JP5629942B2 - stationery - Google Patents

Description

  The present invention relates to a stationery, and more particularly to a stationery that has an eraser holding device for adjusting the length of the eraser in the extension direction, and can easily exchange the eraser.

  Most erasers consist of individual objects in the form of blocks or sticks that allow the user to erase the pencil marks with the eraser in one hand. In order to keep the eraser clean, Taiwan Utility Model Patent No. 336548 entitled “Rotary Stick Object Dispenser” has been proposed. The dispenser of the '548 patent includes a tubular body including a stick-type eraser inside, and the eraser is pushed out of the tubular body while being rotated or pulled into the tubular body. However, the dispenser of the '548 patent is separate from other stationery items such as pencils or pens, so users can alternate between pencils, erasers or correction tapes to write or draw lines. Must be used for It is inconvenient to alternate use of different stationery items, and it takes a lot of space to prepare, carry and store different types of stationery items, and is also inconvenient.

  In addition, Taiwan Utility Model Patent No. 323995 entitled “Dual Function Correction Tape” discloses an eraser 52 securely attached to the correction tape body 50 with reference to FIG. The main body 50 has a recess 51 defined at the rear end of the main body, and an eraser 52 is press-fitted into the recess 51. A cap 53 is removably attached to the rear end portion of the main body 50 in order to keep the eraser 52 inside to prevent the eraser 52 from becoming dirty. In use, the correction tape and the eraser 52 can be selectively used by rotating the main body 50 upside down so that the correction tape and the eraser 52 are easy to use.

  However, since the eraser 52 is firmly attached to the main body 50, when the eraser is deformed, the eraser 52 is easily separated from the main body 50 when the pencil mark is erased. In addition, the length of the eraser 52 in the stretch direction cannot be adjusted with respect to the main body 50 and cannot be stored in the main body 50, which lacks flexibility in use. Further, when the eraser 52 is worn out or damaged, the used eraser cannot be easily removed from the main body 50 and cannot be replaced with a new one.

  In order to overcome such disadvantages, the present invention intends to provide a stationery to alleviate or eliminate the above-mentioned problems.

Taiwan Utility Model Patent No. 336548 Taiwan Utility Model Patent No. 323995

  A main object of the present invention is to provide a stationery which has an eraser holding device for securely tightening an eraser, and which can adjust the length of the eraser in the extension direction and easily replace the eraser after use. There is to do.

  The stationery has a first end for adjustably coupling with an eraser and a second end for coupling with a stationery element, and includes a body and an eraser holding device. The main body has a holding end, a functional end opposite the holding end, and a holding recess defined in the holding end of the main body. The eraser holding device is installed in a holding recess of the main body for holding the eraser to adjust an extension length of the eraser with respect to the main body, and includes an opening and a fastening segment. . The opening is defined in the eraser holding device at a position related to the holding end of the main body. The clamping segment is slidably mounted in a holding recess of the main body, and between the holding recess and the opening of the eraser holding device to adjust the length of the eraser in the extension direction with respect to the main body. It is slidable and includes a number of clamping protrusions for pressing against the eraser.

  With such an arrangement, the eraser holding device according to the present invention has a function of adjusting the length of the eraser in the extending direction with respect to the main body and easily replacing the eraser. The eraser can be pushed out of the body for use and can be fully retracted after being erased. For replacement, the eraser can be easily replaced by pulling the eraser holding device from the body or rotating a rotary knob, which is convenient for operation.

  In addition, since the eraser holding device has a clamping segment and a guide segment, the eraser can be securely clamped by the clamping segment to prevent it from separating from the body. The guide segment can suppress extreme deformation of the eraser during erasing, and has a function of preventing the eraser from separating from the main body and mitigating deformation of the eraser.

  Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

It is a disassembled perspective view of 1st Embodiment of the stationery based on this invention. It is an expansion disassembled perspective view of the stationery shown in FIG. It is an enlarged side view which shows the stationery shown in FIG. 1 in a partial cross section. It is a disassembled perspective view of 2nd Embodiment of the stationery which concerns on this invention. FIG. 3 is an enlarged exploded perspective view of the stationery shown in FIG. 2. FIG. 3 is an enlarged side view showing the stationery shown in FIG. 2 in a partial cross section. It is an expansion operation | movement side view which shows the stationery of FIG. 2 in the partial cross section which shows the operation | movement by which the eraser is replaced | exchanged. It is a disassembled perspective view of 3rd Embodiment of the stationery based on this invention. It is an expansion disassembled perspective view of the stationery shown in FIG. It is an expansion perspective view which shows the stationery shown in FIG. 8 in a partial cross section. FIG. 9 is an enlarged perspective view of the stationery of FIG. 8 in partial section showing the eraser being pushed out with respect to the main body. It is a disassembled perspective view of 4th Embodiment of the stationery based on this invention. It is an expansion disassembled perspective view of the stationery shown in FIG. It is an expansion perspective view which shows the stationery shown in FIG. 12 in a partial cross section. FIG. 13 is an enlarged perspective view of the stationery of FIG. 12 in partial section showing the eraser being pushed out with respect to the main body. It is a disassembled perspective view of 5th Embodiment of the stationery based on this invention. It is an expansion disassembled perspective view of the stationery shown in FIG. It is an expansion perspective view which shows the stationery shown in FIG. 16 in a partial cross section. FIG. 17 is an enlarged perspective view of the stationery of FIG. 16 in partial section showing the eraser being pushed out with respect to the main body. FIG. 9 is an exploded perspective view of a conventional correction tape of the '995 patent.

  The present invention relates to a stationery having an eraser holding device. The stationery according to the present invention has a holding end provided with the eraser for firmly holding the eraser, a writing instrument such as a pencil or a pen, or an adhesive such as a correction tape dispenser or an adhesive tape dispenser. A stationery functional end consisting of a thin film dispenser. Therefore, the stationery according to the present invention has two kinds of easy-to-use stationery functions.

  The stationery according to the present invention has a main body and a holding recess defined at one end of the main body. An eraser holding device is placed in the holding recess, and the eraser holding device has an opening and a fastening segment. The opening is defined in the eraser holding device at an end outside the main body. The clamping segment is slidably mounted in a holding recess of the main body, and the holding recess and an opening of the eraser holding device are arranged to adjust the length of the eraser in the extension direction with respect to the main body. And includes a plurality of clamping protrusions that press the eraser to hold the eraser to adjust the length of the eraser in the extension direction relative to the body.

  1 to 3, a stationery according to a first embodiment of the present invention includes a main body 10, an eraser holding device 20, and a cap 30.

  The main body 10 is composed of a writing instrument, a correction tape dispenser, an adhesive tape dispenser, and the like, is elongated, and includes a holding end, a stationery functional end, and a holding recess 11. The stationery functional end is on the opposite side of the holding end. The holding recess 11 includes a mouth defined at the holding end of the main body 10 and a first buckling segment 12 formed on the inner surface of the holding recess 11. The first buckling segment 12 is formed on two opposite sides of the inner surface of the holding recess 11 at the inner end opposite to the mouth. The first buckling segment 12 is implemented as two cavities formed respectively on opposite sides of the inner surface of the holding recess 11.

  The eraser holding device 20 comprises a hollow rectangular frame, is detachably mounted on the main body 10, and includes an opening, a tightening segment 21, a stop flange 22, and a guide segment 23. The opening is defined in the eraser holding device 20 at a position related to the holding end of the main body 10. Preferably, the opening is defined in one end portion of the eraser holding device 20 located outside or inside the holding end portion of the main body 10. The clamping segment 21 is detachably mounted in the holding recess 11 of the main body 10 and is slidable between the holding recess 11 and the opening. The fastening segment 21 has an outer end adjacent to the opening and an inner end facing the opening. The clamping segment 21 has an elastic slot 210 formed laterally in the middle of the two side walls of the clamping segment, dividing the clamping segment 21 into two half clamping frames, so that the two half The fastening frame has an elastic function of being pressed toward one another. The tightening segment 21 is formed on the inner end on the outside of the two half-tightening frames and is a second buckling segment 211 which engages with the first buckling segment 12 of the main body 10, and the eraser holding device 20. Has a second buckling segment 211 that suppresses disengagement from the main body 10. Preferably, the second buckling segment 211 includes two buckling bosses formed at the inner end portion outside the two half-clamping frames and projecting from the inner end portion.

  The fastening segment 21 further includes two elastic arms 212 formed at the center of the two half frames, each elastic arm 212 having an inner end and an outer end. The inner end portion is integrally connected to the corresponding inner end portion of the half fastening frame. The outer end portion extends outward, and a tightening protrusion 213 is provided on the outer end portion. The clamping protrusion 213 is adjacent to the inner surface of the holding recess 11 in the body 10 to allow the elastic arm 212 to elastically protrude into the inner space of the clamping segment 21 in order to securely clamp the eraser 40. Yes.

  In addition, the number and structure of the clamping protrusions 213 is not limited in the present invention, and at least three clamping protrusions 213 can be provided by the present invention.

  The stop flange 22 is formed around the outer end of the clamping segment 21 and is adjacent to the holding end of the body 10 in which the mouth of the holding recess 11 is defined.

  The guide segment 23 is formed of a rectangular frame, is formed at the outer end of the tightening segment 21, protrudes outward from the stop flange 22, and forms the opening of the eraser holding device 20 having a distance from the tightening segment 21. As a result, the eraser 40 can be prevented from being extremely deformed while it is used for erasing the writing mark, can be prevented from being separated from the tightening segment 21, and can be prevented from being damaged by the extreme deformation. Is possible.

  A cap 30 is removably mounted on the main body 10 at the holding end to which the eraser holding device 20 is attached, is placed around the stop flange 22, and completely covers the eraser holding device 20, with respect to the eraser 40. It provides a protective effect and prevents the eraser 40 from getting dirty.

  In use, the eraser holding device 20 is pulled out from the main body 10, and a stick-type eraser 40 is inserted into the eraser holding device 20. Next, the eraser holding device 20 having the eraser 40 is inserted into the holding recess 11 in the main body 10. Due to the adjoining of the plurality of tightening projections 213 and the main body 10, the plurality of elastic arms 212 are pressed toward each other, tightening the inner end of the eraser 40, and securely holding the eraser 40 in a predetermined position. An intermediate portion of the eraser 40 is placed in and adjacent to the guide segment 23, and an outer end portion of the eraser 40 extends from the guide segment 23 and serves as an erased end portion. As a result, during the erase operation, the guide segment 23 of the eraser holding device 20 can suppress the extreme deformation of the eraser 40 and the separation from the tightening segment 21.

  In addition, when the length of the eraser 40 in the extension direction is insufficient or damaged, or the eraser 40 after use has to be replaced with a new one, the eraser holding device 20 is pulled out of the holding recess 11. Next, the eraser 40 can be slid to adjust the length of the eraser 40 in the extension direction, or the eraser 40 after use is completely pulled out from the eraser holding device 20 and replaced with a new one. The As a result, the eraser holding device 20 with the adjusted or new eraser 40 is inserted into the holding recess 11 for use, so that the eraser 40 can be easily adjusted, exchanged and quickly performed. Is called.

  4 to 7, the second embodiment of the present invention includes a main body 10A, an eraser holding device 20A, and a cap 30A. The main body 10A is the first embodiment except that the first buckling segment 12A is composed of two buckling hooks respectively formed on two opposite sides of the inner surface of the holding recess 11A. Has substantially the same structure as in FIG.

  The eraser holding device 20A has a hollow rectangular frame, and includes a fastening segment 21A and a guide segment 23A. The clamping segment 21A is removably mounted in the holding recess 11A and includes two clamping tabs that correspond to each other. Each tightening tab has an inner end portion and a pressing flange 210A formed at the inner end portion of the tightening tab and extending toward the other one to block and hold the inner end portion of the eraser 40. A second buckling segment 211A is formed on an intermediate portion of the plurality of fastening tabs, engages with the first buckling segment 12A, and inserts the eraser 40 into the eraser holding device 20A. Is prevented from sliding with respect to the main body 10A. Preferably, the second buckling segment 211A includes two buckling bosses formed on and extending from each of the two sides of the clamping tab, respectively.

  Each fastening tab further includes an elastic arm 212A formed on the fastening tab, and each elastic arm 212A has an inner end portion and an outer end portion. The inner end portion is integrally connected to the tightening tab, and has a blocking protrusion 214A formed laterally at the inner end portion. The outer end portion extends outward, and a lateral tightening protrusion 213A is provided. The tightening protrusion 213A securely tightens the eraser 40 so that the elastic arm 212A can elastically protrude into the inner space of the tightening segment 21A so that the inner surface of the holding recess 11A or the first buckling is formed. Adjacent to segment 12A.

  The guide segment 23A is formed of a rectangular frame, is formed at the outer end of the tightening segment 21A and is installed in the mouth of the holding recess 11A, protrudes outward from the mouth, and has an interval from the tightening segment 21A. The opening of 20A is formed. As a result, the extreme deformation of the eraser 40 while the eraser 40 is used to erase the handwriting or writing is suppressed, and the eraser 40 is separated from the fastening segment 21A and damaged by the extreme deformation. Can be suppressed.

  A cap 30A is detachably mounted on the main body 10A at the holding end where the eraser holding device 20A is installed, and is placed around the guide segment 23A to completely cover the eraser holding device 20A and to erase the eraser 40. Is provided, and the eraser 40 is not soiled.

  The use of the second embodiment of the present invention is substantially the same as that of the first embodiment, but the operation of adjusting or replacing the eraser 40 is different and is as follows.

  When the length of the eraser 40 in the extension direction is not sufficient or damaged, or when the eraser 40 after use has to be replaced with a new one, the eraser holding device 20A has a blocking protrusion 214A on the clamping tab. Until it engages the buckling hook of the buckling segment 12A. Accordingly, the eraser holding device 20 </ b> A is prevented from being separated from the main body 10. At this time, the buckling hook is held between the blocking protrusion 214A and the buckling boss of the second buckling segment 211A, and the sliding movement of the eraser holding device 20A is blocked. On the other hand, the fastening protrusion 213A on the fastening tab escapes from the main body 10A, and the fastening protrusion 213A does not fasten the eraser 40. As a result, the clamping force applied by the clamping protrusion 213A and applied to the eraser 40 is released, so that the eraser 40 can be slid to adjust its length in the extension direction, or a new eraser 40 can be used after use. It is possible to replace it with something. As a result, the eraser holding device 20A having the adjusted or new eraser 40 is pushed into the holding recess 11A, and the second buckling segment 211A is re-engaged with the first buckling segment 12A. As a result, the adjustment or replacement operation of the eraser 40 is completed.

  8 to 11, the third embodiment of the present invention includes a main body 10B, a removable and rotatable eraser holding device 20B, and a cap 30B.

  The main body 10B has substantially the same structure as in the first embodiment, and further description is omitted.

  The eraser holding device 20B is removably inserted into the holding recess 11B, and includes an outer frame 21B, a stop flange 22B, a guide tube 23B, a pressing slider 24B, and a rotary knob 25B. The outer frame 21B is detachably installed in the holding recess 11B, and an elastic slot 210B formed in a lateral direction is formed in an intermediate portion of the outer frame 21B to divide the outer frame 21B into two half frames. And the two half frames have the elastic function of being pressed towards one another. A second buckling segment 211B is formed at the inner end outside the two half frames and engages with the first buckling segment 12B of the main body 10B, and the eraser holding device 20B is separated from the main body 10B. Suppress. Preferably, the second buckling segment 211B includes two buckling bosses respectively formed at the inner end portions outside the two half frames and projecting from the inner end portions.

  The stop flange 22B has a rectangular shape, is formed around the outer frame 21B, and is adjacent to the holding end of the main body 10B where the mouth of the holding recess 11B is defined. Stop flange 22B has an inner surface and a positioning segment formed on said inner surface of stop flange 22B. The positioning segment includes at least one positioning flange 220B and an annular positioning rib or annular recess.

  The guide tube 23B is installed separately in the outer frame 21B, and defines a separation space between the outer frame 21B and the guide tube 23B. The guide tube 23B has an inner end integrally connected to the inner end of the outer frame 21B, and an outer end extending from the outer end of the outer frame 21B and protruding from the main body 10B beyond the stop flange 22B. . The guide tube 23B includes an elongated passage 230B defined in the guide tube 23B and having a rectangular cross section for holding the eraser 40 therein. Two guide grooves 231B are respectively defined in the longitudinal direction on two opposite sides of the tube wall of the guide tube 23B. Preferably, the guide groove 231B corresponds to and is aligned with the elastic slot 210B of the outer frame 21B, and extends from the outer end of the guide tube 23B to a position passing through the stop flange 22B.

  A pressing slider 24B is slidably installed along the guide groove 231B in the guide tube 23B so as to function as a clamping segment of the eraser holding device 20B, and includes a pressing plate 240B and two clamping blades 241. The pressing plate 240B is placed in the passage 230B of the guide tube 23B, corresponds to the shape of the passage 230B, and has two ends. Both clamping blades 241B are formed at both ends of the pressing plate 240B, and are respectively installed in the guide grooves 231B in the guide tube 23B. Each fastening blade 241B has an inner part, an outer part, a screw rib 242B, and a fastening protrusion 243B. The screw rib 242B is formed on the outer side of the fastening blade 241B. The fastening protrusion 243B is formed on the inner side of the fastening blade 241B in order to fasten the inner end portion of the eraser 40.

  The rotary knob 25B is formed of a circular hollow tube, and is rotatably installed around the guide tube 23B and installed in the outer frame 21B. Further, the rotary knob 25B has an internal screw 250B and a head 251B. The inner screw 250B is formed on the inner surface of the rotary knob 25B and meshes with the screw rib 242B on the fastening blade 241B. The head 251B is formed on the outer end of the rotary knob 25B, which allows the rotary knob 25B to rotate, and that guides the pressing slider 24B to adjust the length of the eraser 40 in the extension direction. Adjacent to the stop flange 22B for driving along the tube 23B. Preferably, the rotary knob 25B has an engagement segment formed on the outer surface of the rotary knob and is rotatably engaged with a positioning segment on the stop flange 22B. The engagement segment comprises an annular recess 252B corresponding to and engaging with at least one positioning flange 220B or an annular positioning rib of the positioning segment, or corresponding to an annular recess of the positioning segment and It includes at least one locating flange or annular locating rib that engages it. Therefore, the rotary knob 25B is rotatably mounted on the stop flange 22B.

  The cap 30B has the same structure as in the first embodiment, and detailed description thereof is omitted.

  In use, the stick-type eraser 40 is inserted into the passage 230B of the guide tube 23B, the inner end of the eraser 40 is adjacent to the pressing plate 240B, and is tightened by the tightening protrusion 243B of the tightening blade 241B. The outer end portion of the eraser 40 extends from the rotary knob 25B and serves as an end portion for erasing, and an intermediate portion of the eraser 40 is held and restricted by the tube wall of the guide tube 23B. As a result, the eraser 40 is restrained from extreme deformation, and the separation from the eraser holding device 20B is suppressed.

  When the length of the eraser 40 in the extension direction is not sufficient or the eraser 40 is damaged or the eraser 40 after use has to be replaced with a new one, the head 251B of the rotary knob 25B is rotated and the pressing slider 24B is moved. By the engagement between the inner screw 250B and the screw rib 242B on the clamping blade 241, it is moved along the guide groove 231B in the guide tube 23B. Accordingly, the eraser 40 is pressed and extends from the opening of the eraser holding device 20B for an appropriate length in the extension direction. In order to replace the eraser 40 after use with a new one, the head 251B is rotated until the pressing slider 24B moves to a position adjacent to the opening of the eraser holding device 20B. Next, the eraser 40 after use can be removed from the eraser holding device 20B, and a new eraser 40 can be inserted into the eraser holding device 20B.

  When the head 251B of the rotary knob 25B is rotated in the opposite direction, the pressing slider 24B having the eraser 40 moves along the guide groove 231B due to the engagement between the inner screw 250B and the screw rib 242B of the fastening blade 241B. It is moved into the guide tube 23B. Therefore, the length of the eraser 40 in the extending direction can be easily adjusted by rotating the head 251B.

  Referring to FIGS. 12 to 15, the fourth embodiment of the present invention includes an eraser holding device 20 </ b> C that cannot be removed but is rotatable, and includes an outer frame 21 </ b> C and a guide tube for the eraser holding device 20 </ b> C. 23C has substantially the same structure as in the third embodiment except that the main body 23C is integrally formed in the main body 10C and the stop flange is omitted. The cap 30C is detachably mounted on the main body 10C and completely covers the eraser holding device 20C. Instead, the outer frame and the stop flange can be omitted, and the guide tube 23C is installed separately in the main body 10C. The pressing slider 24C is movably installed in the passage 230C in the guide tube 23C, and the rotary knob 25C is rotatably installed around the guide tube 23C, and is installed between the main body 10C and the guide tube 23C. The use and operation of the fourth embodiment are substantially the same as those of the third embodiment, and detailed description thereof is omitted.

  Referring to FIGS. 16 to 19, the fifth embodiment of the present invention includes an eraser holding device 20D that is not removable but rotatable, and is substantially the same as in the fourth embodiment. It has a structure.

  The holding recess 11D of the main body 10D has a bottom portion that protrudes laterally from the side wall of the main body 10D, and a positioning segment is formed on the inner surface of the holding recess. The positioning segment includes at least one of a positioning flange 12D, an annular positioning rib, or an annular recess.

  The guide tube 23D has an inner end portion integrally connected to the bottom portion of the holding recess 11D, and an outer end portion extending from the holding recess 11D. The pressing slider 24D is installed in the guide tube 23D, and the rotary knob 25D is installed to be rotatable around the guide tube 23D, and is installed between the guide tube 23D and the main body 10D. Preferably, the rotary knob 25D has an engagement segment formed on the outer surface at an intermediate portion of the rotary knob and rotatably engaged with the positioning segment in the main body 10D. The engaging segment comprises at least one positioning flange 12D or an annular recess 252D corresponding to or engaging with an annular positioning rib of the positioning segment, or corresponding to an annular recess of the positioning segment. And at least one positioning flange or annular positioning rib engaging therewith. Accordingly, the rotary knob 25D is rotatably connected to the inner surface of the holding recess 11D. In the fifth embodiment, the outer frame and the stop flange are omitted.

  The use of the fifth embodiment is substantially the same as that of the fourth embodiment. When the rotary knob 25D is rotated, the pressing slider 24D is driven to move along the guide tube 23D in order to extend the eraser 40 from the main body 10D or store it in the main body. Since the eraser 40 can be completely stored in the main body 10D, the cap can be omitted.

  As described above, the eraser holding device 20 according to the present invention has a function of adjusting the length of the eraser in the extending direction with respect to the main body 10 and completely replacing the eraser 40. The eraser 40 can be pressed to extend from the main body 10 for use, and can be stored completely after being erased. For this reason, the eraser 40 is easy to use. Good and has a wide range of uses. Regarding the replacement, the eraser 40 can be easily replaced by pulling out the eraser holding device 20 from the main body 10 or rotating the rotary knob 25, which is easy to operate.

  In addition, since the eraser holding device 20 includes the tightening segment 21 and the guide segment 23, the eraser 40 can be securely tightened by the tightening segment 21 so that the eraser 40 does not separate from the main body 10. The guide segment 23 can be restrained from being deformed violently while the eraser 40 is erased, and has a function of preventing the eraser 40 from separating from the main body 10 and absorbing the deformation of the eraser 40.

  While the features and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and it is not limited to modifications, particularly the shape, size and arrangement of the parts. In the following detailed description, the appended claims will be made within the principles of the invention as long as indicated by the broad general meaning of the terms presented.

10, 10A, 10B, 10C, 10D Main body 11, 11A, 11B, 11D Holding recess 20, 20A, 20B, 20C, 20D Eraser holding device 40 Eraser

Claims (33)

A holding end, a stationery functional end opposite the holding end, and a body having a holding recess defined in the holding end;
An eraser holding device installed in a holding recess of the main body for holding an eraser and adjusting an extension direction length of the eraser with respect to the main body,
An opening defined in the eraser holding device at a position related to the holding end of the main body, and slidably installed in a holding recess of the main body, and the holding to adjust the length of the eraser in the extension direction with respect to the main body Ri slidably der between the opening of the recess and the eraser holding device includes a clamping segment with a plurality of fastening protrusions for pressing the eraser, e Bei an eraser holding device,
The holding recess of the body has an inner surface and a first buckling segment formed on the inner surface of the holding recess;
The eraser holding device is a stationery having a second buckling segment that engages with the first buckling segment . The stationery according to claim 1, wherein the fastening segment of the eraser holding device has two fastening protrusions formed so as to be opposed to the fastening segment .   The eraser holding device further comprises a guide segment connected to the clamping segment and extending from a holding recess in the body to form an opening of the eraser holding device spaced from the clamping segment. Item 3. A stationery according to item 2. The eraser holding device is removably placed in a holding recess of the body and includes two elastic arms formed on two opposite sides of the clamping segment;
Each elastic arm
An inner end integrally connected to the inner end of the clamping segment;
The stationery according to claim 3, further comprising an outer end portion extending outward and provided with a tightening projection for tightening the eraser. The stationery of claim 4, wherein the second buckling segment is formed on an inner end of the clamping segment and removably engages the first buckling segment . The first buckling segment includes two buckling cavities formed respectively on two opposite sides of the inner surface of the holding recess;
The second buckling segment, respectively formed on two opposite outer portion of the inner end portion of the clamping segments, including two buckling bosses respectively engaging the projecting and the buckling cavity from the outer side The stationery according to claim 5.   7. The fastening segment according to any one of claims 2 to 6, wherein the fastening segment has an elastic slot formed laterally in the middle of the two side walls of the fastening segment to divide the fastening segment into two half fastening frames. The stationery according to item 1.   The stationery of claim 7, wherein the eraser holding device further includes a stop flange formed around an outer end of the clamping segment and adjacent to the holding end of the body. The stationery of claim 5 further comprising a cap placed around the eraser holding device. The first buckling segment includes two buckling hooks respectively formed on two opposing sides of the inner surface of the retaining recess;
The second buckling segment includes two buckling bosses respectively formed on two opposing outer portions of the clamping segment, protruding from the outer portion and engaging with the buckling hooks, respectively. Item 6. A stationery according to item 5 . The clamping segment includes two clamping tabs;
Each tightening tab
An inner edge,
A pressing flange formed on the inner end of the clamping tab and extending toward the other one;
The stationery according to claim 10, wherein the elastic arms are respectively formed on the fastening tabs. The eraser holding device further includes:
A guide tube having an elongated passage for retaining the eraser therein and at least one guide groove defined in a longitudinal direction on a tube wall of the guide tube;
A pressing slider slidably mounted in the guide tube along at least one guide groove to act as a clamping segment of the eraser holding device, wherein the clamping projection is formed on the pressing slider, A slider,
Seated rotatably about the guide tube, it is connected to the pressing slider and a rotary knob for driving this to the the pushing slider moves, stationery according to claim 1. The guide tube has two guide grooves respectively formed on two opposite sides of the tube wall of the guide tube, and
The stationery according to claim 12, wherein the eraser holding device has two tightening protrusions respectively formed on two ends of the pressing slider. The pressing slider further includes two screw ribs respectively formed on end portions of the pressing slider and respectively installed in guide grooves of the guide tube,
The rotary knob further includes:
An inner screw formed on the inner surface of the rotary knob and engaged with the screw rib of the pressing slider;
On the outer end of the rotary knob to drive the push slider to move along the guide tube to allow the rotary knob to be rotated and to adjust the length of the eraser in the extension direction The stationery according to claim 13, having a head formed on the head.   15. The stationery of claim 14, wherein the guide tube comprises a guide segment that extends axially outward from the guide tube and forms an end of the guide segment that is spaced from the clamping segment. . The pressing slider is
A pressing plate and two ends installed in the passage of the guide tube;
Two clamping wings respectively formed at both ends of the pressing plate and installed in the guide groove of the guide tube, each clamping wing including two clamping wings having an inner part and an outer part ,
The fastening protrusions are respectively formed on the inner side of the fastening blade of the pressing slider;
The stationery according to claim 14, wherein the screw ribs are respectively formed on outer portions of the fastening blades of the pressing slider. The eraser holding device further includes an outer frame that is installed around the guide tube and has an inner end portion and an outer end portion,
The guide tube is installed separately in the outer frame, and
An inner end connected to the inner end of the outer frame;
An outer end extending from the outer end of the outer frame,
The stationery according to any one of claims 14 to 16, wherein the rotation knob is placed between the guide tube and the outer frame. The outer frame has a stop flange formed around an outer end of the outer frame and adjacent to the mouth of the retaining recess;
The stop flange has an inner surface and a positioning segment formed on the inner surface of the stop flange;
The stationery of claim 17, wherein the rotary knob has an engagement segment formed on an outer surface of the rotary knob and rotatably engaged with a positioning segment on the stop flange of the outer frame.   The stationery of claim 18, wherein the positioning segment includes at least one positioning flange and the engagement segment includes an annular recess seated around the at least one positioning flange. A holding end, a stationery functional end opposite the holding end, and a body having a holding recess defined in the holding end;
An eraser holding device installed in a holding recess of the main body for holding an eraser and adjusting an extension direction length of the eraser with respect to the main body,
An opening defined in the eraser holding device at a position relative to the holding end of the body; and
The eraser is slidably mounted in a holding recess of the main body and is slidable between the holding recess and an opening of the eraser holding device to adjust the length of the eraser in the extension direction with respect to the main body. An eraser holding device comprising a clamping segment with a plurality of clamping projections for pressing
The eraser holding device further includes
A guide tube having an elongate passage for holding the eraser therein and at least one guide groove defined in a longitudinal direction in the guide tube and a tube wall;
A pressing slider slidably mounted in the guide tube along at least one guide groove to act as a clamping segment of the eraser holding device, wherein the clamping projection is formed on the pressing slider, A slider,
A rotation knob mounted rotatably around the guide tube and connected to the pressure slider for driving the pressure slider to move;
The retaining recess has a bottom;
The guide tube has an inner end connected to the bottom of the holding recess;
The rotary knob has been laid between the main body and the guide tube Rubun Bogu.   21. A stationery according to claim 20, wherein the guide tube has an outer end extending from the holding recess.   The stationery according to claim 21, wherein a bottom portion of the holding recess extends integrally and laterally from a side wall of the main body. The retaining recess has an inner surface and a positioning segment formed on the inner surface of the retaining recess;
23. A stationery according to claim 22, wherein the rotary knob has an engagement segment formed on an outer surface of the rotary knob and rotatably engaged with the positioning segment in the holding recess. The positioning segment includes at least one positioning flange;
24. A stationery according to claim 23, wherein the engagement segment includes an annular recess seated around the at least one positioning flange. The stationery of claim 18, wherein the second buckling segment is formed on an inner surface of the outer frame . The first buckling segment includes two buckling cavities formed respectively on two opposite sides of the inner surface of the holding recess;
The second buckling segment includes two buckling bosses respectively formed on two opposite outer portions of the outer frame and projecting from the outer portion and engaging with the buckling recesses, respectively. The stationery according to 25.   27. The stationery of claim 26, wherein the outer frame has elastic slots formed laterally in the middle of the outer frame to divide the outer frame into two half frames.   The stationery of claim 18, wherein an outer end of the guide tube extends from the stop flange on the outer frame to cause a head of the rotary knob to adjoin a stop flange of the outer frame.   28. The stationery according to claim 27, wherein the guide groove corresponds to an elastic slot of the outer frame and extends from an inner end portion of the guide tube to a position passing through the stop flange.   The stationery of claim 17, further comprising a cap placed around the eraser holding device.   The stationery according to claim 17, wherein the outer frame has an elastic slot formed laterally in an intermediate portion of the outer frame to divide the outer frame into two half frames.   The stationery according to claim 31, wherein the guide groove corresponds to an elastic slot of the outer frame and extends from an inner end portion of the guide tube to a position passing through the stop flange. The stationery according to any one of claims 1 to 6 and 10 to 16, wherein a thin film dispenser having adhesiveness is provided at a stationery functional end of the main body.

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