WO2018170613A1 - 一种用于卷尺的划线装置及应用有该装置的卷尺 - Google Patents

一种用于卷尺的划线装置及应用有该装置的卷尺 Download PDF

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Publication number
WO2018170613A1
WO2018170613A1 PCT/CN2017/000260 CN2017000260W WO2018170613A1 WO 2018170613 A1 WO2018170613 A1 WO 2018170613A1 CN 2017000260 W CN2017000260 W CN 2017000260W WO 2018170613 A1 WO2018170613 A1 WO 2018170613A1
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WO
WIPO (PCT)
Prior art keywords
refill
casing
scribing
block
box
Prior art date
Application number
PCT/CN2017/000260
Other languages
English (en)
French (fr)
Inventor
周晓刚
Original Assignee
宁波宏迪尺业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波宏迪尺业有限公司 filed Critical 宁波宏迪尺业有限公司
Publication of WO2018170613A1 publication Critical patent/WO2018170613A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/10—Measuring tapes
    • G01B3/1071—Separate means for supporting or affixing measuring tapes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/10—Measuring tapes
    • G01B3/1084—Tapes combined with arrangements for functions other than measuring lengths
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/10—Measuring tapes
    • G01B3/1084—Tapes combined with arrangements for functions other than measuring lengths
    • G01B3/1089—Tapes combined with arrangements for functions other than measuring lengths for marking, drawing or cutting

Definitions

  • the present invention relates to the technical field of tape measures, and more particularly to a scribing device for a tape measure and a tape measure to which the device is applied.
  • the existing tape measure usually consists of a one-foot box, a tape provided in the ruler box and a hub, the tape is wound on the hub, and the tape head has a bent tongue which is stuck at the mouth of the ruler box. outer.
  • the user When using a tape measure for measurement operations, the user often needs to mark the length of the measurement. Since the ordinary tape measure is not equipped with any additional mechanism that can be marked or crossed, the user must additionally mark it with a pen or Dashing, but in actual use, it is often not at hand, so the ordinary tape measure is often inconvenient to use.
  • Patent No. ZL02286932.8 discloses a tape measure which can be simultaneously marked.
  • the tape measure is provided with a long and narrow blind hole in the side wall of the ruler box, and a refill and a spring are arranged in the blind hole, and the root of the refill is pressed by the spring, so that the head of the refill always faces the periphery of the reel.
  • the spring, the refill, and the circumference of the roller are all on the same line.
  • the ruler box When marking is required, the ruler box is moved, and the roller is rolled on the surface of the object to be measured, and the periphery of the roller is rubbed with the refill which is limited in the blind hole, thereby adhering the coloring material of the refill to the circumference of the roller.
  • the scrolling of the roller automatically leaves a mark on the surface of the object to be measured and becomes a mark such as a line.
  • the first technical problem to be solved by the present invention is to provide a scribing device for a tape measure which is convenient for adding a refill and a scribe function without limitation, and is more suitable for practical use.
  • a second technical problem to be solved by the present invention is to provide a tape measure to which the scribing device is applied.
  • a scribing device for a tape measure comprising a box body, a refill, and a rotatable scribing wheel, wherein a part of the circumferential surface of the scribing wheel is exposed
  • a core clip for accommodating the refill and a pushing mechanism for pushing a refill in the core clip so that it always has a tendency to abut against the scribing wheel.
  • the pushing mechanism may adopt various existing technologies, and the first preferred pushing mechanism includes an elastic member, a push button, a push rod, and a rotatable core clip which are sequentially disposed in the casing;
  • the core clip is rotatably positioned in the box body and rotatable relative to the box body about its central axis, and the core clip is provided with at least one recessed groove disposed parallel to the central axis of the core clip, and the refill is embedded in Within the slot;
  • the axis of the scribing wheel is perpendicular to the central axis of the core clip, and the circumferential position of the scribing wheel corresponds to the position of the push rod;
  • the push rod is parallel to the central axis of the core clip, the first end of the push rod is connected with the push button, and the second end is inserted into the corresponding recess to abut the root of the refill in the recess;
  • the push button can be positioned and moved along the central axis of the core clip in the casing, and the push button has an operation portion exposed outside the casing;
  • the elastic member is disposed between the inner side of the casing and the push button, so that the push button and the push rod have a tendency to push the refill to have a movement toward the scribing wheel.
  • the push button is further provided with a positioning rod, and the end of the positioning rod can be inserted into the insertion groove.
  • the above-mentioned push rod has the dual function of positioning the core clip (preventing its rotation) and pushing the refill, and the positioning rod only serves as a positioning.
  • the push rod and the positioning rod are preferably designed to be bilaterally symmetrical, so as to increase the stability of the movement of the push buttons and the like.
  • the core clip is further provided with a plurality of positioning slots disposed parallel to the central axis of the core clip, and the ends of the positioning rods can be inserted into the positioning slots or the recesses.
  • the positioning groove and the groove can be arranged at intervals, and the positioning rod and the push rod are symmetrically distributed along the central axis of the core clip, so that when the second end of the push rod is inserted into the groove, the positioning rod is just inserted. Go to the positioning slot.
  • the scribing device of the present invention further comprises a positioning rotating mechanism capable of positioning and rotating the core clip, the positioning rotating mechanism comprising a blocking portion disposed between the push button and the core clamp a small buckle and a small spring disposed between the baffle buckle and the core clip; wherein the baffle buckle is positioned in the box body, and the side of the baffle buckle is uniformly distributed around the central axis of the core clip There are a plurality of dimples, and the small marbles fall into one of the dimples, and the small spring sleeve is disposed outside the marbles and the two ends are abutted between the baffle buckle and the core clamp.
  • the push button is further provided with a positioning rod, and the end of the positioning rod can be inserted into the insertion groove: the baffle buckle is provided with two guiding holes in the direction of the central axis for the pushing The rod and the positioning rod are worn. The baffle buckle guides the movement of the push rod and the positioning rod.
  • the central axis of the core clip is provided with a convex shaft.
  • the baffle buckle is provided with a positioning hole for receiving the convex shaft of the core clip, and the positioning of the convex shaft and the baffle buckle of the core clip The hole is inserted to center the core clamp.
  • the refill is a pencil lead.
  • the box body comprises an upper box body and a lower box body which are vertically joined together, wherein the upper box body is provided with an elongated strip which is inserted through the operating portion of the push button and is parallel to the central axis of the core clip.
  • the groove exposes the operating portion to the outside of the casing, and the entire push button can be moved along the elongated slot.
  • the box body is provided with a stopping rod, the first end of the stopping rod is positioned on the box body to be rotatable around the positioning point, and the second end is buckled on the gear to stop the rotation of the scribing wheel .
  • the stop lever prevents the scribing wheel from rotating unexpectedly and avoids contamination of the environment.
  • the second preferred pushing mechanism comprises a pen push block and a tension spring disposed in the casing;
  • the refill block can move relative to the box body in a vertical position, the refill block has a pushing portion, and the pushing portion abuts the tail portion of the refill, and the head of the refill is offset from the circumferential surface of the scribing wheel;
  • the first end of the tension spring is connected to the refilling block, and the second end is connected to the side of the inner side of the casing adjacent to the scribing wheel, and the pushing portion of the refilling block pushes the refill by the tension spring to make the refill Always have a tendency to abut the scribing wheel;
  • the refill block can also move relative to the box body in the lateral direction, so that the pushing portion of the refill block can be disengaged from the tail of the refill.
  • the core clip is a pluggable refill box inserted into the casing from the outside, and the plurality of refills are juxtaposed in the refill box, and the refill pushed by the pushing portion is close to the inner side of the refill box. That one.
  • the pluggable refill box is inserted from the front side of the box body, and the inner side of the refill box adjacent to the refill push block is vertically opened. a sliding groove, the pushing portion of the refill block can protrude into the refill box through the first chute, and can move vertically along the first chute relative to the refill box; and, the front side of the box body
  • the position of the pushing portion corresponding to the refill block is provided with an elongated hole jack.
  • the refill box is inserted from the side of the box body, and the inner end surface of the refill box is opened with a second sliding slot in the vertical direction, and the refill push block
  • the pushing portion can extend into the refill box through the second chute and can move vertically along the second chute relative to the refill box; and the side of the box body corresponds to the pushing portion of the refill push block
  • the position is set with a long hole jack.
  • the bottom of the refilling block has a hook for pulling the first end of the tension spring, and a protrusion is arranged in the casing adjacent to the position of the scribing wheel for The second end of the tension spring is pulled.
  • the front surface of the box body is opened with a “7” type moving groove
  • the front surface of the refilling piece has an outwardly protruding operation portion, and the operating portion passes through the moving groove and is exposed outside the front surface of the box body.
  • the refill block can be moved relative to the box in the vertical and horizontal limits.
  • the push portion of the refill block can be separated from the tail of the refill, and the operation is very simple.
  • the tape measure of the above-mentioned scribing device includes a ruler box and a ruler disposed in the ruler box, and the ruler belt can be removed from the side of the ruler box.
  • the telescopic expansion of the box mouth is characterized in that the scribing device is located adjacent to the mouth of the ruler, and the axis of the scribing wheel is parallel to the telescopic direction of the tape.
  • the ruler box is provided with a first card slot for the scribing device to be embedded.
  • the mounting method of the box body of the scribing device on the ruler box may be fixed by screws or adhesive bonding, or the box body itself and the ruler box may be integrally formed, that is, the two are integrally injection molded.
  • the ruler box is disposed on the side wall of the first card slot and further provided with a second card slot, and the bottom of the second card slot has an opening to communicate with the outside, and the box body is disposed at a position corresponding to the second card slot.
  • a button exposed on the box body, and a return spring is arranged between the button and the box body, and the button body is integrally connected with a card block. In the state where the return spring is reset, the card block is stuck in the second card slot, at the button In the pressed state, the block can be removed downward from the opening at the bottom of the second card slot.
  • the ruler box is disposed on the side wall of the first card slot and further provided with a third card slot;
  • the button body is provided with a button exposed on the box body and controlled by the button at a position corresponding to the third card slot.
  • the lock block that moves in the limit position is provided with a return spring between the right end of the lock block and the box body, and the left end of the lock block is locked in the third card slot, and the lock block moves to the right when the button is pressed. And out of the third card slot.
  • the lock block has a driving portion on a side close to the button, and the driving portion has an inclined surface inclined in the left-right direction, and the inner side wall of the button is also With a matching inclined surface, the inner side wall of the button always adheres to the inclined surface of the driving portion.
  • a plurality of refills are placed in the core clip, one of the refills is in a working state, that is, it is actually involved in the scribing work, and the remaining refills are used for reserve, and the pushing mechanism pushes only the refill of the working state to make it abut On the wheel surface of the scribing wheel, thus, when the scribing wheel rolls, the coloring material of the refill is naturally taken out, the scribing function of the tape measure is realized, and, because the refill has a plurality of refills in the core clip, the scribing is performed
  • the life cycle of the function is not limited, making the product more suitable for practical use.
  • the elastic member can push the push button and the push rod, and the push rod pushes the refill
  • the head of the refill is always abutted on the circumferential surface of the scribing wheel, and the scribing wheel naturally takes out the coloring material of the refill when the scribing wheel rolls, thereby realizing the scribing function of the tape measure;
  • the core clip can be placed with a plurality of refills, so that the tape measure has its own refill.
  • the refill in one of the cavities is used up, just turn the core clip and align the effective refill with the push rod. New and old replacements are completed, and new refills can be installed in the slot at any time, making it easy to add, so that the life cycle of the tape measure function is not limited, and the product is more suitable for practical use.
  • the push portion of the refill push block keeps pushing the refill and the refill is always
  • the utility model has the tendency of abutting against the scribing wheel, and when the scribing wheel rolls, the colored material of the refill is naturally taken out, and the scribing function of the tape measure is realized;
  • the refill block can move laterally to the left and right limits relative to the box body, assuming that the refill is placed at the right position of the refill block, when the refill block moves relative to the box to the leftmost left limit position
  • the push portion of the refill push block leaves the tail position of the refill.
  • the refill and the core clip can be taken out, a new refill is added, or the refill is adjusted.
  • the tape measure of the present invention to which the scribing device is applied also has the above advantages.
  • the scribing device of the present invention can also be used in other products that require scribing or marking when working.
  • FIG. 1 is a schematic structural view of a first embodiment of a scribing apparatus according to the present invention
  • FIG. 2 is a schematic structural view of the first embodiment of the scribing device of the present invention after removing the upper casing (in a non-working state, that is, the core clamp is rotatable);
  • FIG 3 is another schematic structural view of the first embodiment of the scribing device of the present invention after removing the upper casing (in the working state, the core clamp cannot be rotated);
  • Figure 4 is an exploded perspective view showing a first embodiment of the scribing device of the present invention.
  • FIG. 5 is a schematic view showing the assembly of a core clip, a small spring, and a marble in the first embodiment of the scribing apparatus of the present invention
  • FIG. 6 is a schematic structural view of a first embodiment of a tape measure according to the present invention.
  • Figure 7 is a partial cross-sectional view of the first embodiment of the tape measure of the present invention at one of the screws;
  • Figure 8 is a schematic structural view of a second embodiment of the tape measure of the present invention.
  • FIG. 9 is a schematic structural view of a tape measure case in the second embodiment of the tape measure of the present invention.
  • Figure 10 is a front elevational view of Figure 8.
  • Figure 11 is a cross-sectional view taken along line A-A of Figure 10;
  • Figure 12 is a front elevational view showing a third embodiment of the tape measure of the present invention.
  • Figure 13 is a partial cross-sectional view taken along line B-B of Figure 12;
  • Figure 14 is a schematic structural view of a tape measure case of the third embodiment of the tape measure of the present invention.
  • FIG. 15 is a schematic structural view of a second embodiment of the scribing apparatus of the present invention (the refill box and the refill are omitted);
  • Figure 16 is a schematic view showing the structure of the second embodiment of the scribing device of the present invention after the upper case is removed (the refill box and the refill are normally placed);
  • 17 is a schematic structural view of the second embodiment of the scribing device of the present invention after removing the upper casing (working state, omitting the refill box and part of the refill to see the refill and other components in the working state);
  • FIG. 18 is another schematic structural view of the second embodiment of the present invention after the upper casing is removed (the non-working state, the refill and the refill cartridge can be taken out, and the refill box and part of the refill are omitted to see the work. Status refills and other components);
  • Figure 19 is an exploded perspective view of the second embodiment of the scribing device of the present invention (the refill cartridge is omitted and only one refill of the working state is displayed);
  • FIG. 20 is a schematic structural view of a second embodiment of the scribing device of the present invention (a refilled state of the refill box);
  • 21 is a schematic structural view of a third embodiment of the scribing device of the present invention (a refilled state of the refill box);
  • Figure 22 is a schematic structural view (working state) of the third embodiment of the scribing device of the present invention after removing the upper casing;
  • FIG. 23 is a schematic structural view of a third refill box and a refill according to an embodiment of the scribing apparatus of the present invention.
  • Embodiment 1 of the scribing device for the tape measure is a scribing device for the tape measure
  • the scribing device includes a casing 1, an elastic member 3 sequentially disposed in the casing 1, a push button 2, a push rod 6, a rotatable core clip 4, a refill 40, and a rotatable scribing wheel 7.
  • the elastic member 3, the push button 2, and the push rod 6 constitute a pushing mechanism for pushing one of the refills 40 in the core clip 4 so as to always abut against the scribing wheel 7.
  • the casing 1 is formed by vertically joining the upper casing 11 and the lower casing 12 to form a hollow structure.
  • the core clip 4 is positioned in the casing 1 and rotatable relative to the casing 1 about its central axis L.
  • the core clamp 4 has a substantially cylindrical shape as a whole, and the center of the head and tail surfaces has an outward direction.
  • the extending convex shaft 43 becomes the central axis L of the core clip 4, and the outer peripheral surface of the core clip 4 is provided with at least one fitting groove 41 and a positioning groove 42 which are parallel to the central axis L of the core clip 4.
  • the recessed groove 41 and the positioning groove 42 are respectively provided with three, the insertion groove 41 is a through groove, and both ends are open, and the positioning groove 42 is closed near one end of the scribing wheel 7, and the three positioning grooves 42 and three The cavities 41 are spaced apart from each other.
  • the refill 40 can be embedded in each of the recesses 41.
  • the refill 40 is a pencil lead, and the side of the recess 41 is open to expose the refill 40 to the core clip.
  • the scribing wheel 7 has a centrally disposed rotating shaft 71 and a peripheral surface 72 having serrations.
  • the scribing wheel 7 is rotatably restrained in the casing 1 by the rotating shaft 71, and a part of the circumferential surface 72 of the scribing wheel 7 is exposed.
  • the axis of the rotating shaft 71 is perpendicular to the central axis L of the core clamp 4 except for the casing 1.
  • the push rod 6 is disposed in parallel with the central axis L of the core clip 4.
  • the first end 61 of the push rod 6 is connected to the push button 2, and the second end 62 can be inserted into any of the recesses 41 to be embedded therein.
  • the root of the refill 40 in the groove 41 abuts, so that the head of the refill 40 always abuts against the circumferential surface 72 of the scribing wheel 7, in other words, the push rod 6, one of the cavities 41 and the refill 40 therein,
  • the positions of the circumferential faces 72 of the scribing wheels 7 are all in the same straight line.
  • the push rod 6 has the dual function of positioning the core clip 4 to prevent it from rotating and pushing the refill 40.
  • the push button 2 can be positioned and moved along the central axis L of the core clip 4 in the casing 1.
  • the push button 2 has an operation portion 21 for the user to push, and the upper casing 11 is provided with the operation portion 21 for the operation portion 21.
  • the elongated slot 13 which is disposed and which is parallel to the central axis L of the core clip 4 exposes the operating portion 21 to the outside of the casing 1, and the entire push button 2 can be moved along the elongated slot 13.
  • the elastic member 3 is disposed between the inner side of the casing 1 and the push button 2, so that the push button 2 and the push rod 6 have a tendency to push the refill 40 to have a tendency to move toward the scribing wheel 7, which is elastic in this embodiment.
  • Piece 3 is a long spring.
  • the push button 2 is further provided with a positioning rod 6a.
  • the positioning rod 6a and the push rod 6 are symmetrically distributed about the central axis L of the core clip 4, and the three positioning grooves 42 and the three recessed grooves 41 in this embodiment. Interlaced interval setting Next, when the second end 62 of the push rod 6 is inserted into a recess 41, the positioning rod 6a is inserted into one of the positioning grooves 42.
  • the locking of the core clip 4 needs to be released.
  • the specific operation is: pushing the push button 2 backward by operating the operating portion 21, the push rod 6
  • the second end 62 is disengaged from the corresponding recessed groove 41, the core clamp 4 is unlocked, the core clamp 4 is rotated, and the effective refill 40 is aligned with the position of the peripheral surface 72 of the push rod 6 or the scribing wheel 7, and released.
  • Push button 2 push rod 6 is reinserted into the corresponding recessed groove 41 to abut the root of the effective refill 40, thereby completing the old and new replacement. Mounting a new refill 40 on the core clip 4 is a similar operation.
  • the elastic member 3 can push the push button 2 and the push rod 6, and the push rod 6 pushes the refill 40 so that the head of the refill 40 always abuts against the circumferential surface of the scribing wheel 7. 72, and the positioning rod 6a is inserted into the corresponding positioning groove 42.
  • the circumferential surface 72 naturally takes out the coloring material of the refill 40, leaving a mark on the surface of the object to be measured, and realizing the tape measure. Line function.
  • the box body 1 is provided with a stopping rod 8
  • the first end 81 of the stopping rod 8 has a positioning shaft 83 and is positioned on the box body 1 to be rotatable about the positioning shaft 83
  • the second end 82 can be buckled
  • the rotation of the scribing wheel 7 is stopped on the circumferential surface 72 of the scribing wheel 7, thereby preventing the scribing wheel 7 from being accidentally rotated, thereby avoiding contamination of the use environment.
  • the scribing device in this embodiment further includes a positioning rotating mechanism capable of positioning and rotating the core clip 4, and the positioning rotating mechanism includes a baffle button 5 disposed between the push button 2 and the core clip 4, and is disposed in the block A small marble 53 and a small spring 54 between the buckle 5 and the core clamp 4.
  • the baffle buckle 5 is positioned in the casing 1.
  • the side of the baffle buckle 5 is uniformly provided with a plurality of dimples 51 centered on the central axis L of the core clamp 4, and the small marbles 53 fall on one of the dimples.
  • the small spring 54 is sleeved outside the marble 53 and both ends are abutted between the baffle buckle 5 and the core clamp 4.
  • Two guide holes 55 are defined in the baffle buckle 5 along the central axis L to respectively pass the push rod 6 and the positioning rod 6a.
  • the second end 62 of the push rod 6 passes through the guide hole 55 of the baffle buckle 5 and abuts against the root of the refill 40, and the end of the positioning rod 6a also passes through the other guide hole 55 to be inserted into the positioning.
  • the baffle buckle 5 can guide the movement of the push rod 6 and the positioning rod 6a.
  • the central axis L of the core clip 4 is provided with a convex shaft 43.
  • the baffle buckle 5 is provided with a positioning hole 52 for receiving the convex shaft 43 of the core clip 4, and centrally positioning the core clip 4. effect.
  • a first embodiment of a tape measure to which the above-described scribing device is applied is the present invention.
  • the application has a tape measure of the scribing device, which comprises a ruler box 9 and a tape 10 disposed in the ruler box 9.
  • the tape 10 can be stretched from the side of the ruler box 91 at the side of the ruler box 9, adjacent to the ruler box mouth
  • the position of 91 is provided with a card slot 92 for the scribing device to be embedded, wherein the axis of the scribing wheel 7 (i.e., the rotating shaft 71) is parallel to the telescopic direction of the tape 10 (this feature can be combined with Figs. 6 and 8).
  • the casing 1 of the scribing device is fixedly coupled to the ruler 9 of the tape measure by screws 93.
  • the second embodiment of the present invention is applied to the tape measure of the above-mentioned scribing device
  • a second embodiment of the tape measure to which the above-described scribing device is applied is provided.
  • the difference between this embodiment and the first embodiment of the above tape measure is that a movable disassembly mechanism is provided between the casing 1 of the scribing device and the ruler box 9, so that the entire scribing device can be movably mounted from the ruler box 9. , disassembly.
  • the second box slot 94 is disposed on the sidewall of the first card slot 92, and the bottom of the second card slot 94 has an opening 95, and the opening 95 communicates with the outside;
  • a button 14 exposed to the casing 1 is disposed on the casing 1 at a position corresponding to the second slot 94.
  • a return spring 15 is disposed between the button 14 and the casing 1. The return spring 15 enables the button 14 to be lifted up, and the button 14 is integrally connected with a block 14a. In a state where the return spring 15 is reset, the block 14a is caught in the second slot 94 and cannot be removed from the opening 95, and is reset in a state where the button 14 is pressed. The spring 15 is compressed and the block 14a is removable downwardly from the opening 95 in the bottom of the second card slot 94.
  • a third embodiment of the tape measure to which the above-described scribing device is applied is provided.
  • the difference between this embodiment and the first embodiment of the above tape measure is that a movable disassembly mechanism is provided between the casing 1 of the scribing device and the ruler box 9, so that the entire scribing device can be movably mounted from the ruler box 9. , disassembly.
  • the ruler box 9 is located on the side wall of the first card slot 92 is further provided with a third card slot 96;
  • a button 17' exposed to the casing 1 and a lock block 16 movable by the left and right limit controlled by the button 17' are disposed on the casing 1 at a position corresponding to the third card slot 96.
  • the right end of the lock block 16 and the casing 1 are A return spring 18' is disposed between the reset springs 18', and the left end of the lock block 16 is engaged in the third card slot 96.
  • the return spring 18' is disposed. Compressed, the lock block 16 will move to the right to escape from the third card slot 96.
  • the specific structure of the button 17' controlling the left and right limit movement of the lock block 16 is as follows: the lock block 16 has a driving portion 16a on the side close to the button 17', and the driving portion 16a has an inclined surface 16b inclined in the left-right direction, and the button 17
  • the inner side wall of the 'the inner side wall also has a matching inclined surface, and the inner side wall of the button 17' is always attached to the inclined surface 16b of the driving portion 16a.
  • the pressing button 17' is pressed against the opposite side of the inclined surface 16b of the lock block 16 by the inner side wall thereof.
  • Embodiment 2 of the scribing device for the tape measure :
  • the scribing device includes a casing 1, a pluggable refill cartridge 7', a scribing wheel 3' provided in the casing 1, a refill push block 4', and a tension spring 5'.
  • the refill push block 4' and the tension spring 5' constitute a urging mechanism for urging one of the refills 2' in the refill case 7' so as to always abut against the scribing wheel 3'.
  • the casing 1 is formed by vertically joining the upper casing 11' and the lower casing 12', and is fixedly connected by a plurality of screws 6' to form a hollow structure.
  • the scribing wheel 3' has a circumferential surface 31' and a laterally projecting axle 32'.
  • the circumferential surface 31' has serrations, and the scribing wheel 3' is rotatably limited by the rotation of the axle 32' in the casing 1. Inside the casing 1, and a part of the circumferential surface 31' of the scribing wheel 3' is exposed outside the bottom of the casing 1.
  • the refill push block 4' has a pushing portion 41' protruding to the right side, the bottom surface of the pushing portion 41' is opposed to the tail portion 21' of the refill 2', and the head 22' of the refill 2' is always kept and stroked.
  • the circumferential surface 31' of the reel 3' is offset.
  • a plurality of refills 2' are juxtaposed in the pluggable refill box 7', and a front side of the box body 1 is provided with an elongated hole jack 13' through which the refill box 7' passes.
  • the strip-shaped insertion hole 13' is inserted from the front surface of the casing 1, and the elongated insertion hole 13' corresponds to the position of the pushing portion 41'.
  • the refill 2' and the refill cartridge 7' are located on the right side of the refill push block 4', and the refill 2' has a head portion 22' and a tail portion 21'.
  • a first sliding slot 71' is vertically opened in a side of the refill cartridge 7' adjacent to the refilling block 4', and the pushing portion 41' of the refilling block 4' can pass through the first sliding slot 71'.
  • Extending into the refill box 7' and vertically moving along the first chute 71' relative to the refill box 7' and the bottom surface of the pushing portion 41' and the inside of the refill box 7' closest to the first chute 71 The tail of the 'Refill 2' is offset.
  • the notch size of the first chute 71' is smaller than the diameter of the refill 2' to prevent the refill 2' from running out of the first chute 71'.
  • the bottom of the refill push block 4' has a curved hook 43' for hooking the first end 51' of the tension spring 5', and a post 14' is disposed in the box body 1 adjacent to the scribing wheel 3' for
  • the second end 52' of the tension spring 5' is hooked, that is, the first end 51' of the tension spring 5' is connected to the refill push block 4', and the second end 52' is opposite to the inner side of the casing 1 by the scribing wheel 3'. That side is connected.
  • pulling the refill push block 4' by the tension spring 5' causes the push portion 41' of the refill push block 4' to keep pushing the refill 2' so that the refill 2' always has a tendency to abut against the scribing wheel 3'.
  • the scribing wheel 3' rolls its peripheral surface 31' naturally brings out the coloring material of the refill 2', leaving a mark on the surface of the object to be measured, thereby realizing the scribing function of the tape measure.
  • the upper case 11' that is, the front side of the case 1 is provided with a "7" type moving groove 16'
  • the front surface of the pen push block 4' has an outwardly protruding operation portion 42', and the operation portion 42 'Through the moving groove 16' and exposed outside the front surface of the casing 1, so that the refill block 4' can be moved relative to the box body 1 in the vertical and lateral directions, thereby realizing the refill block 4' relative to each other.
  • the box body 1 is moved in a vertical direction (ie between the top and the bottom of the box body 1), and can also be moved relative to the box body 1 in the lateral direction.
  • the refill push block 4' In the case where the refill 2' is located on the right side of the refill push block 4', when the user laterally pushes the operation portion 42', the refill push block 4' is moved relative to the case 1 to the leftmost left limit. In the position of the position, the pushing portion 41' of the refill block 4' leaves the tail position of the refill 2', at which time the refill 2' and the entire refill cartridge 7' can be taken out.
  • Embodiment 3 of the scribing device for the tape measure :
  • 21-23 is a third embodiment of the scribing apparatus of the present invention.
  • the difference between this embodiment and the second embodiment of the scribing apparatus lies in the insertion mode and structure of the refill box.
  • the side of the casing 1 is provided with a long jack. 13"
  • the pluggable refill cartridge 7" is inserted through the elongated jack 13" from the side of the casing 1, and the inner end surface of the refill cartridge 7" has a second chute 71" vertically.
  • the pushing portion 41' of the refill push block 4' can protrude into the refill case 7" through the second chute 71" and can move vertically along the second chute 71" relative to the refill box 7" and The bottom surface of the pushing portion 41' abuts against the tail portion of the refill 2' closest to the second chute 71" in the cartridge cartridge 7".
  • the notch size of the second chute 71" is smaller than the diameter of the refill 2' to prevent the refill 2' from running out of the second chute 71".

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adhesive Tape Dispensing Devices (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

一种用于卷尺的划线装置和应用有该划线装置的卷尺，划线装置包括盒体（1）、笔芯（40）、可转动的划线轮（7）和依次设置在盒体（1）内的弹性件（3）、推钮（2）、推杆（6）、可转动的芯夹（4），其中，芯夹（4）上开设有至少一个嵌槽（41），笔芯（40）就嵌设在嵌槽（41）之内，推杆（6）、嵌槽（41）及笔芯（40）、划线轮（7）的周面（72）三者位置相对齐，在弹性件（3）的作用下，使推钮（2）以及推杆（6）具有推动笔芯（40）而使其向划线轮（7）抵靠，该划线装置及卷尺，便于添加笔芯，划线功能的使用周期不受限制，更适于实际使用。

Description

一种用于卷尺的划线装置及应用有该装置的卷尺 技术领域
本发明涉及卷尺的技术领域，尤其涉及一种用于卷尺的划线装置及应用有该装置的卷尺。
背景技术
卷尺作为一种易于携带的测量工具，已成为很多行业的工作人员必备工具之一。现有的卷尺通常由一尺盒、设置在尺盒内的尺带与轮毂组成，尺带卷绕在轮毂上，尺带头部具有弯折的舌片，该舌片卡在尺盒口部之外。
使用者在使用卷尺进行测量操作时，往往需要在测定的长度位置加上标记，由于普通的卷尺没有配备任何可以进行标记或者划线的附加机构，此时，使用者必须另行用笔加以标记或划线，但在实际使用时，往往笔不在手边，因此，普通的卷尺实际使用时多有不便。
中国专利CN2593152Y(专利号ZL02286932.8)就公开了一种可以同时进行标记的卷尺。该卷尺是在尺盒的侧壁设置一狭长的盲孔，在该盲孔内设置笔芯和弹簧，通过弹簧对笔芯根部的紧抵，而使笔芯的头部始终与滚轮的周边相抵，弹簧、笔芯、滚轮的周面这三者位于同一条直线上。当需要进行标记时，移动尺盒，并使滚轮在被测物体的表面滚动，滚轮的周边与限位在盲孔内的笔芯发生摩擦，从而将笔芯的着色物料粘附在滚轮的周面上，最终通过滚轮的滚动在被测物体的表面上自动留下滚痕而成为线条等标记。
不难发现，在上述专利的技术方案中，尺盒内的笔芯只能设置一根，这就使得这已标记功能的使用周期非常有限；当这唯一的一根笔芯用尽时，我们推断(并未在上述专利文献中公开)只能将滚轮从尺盒上拆除后，方可添加新的笔芯，如此的更换操作十分不便；如果由非专业人士进行如此操作，很可能会损坏尺盒，从而报废整个卷尺，这显然不适于实际需求。
发明内容
本发明所要解决的第一个技术问题是针对现有技术的现状，提供一种便于添加笔芯、划线功能的使用周期不受限制、更适于实际使用的用于卷尺的划线装置。
本发明所要解决的第二个技术问题是提供一种应用有该划线装置的卷尺。
本发明解决上述第一个技术问题所采用的技术方案为：一种用于卷尺的划线装置，包括盒体、笔芯和可转动的划线轮，其中，划线轮的部分周面露出于盒体之外，其特征在于：还包括用于容置笔芯的芯夹和用于推动芯夹中的一根笔芯而使其始终具有向划线轮抵靠趋势的推动机构。
所述推动机构可以采用现有的各种技术，第一种优选的推动机构包括依次设置在盒体内的弹性件、推钮、推杆、可转动的芯夹；
其中，所述芯夹可转动地定位在盒体之中而可绕其中心轴相对盒体转动，芯夹上开设有至少一个平行于芯夹中心轴设置的嵌槽，笔芯就嵌设在嵌槽之内；
所述划线轮的轴心与芯夹的中心轴相垂直，且划线轮的周面位置与推杆的位置相对应；
所述推杆与芯夹的中心轴相平行，该推杆的第一端与推钮相连、第二端可插入到对应的嵌槽内而与嵌槽内的笔芯的根部相抵；
所述推钮可在盒体内沿芯夹的中心轴定位移动，且推钮具有露于盒体之外的外突的操作部；
所述弹性件设置在盒体内侧与推钮之间，使推钮以及推杆具有推动笔芯而使其具有向划线轮移动的趋势。
优选地，所述推钮上还设置有定位杆，该定位杆的端部可插入嵌槽之中。上述的推杆具有定位芯夹(防止其转动)和推动笔芯的双重作用，而该定位杆仅起到定位作用。推杆与定位杆以左右对称设计为佳，以增加推钮等部件的移动动作的稳定性。
优选地，所述芯夹上还开设有多个平行于芯夹中心轴设置的定位槽，该定位杆的端部可插入定位槽或嵌槽之中。具体实施时，定位槽与嵌槽可互为间隔设置，定位杆与推杆则以芯夹的中心轴对称分布，如此，当推杆的第二端插入到嵌槽内时，定位杆正好插入到定位槽内。
为实现芯夹能等间距地定位转动，优选地，本发明的划线装置还包括一能使芯夹定位转动的定位转动机构，该定位转动机构包括设置在推钮与芯夹之间的挡板扣、设置在挡板扣与芯夹之间的一小弹珠和一小弹簧；其中，挡板扣定位在盒体中，挡板扣的侧面上以芯夹的中心轴为中心均布有多个凹坑，小弹珠就落在其中一个凹坑中，小弹簧套设在弹珠之外且两端抵在挡板扣与芯夹之间。
优选地，所述推钮上还设置有定位杆，该定位杆的端部可插入嵌槽之中：所述挡板扣上、沿中心轴方向开设有两个导向孔，以供所述推杆与定位杆的穿设。该挡板扣对推杆与定位杆的移动起到导向作用。
优选地，所述芯夹的中心轴处设置有凸轴，对应地，所述挡板扣上设置有一定位孔，以容纳芯夹的凸轴，通过芯夹的凸轴与挡板扣的定位孔的插配，能对芯夹起到中心定位作用。
优选地，所述的笔芯为一铅笔芯。
优选地，所述盒体包括上下对合而成的上盒体与下盒体，其中上盒体设置有一供推钮的操作部穿设的、且与芯夹的中心轴平行的长条形槽，而使操作部外露于盒体外，且整个推钮就可沿长条形槽限位移动。
优选地，所述盒体上设置有一个止动杆，止动杆的第一端定位在盒体上可绕定位点转动，第二端可抵扣在齿轮上而止住划线轮的转动。止动杆能防止划线轮意外转动，避免污染使用环境。
第二种优选的推动机构包括设置在盒体内的笔芯推块、拉簧；
所述笔芯推块能相对盒体沿竖向限位移动，笔芯推块上具有推动部，推动部与笔芯的尾部相抵，而笔芯的头部与划线轮的周面相抵；
所述拉簧的第一端与笔芯推块相连，第二端与盒体内侧靠近划线轮的那一侧相连，通过拉簧使笔芯推块的推动部推动笔芯而使笔芯始终具有向划线轮抵靠的趋势；
并且，所述笔芯推块还能相对盒体沿横向限位移动，使笔芯推块的推动部能脱离对笔芯尾部的紧抵。
优选地，所述芯夹为一从外部插入到盒体内的可插拔式笔芯盒，多根笔芯并列排放在笔芯盒内，推动部所推动的笔芯为靠近笔芯盒内侧的那一根。
作为一种可插拔式笔芯盒的优选插入方式，所述可插拔式笔芯盒从盒体正面插入，该笔芯盒中邻近笔芯推块的那面内侧沿竖向开有第一滑槽，所述笔芯推块的推动部能通过该第一滑槽伸入到笔芯盒内、并能沿该第一滑槽相对笔芯盒竖向移动；并且，盒体的正面、对应笔芯推块的推动部的位置设置有一个长条形孔插孔。
作为另一种可插拔式笔芯盒的优选插入方式，所述笔芯盒从盒体侧面插入，该笔芯盒的内侧端面沿竖向开有第二滑槽，所述笔芯推块的推动部能通过该第二滑槽伸入到笔芯盒内、并能沿该第二滑槽相对笔芯盒竖向移动；并且，盒体的侧面、对应笔芯推块的推动部的位置设置有一个长条形孔插孔。
为方便拉簧的设置，优选地，所述笔芯推块的底部具有弯勾，以供拉簧的第一端勾拉，所述盒体内邻近划线轮的位置设置有一凸柱，以供拉簧的第二端勾拉。
优选地，所述盒体的正面开有“7”型移动槽，而笔芯推块的正面具有外突的操作部，该操作部穿过所述移动槽并露于盒体正面之外，从而实现笔芯推块能相对盒体沿竖向和横向的限位移动。使用者横向推动笔芯推块的操作部，就可以使笔芯推块的推动部离开笔芯的尾部，操作非常简便。
本发明解决上述第二个技术问题所采用的技术方案为：该应用有上述划线装置的卷尺，包括尺盒和设置在尺盒内的尺带，尺带可从尺盒的侧部的尺盒口处伸缩，其特征在于：所述划线装置位于邻近尺盒口的位置，并且，所述划线轮的轴心与尺带的伸缩方向平行。
优选地，所述尺盒上设置有供划线装置嵌设的第一卡槽。
划线装置的盒体在尺盒上的安装方式，可以是通过螺钉固定或粘接固定，也可以是盒体本身与尺盒为一体件，即两者为一体注塑成型。
为便于活动拆卸，尺盒与划线装置的盒体之间以设置活动拆卸机构为佳，也即，划线装置能在尺盒上活动安装、拆卸。具体方案之一：尺盒位于第一卡槽的侧壁上还设置有第二卡槽，且第二卡槽的底部有开口而与外界相通，盒体上在对应第二卡槽的位置设置有一外露于盒体的按钮，按钮与盒体之间设置有复位弹簧，按钮一体相连有一卡块，在复位弹簧复位的状态下，所述卡块卡入在第二卡槽之中，在按钮被按下的状态下，卡块可从第二卡槽底部的开口向下移出。
具体方案之二：尺盒位于第一卡槽的侧壁上还设置有第三卡槽；盒体上在对应第三卡槽的位置设置有一外露于盒体的按钮和受按钮控制的可左右限位移动的锁块，锁块的右端与盒体之间设置有复位弹簧，锁块的左端卡入在第三卡槽之中，在按钮被按下的状态下，锁块会向右移动而从第三卡槽中脱出。
为便于实现按钮对锁块左右限位移动的控制，优选地，所述锁块在靠近按钮的一侧具有一驱动部，该驱动部具有左右方向倾斜的倾斜面，所述按钮的内侧壁也具有相配的倾斜面，按钮的内侧壁始终与驱动部的倾斜面相贴。
与现有技术相比，本发明的优点在于；
多根笔芯放置在芯夹中，其中一根笔芯为工作状态，即真正参与划线工作，其余笔芯用于储备，而推动机构仅推动那根工作状态的笔芯，使其抵靠在划线轮的轮面上，从而，当划线轮滚动时会自然地带出笔芯的着色物料，实现卷尺的划线功能，并且，由于芯夹中储备有多根笔芯，使得划线功能的使用周期不受限制，使产品更适于实际使用。
对于第一种推动机构的设计，即通过可转动的芯夹以及弹性件、推钮、推杆、划线轮的一系列设计，弹性件能推动推钮和推杆，推杆则推动笔芯使笔芯的头部始终抵靠在划线轮的周面上，划线轮滚动时会自然地带出笔芯的着色物料，实现卷尺的划线功能；
而芯夹可以放置多根笔芯，使卷尺自带有备用的笔芯，当一个嵌槽内的笔芯用完时，只需转动芯夹，使有效的笔芯对准推杆，即可完成新旧更替，并且，新的笔芯可随时安装到嵌槽之中，轻松实现添加，使卷尺划线功能的使用周期没有限制，产品更适于实际使用。
对于第二种推动机构的设计，即笔芯推块、拉簧的设计，在拉簧对笔芯推块的拉动作用下，使笔芯推块的推动部保持推动笔芯而使笔芯始终具有向划线轮抵靠的趋势，当划线轮滚动时会自然地带出笔芯的着色物料，实现卷尺的划线功能；
同时，笔芯推块能相对盒体横向地左右限位移动，假定笔芯设置在笔芯推块的右侧位置，当笔芯推块相对盒体移动到最左侧的左限位位置时，笔芯推块的推动部就离开笔芯的尾部位置，此时，笔芯以及芯夹可取出，添加上新的笔芯，或进行笔芯的调整。
应用有该划线装置的本发明的卷尺也具有如上优势。本发明的划线装置还可以用在其他工作时需要进行划线或标记的产品之中。
附图说明
图1为本发明划线装置的实施例一的结构示意图；
图2为本发明划线装置的实施例一移去上盒体后的结构示意图(非工作状态下，即芯夹可转动状态)；
图3为本发明划线装置的实施例一移去上盒体后的另一结构示意图(工作状态下，即芯夹不能转动状态)；
图4为本发明划线装置的实施例一的立体分解图；
图5为本发明划线装置的实施例一中芯夹与小弹簧、弹珠的装配示意图；
图6为本发明卷尺的实施例一的结构示意图；
图7为本发明卷尺的实施例一在其中一个螺钉处的局部剖视图；
图8为本发明卷尺的实施例二的结构示意图；
图9为本发明卷尺的实施例二中卷尺尺盒的结构示意图；
图10为图8的正视图；
图11为图10中A-A向剖视图；
图12为本发明卷尺的实施例三的正视图；
图13为图12中B-B向局部剖视图；
图14为本发明卷尺的实施例三中卷尺尺盒的结构示意图；
图15为本发明划线装置的实施例二的结构示意图(省略了笔芯盒以及笔芯)；
图16为本发明划线装置的实施例二移去上盒体后的结构示意图(笔芯盒以及笔芯正常放入状态)；
图17为本发明划线装置的实施例二移去上盒体后的结构示意图(工作状态，省略笔芯盒及部分笔芯，以看清工作状态的笔芯及其他部件)；
图18为本发明划线装置的实施例二移去上盒体后的另一结构示意图(非工作状态，笔芯以及笔芯盒可取出，省略笔芯盒及部分笔芯，以看清工作状态的笔芯及其他部件)；
图19为本发明划线装置的实施例二的立体分解图(省略了笔芯盒且仅显示一根工作状态的笔芯)；
图20为本发明划线装置的实施例二的结构示意图(笔芯盒拔出状态)；
图21为本发明划线装置的实施例三的结构示意图(笔芯盒拔出状态)；
图22为本发明划线装置的实施例三移去上盒体后的结构示意图(工作状态)；
图23为本发明划线装置的实施例三笔芯盒及笔芯的结构示意图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
用于卷尺的划线装置之实施例一：
如图1-5所示，为本发明用于卷尺的划线装置的第一个优选实施例。该划线装置，包括盒体1、依次设置在盒体1内的弹性件3、推钮2、推杆6、可转动的芯夹4、笔芯40以及一可转动的划线轮7。
其中，弹性件3、推钮2、推杆6构成用于推动芯夹4中的一根笔芯40而使其始终向划线轮7抵靠的推动机构。
所述盒体1由上盒体11与下盒体12上下对合而成，形成中空的结构。
所述芯夹4定位在盒体1之中而可绕其中心轴L相对盒体1转动，在本实施例中，芯夹4整体大致呈圆柱体形状，首尾表面的中心处均具有向外延伸的凸轴43而成为芯夹4的中心轴L，芯夹4的外周表面上开设有至少一个平行于芯夹4中心轴L的嵌槽41和定位槽42。在本实施例中，该嵌槽41和定位槽42各设置有三个，嵌槽41为通槽、两端开口，而定位槽42靠近划线轮7的一端封闭，三个定位槽42与三个嵌槽41相互交错间隔设置。
所述笔芯40可以有三根，分别嵌设在每个嵌槽41之内，本实施例中该笔芯40为铅笔芯，嵌槽41的侧部开口而使笔芯40部分外露于芯夹4之外，方便使用者观察笔芯40的长短使用情况，以及更替新的笔芯。
所述划线轮7具有中心设置的转轴71和具有细齿的周面72，划线轮7通过转轴71可转动地限位在盒体1中，划线轮7的部分周面72露出于盒体1之外，转轴71的轴心与芯夹4的中心轴L相垂直。
所述推杆6与芯夹4的中心轴L相平行设置，该推杆6的第一端61与推钮2相连、第二端62可插入到任一的嵌槽41内而与该嵌槽41内的笔芯40根部相抵，从而使笔芯40的头部始终抵在划线轮7的周面72上，换言之，推杆6、其中一个嵌槽41及其内的笔芯40、划线轮7的周面72位置均处于同一条直线。该推杆6具有定位芯夹4而防止其转动，以及推动笔芯40的双重作用。
所述推钮2可在盒体1内沿芯夹4的中心轴L定位移动，具体地，推钮2具有供使用者推动的操作部21，且上盒体11设置有一供该操作部21穿设的、且与芯夹4的中心轴L平行的长条形槽13，而使操作部21外露于盒体1外，且整个推钮2就可沿长条形槽13限位移动。
所述弹性件3设置在盒体1内侧与推钮2之间，使推钮2以及推杆6具有推动笔芯40而使其具有向划线轮7移动的趋势，本实施例中该弹性件3为长弹簧。
此外，推钮2上还设置有定位杆6a，该定位杆6a与推杆6以芯夹4的中心轴L为中心左右对称分布，在本实施例三个定位槽42与三个嵌槽41相互交错间隔设置的情况 下，当推杆6的第二端62插入到一个嵌槽41内时，定位杆6a正好插入到其中一个定位槽42内。
当某一嵌槽41内的笔芯40用完而需要转动芯夹7时，则需解除对芯夹4的锁定，具体操作是：通过操作操作部21向后推动推钮2，推杆6的第二端62从相应的嵌槽41中脱出，芯夹4即解除锁定，转动芯夹4，将有效的笔芯40对准推杆6或划线轮7的周面72所在位置，释放推钮2，推杆6重新插入到相应的嵌槽41中而抵住有效笔芯40的根部，从而完成新旧更替。在芯夹4上安装新的笔芯40也是类似的操作。
当卷尺在使用过程中需要划线时，弹性件3能推动推钮2和推杆6，推杆6则推动笔芯40使笔芯40的头部始终抵靠在划线轮7的周面72上，而定位杆6a插入对应的定位槽42中，划线轮7滚动时其周面72会自然地带出笔芯40的着色物料，在被测物体的表面上留下记号，实现卷尺的划线功能。
同时，盒体1上设置有一个止动杆8，该止动杆8的第一端81具有定位轴83而定位在盒体1上可绕该定位轴83转动，第二端82可抵扣在划线轮7的周面72上而止住划线轮7的转动，从而防止划线轮7意外转动，避免污染使用环境。
进一步，本实施例中的划线装置还包括一能使芯夹4定位转动的定位转动机构，该定位转动机构包括设置在推钮2与芯夹4之间的挡板扣5、设置在挡板扣5与芯夹4之间的一小弹珠53和一小弹簧54。
其中，挡板扣5定位在盒体1中，挡板扣5的侧面上以芯夹4的中心轴L为中心均布有多个凹坑51，小弹珠53就落在其中一个凹坑51中，小弹簧54套设在弹珠53之外且两端抵在挡板扣5与芯夹4之间。
挡板扣5上、沿中心轴L方向开设有两个导向孔55，以分别供所述推杆6与定位杆6a的穿设。
本实施例中，推杆6的第二端62穿过挡板扣5的导向孔55后与笔芯40的根部相抵，定位杆6a的端部也穿过另一个导向孔55而插入到定位槽42内，从而通过挡板扣5可对推杆6与定位杆6a的移动起到导向作用。此外，芯夹4的中心轴L处设置有凸轴43，对应地，所述挡板扣5上设置有一定位孔52，以容纳芯夹4的凸轴43，对芯夹4起到中心定位作用。
本发明应用有上述划线装置的卷尺之实施例一：
如图6-7所示，为本发明应用有上述划线装置的卷尺的第一个实施例。该应用有该划线装置的卷尺，其包括尺盒9和设置在尺盒9内的尺带10，尺带10可从尺盒9的侧部的尺盒口91处伸缩，邻近尺盒口91的位置设置有供划线装置嵌设的卡槽92，其中划线轮7的轴心(即转轴71)与尺带10的伸缩方向平行(该特征可以结合图6与图8)。在本实施例中，划线装置的盒体1通过螺钉93与卷尺的尺盒9固定连接。
本发明应用有上述划线装置的卷尺之实施例二；
如图8-11所示，为本发明应用有上述划线装置的卷尺的第二个实施例。本实施例与上述卷尺的第一个实施例的区别点在于：划线装置的盒体1与尺盒9之间设置有活动拆卸机构，而使整个划线装置能从尺盒9上活动安装、拆卸。
具体地，尺盒9位于第一卡槽92的侧壁上还设置有第二卡槽94，且第二卡槽94的底部有开口95，开口95与外界相通；
盒体1上在对应第二卡槽94的位置设置有一外露于盒体1的按钮14，按钮14与盒体1之间设置有复位弹簧15，复位弹簧15能使按钮14向上顶起，按钮14一体相连有一卡块14a，在复位弹簧15复位的状态下，所述卡块14a卡入在第二卡槽94之中而不能从开口95移出，在按钮14被按下的状态下，复位弹簧15被压缩，卡块14a可从第二卡槽94底部的开口95向下移出。
本发明应用有上述划线装置的卷尺之实施例三：
如图12-14所示，为本发明应用有上述划线装置的卷尺的第三个实施例。本实施例与上述卷尺的第一个实施例的区别点在于：划线装置的盒体1与尺盒9之间设置有活动拆卸机构，而使整个划线装置能从尺盒9上活动安装、拆卸。
具体地，尺盒9位于第一卡槽92的侧壁上还设置有第三卡槽96；
盒体1上在对应第三卡槽96的位置设置有一外露于盒体1的按钮17’和受按钮17’控制的可左右限位移动的锁块16，锁块16的右端与盒体1之间设置有复位弹簧18’，在复位弹簧18’复位的状态下，锁块16的左端卡入在第三卡槽96之中，在按钮17′被按下的状态下，复位弹簧18’被压缩，锁块16会向右移动而从第三卡槽96中脱出。
按钮17’控制锁块16左右限位移动的具体结构如下：锁块16在靠近按钮17’的一侧具有一驱动部16a，该驱动部16a具有左右方向倾斜的倾斜面16b，所述按钮17’的内侧壁也具有相配的倾斜面，按钮17’的内侧壁始终与驱动部16a的倾斜面16b相贴，如此，按压按钮17’，通过其内侧壁与锁块16倾斜面16b的相对抵触、滑动，锁块16能向右侧移动，解除对按钮17’的按压后，在复位弹簧18’的作用下，锁块16自然向第三卡槽96方向移动。
用于卷尺的划线装置之实施例二：
如图15-20所示，为本发明划线装置的第二个优选实施例。该划线装置包括：盒体1、可插拔式笔芯盒7’、设置在盒体1内的划线轮3’、笔芯推块4’、拉簧5’。
其中，笔芯推块4’、拉簧5’构成用于推动笔芯盒7’中的一根笔芯2’而使其始终向划线轮3’抵靠的推动机构。
盒体1由上盒体11’与下盒体12’上下对合而成，并通过多个螺钉6’固定连接，形成中空的结构。
划线轮3’具有周面31’和侧向凸出的轮轴32’，周面31’具有细齿，划线轮3’通过轮轴32’在盒体1内限位而可转动的限位于盒体1内，并且，划线轮3’的部分周面31’露出于盒体1底部之外。
笔芯推块4’上具有向右侧凸出的推动部41’，推动部41’的底面与笔芯2’的尾部21’相抵，而笔芯2’的头部22’始终保持与划线轮3’的周面31’相抵。
本实施例中，可插拔式笔芯盒7’内并列排放有多根笔芯2’，盒体1的正面设置有一个长条形孔插孔13’，笔芯盒7’通过该长条形插孔13’而从盒体1的正面插入，且长条形插孔13’与推动部41’的位置相对应。在本实施例中，笔芯2’及笔芯盒7’位于笔芯推块4’的右侧，笔芯2’具有头部22’和尾部21’。
该笔芯盒7’中邻近笔芯推块4’的那面内侧沿竖向开有第一滑槽71’，笔芯推块4’的推动部41’能通过该第一滑槽71’伸入到笔芯盒7’内，并能沿该第一滑槽71’相对笔芯盒7’竖向移动且推动部41’的底面与笔芯盒7’内最靠近第一滑槽71’的那根笔芯2’的尾部相抵。并且，第一滑槽71’的槽口尺寸小于笔芯2’的直径，以防止笔芯2’从第一滑槽71’中跑出。
笔芯推块4’的底部具有弯勾43’，以供拉簧5’的第一端51’勾拉，盒体1内邻近划线轮3’的位置设置有一凸柱14’，以供拉簧5’的第二端52’勾拉，即拉簧5’的第一端51’与笔芯推块4’相连，第二端52’与盒体1内侧靠近划线轮3’的那一侧相连。如此，通过拉簧5’拉动笔芯推块4’使笔芯推块4’的推动部41’保持推动笔芯2’而使笔芯2’始终具有向划线轮3’抵靠的趋势。划线轮3’滚动时其周面31’会自然地带出笔芯2’的着色物料，在被测物体的表面上留下记号，实现卷尺的划线功能。
本实施例中，在上盒体11’，即盒体1的正面设置有一“7”型移动槽16’，笔芯推块4’的正面具有外突的操作部42’，该操作部42’穿过移动槽16’并露于盒体1正面之外，从而实现笔芯推块4’能相对盒体1沿竖向和横向的限位移动，从而实现笔芯推块4’能相对盒体1沿竖向(即盒体1的顶部与底部之间)作限位移动，同时也能相对盒体1沿横向左右限位移动；
在本实施笔芯2’位于笔芯推块4’右侧的设置情况下，当使用者横向推动操作部42’，使笔芯推块4’相对盒体1移动到最左侧的左限位位置时，笔芯推块4’的推动部41’离开笔芯2’的尾部位置，此时，笔芯2’以及整个笔芯盒7’能取出。
用于卷尺的划线装置之实施例三：
如图21-23所示，为本发明划线装置的第三个实施例。该实施例与划线装置实施例二的不同点在于笔芯盒的插入方式和结构，具体为：盒体1的侧面设置有一长条形插孔 13”，可插拔式笔芯盒7”通过该长条形插孔13”从盒体1的侧面插入，该笔芯盒7”的内侧端面沿竖向开有第二滑槽71”，笔芯推块4’的推动部41’能通过该第二滑槽71”伸入到笔芯盒7”内、并能沿该第二滑槽71”相对笔芯盒7”竖向移动且推动部41’的底面与笔芯盒7”内最靠近第二滑槽71”的那根笔芯2’的尾部相抵。
在本实施例中，并且第二滑槽71”的槽口尺寸小于笔芯2’的直径，以防止笔芯2’从第二滑槽71”中跑出。

Claims (21)

  1. 一种用于卷尺的划线装置，包括盒体(1)、笔芯(40；2’)和可转动的划线轮(7；3’)，其中，划线轮(7；3’)的部分周面(72；31’)露出于盒体(1)之外，其特征在于：还包括用于容置笔芯(40；2’)的芯夹(4；7’)和用于推动芯夹中的一根笔芯(40；2’)而使其始终具有向划线轮(7；3’)抵靠趋势的推动机构。
  2. 根据权利要求1所述的划线装置，其特征在于：所述推动机构包括依次设置在盒体(1)内的弹性件(3)、推钮(2)、推杆(6)；
    其中，所述芯夹(4)可转动地定位在盒体(1)之中而可绕其中心轴(L)相对盒体(1)转动，芯夹(4)上开设有至少一个平行于芯夹(4)中心轴(L)设置的嵌槽(41)，笔芯(40)就嵌设在嵌槽(41)之内；
    所述划线轮(7)的轴心与芯夹(4)的中心轴(L)相垂直，且划线轮(7)的周面(72)位置与推杆(6)的位置相对应；
    所述推杆(6)与芯夹(4)的中心轴(L)相平行，该推杆(6)的第一端(61)与推钮(2)相连、第二端(62)可插入到对应的嵌槽(41)内而与嵌槽(41)内的笔芯(40)的根部相抵：
    所述推钮(2)可在盒体(1)内沿芯夹(4)的中心轴(L)定位移动，且推钮(2)具有露于盒体(1)之外的外突的操作部(21)；
    所述弹性件(3)设置在盒体(1)内侧与推钮(2)之间，使推钮(2)以及推杆(6)具有推动笔芯(40)而使其具有向划线轮(7)移动的趋势。
  3. 根据权利要求2所述的划线装置，其特征在于：所述推钮(2)上还设置有定位杆(6a)，该定位杆(6a)的端部可插入嵌槽(41)之中。
  4. 根据权利要求3所述的划线装置，其特征在于：所述芯夹(4)上还开设有多个平行于芯夹(4)中心轴(L)设置的定位槽(42)，该定位杆(6a)的端部可插入定位槽(42)或嵌槽(41)之中.
  5. 根据权利要求2所述的划线装置，其特征在于：还包括一能使芯夹(4)定位转动的定位转动机构，该定位转动机构包括设置在推钮(2)与芯夹(4)之间的挡板扣(5)、设置在挡板扣(5)与芯夹(4)之间的一小弹珠(53)和一小弹簧(54)；
    其中，挡板扣(5)定位在盒体(1)中，挡板扣(5)的侧面上以芯夹(4)的中心轴(L)为中心均布有多个凹坑(51)，小弹珠(53)就落在其中一个凹坑(51)中，小弹簧(54)套设在弹珠(53)之外且两端抵在挡板扣(5)与芯夹(4)之间。
  6. 根据权利要求5所述的划线装置，其特征在于：所述推钮(2)上还设置有定位杆(6a)，该定位杆(6a)的端部可插入嵌槽(41)之中；
    所述挡板扣(5)上、沿中心轴(L)方向开设有两个导向孔(55)，以供所述推杆(6)与定 位杆(6a)的穿设。
  7. 根据权利要求5所述的划线装置，其特征在于：所述芯夹(4)的中心轴(L)处设置有凸轴(43)，对应地，所述挡板扣(5)上设置有一定位孔(52)，以容纳芯夹(4)的凸轴(43)。
  8. 根据权利要求1所述的划线装置，其特征在于：所述的笔芯(40)为一铅笔芯。
  9. 根据权利要求2所述的划线装置，其特征在于：所述盒体(1)包括上下对合而成的上盒体(11)与下盒体(12)，其中上盒体(1)设置有一供推钮(2)的操作部(21)穿设的、且与芯夹(4)的中心轴(L)平行的长条形槽(13)。
  10. 根据权利要求2所述的划线装置，其特征在于：所述盒体(1)上设置有一个止动杆(8)，止动杆(8)的第一端(81)定位在盒体(1)上可绕第一端(81)转动，第二端(82)可抵扣在周面(72)上而止住划线轮(7)的转动。
  11. 根据权利要求1所述的划线装置，其特征在于：所述推动机构包括设置在盒体(1)内的笔芯推块(4’)、拉簧(5’)；
    所述笔芯推块(4’)能相对盒体(1)沿竖向限位移动，笔芯推块(4’)上具有推动部(41’)，推动部(41’)与笔芯(2’)的尾部(21’)相抵，而笔芯(2’)的头部(22’)与划线轮(3’)的周面(31’)相抵；
    所述拉簧(5’)的第一端(51’)与笔芯推块(4’)相连，第二端(51’)与盒体(1)内侧靠近划线轮(3’)的那一侧相连，通过拉簧(5’)使笔芯推块(4’)的推动部(41’)推动笔芯(2’)而使笔芯(2’)始终具有向划线轮(3’)抵靠的趋势；
    并且，所述笔芯推块(4’)还能相对盒体(1)沿横向限位移动，使笔芯推块(4’)的推动部(41’)能脱离对笔芯(2’)尾部(21’)的紧抵。
  12. 根据权利要求11所述的划线装置，其特征在于：所述芯夹为一从外部插入到盒体(1)内的可插拔式笔芯盒(7’)，多根笔芯(2’)并列排放在笔芯盒(7’)内，推动部(41’)所推动的笔芯(2’)为靠近笔芯盒(7’)内侧的那一根。
  13. 根据权利要求12所述的划线装置，其特征在于：所述笔芯盒(7’)从盒体(1)正面插入，该笔芯盒(7’)中邻近笔芯推块(4’)的那面内侧沿竖向开有第一滑槽(7’)，所述笔芯推块(4’)的推动部(41’)能通过该第一滑槽(71’)伸入到笔芯盒(7’)内、并能沿该第一滑槽(71’)相对笔芯盒(7’)竖向移动；
    并且，盒体(1)的正面、对应笔芯推块(4’)的推动部(41’)的位置设置有一个长条形插孔(13’)。
  14. 根据权利要求12所述的划线装置，其特征在于：所述笔芯盒(7”)从盒体(1)侧面插入，该笔芯盒(7”)的内侧端面沿竖向开有第二滑槽(71”)，所述笔芯推块(4’)的推动部(41’)能通过该第二滑槽(71”)伸入到笔芯盒(7”)内、并能沿该第二滑槽(71”)相对笔芯盒(7”)竖向移动；
    并且，盒体(1)的侧面、对应笔芯推块(4’)的推动部(41’)的位置设置有一个长条形插孔(13”).
  15. 根据权利要求11所述的划线装置，其特征在于：所述笔芯推块(4’)的底部具有弯勾(43’)，以供拉簧(5’)的第一端勾拉，所述盒体(1)内邻近划线轮(3’)的位置设置有一凸柱(14’)，以供拉簧(5’)的第二端勾拉。
  16. 根据权利要求11所述的划线装置，其特征在于：所述盒体(1)的正面开有“7”型移动槽(16’)，而笔芯推块(4’)的正面具有外突的操作部(42’)，该操作部(42’)穿过所述移动槽(16’)并露于盒体(1)正面之外，从而实现笔芯推块(4’)能相对盒体(1)沿竖向和横向的限位移动。
  17. 一种应用有如权利要求1-16中任一划线装置的卷尺，包括尺盒(9)和设置在尺盒(9)内的尺带(10)，尺带(10)可从尺盒(9)的侧部的尺盒口(91)处伸缩，其特征在于：所述划线装置位于邻近尺盒口(91)的位置，并且，所述划线轮(7)的轴心与尺带(10)的伸缩方向平行。
  18. 根据权利要求17所述的卷尺，其特征在于：所述尺盒(9)上设置有供划线装置嵌设的第一卡槽(92)。
  19. 根据权利要求18所述的卷尺，其特征在于：划线装置的盒体(1)与尺盒(9)之间设置有活动拆卸机构，具体为：尺盒(9)位于第一卡槽(92)的侧壁上还设置有第二卡槽(94)，且第二卡槽(94)的底部有开口(95)，盒体(1)上在对应第二卡槽(94)的位置设置有一外露于盒体(1)的按钮(14)，按钮(14)与盒体(1)之间设置有复位弹簧(15)，按钮(14)一体相连有一卡块(14a)，在复位弹簧(15)复位的状态下，所述卡块(14a)卡入在第二卡槽(94)之中，在按钮(14)被按下的状态下，卡块(14a)可从第二卡槽(94)底部的开口(95)向下移出。
  20. 根据权利要求18所述的卷尺，其特征在于：划线装置的盒体(1)与尺盒(9)之间设置有活动拆卸机构，具体为：尺盒(9)位于第一卡槽(92)的侧壁上还设置有第三卡槽(96)；
    盒体(1)上在对应第三卡槽(96)的位置设置有一外露于盒体(1)的按钮(17′)和受按钮(17′)控制的可左右限位移动的锁块(16)，锁块(16)的右端与盒体(1)之间设置有复位弹簧(18′)，锁块(16)的左端卡入在第三卡槽(96)之中，在按钮(17′)被按下的状态下，锁块(16)会向右移动而从第三卡槽(96)中脱出。
  21. 根据权利要求20所述的卷尺，其特征在于：所述锁块(16)在靠近按钮(17′)的一侧具有一驱动部(16a)，该驱动部(16a)具有左右方向倾斜的倾斜面(16b)，所述按钮(17′)的内侧壁也具有相配的倾斜面，按钮(17′)的内侧壁始终与驱动部(16a)的倾斜面(16b)相贴.
PCT/CN2017/000260 2017-03-23 2017-03-29 一种用于卷尺的划线装置及应用有该装置的卷尺 WO2018170613A1 (zh)

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