JP2014043696A - Guide rail for wire type window regulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guide rail for a wire type window regulator in which strength can be provided effectively even in a resin material that is reduced as much as possible, and further, movement of a wire is prevented from being disturbed.SOLUTION: A guide rail 2 comprises a front face 20 and a rear face 22, and both end portions 24, 26 in a length direction of the guide rail 2 receive power from wires 13, 14. At a side of the front face 20 between both the end portions 24, 26, a move area 16 of the wires 13, 14 moving together with a slider base 6 is provided. On the rear face 22, a plurality of ribs are disposed to extend in a plurality of directions. The front face 20 includes a rib area 57 in which a plurality of ribs are disposed, and a non-rib area 59 which is formed next to the rib area 57 along a length direction, and the move area 16 is configured in the non-rib area 59.

Description

  The present invention relates to a guide rail for a wire type window regulator that raises and lowers a window glass provided on a moving body such as a vehicle. More specifically, the present invention relates to a guide rail used in a wire type window regulator that moves a slider base through a wire to raise and lower a window glass attached to the slider base.

  As described in Patent Documents 1 to 7, this type of wire-type window regulator is widely known and is used for raising and lowering a window glass of a vehicle. For example, the guide rail described in Patent Document 1 is provided with wire guide portions at both ends in the longitudinal direction, and a part of the wire is movably disposed on the guide rail surface side between the wire guide portions.

  Such conventional guide rails are generally made of metal.

JP 2011-12469 A JP 2012-57425 A JP 2011-69059 A JP 2012-92574 A JP 2003-2104030 A JP 2007-56501 A JP 2004-116074 A

  By the way, in order to improve fuel consumption, weight reduction of components mounted on a vehicle is being promoted, and as one of the methods for that purpose, changing the material from metal to resin is being studied. However, if the resin component has the same shape as the metal component, the strength required for the component may not be ensured. Further, if the resin amount is increased to increase the wall thickness in order to ensure strength, there may be cases where sufficient weight reduction cannot be achieved. On the other hand, if the rib is simply provided to improve the strength when the resin is made, the wire moving on the surface side of the guide rail may even interfere with the rib.

  In this respect, Patent Documents 1 to 7 have not studied at all about resination of the guide rail, and there is much room for improvement.

  An object of the present invention is to provide a guide rail that can effectively provide strength even with as little resin material as possible and does not hinder the movement of the wire.

  As a result of investigation by the inventor by FEM analysis, the present inventor has completed the present invention capable of solving the above problems.

  That is, the resin guide rail of the present invention has a front surface and a back surface, and both ends in the longitudinal direction of the guide rail receive a force from the wire, and the surface side between the both ends. In addition, the back surface is arranged such that a plurality of ribs extend in a plurality of directions, and the front surface is formed along the longitudinal direction. And a non-rib region that is formed along the longitudinal direction next to the rib region and in which no rib is arranged, and of the rib region and the non-rib region, the non-rib region includes the rib region. The moving area is configured.

  According to the present invention, it is possible to achieve both the improvement in strength and the prevention of movement of the wire on the surface. That is, the surface is improved in strength by the rib configuration in the rib region, and the movement of the wire is not interfered with the rib configuration in the non-rib region. In particular, since the rib region is formed along the longitudinal direction, it is easy to ensure a certain degree of strength in the longitudinal direction where the compressive load from the wire acts. Further, since the wire moving region is formed in the non-rib region formed along the longitudinal direction, the movement of the wire moving in the longitudinal direction is not hindered. Moreover, since the rib region and the non-rib region are adjacent to each other on the surface, and no unnecessary region is provided between them, the surface does not have to be enlarged more than necessary. In addition, with respect to the back surface, the strength against loads from a plurality of directions can be efficiently improved by the plurality of ribs. With the configuration of the front surface and the back surface as described above, the strength of the guide rail is effectively and synergistically improved, and the strength of the guide rail can be ensured even when the smallest possible resin material is used. At the same time, the movement of the wire can be prevented from being hindered.

  Preferably, the plurality of ribs in the rib region includes two longitudinal ribs extending in the longitudinal direction between both ends, and a plurality of short ribs connecting the two longitudinal ribs between the two longitudinal ribs. Good.

  According to such a configuration, the longitudinal direction in which the compressive load acts is supported by the longitudinal ribs, and the space between the longitudinal ribs is supported by the short ribs, so that the strength in the longitudinal direction can be improved efficiently. it can.

  More preferably, the plurality of short ribs may be formed in a zigzag shape.

  According to this configuration, since it is reinforced like a truss structure, for example, the strength of the rib region can be greatly improved as compared to a plurality of short ribs extending only in one direction. In particular, it is useful in that the strength against a compressive load acting in the longitudinal direction can be improved with a small amount of resin material.

  More preferably, the guide rail is formed with a plurality of mounting holes for mounting a power unit for transmitting power to the wire, and the plurality of ribs in the rib region extend from one of the two longitudinal ribs, but the other It may have at least one arc rib spaced apart. The at least one arc rib is formed so as to surround at least one of the plurality of mounting holes, and the plurality of short ribs connect the two long ribs to each other via the at least one arc rib and form a zigzag shape. It is good to be formed.

  According to this configuration, even if there is an attachment hole that tends to lower the strength in the rib region for improving the strength, the vicinity of the attachment hole can be reinforced with the arc rib. Moreover, since the short rib, the arc rib and the long rib are connected to each other, the reinforcing effect by the rib configuration can be enhanced.

  More preferably, the plurality of mounting holes include two first mounting holes formed in the rib region and a second mounting hole formed in the non-rib region, and at least one arc rib. May have two arc ribs formed so as to surround the two first mounting holes, respectively.

  According to this configuration, it is possible to reinforce the vicinity of each of the two first attachment holes that are likely to reduce the strength with the arc ribs while securing the three-point stop of the power unit with respect to the guide rail.

  More preferably, the second mounting hole may be located between the two first mounting holes.

  According to this configuration, three points can be stopped with good balance. Moreover, the influence of the strength fall by the 2nd attachment hole can be suppressed to the minimum.

  Preferably, the second mounting hole may be positioned approximately in the middle in the longitudinal direction of the guide rail.

  According to this configuration, it is possible to obtain a well-balanced intensity distribution for the entire guide rail.

  Preferably, a plurality of first raised portions each having a plurality of attachment holes in the center are formed on the back surface, and the plurality of ribs on the back surface include a plurality of first raised portions that connect the plurality of first raised portions. It is good to have the 1st connecting rib.

  According to this configuration, the strength can be increased by changing the shape on the back surface (first raised portion) in the vicinity of the attachment hole where the strength is likely to be reduced. Moreover, since the 1st protruding part is mutually connected by the 1st connection rib, the reinforcement effect by a 1st protruding part and the reinforcement effect by a rib structure can improve intensity | strength synergistically.

  More preferably, the plurality of ribs on the back surface may include a plurality of second connecting ribs that connect both end portions extending in the longitudinal direction of the guide rail and the plurality of first raised portions.

  According to this structure, the both ends extended in the longitudinal direction of a guide rail can be connected using a 1st protruding part etc.

  Preferably, a plurality of fixing holes for fixing the guide rail to the door panel are formed in the guide rail, and a plurality of second raised portions each having the plurality of fixing holes in the center are formed on the back surface. The plurality of ribs formed on the back surface may include a plurality of third connecting ribs that connect the plurality of second raised portions to the plurality of first raised portions.

  According to this configuration, even in the vicinity of the fixing hole where the strength is easily lowered, the strength is increased by the second raised portion, and the reinforcing effect by the first and second raised portions and the reinforcing effect by the rib configuration are synergistic. Strength can be improved.

  More preferably, the plurality of fixing holes may be formed in a non-rib region on the surface.

  Preferably, the two longitudinal ribs may be connected to each other in the longitudinal direction.

  According to this configuration, the strength can be further improved.

  Preferably, the plurality of ribs on the back surface may include a drum surrounding rib for surrounding a drum around which the wire is wound so as to be fed and wound.

  According to this configuration, the strength can be increased by effectively using the drum surrounding rib.

  Preferably, the resin forming the guide rail is polyamide, polyacetal, polyethylene, polypropylene, polyvinyl chloride, polystyrene, ABS resin, AS resin, acrylic resin, polycarbonate, modified polyphenylene ether, polybutylene terephthalate, polyethylene terephthalate, polysulfone, polyphenylene. Examples include sulfide, polyether ether ketone, polyimide, polyether imide, fluororesin, liquid crystal polymer, phenol resin, epoxy resin, melamine resin, urea resin, unsaturated polyester resin, alkyd resin, and polyurethane. Further, for the purpose of improving heat resistance, mechanical strength, etc., an inorganic or organic filler can be added to the thermoplastic resin as necessary. Suitable fillers include glass fiber, carbon fiber, metal fiber, aramid fiber, potassium titanate, asbestos, silicon carbide, ceramic, silicon nitride, barium sulfate, calcium sulfate, kaolin, clay, pyrophyllite, bentonite, Sericite, zeolite, mica, mica, nepheline cinteite, talc, atarpulgite, wollastonite, PMF, ferrite, calcium silicate, calcium carbonate, magnesium carbonate, dolomite, zinc oxide, titanium oxide, magnesium oxide, iron oxide And reinforcing fillers such as molybdenum disulfide, graphite, gypsum, glass beads, glass balloons, quartz, and quartz glass, which may be hollow. These reinforcing fillers can be used in combination of two or more, and can be used after pretreatment with a coupling agent such as silane or titanium if necessary. Desirably, a glass fiber of polyamide 66 is added at 30% by weight. By doing so, it is possible to achieve an effect (for example, a good balance between strength, formability, and cost) suitable for the application of the part called the guide rail.

It is the perspective view which looked at the wire type window regulator which concerns on embodiment from the surface side. It is the perspective view which looked at the wire type window regulator of FIG. 1 from the back surface side. It is sectional drawing cut | disconnected by the AA line of FIG. It is the perspective view which looked at the guide rail used for the wire type window regulator of FIG. 1 from the surface side. It is the perspective view which looked at the guide rail of FIG. 3 from the back surface side. It is a front view of the guide rail of FIG. It is a rear view of the guide rail of FIG. It is a left view of the guide rail of FIG. It is a right view of the guide rail of FIG. It is a top view of the guide rail of FIG. It is a bottom view of the guide rail of FIG.

  A preferred embodiment of the present invention will be described with reference to the accompanying drawings. Below, the wire type window regulator which raises / lowers the window glass of a vehicle is demonstrated to an example. It should be noted that the terms relating to the upper and lower positions used in the following description are based on FIG.

  As shown in FIGS. 1 to 3, the wire type window regulator 1 includes a long guide rail 2 that is curved in an arc shape as a whole, a pulley 3 that is pivotally supported on the upper end of the guide rail 2, and a guide rail 2. A wire guide portion 4 formed at the lower end portion, a power unit 5 provided in an upper and lower intermediate portion on the back side of the guide rail 2, a slider base 6 guided by the guide rail 2 on the opposite side of the power unit 5, It has. The power unit 5 includes a motor 11 that can rotate forward and reverse, and a drum 12 that is coupled to the output shaft of the motor 11 via a speed reduction mechanism. On the circumferential surface of the drum 12, two upper and lower wires 13, 14 are wound so as to be able to be fed and wound. In this case, when the drum 12 is rotated in one direction, the wires 13 and 14 are wound around the drum 12 so that the wires 13 and 14 are wound in the opposite directions so that the wire 13 is fed out of the drum 12 and wound around the drum 12. It has been turned. In the wire 13, a feeding portion from the drum 12 is wound around the pulley 3 and the direction thereof is changed downward, and a leading end portion of the wire 13 is connected to the slider base 6. Similarly, in the wire 14, the feeding portion from the drum 12 is redirected upward via the wire guide portion 4, and the feeding tip portion is connected to the slider base 6. The slider base 6 is attached to the window glass W of the vehicle via screws or the like on a pair of attachment portions 8 and 8 on both sides of the guide rail 2. The slider base 6 moves along the longitudinal direction of the guide rail 2 while being in sliding contact with the rail portion 54 formed at the end 2b along the longitudinal direction of the guide rail 2, so that the window glass W moves up and down. . In FIG. 3, the wires 13 and 14 are omitted.

  In such a wire type window regulator 1, the drum 12 is rotated by driving the motor 11, one of the wires 13 and 14 is paid out, and the other is taken up. In this way, the wires 13 and 14 move when the power from the motor 11 is transmitted. Then, the movement of the wires 13 and 14 causes the slider base 6 connected to the wires 13 and 14 to move upward or downward along the guide rail 2, and the window glass 9 together with the slider base 6 moves relative to the vehicle door. Will go up and down.

  Here, about the delivery part of the wires 13 and 14 from the drum 12, about half is located on the side of the end portion 2a along the longitudinal direction of the guide rail 2, and the direction is changed by the pulley 3 and the wire guide portion 4. About half of the remaining half is on the surface 20 side of the guide rail 2. The feeding portions 13 a and 14 a on the surface 20 side are arranged in parallel with the rail portion 54 of the guide rail 2, and move together with the slider base 6 by driving the motor 11. That is, on the surface 20 side of the guide rail 2, a moving region 16 of the feeding portions 13 a and 14 a that moves together with the slider base 6 is formed between the pulley 3 and the wire guide portion 4. Further, the upper end portion and the lower end portion (that is, both end portions in the longitudinal direction) of the guide rail 2 receive a force (compressive load in the longitudinal direction) from the wires 13 and 14 via the pulley 3 and the wire guide portion 4. It has become.

  Next, the guide rail 2 will be described in detail.

  As the material of the guide rail 2, polyamide, polyacetal, polyethylene, polypropylene, polyvinyl chloride, polystyrene, ABS resin, AS resin, acrylic resin, polycarbonate, modified polyphenylene ether, polybutylene terephthalate, polyethylene terephthalate, polysulfone, polyphenylene sulfide, Examples include polyether ether ketone, polyimide, polyether imide, fluororesin, liquid crystal polymer, phenol resin, epoxy resin, melamine resin, urea resin, unsaturated polyester resin, alkyd resin, and polyurethane. Further, for the purpose of improving heat resistance, mechanical strength, etc., an inorganic or organic filler can be added to the thermoplastic resin as necessary. Suitable fillers include glass fiber, carbon fiber, metal fiber, aramid fiber, potassium titanate, asbestos, silicon carbide, ceramic, silicon nitride, barium sulfate, calcium sulfate, kaolin, clay, pyrophyllite, bentonite, Sericite, zeolite, mica, mica, nepheline cinteite, talc, atarpulgite, wollastonite, PMF, ferrite, calcium silicate, calcium carbonate, magnesium carbonate, dolomite, zinc oxide, titanium oxide, magnesium oxide, iron oxide And reinforcing fillers such as molybdenum disulfide, graphite, gypsum, glass beads, glass balloons, quartz, and quartz glass, which may be hollow. These reinforcing fillers can be used in combination of two or more, and can be used after pretreatment with a coupling agent such as silane or titanium if necessary. Among these, from the viewpoint of good balance of strength, moldability, and cost, it is preferable to use a polyamide 66 glass fiber added by 30% by weight.

  As shown in FIGS. 4 to 11, the guide rail 2 is a long member having a front surface 20 and a back surface 22, and both end portions 24 and 26 in the longitudinal direction receive force from the wire. A disc-shaped wire guide portion 25 that rotatably supports the pulley 3 is formed at the upper end portion 24 of the guide rail 2. Further, a semicircular arc-shaped wire guide portion 4 that protrudes downward is formed at the lower end portion 26 of the guide rail 2. These wire guide portions 25 and 4 are formed so as to protrude from the surface 20. On the other hand, on the back surface 22, a circular rib 29 is formed so as to protrude at a position where the wire guide portion 25 exists, and a part of the circular rib 29 is located at and connected to the end 2 a of the guide rail 2.

  Further, two fixing holes 30 and 32 are formed in the guide rail 2 in the vicinity of the wire guide portions 25 and 4, respectively. The fixing holes 30 and 32 are located on a line parallel to the longitudinal direction of the guide rail 2 and are used to fix the guide rail 2 to the door inner panel of the vehicle body. That is, the guide rail 2 is fixed to the door inner panel by the fasteners fitted in the fixing holes 30 and 32. The fixing holes 30 and 32 are formed in the form of counterbore holes when viewed from the surface 20 side, so that the heads of the fasteners fitted thereto do not protrude from the surface 20. Further, on the back surface 22 side, raised portions 34 and 36 (second raised portions) each having a fixing hole 30 and 32 at the center are formed. The raised portions 34 and 36 are raised from the back surface 22 in a substantially circular cup shape, and a part thereof is located at and connected to the end 2 b along the longitudinal direction of the guide rail 2.

  Further, the guide rail 2 is formed with three attachment holes 40, 42, and 44 penetratingly formed in the central portion in the longitudinal direction. The attachment holes 40, 42, 44 are arranged so as to constitute the apexes of a substantially equilateral triangle, and are used to attach the power unit 5 to the guide rail 2. That is, the power unit 5 is attached to the guide rail 2 by fasteners fitted in the attachment holes 40, 42, 44. The attachment holes 40 and 42 are formed near the end 2 a of the guide rail 2 and are located on a line parallel to the longitudinal direction of the guide rail 2. The attachment hole 44 is located between the attachment holes 40 and 42 and is located approximately in the middle in the longitudinal direction of the guide rail 2. On the back surface 22 side, raised portions 50, 52, and 54 (first raised portions) having attachment holes 40, 42, and 44 in the center are formed, and the raised portions 50, 52, and 54 are formed from the back surface 22. It is raised like a dome.

  Next, the rib configuration on the front surface 20 and the back surface 22 of the guide rail 2 will be described. In addition, as for each rib formed in the surface 20 and the back surface 22, it is desirable to set it as the same thickness from a viewpoint of shaping | molding.

  As shown in FIG. 6, the surface 20 is generally divided into two regions extending in the longitudinal direction, one of which is a rib region 57 in which a plurality of ribs are arranged, and the other is in which ribs are arranged. This is a non-rib region 59 that is not formed. The rib region 57 and the non-rib region 59 are both formed adjacent to each other along the longitudinal direction. The mounting holes 40 and 42 described above are formed in the rib area 57, while the mounting holes 44 and the fixing holes 30 and 32 are formed in the non-rib area 59. A rail portion 54 for guiding the slider base 6 of FIG. 1 is formed on the surface 20, and a region between the rail portion 54 and the rib region 57 is a non-rib region 59.

  The rib region 57 has approximately three types of ribs, ie, two long ribs 60 and 62, a plurality of short ribs 70a and 70b, and arc ribs 80 and 82 as a plurality of ribs. These three types of ribs are formed so as to protrude from the surface 20 and all have the same height.

  The longitudinal ribs 60, 62 extend in the longitudinal direction between the end portions 24, 26. Among these, the longitudinal ribs 60 extend linearly and continuously along the longitudinal direction, but the longitudinal ribs 62 extend in a curved line along the longitudinal direction so that the central portion swells outward. ing. The longitudinal rib 62 is continuous in the longitudinal direction via the arc ribs 80 and 82. The longitudinal rib 60 defines a longitudinal boundary between the rib region 57 and the non-rib region 59. The longitudinal ribs 60 and 62 are connected to each other in the longitudinal direction. Specifically, the upper end portions of the longitudinal ribs 60 and 62 are connected to each other by the lateral rib 64 in the vicinity of the wire guide portion 25. Further, the lower end portions of the longitudinal ribs 60 and 62 are connected to each other by being connected to the wire guide portion 4.

  The short ribs 70a and 70b are formed in a zigzag shape along the longitudinal direction between the long ribs 60 and 62, and the long ribs 60 and 62 are connected to each other at a plurality of locations. Specifically, the short ribs 70a generally extend obliquely upward to the right in FIG. 6, and the short ribs 70b extend obliquely upward to the left in FIG. The short ribs 70a and the short ribs 70b are basically arranged in a zigzag shape as a whole, with the same place where the long ribs 60 and 62 are connected. However, at the position where the arc ribs 80 and 82 exist, the short rib 70a and the short rib 70b connect the long ribs 60 and 62 to each other via the arc ribs 80 and 82, and the arc ribs 80 and 82. It is formed in a zigzag shape via.

  The arc ribs 80 and 82 are arc-shaped ribs that are partially opened on the side of the longitudinal rib 62 and are formed so as to surround the attachment holes 40 and 42. The arc ribs 80 and 82 are connected to the longitudinal rib 62 at both ends in the circumferential direction. The longitudinal ribs 80 and 82 extend from the longitudinal rib 62 toward the longitudinal rib 60, but are spaced apart from the longitudinal rib 60.

  By such a rib configuration in the rib region 57 (particularly, the long ribs 60 and 62 and the short ribs 70a and 70b), the longitudinal direction in which the compressive load from the wires 13 and 14 acts is supported by a structure like a column. Thus, the strength in the longitudinal direction can be improved efficiently. In particular, since the short ribs 70a and 70b are formed in a zigzag shape, the strength in the longitudinal direction can be increased with less resin material compared to the case where the short ribs 70a and 70b extend in only one direction. Further, the arc ribs 80 and 82 reinforce the surroundings of the mounting holes 40 and 42 that are likely to reduce the strength.

  Here, as shown in FIGS. 1 and 3, the moving region 16 of the feeding portions 13 a and 14 a of the wires 13 and 14 is formed in the non-rib region 59 among the rib region 57 and the non-rib region 59. That is, the feeding portions 13 a and 14 a do not exist in the rib region 57 but exist only in the non-rib region 59 and move in the longitudinal direction in the non-rib region 59.

  As shown in FIG. 7, the back surface 22 has a plurality of ribs (29, 100a, 100b, 102a, 102b, 112a, 112b, 114a, 114b, 116, 117, 118, 119, 120, 122a, 122b, 122c, 130. 140a, 140b, 140c, 142, 150, 152, 154) extend in a plurality of directions. From another viewpoint, the plurality of ribs on the back surface 22 do not divide the region of the back surface 22 along the longitudinal direction, and do not isolate the raised portions 34, 36, 50, 52, and 54 individually. It is formed so as to extend over the entire back surface 22. Below, arrangement | positioning of each rib is demonstrated.

  First, looking at the raised portion 54, the raised portion 54 is connected to the raised portions 50 and 52 by the ribs 100a and 100b, and is connected to the end portion 2a of the guide rail 2 by the ribs 102a and 102b. These ribs 100a, 100b, 102, and 102b are connected to the circumferential surface of the cylindrical rib 54a having a small raised portion 54 at a pitch of approximately 90 degrees. Next, when the bulging portions 50 and 52 are viewed from the center, the bulging portions 50 and 52 are connected to the end portions 2 a and 2 b of the guide rail 2 by ribs 112 a, 112 b, 114 a and 114 b, and 117 and the drum surrounding rib 113 are connected by ribs 118 and 119. As in the case of the raised portion 54, the ribs 100 a, 112 a, 112 b, 116, and 118 connected to the raised portion 50 are connected to the peripheral surface of the small cylindrical rib 50 a of the raised portion 50. Further, the ribs 100 b, 114 a, 114 b, 117, and 119 connected to the raised portion 52 are connected to the peripheral surface of the small cylindrical rib 52 a of the raised portion 52. The drum surrounding rib 113 is an arc-shaped rib in which a part of the end portion 2 a side of the guide rail 2 is opened, and both end portions in the circumferential direction are connected to the end portion 2 a of the guide rail 2. The drum surrounding rib 113 surrounds the peripheral surface of the drum 12 disposed on the back surface 22.

  When viewed from the raised portion 34, the rib 116 is connected to the peripheral surface of the raised portion 34, and the rib 120 connected to the circular rib 29 is connected. Further, the end portions 2 a and 2 b of the guide rail 2 are connected. Ribs 122a, 122b, and 122c connected to each other are connected. The circular rib 29 is connected to the end 2 b and the upper end of the guide rail 2 by three ribs 130. Similarly, when viewed from the raised portion 36, the rib 117 is connected to the peripheral surface of the raised portion 36, and the ribs 140a, 140b, 140c connected to the ends 2a, 2b of the guide rail 2 are connected, Further, a rib 142 connected to the lower end of the guide rail 2 is connected. In addition, ribs 150, 152, and 154 that connect between the end portions 2a and 2b and the lower end of the guide rail 2 are also formed.

  Here, as the number of ribs on the back surface 22 increases, the strength of the guide rail 2 can be increased from the back surface 22 side. However, if the number is large, the amount of resin increases accordingly, which is not suitable for weight reduction. In this regard, the number of ribs on the back surface 22 of the present embodiment is the number / arrangement that provides necessary and sufficient strength from the back surface 22 side with as little resin as possible in relation to the strength on the front surface 20 of the guide rail 2. It has been confirmed by FEM analysis.

  For example, when attention is paid to the raised portion 34, the raised portion 54, and the end portion 2b of the guide rail 2, a part of the raised portion 34 is connected to the end portion 2b, but the raised portion 54 is not connected to the end portion 2b. Therefore, the raised portion 54 and the end portion 2a are connected by the ribs 102a and 102b, and further, these two portions are reinforced in order to reinforce between the connected portion and a portion where the raised portion 34 is connected to the end portion 2b. The substantially intermediate positions are connected by the ribs 112a and 122a. By such a device, a necessary and sufficient strength is provided between the raised portion 34 and the raised portion 54 with a resin amount (the number of ribs) as small as possible.

  From the same viewpoint, the raised portions 50 and 54 and the raised portions 52 and 54 are connected to each other by ribs 100a and 100b (first connecting ribs), or the raised portions 34 and 36 and the raised portions 50 and 52 are connected to the ribs 116, 117 (third connecting rib) is connected, and further, a device is provided to connect the raised portions 34, 36, 50, 52 to the end portion 2b of the guide rail 2 through the rib. In consideration of the compressive load acting on the upper and lower ends 24, 26 of the guide rail 2, the upper end 24 is formed with a plurality of ribs 130 together with the circular ribs 29, and the lower end 26 is formed with the ribs 150, There is a contrivance such as forming 152, 154 slightly densely. The ribs corresponding to the “second connecting rib” in the claims are the ribs 102a, 102b, 112a, 112b, 114a, 114b.

  According to the guide rail 2 of the present embodiment described above, it is possible to achieve both the improvement in strength on the surface 20 and the prevention of movement of the wires 13 and 14.

  Specifically, since the rib region 57 is formed along the longitudinal direction of the guide rail 2, the rib configuration of the rib region 57 has a certain degree in the longitudinal direction where the compressive load from the wires 13 and 14 acts. Contributes to increasing strength. Further, since the non-rib region 59 is formed along the longitudinal direction of the guide rail 2 and the movement of the wires 13 and 14 on the surface 20 side is performed in the non-rib region 59, the wire 13 moving in the longitudinal direction is formed. , 14 is not obstructed by the ribs on the surface 20.

  Moreover, about the back surface 22, the intensity | strength with respect to the load from a some direction can be improved efficiently by the multiple types of rib extended in the some direction. In addition, the strength can be increased by the raised portions 34, 36, 50, 52, 54, which are shape changes, around the fixing holes 30, 32 and the mounting holes 40, 42, 44 where the strength tends to decrease. That is, on the back surface 22, the reinforcing effect by the rib configuration and the reinforcing effect by the raised portion synergistically improve the strength.

  Therefore, according to the guide rail 2, the strength can be effectively ensured while using as little resin material as possible, which can contribute to the improvement of the fuel consumption of the vehicle.

  The embodiments of the present invention have been described above with reference to specific examples. The above specific examples are illustrations for explaining the present invention, and are not intended to limit the present invention only to the embodiments. In other words, those specific examples that have been appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. For example, each element included in each of the specific examples described above and their arrangement, material, shape, size, number, and the like are not limited to those illustrated, and can be changed as appropriate.

  For example, the short ribs 70a and 70b may have a form other than zigzag, and for example, a form extending only in one direction or a form showing a lattice shape such as a square lattice or a hexagonal lattice can be adopted. . However, it is preferable that the short ribs 70a and 70b have an aspect in which the short ribs are assembled based on a triangle (that is, an aspect like a truss structure). The form which cross | intersects so that it may become a character can be considered. Among these, considering the balance between strength and weight, a zigzag shape as described above is desirable.

  W: Window glass, 1: Wire-type window regulator, 2: Guide rail, 5: Power unit, 6: Slider base, 13, 14: Wire, 16: Moving area, 20: Front surface, 22: Back surface, 24: Upper end , 26: lower end portion, 30, 32: fixing hole, 34, 36: raised portion (second raised portion), 40, 42, 44: mounting hole, 50, 52, 54: raised portion (first raised portion) ), 57: rib region, 59: non-rib region, 60, 62: long rib, 70a, 70b: short rib, 80, 82: arc rib, 100a, 100b: rib (first connecting rib), 102a, 102b, 112a, 112b, 114a, 114b: rib (second connecting rib), 116, 117: rib (third connecting rib).

Claims (18)

A guide rail used in a wire type window regulator that moves a window glass attached to the slider base up and down by moving the slider base through a wire,
In addition to having a front surface and a back surface, both ends in the longitudinal direction of the guide rail receive force from the wire, and a moving region of the wire that moves together with the slider base is provided on the front surface side between the both ends. Having a guide rail,
The guide rail is made of resin,
The back surface is arranged such that a plurality of ribs extend in a plurality of directions,
The surface is
A rib region formed along the longitudinal direction and provided with a plurality of ribs;
A non-rib area formed along the longitudinal direction next to the rib area, where no ribs are arranged, and
A guide rail for a wire type window regulator, wherein the moving region is configured in the non-rib region among the rib region and the non-rib region. The plurality of ribs in the rib region are:
Two longitudinal ribs extending in the longitudinal direction between the ends,
The guide rail for wire type window regulators according to claim 1, comprising a plurality of short ribs connecting the two long ribs between the two long ribs.   The guide rail for a wire type window regulator according to claim 2, wherein the plurality of short ribs are formed in a zigzag shape. A plurality of mounting holes for mounting a power unit for transmitting power to the wire are formed,
The plurality of ribs in the rib region are:
At least one arc rib extending from one of the two longitudinal ribs but spaced apart from the other, wherein at least one arc rib formed to surround at least one of the plurality of mounting holes; Have
The guide rail for a wire type window regulator according to claim 3, wherein the plurality of short ribs are formed in a zigzag shape while connecting the two long ribs through the at least one arc rib. The plurality of attachment holes include two first attachment holes formed in the rib region and a second attachment hole formed in the non-rib region.
The guide rail for a wire type window regulator according to claim 4, wherein the at least one arc rib includes two arc ribs formed so as to surround the two first mounting holes, respectively.   The guide rail for a wire type window regulator according to claim 5, wherein the second mounting hole is located between the two first mounting holes.   The guide rail for a wire type window regulator according to claim 5 or 6, wherein the second mounting hole is located substantially in the middle of the guide rail in the longitudinal direction. A plurality of first raised portions each having the plurality of mounting holes in the center are formed on the back surface,
The wire-type window regulator according to any one of claims 4 to 7, wherein the plurality of ribs on the back surface include a plurality of first connecting ribs that connect the plurality of first raised portions. Guide rail.   The plurality of ribs on the back surface include a plurality of second connecting ribs that connect both end portions of the guide rail extending in the longitudinal direction and the plurality of first raised portions. Guide rail for wire type window regulator. A plurality of fixing holes for fixing the guide rail to the door panel are formed,
A plurality of second raised portions having the plurality of fixing holes in the center are formed on the back surface,
The wire according to claim 8 or 9, wherein the plurality of ribs on the back surface include a plurality of third connecting ribs that connect the plurality of second raised portions to the plurality of first raised portions. -Type window regulator guide rail.   The guide rail for a wire type window regulator according to claim 10, wherein the plurality of fixing holes are formed in the non-rib region of the rib region and the non-rib region on the surface.   The guide rail for a wire type window regulator according to any one of claims 2 to 11, wherein the two longitudinal ribs are connected to each other in the longitudinal direction. A plurality of fixing holes for fixing the guide rail to the door panel are formed,
The wire-type window regulator according to any one of claims 1 to 9, wherein the plurality of fixing holes are formed in the non-rib region of the rib region and the non-rib region on the surface. Guide rail. A plurality of second raised portions each having the plurality of fixing holes at the center are formed on the back surface,
The wire-type window regulator guide rail according to claim 13, wherein the plurality of ribs on the back surface include a plurality of ribs connected to the plurality of second raised portions. A plurality of mounting holes for mounting a power unit for transmitting power to the wire are formed,
A plurality of first raised portions each having the plurality of attachment holes in the center are formed on the back surface,
The wire-type window regulator according to any one of claims 1 to 3, wherein the plurality of ribs on the back surface include a plurality of first connecting ribs that connect the plurality of first raised portions. Guide rail.   The plurality of ribs on the back surface include a plurality of second connecting ribs that connect both end portions of the guide rail extending in the longitudinal direction and the plurality of first raised portions. Guide rail for wire type window regulator.   The wire type according to any one of claims 1 to 16, wherein the plurality of ribs on the back surface include a drum surrounding rib for surrounding a drum around which a wire is wound so as to be drawn out and wound. Guide rail for window regulator.   18. The guide rail for a wire type window regulator according to any one of claims 1 to 17, wherein the resin is obtained by adding 30% by weight of a glass fiber of polyamide 66.