JP6151966B2 - Mounting structure of sheet take-up device - Google Patents

Description

  The present invention relates to a mounting portion structure of a sheet winding device.

  Patent Document 1 below discloses a tonneau cover device including a winding shaft that winds a sheet-like tonneau cover. In the tonneau cover device, a cross-shaped cylindrical portion is formed on the outer side in the axial direction of the inner cover that rotatably supports the winding shaft so as to protrude outward in the axial direction on the same axis as the winding shaft. The outer cover arranged so as to cover the inner cover and the cylinder part is formed with a cross-shaped boss protruding toward the cylinder part side, and the boss is slidably inserted into the cylinder part. The outer cover is held so as to be movable in the axial direction with respect to the inner cover. At that time, when the hook formed on the boss moves in the long hole formed in the cylindrical portion and the outer cover moves outward in the axial direction with respect to the inner cover, the hook contacts the end surface of the long hole. This prevents the outer cover from falling off.

JP 2012-148614 A

  In the structure described in Patent Document 1, the cross-shaped boss is slidably inserted into the cross-shaped tube portion, and thus the tonneau cover is regulated in the vertical direction and the front-rear direction when assembled to a vehicle or the like. Suppresses rattling.

  However, since the outer cover boss slides in the cylinder part of the inner cover, the outer cover moves in the axial direction with respect to the inner cover. Therefore, when the outer cover is fully compressed (at the minimum dimension in the expansion / contraction direction) A space corresponding to the axial length of the boss or the cylinder portion is required. In other words, at the time of maximum compression of the outer cover, a space of at least about 1/2 of the length from one end to the other end of the range in which the boss and the cylindrical portion move relatively is necessary, from the viewpoint of space saving. There is room for improvement.

  In view of the above facts, the present invention has an object to obtain a mounting structure for a sheet winding device that secures a necessary moving distance of the cover and reduces a space necessary for moving the cover outside the case.

The mounting structure of the sheet winding device according to the invention of claim 1 is slidably fitted into a long case in which a winding shaft for winding a sheet is housed and an outer peripheral surface of an end of the case. A cylindrical cover supported by the support portion of the attached member, a guide portion formed on the end wall of the case and positioned outside the extension of the sheet wound around the winding shaft, A protrusion that protrudes from the cover, slides on the guide portion, and has a tip portion inserted into the case from the guide portion when the cover moves inward in the longitudinal direction of the case; An urging member disposed between the cover and the end wall and urging the cover outward in the longitudinal direction of the case, and formed on the cover, and locked to a stopper portion provided on the case. Remove the cover from the case. Possess a stopper portion for stopping the said guide portion, the outer surface of the end wall of the casing, a cylindrical portion that protrudes outward longitudinal direction of said casing.

In the mounting structure of the sheet winding device according to claim 1, a guide portion is formed on the end wall of the case, the guide portion being located outside the extension of the sheet wound on the winding shaft. Is moved toward the inside in the longitudinal direction of the case, the tip of the projecting body protruding from the case is inserted into the case from the guide portion. Thereby, the inside of a case can be utilized as a movement space of a protrusion. For this reason, the movement space of the cover required outside the case can be reduced.
Further, the guide is guided by the guide portion, so that the backlash of the cover that is slidably fitted to the end portion of the case and supported by the support portion of the attached member can be suppressed.
The cover is pushed by the urging member and supported by the support part of the attached member, but even if it is removed from the support part, the stopper part is locked to the stopper part provided in the case, so the cover is the case Can be prevented from falling off.
Furthermore, a guide part is a cylinder part which protrudes in the outer side of the longitudinal direction of a case in the outer side surface of the edge part wall of a case. The projecting body can be set short because the cylindrical portion projects outward in the longitudinal direction of the case.

  According to a second aspect of the present invention, in the attachment structure of the sheet winding device according to the first aspect, an insertion portion of the projecting body into the guide portion is a portion of the sheet wound around the winding shaft. It is set as the plate shape arrange | positioned along the circumferential direction.

  In the attachment part structure of the sheet winding device according to claim 2, the insertion portion of the protruding body into the guide part is formed in a plate shape arranged along the circumferential direction of the sheet wound around the winding shaft. Therefore, the projecting body can be efficiently arranged outside the extension of the sheet wound on the winding shaft of the end wall of the cover. Thereby, when a cover moves toward the longitudinal direction inner side of a case, the length by which a protrusion is inserted into the inside of a case from a guide part can be lengthened, and a space can be reduced more.

  According to a third aspect of the present invention, in the attachment part structure of the sheet winding device according to the first or second aspect, the protrusion is a plurality of ribs extending along the axial direction of the winding shaft. The guide part is a plurality of cylindrical parts into which the ribs are respectively inserted.

  In the attachment structure of the sheet winding device according to claim 3, the projecting body is a plurality of ribs extending along the axial direction of the winding shaft, and the plurality of ribs are respectively inserted into the plurality of cylindrical portions. Thus, the plurality of ribs are stably guided by the cylindrical portion, and the backlash of the cover can be more reliably suppressed. Moreover, the some rib is extended along the axial direction of a winding shaft, and a some rib can be arrange | positioned efficiently.

  According to the mounting structure of the sheet winding device according to the present invention, it is possible to secure a necessary moving distance of the cover and reduce a space necessary for moving the cover outside the case.

It is sectional drawing which fractured | ruptured partially the attachment part structure of the sheet | seat winding apparatus which is one Embodiment of this invention. It is a perspective view which shows the edge part of the right side of the attachment part structure of the sheet | seat winding apparatus which is one Embodiment of this invention. It is the perspective view which fractured | ruptured a part which shows the right end part of the attachment part structure of the sheet | seat winding apparatus which is one Embodiment of this invention. It is a perspective view which shows the state which decomposed | disassembled the right end part of the attachment part structure of the sheet | seat winding apparatus which is one Embodiment of this invention. It is the side view seen from the right side which shows the inner cover used for the attachment part structure of the sheet | seat winding apparatus which is one Embodiment of this invention. FIG. 6A is a cross-sectional view showing a state in which the outer cover at the right end of the attachment structure of the sheet winding device according to the embodiment of the present invention is extended to the maximum, and FIG. These are front views which show the state which the outer cover extended in the right edge part of the attachment part structure of the sheet | seat winding apparatus which is one Embodiment of this invention at the maximum. It is sectional drawing which shows the state at the time of the maximum compression of the outer cover in the right end part of the attachment part structure of the sheet | seat winding apparatus which is one Embodiment of this invention. FIG. 8 (A) is a perspective view in which a part of the outer cover at the right end of the mounting structure of the conventional sheet winder is extended to the maximum, and FIG. FIG. 10 is a partially cutaway perspective view showing the state of the outer cover at the maximum compression state at the right end of the mounting structure of the conventional sheet winding device.

  Hereinafter, with reference to FIGS. 1 to 7, an embodiment of the attachment structure of the sheet winding device according to the present invention will be described.

  FIG. 1 is a cross-sectional view of a sheet winding device 10 to which a mounting structure of a sheet winding device according to an embodiment of the present invention is applied. In the present embodiment, a tonneau cover device that winds up a sheet-like tonneau cover will be described as an example of the sheet winding device 10. In the drawings, the upper side of the sheet winding device 10 is indicated by an arrow UP, the right side of the sheet winding device 10 is indicated by an arrow RH, and the front side of the sheet winding device 10 is indicated by an arrow FR.

  As shown in FIG. 1, the sheet winding device mounting portion structure of the present embodiment is provided at the right end (one end) and the left end (the other end) in the longitudinal direction of the sheet winding device 10. 11 is applied. Since the right end and the left end of the sheet winding device 10 are symmetric with respect to the central portion in the left-right direction of the sheet winding device 10, the right end of the sheet winding device 10 is used. As for the part and the left end, the right end of the sheet winding device 10 will be described, and the description of the left end of the sheet winding device 10 will be omitted.

  As shown in FIGS. 1 to 3, the sheet take-up device 10 includes a substantially long cylindrical case 12, and the cross-sectional shape of the case 12 is a partially open substantially rectangular shape. A slit 14 is formed through the rear side wall of the case 12, and the slit 14 is disposed along the left-right direction (see FIGS. 2 and 6B).

  As shown in FIGS. 4 and 6A, an inner cover 16 serving as a substantially rectangular end wall made of resin is provided at the right end of the case 12. The inner cover 16 has a bottom wall 18 that closes the right end of the case 12, and a plurality of inner walls 16 that protrude radially inward of the peripheral edge of the bottom wall 18 inward in the longitudinal direction of the case 12 and fit into the inner wall of the case 12. And a protrusion 20. The inner cover 16 has a plurality of protrusions 20 fitted into the inner wall of the case 12, and the inner cover 16 is attached to the case 12 with the peripheral edge of the bottom wall 18 being in contact with the right edge of the case 12. Installed. A substantially cylindrical support shaft 22 is provided at the center of the bottom wall 18 of the inner cover 16, and the support shaft 22 is located on the left side of the bottom wall 18 of the inner cover 16 (inner side in the longitudinal direction of the case 12). ) (See FIG. 1).

  As shown also in FIG. 5, reinforcing ribs 24 protruding in a substantially lattice shape are provided on the outer side in the longitudinal direction of the case 12 on the outer side surface (right side surface) of the bottom wall 18 of the inner cover 16. Further, on the outer surface (right side surface) of the bottom wall 18 of the inner cover 16, the outer side of the extension of the sheet 34 wound around the support shaft 22 (the periphery of the sheet 34 wound around the support shaft 22). A plurality of cylindrical portions 26 as guide portions are provided on the back side. The cylindrical portion 26 protrudes to the right (longitudinal direction outer side) than the reinforcing rib 24 with respect to the bottom wall 18 of the inner cover 16. In the present embodiment, the cylindrical portion 26 is formed in a substantially rectangular shape when viewed from the right side, and the three cylindrical portions 26 are arranged close to the peripheral edge side of the bottom wall 18.

  In the present embodiment, the inner cover 16 separate from the case 12 constitutes the end wall of the case 12, but is not limited to this, and the end wall may be provided integrally with the case 12.

  As shown in FIG. 1, a substantially cylindrical winding shaft 32 is provided inside the case 12. The winding shaft 32 is disposed coaxially with the support shaft 22 of the inner cover 16 and is rotatably supported by the support shaft 22. As shown in FIGS. 2 and 3, one end of the sheet 34 is fixed to the take-up shaft 32, and when the take-up shaft 32 is rotated around one axis (hereinafter referred to as “winding direction”). The sheet 34 is wound in layers on one end of the winding shaft 32 from one end. On the other hand, when the other end of the sheet 34 is pulled, the sheet 34 is pulled out from the slit 14 of the case 12 while the winding shaft 32 rotates around the axis (hereinafter referred to as “drawing direction”). In the present embodiment, a tonneau cover is used as the sheet 34.

  A coil spring 36 is provided inside the winding shaft 32. One end of the coil spring 36 is locked to the support shaft 22 of the inner cover 16, and the other end of the coil spring 36 is locked to the winding shaft 32. The coil spring 36 moves the winding shaft 32 in the winding direction. Is energized.

  As shown in FIGS. 1 to 4, an outer cover 40 is provided at the right end of the case 12 as a cylindrical cover made of resin. A substantially rectangular plate-like bottom wall 42 is disposed on the right side of the outer cover 40. The bottom wall 42 is integrally provided with a substantially rectangular cylindrical peripheral wall 44 at the outer periphery, and the peripheral wall 44 protrudes leftward (inward in the longitudinal direction of the case 12) with respect to the bottom wall 42.

  The bottom wall 42 of the outer cover 40 is a protruding body that protrudes outward (radially outward) on the extension of the sheet 34 wound around the winding shaft 32 and toward the left (inner cover 16 side). A plurality of ribs 46 are provided. In other words, the plurality of ribs 46 are wound around the winding shaft 32 when the outer cover 40 moves to the inner side in the longitudinal direction of the case 12 when the plurality of ribs 46 do not interfere with the sheet 34 wound around the winding shaft 32. The position where the taken sheet 34 is avoided). The plurality of ribs 46 are provided at positions facing the positions of the plurality of cylindrical portions 26, and the outer shape of the ribs 46 is slightly smaller than the inner shape of the inner wall portion 26 </ b> A of the cylindrical portion 26. . Accordingly, the plurality of ribs 46 are slidably inserted (supported) into the cylindrical portion 26 formed on the inner cover 16. In the present embodiment, three ribs 46 are provided on the bottom wall 42 of the outer cover 40, and the ribs 46 are respectively inserted into the three cylindrical portions 26 of the inner cover 16.

  The rib 46 is a plate-like piece that is elongated in a side view, and is disposed around a portion on the axial extension of the sheet 34 wound around the winding shaft 32. The rib 46 extends along the axial direction of the winding shaft 32. The length of the rib 46 in the longitudinal direction (longitudinal direction of the case 12) is longer than the length of the cylindrical portion 26 in the longitudinal direction (longitudinal direction of the case 12).

  A long hole 48 as a stopper portion is formed in the peripheral wall 44 on the rear surface side of the outer cover 40 along the longitudinal direction of the case 12 (see FIG. 2). A plate-like attachment portion 28 is formed at a rear end portion of the bottom wall 18 of the inner cover 16 along a position facing the long hole 48 (see FIG. 1). The attachment portion 28 protrudes from the bottom wall 18 to the inside in the longitudinal direction of the case 12. A screw 50 as a stopper portion is fastened and fixed to the mounting portion 28 through a through hole formed in the case 12. The screw 50 is accommodated in the long hole 48. The screw 50 is in contact with the inner end surface in the longitudinal direction of the long hole 48, so that the movement of the outer cover 40 in the right direction (the outer side in the longitudinal direction of the case 12) is prevented at the first position (assembly position) (FIG. 6 (B)). This prevents the outer cover 40 from falling off the case 12 and the inner cover 16.

In the present embodiment, the screw 50 is fastened and fixed to the mounting portion 28 of the inner cover 16 through a through-hole formed in the case 12, but the present invention is not limited to this. The structure fixed to either one of the cases 12 may be sufficient.
In this embodiment, the long hole 48 is provided as the stopper portion and the screw 50 is provided as the stopper portion. However, if the outer cover 40 can be prevented from falling off from the case 12 and the inner cover 16, the stopper The shape of the part and the stopper part can be changed.

  Further, the rib 46 is slidable in the left-right direction on the inner wall portion 26 </ b> A of the cylindrical portion 26, so that the outer cover 40 moves in the left-right direction (longitudinal direction of the case 12) with respect to the inner cover 16. For this reason, the outer cover 40 is movable leftward from the first position (inward in the longitudinal direction of the case 12). In the outer cover 40, the screw 50 abuts on the outer end surface in the longitudinal direction of the long hole 48. (Hereinafter, this position is referred to as “second position”). The outer cover 40 may be configured to move until the distal end portion of the cylindrical portion 26 of the inner cover 16 contacts the bottom wall 42 of the outer cover 40.

  At that time, the length of the rib 46 in the longitudinal direction (longitudinal direction of the case 12) is longer than the length of the cylindrical portion 26 (longitudinal direction of the case 12), so that the outer cover 40 is left The tip of the rib 46 is inserted into (inserted into) the case 12 from the cylindrical portion 26 when moving toward the direction (inner side in the longitudinal direction of the case 12).

  A concave lid portion 52 that covers a part of the bottom wall 42 and the peripheral wall 44 is fitted to the right end of the outer cover 40 (outside in the longitudinal direction of the case 12). The lid 52 is attached to reinforce the end of the outer cover 40.

  Between the bottom wall 18 of the inner cover 16 and the bottom wall 42 of the outer cover 40, a compression coil spring 54 as a substantially spiral urging member is stretched. A curved portion 56 disposed along the circumferential direction is formed on the bottom wall 42 of the outer cover 40 so as to protrude to the left. The right end portion of the compression coil spring 54 is formed on the bottom wall 42. It is locked inside the bending portion 56 (see FIG. 3). The left end of the compression coil spring 54 is locked to the outside of a substantially cross-shaped protrusion 25 (see FIG. 5) provided on the bottom wall 18 of the inner cover 16.

  In the present embodiment, the three cylindrical portions 26 of the inner cover 16 and the three ribs 46 of the outer cover 40 are disposed outside the compression coil spring 54 in the radial direction. The compression coil spring 54 urges the outer cover 40 to the right (outward in the longitudinal direction of the case 12), whereby the outer cover 40 is held in the first position by the urging force of the compression coil spring 54. (See FIG. 6A). Further, when the outer cover 40 is moved leftward (inward in the longitudinal direction of the case 12) against the urging force of the compression coil spring 54, as described above, the outer cover 40 can be moved to the second position. Yes (see FIG. 7).

  Next, the operation of the present embodiment will be described.

  When the cargo compartment of the vehicle is covered with the sheet winding device (tono cover device) 10, the sheet winding device 10 is attached to a side wall as an attached member above the vehicle in the cargo compartment. At this time, for example, the vicinity of the lid portion 52 of the outer cover 40 of the sheet winding device 10 is engaged with a concave portion as a support portion provided on the side wall of the cargo compartment of the vehicle.

  When engaging the recess 52 with the vicinity of the lid portion 52 of the outer cover 40 of the sheet winding device 10, the outer cover 40 is gripped and the outer cover 40 is first resisted against the urging force of the compression coil spring 54. From the position (see FIGS. 6A and 6B), the case 12 is moved to the second position (see FIG. 7) on the inner side in the longitudinal direction. At this time, the plurality of ribs 46 of the outer cover 40 move while sliding on the inner wall portion 26 </ b> A of the cylindrical portion 26. Thereby, the length of the longitudinal direction of the sheet winding apparatus 10 becomes short. In this state, when the position of the outer cover 40 is adjusted to the position of the recess and the outer cover 40 is released, the outer cover 40 is moved from the second position to the right by the urging force of the compression coil spring 54 (outside in the longitudinal direction of the case 12). To be engaged with the recess. Thereby, the sheet winding device 10 is attached to the vehicle.

  In this state, when the other end of the sheet (tono cover) 34 is pulled, the sheet 34 is pulled out from the slit 14 of the case 12. By engaging the other end of the pulled-out seat 34 with the vehicle, the seat 34 covers the cargo compartment of the vehicle.

  On the other hand, when removing the seat winder 10 from the vehicle, the outer cover 40 is gripped, and the outer cover 40 is moved to the second position against the urging force of the compression coil spring 54 to the left. Thereby, the length of the sheet winding device 10 in the longitudinal direction is shortened, and the engagement between the outer cover 40 and the concave portion of the vehicle can be released.

  Thereafter, when the outer cover 40 is released, the outer cover 40 is moved to the first position by the urging force of the compression coil spring 54. At this time, the screw 50 fixed to the inner cover 16 is brought into contact with the inner end surface in the longitudinal direction of the long hole 48 of the outer cover 40 (see FIG. 6B). For this reason, the movement of the outer cover 40 to the right (the longitudinal direction outside of the case 12) is prevented, and the outer cover 40 is prevented from falling off from the case 12.

  Here, the bottom wall 42 of the outer cover 40 protrudes outward (in the radial direction) on the extension of the sheet 34 wound around the winding shaft 32 toward the left (inward in the longitudinal direction of the case 12). A plurality of ribs 46 are provided, and the ribs 46 are slidably inserted into the cylindrical portion 26 of the inner cover 16. Further, the length of the rib 46 of the outer cover 40 in the longitudinal direction is longer than the length of the cylindrical portion 26 of the inner cover 16 in the longitudinal direction.

  As shown in FIG. 6A, when the outer cover 40 is moved to the first position by the urging force of the compression coil spring 54, the rib 46 and the one end of the cylindrical portion 26 when the outer cover 40 is extended to the other position. The length in the longitudinal direction to the end is L1. On the other hand, as shown in FIG. 7, when the outer cover 40 moves to the left (inward in the longitudinal direction of the case 12) against the urging force of the compression coil spring 54, the tip end of the rib 46 is a cylinder. It is inserted (entered) into the case 12 from the left end of the portion 26. Accordingly, when the outer cover 40 is moved to the second position, the length in the longitudinal direction from the one end to the other end of the rib 46 and the cylindrical portion 26 at the time of maximum compression of the outer cover 40 becomes L2. This L2 is the minimum required dimension when the outer cover 40 is compressed.

  In the attachment structure 11 of such a sheet winding device, when the outer cover 40 is moved to the second position (inner side in the longitudinal direction of the case 12), the distal end portion of the rib 46 is the left end portion of the cylindrical portion 26. Therefore, the inside of the case 12 can be used as a moving space for the rib 46. For this reason, said minimum required dimension L2 can be made shorter than the length of the longitudinal direction of the rib 46, and the movement space of the outer cover 40 required in the longitudinal direction outer side of the case 12 can be reduced.

  Further, since the plurality of ribs 46 are formed as long and narrow plate-like pieces arranged along the circumferential direction of the sheet 34 wound around the winding shaft 32, the plurality of ribs 46 are made to be the bottom wall of the outer cover 40. 42 can be efficiently arranged outside the extension of the sheet 34 wound around the winding shaft 32. Thus, when the outer cover 40 moves toward the left (inward in the longitudinal direction of the case 12), the length by which the leading end of the rib 46 is inserted into the case 12 from the left end of the cylindrical portion 26. Can be lengthened. For this reason, the movement space of the outer cover 40 can be reduced more effectively.

  In the present embodiment, the entire rib 46 is an elongated plate-like piece, but the same effect can be obtained if at least a portion of the rib 46 inserted into the cylindrical portion 26 is plate-shaped.

  Further, the plurality of ribs 46 extend along the axial direction of the take-up shaft 32, and the plurality of ribs 46 are inserted into the cylindrical portion 26 of the inner cover 16, so that the plurality of ribs 46 are connected to the cylindrical portion 26. Each is guided by the inner wall portion 26A. For this reason, the some rib 46 is stably guided by the cylinder part 26, and the play of the outer cover 40 supported by the recessed part of a vehicle can be suppressed more reliably. Further, since the plurality of ribs 46 extend along the axial direction of the winding shaft 32, the plurality of ribs 46 can be efficiently disposed on the bottom wall 42 of the outer cover 40.

  Further, a compression coil spring 54 is stretched between the bottom wall 18 of the inner cover 16 and the bottom wall 42 of the outer cover 40, and a plurality of cylindrical portions 26 and a plurality of ribs are provided radially outward of the compression coil spring 54. 46 is arranged. For this reason, the position of the compression coil spring 54 can be set by the plurality of cylindrical portions 26 and the plurality of ribs 46, and the collapse of the compression coil spring 54 can be suppressed. Thereby, the attachment property at the time of attaching the compression coil spring 54 can be improved.

  Here, a sheet winding apparatus 100 of a comparative example will be described with reference to FIG.

  As shown in FIG. 8A, in the attachment structure 101 of the sheet winding device, the inner cover 102 is fixed to the end of the case 12 in the longitudinal direction. On the bottom wall 103 on the outer side in the axial direction of the inner cover 102, a substantially cross-shaped cylindrical portion 104 is coaxially projected with respect to the winding shaft (not shown) and the support shaft (not shown) so as to protrude outward in the axial direction. Is formed. An outer cover 106 is provided at an end of the case 12 in the longitudinal direction so as to cover the inner cover 102, and a substantially central portion of the bottom wall 42 of the outer cover 106 protrudes toward the cylindrical portion 104 side. A cross-shaped boss 108 is formed. The outer shape of the boss 108 is slightly smaller than the inner shape of the cylindrical portion 104, and the boss 108 is slidably inserted into the cylindrical portion 104, so that the outer cover 106 is axial with respect to the inner cover 102. It is possible to move to.

  A compression coil spring 54 is disposed between the bottom wall 103 of the inner cover 102 and the bottom wall 42 of the outer cover 106. Although not shown, the hook formed on the boss 108 is configured to move in a long hole formed in the cylindrical portion 104 along the axial direction. When the outer cover 106 is moved to the first position on the right side (in the longitudinal direction of the case 12) with respect to the inner cover 102 by the urging force of the compression coil spring 54, a hook (not shown) is attached to the end surface of the elongated hole. By coming into contact, the outer cover 106 is prevented from falling off.

  Further, as shown in FIG. 8B, when the outer cover 106 is moved to the left (inward in the longitudinal direction of the case 12) against the urging force of the compression coil spring 54, the tip of the boss 108 becomes the inner cover. The outer cover 106 moves until it abuts against the bottom wall 103 of the 102 or until the tip of the cylindrical portion 104 abuts against the bottom wall 42 of the outer cover 106. The movement position of the outer cover 106 is the second position.

  In the seat winding device mounting portion structure 101, since the substantially cross-shaped boss 108 is slidably inserted into the substantially cross-shaped tube portion 104, it is restricted in the vertical direction and the front-rear direction when assembled to a vehicle or the like. As a result, backlash of the outer cover 106 can be suppressed.

  However, in the attachment structure 101 of the sheet winding device, the boss 108 formed at the center portion of the bottom wall 42 of the outer cover 106 is connected to the cylindrical portion 104 formed at the center portion of the bottom wall 103 of the inner cover 102. It is slidably inserted. For this reason, as shown in FIG. 8 (B), when the outer cover 106 is maximum compressed (at the minimum dimension in the expansion / contraction direction), either the boss 108 or the cylindrical portion 104 has a longer space in the axial direction. Necessary. That is, the longer axial length of the boss 108 and the cylindrical portion 104 is the minimum required dimension L3. In other words, a space of at least about ½ of the length from one end to the other end of the range in which the boss 108 and the cylindrical portion 104 relatively move when the outer cover 106 is compressed at maximum (see FIG. 8A) is required. Therefore, space saving is difficult.

  On the other hand, as shown in FIG. 7, in the attachment part structure 11 of the sheet winding device of the present embodiment, when the outer cover 40 moves to the second position (in the longitudinal direction of the case 12), the rib 46 Is inserted (entered) into the case 12 from the left end of the cylindrical portion 26. As a result, the inside of the case 12 can be used as a moving space for the rib 46, and the minimum required dimension L2 can be made shorter than the length of the rib 46 in the longitudinal direction. For this reason, while the required moving distance of the outer cover 40 is ensured, the space required for the movement of the outer cover 40 on the outer side in the longitudinal direction of the case 12 can be reduced.

  In the present embodiment, the ribs 46 are provided at three locations on the bottom wall 42 of the outer cover 40. However, the present invention is not limited to this, and the ribs 46 may not be provided at three locations as long as the ribs 46 can be stably disposed. .

  In the present embodiment, the rib 46 is a plate-shaped piece, but is not limited thereto, and a protrusion having another shape may be provided. For example, if the projecting body that protrudes to the left (inward in the longitudinal direction of the case 12) from the bottom wall 42 of the outer cover 40 is substantially L-shaped in a side view, the projecting body can be stably disposed even if there are two projecting bodies. Can do.

  In addition, the projecting body may be formed in an arc shape, or may have a configuration in which a plurality of (for example, three) cylindrical pins are arranged.

  In the present embodiment, the sheet winding device mounting portion structure 11 is provided at both ends of the case 12 in the longitudinal direction. However, the present invention is not limited to this, and at least one of the ends of the case 12 in the longitudinal direction is provided. Alternatively, a configuration in which the attachment structure 11 of the sheet winding device is provided may be used.

  In the present embodiment, as the sheet winding device 10, a tonneau cover device that covers the cargo compartment has been described as an example, but the present invention is not limited to this. For example, the present invention can be applied to a sheet winding device that covers a side window, a roof window, and the like.

DESCRIPTION OF SYMBOLS 10 Sheet winding device 11 Attachment part structure 12 of sheet winding device Case 16 Inner cover (end wall)
26 Tube section (guide section)
32 Winding shaft 34 Sheet 40 Outer cover (cover)
46 Ribs (projections)
48 Long hole (stopper)
50 screws (stopped part)
54 Compression coil spring (biasing member)

Claims (3)

A long case in which a winding shaft for winding a sheet is housed;
A cylindrical cover that is slidably fitted to the outer peripheral surface of the end portion of the case, and is supported by the support portion of the attached member;
A guide portion formed on an end wall of the case and positioned on an outer side of the extension of the sheet wound on the winding shaft;
A protrusion that protrudes from the cover, slides on the guide portion, and has a tip portion inserted into the case from the guide portion when the cover moves inward in the longitudinal direction of the case;
A biasing member disposed between the cover and the end wall and biasing the cover to the outside in the longitudinal direction of the case;
A stopper portion that is formed on the cover and is locked to a stopper portion provided on the case to prevent the cover from falling off the case;
I have a,
The guide part is a mounting part structure of a sheet winding device, which is a cylindrical part that protrudes outward in the longitudinal direction of the case on the outer surface of the end wall of the case .   The sheet winding device according to claim 1, wherein an insertion portion of the projecting body into the guide portion is formed in a plate shape arranged along a circumferential direction of the sheet wound around the winding shaft. Mounting part structure. The protrusions are a plurality of ribs extending along the axial direction of the winding shaft;
The attachment part structure of the sheet winding apparatus according to claim 1 or 2, wherein the guide part is a plurality of cylindrical parts into which the ribs are respectively inserted.

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