JP5145298B2 - Vehicular air spring and its mounting method - Google Patents

Description

  The present invention relates to an air spring for a vehicle and a mounting method for the suspension jig, and more specifically, a diaphragm made of an elastic material across an upper support portion on a vehicle body side and a lower support portion on a cart side disposed below the upper support portion. The present invention relates to a vehicular air spring provided with a hanger, and a mounting method for a hanging jig for a vehicular air spring.

  Conventionally, this type of vehicle air spring, for example, a railcar air spring A having a laminated rubber structure stopper s below the lower support portion 2 as shown in FIG. That is, a rod-shaped hanging jig B having a loop portion 23 capable of hooking a crane hook (not shown) at the upper end and a male screw 22 at the lower end is first opened at the center of the upper support portion 1. The suspension jig B is inserted through the air supply / discharge hole 31, and the male screw 22 at the lower end thereof is screwed to the female screw 17 formed at the center of the bead sheet 5 which is the lower support portion 2 of the air spring A. Then, a crane hook is hooked on the loop portion 23 at the upper end, the air spring A is lifted, and moved laterally in the suspended state.

  As shown in FIG. 5, in the railcar air spring A that is installed in the lower support portion 2 in a state where the stopper s of the laminated rubber structure is pre-compressed, in the center of the cylindrical boss portion 1 e of the upper support portion 1. The rod-like suspension jig B is inserted using the formed through hole 32, and the male screw 22 at the tip is screwed onto the female screw 17 formed at the center of the cover lid-like presser lid 5 for precompression. Attach the hanging jig B. The subsequent steps are the same as in the case described above (the air spring shown in FIG. 4). 4 and 5, 3 is a diaphragm, P is an axis, 6 is a sliding plate integrated with the upper support portion 1, and 12 is a sliding plate integrated with the lower support portion 2. As described above, examples of vehicle air springs that can be moved using a hanging jig include those disclosed in Patent Documents 1, 2, 3, and 4.

  In general, the sliding plate and the sliding plate are on the lower surface side of the upper support portion and the upper surface side of the lower support portion so that the abutment with the support portion that is the upper support portion when the diaphragm is in an airless state is performed smoothly. Equipped with sorting. For example, the sliding plate is made of a fluororesin plate material, and the sliding plate is made of a stainless steel plate, respectively, and is set so that damage due to contact between the upper support portion and the lower support portion does not occur due to a low friction coefficient. ing.

  However, in the hanging and conveying means using the above-described hanging jig when the diaphragm is in an airless state, the rod-like portion of the hanging jig and the upper support portion are merely loosely fitted, The upper support part moves downward and is always in contact with the lower support part. Therefore, there is a problem that the contact and rubbing between the sliding plate and the sliding plate for temporary use, such as slight movement of the vehicle in a puncture or airless state, occur even during unexpected hanging movement. In addition, when transported by freight railroad or truck with the hanging jig attached, the sliding plate and the sliding plate rub against each other for a long time, and are already worn out before use as a product. There is a possibility of inconvenience.

JP 2001-355667 A JP 2005-231464 A JP 2008-115959 A JP 2008-304027 A

  The object of the present invention is to devise a structure that can be applied to a lifting jig that is convenient for transportation by revising the structure and devising a device. An object of the present invention is to provide an air spring for a vehicle which is improved so as to be suitable for hanging movement without causing a disadvantage of durability as a stopper so as not to cause inconvenience of contact with the upper surface as much as possible.

  The invention according to claim 1 is an air spring for a vehicle in which a diaphragm 3 made of an elastic material is provided across an upper support portion 1 on a vehicle body side and a lower support portion 2 on a cart side disposed below the vehicle support. The upper support portion 1 and the lower support portion 2 are provided with female threads 16 and 17 having a common longitudinal axis P, and the female screw 17 of the lower support portion 2 has a substantially rod shape for hanging an air spring. The lower male screw 22 formed at the lower end portion of the hanging jig B is configured to be screwable, and the female screw 16 of the upper support 1 is separated upward from the lower male screw 22 in the hanging jig B. The upper male screw 21 is configured to be screwable, and the female screw 16 of the upper support portion 1 is set in a state in which the lower male screw 21 can pass therethrough. .

  According to a second aspect of the present invention, in the vehicle air spring according to the first aspect, the lower support portion 2 mounts and supports the lower bead portion 3d of the diaphragm 3 and is supported on the cart side. The lower base 4, the elastic part a placed on the lower base 4, the elastic part a being pre-compressed and locked to the lower base 4, and the upper support 1 It is configured as an elastic stopper having a presser lid 5 that can be placed and supported. A female screw 17 of the lower support portion 2 is formed on the lower base 4, and a lower male screw 22 of the hanging jig B is the female screw. Through holes 19 and 11 for allowing them to be screwed to 17 are formed in the presser lid 5 and the elastic part a.

  According to a third aspect of the present invention, in the air spring for a vehicle according to the second aspect, the through hole 19 of the presser lid 5 and the suspension jig B located inside the presser lid 5 are configured in a close fitting structure. It is characterized by being.

  According to a fourth aspect of the present invention, in the vehicle air spring according to any one of the first to third aspects, the sliding plate 12 and the cover are provided on the lower surface of the upper support portion 1 and the upper surface of the upper support portion 2. The sliding plate 6 is arranged in a distributed manner, and the sliding plate 12 and the sliding plate 6 are in contact with each other when the diaphragm 3 is in an airless state.

According to a fifth aspect of the present invention, there is provided an air spring A for a vehicle in which an elastic material diaphragm 3 is provided across an upper support portion 1 on a vehicle body side and a lower support portion 2 on a cart side disposed below the upper support portion 1. In the vehicle air spring suspension jig mounting method of detachably mounting the vehicle air spring A with a substantially rod-shaped suspension jig B for lifting,
The upper support portion 1 and the lower support portion 2 are respectively formed with female screws 16 and 17 having a common longitudinal axis P, and a lower male screw 22 is provided at the lower end portion of the hanging jig B, and The upper male screw 21 is formed in the middle part,
The lower male screw 22 inserted through the female screw 16 of the upper support portion 1 is screwed to the female screw 17 of the lower support portion 2, and the upper male screw 21 is screwed to the female screw 16 of the upper support portion 1. Thus, the vehicle air spring A is equipped with a hanging jig B.

  The invention according to claim 6 is the vehicle air spring suspension jig mounting method according to claim 5, wherein the lower bead portion 3d of the diaphragm 3 is placed and supported as the air spring A for the vehicle, and A lower pedestal 4 supported on the cart side, an elastic part a placed on the lower pedestal 4, and locked to the lower pedestal 4 with the elastic part a pre-compressed, and The lower support portion 2 is formed as an elastic stopper having a presser lid 5 on which the upper support portion 1 can be placed and supported, and a female screw 17 of the lower support portion 2 is formed on the lower base 4. In addition, there is prepared one in which through holes 19 and 11 for allowing the lower male screw 22 of the hanging jig B to be screwed into the female screw 17 are formed in the presser lid 5 and the elastic part a, The internal thread 16 of the upper support portion 1 and the through holes 19 and 11 are It is characterized in that for screwing the lower male screw 22 to be inserted in our the internal thread 17 of the lower support portion 2.

  According to the first aspect of the present invention, although described in detail in the section of the embodiment, since the threaded portion to be screwed with the hanging jig is provided in both the upper support portion and the lower support portion, the air Even if the spring is in an airless state, the hanging jig can be mounted with a gap provided between the upper support portion and the lower support portion. Therefore, in the vehicular air spring in which the hanging jig is mounted for hanging movement and storage, the upper support portion and the lower support portion do not come into contact with each other or rub against each other. In addition, since the vehicle air spring is supported by the hanging jig at one place from two places in the past, the weight of the air spring is supported in a distributed manner and moved in a stable support state with less possibility of deformation and distortion. Is possible. As a result, while being configured so that a hanging jig convenient for transportation can be applied, inconvenience that the lower surface of the upper support portion and the upper surface of the lower support portion caused by the suspension configuration do not occur as much as possible, In addition, it is possible to provide an air spring for a vehicle that is improved so as to be suitable for a hanging movement without causing a disadvantage of durability as a stopper in a more stably supported state.

  According to the second aspect of the present invention, the lower female screw to be engaged with the lower male screw of the hanging jig is formed on the lower base, and the lower support portion which is a stopper is lifted and supported from the lower portion when the air spring is suspended. It becomes a state. Therefore, it is possible to make a state in which a load due to the suspension does not act on the means (bolt 13 or the like) for locking the presser lid to the lower base, and it is not necessary to give unnecessary strength to the “locking means”. A vehicle air spring having a smart configuration (design) can be provided.

  According to the invention of claim 3, since the through hole of the presser lid and the hanging jig are closely fitted, the attachment of the hanging jig to the air spring causes the upper support portion and the lower support portion to It becomes possible to match the positions of the respective axes. As a result, when the diaphragm is assembled to the upper and lower support portions, the upper support portion and the lower support portion can be temporarily fixed using the lifting jig in a state where the respective axes (cores) coincide with each other. Advantages such as easy assembling work to the support portion and improved assembling work efficiency can be obtained.

  According to the fourth aspect of the present invention, the upper support portion and the lower support when the air spring is in an airless state by the sliding plate and the sliding plate that are allocated and arranged on the lower surface of the upper supporting portion and the upper surface of the upper supporting portion. It is possible to achieve a preferable state in which the support portion smoothly contacts with less friction. And only when it is in an airless state, in other words, the sliding plate and the sliding plate that should be brought into contact with each other are inadvertently inadvertently placed in a non-temporary state such as hanging or transporting by attaching a hanging jig. The contact between the sliding plate and the sliding plate can be expected to improve the durability.

  The invention of claim 5 defines a method for mounting the suspension jig to the vehicle air spring, and the suspension of the vehicle air spring capable of obtaining the same effect as the effect of the invention of claim 1. A jig mounting method can be provided.

  According to the invention of claim 6, the method for mounting the hanging jig to the vehicle air spring is defined in the same manner as in claim 5, and the same effect as the effect of the invention of claim 2 can be obtained. It is possible to provide a method for attaching a hanging jig for a vehicle air spring.

Sectional view showing structure of air spring for railway vehicle (Example 1) The railcar air spring of FIG. 1 with a hanging jig set Front view showing the hanging jig Sectional drawing which shows the conventional air spring 1 for rail vehicles Sectional drawing which shows the conventional air spring 2 for rail vehicles

  Hereinafter, an embodiment of a vehicle air spring according to the present invention will be described with reference to the drawings when applied to a railway vehicle. The present invention can be a vehicle air spring that is applied to automobiles and industrial vehicles such as trucks and buses.

[Example 1]
1 and 2 show a railcar air spring (hereinafter simply referred to as “air spring”) A. FIG. The air spring A includes an upper support portion 1 on the vehicle body side, a lower support portion 2 on the cart side disposed below the upper support portion 1, and rubber (elastic material) provided over the upper support portion 1 and the lower support portion 2. An example) made of a diaphragm 3. The lower support portion 2 is configured as an elastic stopper having a lower support portion 4 supported by a carriage, an elastic portion a having a laminated rubber structure, and a presser lid (also referred to as a bead sheet) 5.

  The upper support portion 1 is fixed over a steel plate support seat 1a that is circular in a vertical view, a deep plate-shaped bottomed tube portion 1b that is fixed to the lower surface of the support seat 1a, and both of them 1a and 1b. A cylindrical spacer 1c having a vertical axis P and a ring-shaped rubber upper receiving seat 1d integrated with the lower surface of the support seat 1a outside the diameter of the bottomed cylindrical portion 1b, and the axis P And a cylindrical boss portion 1e integrated with the upper surface of the support seat 1a, and a pair of supply / discharge bosses 1f and 1g integrated with opposing portions of the support seat 1a. The upper seat 1d is formed in a thin film shape on the outer peripheral surface of the bottomed cylindrical portion 1b, and is formed in a thick shape on the inner side of the lower surface of the support seat 1a. Is formed. On the bottom surface of the bottomed cylindrical portion 1b, a sliding plate 6 made of stainless steel and having an annular shape is integrated by adhesion or the like.

  The diaphragm 3 includes an upper bead portion 3a that is press-fitted into an upper corner portion formed by the support seat 1a and the bottomed cylindrical portion 1b, and a disk upper portion 3b that is received by the upper seat 1d with a large area. The body portion 3c that projects most laterally and the lower corner formed by the outer peripheral surface of the upper end outer peripheral wall 4a of the lower support portion 2 and the upper surface of the flange portion 4b are press-fitted through the attachment ring 7 It has a lower bead portion 3d to be joined. That is, a structure in which the diaphragm 3 is fitted and mounted on both the upper support portion 1 and the lower support portion 2 without a fastening structure such as a bolt, as in the relationship between the tire and the wheel of an automobile, a so-called “self-seal type diaphragm” It is configured to have a structure.

  The lower support portion 2 includes a lower receiving base portion 4 having a substantially deep dish-like bottom wall portion 4c following the upper end outer peripheral wall 4a, the flange portion 4b, and the flange portion 4b, and the lower receiving stand. An elastic part a mounted on the part 4 and a presser cover 5 supported by a presser ring 8 bolted to the inner peripheral side of the flange part 4b are provided. The presser lid 5 includes an upper wall 5a that is integrally provided with a sliding plate 12 made of a low friction material such as fluororesin, and that has an annular shape, a side peripheral wall 5b that extends downward from the outer periphery of the upper wall 5a, and a lower end of the side peripheral wall 5b. It is comprised from the metal plate which has the latching flange 5c extended and formed in the diameter outer side.

  The elastic portion a is formed by alternately stacking and integrating four annular metal plates 9 and three cylindrical rubber layers 10 up and down, and a central hole (an example of a through hole) 11 shares an axis P. doing. The lower metal plate 9 is fitted in a protruding outer peripheral portion 4d formed on the upper surface side of the bottom wall portion 4c, and the upper metal plate 9 is fitted on the raised central portion 5d of the presser lid 5. Thus, the bottom wall 4c and the presser lid 5 are interposed between the upper and lower sides in the positioning state.

  In order to put the lower support portion 2 in the assembled state, the elastic portion a is placed on the bottom wall portion 4c, and the presser lid 5 is placed thereon so as to cover it. Then, the presser ring 8 is passed through the presser lid 5 and dropped into the upper end outer peripheral wall 4a so as to be positioned on the inner peripheral side of the flange portion 4b. In this state, the flange portion 4b is used with a plurality of bolts 13. By screwing and tightening, the lower base 4 can be equipped with the elastic part a being compressed up and down by a predetermined amount. A rubber layer 8a for softly restricting the lateral movement of the elastic part a, that is, the lateral movement of the presser lid 5, is integrally provided on the inner peripheral surface of the presser ring 8 by means such as baking or vulcanization adhesion. ing.

  In short, the lower support portion 2 places and supports the lower bead portion 3d of the diaphragm 3 and is supported on the cart side, the elastic portion a placed on the lower stand 4 and the elasticity It is configured as an elastic stopper having a presser lid 5 that is locked to the lower base 4 in a state in which the portion a is precompressed and that can support the upper support portion 1. Then, the female screw 17 of the lower support portion 2 is formed on the lower base 4, and the through hole 19 and the center hole 11 for allowing the lower male screw 22 of the hanging jig B to be engaged with the lower female screw 17 are formed. It is formed in the presser lid 5 and the elastic part a.

  As shown in FIGS. 1 and 2, the attachment ring 7 includes a support disc 14 made of a pressed steel plate mounted on the flange portion 4b, and an annular rubber 15 integrated on the upper surface side thereof by vulcanization adhesion or the like. Is formed. The annular rubber 15 is SBR (styrene butadiene rubber), NR or the like formed in a shape that fits into the lower bead portion 3d, and the upper surface portion 15A is made of rubber containing aramid short fibers, that is, composite rubber. It is convenient to form it. That is, the upper surface portion 15A, which is a portion for receiving the lower bead portion 3d in the annular rubber 15, is reinforced and formed with rubber containing synthetic fiber short fibers, and the composite rubber portion 15A is provided so that the lower support portion 2 and the diaphragm 3 This is because friction can be reduced.

  In the air spring A according to the first embodiment, air is supplied to and discharged from the inside of the diaphragm 3 using a pair of supply / discharge bosses 1f and 1g. ) Closes the upper female screw 16 of the cylindrical boss 1e.

  Next, the hanging jig B and the hanging jig mounting structure and method of the air spring A will be described. As shown in FIG. 3, the hanging jig B is a substantially rod-shaped metal body having a shaft-shaped hanging body 20, a loop portion 23 screwed to the upper end thereof, and a lock nut 24. It is configured. An upper male screw 21 is formed at one end of the suspension body 20, and a lower male screw 22 having a smaller diameter than the upper male screw 21 is formed at the other end, and a loop portion 23 is screwed to the upper male screw 21 with a lock nut 24. ing.

  On the other hand, in the air spring A, an upper female screw 16 that can be screwed to the upper male screw 21 is formed on the cylindrical boss portion 1e, and a lower female screw 17 that can be screwed to the lower male screw 22 is formed on the bottom wall portion 4c. An insertion hole 18 through which the suspension main body 20 can pass is inserted into the support seat 1a bottomed cylindrical portion 1b, and a through hole 19 through which the suspension main body 20 can pass through the upper wall 5a is inserted into the upper wall 5a. Holes 18, 18, and 19 are formed. The lower male screw 17 is mainly formed on a raised portion 4e that protrudes integrally at the center of the bottom wall portion 4c.

  That is, the upper support part 1 and the lower support part 2 are each provided with an upper female screw 16 and a lower male screw 17 having a common axis (vertical axis) P. The lower female screw 17 is configured to be able to be screwed to the lower male screw 22 formed at the lower end portion of the hanging jig B (see FIGS. 2 and 3) for hanging the air spring and having a substantially rod shape, and the upper female screw 16 is The suspension jig B is configured to be able to be screwed onto an upper male screw 21 formed upwardly away from the lower male screw 22. The outer diameter of the portion of the suspended body excluding the upper male screw 21 is set to be slightly smaller than the minimum inner diameter of the upper female screw 16, whereby the female screw 16 of the upper support portion 1 passes through the lower male screw 22. It is set to a possible state.

  A method for attaching a suspension jig for a vehicle air spring in which the suspension jig B is detachably mounted on the air spring A to lift the air spring A will be described. The lifting jig B shown in FIG. 3 is lifted and positioned on the axis P of the air spring A and then moved downward to perform an insertion process in which the lower male screw 22 is inserted into the upper female screw 16 of the upper support portion 1. Then, the portion other than the upper male screw 21 in the suspended body 20 passes through the upper female screw 16, the upper and lower insertion holes 18, 18, the through hole, and the center hole 11, and passes through the lower male screw 22 inserted through the female screw 16. A tightening process is performed in which the suspension jig B is turned and tightened so as to be screwed onto the female screw 17. By this tightening process, an upper screw portion na formed by screwing the upper male screw 21 and the upper female screw 16 and a lower screw portion nb formed by screwing the lower male screw 22 and the lower female screw 17 are newly formed.

  As soon as the screwing of the lower male screw 22 to the lower female screw 17 is started, the screwing of the upper male screw 21 to the upper female screw 16 is also started. At this time, since the screw pitch of the upper screw portion na is larger than the screw pitch of the lower screw portion nb, the upper support portion 1 which is in an airless state and is lowered until the sliding plate 6 and the sliding plate 12 come into contact with each other. Then, it lifts and moves relative to the lower support portion 2. When the lower screw portion nb is screwed in a predetermined amount and a mounting state is formed in which a predetermined vertical distance is formed between the sliding plate 6 and the sliding plate 12, the turning operation of the hanging jig B is stopped, as shown in FIG. Thus, the assembly | attachment (screwing) by the screwing of the hanging jig | tool B to the air spring A is completed. If the hanging jig B is set, the sliding plate 6 and the sliding plate 12 are separated from each other up and down, and even if they are oscillated or swayed during movement or transportation, they are rubbed against each other. Does not occur.

  In order to move the air spring A in which the hanging jig B shown in FIG. 2 is set, a hook (not shown) of the crane is hooked on the loop portion 23, and then the hook is lifted to lift the air spring A. The lowered air spring A is moved to a predetermined location. To remove the hanging jig B from the air spring A at the point where it is carried by a moving means such as a truck or a freight train, turn the hanging tool B in the loosening direction to release the upper and lower screws, and then only the hanging jig B Can be moved up.

  As described above, according to the vehicle air spring and the hanging jig mounting method according to the first embodiment, the following operational effects can be obtained. 1. Since the screw parts na and nb are provided on the upper and lower sides, even when the air spring A is in an airless state, the upper support part 1 and the lower support part 2 are automatically provided by the mounting operation of the hanging jig B on the air spring A. That is, it is possible to make a vertical gap between the sliding plate 6 and the sliding plate 12. And since the weight of the air spring A is supported by the hanging jig B at two places from the conventional one, the weight of the air spring is dispersedly supported and can be moved in a stable support state without deformation or distortion.

  2. Since the screw pitch of the upper screw part na is larger than that of the lower screw part nb, the upper support part 1 is lifted with respect to the lower support part 2 simply by turning the suspension jig B in the tightening direction to be attached to the air spring A. Can be moved. Accordingly, the jig mounting operation to the air spring A, the separation of the upper support portion 1 and the lower support portion 2 and the maintenance operation can be performed all at once by simply turning the hanging jig B, and airless air Even with the spring A, there is an advantage that the hanging jig B can be easily and conveniently mounted.

  3. Since the through hole 19 of the presser lid 5 and the suspension main body 20 are set so as to be closely fitted (not press-fitted, but with a very small clearance), the suspension jig B is set on the air spring A ( By mounting), it is possible to align the positions of the axial centers P of the upper support portion 1 and the lower support portion 2. If this phenomenon is utilized, when the diaphragm 3 is assembled to the upper and lower support portions 1 and 2, the upper support portion 1 and the lower support portion 2 are aligned with each other using the suspension jig B. Since it can be temporarily fixed in such a state, it is possible to obtain advantages that the upper and lower bead portions 3a and 3d can be easily fitted and mounted, and that the assembly work efficiency is improved.

  4). The lower screw portion nb is formed on the wall portion 4c, and when the air spring A is suspended, the lower support portion 2 as a stopper is lifted from the lower portion, and no tension acts on the bolt 13 that stops the presser ring 8. In the prior art (air spring A shown in FIGS. 4 and 5), since the presser lid 5 and the suspension body 20 are screwed together, when the air spring is lifted, most of the weight of the lower support portion 2 is reduced by the plurality of bolts 13. As a result, an unexpected axial force acts on the bolt 13. Therefore, conventionally, the bolt 13 has to be a strong bolt having a strength that can withstand the hanging movement. However, in the air spring A of the first embodiment, the strength (originally enough to withstand the preliminary compression of the elastic portion a). There is an advantage that a bolt having the strength of

  5). Advantages 1. ~ 4. As a result, the air spring A can be smoothly moved and transported without any inconvenience, and the work related to the production, inspection, packing, etc. of the air spring A can be simplified and the efficiency thereof can be improved. There is also.

[Another Example]
Although not shown, an air spring in which the bolt 13 for attaching the presser lid 5 is made strong and the lower female screw 17 screwed into the lower male screw 22 is formed on the presser lid 5 may be used. In this case, the hanging jig B has an advantage that it can be made smaller with a shorter length than that shown in FIG.

DESCRIPTION OF SYMBOLS 1 Upper support part 2 Lower support part 3 Diaphragm 3d Lower bead part 4 Lower support 5 Presser lid 6 Sliding plate 11 Through hole of elastic part 12 Sliding plate 16 Female screw of upper support part 17 Female screw of lower support part 19 Through hole 21 Upper male screw 22 Lower male screw A Vehicle air spring B Suspension jig P Vertical axis a Elastic part

Claims (6)

A vehicular air spring comprising a diaphragm made of an elastic material over an upper support portion on a vehicle body side and a lower support portion on a cart side disposed below the vehicle body,
The upper support portion and the lower support portion are each provided with a female screw having a common longitudinal axis, and the female screw of the lower support portion is provided at the lower end portion of the hanging jig that is substantially rod-shaped for hanging the air spring. The lower male screw is configured to be screwable and the female screw of the upper support portion is configured to be screwable to the upper male screw formed away from the lower male screw in the hanging jig. An air spring for a vehicle in which the female screw of the upper support part is set so that the lower male screw can pass therethrough.   The lower support part mounts and supports the lower bead part of the diaphragm, and supports a lower base supported on the cart side, an elastic part placed on the lower base support, and the elastic part. It is configured as an elastic stopper having a presser lid that is locked to the lower pedestal in a compressed state and is capable of placing and supporting the upper support, and the female screw of the lower support is 2. The vehicle air spring according to claim 1, wherein a through hole for allowing a lower male screw of the suspension jig to be screwed into the female screw is formed in the presser lid and the elastic portion. .   The air spring for a vehicle according to claim 2, wherein the through hole of the presser lid and the hanging jig positioned inside thereof are configured in a close fitting structure.   A sliding plate and a sliding plate are arranged separately on the lower surface of the upper supporting portion and the upper surface of the upper supporting portion, and the sliding plate and the sliding plate come into contact when the diaphragm is in an airless state. The air spring for a vehicle according to any one of claims 1 to 3, wherein the air spring is configured. In order to lift a vehicle air spring comprising a diaphragm made of an elastic material across an upper support portion on the vehicle body side and a lower support portion on the carriage side disposed below the substantially support member, A vehicle air spring hanging jig mounting method for detachably mounting a vehicle air spring,
A female screw having a common longitudinal axis is formed on each of the upper support part and the lower support part, and a lower male screw is formed on the lower end of the hanging jig, and an upper male screw is formed on the upper and lower intermediate parts. Aside,
The lower air screw inserted through the female screw of the upper support part is screwed to the female screw of the lower support part, and the upper male screw is screwed to the female screw of the upper support part, thereby the vehicle air spring. A suspension jig mounting method for an air spring for a vehicle, in which a suspension jig is equipped with a suspension jig.   As the vehicle air spring, a lower bead portion of the diaphragm is placed and supported, and a lower pedestal supported on the cart side, an elastic portion placed on the lower pedestal, and the elastic portion The lower support portion includes the lower support portion configured as an elastic stopper having a presser lid that is locked to the lower base in a pre-compressed state and that can support the upper support portion. And a through hole for allowing the lower male screw of the suspension jig to be engaged with the female screw is prepared on the presser lid and the elastic portion. 6. The method of mounting a hanging jig for a vehicle air spring according to claim 5, wherein the female screw of the upper support part and the lower male screw inserted through the through holes are screwed onto the female screw of the lower support part.

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