JP5306918B2 - Writing instrument - Google Patents

Description

  The present invention relates to a writing instrument on which a USB connection device having a USB connection terminal can be mounted.

  Conventionally, a writing instrument having a USB connection terminal and configured to be equipped with a so-called USB memory has been disclosed. Patent Document 1 discloses a USB memory mounting structure that is detachably mounted on a writing instrument.

  In the writing instrument disclosed in Patent Document 1, the cylindrical cartridge (9) to which the USB memory is mounted is locked inside the rear outer cylinder (2) of the writing instrument (1). To lock the cylindrical cartridge (9), the guided portion (93) formed in the cylindrical cartridge (9) is guided by the cartridge guide portion (25) formed in the inner peripheral surface of the rear outer cylinder (2). The cylindrical cartridge (9) is inserted while being inserted. Then, the cartridge locking portion (24) formed in the rear outer cylinder (2) and the concave portion (91b) formed in the cylindrical cartridge (9) are engaged to be locked.

  Further, the USB memory (10) includes a memory body (11) and a tail plug (12). The USB memory (10) is inserted while being guided by a slit-like opening (92c) formed in the cylindrical cartridge (9) at a pair of side ends of the memory body (11). And the to-be-locked convex part (12d) formed in the tail plug (12) is fitted into the fitting part (92e) formed in the cylindrical cartridge (9) by a predetermined amount of turning operation of the tail plug (12). ).

  In another embodiment disclosed in Patent Document 1, a structure in which the tail plug (114) of the USB memory (112) is directly locked into the memory accommodating hole (106c) of the rear outer cylinder (106). Is disclosed. In detail, the locked recess (114d) formed in the protrusion (114b) of the tail plug (114) is locked to the memory locking portion (106e) of the memory receiving hole (106c). Yes.

JP-A-2005-319669

  In the above-described structure for locking the USB memory to the writing instrument, the inner part of the rear outer cylinder and the tail plug must be engaged with each other in order to be attached to the rear outer cylinder (the rear part of the writing instrument shaft cylinder). To be complicated. In particular, in the structure in which the cylindrical cartridge is further provided in the rear outer cylinder, not only the number of members is increased, but also a guide section for guiding the cylindrical cartridge or the cylindrical shape as compared with the case where the USB memory is directly attached to the rear outer cylinder. It is necessary to further provide a structure for locking the cartridge. Also, the installation of the USB memory is complicated, for example, by inserting it into the rear part of the writing instrument and then rotating the tail plug to complete the locking.

  The present invention is formed so that a shaft cylinder and a semiconductor memory can be mounted, and has a USB connection terminal. The USB connection terminal is provided with a lock hole. A writing instrument having a locking projection that can be freely engaged, and having the USB connection terminal inserted therein and a USB terminal slot formed at a rear end of the shaft cylinder.

  According to the present invention, a USB connection device on which a semiconductor memory having a USB connection terminal connected to an information device such as a personal computer can be mounted (so-called USB memory or a USB connection terminal on which various memory cards can be appropriately selected and mounted. A memory card adapter etc.) can be directly attached to the rear end of the writing instrument and removed. Therefore, the writing instrument can be used even when the USB connection device is connected to a personal computer. In addition, since the mounting structure is formed by using a locking hole that is always provided in the USB connection terminal according to the USB standard, it is not necessary to adopt a special complicated configuration. Furthermore, the USB connection device can be attached to the writing instrument simply by inserting it into the USB terminal slot. This operation is the same as the connection to a personal computer or the like, which can be understood intuitively and is easy to operate. Furthermore, since it is fitted with a locking hole already provided by the USB standard, the feeling of insertion can be made the same.

It is a front view which shows the whole writing instrument which concerns on this invention. (A) It is the longitudinal cross-sectional view of FIG. 1, (b) is a principal part expanded longitudinal cross-sectional view of (a). It is the (III)-(III) sectional view taken on the line of Fig.2 (a). It is a figure which shows an example of a USB connection apparatus.

  Embodiments of the present invention will be described below with reference to the drawings (FIGS. 1 to 4). In the following description, the forward direction refers to the direction of the pen tip side.

  In FIG. 1, 1 is a writing instrument according to the present invention. The shaft cylinder main body 2 is formed in a substantially cylindrical shape. A grip 3 and a tip 4 are mounted in front of the shaft cylinder body 2. By forming the grip 3 with a soft material or the like, the grip feeling during writing can be improved. A shaft tube is formed by the shaft tube main body 2, the grip 3, and the front end 4. The shaft tube body 2, the grip 3, and the tip 4 may be formed integrally with each other instead of separate components.

  Furthermore, a rotating cam member 5 is rotatably provided at the rear end of the shaft cylinder body 2. A USB connection device 100 is attached to the rotating cam member 5. Further, the rotating cam member 5 is provided with a clip 6 having an opening / closing function.

  In FIG. 2A, the shaft cylinder main body 2, the grip 3, and the tip 4 are connected by a cylindrical front shaft 7 and a joint member 8 housed in the writing instrument. The front shaft 7 is formed in a cylindrical shape, and the joint member 8 is provided with a cylindrical flange portion, and a male screw portion is formed on the outer periphery of the cylindrical portion. The front end of the front shaft 7 is press-fitted to the rear inner peripheral surface of the front opening 4. On the other hand, the rear end of the front shaft 7 is press-fitted to the inner peripheral surface of the joint member 8. A grip 3 is attached to the outer periphery of the front shaft 11 between the joint member 8 and the front end 4.

  On the other hand, the rear side of the joint member 8 is screwed with a female screw portion formed on the inner peripheral surface of the front end portion of the shaft tube main body 2. A ring member 9 is provided between the front end of the shaft tube main body 2 and the flange portion of the joint member 8. The ring member 9 is composed of a cylindrical portion formed with a short longitudinal direction and a portion projecting annularly on the inner peripheral surface. The annular projecting portion of the ring member 9 is nipped and fixed by the front end of the shaft cylinder body 2 and the flange portion of the joint member 8. The cylindrical portion is formed so as to cover a part of the rear end portion of the grip 3. The ring member 9 is provided mainly for decorative purposes.

  In this embodiment, the shaft cylinder body 2 is formed by injection molding of a resin material, the tip 4, the front shaft 7, and the joint member 8 are formed by a metal member such as brass, and the grip 3 is formed by extrusion molding of a silicon material. Has been.

  Note that the shaft tube of the writing instrument 1 (shaft tube body 2, grip 3, tip 4, front shaft 7, joint member 8, ring member 9) is already a well-known technique, such as Japanese Patent Application Laid-Open No. 2004-90269. Is disclosed.

  Inside the writing instrument 1, three ballpoint pen refills 10 that are writing cores are provided. A slide piece 11 is attached to the rear end of each ballpoint pen refill 10. The front of the slide piece 11 is formed in a cylindrical shape, and a part of the rear end portion of the ballpoint pen refill 10 is press-fitted and detachably fitted. Further, a guide portion 2 a for guiding the slide piece 11 in the longitudinal direction of the writing instrument 1 (shaft tube body 2) is formed inside the shaft tube body 2. A divider 2a1 that partitions the three ballpoint pen refills 10 is provided in front of the guide 2a. Between the divider part 2a1 and the front end of the slide piece 11, a coil spring 12 as an urging means is elastically provided. Since the divider part 2a1 is fixed to the shaft cylinder body 2, the slide piece 11 is urged rearward.

  A rotating cam member 5 is rotatably provided at the rear end portion of the shaft tube main body 2. The front portion of the rotating cam member 5 is formed in a cylindrical shape as a whole, and an inclined surface 5a is formed at the end. The inclined surface 5a and the follower portion 11a of the slide piece 11 are slidably engaged. In other words, the follower portion 11a slides along the inclined surface 5a. Therefore, by rotating the rotating cam member 5, the slide piece 11 (follower portion 11a) relatively moves along the inclined surface 5a. Since the slide piece 11 is guided only in the longitudinal direction of the writing instrument 1 by the guide portion 2a, the pen tip of one ball-point pen refill 10 is sequentially fed out from the opening of the tip 4.

  Note that the above-described feeding mechanism of the writing core such as the ballpoint pen refill 10 is a conventionally known technique, and is disclosed in Japanese Patent Application Laid-Open No. 2001-71679.

  On the outer peripheral surface of the rotating cam member 5 (operation unit 50), a pedestal portion 5b for receiving the fulcrum 6a of the clip 6 is formed. The pedestal 5b is provided with a hole 5b1, and one end of the leaf spring 13 is inserted and fixed, and the other end is locked to the clip 6 so that the clip 6 is held by the leaf spring 13. . Thereby, the clip 6 can be operated so that opening and closing is possible centering on the fulcrum 6a.

  About the structure of the clip 6 formed so that opening and closing is possible, it is a conventionally well-known technique and is disclosed by Unexamined-Japanese-Patent No. 2001-146094 etc.

  On the other hand, an operation unit 50 is provided at a rear portion of the rotating cam member 5. The operation unit 50 is provided with a USB terminal slot 51. The USB connection device 100 is inserted into the USB terminal slot 51.

  The USB connection device 100 in this embodiment is shown in FIG. 4 and is a so-called USB memory adapter that can be used by inserting a memory card (semiconductor memory) (for example, a micro SD card) having various capacities. The USB connection device 100 (USB memory adapter) includes a main body 101 and a USB connection terminal 102. By inserting a memory card (not shown) into a slot 101a provided on one side of the main body and connecting the USB connection terminal 102 at the other end to a USB connection port of a personal computer (not shown) in the same manner, an external storage medium ( It can be used as a so-called USB memory. It can be used when a memory card of various capacities is selected according to the use application of the user, or when it is desired to read / browse information of a memory card already inserted in a mobile phone or the like with a personal computer or the like.

  The USB connection terminal 102 and the locking hole 102a provided in the USB connection terminal 102 are formed based on the USB standard (A type). Therefore, in the USB connection device (USB memory or the like) other than the USB connection device 100 exemplified in the present embodiment, the size and the like of the USB connection terminal 102 are formed to be the same. Based on the USB standard, the locking holes 102a are provided at two locations (4 locations in total) on each of the one surface shown and the opposite surface (not shown).

  In addition, the side surface 101b which the main-body part 101 opposes is formed in the concave circular arc shape. Thereby, it becomes the structure which is easy to pinch with a user's finger (thumb and forefinger).

  On the other hand, in the USB terminal slot 51, there are provided locking projections 51a corresponding to the four locking holes 102a provided in the USB connection terminal 102 described above so as to be engageable with each other (FIG. 2 ( b) and FIG. 3). Both inclined side surfaces 51a1 in the longitudinal direction of the writing tool 1 of the locking projection 51a are set so that the inclination angle is an acute angle. Thereby, the engagement with the engagement hole 102 a is smoothly performed, and the engagement protrusion 51 a that is minutely formed is not scraped off at the front end of the USB connection terminal 102. Furthermore, the lateral width W and height T (see FIG. 3) of the USB terminal slot 51 are set so as to be close to or in contact with each side surface of the corresponding USB connection terminal 102. Therefore, since the USB connection terminal 102 is configured to be guided and inserted, the locking hole 102a and the locking projection 51a are reliably engaged.

  Of the two sets of locking projections 51a, a space 52 is formed below the locking projection 51a provided on the opposite side of the clip 6 (in the outer peripheral direction of the writing instrument 1). The space portion 52 is formed in a hole shape from both side surfaces (right and left directions toward the pen tip side) of the operation portion 50 to the inside, and is formed in a long hole shape in a side view ( (See FIG. 1). And the wall which partitions the space part 52 in the downward direction (periphery direction of the writing instrument 1) between 1 set of latching convex parts 51a provided in the opposite side to the clip 6 (in other words, between the space parts 52 which oppose). A portion 53 is formed.

  Thus, by providing the space portion 52, the locking convex portion 51 a provided above the space portion 52 (on the center side of the writing instrument 1) (in other words, on the side opposite to the clip 6) has the USB connection terminal 102. When inserted, one side surface of the USB connection terminal 102 is pressed by climbing onto the upper surface of the locking convex portion 51a and is pushed into the space portion 52 side. And if the latching convex part 51a engages with the latching hole 102a, it will return to a regular position. In other words, the locking projection 51a on the opposite side of the clip 6 engages with the locking hole 102a, with the base 51a2 supporting the locking projection 51a on the opposite side of the clip 6 exhibiting a hinge effect. Therefore, the operation effect of the inclined surface 51a1 of the locking projection 51a is also helped, so that the insertion feel becomes smoother, and the locking projection 51a that is formed minutely is scraped off at the front end of the USB connection terminal 102. Etc. can be prevented. Further, since the base portion 51a2 is supported by the wall portion 53, the base portion 51a2 acts so as to exert the hinge effect more remarkably.

  The shield case of a USB standard (A type) receptacle (in other words, a USB connection port provided in a personal computer or the like) is usually formed into a rectangular cylindrical shape by processing a metal plate made of a copper alloy having conductivity. Is done. The locking claw that locks with the locking hole 102a of the plug (USB connection terminal 102) of the USB connection device 100 has one end fixed to the side surface of the long side of the rectangular cylindrical shape of the shield case, and the periphery thereof is substantially omitted. It is formed by punching into a triangular shape (not shown). However, when it is desired to attach the USB connection device 100 to a writing instrument for the purpose of making it easy to carry, the metal shield case normally used for the receptacle is not necessary. Therefore, by adopting the configuration of the present invention and further forming the USB terminal slot 50 from a resin molded product usually used in a writing instrument, the locking hole 102a of the USB connection terminal 102 can be used without using a metal shield case. A locked structure can be achieved. Therefore, a writing instrument that can easily form a USB connected device without adopting a special configuration on the USB connected device side and adopting a special and complicated structure on the writing tool side as in the prior art. Can be provided. Moreover, since the USB connection device can be attached to the writing instrument in the same manner as that attached to the USB connection port provided in a personal computer or the like, the attachment / detachment operation is intuitive and easy.

  In this embodiment, a groove 51b is further provided between the two locking projections 51a on the clip 6 side. As a result, when the USB connection device 100 cannot be taken out due to some trouble, a pin or the like formed in a key shape is inserted into the groove 51b and hooked on the front end of the USB connection terminal 102 to forcibly connect the USB connection device 100. Can be taken out.

  Further, a partition wall 54 is provided between the rear portion (USB terminal slot 51) of the rotating cam member 5 and the front portion of the rotating cam member 5. As a result, even if ink leakage occurs from the ballpoint pen refill 10, the USB connection device 100 can be prevented from being soiled. Further, by forming a convex shape on the front part side (in other words, forming the concave part on the rear part side), a gate position at the time of injection molding is provided in the concave part on the rear part side, or a product number is stamped, etc. Can be provided.

Furthermore, in this embodiment, a flat plate-like projecting portion 55 is provided so as to face the slot opening rectangular long side of the USB terminal slot 51 toward the rear in a substantially flat plate shape. The distance between the flat projections 55 is set so that the opposing surfaces of the flat projections 55 are close to or in contact with the side surfaces of the main unit 101 according to the thickness of the main unit 101 of the USB connection device 100. . Therefore, since the USB connection device 100 is also supported by the main body 101 by arranging the main body 101 between the flat protrusions 55, the USB connection device 100 can be attached more stably. Furthermore, since the side surfaces (left and right side surfaces when facing the pen tip side) are opened between the flat plate-like projecting portions 55, it is easy to grip the arc-shaped side surface 101b of the main body 101 of the USB connection device 100 described above. Thus, the operability of attaching / detaching the USB connection device 100 is further improved.
Note that the thickness of the main body 101 is usually greater than the thickness of the USB connection terminal 102, and there is no possibility of interference with the USB connection terminal 102.

  In the present invention, the operation unit 50 including the USB terminal slot 51 to which the USB connection device 100 is attached and the front portion including the inclined surface 5a for sliding the slide piece 11 in the front-rear direction are integrally configured as one component. Therefore, when the writing instrument 1 is assembled, it is easy to assemble, and the manufacturing cost can be reduced. Furthermore, since it can be formed by injection molding of an integral resin, it can also have a design. Furthermore, since the clip 6 is provided on the rotating cam member 5 (operation unit 50), there is an advantage that the rotating operation is easy. In particular, in the case of the opening / closing operation type clip 6 in which the clip 6 is supported by the pedestal 5b as in the present embodiment, the height is increased, so that the rotation operation becomes easier.

  As mentioned above, although the Example of this invention was described in detail, this invention is not limited to this, In the range which does not change the summary of this invention, it can change suitably.

  For example, only the operation unit 50 of the rotating cam member 5 may be provided at the rear end of a writing instrument on which only one writing core is mounted.

  The space 52 provided below the locking projection 51a is provided in the locking projection 51a on the side opposite to the clip 6. However, the space 52 may also be provided on the locking projection 51a on the clip 6 side. Only the side may be provided. However, by providing the space 52 only on the one side locking projection 51a, the hinge effect can be easily achieved.

  Furthermore, the space portion 52 may be a through hole without forming the wall portion 53. In this case, the optimum hinge effect is set by adjusting the thickness of the base 51a2. However, it may be difficult to set molding conditions due to problems such as sink marks during injection molding.

DESCRIPTION OF SYMBOLS 1 Writing implement 2 Shaft cylinder main body 2a Guide part 2a1 Divider part 3 Grip 4 Front port 5 Rotating cam member 5a Inclined surface 5b Base part 6 Clip 6a Support point part 7 Front shaft 8 Joint member 9 Ring member 10 Ball-point pen refill 11 Slide piece 11a Follower Portion 12 Coil Spring 13 Plate Spring 50 Operation Unit 51 USB Terminal Slot 51a Locking Protrusion 51a1 Inclined Side 51b Groove 52 Space 53 Wall 54 Partition Wall 55 Flat Projection 100 USB Connection Device 101 Main Body 101a Slot 102 USB Connection terminal 102a Locking hole

Claims (8)

A barrel,
A latch that is formed so that a semiconductor memory can be mounted and has a USB connection terminal, and the USB connection terminal is provided with a latch hole. The latch can be detachably engaged with the latch hole. A USB terminal slot having a convex portion, the USB connection terminal being inserted, and a rear end of the shaft cylinder;
Writing instrument characterized by having. The writing instrument according to claim 1, wherein a space portion is provided at a lower portion of the locking projection. 3. The writing instrument according to claim 2, wherein the locking projections are provided to face each other, and the space portion is provided only at a lower portion of one locking projection. The two locking projections are provided on the same plane, and a wall portion for partitioning the space portion is provided at a lower portion between the two locking projections. 3. Writing instrument according to 3. A plurality of writing cores provided in the shaft cylinder;
A slide piece provided at the rear end of the writing core;
A guide member for guiding the slide piece in the longitudinal direction of the shaft tube;
Biasing means for biasing the slide piece backward;
It is provided at the rear end of the shaft cylinder so as to be rotatable. The front part is housed inside the shaft cylinder, is in sliding contact with the slide piece, and can sequentially draw out the writing core through the slide piece by a turning operation. A rotating cam member having an operation portion provided with the USB terminal slot and a rear portion projecting from a rear end of the shaft tube;
The writing instrument according to any one of claims 1 to 4, wherein: The writing instrument according to claim 5, wherein a flat plate-like projecting portion is provided facing the operation portion of the rotating cam member toward the rear. The writing instrument according to claim 5 or 6, wherein a clip is provided on the operation portion of the rotating cam member. The writing instrument according to claim 1, wherein the USB connection device is attached.

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