JP2006037624A - Slide door support device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide door support device, preventing increase in size of a roller and a guide rail while bearing high load even if the weight of a slide door increases. <P>SOLUTION: In this slide door device, a guide rail 4 is provided on one of the car body 1 side and the slide door 5 side, and an arm 6 having a roller 73 movably fitted to the guide rail 4 is provided on the other thereof. One end 70b of a support shaft 70, the other end 70a of which is caulked and fixed to the arm 6, is formed by caulking and fixing the roller 73 and thinningly tapered toward the one end 70b. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a slide door support device for attaching a slide door that opens and closes a side opening of an automobile.

Conventionally, when the sliding door is normally closed by three guide mechanisms in the vertical direction of the side opening of the vehicle body, the side surface of the sliding door is flush with the side surface of the vehicle body. It is provided to move along the side surface. These guide mechanisms comprise at least a guide rail having a substantially U-shaped cross section (channel shape) attached to the vehicle body side and a load support roller provided on the slide door side and engaged with the guide rail. The load support roller is fixed to a substantially horizontal support shaft that is secured to an arm provided on the slide door side, and is rotatably fitted to the guide rail. The support shaft has a straight rod shape with the same diameter from end to end and supports a part of the load of the slide door itself. Therefore, the diameter is determined in proportion to the weight of the slide door itself. Yes. In other words, when the sliding door becomes heavy, the support shaft itself cannot be shortened due to the need to ensure the clearance between the arm and the guide rail, and the diameter of the support shaft itself is increased in order to withstand the increase in bending moment. (For example, Patent Document 1).
Japanese Utility Model Publication No.55-119897

  However, in such a conventional technique, when the diameter of the load support roller is increased, the guide rail fitted to the load support roller is also increased, and the overall weight is heavy, which may cause deterioration of fuel consumption. . In addition, an increase in the size of the guide rail is not preferable from the viewpoint of the vehicle appearance.

  The present invention has been made by paying attention to such a conventional technique, and even if the weight of the slide door increases, the slide door support device can withstand a high load and does not increase the size of the load support roller or the guide rail. Is to provide.

  The invention according to claim 1 is a slide door support device in which a guide rail is provided on one of the vehicle body side and the slide door side, and an arm having a roller that is movably fitted to the guide rail is provided on either one of them. The other end of the support shaft, one end of which is crimped to the arm, is formed by the roller being crimped and formed in a tapered shape toward the other end.

  The invention according to claim 2 is characterized in that a step portion that can be received by a crimping receiving jig is formed in the middle of one end of the support shaft.

  According to the first aspect of the present invention, since the taper is tapered toward one end of the support shaft that supports the load supporting roller, the sliding door is effective against the bending moment caused by the load of the sliding door itself. Even if the weight increases, the load supporting roller and the guide rail are not increased in size while withstanding a high load. Further, since the support shaft around the flange of the guide rail that holds the load supporting roller is thin, the flange can be made high and the rigidity of the guide rail can be improved.

  According to the second aspect of the present invention, by forming the step portion that can be received by the crimping receiving jig in the middle of the other end of the support shaft, more stable crimping can be performed.

  The aim is to provide a slide door support device that can withstand high loads and does not increase the size of rollers or guide rails even when the weight of the slide doors increases. A sliding door support device provided with an arm having a roller that is movably fitted to the guide rail, and the other end of the support shaft, one end of which is crimped to the arm, This is realized by the roller being crimped and formed in a tapered shape toward the other end.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  Reference numeral 1 denotes an automobile body, 2 denotes an outer plate on the side of the vehicle body 1, and 3 denotes a recess formed in the outer plate 2. The recess 3 is formed at a substantially central portion in the vertical direction of the vehicle body 1 and has one end bent toward the vehicle interior side near the door opening end 10 and the other end extending rearward of the vehicle along the side skin 2. Yes.

  Reference numeral 4 is a guide rail having a substantially U-shaped cross section (channel shape), and is formed in a shape matching the locus of the recess 3. A bolt 45 that is welded and supported on the back surface portion 40 in advance is inserted into a through-hole 31 formed in the bottom portion 30 of the recess 3 so that the opening side faces the outer side of the vehicle body 1 in the horizontal direction, and by a nut 32. Installed.

  The guide rail 4 having a substantially U-shaped cross section (channel shape) has a horizontal first guide surface 41, a second guide surface 42 facing the first guide surface 41, and the second guide surface 42 in the same cross section. The first vertical guide surface 43 formed by hanging down the channel opening end of the first and second vertical guide surfaces 44 formed by folding the first vertical guide surface 43 further to the opposite (upper) side.

  Reference numeral 5 denotes a sliding door. An extending arm 6 is fixed to the inside of the sliding door 5 with respect to the vehicle interior, and a support member is connected to the free end of the arm 6 via a hinge pin 8. 7 is rotatably supported.

  The support member 7 is caulked with one end 70a, 71a, 72a of a horizontal support shaft 70 having a horizontal center 70c and a pair of vertical support shafts 71 and 72 having a vertical center. ing. A load support roller 73 is caulked to the other end 70 b of the horizontal support shaft 70. Further, guide rollers 74 and 75 are rotatably provided at the other end portions 71b and 72b of the vertical support shafts 71 and 72, respectively. The load support roller 73 rolls along the first vertical guide surface 43 on the horizontal first guide surface 41 of the guide rail 4, and the guide rollers 74 and 75 roll along the second vertical guide surface 44. Each is engaged with a guide rail 4 so as to move.

  The load support roller 73 supports the load of the slide door 5 on the horizontal first guide surface 41, and the load toward the vehicle outer side is supported by the first vertical guide surface 43, so that the load support roller 73 is prevented from coming out to the vehicle outer side. ing. Further, the guide rollers 74 and 75 are second vertical guide surfaces 44 that support the load on the vehicle interior side, and the sliding door 5 slides from a closed position indicated by a solid line to an open position indicated by a two-dot chain line in FIG. Guided by

  One end 70a of the horizontal support shaft 70, in which the load supporting roller 73 is crimped to the other end 70b, is crimped to the support member 7, and is formed in a tapered shape toward the other end 70b. .

  FIG. 4 is a view showing a caulking stop tool 76 and a caulking receiving jig 77 for the support member 7 with respect to the one end 70a of the horizontal support shaft 70. A taper portion from one end 70a of the horizontal support shaft 70 to the other end 70b is shown. The caulking receiving jig 77 is completely inserted, and the caulking can be stably stopped by the tool 76.

  Because of this configuration, only the load support roller 73 is positioned in the channel of the guide rail 4, the cross section of the guide rail 4 can be minimized, and the structure is simple and inexpensive.

  In addition, the support shaft 70 that supports the load support roller 73 is formed in a tapered shape from the one end 70a side to the other end 70b side, thereby being effective against a bending moment due to the load of the slide door 5 itself. Even if the weight of the slide door 5 is increased, the load supporting roller 73 and the guide rail 4 are not increased in size while withstanding a high load.

  Further, since the support shaft 70 around the flange formed by the first vertical guide surface 43 and the second vertical guide surface 44 of the guide rail 4 holding the load supporting roller 73, that is, the other end 70b side is thin, the guide rail 4 The flange can be increased, the section modulus can be increased, and the rigidity of the guide rail 4 can be improved.

  A second embodiment of the present invention will be described with reference to FIGS. In this embodiment, a step portion 82 that can be received by the top portion 81a of the caulking receiving jig 81 is formed in the middle of the tapered portion from the one end 80a to the other end 80b of the horizontal support shaft 80 of the first embodiment.

  According to the second embodiment, the step 82 that can be received by the top 81a of the caulking receiving jig 81 is formed in the middle of the one end 80a to the other end 80b of the horizontal support shaft 80, so that more stable caulking is achieved. Processing can be performed.

  In the above embodiment, the guide rail is provided on the vehicle body side, but the guide rail may be provided on the slide door side. In this case, the arm having the guide roller is provided on the vehicle body side.

The top view which shows the sliding mechanism part of the sliding door and vehicle body concerning 1st Example of this invention. Sectional drawing along the SA-SA line of FIG. Sectional drawing which shows the crimping | stopping condition of the support member of FIG. 2, a horizontal spindle, and a load support roller. Sectional drawing which shows the relationship with the jig | tool at the time of the caulking stop of FIG. FIG. 4 is a cross-sectional view corresponding to FIG. 3 according to a second embodiment of the present invention. Sectional drawing which shows the relationship with the jig | tool at the time of the caulking stop of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 2 Outer plate 3 Recess 4 Guide rail 41 Horizontal first guide surface 5 Slide door 6 Arm 7 Support members 70, 80 Horizontal support shaft (support shaft)
70a, 80a One end 70b The other end 70c Center 71, 72 Vertical support shaft 73 Load support roller (roller)
74, 75 Guide roller 76 Clamping tool 77 Caulking support jig

Claims (2)

A slide door support device in which a guide rail is provided on one of the vehicle body side and the slide door side, and an arm having a roller that is movably fitted to the guide rail is provided on either side.
The slide door support device according to claim 1, wherein the other end of the support shaft, one end of which is crimped to the arm, is formed by the roller being crimped and tapered toward the other end. The sliding door support device according to claim 1,
A slide door support device, wherein a step portion that can be received by a caulking receiving jig is formed in the middle of one end of the support shaft.

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