JP6508984B2 - Flanged core - Google Patents

Description

  The present invention relates to a flanged core used for winding and delivering a tape, a film, a linear body and the like.

  A flanged core having flanges attached to both ends of a cylindrical core is used for winding and delivering wound products such as tapes, films, and linear bodies. As the flanged winding core, there is a flanged winding core configured to be detachably attachable to both ends of the cylindrical core so as to facilitate storage and transportation in a state where the wound object is not wound. .

  Such a flanged core includes a core and a pair of ring-shaped flanges detachably attached to both ends of the core, and the both ends of the core are fitted with the inner peripheral edge of the flange A connection end portion is formed by cutting out the outer peripheral portion, and engaged with a first surface made of either the connection end portion of the core or the radially opposite surface of the inner peripheral edge portion of the flange When the inner peripheral edge of the flange is fitted to the connecting end of the core on the second surface formed of a plurality of convexes at intervals in the circumferential direction and the other is introduced, the respective engaging convex is introduced And an engagement groove into which each engagement projection is inserted as the core and the flange are relatively rotated in a predetermined direction. Are formed, the connection end of the core and With the inner peripheral edge of the runge fitted, the core and the flange are operated to rotate relative to each other in a predetermined direction to connect them, and the operation to rotate relative to each other in the opposite direction is released A flanged winding core that has been made possible has been proposed (see, for example, Patent Document 1).

JP, 2014-58395, A

  In the flanged winding core described in Patent Document 1, when connecting the core and the flange when attaching the flange to both ends of the core, the connection end of the core and the inner peripheral edge of the flange are fitted together By relatively rotating the core and the flange only in one predetermined predetermined direction (connection direction), the two are connected and can not be connected in the opposite direction. Further, when releasing the connection between the core and the flange when removing the flange from both ends of the core, the connection between the both is released by rotating relatively only in the reverse direction (releasing direction) to the connection. It can not be released by relative rotation in the direction.

  For this reason, when attaching and detaching the flanges to both ends of the core, the operator must always be aware of the relative pivoting direction of the core and the flange, so the workability is poor, and the work is in progress. Since the hand repeats the same movement and becomes a biased movement, when mounting or removing a large number of cores and flanges in succession, there is a problem that fatigue is accumulated in the worker.

  An object of the present invention is to provide a flanged winding core which can easily attach and detach flanges to both ends of the core and can reduce worker's fatigue.

In order to achieve the above object, the invention according to claim 1 comprises a cylindrical core, and a pair of ring-shaped flanges detachably attached to both ends of the core, wherein the end of the core is made of By fitting the hole of the flange and rotating the core and the flange relative to each other in this direction, the core and the flange can be connected to each other by connecting them together. A flanged core which allows the both to be released by performing an operation to rotate relative to each other in the direction, wherein an engagement convex portion is formed along the inner end edge on the inner peripheral surface of the hole of the flange. An introduction recess for forming the engagement protrusion on the outer peripheral surface of the end of the core when the end of the core is fitted to the hole of the flange along the outer peripheral edge Is formed corresponding to the engagement convex portion And, further, an engagement concave groove is formed in which the engagement convex portion is movably inserted as the core and the flange are relatively rotated in any direction. A convex engagement portion is formed on one of the wall surface facing the axial direction of the outer wall surface and the wall surface facing the axial direction of the inner wall surface of the engagement groove, and an engagement recess is formed on the other. And when the engagement convex portion is inserted into the engagement concave groove as the core and the flange are relatively rotated in any direction, the convex engagement portion and the engagement concave portion It is characterized in that a snap engagement mechanism is provided for snap engagement.

According to the invention of claim 1, when the flanges are attached to both end portions of the core, the introduction recess formed on the outer peripheral surface of the end portion of the core corresponds to the hole portion of the flange. By inserting the end of the core into the hole of the flange in a state corresponding to the engagement convex portion formed on the inner peripheral surface, the engagement of the flange to the introduction recess of the core is achieved. A mating protrusion is introduced, and the end of the core fits into the hole of the flange, and in this state, the core and the flange are relatively rotated in any direction, and the engagement protrusion is Is inserted into the engagement concave groove, the engagement convex portion and the engagement concave groove are connected, and the flanges are attached to both ends of the core.
Further, at the time of removing the flanges from both end portions of the core, the core and the flange are relatively rotated in an arbitrary direction, and the engagement convex portion is separated from the engagement concave groove so as to introduce the introduction recess. The connection between the engagement convex portion and the engagement concave groove is released by being positioned, and the flange can be removed from both ends of the core by pulling out the flange from both ends of the core in this state.
Then, the convex engaging portion is in one of the wall surface facing in the axial direction of the inner wall surface of the wall facing the axial direction of the outer wall surface of the engaging convex portion and the engaging recessed groove, the other engaged When the engagement convex portion is inserted into the engagement concave groove as the interlocking concave portion is formed, and the core and the flange are relatively rotated in any direction, the convex engagement is formed. Since a snap engagement mechanism is provided in which the engagement portion and the engagement recess snap-engage, when the core and the flange are relatively rotated to insert the engagement protrusion into the engagement recess. The convex engaging portion and the engaging concave portion constituting the snap engaging mechanism provided in the engaging convex portion and the engaging concave groove are in snap engagement with each other. It becomes resistance of further relative rotation of the core and the flange in the connection state with the recessed groove. It is possible to maintain the attachment state of the said core flange.

  According to the flanged winding core of the present invention, the end portion of the core is fitted in the hole portion of the flange, and in this state, the core and the flange are coupled to each other by performing an operation of rotating relative to each other in any direction. be able to. And since the connection between the core and the flange in the coupled state can be released by rotating the core and the flange relative to each other in any direction, the operation of attaching and removing the flange to both ends of the core is an operation. Since the person can work without being aware of the relative rotational direction of the core and the flange, the workability is good, and the same movement of the hand during the operation is not biased, so the fatigue of the worker is reduced. be able to. Furthermore, since the configuration is simple, manufacture is easy.

It is an exploded perspective view showing an example of an embodiment of a flanged core concerning the present invention. It is a partially expanded top view which shows the flange of a flanged core shown in FIG. It is the sectional view on the AA line of FIG. It is an enlarged plan view which shows the core of a flanged core shown in FIG. FIG. 5 is a partially omitted front view of FIG. 4; (A), (B), (C) are developed explanatory views showing the connecting operation of the flange and the core

Hereinafter, an example of the embodiment of the flanged core according to the present invention will be described in detail with reference to the drawings.
1 to 6 show an embodiment of the flanged winding core according to the present invention, and FIG. 1 is an exploded perspective view showing the flanged winding core of this example, and FIG. 2 is a flange shown in FIG. 3 is a sectional view taken along the line A-A of FIG. 2, FIG. 4 is an enlarged plan view showing the core of the flanged core shown in FIG. 1, FIG. 5 is FIG. FIGS. 6 (a), (b) and (c) are development explanatory views showing the connecting operation of the flange and the core.

The flanged winding core of this example comprises a cylindrical core 1 and a pair of ring-shaped flanges 2 detachably attached to both ends of the core 1 respectively.
The hole 3 of the flange 2 is formed by a short cylindrical portion 4 provided so as to protrude to the outer surface side of the flange 2, and the inner diameter of the hole 3, that is, the inner diameter of the short cylindrical portion 4 is the end outer diameter of the core 1 The diameter is generally the same, and the core 1 can be fitted to and detached from the outer periphery of the end portion. On the inner circumferential surface (the inner circumferential surface of the flange 2) of the short cylindrical portion 4 to be the hole portion 3, the engagement convex portion 5 having an arbitrary length in the circumferential direction is formed along the inner edge of the flange 2 It is done.

  In the engagement convex portion 5, the width L1 in the axial direction from the inner surface side edge of the flange 2 is shorter than the axial length L2 of the short cylindrical portion 4, and in this example, the axial length L2 of the short cylindrical portion 4 is approximately It is 1/2. Further, the projection length L3 of the engagement convex portion 5 projecting from the inner circumferential surface of the short cylindrical portion 4 is less than the thickness length L4 of the core 1, and from the viewpoint of strength It is preferable that it is 2. In the engagement convex part 5 comprised in this way, it is preferable to form several at predetermined intervals in the circumferential direction. In this example, as shown in FIG. 2, the two engaging convex portions 5 are formed to face each other.

  In addition, when the end of the core 1 is fitted to the hole 3 of the flange 2 along the outer peripheral edge on the outer peripheral surface of the end of the core 1 on the outer peripheral surface, 6 are formed corresponding to the engagement convex portion 5. In the introduction recess 6, the width L 5 in the axial direction from the end of the core 1 is equal to or longer than the axial length L 2 of the short cylindrical portion 4. In the present embodiment, the width L5 of the introduction recess 6 is equal to the axial length L2 of the short cylindrical portion 4. Further, the depth L7 of the introduction recess 6 is substantially the same as the length L3 of the protrusion 5 of the engagement projection 5. It is preferable that an error between the depth L7 of the introduction recess 6 and the protrusion L3 of the engagement protrusion 5 is within ± 1.5%.

  Furthermore, the non-introduction recessed surface 7 on the outer peripheral surface of both ends of the core 1 has the same depth and length as the depth L7 of the introduction recess 6 and approximately the same length as the width L1 of the engaging projection 5 An introduction recess 6 in which an engagement concave groove 8 for movably inserting the engagement convex portion 5 has a width L 6 of in the circumferential direction along the axial step surface 9 of the introduction recess 6. It is provided in communication with the

Further, in the engagement convex portion 5 and the engagement concave groove 8, the convex engagement portion 10 is formed on either one, and the engagement concave portion 11 is formed on the other, so that the core 1 and the flange 2 are relatively rotated. There is provided a snap engagement mechanism 12 in which the convex engagement portion 10 and the engagement concave portion 11 snap-engage when the engagement convex portion 5 is inserted into the engagement concave groove 8 by moving.
In the present embodiment, the convex engaging portion 10 is formed on the outer wall surface 13 of the engaging convex portion 5, and the engaging recess 11 is formed on the inner wall surface 14 of the engaging groove 8. The convex engagement portion 10 may be formed on the inner wall surface 14 of the engagement concave groove 8 and the engagement concave portion 11 may be formed on the outer wall surface 13 of the engagement convex portion 5, but this embodiment is preferable.
In the figure, reference numeral 15 denotes a reinforcing rib provided on the outer surface side of the flange 2.

According to the flanged winding core configured as described above, attachment and removal of the flanges 2 to both ends of the core 1 are performed as follows.
When the flanges 2 are attached to both ends of the core 1, the introductory recess 6 formed on the outer peripheral surface of the end of the core 1 is an engagement convex formed on the inner peripheral surface of the hole 3 of the flange 2. In a state corresponding to 5 (FIG. 6 (A)), the end of the core 1 is inserted into the hole 3 of the flange 2. Thereby, the engagement convex portion 5 of the flange 2 is introduced into the introduction concave portion 6 of the core 1, and the end of the core 1 is fitted in the hole 3 of the flange 2. The insertion of the flange 2 at the end of the core 1 into the hole 3 is performed until the inner wall surface 16 of the engagement protrusion 5 abuts on the axial step surface 9 of the introduction recess 6 of the core 1 (FIG. B)).
From this state, the core 1 and the flange 2 are relatively rotated in an arbitrary direction, and the engagement convex portion 5 is inserted into the engagement concave groove 8 to connect the engagement convex portion 5 and the engagement concave groove 8 The flanges 2 are attached to both ends of the core 1 (FIG. 6 (C)).

  In this example, the two engagement convex portions 5 are formed to face each other in the circumferential direction of the inner peripheral surface of the short cylindrical portion 4 to be the hole portion 3. The introduction concave portion 6 and the engagement concave groove 8 are engaged with each other. Since the same number is formed in the circumferential direction corresponding to the joint convex portion 5, the engagement convex portion 5 and the engagement concave groove 8 are connected at two places in the circumferential direction, and the core 1 and the flange 2 are stably attached Is obtained.

  Further, in this example, a snap formed by the convex engaging portion 10 formed on the outer wall surface 13 of the engaging convex portion 5 and the engaging recess 11 formed on the inner wall surface 14 of the engaging concave groove 8 Since the engagement mechanism 12 is provided, when the engagement convex portion 5 is inserted into the engagement concave groove 8, the convex engagement portion 10 and the engagement concave portion 11 constituting the snap engagement mechanism are snap-engaged Since it matches, it becomes resistance of the further relative rotation of the core 1 and the flange 2 in the connection state of the engagement convex part 5 and the engagement ditch | groove 8, and the attachment state of the core 1 and the flange 2 is maintained.

  When removing the flange 2 from both ends of the core 1, the core 1 and the flange 2 are rotated relative to each other in an arbitrary direction, and the engagement convex portion 5 is separated from the engagement concave groove 8. Position. Thereby, the connection between the engagement convex portion 5 and the engagement concave groove 8 is released, and the flange 2 can be removed from the both ends of the core 1 by pulling out the flange 2 from the both ends of the core 1 in this state.

Reference Signs List 1 core 2 flange 3 hole 4 short cylinder 5 engagement projection 6 introduction recess 7 non-introduction recess surface 8 engagement recess groove 9 step surface 10 projection engagement portion 11 engagement recess 12 snap engagement mechanism 13 outer wall surface 14 inner wall surface 15 reinforcing rib 16 inner wall surface

Claims (1)

A cylindrical core, and a pair of ring-shaped flanges detachably attached to both ends of the core, the end of the core is fitted in the hole of the flange, and in this state, the core and the flange To make it possible to connect the two by making the relative rotation in any direction, and to make it possible to release the two by making the core and the flange in the connecting state to make relative rotation in any direction. A wound core with flanges,
On the inner peripheral surface of the hole of the flange, an engagement protrusion is formed along the inner edge, and on the outer peripheral surface of the end of the core, the end of the core is formed along the outer peripheral edge An introduction concave portion for introducing the engagement convex portion when the portion is fitted into the hole portion of the flange is formed corresponding to the engagement convex portion, and further, the core and the flange are relatively opposed in any direction. An engagement concave groove is formed in which the engagement convex portion is movably inserted as it is rotated,
Convex engaging portion in one of the wall surface facing in the axial direction of the wall surface facing in the axial direction of the outer wall surface of the engagement projection inner wall surface of the engaging recessed groove, the engaging recesses in the other Are respectively formed, and when the engagement convex portion is inserted into the engagement concave groove as the core and the flange are relatively rotated in an arbitrary direction, the convex engagement portion is formed. And a snap-engagement mechanism for snap-engaging the engagement recess.

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