JP4298755B2 - Cable gripping device and electronic device - Google Patents

Description

  The present invention relates to a cable gripping device and an electronic device, and more particularly to a cable gripping device that grips a part of a cable and an electronic device that includes the cable gripping device and to which a cable is connected.

  Conventionally, as an example of an electronic device to which a cable is connected, for example, a signal conversion device to which an optical fiber as a cable is connected is known (see Patent Document 1). The signal converter has a configuration in which a main body including a control circuit is mounted on a cable storage box as a lower case for storing an optical fiber drawn from outside.

  Further, in the signal conversion device as described above, in order to fix the position of the optical fiber stored in the cable storage box, a cable gripping structure for fixing a part of the optical fiber to a predetermined position of the cable storage box (Cable gripping device) may be used. As such a cable gripping device, various structures have been conventionally proposed (for example, see Patent Document 2).

The cable gripping device disclosed in Patent Document 2 described above includes a case main body in which a cable passage having a tapered side wall is formed, a cover body covering the cable passage of the case main body, and a cable passage of the case main body. It consists of a cable gripping tool that is arranged inside and consists of two members for fixing with a cable in between. In the cable gripping device described above, the cable can be reliably fixed with a small number of man-hours.
JP 2003-202474 A JP 2003-348738 A

  The cable gripping device described above is composed of component parts such as a case main body, a cover body, and a cable gripping tool composed of two members as described above, and an operator handles these component parts in the actual work of fixing the cable. The workability was not good. In addition, electronic devices such as the signal conversion device described above are also required to be downsized, and a more compact cable gripping device is required.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a compact cable gripping device and electronic apparatus that can easily perform a cable fixing operation. That is.

The cable gripping device according to the present invention includes a base member and a fixing member. A groove for fixing the cable is formed in the base member. A fixing member is arrange | positioned inside a groove part and is for pinching | interposing and fixing a cable between the one side walls of a groove part. The other side wall facing the one side wall in the groove is formed so that the distance from the one side wall gradually increases from one end of the groove toward the other end. On the other hand, an uneven portion is formed on the side wall. In the fixing member, a concavo-convex portion is formed on the side surface facing the one side wall. The base member is formed with a guide portion for guiding the fixing member so that the fixing member slides from the other end side to the one end side along the other side wall. In the fixing member, a claw portion is formed on a side surface facing the other side wall. On the other side wall, an engaging portion that engages with the claw portion of the fixing member and restricts the movement of the fixing member to the other end side is formed. The guide portion is an opening formed in the bottom wall of the groove portion so as to extend along the other side wall. The fixing member has a convex portion that can be inserted into the opening. The opening extends from the end portion on the other end side of the groove portion to the end portion on the one end side, and the fixing member can be detached from the end portions on the other end side and the one end side. The width of the front end portion of the convex portion is larger than the width at the central portion in the direction from the other end side to the one end side in the opening. The top surface of the fixing member is exposed at the groove. The fixing member is arranged so that the cable can be fixed by sliding the fixing member while pressing the top surface of the fixing member after determining the position of the cable between the one side wall of the groove and the fixing member.

  In this case, the cable is arranged between the one side wall of the groove portion and the side surface where the uneven portion of the fixing member is formed, and the fixing member is slid toward one end inside the groove portion, thereby The cable can be held and fixed between the side walls. Further, the above-described cable gripping device has a small number of parts and a simple structure, so that the cable can be fixed easily. Further, since the number of parts is small, it is easy to reduce the size of the cable gripping device. Further, for a plurality of types of cables having different diameters, the distance between the fixing member and the one side wall changes depending on the sliding position of the fixing member. , Can be fixed in the same procedure using the same parts.

Also, once the fixed cable gripping device cables, after removal of the cable, after removal from the guide portion at the end of the fixed member one end side, mounting the fixing member again to the guide portion at the other end side Can do. That is, the cable gripping device according to the present invention can be used repeatedly.

In the cable gripping device, at the end of the other end side and one end side of the guide portion, it is preferable that the width of the opening is larger than the width of the tip portion of the convex portion of the fixing member. In this case, after inserting the convex part of the fixing member into the opening as the guide part at the end part of the guide part, when the fixing member is slid along the guide part, the central part of the guide part is fixed from the guide part. The member can be prevented from coming off.

  In the above cable gripping device, the concavo-convex portions respectively formed on the one side wall and the side surface of the fixing member may include a plurality of grooves extending in parallel from the bottom of the groove toward the top. In this case, the cable fixed between the fixing member and the one side wall can be easily removed along the extending direction of the groove (from the bottom to the top of the groove). For this reason, the cable gripping device can be easily reused. Moreover, since the uneven part includes the groove as described above, the cable gripped between the fixing member and the one side wall is displaced along the extending direction of the groove part (the extending direction of the cable disposed in the groove part). Can be prevented. For this reason, the cable can be reliably held in the extending direction of the cable.

  In the cable gripping device described above, when the fixing member slides along the guide portion, when the fixing member is pressed against the one side wall with a finger or the like, the engaging portion (for example, the nail portion of the fixing member and the other side wall) It may be set so that the engagement with the claw portion is disengaged (it may be so large that the engagement is disengaged). Thereby, when the cable is not disposed between the fixing member and the one side wall, the fixing member can be moved toward the one side wall by the amount of play. As a result, the engagement between the claw portion of the fixing member and the engaging portion of the other side wall can be released. In this state, the fixing member can be moved to the other end side. Therefore, the operator can move the fixing member to the other end side in order to correct the position of the fixing member without removing the fixing member from the guide portion. As a result, it is possible to improve workability when performing work such as resetting the position of the fixing member.

  In the cable gripping device, the top surface of the fixing member (the upper surface opposite to the bottom wall side of the groove) may be roughened. Thereby, since the friction coefficient of the top face of the fixing member is increased, workability such as when the operator slides the fixing member with a finger can be improved. Here, the roughening may be, for example, creating irregularities having a depth of about 0.1 to 1 mm and a pitch of about 0.1 to 1 mm. In addition, since it is more important that the coefficient of friction of the top surface in the direction in which the fixing member is slid along the guide portion is large, a wave extending in a direction perpendicular to the sliding direction is formed as a shape formed on the surface of the top surface. Concavities and convexities that are arranged side by side (extending in a direction perpendicular to the sliding direction and alternating concave and convex portions) may be formed.

  In the cable gripping device, when the cable is weak against stress like an optical fiber cable, it is desirable to absorb the stress with the fixing member or the base member or both. For example, the fixing member has a structure (for example, a spring structure) such that the surface facing the one side wall or the surface facing the other side wall can move in the direction toward the one side wall or the direction toward the other side wall. May be. Moreover, the hardness of the material which comprises a fixing member can be made lower than the hardness of the material which comprises a base member. In this case, the stress applied to the cable can be relaxed more on the fixed member side than on the base member side (that is, the stress can be absorbed by the fixed member).

  In the cable gripping device, the strength of the material constituting the fixing member may be lower than the strength of the material constituting the base member. In this case, when an external force is applied to the fixing member, the fixing member can be destroyed or detached from the guide portion before the base member is destroyed. Therefore, it is possible to prevent a problem that the base member is damaged by the fixing member in the operation of installing the fixing member on the guide portion of the base member. When the fixing member is damaged, the cable gripping device can be used again by replacing the fixing member.

  An electronic apparatus according to the present invention includes the cable gripping device. In this case, the cable can be reliably and easily fixed by the cable gripping device. In addition, the cable gripping device has only two parts and is easy to downsize, which is advantageous for downsizing of electronic devices.

  According to the present invention, it is possible to provide a cable gripping device and an electronic apparatus that have a relatively simple configuration, a small number of parts, and can be easily miniaturized.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated.

  FIG. 1 is a schematic perspective view showing a cable storage box according to the present invention. FIG. 2 is a schematic diagram showing an optical communication device 10 including the cable storage box shown in FIG. An embodiment of a cable storage box and an optical communication device according to the present invention will be described with reference to FIGS. 1 and 2.

  Referring to FIG. 1, a cable storage box 1 as a cable gripping device according to the present invention is a member constituting the optical communication device shown in FIG. 2, and an optical fiber 7 indicated by a dotted line is fixed to a side portion thereof. A grip portion 3 is formed for this purpose. The planar shape of the cable storage box 1 is substantially rectangular. The optical fiber 7 introduced into the cable storage box 1 from the grip portion 3 is passed through an annular cable insertion passage formed in the cable storage box 1, and the end thereof is connected to the circuit of the optical communication device. Connected to the connection. In the grip portion 3, a groove portion through which the optical fiber 7 is inserted is formed in the housing of the cable storage box 1. In the grip part 3, a part of the optical fiber 7 located in the grip part 3 is gripped in order to fix the position of the optical fiber 7. Specifically, the groove portion of the grip portion 3 includes a fixing side wall 5 formed in the casing of the cable storage box 1, a guide side wall 4 facing the fixing side wall 5, a fixing side wall 5 and a guide side wall. It is comprised by the bottom wall which connects the bottom part with the side wall 4. FIG. For the guide so that the distance between the guide side wall 4 and the fixing side wall 5 gradually decreases from the outlet side (inside of the cable storage box 1) toward the inlet side (outside of the cable storage box 1). The side wall 4 and the fixing side wall 5 are formed. The fixing member 6 is disposed inside the groove portion.

  Then, when the fixing member 6 slides from the outlet side to the inlet side of the grip portion 3, a part of the optical fiber 7 is sandwiched between the side surface of the fixing member 6 and the fixing side wall 5. In this way, the optical fiber 7 is fixed in the grip portion 3. The detailed configuration of the grip portion 3 will be described later.

  As shown in FIG. 2, the main body 11 of the optical communication device 10 is installed on the cable storage box 1. The end of the optical fiber 7 is connected to a connection portion to the circuit formed in the main body portion 11. Any method can be used as the connection method. For example, a method can be used in which a connector for connection is installed at the end of the optical fiber 7 and a connector portion into which the connector is inserted is formed in the main body portion 11.

  Next, the configuration of the grip portion 3 will be described in more detail. FIG. 3 is a schematic plan view of the grip portion of the cable storage box shown in FIG. 4 is a schematic cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a schematic perspective view of the fixing member shown in FIG. FIG. 6 is a schematic perspective view of the fixing member shown in FIG. 5 as viewed from the guide enlarged diameter side. FIG. 7 is a schematic side view of the fixing member shown in FIG. 5 as viewed from the positioning unit side. FIG. 8 is a schematic cross-sectional view taken along line VIII-VIII in FIG. FIG. 9 is a schematic diagram illustrating a bottom surface on which the guide enlarged diameter portion 37 of the fixing member illustrated in FIG. 5 is formed and three side surfaces adjacent to the bottom surface. FIG. 10 is a schematic plan view showing a groove defined by the guide side wall 4 and the fixing side wall 5 on which the fixing member is disposed. 11 is a schematic cross-sectional view taken along line XI-XI in FIG. FIG. 12 is a schematic back view as seen from the back side of the groove shown in FIG. With reference to FIGS. 3-12, the structure of the holding part of the cable storage box by this invention is demonstrated in detail.

  With reference to FIGS. 3 and 4, the grip portion 3 of the cable storage box 1 according to the present invention has a configuration in which a fixing member 6 is disposed between the guide side wall 4 and the fixing side wall 5 of the groove portion. . The distance between the guide side wall 4 and the fixing side wall 5 gradually increases from the inlet side (lower side in FIG. 3) to the outlet side (upper side in FIG. 3). That is, the direction of the surface of the guide side wall 4 facing the fixing side wall 5 is inclined (intersects) with respect to the surface of the fixing side wall 5. A guide hole 16 is formed along the guide side wall 4 in the bottom wall 15 connecting the bottoms of the guide side wall 4 and the fixing side wall 5.

  An insertion enlarged hole portion 21 and a removal enlarged hole portion 23 are formed at both ends of the guide hole 16, respectively. In other words, an insertion enlarged hole portion 21 having a diameter D1 larger than the width L1 of the guide portion 22 that is an intermediate portion of the guide hole is formed at the end portion on the outlet side of the guide hole 16. At the end of the guide hole 16 on the inlet side, a removal enlarged hole 23 having a diameter D1 larger than the width L1 of the intermediate portion of the guide hole 16 is formed. The planar shapes of the insertion enlarged hole portion 21 and the removal enlarged hole portion 23 are substantially circular. The planar shapes of the insertion enlarged hole portion 21 and the removal enlarged hole portion 23 may be similar to the planar shape of the guide enlarged diameter portion 37 of the fixing member 6 described later. That is, if the planar shape of the guide enlarged diameter portion 37 is another shape (for example, a rectangular shape), the insertion enlarged hole portion 21 and the removal enlarged hole portion are matched to the planar shape of the guide enlarged diameter portion 37. The planar shape of 23 can be changed as appropriate (for example, in a square shape).

  Further, an extension portion 24 having a width substantially the same as the width L1 of the guide portion 22 of the guide hole 16 is formed on the further inlet side of the detachable enlarged hole portion 23. The extension portion 24 is a linearly extending opening having substantially the same width as the guide portion 22 that is an intermediate portion of the guide hole 16. As will be described later, the extension 24 is a portion where the guide convex portion 38 of the fixing member 6 is located when the fixing member 6 is removed from the guide hole 16.

  An uneven portion 18 is formed on the side wall (inner peripheral side wall) of the guide side wall 4 facing the fixing member 6. On the guide side surface 35 that is the side surface facing the guide side wall 4 of the fixing member 6, a convex portion 40 (see FIGS. 7 and 8) is formed in the positioning portion 36. The concavo-convex shape portion 18 meshes with the convex portion 40 formed in the positioning portion 36 of the fixing member 6, so that the fixing member 6 is only from the outlet side of the grip portion 3 to the inlet side (direction along the arrow a). It moves and acts as a movement direction restricting member for preventing movement toward the exit side.

  In addition, a concavo-convex portion is also formed on the surface of the fixing side surface 30, which is the side surface facing the fixing side wall 5 of the fixing member 6. An uneven portion 19 is formed on the side wall surface of the fixing side wall 5 facing the guide side wall 4. The concavo-convex portions formed on the concavo-convex shape portion 19 and the fixing side surface 30 of the fixing member 6 are each formed to extend from the bottom wall 15 side toward the top surface side (upper side) of the fixing side wall 5. It consists of a groove part and a convex part. By being sandwiched between the concavo-convex shape portion 19 and the concavo-convex portion formed on the fixing side surface 30 of the fixing member 6, the movement of the optical fiber 7 in the direction indicated by the arrow b is restricted (fixed).

  As shown in FIG. 4, the guide portion 22 which is an intermediate portion of the guide hole 16 formed in the bottom wall 15 of the grip portion 3 has a relatively narrow neck portion 33 and a relatively wide width. And an enlarged hole portion 32. The width D1 of the enlarged hole 32 is larger than the width L1 of the neck 33. Here, the width D <b> 1 of the enlarged hole portion is the same as the diameter D <b> 1 of the insertion enlarged hole portion 21 and the removal enlarged hole portion 23 formed at both ends of the guide hole 16. The enlarged diameter portion 37 for guide of the fixing member 6 is fitted into the enlarged hole portion 32. Further, the fixing member side neck portion 41 of the fixing member 6 is disposed in the neck portion 33. In this way, the fixing member 6 can move along the guide hole 16 without detaching from the guide portion 22 of the guide hole 16.

  As shown in FIG. 5, a positioning portion 36 is formed on the guide side surface 35 of the fixing member 6. The guide side surface 35 is a side surface opposite to the fixing side surface 30 for holding the optical fiber 7 in the fixing member 6. On the bottom surfaces adjacent to the guide side surface 35 and the fixing side surface 30, as shown in FIG. 6, a guide enlarged diameter portion 37 and a guide convex portion 38 for insertion into the guide hole 16 are formed. .

  The width of the guide convex portion 38 is smaller than the width L1 of the guide portion 22 of the guide hole 16 shown in FIG. Further, the guide enlarged diameter portion 37 and the bottom surface of the fixing member 6 are connected by a fixing member side neck portion 41 (see FIG. 7). The width of the fixing member side neck portion 41 is the same as the width t (see FIG. 9) of the guide convex portion 38. That is, the diameter of the guide enlarged diameter portion 37 is larger than the width of the fixed member side neck portion 41. Further, the diameter of the guide enlarged diameter portion 37 of the fixing member 6 is set so that the insertion enlarged hole portion 21 and the removal enlarged hole portion 21 can be inserted into the insertion enlarged hole portion 21 and the removal enlarged hole portion 23 of the guide hole 16. It is set smaller than the diameter D1 of the enlarged hole 23. The width of the fixing member side neck portion 41 is also set smaller than the width L1 of the guide portion 22 of the guide hole 16.

  The positioning portion 36 is formed on the guide side surface 35 of the fixing member 6 as described above. As shown in FIG. 7, the positioning portion 36 has notches (slits) formed on both sides thereof, and a space is formed on the inner peripheral side thereof as shown in FIG. For this reason, the positioning part 36 can be elastically deformed toward the inner peripheral side of the fixing member 6. A convex portion 40 is formed on the surface of the positioning portion 36 (the surface facing the guide side wall 4 when the fixing member 6 is disposed in the groove portion). As shown in FIG. 8, the convex portion 40 may be formed in a plurality of two or three or more. As shown in FIG. 3, the convex portion 40 is formed on the guide side wall 4 when the fixing member 6 is moved from the outlet side to the inlet side of the grip portion 3 along the guide hole 16 as indicated by an arrow a. The concave and convex portions 18 are engaged with the concave portions. As a result, the fixing member 6 can be prevented from sliding (reversing) toward the outlet side of the grip portion 3. In addition, the cross-sectional shape of the convex part which forms the uneven | corrugated shaped part 18 of the side wall 4 for guides (the shape of the convex part from the direction shown in FIG. 3) has a side surface facing the inlet side and a side surface facing the outlet side. Have. The crossing angle (for example, approximately 90 °) of the extending direction of the side surface facing the inlet side with respect to the extending direction of the guide side wall 4 is equal to the extending direction of the side surface facing the outlet side with respect to the extending direction of the guide side wall 4. It is larger than the crossing angle (for example, approximately 30 °). Further, as shown in FIGS. 8 and 9, the convex portion 40 formed in the positioning portion 36 of the fixing member 6 has a side surface facing the outlet side and the inlet side when arranged in the groove portion as shown in FIG. And has a cross-sectional shape having a side surface facing the surface. The intersection angle (for example, approximately 90 °) of the side surface facing the outlet side of the convex portion 40 with respect to the guide side surface 35 is the intersection angle (for example, approximately 30) of the side surface facing the inlet side of the convex portion 40 with respect to the guide side surface 35. °) is larger. Then, the fixing member 6 moves backward to the outlet side when the side surface facing the outlet side of the convex portion 40 of the fixing member and the side surface facing the inlet side of the concavo-convex shape portion 18 of the guide side wall 4 come into contact. Is reliably prevented.

  FIG. 9 is a schematic diagram showing the bottom surface of the fixing member 6 and the three side surfaces adjacent to the bottom surface as described above. Specifically, the bottom center portion of the fixing member 6 on which the guide convex portion 38 and the guide enlarged diameter portion 37 are formed is shown in the upper center portion of FIG. The width t of the guide convex portion 38 is smaller than the width L1 of the guide portion 22 of the guide hole 16 described above. Further, the diameter D2 of the guide enlarged diameter portion 37 is smaller than the diameter D1 of the insertion enlarged hole portion 21 and the removal enlarged hole portion 23 as described above. Further, the extending direction of the guide convex portion 38 is substantially parallel to the extending direction of the guide side surface 35 on which the positioning portion 36 is formed. This corresponds to the extension direction of the guide portion 22 of the guide hole 16 shown in FIG. 3 and the extension direction of the guide side wall 4 being substantially parallel to each other.

  9 is a schematic side view of the fixing member 6 as viewed from the distal end side of the positioning portion 36. 9 is a schematic side view of the fixing member 6 viewed from the base side of the positioning portion 36. The lower part of FIG. 9 is a schematic view of the fixing member 6 viewed from the fixing side face 30 side. As can be seen from FIG. 9, the planar shape of the bottom surface (and top surface) of the fixing member 6 is substantially trapezoidal, and the planar shape of each side surface adjacent to the bottom surface is substantially rectangular. The inclination (intersection) angle of the extending direction of the guide side surface 35 with respect to the extending direction of the fixing side surface 30 of the fixing member 6 is substantially fixed to the inner peripheral side surface of the guide side wall 4 shown in FIG. This is the same as the inclination (intersection) angle in the extending direction of the inner peripheral side wall of the side wall 5.

  In the groove portion composed of the guide side wall 4, the fixing side wall 5 and the bottom wall 15 constituting the grip portion 3, the bottom wall 15 has a direction along the inner peripheral surface of the guide side wall 4 as shown in FIGS. 10 to 12. An extending guide hole 16 is formed. In the guide hole 16, as described above, the insertion enlarged hole portion 21, the guide portion 22, the removal enlarged hole portion 23, and the extension portion 24 are formed in order from the outlet side of the grip portion 3 (upper side in FIG. 10). . As shown in FIG. 11, the cross-sectional shape of the guide portion 22 of the guide hole 16 is connected to the neck portion 33 located on the upper surface side of the bottom wall 15 and the neck portion 33, and is close to the outer peripheral side surface of the bottom wall 15. It consists of the enlarged hole part 32 located in the side. As shown in FIG. 12, the width of the enlarged hole portion 32 is the same as the diameter of the enlarged enlarged hole portion 21 for insertion and the enlarged enlarged hole portion 23 for removal. Further, the width of the neck portion 33 is substantially the same as the width of the extension portion 24. With such a structure, the guide enlarged diameter portion 37 of the fixing member 6 is inserted into the guide hole 16 from the insertion enlarged hole portion 21, and the fixing member 6 is inserted into the inlet side of the grip portion 3 (removal enlarged hole portion). When the slide portion is slid to the side where 23 is formed, the guide enlarged diameter portion 37 of the fixing member 6 is inserted into the enlarged hole portion 32. As a result, the fixing member 6 can slide along the guide hole 16 in the bottom wall 15 without leaving the bottom wall 15 of the grip portion 3.

  Next, the operation direction of the grip part 3 of the cable storage box 1 described above will be described with reference to FIGS. FIG. 13 is a schematic plan view for explaining an operation method of the grip portion 3. FIG. 14 is a schematic back view showing a state of the back side of the gripping portion shown in FIG. FIG. 15 is another schematic plan view for explaining the operation of the grip portion of the cable storage box according to the present invention. FIG. 16 is a schematic back view illustrating a state of the back side of the grip portion illustrated in FIG. 15.

  First, the process of installing the fixing member 6 inside the groove defined by the guide side wall 4, the fixing side wall 5 and the bottom wall 15 of the grip portion 3 will be described. At this time, as shown in FIGS. 13 and 14, the guide enlarged diameter portion 37 of the fixing member 6 is inserted into the insertion enlarged hole portion 21 of the guide hole 16 formed in the bottom wall 15. At this time, the fixing member 6 is arranged so that the guide side surface 35 of the fixing member 6 faces the guide side wall 4. Further, the guide convex portion 38 formed on the bottom surface of the fixing member 6 is inserted into the neck portion 33 of the guide hole 16. Then, the fixing member 6 is slid from the state shown in FIGS. 13 and 14 in the direction indicated by the arrow in FIG. 13 (that is, along the extending direction of the guide portion 22). As a result, the guide enlarged diameter portion 37 of the fixed member 6 is fitted into the enlarged hole portion 32 of the guide portion 22 as shown in FIG. As a result, the fixing member 6 is prevented from falling off the bottom wall 15 of the grip portion 3.

  Then, as shown in FIG. 13, the optical fiber 7 is disposed between the fixing side wall 5 and the fixing member 6 along the fixing side wall 5. The optical fiber 7 may be arranged in advance before the above-described process. In this state, when the fixing member 6 is slid in the direction indicated by the arrow in FIG. 13, the optical fiber is interposed between the fixing side surface 30 of the fixing member 6 and the concavo-convex shape portion 19 of the fixing side wall 5 as shown in FIG. 3. 7 can be fixed. Further, since the guide side wall 4 is inclined with respect to the fixing side wall 5, the fixing side surface 30 and the fixing side wall 5 are changed depending on the position where the fixing member 6 reaches by sliding the fixing member 6. The distance between can be changed arbitrarily. For this reason, the optical fiber 7 having an arbitrary thickness can be fixed in the grip portion 3.

  Next, a process for removing the optical fiber 7 from the grip portion 3 will be described. When the optical fiber 7 is removed from the grip portion 3, the extending direction of the groove of the concavo-convex shape portion 19 formed on the fixing side wall 5 (the direction from the bottom wall 15 side to the top surface side of the fixing side wall 5). ). In this way, the optical fiber 7 can be moved relatively easily in the extending direction of the groove of the concavo-convex shape portion 19, so that the optical fiber 7 can be easily detached from the grip portion 3. Then, when removing the fixing member 6 from the grip portion 3, the fixing member 6 is first slid to the most entrance side of the guide hole 16 as shown in FIGS. 15 and 16. At this time, the guide enlarged diameter portion 37 of the fixing member 6 reaches the removal enlarged hole portion 23 of the guide hole 16. Further, the guide convex portion 38 of the fixing member 6 reaches the extension portion 24 of the guide hole 16. In this state, the fixing member 6 is removed from the bottom wall of the grip portion 3 so that the guide enlarged diameter portion 37 of the fixing member 6 is pulled out from the removal enlarged hole portion 23 of the guide hole 16. In this way, the fixing member 6 can be removed from the groove portion of the grip portion 3. The removed fixing member 6 can be fitted again into the guide hole 16 from the insertion enlarged hole portion 21 of the guide hole 16. For this reason, the optical fiber 7 can be fixed again with respect to the grip portion 3 by using the procedure described above.

  3 to 16, the position of the upper surface of the fixing member 6 and the position of the top surface of the guide side wall 4 are substantially the same as shown in FIG. 4 (the bottom surface of the fixing member 6). And the distance from the bottom wall of the groove portion to the top surface of the guide side wall 4 is substantially the same). However, as shown in FIG. 17, the height H <b> 1 from the bottom surface to the top surface of the fixing member 6 may be smaller than the height H <b> 2 from the bottom wall to the top surface of the guide side wall 4. Here, FIG. 17 is a schematic cross-sectional view showing a first modification of the grip portion of the cable storage box according to the present invention. FIG. 17 corresponds to FIG. In this case, the fixing member 6 is in a state of being buried in a groove portion constituted by the guide side wall 4 fixing side wall 5 and the bottom wall. For this reason, the occurrence of an accident in which another member comes into contact with the fixing member 6 and the optical fiber 7 (see FIG. 3) held between the fixing member 6 and the fixing side wall 5 is accidentally detached from the grip portion 3. Can be prevented.

  Further, as shown in FIG. 18, the height H1 from the bottom surface of the fixing member 6 to the upper surface may be larger than the height H2 from the bottom surface to the top surface of the guide side wall 4. Here, FIG. 18 is a schematic cross-sectional view showing a second modification of the grip portion of the cable storage box according to the present invention. FIG. 18 corresponds to FIG. As shown in FIG. 18, when the upper surface of the fixing member 6 is positioned above the top surface of the guide side wall 4, when the fixing member 6 is slid from the outlet side to the inlet side in the grip portion 3. There is an advantage that the operator can easily operate the fixing member 6.

  Although there is a part that overlaps with the above description, if the characteristic configuration of the present invention is summarized, the grip portion 3 as the cable gripping device according to the present invention has a housing of the cable storage box 1 as a base member. A body and a fixing member 6. The cable storage box 1 is formed with a groove for fixing the optical fiber 7 as a cable. The fixing member 6 is disposed inside the groove portion, and is for fixing the optical fiber 7 between the fixing side wall 5 as one side wall of the groove portion. The guide side wall 4 as the other side wall facing the fixing side wall 5 in the groove portion gradually increases in distance from the fixing side wall 5 from one end (inlet side) to the other end (outlet side) of the groove portion. It is formed to become. The fixing side wall 5 is formed with an uneven portion 19 as an uneven portion. In the fixing member 6, a concavo-convex portion is formed on a fixing side surface 30 as a side surface facing the fixing side wall 5. A guide hole 16 as a guide portion for guiding the fixing member 6 so that the fixing member 6 slides from the outlet side to the inlet side along the guide side wall 4 is formed in the bottom wall of the groove portion of the cable storage box 1 as the base member. Is formed. In the fixing member 6, a convex portion 40 as a claw portion is formed on the side surface facing the guide side wall 4. On the guide side wall 4, an uneven portion 18 is formed as an engaging portion that engages with the convex portion 40 of the fixing member 6 and restricts the movement of the fixing member 6 toward the outlet side.

  In this way, the distance between the fixing member 6 and the fixing side wall 5 is gradually narrowed by sliding the fixing member 6 from the outlet side to the inlet side inside the groove. Therefore, the fixing member 6 is slid as described above by disposing the optical fiber 7 between the fixing side wall 5 of the groove portion and the fixing side surface 30 on which the concave and convex portions of the fixing member 6 are formed in advance. The optical fiber 7 can be held and fixed between 6 and the fixing side wall 5. Further, since the above-described cable gripping device is constituted by two members, that is, the casing of the cable storage box 1 and the fixing member 6, the number of parts is small and the structure is simple, and the optical fiber 7 is fixed in the gripping portion 3. Work can be done easily. Further, since the number of parts is small, it is easy to reduce the size of the grip portion 3.

  Furthermore, since the distance between the fixing member 6 and the fixing side wall 5 also changes depending on the sliding position of the fixing member 6 for the plurality of optical fibers 7 having different diameters, the plurality of types of optical fibers 7 according to the present invention. In the holding part 3, it can fix in the same procedure, without changing components in particular.

  In the grip portion 3, the guide portion may extend from the end portion on the other end side of the groove portion to the end portion on the one end side. The guide hole 16 may be capable of attaching and detaching the fixing member 6 at each end of the outlet side and the inlet side. In this case, once the optical fiber 7 is removed from the grip portion 3 to which the optical fiber 7 has been fixed, the fixing member 6 can be removed from the guide hole 16 at the end on the inlet side. Further, the fixing member 6 can be mounted again in the guide hole 16 on the outlet side thereafter. That is, the grip portion 3 according to the present invention can be used repeatedly.

  In the grip portion 3, the guide hole 16 is an opening formed in the bottom wall 15 of the groove portion so as to extend along the guide side wall 4. The fixed member 6 is formed with a guide enlarged diameter portion 37 and a fixed member side neck portion 41 as convex portions that can be inserted into the opening. The width D2 of the tip of the convex portion (the enlarged diameter portion for guide 37) is larger than the width L1 of the opening in the central portion (guide portion 22) of the guide hole 16. In addition, the width of the opening (the diameter D1 of the insertion enlarged hole portion 21 and the removal enlarged hole portion 23) at the outlet side and the inlet side end of the guide hole 16 is the tip of the convex portion of the fixing member 6 (guide). It is larger than the width D2 of the expanded diameter portion 37). In this case, when the guide enlarged diameter portion 37 of the fixing member 6 is inserted into the insertion enlarged hole portion 21 of the guide hole 16 at the end portion of the guide hole 16, the fixing member 6 is slid along the guide hole 16. Further, it is possible to prevent the fixing member 6 from being detached from the guide portion 22 of the guide hole 16. For this reason, it is possible to prevent the fixing member 6 from dropping from the groove portion of the grip portion 3 in the fixing operation of the grip portion 3 of the optical fiber 7.

  In the grip portion 3, the concavo-convex shape portion 19 and the concavo-convex portion formed on the fixing side wall 5 and the fixing side surface 30 of the fixing member 6, respectively, from the bottom (bottom wall 15 side) of the groove to the upper portion (of the fixing side wall 5 A plurality of grooves or linear protrusions extending in parallel with each other toward the top surface side may be included. In this way, when the optical fiber 7 is removed from the grip portion 3, the optical fiber 7 fixed between the fixing member 6 and the fixing side wall 5 is placed along the extending direction of the plurality of grooves (in the groove portion). It can be easily removed (from the bottom wall 15 side to the top). For this reason, the grip part 3 can be easily reused. In addition, since the concavo-convex portion formed on the concavo-convex shape portion 19 and the fixing side surface 30 of the fixing member 6 includes the groove or the convex portion as described above, the light gripped between the fixing member 6 and the fixing side wall 5. The fiber 7 can be prevented from shifting along the extending direction of the optical fiber 7. For this reason, the optical fiber 7 can be reliably held in the extending direction of the optical fiber 7.

  In the grip portion 3, when the fixing member 6 slides along the guide hole 16, the play as a claw portion of the fixing member 6 is pushed when the fixing member 6 is pushed toward the fixing side wall 5 with a finger or the like. You may make it large to such an extent that engagement of the part 40 and the uneven | corrugated shaped part 18 of the side wall 4 for guides disengages. Thereby, when the optical fiber 7 is not disposed between the fixing member 6 and the fixing side wall 5, the fixing member 6 can be moved toward the fixing side wall 5 by the amount of play. As a result, the engagement between the convex portion 40 of the fixing member 6 and the concave-convex shape portion 18 of the guide side wall 4 can be released. In this state, the fixing member 6 can be moved to the outlet side. Therefore, the operator can move the fixing member 6 to the outlet side in order to correct the position of the fixing member 6 without removing the fixing member 6 from the guide hole 16. As a result, it is possible to improve the workability when performing the work of resetting the position of the fixing member 6.

  Further, in the grip portion 3, the top surface of the fixing member 6 (upper surface on the opposite side to the bottom wall 15 side of the groove portion) may be roughened. Thereby, since the friction coefficient of the top surface of the fixing member 6 becomes large, workability | operativity, such as when an operator slides the fixing member 6 with a finger, can be improved. Here, it is conceivable that the roughening is to form a linear uneven shape having a depth of 0.1 mm to 1 mm and a pitch of 0.1 mm to 1 mm, for example. Further, since it is more important that the coefficient of friction of the top surface in the direction in which the fixing member 6 is slid along the guide hole 16 is large, the shape formed on the surface of the top surface is the extending direction of the guide hole 16. Concavities and convexities (waves extending in the direction perpendicular to the sliding direction, which is the direction in which the guide hole 16 extends), and concave and convex portions alternately arranged may be formed. Further, in order to improve workability when the fixing member 6 is pressed toward the fixing side wall 5, convex portions arranged in a matrix or lattice-like grooves may be formed on the top surface of the fixing member 6.

  Further, when holding the cable that is weak in stress like the optical fiber 7 in the grip portion 3, it is desirable to absorb the stress in the fixing member 6, the housing of the cable storage box 1, or both. For example, in the fixing member 6, the portion including the surface facing the fixing side wall 5 or the portion including the surface facing the guide side wall 4 is directed toward the fixing side wall 5 or toward the guide side wall 4, respectively. A movable structure (for example, a spring structure such as the positioning portion 36 shown in FIG. 5) may be provided. In addition, when the material of the fixing member 6 is a material having a lower hardness than the material of the housing of the cable storage box 1, stress can be absorbed by the fixing member 6. In addition, as an index of hardness, for example, Rockwell hardness (standard of measurement method: ASTM D785) can be used.

  In the grip part 3, as shown in FIG. 4, the position of the top face of the guide side wall 4 of the groove part and the position of the top face of the fixing member 6 installed inside the groove part may be the same. In the grip portion 3, as shown in FIG. 17, the distance H2 from the bottom surface of the groove portion (the inner peripheral surface of the bottom wall 15) to the top surface of the guide side wall 4 is from the bottom surface of the groove portion to the inside of the groove portion. It may be larger than the distance H1 to the top surface of the fixed member 6 installed. In this case, it is possible to reduce the possibility that the operator accidentally touches the fixing member 6 in a state where the fixing member 6 is disposed inside the groove portion. Further, in the grip portion 3, as shown in FIG. 18, the distance H2 from the bottom surface of the groove portion to the top surface of the guide side wall 4 of the groove portion is such that the fixing member 6 installed inside the groove portion from the bottom surface of the groove portion. It may be smaller than the distance H1 to the top surface. In this case, since the upper part including the top surface of the fixing member 6 disposed inside the groove portion protrudes from the upper part of the guide side wall 4, the workability of the operation of sliding the fixing member 6 can be improved. it can.

  Further, in the grip portion 3, the strength of the material constituting the fixing member 6 is lower than the strength of the material constituting the casing of the cable storage box 1. In this case, it is possible to prevent the casing of the cable storage box 1 from being damaged by the fixing member 6 in the operation of installing the fixing member 6 in the guide hole 16. If a problem occurs in which the fixing member 6 is partially damaged (for example, it is locally recessed or the guide enlarged diameter portion 37 can be removed from the fixing member 6), the above-described gripping portion can be obtained by replacing the fixing member 6. 3 can be used again. In addition, as an index of strength, for example, impact strength measured using a plastic-Izod impact strength test method (JIS K7110, ISO 180) can be used.

  As an example of the material constituting the grip portion 3 described above, as the material of the fixing member 6, for example, polyamide (nylon) (PA), polyacetal (POM), or the like can be used. Moreover, as a material for the housing of the cable storage box 1, polycarbonate (PC), ABS resin (ABS), polypropylene (PP), polystyrene (PS), an alloy of ABS and PC (ABS + PC), or the like can be used.

  An optical communication device 10 as an electronic apparatus according to the present invention includes a grip portion 3 as the cable gripping device. In this case, the optical fiber 7 as a cable can be reliably and easily fixed by the grip portion 3. Further, since the grip portion 3 has only two parts and can be easily downsized, it is advantageous for downsizing the optical communication device 10.

  Further, in the above-described gripping portion 3, as shown in FIG. 3, the extending direction of the fixing side surface 30 of the fixing member 6 and the extending direction of the fixing side wall 5 are substantially parallel to each other. The directions may cross each other. Further, the fixing side surface 30 of the fixing member 6 may be flat as shown in FIG. 3, but may have another shape (for example, a curved surface that protrudes toward the fixing side wall 5). Further, the unevenness of the uneven shape portion 19 of the fixing side wall 5 and the unevenness of the fixing side surface 30 of the fixing member 6 can be any shape.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The cable gripping device according to the present invention can be used as a structure for fixing an optical fiber particularly in an optical communication device, but can be used as a structure for fixing any other cable.

It is a perspective schematic diagram which shows the cable storage box according to this invention. It is a schematic diagram which shows the optical communication apparatus 10 provided with the cable storage box shown in FIG. It is a plane schematic diagram of the holding part of the cable storage box shown in FIG. It is a cross-sectional schematic diagram in line segment IV-IV of FIG. FIG. 4 is a schematic perspective view of the fixing member shown in FIG. 3. It is the isometric view schematic diagram which looked at the fixing member shown in FIG. 5 from the enlarged diameter part for guides. It is the side surface schematic diagram which looked at the fixing member shown in FIG. 5 from the positioning part side. It is a cross-sectional schematic diagram in line segment VIII-VIII of FIG. FIG. 6 is a schematic diagram illustrating a bottom surface on which a guide enlarged diameter portion of the fixing member illustrated in FIG. 5 is formed and three side surfaces adjacent to the bottom surface. It is a plane schematic diagram which shows the groove part prescribed | regulated by the side wall for guides in which a fixing member is arrange | positioned, and the side wall for fixing. It is a cross-sectional schematic diagram in line segment XI-XI of FIG. It is the back surface schematic diagram seen from the back surface side of the groove part shown in FIG. It is a plane schematic diagram for demonstrating the operating method of a holding part. It is a back surface schematic diagram which shows the state by the side of the back surface of the holding part shown in FIG. It is another plane schematic diagram for demonstrating operation | movement of the holding part of the cable storage box by this invention. It is a back surface schematic diagram which shows the state by the side of the back surface of the holding part shown in FIG. It is a cross-sectional schematic diagram which shows the 1st modification of the holding part of the cable storage box by this invention. It is a cross-sectional schematic diagram which shows the 2nd modification of the holding part of the cable storage box by this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Cable storage box, 3 holding part, 4 guide side wall, 5 fixing side wall, 6 fixing member, 7 optical fiber, 10 optical communication apparatus, 11 main-body part, 15 bottom wall, 16 guide hole, 18, 19 uneven | corrugated shaped part , 21 Insertion enlarged hole part, 22 guide part, 23 removal enlarged hole part, 24 extension part, 30 fixing side face, 32 enlarged hole part, 33 neck part, 35 guide side face, 36 positioning part, 37 guide enlargement part Diameter part, 38 convex part for guide, 40 convex part, 41 fixing member side neck part.

Claims (7)

A base member formed with a groove for fixing the cable;
A fixing member that is disposed inside the groove portion and is fixed by sandwiching the cable between one side wall of the groove portion,
The other side wall facing the one side wall in the groove is formed such that the distance from the one side wall gradually increases from one end to the other end of the groove,
An uneven portion is formed on the one side wall,
In the fixing member, a concavo-convex portion is formed on a side surface facing the one side wall,
The base member is formed with a guide portion for guiding the fixing member so that the fixing member slides from the other end side to the one end side along the other side wall.
In the fixing member, a claw portion is formed on a side surface facing the other side wall,
The other side wall is formed with an engaging portion that engages with the claw portion of the fixing member and restricts movement of the fixing member to the other end side,
The guide part is an opening formed on the bottom wall of the groove part so as to extend along the other side wall;
The fixing member has a convex portion that can be inserted into the opening,
The opening extends from an end portion on the other end side of the groove portion to an end portion on the one end side, and the fixing member can be attached to and detached from each end portion on the other end side and the one end side. Yes,
The width of the tip of the convex portion is larger than the width at the center in the direction from the other end side to the one end side in the opening,
The top surface of the fixing member is exposed from the groove,
After fixing the position of the cable between the one side wall of the groove and the fixing member, the fixing member slides the fixing member while pressing the top surface of the fixing member to fix the cable. A cable gripping device arranged so that it can.   The cable gripping device according to claim 1, wherein the concavo-convex portions respectively formed on the one side wall and the side surface of the fixing member include a plurality of grooves extending in parallel from the bottom to the top of the groove.   When the fixing member slides along the guide portion, the engagement between the claw portion of the fixing member and the engaging portion of the other side wall when the fixing member is pressed toward the one side wall side. The cable gripping device according to claim 1, wherein the cable gripping device is set to be detached.   The cable gripping device according to claim 1, wherein the top surface of the fixing member is roughened.   The hardness of the material constituting the fixing member is lower than the hardness of the material constituting the base member, and stress applied to the cable can be more relaxed on the fixing member side than on the base member side. The cable gripping device according to any one of 1 to 4.   The strength of the material constituting the fixing member is lower than the strength of the material constituting the base member. When an external force is applied to the fixing member, the fixing member is broken before the base member is destroyed. The cable gripping device according to any one of claims 1 to 5, wherein the cable gripping device is broken or detached from the guide portion.   An electronic device comprising the cable gripping device according to claim 1.

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