JP2008143379A - Tonneau cover engagement structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a more practical tonneau cover engagement structure. <P>SOLUTION: The tonneau cover engagement structure 1 has such a structure that one side of the tonneau cover 2 is engaged with a back 3a of a seat back 3. The one side end is provided with an engagement shaft 4, and provided with an engagement means 5 having the engagement shaft 4 engaged with the back 3a. When the engagement shaft 4 is engaged with the engagement means 5 in a view from the engagement shaft 4 direction, the portion brought in contact with the engagement shaft 4 of the engagement means 5 constitutes an inclined wall surface 5a in which an extended surface of the portion intersects above the engagement shaft 4 with respect to the back 3a of the seat back 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a tonneau cover engagement structure suitable for being applied to vehicles such as passenger cars, trucks, and buses.

  Conventionally, in vehicles such as hatchback cars and RV cars, a tonneau cover has been provided so that the luggage compartment arranged behind the seat back of the rear seat and the passenger compartment are usually separated from each other so that the luggage in the luggage compartment is not visible. It has been. This tonneau cover is made of flexible material such as vinyl, synthetic leather, leather, cloth, etc., one end is engaged with the back of the seat back of the rear seat of the vehicle, and the other end incorporates a winding spring Connected to the drum of the take-up device.

  In the tonneau cover having such a configuration, when the rear seat of the vehicle is moved forward beyond the movable range of the normal reclining mechanism, it is considered that the user loads the luggage in the luggage compartment, and the rear seat back of the rear seat is automatically set. It is more convenient for the user to remove the tonneau cover from the user.

As a tonneau cover engaging structure for engaging the tonneau cover with the back surface of the seat back as described above, there is a tonneau cover structure as described in Patent Document 1, and an engagement hole that opens downward is provided on the back surface of the seat back so that the tonneau cover is provided. An L-shaped engagement piece projecting upward is provided at one end of the seat, and the tonneau cover is engaged with the back surface of the seat back by engaging the engagement piece with the engagement hole. A configuration in which the engagement piece is detached from the engagement hole has been proposed.
Japanese Utility Model Publication No. 61-45264

  However, in such a conventional technique, since the engagement piece is engaged so as to be orthogonal to the engagement hole from below, the weight of one end of the engagement piece and the tonneau cover is engaged with the engagement piece. When the frictional force with the joint hole is exceeded, the engagement piece comes out of the engagement hole, and the tonneau cover comes off from the back surface of the seat back.

  For the purpose of preventing this, if the winding force of the winding device is increased in order to increase the frictional force between the engagement piece and the engagement hole, the direction of the winding force at the contact point of the engagement piece with the engagement hole Since the angle between the direction of the engagement hole and the direction of the engagement hole does not change, there arises a problem that the tonneau cover cannot be detached from the back surface of the seat back even if the seat back is tilted forward.

  Further, when the engagement piece is opened upward and the engagement piece is engaged with the engagement hole, the forward center of the seat back is below the contact point between the engagement piece and the engagement hole. This also causes a problem that the tonneau cover cannot be removed from the back surface of the seat back. That is, the tonneau cover engagement structure proposed in the prior art is not practical.

  In view of the above problems, an object of the present invention is to provide a tonneau cover engagement structure with higher practicality.

In order to solve the above problem, the tonneau cover engagement structure according to the present invention provides:
A tonneau cover engaging structure for engaging one end of the tonneau cover with the back surface of the seat back,
The one end includes an engagement shaft;
An engagement means for engaging the engagement shaft on the back surface;
In the engagement axis direction view,
When the engagement shaft is engaged with the engagement means, the portion of the engagement means that is in contact with the engagement shaft is configured such that the extended surface of the portion is less than the engagement shaft with respect to the back surface of the seat back. It is characterized by the inclined wall surface that intersects at the top. In addition, the upper direction said here shall point out the opposite side to the seat part of the said seat back.

  By configuring the tonneau cover engaging structure in this way, a tonneau cover engaging structure with high practicality can be provided as follows. The tonneau cover is made of a flexible member such as vinyl, synthetic leather, leather, or cloth, and one end of the tonneau cover encloses a rod-shaped member to form the engagement shaft. It is usually positioned parallel to the vehicle width direction and coincides with the forward and backward rotation center axis of the seat back. In addition, the other end of the tonneau cover is always urged by a winding device. The engaging means specifically refers to a hook fastened to the back surface of the seat back by a bolt or the like.

Here, the tonneau cover engaging structure is more specifically,
The engagement means includes a flexible engagement claw portion and a protrusion located below the engagement claw portion,
The tip of the engaging claw portion constitutes the inclined wall surface. In addition, the downward direction said here shall point out the seat part side of the said seat back.

  In such a structure, as described above, since the winding force is always applied to the tonneau cover, the engagement shaft of the tonneau cover is pressed against the inclined wall surface by the winding force, and the engagement shaft A frictional force due to a component force of the winding force in a direction perpendicular to the inclined wall surface is generated between the inclined wall surface and the inclined wall surface.

  The inclined wall surface is formed such that its extended surface intersects the back surface of the seat back above the engagement shaft, so that the seat back is positioned in a movable range of a normal reclining mechanism. In such a case, the component force of the winding force acting on the contact position between the engagement shaft and the inclined wall surface becomes relatively large, and the seat back is moved forward beyond the movable range of a normal reclining mechanism. The component force of the winding force acting on the contact position between the engagement shaft and the inclined wall surface becomes relatively small.

  For this reason, when the seat back is moved forward beyond the movable range of the reclining mechanism, the friction force caused by the component force of the winding force acting between the engagement shaft and the inclined wall surface is more than The resultant force of the component of the dead weight acting on the tonneau cover in the direction of the inclined wall surface and the resultant force of the winding force in the direction of the inclined wall surface are larger, and the engagement shaft slides out of the inclined wall surface and The coupling shaft pushes the engaging claw portion, which is flexible to the engaging claw portion, to the side opposite to the protruding portion, and the engaging shaft is an engaging means constituted by the engaging claw portion and the protruding portion. And the tonneau cover is detached from the back surface of the seat back.

  Thereby, when the seat back is moved forward beyond the movable range of the reclining mechanism, the tonneau cover can be automatically removed from the back surface of the seat back.

here,
In the engagement axis direction view,
It is preferable that the width of the opening formed between the tip of the engagement claw and the protrusion is smaller than the outer diameter of the engagement shaft.

  According to this, even when the winding force is not urged to the tonneau cover, the engagement shaft is held by the front end portion of the engagement claw portion and the protrusion, and the back surface of the tonneau cover is moved to the back of the seat back. The engagement can be made more reliable. That is, it is possible to prevent the engagement shaft of the tonneau cover from being disengaged from the engagement means only by the weight of the tonneau cover when the tonneau cover is slack and the winding force is not urged.

further,
In the engagement axis direction view,
It is preferable that an interval in the back direction of the seat back between the protrusion other than the front end of the engaging claw is larger than the outer diameter of the engaging shaft.

  According to this, after the engagement shaft of the tonneau cover is engaged with the engagement means, the portion other than the inclined wall surface of the engagement means does not apply an external force to the engagement shaft. A desired frictional force can be generated by reliably pressing the engagement shaft against the inclined wall surface by a take-off force.

further,
It is preferable that the engagement means includes a restriction means for restricting displacement of the engagement claw portion to the side opposite to the protrusion.

  According to this, since unnecessary displacement of the engaging claw portion to the side opposite to the protruding portion can be restricted, durability of the engaging claw portion can be enhanced.

  In order to give the engaging claw part flexibility to the side opposite to the protrusion, the whole engaging means is integrally formed of a flexible material such as resin, and the engaging claw is formed. You may adjust the thickness of the base part of a part, and you may comprise only the said engaging claw part with the metal material which has a spring effect | action.

  According to the present invention, a more practical tonneau cover engagement structure can be provided.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a schematic view showing an embodiment of a vehicle to which a tonneau cover engagement structure according to the present invention is applied as viewed from the vehicle width direction. FIG. 2 is a schematic view showing an embodiment of a tonneau cover engagement structure according to the present invention as viewed from the vehicle width direction.

  As shown in FIG. 1, the tonneau cover engaging structure 1 is such that one end of the tonneau cover 2 is engaged with the back surface 3a of the seat back 3, and one end of the tonneau cover 2 is engaged by enclosing the rod-shaped member. A shaft 5 is provided, and a hook 5 is engaged with the back surface 3a of the seat back 3 of the rear seat. The engagement shaft 4 is engaged with the hook 5 when the engagement shaft 4 is viewed in the axial direction. In this case, the portion of the hook 5 in contact with the engagement shaft 4 is inclined such that its extended surface intersects the back surface 3a of the seat back 3 at an intersection α above the engagement shaft 4 as shown in FIG. The wall surface 5a is used.

  The tonneau cover 2 normally separates the cargo compartment defined between the back door 6 constituting the vehicle and the seat back 3 of the rear seat from the vehicle compartment so as to make the luggage in the cargo compartment invisible. It is provided. The tonneau cover 2 is made of a flexible member such as vinyl, synthetic leather, leather, or cloth, and has one end engaged with the back surface 3a of the seat back 3 of the rear seat of the vehicle using a hook 5, The other end is coupled to the drum of the winding device 7 incorporating a winding spring.

  The take-up device 7 is arranged on the line connecting the installation position of the hook 5 of the seat back 3 and the boundary line between the back door 6 and the rear glass 8, between the installation position of the hook 5 of the seat back 3, the back door 6 and the rear glass 8. The both ends in the vehicle width direction are provided to be joined to the side surface of the vehicle (not shown) at a position separated from the back door 6 by about 2/3 of the distance between them.

  The winding device 7 includes another tonneau cover 9, and one end of the tonneau cover 9 is engaged with a hook 10 provided near the edge of the rear glass 8 of the back door 6. The tonneau cover 9, like the tonneau cover 2, normally separates the luggage compartment defined between the back door 6 and the seat back 3 of the rear seat from the passenger compartment so as to make the luggage in the luggage compartment invisible. It is provided for this purpose. The tonneau cover engaging structure according to the present invention is not applied to the tonneau cover 9 and the hook 10.

  The rear seat includes a reclining mechanism (not shown) and a forward tilt mechanism. The seat back 3 of the rear seat is swingably connected to the seat portion 11 via a swing shaft 12. Depending on the reclining mechanism, the seat back 3 is inclined to a degree that protrudes slightly from the perpendicular to the floor surface of the vehicle, as shown in FIG. 11 to the extent that it touches.

  Furthermore, as shown in FIG. 2A, the hook 5 is integrally formed of, for example, polypropylene resin, and is joined to two places on both ends in the vehicle width direction of the back surface 3a of the seat back 3 by bolts or an adhesive (not shown). A hook base portion 5b, a hook claw portion 5c that has flexibility and protrudes in a direction perpendicular to the back surface 3a of the seat back 3, and is positioned below the hook claw portion 5c and perpendicular to the back surface 3a of the seat back 3 The hook lower portion 5d protrudes in any direction, and the hook upper portion 5e is located above the hook claw portion 5d and protrudes in a direction perpendicular to the back surface 3a of the seat back 3.

  The tip end portion of the hook claw portion 5c is formed in a triangular shape as shown in FIG. 2A, and constitutes an inclined wall surface 5a. The hook 5 constitutes an engagement means, the hook claw portion 5c constitutes an engagement claw portion, the hook lower portion 5d constitutes a protrusion, the hook upper portion 5e constitutes a regulating means, and the engagement shaft 4 constitutes an engagement shaft. .

  Further, in the axial view of the engagement shaft 4 shown in FIG. 2A, the width L of the opening formed between the tip end portion of the hook claw portion 5 c and the hook lower portion 5 d is set to the outside of the engagement shaft 4. Smaller than the diameter M. The outer diameter M of the engagement shaft 4 includes the thickness of the tonneau cover 2 that encloses it.

  Furthermore, in the axial direction view of the engagement shaft 4 shown in FIG. 2A, a space defined between the portion other than the tip end portion of the hook claw portion 5c and the hook lower portion 5d in the direction of the back surface 3a of the seat back 3. The interval L1 is set larger than the outer diameter M of the engagement shaft 4.

  Further, the hook upper portion 5e is configured so that unnecessary displacement of the hook claw portion 5c to the opposite side of the hook lower portion 5d is restricted and the engagement shaft 4 can be engaged with the hook 5. The gap W1 with the claw portion 5c is configured to be slightly larger than at least the value ML obtained by subtracting the width L of the opening from the outer diameter M of the engagement shaft 4.

  Furthermore, the thickness W2 of the hook claw portion 5c in the vicinity of the hook base portion 5b is appropriately determined according to the force for holding the engagement shaft 4 of the hook 5. Here, the thickness W2 is set so that the hook claw portion 5c has a spring force that prevents the engagement shaft 4 from being detached from the hook 5 only by its own weight of the tonneau cover 2 and the engagement shaft 4.

  The hook 5 configured as described above is joined to the back surface 3a of the seat back 3 (not shown in FIG. 2), and the seat back 3 is moved forward from the position shown in FIG. 2 (a) by the reclining mechanism and the forward tilt mechanism. Then, as shown in FIG. 2B, the angle β of the inclined wall surface 5a with respect to the plane V perpendicular to the extending direction of the tonneau cover 2 changes as the pivot shaft 12 is rotated.

  Hereinafter, the operation of the tonneau cover engagement structure of the first embodiment described above will be described with reference to the drawings. FIG. 3 is a schematic view showing the force acting on the hook and the inclined wall surface at the normal position of the seat back of the tonneau cover engaging structure according to the present invention as viewed from the axial direction of the engaging shaft. FIG. 4 is a schematic diagram showing the force acting on the hook and the inclined wall surface of the seat back of the tonneau cover engaging structure according to the present invention when viewed from the axial direction of the engaging shaft.

  Further, FIG. 5 is a schematic view showing the rearward tilt of the seat back to which the tonneau cover engaging structure according to the present invention is applied as viewed from the axial direction of the engaging shaft. FIG. 6 is a schematic diagram showing the force acting on the hook and the inclined wall surface of the tonneau cover engagement structure according to the present invention when viewed from the axial direction of the engagement shaft.

  In the configuration of the first embodiment, as shown in FIG. 3, as described above, the winding force F is always applied to the tonneau cover 2 by the winding device 7, so that the engagement shaft 4 of the tonneau cover 2 is The frictional force F3 caused by the component force F1 of the winding force F in the direction perpendicular to the inclined wall surface 5a is generated between the engagement shaft 4 and the inclined wall surface 5a by being pressed against the inclined wall surface 5a by the winding force F. To do.

  The inclined wall surface 5a is formed such that its extended surface intersects the back surface 3a of the seat back 3 at an intersection α above the engagement shaft 4, so that the seat back 3 is within a movable range of a normal reclining mechanism. In the case where it is positioned, it is inclined at an angle β1 with respect to the floor surface of the vehicle, and thus the plane V perpendicular to the extending direction of the tonneau cover 2, so that the contact between the engagement shaft 4 and the inclined wall surface 5a. The component force F1 = F × cos θ1 of the winding force F acting on the position P is an angle θ1 = β1 formed by the component force F1 and the winding force F (the component force F1 is perpendicular to the inclined wall surface 5a, and the surface V Since the tonneau cover 2 is also vertical), it is relatively small.

  Since this component force F1 is relatively large, the frictional force F3 is also relatively large, and the component force in the direction of the inclined wall surface 5a acting on the tonneau cover 2 and the component force F2 of the winding force F in the direction of the inclined wall surface 5a. As long as the frictional force F3 is larger than the resultant force F4, the engagement shaft 4 is supported by the inclined wall surface 5a by the frictional force F3, and the engagement shaft 4 does not come off the hook 5.

  However, as shown in FIG. 4, when the seat back 3 is moved forward by the forward moving mechanism beyond the movable range of the normal reclining mechanism, the surface perpendicular to the extending surface of the inclined wall surface 5 a and the extending direction of the tonneau cover 2. Since it is inclined at a larger angle β2 with respect to V, the angle θ2 = β2 formed by the component force F1 and the winding force F (the component force F1 is perpendicular to the inclined wall surface 5a and Since the tonneau cover 2 is also vertical), the component force F1 = F × cos θ2 of the winding force F acting on the contact position P between the engagement shaft 4 and the inclined wall surface 4a becomes relatively small.

  For this reason, when the seat back 3 is moved forward by the forward moving mechanism beyond the movable range of the reclining mechanism, the winding force F acting between the engaging shaft 4 and the inclined wall surface 5a as shown in FIG. The resultant force F4 of the component weight F2 in the direction of the inclined wall surface 5a acting on the tonneau cover 2 and the component force F2 in the direction of the inclined wall surface 5a of the winding force F is greater than the friction force F3 caused by the component force F1 of The engagement shaft 4 slides out of the inclined wall surface 5a, the engagement shaft 4 pushes the hook nail part 5c having flexibility in the Z direction, and the engagement shaft 4 is detached from the hook 5 by the hook nail part 5c and the hook lower part 5d. The tonneau cover 2 is detached from the back surface 3 a of the seat back 3, and the tonneau cover 2 is wound up by the winding device 7.

  As a result, the tonneau cover 2 can be automatically removed from the back surface of the seat back when the seat back 3 exceeds the movable range of the reclining mechanism and is moved forward by the forward moving mechanism.

  Further, by making the width L of the opening formed between the tip end portion of the hook claw portion 5c and the hook lower portion 5d smaller than the outer diameter M of the engagement shaft 4, as shown in FIG. 6, even when the winding force F is not applied to the tonneau cover 2 as shown in FIG. 6, the engagement shaft 4 is held by the tip end portion of the hook claw portion 5c and the hook lower portion 5d to The engagement of the second seat back 3 to the back surface 3a can be made more reliable.

  That is, it is possible to prevent the engagement shaft 4 of the tonneau cover 2 from being detached from the hook 5 only by the weight of the tonneau cover 2 when the tonneau cover 2 is slack and the winding force F is not urged.

  Furthermore, the engagement shaft 4 of the tonneau cover 2 is made larger by making the distance L1 in the direction of the back surface 3a of the seat back 3 between the hook claw part 5c and the hook lower part 5d larger than the outer diameter M of the engagement shaft 4. After engaging the hook 5, the portions other than the inclined wall surface 5 a of the hook 5 do not apply an external force to the engaging shaft 4. To generate a desired frictional force F3.

  In addition, the frictional force F3 is changed in the inclination angle with respect to the back surface 3a of the inclined wall surface 5a of the hook claw portion 5c, the shape is changed, for example, a plurality of grooves extending in the direction of the engagement shaft 4 is provided, or the engagement shaft By appropriately changing the material of the tonneau cover 2 that forms the outer periphery of 4, it can be adjusted to an appropriate size.

  In addition, the hook 5 includes a hook upper portion 5e that restricts the displacement of the hook claw portion 5c to the opposite side of the hook lower portion 5d, thereby preventing unnecessary displacement of the hook claw portion 5c to the opposite side of the hook lower portion 5d. Since it can regulate, durability of hook claw part 5c can be improved.

  Further, by providing a curved surface on the upper side of the hook upper portion 5e, the hook claw portion 5c of the hook 5 can be made inconspicuous in appearance, and the design of the hook 5 can be improved. In addition, by setting the hook upper portion 5e and the hook lower portion 5d to be larger, the hook base portion 5b itself can be enlarged and the bonding property of the hook 5 to the back surface 3a of the seat back 3 can be improved.

  In the first embodiment described above, in order to give the hook claw portion 5c flexibility to the opposite side of the hook lower portion 5d, the entire hook 5 is integrally formed of a flexible material such as polypropylene resin. Although the thickness W2 of the root portion of the claw portion 5c is adjusted, only the hook claw portion 5c may be made of a metal material having a spring action. This configuration will be described below.

  FIG. 7 is a schematic view showing another embodiment of the tonneau cover engagement structure according to the present invention. Since the configurations of the tonneau cover 2, the seat back 3, and the winding device 7 which are the premise are the same as those shown in the first embodiment, the overlapping portions are denoted by the same reference numerals and the description thereof is omitted.

  Similar to that shown in the first embodiment, the tonneau cover engaging structure 14 engages one end of the tonneau cover 2 with the back surface 3a of the seat back 3, and the one end of the tonneau cover 2 engages the engagement shaft 4. A hook 5 with which the engagement shaft 4 is engaged with the rear surface 3a of the seat back 3 of the rear seat, and when the engagement shaft 4 is engaged with the hook 5 in the axial direction of the engagement shaft 4, The portion of the hook 15 in contact with the engagement shaft 4 is an inclined wall surface 15 a whose extended surface intersects with the back surface 3 a of the seat back 3 at an intersection α above the engagement shaft 4.

  The hook 15 includes a hook base portion 15b joined to the back surface 3a of the seat back 3 by a bolt or an adhesive (not shown), and a hook claw portion 15c that has flexibility and projects in a direction perpendicular to the back surface 3a of the seat back 3. A lower hook portion 15d located below the hook claw portion 15c and projecting in a direction perpendicular to the back surface 3a of the seat back 3, and located above the hook claw portion 15d on the back surface 3a of the seat back 3. And a hook upper portion 15e protruding in a vertical direction.

  Of these, the hook claw portion 15c is made of a metal spring material such as spring steel, and the base portion on the hook base portion 15b side is formed in a T shape. After the hook claw portion 15c is set in a mold, for example, a polypropylene resin Is formed into a hook base portion 15b, a hook lower portion 15d, and a hook upper portion 15e.

  The tip end portion of the hook claw portion 15c is formed in a triangular shape as shown in FIG. 7, and constitutes an inclined wall surface 15a. Here again, the hook 15 constitutes an engagement means, the hook claw portion 15c constitutes an engagement claw portion, the hook lower portion 15d constitutes a protrusion, and the hook upper portion 15e constitutes a restriction means.

  Further, the width L of the opening formed between the tip end portion of the hook claw portion 15 c and the hook lower portion 15 d is made smaller than the outer diameter M of the engagement shaft 4. Furthermore, the space L1 in the direction of the back surface 3a of the seat back 3 in the space defined between the portion other than the tip portion of the hook claw portion 15c and the hook lower portion 15d is made larger than the outer diameter M of the engagement shaft 4.

  Further, the hook upper portion 15e restricts unnecessary displacement of the hook claw portion 15c to the opposite side of the hook lower portion 15d and allows the engagement shaft 4 to be engaged with the hook 15. The gap W1 with the claw portion 5c is configured to be slightly larger than at least the value ML obtained by subtracting the width L of the opening from the outer diameter M of the engagement shaft 4.

  Further, the thickness W3 of the hook claw portion 15c in the vicinity of the hook base portion 15b is set so that the hook claw portion 15c has a spring force that prevents the engagement shaft 4 from being detached from the hook 15 only by the weight of the tonneau cover 2 and the engagement shaft 4. Is set.

  In the tonneau cover engaging structure 14 as in the second embodiment, as in the first embodiment, when the seat back 3 is moved forward by the forward moving mechanism beyond the movable range of the reclining mechanism, the tonneau cover 2 is removed. The seat back 3 can be automatically removed from the back surface 3a. Hereinafter, the description of the same operation effect as Example 1 is omitted.

  Further, in the tonneau cover engaging structure 14 as in the second embodiment, the hook claw portion 15c is formed of a metal such as spring steel, so that the heat resistance of the thin portion is smaller than that of the polypropylene resin. Performance can be increased. Thereby, even when the temperature of the passenger compartment becomes as high as about 80 degrees during parking or the like, the hook claw portion 15c can be prevented from being plastically deformed by heat.

  Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions are made to the above-described embodiments without departing from the scope of the present invention. be able to.

  For example, in the first embodiment, the hooks 5 are provided at two places on both ends in the vehicle width direction of the back surface 3a of the seat back 3, but the number of installations can be changed as appropriate.

  The present invention relates to a tonneau cover engagement structure suitable for application to a vehicle, and can provide a tonneau cover having high utility for a user by a relatively simple change. Therefore, the present invention is applicable to various vehicles such as passenger cars. Even useful.

1 is a schematic view showing an embodiment of a vehicle to which a tonneau cover engagement structure according to the present invention is applied as viewed from a vehicle width direction. It is a schematic diagram which shows one Embodiment of the tonneau cover engagement structure concerning this invention seeing from a vehicle width direction. It is a schematic diagram which shows the force which acts on the hook and inclination wall surface in the normal position of the seat back of the tonneau cover engagement structure concerning this invention seeing from the axial direction of an engagement shaft. It is a schematic diagram which shows the force which acts on the hook and slant wall surface in the middle of the front-turning of the seat back of the tonneau cover engagement structure concerning this invention seeing from the axial direction of an engagement shaft. It is a mimetic diagram showing the back of the seat back to which the tonneau cover engagement structure concerning the present invention is applied as seen from the axial direction of the engagement shaft. It is a schematic diagram which shows the force which acts on the hook in the middle of the fall of the seat back of the tonneau cover engagement structure concerning this invention, and the inclined wall surface seeing from the axial direction of an engagement shaft. It is a schematic diagram which shows the hook of the seat back of the tonneau cover engagement structure concerning this invention seeing from the axial direction of an engagement shaft.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tonneau cover structure 2 Tonneau cover 3 Seat back 4 Engagement shaft 5 Hook 5a Inclined wall surface 5b Hook base part 5c Hook claw part 5d Hook lower part 5e Hook upper part 6 Back door 7 Winding device 8 Rear glass 9 Tonneau cover 10 Hook 11 Seat part 12 Swing Driving shaft 14 Tonneau cover engagement structure 15 Hook 15a Inclined wall surface 15b Hook base portion 15c Hook claw portion 15d Hook lower portion 15e Hook upper portion

Claims (5)

A tonneau cover engaging structure for engaging one end of the tonneau cover with the back surface of the seat back,
The one end includes an engagement shaft;
An engagement means for engaging the engagement shaft on the back surface;
In the engagement axis direction view,
When the engagement shaft is engaged with the engagement means, the portion of the engagement means that is in contact with the engagement shaft is configured such that the extended surface of the portion is less than the engagement shaft with respect to the back surface of the seat back. A tonneau cover engagement structure characterized by being inclined wall surfaces that intersect above. The engagement means includes a flexible engagement claw portion and a protrusion located below the engagement claw portion,
The tonneau cover engagement structure according to claim 1, wherein a distal end portion of the engagement claw portion constitutes the inclined wall surface. In the engagement axis direction view,
The tonneau cover engagement structure according to claim 2, wherein a width of an opening formed between a tip portion of the engagement claw portion and the protrusion is made smaller than an outer diameter of the engagement shaft. . In the engagement axis direction view,
4. The tonneau cover according to claim 2, wherein an interval in a back direction of the seat back between the protrusion other than the front end portion of the engagement claw portion is larger than an outer diameter of the engagement shaft. Engagement structure.   The tonneau cover engagement structure according to any one of claims 2 to 4, wherein the engagement means includes a restriction means for restricting displacement of the engagement claw portion to the side opposite to the protrusion. .

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