JP6465746B2 - Fiber optic cord reel - Google Patents

Description

  The present invention relates to an optical fiber cord reel for processing an extra length of an optical fiber.

  As a structure of the optical fiber cord reel for processing the extra length of the optical fiber, a split-type structure, specifically, as shown in FIG. 16, an extra length processing member that can be used alone for extra length processing. A structure in which a circle-shaped reel is formed by connecting 30 is disclosed (Patent Document 1).

  In the above conventional structure, as shown in FIG. 17, a locking portion 31 is formed on one side of each surplus length processing member 30, and a locking groove 32 is formed on the other side. While being slid from either direction, the locking portion of one surplus length processing member and the locking groove portion of the other surplus length processing member are fitted together for connection.

  Further, as shown in FIGS. 18 and 19, as shown in FIGS. 18 and 19, the locking portion 31 and the locking groove portion 32 are configured so as to be slidable in any direction from above and below and not move up and down after the connection. The hook 33 is formed on the top.

  In such a structure, when the connection between the surplus length processing members 30 is released from the state of FIG. 19, it is necessary to bend the hooking portion 33 formed in the locking portion 31 and the locking groove portion 32. However, in the above-described conventional structure, the locking portion 31 that slides the surplus length processing member 30 and the hook portion 33 that couples the surplus length processing member 30 are integrated, and each surplus length processing member 30 is From the viewpoint of securing the strength, since it is configured by a member having low elasticity, any of the locking portion 31, the locking groove portion 32, and the hooking portion 33 is difficult to bend, and the connection between the surplus length processing members 30 is released. There was a problem that it was difficult to work.

  In addition, when the surplus length processing member 30 is configured by a member having high elasticity, the above-described problem can be avoided, but the viewpoint of the strength of the entire reel after connection and the connection at the connection portion between the surplus length processing members. From the viewpoint of strength, it is not preferable.

Japanese Patent No. 3970165

  The object of the present invention is to solve the above-mentioned problems, and in a split-type optical fiber cord reel configured by connecting a plurality of extra length processing members, the strength of the entire reel after connection and the connection strength at the connection location are increased. It is an object of the present invention to provide a technique capable of easily performing the operation of releasing the connection between the extra length processing members without sacrificing.

  In the present invention, as a means for solving the above-mentioned problems, in a split-type optical fiber cord reel configured by connecting a plurality of extra length processing members, each extra length processing member winds the optical fiber cord. A guide surface and a connecting portion that connects adjacent surplus length processing members to each other, a sliding portion that guides the connecting portion to a connecting position while sliding adjacent surplus length processing members to each other, and sliding after connection The structure which arrange | positions the lock | rock part which controls a movement away from each other was employ | adopted.

  The lock portion includes both an engaging portion having a protruding portion and an engaged portion having a recessed portion, as in the invention of claim 2, and the protruding portion is in the sliding direction of the slide portion. Preferably, the concave portion engages with a convex portion of an adjacent surplus length processing member to restrict the movement thereof, and the projection portion is provided at least as described in claim 3. It is preferable that two are formed so as to be arranged in parallel, and at least two of the depressions are formed so as to be arranged in parallel, and the at least two depressions are formed as in the invention of claim 4. One of the recess portions is formed with a first restricting portion for restricting movement toward one of the sliding directions of the slide portion, and the other recess portion has a sliding direction of the slide portion. Form a second restricting part that restricts movement toward the other It is preferable, as in the invention of claim 5, wherein, in the protrusions of the above, it is preferable to form the 誘込 portion of inducing projections into said recess.

  Preferably, the slide part includes both an engaging part having an engaging convex part and an engaged part having an engaging groove part.

  Preferably, the slide part and the lock part are formed on the inner peripheral side of the guide surface as in the seventh aspect of the invention.

  Furthermore, as in the invention according to claim 8, the upper and lower surfaces perpendicular to the guide surface of each extra length processing member are formed in a substantially fan shape, the surfaces perpendicular to these upper and lower surfaces, and the fan shape. Both of the slide part and the lock part are arranged on two surfaces including a straight line that forms a straight line, and one of these two surfaces is engaged with the engagement part of the lock part and the engaged part of the slide part. It is preferable to form a portion, and on the other hand, an engaged portion of the lock portion and an engaging portion of the slide portion are formed.

  In the present invention, in a split-type optical fiber cord reel configured by connecting a plurality of surplus length processing members, each surplus length processing member includes a guide surface for winding the optical fiber cord and adjacent surplus length processing members. The slide part that guides to the connection position while sliding adjacent surplus length processing members to each other and the lock part that regulates the sliding movement after the connection are separated from each other. Since the arrangement is adopted, the lock portion can be easily bent and the slide portion can be hardly bent. Thereby, the workability | operativity improvement of the operation | work which releases the connection between surplus length process members can be aimed at, without sacrificing the intensity | strength in the whole optical fiber cord reel after a connection, and the connection intensity | strength in a connection location.

  As in the invention of claim 2 to claim 4, the lock portion includes both an engaging portion having a protruding portion and an engaged portion having a hollow portion, and the protruding portion is a slide portion. It is formed perpendicular to the sliding direction, and this recess engages with a protrusion of an adjacent surplus length processing member to restrict its movement, and at least two of the protrusions are arranged in parallel. And at least two of the recesses are arranged in parallel, and one of the two recesses has one of the sliding directions of the slide part. A first restricting portion that restricts movement toward one side is formed, and a second restricting portion that restricts movement toward the other of the sliding directions of the slide portion is formed in the other recess portion. When connecting adjacent surplus length processing members, How to slide towards the bottom Inclusive, and can be in any of the methods to slide toward the fitted from below can respond, to improve the workability of the connection work.

  According to a fifth aspect of the present invention, the protrusion is engaged with the depression by forming a guiding portion for guiding the protrusion to the depression. And the workability of the connecting work can be further improved.

  According to the seventh aspect of the present invention, when the slide portion and the lock portion are formed on the inner peripheral side of the guide surface, when the extra length of the optical fiber is taken up on the guide surface, the optical fiber becomes a slide portion or a lock portion. Can be prevented.

  The upper and lower surfaces perpendicular to the guide surface of each extra length processing member are formed in a substantially fan shape as in the invention described in claim 8, and the fan shape is formed in a surface perpendicular to these upper and lower two surfaces. Both the slide part and the lock part are arranged on two surfaces including a straight line, and one of these two surfaces is provided with an engagement part of the lock part and an engaged part of the slide part. Since the engaging portion of the locking portion and the engaging portion of the sliding portion are formed on the other side, the engaging portion and the engaging portion of the locking portion and the sliding portion are alternately formed. Adjacent extra length processing members can be connected in a stable state.

It is the whole perspective view which looked at the optical fiber cord reel from the surface. It is the whole perspective view which looked at the optical fiber cord reel from the back. It is the whole perspective view which looked at the surplus length processing member from the surface. It is the whole perspective view which looked at the surplus length processing member from the back. It is a figure explaining the method of fitting one surplus length process members from the top, sliding it toward the bottom, and connecting surplus length process members. It is a principal part enlarged view of FIG. It is a figure explaining the method of fitting one surplus length process members from the bottom and sliding it upwards, and connecting surplus length process members. It is a principal part enlarged view of FIG. It is a figure explaining the state which engaged the surplus length process members. It is a figure explaining the state which engaged the surplus length storage members from different directions. It is the perspective view seen from the back surface of FIG. It is a whole perspective view which shows the state which stacked the optical fiber cord reel up and down. It is a whole perspective view which shows the state just before stacking an optical fiber cord reel up and down. It is a principal part enlarged view of the bottom face part of an optical fiber cord reel. It is a principal part enlarged view of the ceiling part of an optical fiber cord reel. It is a whole perspective view of the optical fiber cord reel which has a split type structure in a prior art. It is a whole perspective view of the surplus length process member which comprises the optical fiber cord reel of FIG. It is a vertical sectional view explaining the state just before connection of the surplus length processing member. It is a vertical sectional view explaining the state which connected the surplus length processing member.

  Preferred embodiments of the present invention are shown below. Hereinafter, in this specification, an optical fiber cord means an optical fiber, an optical cord, etc., and an optical fiber cord reel is suitable for an application in which the extra length of the optical fiber cord is wound up and processed. It is used.

  As shown in FIGS. 1 and 2, the optical fiber cord reel 1 according to the present embodiment has a split-type structure configured by connecting a plurality of extra length processing members 2. 3. As shown in FIG. 4, the guide surface 3 which consists of the curved surface which winds up an optical fiber cord, and the connection part 4 which connects adjacent surplus length process members are provided.

  Each surplus length processing member 2 includes a ceiling portion 5 and a bottom surface portion 6 so as to sandwich the guide surface 3 from above and below.

  As shown in FIG. 1, the outer end portion of the ceiling portion 5 is provided with a folded side 7 protruding downward, and the outer end portion of the bottom surface portion 6 is provided with a folded side 8 projected upward. ing. These folded sides 7 and 8 have a function of maintaining the optical fiber cord wound around the guide surface 3 in that state. In the present embodiment, the folding side 7 of the ceiling portion 5 and the folding side 8 of the bottom surface portion 6 are alternately arranged so as not to face each other. By adopting such an arrangement, the above-described function can be efficiently performed with the minimum number of folded sides 7 and 8. Moreover, the operation | work which winds an optical fiber cord and the operation | work which removes can be performed easily.

  Each extra length processing member 2 can also be used independently without being connected. As a structure for that purpose, on the back surface of the surplus length processing member 2, as shown in FIG. 3 and FIG. 4, mounting holes 9 for screwing each surplus length processing member 2 onto the substrate in which the optical fiber cord is accommodated. Is formed. In addition, it is also possible to form a press-fit portion on the back surface of the extra length processing member 2 instead of the attachment hole 9 and press-fit on the substrate for attachment. These attachment holes 9 and press-fitting portions are preferably formed on the inner peripheral side with respect to the guide surface 3 serving as the winding surface of the optical fiber cord when each extra length processing member 2 is connected to form a reel shape. .

  As shown in FIGS. 3 and 4, the connecting portion 4 that connects the adjacent surplus length processing members 2 to each other includes a slide portion 10 that guides the adjacent surplus length processing members 2 to the connecting position while sliding the surplus length processing members 2 to each other. Lock portions 11 for restricting the sliding movement after the connection are arranged apart from each other. For this reason, in order to form the lock part 11 and the slide part 10 independently, the lock part 11 is formed in a thin plate shape to make it easy to bend, and the connection between the surplus length processing members 2 can be easily released. The slide portion 10 is formed with a thickness to give strength at the connected portion. In addition, for example, the lock portion 11 for connecting the extra length processing members 2 to each other can be formed of a highly elastic member, and the slide portion 10 for restricting the movement of the extra length processing member 2 can be formed of a low elastic member. . Thereby, the workability | operativity improvement of the operation | work which releases the connection between surplus length process members can be aimed at, without sacrificing the intensity | strength in the optical fiber cord reel 1 whole after a connection, and the connection intensity | strength in a connection location.

  Further, the slide portion 10 and the lock portion 11 are arranged on the inner peripheral side with respect to the guide surface 3. For this reason, when the extra length storage members 2 are connected to each other, as shown in FIG. 1, the slide portion 10 and the lock portion 11 serving as the connection portion 4 are stored in a space surrounded by the inner periphery of the guide surface 3. Therefore, when the extra length of the optical fiber cord is wound around the guide surface 3, the optical fiber cord can be prevented from being caught by the slide portion 10 or the lock portion 11.

  As shown in FIGS. 3 and 4, the ceiling portion 5 and the bottom surface portion 6 of each extra length processing member 2 have a fan shape. An extended surface 6a extending on the inner periphery of the guide surface 3 is formed on the bottom surface portion 6, a lock portion 11 is disposed on the extended surface 6a, and a slide portion 10 formed over the ceiling portion 5 and the extended surface 6a is disposed. doing. Each of the slide portion 10 and the lock portion 11 of the extended surface 6a is disposed on one side portion 6b and the other side portion 6c on the surface including a straight line forming a fan shape, and one of these two surfaces is one side. The engagement portion 12 of the lock portion 11 and the engaged portion 13 of the slide portion 10 are formed in the portion 6b, and the engaged portion 14 of the lock portion 11 and the slide portion 10 are engaged in the other side portion 6c. A portion 15 is formed. Thus, since the engaging portions 12 and 15 and the engaged portions 13 and 14 of the lock portion 11 and the slide portion 10 are alternately formed, adjacent surplus length processing members 2 are connected in a stable state. be able to. Note that the mounting holes 9 and the press-fit portions that are mounted on the substrate described above are mounted on the extending surface 6a.

  In the engaged portion 13 of the slide portion 10, a substantially L-shaped (鉤 -shaped) engagement groove portion is formed from the ceiling portion 5 to the bottom surface portion 6 (extending surface 6 a). The portion 15 is formed with a substantially L-shaped (ridge-shaped) engagement convex portion extending from the ceiling portion 5 to the bottom surface portion 6 (extending surface 6a). At the time of connecting work, the workability of the connecting work is improved by guiding one engaging groove part and the other engaging convex part of adjacent surplus length processing members 2 to the connecting position while sliding them together. Can do.

  As shown in FIGS. 3 and 6, the lock portion 11 is formed in parallel with the slide portion 10 using a flat plate of an elastic member. The engaging portion 12 of the lock portion 11 is formed with a protrusion 16 formed perpendicular to the sliding direction of the slide portion, and the engaged portion 14 of the lock portion 11 is engaged with the protrusion 16. And the hollow part 17 which controls the movement is formed.

  The protrusion 16 and the recess 17 are each formed in parallel at least two.

  As shown in FIG. 6, of the two dents, one of the dents 17 is formed with a first regulation part 18 that regulates the upward movement of the slide part 10, and the other dent 17 has A second restricting portion 19 that restricts the downward movement of the slide portion 10 is formed. For this reason, when connecting the surplus length processing members 2 to each other, it is possible to correspond to either the method of sliding from the top to the bottom of the fitting and the method of sliding from the bottom to the top of the fitting. Workability can be improved.

  As shown in FIGS. 6 and 9, the protrusion 16 a that is locked to the first restricting portion 18 at the connecting position includes a locking surface 21 that is locked to the first restricting portion 18 at the connecting position, A lead-in portion 20 is formed that is formed by notching the lower portion of the protruding portion 16a obliquely downward. Further, the protrusion 16b that is locked to the second restricting portion 19 at the connecting position includes a locking surface 21 that is locked to the second restricting portion 19 at the connecting position, and an upper side of the protruding portion 16b obliquely upward. A lead-in part 22 formed by cutting out toward the side is formed. By adopting such a structure, it becomes easy to guide the protrusion 16 (16a, 16b) to the recessed portion 17, and the workability of the connecting work can be further improved. In the present embodiment, since the protrusion 16 is formed at the open end (upper end) of the lock portion 11, it is easy to bend the lock portion 11 and remove the protrusion 16 from the recess 17. Can be done.

  As shown in FIGS. 3 and 4, the engagement portion 13 of the slide portion 10 is formed with a substantially L-shaped (ridge-like) engagement groove portion extending from the ceiling portion 5 to the bottom surface portion 6. The engaging portion 15 of the slide portion 10 has a substantially L-shaped (ridge-shaped) engaging convex portion extending from the ceiling portion 5 to the bottom surface portion 6, whereas the protrusion of the lock portion 11. The part 16 is disposed in the vicinity of an intermediate position between the ceiling part 5 and the bottom part 6. For this reason, when connecting the adjacent surplus length processing members 2 to each other, a method of inserting one surplus length processing member 2 from above and sliding it downward (see FIGS. 5 to 8), and one surplus length processing member. In any case of the method of inserting 2 from the bottom and sliding upward (see FIGS. 10 and 11), prior to the engagement of the lock portions 11, the slide portions 10 (with one engagement groove portion and The other engaging convex part) is engaged, and the lock part 11 can be moved to the engaging position in a state in which the movement in the direction perpendicular to the sliding direction is restricted, and the surplus length processing members 2 are connected to each other. It is easy to do.

  When one extra length processing member 2 is fitted from above and is slid downward (see FIGS. 5 to 8), the engaging groove portion of the engaged portion 13 of one slide portion 10 is the other slide portion 10. Is inserted from above into the engaging projection of the engaging portion 15 and slides vertically downward (see FIGS. 5 and 6). In the present embodiment, among the protrusions 16 formed on the engaging portion 12 of the lock portion 11 of the extra length processing member 2 that is inserted from above and is slidingly moved downward, the lower portion is cut obliquely downward. The protruding portion 16a having the lead-in portion 20 formed so as to be in contact with the engaged portion 14 of the lock portion 11 of the other surplus length processing member 2 (see FIGS. 7 and 8). Subsequently, either the lock part 11 having the engaged part 14 or the lock part 11 having the engaging part 12 bends, and the protrusion 16a having the lead-in part 20 causes the engaged part 14 to move. The protrusion 16b having a guide portion 21 formed by getting over and moving on the surface of the engaged portion 14 while sliding to engage with the first restricting portion 18 and with the upper portion notched obliquely upward. Is engaged with the second restricting portion 19 (see FIG. 9). When it is desired to release these engagements, the end portion of the lock portion 11 having the recess portion 17 is bent, and the engagement portions 20 formed by notching each of the above engagements (the lower portion is inclined obliquely downward). Engagement of the protrusion 16a and the first restricting portion 18 and the engagement of the protrusion 16b and the second restricting portion 19 having the lead-in portion 22 formed by cutting the upper portion obliquely upward. Is released, at least one of the excess length processing members 2 is moved upward or downward to engage the protrusion 16a with the first restricting portion 18 and the protrusion 16b with the second restricting portion 19. Release.

  In addition, when one extra length processing member 2 is fitted from below and is slid upward (see FIGS. 10 and 11), the engaging groove portion of the engaged portion 13 of one slide portion 10 is the other groove portion. In this embodiment, which is inserted from below into the engaging convex part of the engaging part 15 of the slide part 10 and slides upward vertically, it is inserted from below and sliding upward. A protrusion 16b having a guide portion 22 formed by notching the upper portion obliquely upward is brought into contact with the engaged portion 14 of the lock portion 11 of the surplus length processing member 2 (see FIG. 11). Subsequently, the lock portion 11 having the engaged portion 14 or the lock portion 11 having the engaging portion 12 bends, and the protruding portion 16b having the lead-in portion 22 gets over the engaged portion 14 to be covered. A protrusion 16a having a guide portion 20 formed by sliding on the surface of the engaging portion 14 to engage with the second restricting portion 19 and having the lower portion cut obliquely downward. It engages with the restricting portion 18 (see FIG. 9). When it is desired to release these engagements, the end portion of the lock portion 11 having the recess portion 17 is bent to release each of the engagements. The protrusion 16a and the first restricting portion 18 and the protrusion 16b and the second restricting portion 19 are disengaged by moving downward.

  As shown in FIG. 12, the optical fiber cord reel 1 of this embodiment is used by stacking up and down. . As a structure for connecting the optical fiber cord reels 1 in a stacked state, engaging portions and engaged portions are formed on the ceiling portion 5 and the bottom surface portion 6 of the optical fiber cord reel 1.

  As shown in FIGS. 13 to 15, in the present embodiment, the bottom surface portion 6 is formed with a convex portion 23 protruding downward, that is, in the direction of the other cord reel as the engaging portion, and this engagement is formed on the ceiling portion 5. As an engaged portion that engages with the portion, a hole-shaped convex portion receiving portion 26 that can be engaged with the convex portion 23 is formed. Further, a hook-shaped restricting piece 24 is formed so as to protrude downward from the projecting portion 23 at a position adjacent to the projecting portion 23 of the bottom surface portion 6, and the restricting piece 24 can be inserted into the ceiling portion 5. A hole 25 is formed. Further, an inclined guiding portion 27 is formed in the direction of the convex portion receiving portion 26 of the convex portion 23. Similarly, an inclined lead-in portion 28 is also formed at the end of the hole 25 corresponding to the convex receiving portion 26. At least one invitation part is sufficient. Moreover, in this embodiment, although the engaging part was formed in the baseplate 6 and the to-be-engaged part was formed in the ceiling part 5, the reverse may be sufficient.

  The operation of stacking and connecting the optical fiber cord reels 1 is performed according to the following procedure. The restricting piece 24 and the convex portion 23 of the bottom surface portion 6 of one optical fiber cord reel 1 are inserted and fitted into the hole portion 25 of the ceiling portion 5 of the other optical fiber cord reel 1. Thereafter, one or the other cord reel is rotated in the circumferential direction, specifically, in the direction of the convex receiving portion 26. When rotated in the circumferential direction, the guide portion 27 of the convex portion 23 comes into contact with the guide portion 28 of the hole portion 25. Then, the convex portion 23 is engaged with the convex portion receiving portion 26 while getting over the guide portion 28. When engaged, the hook-shaped restricting piece 24 is engaged with and locked to the end edge of the hole 25 by being submerged in the lower surface of the ceiling portion 5, and the movement in the direction away is restricted. If the convex part 23 is moved in the direction opposite to the engaging direction of the convex part receiving part 26 and rotated, it can be easily disassembled.

  The optical fiber cord reel 1 is formed in a reel shape by connecting a plurality of surplus length processing members, and an engagement surface 50 is generated between adjacent surplus length processing members 2. In this embodiment, as shown in FIG. 12, the convex portion 23 of the bottom surface portion 6 of one optical fiber cord reel 1 and the convex portion receiving portion 26 of the ceiling portion 5 of the other optical fiber cord reel 1 are engaged. In this case, the engagement surfaces 50 are formed so as to be shifted so that the engagement surfaces 50 of the upper and lower surplus length processing members do not overlap. When the engagement surface 50 overlaps between the surplus length processing members 2, when force is applied from the direction of the ceiling portion 5 of the optical fiber cord reel 1 in a stacked state, the engagement surface 50. Since the force applied to the upper and lower optical fiber cord reels 1 is applied to the upper and lower optical fiber cord reels 1, the engagement between the surplus length processing members 2 is easily disengaged. By adopting an offset arrangement so as not to occur, even when a force applied to the engagement surface 50 is applied to the upper and lower optical fiber cord reels 1, it is possible to make it difficult to disengage the excess length processing members 2 from each other.

  In the present embodiment, the guide contacting the inner peripheral surface of the guide surface of the optical fiber cord reel 1 on the same surface on which the bottom surface portion 6, that is, the engaging portion is formed, so that the optical fiber cord reel 1 can be easily rotated. A piece 29 is formed. Thereby, the effect that alignment of engagement becomes easy is also acquired. By forming the guide piece 29 at a position that avoids the slide portion 10 formed from the ceiling portion 5 to the bottom surface portion 6, it is possible to restrict rotation beyond a certain level.

DESCRIPTION OF SYMBOLS 1 Optical fiber cord reel 2 Extra length processing member 3 Guide surface 4 Connection part 5 Ceiling part 6 Bottom part 6a Extension surface 6b One side part 6c Other side parts 7, 8 Folding side 9 Mounting hole 10 Slide part 11 Lock part 12 (Lock Engagement part 13 (of slide part 10) Engagement part 14 (of slide part 10) Engagement part 15 (of lock part 11) Engagement part 16 (of slide part 10) Projection part 17 Recessed part 18 First restriction Part 19 Second restriction part 20 Guide part 21 Locking surface 22 Guide part 23 Projection part 24 Protrusion part 24 Restriction piece 25 Hole part 26 Projection part receiving part 27 Guide part 28 Guide part 29 Guide piece 30 Extra length processing member 31 Locking portion 32 Locking groove portion 33 Hooking portion 50 Engagement surface

Claims (8)

A split-type optical fiber cord reel configured by connecting a plurality of extra length processing members,
Each surplus length processing member includes a guide surface for winding the optical fiber cord, and a connecting portion that connects adjacent surplus length processing members to each other,
A slide part that leads to the connection position while sliding the surplus length processing members adjacent to this connection part,
An optical fiber cord reel, wherein lock portions that restrict sliding movement after connection are arranged apart from each other. As said lock part, it has both an engaging part which has a projection part, and an engaged part which has a hollow part,
This protrusion is formed perpendicular to the sliding direction of the slide part,
2. The optical fiber cord reel according to claim 1, wherein the hollow portion engages with a protruding portion of an adjacent surplus length processing member to restrict its movement. And forming at least two of the protrusions in parallel,
3. The optical fiber cord reel according to claim 2, wherein at least two of the recesses are formed in parallel. Of the at least two indentations,
In one of the recesses, a first restricting part that restricts the movement toward one of the sliding directions of the slide part is formed,
4. The optical fiber cord reel according to claim 3, wherein a second restricting portion for restricting movement toward the other of the sliding directions of the slide portion is formed in the other recess portion.   5. The optical fiber cord reel according to claim 2, wherein a guide portion that guides the protrusion portion to the recess portion is formed in each of the protrusion portions.   2. The optical fiber cord reel according to claim 1, wherein the slide portion includes both an engaging portion having an engaging convex portion and an engaged portion having an engaging groove portion.   The optical fiber cord reel according to claim 1, wherein the slide portion and the lock portion are formed on an inner peripheral side of the guide surface. The upper and lower surfaces perpendicular to the guide surface of each extra length processing member are formed in a substantially fan shape,
Both the slide part and the lock part are arranged on two surfaces that are perpendicular to these two upper and lower surfaces and include a straight line that forms the fan shape,
Of these two aspects,
On one side, the engaging part of the lock part and the engaged part of the slide part are formed,
8. The optical fiber cord reel according to claim 1, wherein an engaged portion of the lock portion and an engaging portion of the slide portion are formed on the other side.

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