be modified to an offset pen having an ink-soaking refill, such as one of various marks or ink-loading pen
• the connector 342 can be modified to various fo ⁇ ns which is well known to one skilled in the art, as shown in Fig 34C, 34D, 34E, and 34F
• the connector 342 is made of a hquid- adsorptive material
• the connector 342 is an introducing tube made of a metal material for introducing the ink from the ink-soakmg refill 341 to the writing tip 343
• the writing tip 343 can be a brush-type writing tip, as shown in Fig 34D
• the brash-type writing tip 343 can be surrounded with an outer shell, as shown in Fig 34E
• the writing tip 343 is made of a hquid-adsorptive material, as shown in Fig 34F The combining manner between the w ⁇ ting tip 343 and the connector
• the connector 342 can be modified to various forms, as shown in Fig 34C, 34D, 34E, and 34F Certainly, in another embodiment, the connector 342 can be integrally formed to the writing tip 343 (as shown in Fig 34E) or integrally formed to the ink-soakmg refill 341 In addition, the offset pen may be modified to have an upper cap detachably engaging with an opening of the holding portion so that the ink can be refilled easily
• the present invention uses a nonlinear design for the holding portion and the writing portion of a writing tool to adjust the angle between the writing portion and a working surface to approximately 90 degrees
• the crooking of the front portion of the offset pen eliminates the obstraction of the user ' s vision line Furthe ⁇ nore, the line- drawing operation can be more precise compared to the conventional one
• the side surfaces with concavities and the upper surface of the inte ⁇ nediate portion provide a place for resting the fingers to facilitate the holding and writing operations
• the provision of an illuminating device allows the offset pen to be used in a relatively dark environment
• the provision of the specific pen cap allows the offset pen to be earned conveniently By combining at least two pieces separately manufactured, the offset pen having crooked passage therein can be made easily By providing a linear hollow passage having both ends thereof open mto the air and axially extending tlirough the holding portion and the inte ⁇ nediate portion, a se ⁇ es of replaceable writing tips can be accommodate

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Pens And Brushes (AREA)

Priority Applications (4)

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Publications (1)

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Family Applications (1)

Country Status (4)

Cited By (5)

Citations (13)

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• 1999
  • 1999-06-01 MX MXPA01013305A patent/MXPA01013305A/es not_active IP Right Cessation
  • 1999-06-01 WO PCT/US1999/010486 patent/WO2000072724A1/en active Application Filing
  • 1999-06-01 EP EP99925614A patent/EP1185187A4/de not_active Withdrawn
  • 1999-06-01 AU AU41864/99A patent/AU4186499A/en not_active Abandoned

Patent Citations (13)

Non-Patent Citations (1)

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