JP2006009924A - Adjusting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adjusting structure, capable of adjusting car height as a shock absorber is installed on a vehicle. <P>SOLUTION: This adjusting structure E1 for adjusting the length of the shock absorber is provided with a bracket side screw part 5a provided on a bracket 5 that can be mounted on the vehicle, a cylinder side screw part 1a provided at an end of a cylinder 1 of the shock absorber in the inverse direction to the bracket side screw part 5a, and a connecting part 10 engaged with the bracket side screw part 5a and the cylinder side screw part 1a to connect the bracket 5 to the cylinder 1. By rotating the connecting part 10, the length of the shock absorber is adjusted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an adjustment structure for adjusting the length of a shock absorber.

  In the adjustment structure for adjusting the length of the shock absorber, for example, there is a proposal of a structure in which a cylindrical bracket is screwed to a screw portion provided on the outer periphery of the cylinder of the shock absorber (see, for example, Patent Document 1). .

In this adjustment structure, the bracket is rotated with respect to the cylinder, whereby the bracket is moved up and down with respect to the cylinder, and the mounting length of the shock absorber is adjusted to adjust the vehicle height.
JP 2002-286079 A (paragraph number 0014, FIG. 1 and FIG. 2)

  However, in the above-described conventional adjustment structure, once the shock absorber is attached to the vehicle, the vehicle height cannot be adjusted.

  That is, in order to attach the shock absorber to the vehicle, the bracket is attached to the axle and the rod of the shock absorber is attached to the vehicle body, and the bracket cannot be rotated with respect to the cylinder. This makes it impossible to adjust the mounting length.

  Therefore, when adjusting the vehicle height, there was a problem that the bracket had to be removed from the axle once.

  Accordingly, the present invention has been developed to improve the above-described problems, and an object of the present invention is to provide an adjustment structure capable of adjusting the vehicle height with a shock absorber attached to the vehicle. .

  In order to achieve the above-described object, the problem-solving means of the present invention includes a screw portion on a bracket side provided on a bracket that can be attached to a vehicle, and a cylinder end of the shock absorber in an adjustment structure that adjusts the length of the shock absorber. A cylinder-side screw portion that is opposite to the bracket-side screw portion, and a bracket-side screw portion and a connecting portion that is screwed to the cylinder-side screw portion and connects the bracket and the cylinder. Thus, the length of the shock absorber is adjusted by rotating the connecting portion.

  According to the present invention, it is possible to adjust the length of the shock absorber by rotating the connecting portion with the shock absorber interposed between the vehicle body and the axle. The vehicle height can be adjusted with the device mounted on the vehicle.

  Therefore, unlike the conventional adjustment structure, the troublesome work of once removing the bracket from the axle side during the vehicle height adjustment work is unnecessary, and the vehicle height can be easily adjusted, reducing the burden on the operator. The work time will also be dramatically reduced.

  The present invention will be described below based on the illustrated embodiment. FIG. 1 is a side view of a shock absorber in which the adjustment structure according to the first embodiment is embodied. FIG. 2 is a partially enlarged cross-sectional view of a shock absorber in which the adjustment structure according to the second embodiment is embodied. FIG. 3 is a partially enlarged cross-sectional view of a shock absorber in which the adjustment structure according to the third embodiment is embodied. FIG. 4 is a partially enlarged cross-sectional view of a shock absorber in which the adjustment structure according to the fourth embodiment is embodied.

  As shown in FIG. 1, the adjustment structure E <b> 1 in the first embodiment is embodied in a shock absorber. The shock absorber is composed of a cylinder 1, a rod R inserted into the cylinder 1, and a cylinder 1. The suspension spring receiver 2 provided on the outer peripheral side of the rod R, the mount M provided at the upper end in FIG. 1 of the rod R, the suspension spring 3 interposed between the mount M and the suspension spring receiver 2, and the cylinder 1 1 includes a bracket 5 having an eye 6 connected to a lower end in FIG. 1 and a connecting portion 10 that connects the bracket 5 and the cylinder 1.

  The shock absorber is interposed between the vehicle body and the axle by connecting the mount M to the vehicle body side and the eye 6 of the bracket 5 to the vehicle axle side.

  The shock absorber is not specifically illustrated, but may be a single cylinder type or a multiple cylinder type.

  The adjustment structure E1 according to the present embodiment is configured such that a cylinder side screw portion 1a formed by threading a recess provided at the end of the cylinder 1 in FIG. The bracket side screw part 5a formed in this way and the connecting part 10 screwed to both the screw parts 1a and 5a.

  Hereinafter, the adjustment structure E1 will be described in detail. The cylinder-side screw portion 1a is formed in a recess provided in the shaft core portion at the end of the cylinder 1, and is formed as a so-called female screw. The winding direction is set to the right direction, that is, the right screw.

  The bracket 5 includes a shaft portion 5b and an eye 6 extending to the lower end of the shaft portion 5b in FIG. 1, and the bracket side screw portion 5a is formed on the outer periphery of the shaft portion 5b. The thread is wound in the direction opposite to the cylinder 1 side screw portion 1a, that is, the left screw, that is, the left screw.

  On the other hand, the connection part 10 is comprised by the cylinder part 10a, the collar 10b extended from the lower end in FIG. 1 of the cylinder part 10a, and the some notch 10c provided in the collar 10b. A male screw portion 11 serving as a right screw so that it can be screwed to the cylinder side screw portion 1a has a female screw portion serving as a left screw so as to be screwable to the bracket side screw portion 5a. 12 are provided.

  That is, the connecting portion 10 functions as a joint for connecting the cylinder 1 and the bracket 5 via the screw portions 1a and 5a, and the screw portions 1a and 5a are respectively oppositely directed screws. It will also function as a so-called turnbuckle.

  Therefore, when the cylinder 1 and the bracket 5 are fixed so as not to rotate in the circumferential direction and the connecting portion 10 is rotated, the bracket 5 is axially moved with respect to the cylinder 1 according to the rotating direction of the connecting portion 10. Can be in perspective.

  That is, by rotating the connecting portion 10 with the shock absorber interposed between the vehicle body and the axle, that is, with the cylinder 1 and the bracket 5 restricted from rotating in the circumferential direction. Since the length of the shock absorber can be adjusted, the troublesome work such as removing the bracket from the axle side once is not required during the vehicle height adjustment work as in the conventional adjustment structure, and the vehicle height can be adjusted easily. As a result, the burden on the operator is reduced, and the working time is drastically shortened.

  In rotating the connecting portion 10, the tool can be engaged with the notch 10 c provided in the flange 10 b of the connecting portion 10, so that the connecting portion 10 can be reliably rotated.

  In the case of the present embodiment, a nut 15 is screwed to the male screw portion 11 of the connecting portion 10, and a nut 16 is also screwed to the bracket side screw portion 5a.

  Therefore, the nut 15 is brought into contact with the lower end in FIG. 1 of the cylinder 1, and the nut 16 is brought into contact with the lower end in FIG. 1 of the connecting portion 10. It is prevented from rotating with respect to the bracket 5, whereby the length of the shock absorber can be maintained as set.

  Further, in the adjustment structure E1 in the first embodiment, when the length of the shock absorber is the shortest, the coupling portion 10 and the shaft portion 5b of the bracket 5 are accommodated in the concave portion of the cylinder 1. Therefore, the basic length of the shock absorber can be shortened, and if the reverse side is reversed, the rod stroke of the shock absorber can be easily secured.

  Subsequently, the adjustment structure E2 in the second embodiment will be described. Even in the adjustment structure E2, the adjustment structure E2 is embodied in a shock absorber as in the first embodiment.

  Therefore, although the description of the shock absorber is omitted, the adjustment structure E2 includes a cylinder side screw portion 20a formed by threading a recess provided in the lower end portion of the cylinder 20 in FIG. 2 includes a bracket-side screw portion 21a formed by threading a concave portion provided at the upper end portion in the middle, and a connecting portion 22 screwed to both the screw portions 20a and 21a.

  Similar to the first embodiment, the adjustment structure E2 has the same function as the turnbuckle. The difference from the first embodiment is the shape of the cylinder 20, the bracket 21, and the connecting portion 22. is there.

  The cylinder-side screw portion 20a is formed in a recess provided in the axial center portion of the end portion of the cylinder 20, and is formed in a so-called female screw. For example, the winding direction of the screw thread is rightward, that is, right screw. Is set.

  The bracket 21 includes a shaft portion 21b and an eye 6 extending to the lower end of the shaft portion 21b in FIG. 2, and the bracket side screw portion 21a is provided at the upper end portion of the shaft portion 21b in FIG. It is formed on the inner periphery of the recess and is formed in a so-called female screw, and the winding direction of the screw thread is set to the left direction opposite to the cylinder side screw portion 20a to be a left screw.

  On the other hand, the connecting portion 22 includes a shaft portion 22a, a flange 22b provided in the middle portion of the shaft portion 22a in FIG. 1, and a plurality of notches 22c provided in the flange 22b. A male screw portion 23 serving as a right screw so as to be screwable to the cylinder side screw portion 20a is provided on the outer periphery, and a bracket screw portion 21a is provided on the outer periphery which is lower in FIG. Thus, a male screw portion 24 serving as a left screw is provided.

  Therefore, even in the adjustment structure E2 according to the second embodiment, when the connecting portion 22 is rotated with respect to the cylinder 20 and the bracket 21, the bracket 21 is moved with respect to the cylinder 20 according to the turning direction of the connecting portion 22. Can be moved in the axial direction.

  That is, as in the first embodiment, the vehicle height can be adjusted while the shock absorber is attached to the vehicle, and the nuts 25 and 26 are provided on the male screw portions 23 and 24 of the connecting portion 22. As in the first embodiment, the length of the shock absorber can be maintained as set.

  In addition, in the adjustment structure E2 in the second embodiment, the connecting portion 22 has a shaft shape and is screwed into the screw portions 20a and 21a provided in the recesses of the cylinder 20 and the bracket 21, respectively. Therefore, the adjustment structure E2 does not unnecessarily increase the outer diameter of the shock absorber.

  Further, the adjustment structure E3 in the third embodiment will be described. Even in the adjustment structure E3, the adjustment structure E3 is embodied in a shock absorber as in the first embodiment.

  This adjusting structure E3 includes a cylinder side screw portion 30a formed by threading a shaft portion 30b provided at the lower end portion of the cylinder 30 in FIG. 3, and a screw cut on the upper outer periphery of the bracket 31 in FIG. The bracket side screw portion 31a is formed, and the connecting portion 32 is screwed to both the screw portions 30a and 31a.

  And this adjustment structure E3 is also provided with the function similar to a turnbuckle similarly to 1st Embodiment, The points different from 1st Embodiment are the cylinder 30, the bracket 31, and the connection part 32. Shape.

  The cylinder side screw part 30a is formed on the outer periphery of a shaft part 30b extended to the end of the cylinder 30, and is formed as a so-called male screw. For example, the winding direction of the screw thread is rightward, that is, right Set to screw.

  The bracket 31 includes a shaft portion 31b and an eye 6 extending to the lower end of the shaft portion 31b in FIG. 3, and the bracket side screw portion 31a is formed on the outer periphery of the shaft portion 31b. It is formed in a so-called male screw, and the winding direction of the screw thread is set to the left direction opposite to the cylinder side screw portion 30a formed in the cylinder 30, that is, the left screw.

  On the other hand, the connecting portion 32 is formed in a cylindrical shape, and a female screw portion 33 serving as a right screw so as to be screwable to the cylinder side screw portion 30a is provided above the inner periphery, A female screw portion 34 serving as a left screw is provided so as to be screwable to the bracket side screw portion 31a.

  Therefore, even in the adjustment structure E3 according to the third embodiment, when the connecting portion 32 is rotated with respect to the cylinder 30 and the bracket 31, the bracket 31 with respect to the cylinder 30 according to the turning direction of the connecting portion 32. Can be moved in the axial direction.

  That is, as in the first embodiment, the vehicle height can be adjusted while the shock absorber is attached to the vehicle, and the nuts 35 and 36 are screwed to the screw portions 30a and 31a, respectively. As in the first embodiment, the length of the shock absorber can be maintained as set.

  Further, in the adjustment structure E3 according to the third embodiment, the connecting portion 32 is formed in a cylindrical shape, covers the screw portions 30a and 31a of the cylinder 30 and the bracket 31, and also functions as a cover. Therefore, it is possible to prevent mud and dust from being attached to the screw portions 30a and 31a, thereby ensuring smooth rotation of the connecting portion 32.

  Finally, the adjustment structure E4 in the fourth embodiment will be described. Even in the adjustment structure E4, the adjustment structure E4 is embodied in a shock absorber as in the first embodiment.

  This adjusting structure E4 includes a cylinder side screw portion 40a formed by threading a shaft portion 40b provided at the lower end portion of the cylinder 40 in FIG. 4 and a recess portion provided in the upper end portion of the bracket 41 in FIG. The bracket side screw part 41a formed by cutting and a connecting part 42 screwed to both the screw parts 40a and 41a are configured.

  The adjustment structure E4 also has the same function as the turnbuckle, as in the first embodiment. The difference from the first embodiment is that the cylinder 40, the bracket 41, and the connecting portion 42 Shape.

  The cylinder side screw portion 40a is formed on the outer periphery of a shaft portion 40b extended to the end of the cylinder 40, and is formed as a so-called male screw. For example, the winding direction of the screw thread is rightward, that is, right Set to screw.

  The bracket 41 includes a shaft portion 41b and an eye 6 extending to the lower end of the shaft portion 41b in FIG. 4, and the bracket side screw portion 41a is provided at the upper end portion of the shaft portion 41b in FIG. It is formed on the inner periphery of the recess and is formed in a so-called female screw, and the winding direction of the screw thread is also set to the left opposite to the cylinder side screw portion 40a to be a left screw.

  On the other hand, the connecting portion 42 is formed in a cylindrical shape and includes a cylindrical portion 42a and a shaft portion 42b extending from the lower end of the cylindrical portion 42a, and the cylinder side screw portion 40a is provided on the inner periphery of the cylindrical portion 42a. A female screw 43 serving as a right screw is provided so as to be able to be screwed to the outer periphery, and a male screw 44 serving as a left screw is provided on the outer periphery of the shaft portion 42b so as to be screwable to the bracket side screw 41a. ing.

  Therefore, even in the adjustment structure E4 in the fourth embodiment, when the connecting portion 42 is rotated with respect to the cylinder 40 and the bracket 41, the bracket 41 with respect to the cylinder 40 according to the turning direction of the connecting portion 42. Can be moved in the axial direction.

  That is, as in the first embodiment, the vehicle height can be adjusted with the shock absorber attached to the vehicle, and the cylinder side screw portion 40a and the male screw portion 44 have nuts 45 and 46, respectively. As in the first embodiment, the length of the shock absorber can be maintained as set.

  In addition, the adjustment structure E4 according to the fourth embodiment has a merit that it is easy to manufacture because the structure is simple.

  In each of the above-described embodiments, the cylinder-side screw portion has been described as a right-hand screw and the bracket-side screw portion as a left-hand screw, but the cylinder-side screw portion has been used as a left-hand screw and the bracket-side screw portion has been used as a right-hand screw. It goes without saying that it is possible.

  This is the end of the description of the embodiment of the present invention, but the scope of the present invention is of course not limited to the details shown or described.

It is a side view of the buffer in which the adjustment structure in a 1st embodiment was embodied. It is a partial expanded sectional view of the buffer with which the adjustment structure in a 2nd embodiment was embodied. It is a partial expanded sectional view of the shock absorber in which the adjustment structure in a 3rd embodiment was embodied. It is a partial expanded sectional view of the buffer with which the adjustment structure in a 4th embodiment was embodied.

Explanation of symbols

1, 20, 30, 40 Cylinder 1a, 20a, 30a, 40a Cylinder side screw part 5a, 21a, 31a, 41a Bracket side screw part 2 Suspension spring receiver 3 Suspension spring 5, 21, 31, 41 Bracket 6 Eye 10, 22 , 32, 42 Connecting part E1, E2, E3, E4 Adjustment structure M Mount R Rod

Claims (5)

In the adjustment structure for adjusting the length of the shock absorber, the screw portion on the bracket side provided on the bracket that can be attached to the vehicle and the screw portion on the cylinder side opposite to the screw portion on the bracket side provided on the cylinder end of the shock absorber. A screw portion, a screw portion on the bracket side, and a connecting portion that is screwed to the screw portion on the cylinder side and connects the bracket and the cylinder, and the length of the shock absorber is increased by rotating the connecting portion. An adjusting structure characterized by adjusting. The bracket-side screw portion is provided on the outer peripheral side of the bracket end portion, the cylinder-side screw portion is provided in a recess provided in the cylinder end portion, the connecting portion is formed in a cylindrical shape, and the inner peripheral side thereof is screwed to the bracket-side screw portion. The adjustment structure according to claim 1, wherein the adjustment structure is attached and the outer peripheral side is screwed to the cylinder side screw portion. The bracket-side screw portion is provided in a recess provided in the bracket end portion, the cylinder-side screw portion is provided in a recess provided in the cylinder end portion, the connecting portion is formed in a shaft shape, and the outer peripheral side thereof is the bracket-side screw. The adjusting structure according to claim 1, wherein the adjusting structure is screwed onto the cylinder portion and the cylinder side screw portion. The bracket side screw portion is provided on the outer peripheral side of the bracket end portion, the cylinder side screw portion is disposed on the outer peripheral side of the cylinder end portion, the connecting portion is formed in a cylindrical shape, and the inner peripheral side thereof is the bracket side screw portion and the cylinder side screw. The adjusting structure according to claim 1, wherein the adjusting structure is screwed to the portion. The bracket side screw portion is provided in a recess provided in the bracket end portion, the cylinder side screw portion is provided on the outer peripheral side of the cylinder end portion, and the connecting portion is formed by a cylindrical portion and a shaft portion extending from the cylindrical portion. The adjustment structure according to claim 1, wherein the outer peripheral side of the shaft portion is screwed to the bracket side screw portion, and the inner peripheral side of the cylinder portion is screwed to the cylinder side screw portion.

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