JP6412806B2 - Backlash prevention structure of sliding protector - Google Patents

Description

  The present invention relates to a backlash prevention structure for a sliding protector in which a sliding protector for power feeding is slidably engaged with a guide rail on a floor side with respect to a slide seat of an automobile via a spring member, for example.

  Conventionally, in order to always supply power to the slide seat of an automobile, the slide support of the slide seat and the slide protector assembled to the slide support are slidably engaged with the guide rail disposed on the vehicle floor. It is known that a wire harness is routed from the vehicle floor side through the sliding protector to the slide seat side to always supply power.

  As shown in FIGS. 13 to 14, Patent Document 1 discloses a seat slide in which an upper rail (sliding support) 54 on a seat 53 side is slidably engaged with a lower rail (guide rail) 52 fixed to a vehicle floor 51. In the device 55, a rolling element 56 and a shoe 57 are provided on the upper rail 54, the rolling element 56 is rotatably contacted with the lower inner surface of the lower rail 52, and the curved plate spring-like upper sliding contact piece 58 of the shoe 57 is connected to the lower rail 52. It is described that the upper inner surface is elastically contacted.

  Further, in Patent Document 2 (not shown), a wire harness routing slider (sliding protector) is slidable on a guide rail provided on an inner surface of a bottom wall of a horizontally long case, not a guide rail on a vehicle floor. A wavy rack member is fixed to the inner surface of the upper wall of the case, a biasing member having an arcuate plate-like elastic portion is provided on the slider, and the elastic portion is slidably engaged with the rack member. In addition, a power supply device having a configuration in which backlash of the slider is suppressed is described.

  The wire harness is bent and wired in a substantially U or J shape within the case, and one of the wire harnesses is led out toward the upper slide seat through the slider, and the other of the wire harnesses extends from the end of the case to the vehicle floor side. Is derived.

  In Patent Document 3 (not shown), a metal support (sliding support) on the seat side is slidably engaged with a metal rail on the vehicle floor side, and a harness is attached to the front end of the support. Attach a wire harness mounting part (sliding protector) with a synthetic resin protector for derivation, and attach the folded end of the harness surplus length absorption part to the front end of the rail, and place the harness surplus length absorption part along the rail A wire harness routing device having the above configuration is described.

  A wire harness is folded in a U-shape and routed in the surplus length absorber, and one end of the wire harness is routed to the seat side via the protector, and the other end of the wire harness is routed from the front side of the surplus length absorber to the vehicle floor. Routed. The support is provided with wheels that engage the rails.

JP 2010-36609 A (FIGS. 1 and 3) JP 2006-246608 A (FIGS. 1 to 3) Japanese Patent Laying-Open No. 2011-57132 (FIGS. 1 to 6)

  Incidentally, in the seat slide device 55 as shown in FIG. 14, the rolling element 56 is omitted from the sliding protector in order to reduce the number of parts, and the side surface (lower surface) on the opposite side of the upper sliding contact piece 58 is the inner surface of the lower rail 52. It is possible to adopt a configuration in which the sliding contact is made. In such a configuration, the intersection of the width (the vertical dimension) of the lower rail 52 and the width of the sliding protector can be absorbed by the elasticity of the upper sliding contact piece 58. However, for example, when the lower inner surface of the lower rail 52 is not formed flat, a gap is formed between the lower surface of the sliding protector and the inner surface of the lower rail 52, and there is a possibility that looseness may occur during sliding. is there.

  This problem is not limited to the sliding seat of an automobile, for example, the power supply to the sliding door of the automobile, the sliding seat or sliding door of a vehicle other than the automobile, the sliding door of a device other than the vehicle such as an apparatus or a testing machine, etc. Even when a sliding protector is applied, it can occur in the same manner. These slide seats, slide doors, and the like are collectively referred to as a slide structure, and the vehicle body, the apparatus main body, and the like are collectively referred to as a fixed structure.

  An object of this invention is to provide the backlash prevention structure of the sliding protector which can suppress the backlash at the time of sliding in view of an above-described point.

  In order to achieve the above-mentioned object, the backlash prevention structure for a sliding protector according to claim 1 of the present invention is provided with a spring member on the sliding protector, and the sliding protector is slidably engaged with a guide rail, In the backlash prevention structure of the sliding protector that presses the spring member against the inner surface of the guide rail, the spring member has a convex portion that presses against the inner surface of the guide rail, and the sliding protector includes the spring member. Two projecting portions capable of contacting the inner surface of the guide rail are provided on the side surface opposite to the side surface on which the guide rail is provided.

  With the above configuration, since the spring member has a convex portion and two protrusions are provided on the side surface opposite to the side surface on which the spring member is provided, the sliding protector is provided with the convex portion of the spring member. And the two protrusions abut against the inner surface of the guide rail.

  The sliding protector backlash suppressing structure according to claim 2 is the sliding protector backlash suppressing structure according to claim 1, wherein the two protrusions are provided at both ends in the sliding direction on the opposite side surface. It is characterized by.

  With the above-described configuration, in the triangle formed by the convex portion of the spring member and the two protrusions, the bottom side connecting the two protrusions can be lengthened.

  According to a third aspect of the present invention, there is provided a backlash prevention structure for a slide protector according to the first or second aspect, wherein the slide support for supporting the slide structure is slidably engaged with the guide rail. The sliding protector is provided with a hook portion that can be hooked on the sliding support.

  With the above configuration, the sliding protector can be easily attached to the sliding support by hooking the hook portion, and the sliding protector can be driven by the sliding support when the sliding support is slid.

  A backlash prevention structure for a slide protector according to claim 4 is the backlash prevention structure for a slide protector according to claim 3, wherein the hook portion protrudes in a direction intersecting the sliding direction, and the sliding support body. Is characterized in that a concave receiving portion is formed on which the hook portion can be hooked.

  With the above configuration, the sliding protector can be attached to the sliding support by hooking the hooking portion of the sliding protector on the receiving portion of the sliding support.

  The backlash prevention structure of the sliding protector according to claim 5 is the backlash prevention structure of the sliding protector according to claim 3 or 4, wherein the sliding protector is on the other side of the side surface in the sliding direction. It has a contact part which can contact with the sliding support body which slides.

  With the above configuration, when the sliding support body slides to one side, the sliding protector is pulled to one side by being hooked on the sliding support body by the hooking portion. Further, when the sliding support body slides to the other side, the sliding support body is brought into contact with the contact portion, whereby the sliding protector is pushed to the other side.

  According to the first aspect of the present invention, the sliding protector contacts the inner surface of the guide rail at three points, so that even if the inner surface of the guide rail on the protrusion side is not formed flat, the contact at these three points is achieved. And the backlash against the guide rail when the sliding protector slides can be suppressed. At this time, it is more preferable that the two protrusions are provided on both sides of the protrusion in the sliding direction.

  According to the second aspect of the present invention, when the base of the triangle formed by the convex portion and the two projecting portions of the spring member is lengthened, for example, when the concave and convex portions are formed on the inner surface of the guide rail, the projection The inclination with respect to the guide rail of the whole sliding protector when a part passes this unevenness | corrugation can be made small. At this time, it is more preferable that the convex portion is provided at the central portion between the two protruding portions in the sliding direction.

  According to the third aspect of the present invention, since the backlash of the sliding protector relative to the guide rail is suppressed as described above, even if the sliding protector is attached to the sliding support with a simple configuration, the mounting structure Reliability can be ensured.

  According to the fourth aspect of the present invention, the hooking portion is hooked on the receiving portion, and the sliding protector can be attached to the sliding support body with a simple configuration.

  According to the fifth aspect of the present invention, the sliding protector can be driven regardless of whether the sliding support slides on one side or the other side in the sliding direction. At this time, when sliding to the other side, the sliding support is brought into contact with the abutting part and the sliding protector is pushed, so that the sliding protector is pushed to the other side by using the hook part. The sliding protector can be slid in a stable state.

It is a perspective view which shows one Embodiment of the sliding protector in this invention. It is a perspective view which shows a mode that the sliding protector was similarly seen from the other direction. It is a side view which similarly shows a sliding protector. It is a side view which shows the principal part of a sliding protector similarly. It is a side view which shows the play suppressing part of a sliding protector. It is a perspective view which shows the state which made the sliding protector slide-engaged with the guide rail with the sliding support body of the sheet | seat. It is a perspective view which shows the attachment structure to the sliding support body of the sliding protector in FIG. It is a perspective view which shows one Embodiment of the play prevention structure of a sliding protector. It is a cross-sectional view which shows the principal part of the play suppressing structure of a sliding protector. It is a longitudinal cross-sectional view which shows the play suppressing structure of a sliding protector. It is a perspective view which shows one Embodiment of the electric power feeder containing the sliding protector along a guide rail. (A), (b) is the schematic which shows the form of the spring member for backlash prevention of a sliding protector, and each modification example seen from a side surface. It is a side view which shows one form of the conventional slide apparatus for vehicle seats. It is a side view which shows one form of the backlash prevention structure of the conventional sliding protector. It is a side view which shows one form of the play suppressing part of the conventional sliding protector.

  FIGS. 1-11 shows one Embodiment of the play prevention structure of the sliding protector which concerns on this invention.

  As shown in FIGS. 1 to 3, the sliding protector 1 is made of a synthetic resin as a material, and a pair of left and right harness holding portions 2 and a central harness lead-out portion 4 that connects the lower portions of the inner side walls 3 a of the pair of harness holding portions 2. As shown in FIG. 4, a spring member 5 having a substantially W shape in a side view is provided on the top of each harness holding portion 2 to form a backlash suppressing portion 6.

  As shown in FIGS. 1 to 3, each harness holding portion 2 is composed of upper, lower, left and right wall portions, that is, a peripheral wall 3 whose outer peripheral surface is formed in a rectangular cylindrical shape and whose inner peripheral surface is formed in a circular or oval shape. The upper and lower and outer wall portions 3b to 3d are formed in a U-shaped cross section and can be divided with respect to the inner wall portion 3a. On the inner peripheral surface of the horizontal hole 7 on the inner side of the peripheral wall 3, there is a rib 7 a that engages a concave groove (valley) in the circumferential direction of a synthetic resin corrugated tube (protective tube) of a wire harness (not shown). Protrusions are formed.

  Each of the pair of harness holding portions 2 is formed with two protruding portions 30 protruding downward on the lower wall portion 3c, that is, on the side surface opposite to the side surface on which the spring member 5 is provided. Has been. These two protrusions 30 are provided at both ends in the sliding direction of the sliding protector 1. Further, the convex portion 5 a of the spring member 5 is disposed slightly rearward of the central portion between the two protruding portions 30 in the sliding direction. In addition, it is preferable that the convex part 5a is arrange | positioned in the center part between the two protrusion parts 30. FIG. Moreover, the two protrusions 30 may not be provided at both ends in the sliding direction.

  The end of each corrugated tube is assembled in the hole 7 of the harness holding portion 2 in a state where each harness holding portion 2 is divided into left and right, and the harness holding portion 2 is unitedly locked by the locking means 8 to corrugate tube. Hold.

  The hole 7 of each harness holding part 2 penetrates in the front-rear direction, and each electric wire (not shown) led out from the end of the corrugated tube of the wire harness is provided at the rear end of the harness holding part 2, for example. It is folded forward along the lower guide wall 9 and introduced into the harness lead-out portion 4 from the lower rear opening (not shown) of the central hollow harness lead-out portion 4. From the upper side opening 10, it is led out along the upper guide wall 11 and routed to the slide seat (not shown). The upper opening of the harness lead-out portion 4 is closed with a cover 12.

  A pair of guide walls 9 provided corresponding to each of the pair of harness holding portions 2 are formed with hook portions 91 that protrude so as to face each other. That is, these hooking portions 91 extend in a direction substantially orthogonal to the sliding direction of the sliding protector 1.

  The harness lead-out portion 4 includes left and right vertical and wide walls 4a and 4b, front and rear vertical and narrow walls 4c and 4d, front and left and right bottom walls 4e and 4f, and an upper cover 12. The hem walls 4e and 4f are integrally connected to a left and right horizontal connecting wall 4g connecting the pair of left and right harness holding portions 2 and a front inclined connecting wall 4h. The cover 12 is locked to the wall 4a by the locking means 12a.

  As shown in FIG. 4, a concave groove portion 15 is formed in the horizontal upper wall 3b behind the middle in the longitudinal direction of each harness holding portion 2, and the concave groove portion 15 is perpendicular to the horizontal long bottom wall surface (bottom surface) 15a. It consists of a short inner wall surface (inner surface) 15b, and the front and rear ends of a substantially W-shaped spring member 5 in a side view are integrally connected to the upper ends of the front and rear inner wall surfaces 15b.

  The spring member 5 is formed of a synthetic resin plate integrally with the harness holding portion 2, and has a curved convex portion (mountain portion) 5a at the center and curved concave portions (reverse convex portions or trough portions) 5b on both front and rear sides. Are formed in a side view or a substantially W-shaped longitudinal section.

  The curved convex portion 5a at the center in the longitudinal direction of the spring member 5 protrudes higher than the front and rear end portions 5c upward (projects higher than the upper wall surface 3b of the harness holding portion 2 in the dimension of the depth of the concave groove portion 15). The curved concave portion 5b between the curved convex portion 5a and the front and rear end portions 5c protrudes in a downward convex shape lower than the front and rear end portions 5c. The boundary portion (connecting portion) between the curved convex portion 5a and the curved concave portion 5b continues smoothly without a step. The bending radius of the curved convex portion 5a is smaller than the bending radius of the curved concave portion 5b. The curved convex portion 5a is formed symmetrically with the upper arc-shaped top portion and the front and rear inclined portions, and the front and rear curved concave portions 5b each have an arc-shaped lowermost portion and front and rear inclined portions. Are arranged symmetrically.

  The front and rear curved concave portions 5b are arranged so that the portion following the curved convex portion 5a is high (the height is about the same as or higher than the upper wall surface 3b of the harness holding portion 2), and the front and rear end portions 5c. The part following is placed low. End portions 5c of the front and rear concave portions 5b are substantially horizontally following the front and rear inner wall surfaces 15b of the concave groove portion 15, the front and rear end portions 5c are positioned symmetrically, and the upper surfaces of the front and rear end portions 5c are above the harness holding portion 2. It is located on the same horizontal plane as the end face 3b. A sufficient gap (a gap that is about half the depth of the groove 15) 15 c is formed between the lower ends of the front and rear curved recesses 5 b and the bottom wall surface 15 a of the groove 15.

  As shown in FIG. 1, the lateral width (horizontal width) of the spring member 5 is slightly smaller than the lateral width of the bottom wall surface 15a (FIG. 4) of the recessed groove portion 15, and is formed with a uniform width over the entire length in the front-rear direction. . As shown in FIG. 4, the plate thickness of the spring member 5 is about 1/3 to 1/4 of the depth of the recessed groove portion 15. The length of the central curved convex portion 5a (length in the front-rear direction) is approximately the same as the length of the front and rear curved concave portions 5b.

  As shown in FIG. 3, the curved convex portion 5 a at the center of the spring member 5 protrudes upward to the same height as the lower end of the side wall 4 a of the harness lead-out portion 4 of the sliding protector 1 (upper end of the bottom wall 4 f). Yes. As shown in FIG. 4, the lowermost end 5 b ′ of the curved concave portion 5 b before and after the spring member 5 protrudes downward to a position of about ½ of the depth of the concave groove portion 15. The spring member 5 and the recessed groove portion 15 constitute a backlash suppressing portion 6.

  By slidingly engaging the sliding protector 1 with the guide rail (seat rail) 16 on the vehicle floor side in FIG. 6, the spring member 5 in FIG. 5 bends downward as indicated by the dotted line from the free state position indicated by the solid line. , Deformed into a clearer W shape than in the free state. The dotted line in FIG. 5 indicates the approximate center position of the plate thickness of the spring member 5. At the time of deformation indicated by a dotted line, the curved convex portion 5a at the center of the spring member 5 protrudes higher than the upper wall surface 3b of the harness holding portion 2, and the front and rear curved concave portions 5b contact the bottom wall surface 15a of the groove portion 15 ( Contact) or a slight gap.

  A state in which rattling is suppressed by connecting the spring member 5 that suppresses the backlash in the vertical direction of the sliding protector 1 to the guide rails 16 (FIG. 6) on the vehicle floor by the curved portions 5 a and 5 b in opposite directions, respectively. Thus, the stress acting on the spring member 5 is dispersed, and the spring member 5 can be disposed in a compact and space-saving manner with a total length L in the longitudinal direction with respect to the required deflection stroke S. The necessary deflection stroke S is a deflection stroke necessary for suppressing the vertical play of the sliding protector 1 with respect to the guide rail 16 (FIG. 6).

  For example, in the conventional spring member 41 having an arc shape when viewed from the side shown in FIG. 15, the total length L2 of the spring member 41 tends to be long in order to obtain the necessary deflection stroke S2, but the spring member of the embodiment of FIG. Reference numeral 5 denotes a curved convex portion 5a at the center in the longitudinal direction, which presses against the upper inner surface (inner surface) 16a of the guide rail 16 (FIG. 6), and distributes the pressing force (stress) to the front and rear curved concave portions 5b. By doing so, the full length L of the spring member 5 is made shorter than the full length L2 of the conventional spring member 41 of FIG. 15 while exhibiting a reliable pressing force against the guide rail 16.

  Even if the total length of the spring member 5 in the unfolded state (L or more) is the same as the total length L2 of the conventional spring member 41 of FIG. 15, the spring member 5 has an uneven shape (W shape) as shown in FIG. By bending, the total length L of the spring member 5 is shortened. Since the curved convex portion 5a at the center of the spring member 5 is supported by the front and rear concave portions 5b curved in the opposite directions, the inclination (curved) angle of the curved convex portion 5a is the conventional spring member of FIG. It is larger than the inclination (curving) angle of 41 and exhibits a large elastic force when bent compared to the conventional spring member 41 of FIG.

  When the lower end surface 5b ′ of the front and rear curved concave portions 5b is brought into contact with the bottom wall surface 15a of the concave groove portion 15 when the spring member 5 is bent, the central curved convex portion 5a is the front and rear curved concave portions. Since the lower end 5b ′ of 5b bends downward and presses against the upper inner surface 16a of the guide rail 16 (FIG. 6), the curved convex portion 5a is formed in comparison with the conventional arc-shaped long spring member 41 of FIG. A large elastic force (pressing force) is demonstrated with a short length. Therefore, when the uneven spring member 5 is set to have the same spring force as that of the conventional spring member 41 of FIG. 15, the lateral width of the uneven spring member 5 is set to be small. The downsizing in the width direction can be achieved.

  Further, the conventional spring member 41 having an arc shape in a side view in FIG. 15 requires a stopper wall 42 for preventing a reverse warp on the lower side, but the spring member 5 in FIG. 5b abuts against the horizontal bottom wall surface 15a of the groove 15 so that the stopper wall 42 for preventing the reverse warp is unnecessary (the stopper wall 42 is unnecessary because it does not reverse warp). The deflection stroke S can be earned.

  Further, when the spring member 5 is bent, the stress of the spring member 5 is evenly distributed in the longitudinal direction of the spring, so that the durability of the spring member 5 is enhanced. Further, the curved convex portion 5a at the center of the spring member 5 is brought into contact with the upper inner surface 16a of the guide rail 16 (FIG. 6) in a curved shape (contacted by surface contact close to line contact), thereby guiding the guide rail. Even if the sliding direction of the sliding protector 1 with respect to 16 is reversed, the sliding resistance is always maintained at the same level, and smooth sliding without catching or the like is possible. The pressing force of the spring member 5 against the guide rail 16 can be set as appropriate by appropriately changing the plate thickness of the spring member 5.

  As shown in FIG. 6, the front synthetic resin sliding protector 1 and the rear seat side metal sliding support 17 are slidable integrally with a horizontal metal guide rail 16 on the vehicle floor side. Engage. In FIG. 6, for the sake of convenience, only a part of the guide rail 16 in the longitudinal direction is illustrated (actually longer). The sliding protector 1 is connected to the front end portion 17 a of the sliding support 17. The sliding support 17 is connected and fixed to a lower portion of a slide sheet (not shown) as a slide structure.

  Here, a connection structure between the sliding protector 1 and the sliding support 17, that is, a mounting structure of the sliding protector 1 to the sliding support 17 will be described. As shown in FIG. 7A, a concave receiving portion 171 on which the hook portion 91 can be hooked is formed on the upper surface on the front side of the sliding support body 17. The size of the receiving portion 171 in the sliding direction is larger than the size of the hooking portion 91 in the sliding direction so that the hooking portion 91 can be easily hooked. The depth of the receiving portion 171 is formed substantially equal to the vertical dimension of the hook portion 91. Further, the sliding protector 1 is formed with an abutting portion 40 on the rear side surface in the sliding direction, on which the front end surface 172 of the sliding support 17 can abut. As shown in FIG. 7B, the sliding protector 1 is attached to the sliding support 17 by hooking the hooking portion 91 on the receiving portion 171.

  According to such an attachment structure, when the sliding support 17 slides to the rear side in the sliding direction, the hooking portion 91 is hooked on the receiving portion 171, whereby the sliding protector 1 is pulled to the rear side. . On the other hand, when the sliding support body 17 slides to the front side in the sliding direction, the front end surface 172 of the sliding support body 17 comes into contact with the contact portion 40, whereby the sliding protector 1 is pushed forward. Therefore, the sliding protector 1 can be attached to the sliding support 17 and driven by a simple configuration. Moreover, since the backlash with respect to the guide rail 16 of the sliding protector 1 is suppressed so that it may mention later, even if it attaches with a simple structure, the reliability of an attachment structure is securable.

  As shown in FIGS. 8 and 9, the guide rail 16 includes an upper wide portion 18 and a lower narrow portion 19, and the upper wide portion 18 has a slit 20 at the center in the width direction and left and right groove portions 21. The left and right groove portions 21 are surrounded by a vertical outer wall portion 18a, upper and lower horizontal wall portions 18b and 18c, and an inner wall portion 18d suspended from the upper wall portion 18b. An inner opening 18e that communicates the central slit 20 and the groove 21 is provided below the portion 18d. The lower narrow portion 19 communicates with the slit 20 and is formed in a downward convex shape. The bottom wall 19a of the narrow portion 19 has a hole (not shown) for fixing to the vehicle floor.

  A pair of left and right harness holding portions 2 of the sliding protector 1 are inserted into the left and right groove portions 21 of the guide rail 16, and the skirt portions 4 e and 4 f of the harness lead-out portion 4 raised at the center of the sliding protector 2 are guide rails 16. The harness lead-out body 4 is disposed so as to protrude above the slit 20.

  Each spring member 5 formed on the upper wall 3 b side of each harness holding portion 2 is in slidable and elastic contact with the upper inner surface 16 a of each of the left and right groove portions 21 of the guide rail 16. A small circular protrusion 5a ′ for contact is provided on the top surface of the upward curved convex portion 5a in the center of the spring member 5 of this example. The spring member 5 in FIG. 9 is shown in a free state (a state before bending).

  9, reference numeral 3a denotes an inner wall of the harness holding portion 2, reference numeral 4g denotes a connecting wall, and reference numeral 24 denotes a roller described later. The sliding protector 1 of the example of FIGS. 6-11 has the opening 10 for the harness derivation | leading-out of the left side surface 4d of the sliding protector 1 of FIG. 1, and the guide part 11 in the right side surface 4b (FIG. 1 and FIG. 8 is for the right and left seats of the vehicle).

  Rollers 24 provided on the left and right lower side surfaces of the sliding support 17 are rotatably in contact with the upper and lower inner wall surfaces 16 a and 18 c of the left and right groove portions 21 of the guide rail 16. In front of the roller 24, the curved convex portion 5 a at the center of each of the left and right spring members 5 of the sliding protector 1 is in elastic contact with the upper inner wall surface 16 a of the groove portion 21 of the guide rail 16. In FIG. 9, the spring member 5 shows its free state (state before bending). A pair of left and right rollers 24 of the sliding support 17 are also arranged on the rear side (not shown).

  Here, the details of how the sliding protector 1 comes into contact with the guide rail 16 will be described. The sliding protector 1 contacts the upper inner wall surface 16a at the convex portion 5a of the spring member 5, and also contacts the lower inner wall surface 18c at the two protrusions 30 as shown in FIG. That is, the sliding protector 1 abuts on the guide rail 16 at three points, and has a triangular abutment point formed by the convex portion 5 a and the two projecting portions 30.

  Therefore, even when the inner wall surface 18c of the guide rail 16 is not flat (for example, when unevenness is formed or wavy), the triangular contact point can be maintained, and sliding The backlash with respect to the guide rail 16 at the time of the protector 1 sliding can be suppressed. At this time, since the two protrusions 30 are provided at both ends in the sliding direction of the wall 3c, the base of the triangle formed by the contact point can be lengthened, and the protrusion 30 is formed on the inner wall 18c. When passing through the unevenness or the like, the inclination of the entire slide protector 1 with respect to the longitudinal direction of the guide rail 16 can be reduced.

  As shown in FIG. 11, left and right moldings 25 for preventing dust intrusion are arranged on the upper side of the guide rail 16 on the vehicle floor, and the power feeding device 26 is combined along the guide rail 16 by wrapping on the lower side of the one molding 25. A resin or metal wire receiving portion 27 is disposed. The electric wire housing portion 27 is composed of a horizontally long straight portion 28 and a wide semicircular portion 29 disposed on the front end side thereof, and the rear opening 29 a on the other side of the semicircular portion 29 is a front opening of the guide rail 16. Communicating with

  A wire harness (not shown) is folded and accommodated in a U-shape in the straight portion 28 of the electric wire accommodating portion 27 (the folded portion is disposed rearward), and one of the wire harnesses is curved in a backward direction at a semicircular portion 29. The other end of the wire harness is led out from the lead-out portion 29b on the upper side of the semicircular portion 29, and is routed from the slide protector 1 to the slide seat (not shown). Routed along. The sliding protector 1, the electric wire housing portion 27, and the wire harness constitute a power feeding device 26.

  As the slide sheet (not shown) advances and retracts, the slide protector 1 advances and retracts integrally with the slide support 17 connected to the sheet. When the seat is retracted, the wire harness is receding linearly in the guide rail 16 integrally with the sliding protector 1, the wire harness in the straight portion 28 of the wire accommodating portion 27 is shortened, and the seat is advanced In addition, the wire harness moves forward in the guide rail 16 integrally with the sliding protector 1, and the wire harness in the straight portion 28 of the wire accommodating portion 27 extends. The electric wire accommodating part 27 acts as a harness surplus length absorbing part.

  When the sliding protector 1 receives a vertical force due to the movement of the seat, or due to vibrations while the vehicle is running, the curved spring member 5 absorbs the vertical force with a reliable deflection stroke. Thus, the upper and lower rattling of the sliding protector 1 is suppressed. Thereby, generation | occurrence | production of abrasion, abnormal noise, etc. of the sliding protector 1 is prevented.

Figure 12 (a) shows an overview of the form of the spring member 5, FIG. 12 (b) illustrates 12 an outline of the spring member 5 ₂ variations to the spring member 5 (a), respectively.

A spring member 5 of FIG. 12 (a), whereas is composed of a central curved convex portion 5a and the front and rear curved recess 5b, the spring member 5 ₂ in FIG. 12 (b), the front The curved convex portion 5a and the rear curved concave portion 5b. 12 the spring member 5 ₂ (b), may be constituted by a curved convex portion 5a of the front curved recess 5b and the rear side of the.

The curved convex portion 5a at the center of the spring member 5 in FIG. 12A smoothly contacts the inner surface of the guide rail 16 in FIG. 6 with a small sliding frictional resistance at a single point contact. Similarly, curved convex portion 5a of the front side of the spring member 5 ₂ in FIG. 12 (b) is in sliding contact with the smooth with small sliding frictional resistance at a point contact with the inner surface of the guide rail 16.

  When the harness holding part 2 having the spring member 5 of FIG. 12A reciprocates back and forth along the guide rail 16 (FIG. 6), the bending of the curved convex part 5a at the center of the spring member 5 is performed. Is uniformly absorbed by the curved concave portions 5b on both the front and rear sides, and smooth movement in both the front and rear directions is possible.

In contrast, the harness holding portion 2 ₁ having a spring member 5 ₂ in FIG. 12 (b), at a time of moving the time and backward to move forward along the guide rail 16 (FIG. 6), front curve of There is a concern that the sliding feeling may slightly change due to the change in the behavior of the convex protrusion 5a and the curved concave recess 5b on the rear side. Since the curved concave portion 5b is positioned adjacent to the curved concave portion 5b, there is no difference in that the curved concave portion 5b reliably absorbs the bending of the curved convex portion 5a during sliding, and there is no problem in practical use. The spring member 5 ₂ consists in one of the curved convex 5a portions and one curved recess 5b, in one of the curved convex portion 5a and two curved recess 5b shown in FIG. 12 (a) The overall length is shorter than that of the spring member 5 and the size is reduced.

  In the above embodiment, as the structure for attaching the sliding protector 1 to the sliding support 17, the two hooking portions 91 extending so as to face each other are hooked on the receiving portion 171. The structure is not limited to such a configuration. For example, the hooking part only has to protrude in an arbitrary direction intersecting the sliding direction, and may protrude in the vertical direction. Moreover, the concave receiving part may not be formed on the sliding support 17, and the hooking part may be hooked on an appropriate part such as a step of the sliding support. Further, the sliding protector 1 does not need to have the abutting portion 40. For example, the hooking portion and the concave portion fit with each other having substantially the same sliding direction dimension, and the hooking portion 91 is slidably supported. The structure which the sliding protector 1 follows by being pushed by the body 17 may be sufficient.

  The sliding protector backlash suppressing structure according to the present invention is such that the sliding protector on the slide structure side such as a slide seat is slidably engaged with the guide rail on the fixed structure side such as the vehicle body. It can be used to make the holding part compact, and in addition to that, the sliding protector can be surely held back.

DESCRIPTION OF SYMBOLS 1 Sliding protector 5 Spring member 5a Convex part 16 Guide rail 30 Protrusion part 91 Hook part 171 Receiving part 40 Contact part 17 Sliding support body

Claims (5)

In the sliding protector backlash prevention structure in which a spring member is provided on the sliding protector, the sliding protector is slidably engaged with the guide rail, and the spring member is pressed against the inner surface of the guide rail.
The spring member has a convex portion that presses against the inner surface of the guide rail;
The sliding protector is provided with two protrusions capable of contacting the inner surface of the guide rail on the side surface opposite to the side surface on which the spring member is provided. The backlash control structure.   The backlash prevention structure for a sliding protector according to claim 1, wherein the two protrusions are provided at both ends in the sliding direction on the opposite side surface. A sliding support that supports the slide structure is slidably engaged with the guide rail,
3. The sliding protector play back restraining structure according to claim 1, wherein the sliding protector is provided with a hooking portion that can be hooked on the sliding support. The hook portion protrudes in a direction intersecting the sliding direction;
The back support structure for a sliding protector according to claim 3, wherein the sliding support is formed with a concave receiving portion on which the hook portion can be hooked.   The said sliding protector has a contact part which can contact | abut the said sliding support body which slides to the other side in the side surface of the one side in the said sliding direction. The backlash prevention structure of the sliding protector.

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