JP2009138905A - Air spring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel air spring for allowing the check of information for follow-up research even in an assembled condition. <P>SOLUTION: The air spring 100 comprises a laminated rubber 110 having an elastic member 113 in which a plurality of intermediate plates 112 are laid between a lower face plate 111 and an upper face plate 114, a bearing surface member 120 fixed to the upper face plate 114, a top plate 130 arranged on the upper side of the bearing surface member 120 at a space therefrom, and an elastic sleeve 140 set between the top plate 130 and the bearing surface member 120 to form an air chamber therebetween. On a lower face 114f of the upper face plate 114, an individual identifying information medium M1 is provided which records information for follow-up research. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air spring for suppressing vibration and noise, for example, by interposing between a vehicle body and a chassis of a railway vehicle.

In a conventional air spring, a laminated elastic body provided with an elastic member having a plurality of intermediate plates interposed between a lower surface plate and an upper surface plate, and a seat member fixed to the upper surface plate of the laminated elastic body A top plate disposed at an upper portion of the seat member, and an elastic sleeve that is stretched between the top plate and the seat member to form an air chamber therebetween. (For example, refer to Patent Document 1).
JP 2007-046649 A

  On the other hand, in order to maintain and improve products, it is important to conduct a follow-up survey of products that have entered the distribution process. For this reason, it is common to attach a mark for individual identification (traceability) represented by a serial number in which information for tracking investigation is described at the time of product shipment.

  The individual identification mark is preferably attached at a position where it can be easily seen from the purpose of use. For this reason, in the case of an air spring, if a mark for individual identification is attached to the upper surface of the top plate, the mark is easily visible and effective.

  However, when it is attached to the upper surface of the top plate, it is easy to visually recognize it before assembly, but cannot be visually recognized after assembly.

  The present invention has been made based on the recognition of such facts, and an object of the present invention is to provide a novel air spring capable of confirming information for follow-up investigation even in an assembled state. It is in.

  The air spring according to the present invention includes a laminated elastic body provided with an elastic member having a plurality of intermediate plates interposed between a lower surface plate and an upper surface plate, and a seating surface fixed to the upper surface plate of the laminated elastic body. A member, a top plate arranged at an upper portion of the seat member, and an elastic sleeve stretched between the top plate and the seat member to form an air chamber therebetween. In the air spring, an individual identification display section is formed on at least one of the upper surface of the lower surface plate, the lower surface of the upper surface plate, and the lower surface of the seat surface member.

  Examples of the foundation on which the bottom plate is fixed include a chassis and a frame that support the vehicle body of a railway vehicle. Moreover, what consists of metal materials represented by aluminum alloy, iron, etc. are mentioned as a lower surface board, an intermediate | middle board, and an upper surface board. Furthermore, examples of the elastic material include vulcanized rubber and thermoplastic elastomer.

  According to the present invention, the upper surface plate can be formed to have a larger outer dimension than the intermediate plate, and the individual identification display portion can be formed on the lower surface of the region bulged from the intermediate plate.

  Further, according to the present invention, the seat surface member can be formed to have a larger outer dimension than the intermediate plate, and the individual identification display portion can be formed on the lower surface of the region bulged from the intermediate plate.

  Furthermore, the individual identification display unit according to the present invention is an information medium capable of recording information, and the information recorded on the information medium includes information on at least one of the components constituting the air spring. Preferably it is.

  In addition, the information medium according to the present invention includes a medium in which information to be recorded is expressed as characters, numbers, symbols, or figures such as engravings, prints, display plates, and barcodes.

  In addition, the information medium according to the present invention may be one in which information to be recorded is incorporated as a circuit, such as an IC chip.

  According to the air spring of the present invention, for example, the individual identification display part can be formed on at least one of the upper surface of the lower surface plate, the lower surface of the upper surface plate, and the lower surface of the seating surface member. Even in the state of being assembled to the foundation or the like, the individual identification information can be visually recognized or detected from the lower side of the foundation. Therefore, according to the present invention, it is possible to confirm the information for the follow-up survey without performing the complicated work of removing for the follow-up survey.

  In the present invention, if the upper surface plate is formed to have a larger outer dimension than the intermediate plate, and the individual identification display portion is formed on the lower surface of the region bulged from the intermediate plate, the upper surface or the seat surface of the lower surface plate Even when the individual identification information cannot be visually recognized or detected from the lower surface of the member, the individual identification information can be visually recognized or detected at least from the lower surface of the upper surface plate.

  In the present invention, if the seat member is formed to have a larger outer dimension than the intermediate plate, and the individual identification display portion is formed on the lower surface of the region bulged from the intermediate plate, the upper surface of the lower plate Even when the individual identification information cannot be visually recognized or detected from the lower surface of the upper surface plate, at least the individual identification information can be visually recognized or detected from the lower surface of the seat member.

  Furthermore, in the present invention, if the individual identification display unit is an information medium capable of recording information, it is possible to store the history of the members constituting the air spring, and always hold necessary data. And the data can be extracted arbitrarily.

  Further, if the information to be recorded on the information medium includes at least one information of components constituting the air spring, for example, when information on all the components of the air spring is centrally managed in a database, It is possible to track the history of all the components with one component constituting the spring.

  In addition, if information that represents information to be recorded as characters, numbers, symbols, or figures, such as stamps, prints, display plates, barcodes, etc., is used as the information medium according to the present invention, simple tracking is inexpensive. Can be realized.

  In addition, if an information medium according to the present invention, in which information to be recorded is incorporated as a circuit, such as an IC chip or the like, a large amount of information can be given to a narrow space, thereby saving space while saving space. Can be tracked.

  Hereinafter, a laminated vibration isolator according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a cross-sectional view showing an air spring 100 for a railway vehicle, which is an embodiment of the present invention. 2A and 2B are a plan view and a cross-sectional view showing one half of a laminated rubber (laminated elastic body) 110 constituting a part of the air spring 100 from above.

  Reference numeral 111 denotes a bottom plate fixed to a chassis or a frame that is a base member. The bottom plate 111 is composed of a circular substrate 111a and a nozzle 111b that is arranged in the center of the substrate 111a and communicates with an auxiliary tank (not shown), and constitutes the bottom plate of the laminated rubber 110 together with the bottom plate of the air spring 100. To do.

  Reference numeral 112 denotes a plurality of intermediate plates that are alternately arranged on the upper surface of the lower surface plate 111 together with the elastic member 113. Each of the intermediate plates 112 is an annular member having substantially the same outer diameter as that of the lower surface plate 111.

  Reference numeral 114 denotes an upper surface plate disposed on the upper portion of the intermediate plate 112 located at the uppermost portion of the intermediate plate 112 via an elastic member 113. The upper surface plate 114 is an annular body that has a larger outer diameter than the intermediate plate 112 and bulges by an annular region A from the intermediate plate 112. A fixing bolt B1 is also fixed to the upper surface plate 114 in an upright state.

  That is, the laminated rubber 110 is a unit fixed and held by the elastic member 113 as shown in FIG. In forming the laminated rubber 110, for example, a plurality of intermediate plates 112 are arranged with a space between the lower surface plate 111 and the upper surface plate 114, and these are represented by vulcanized rubber that can be deformed and restored. Molded integrally with elastic material.

  Reference numeral 120 in FIG. 1 is a seating surface member fixed to the upper surface plate 114 of the laminated rubber 110. The seat member 120 is bolted to the upper surface plate 114 by a fixing bolt B1. In the center of the seat member 120, a throttle passage 120a that leads to a space R1 formed inside the laminated rubber 110 is formed.

  Reference numeral 130 denotes a top plate that is arranged at an upper portion of the seat member 114 and that receives a vehicle body (not shown).

  Reference numeral 140 denotes an elastic sleeve which is stretched between the top plate 114 and the seat member 120 and forms an air chamber R2 therebetween. The elastic sleeve 140 is made of a rubber material that can be deformed and restored, and is an annular body that is arranged so as to bulge from the outer peripheral edge 114a over the entire outer peripheral edge 114a of the upper surface plate 114. The elastic sleeve 140 may employ a bellows, a flexible film, or the like as long as it can be deformed and restored.

  The top plate 130 is connected in an airtight state via an elastic support member (rubber support member) 132 having a sliding sheet 131 made of a synthetic resin (for example, polyethylene) having a small friction coefficient. In addition, the top plate 130 is provided with a supply / discharge nozzle 133 for adjusting the internal pressure of the entire air spring at the center thereof.

  In this embodiment, the elastic sleeve 140 is bulged from the outer peripheral edge 114a of the upper surface plate 114 between the upper surface plate 114 and the seat surface member 120, and the bulging portion P of the elastic sleeve 140 is maintained. A bead seat 150 is provided.

  The bead seat 150 is made of a rigid body such as metal, and is integrally connected between the seat body 151 fixed to the upper surface plate 114 and the seat body 151 and the elastic sleeve 140, and can be deformed and restored. And an elastic holding portion 152 made of rubber or the like. Thus, the bead receiving seat 150 is disposed between the upper surface plate 114 and the elastic sleeve 140 and supports the lower surface of the elastic sleeve 140 together with the upper surface plate 114 so that the bulging portion P of the elastic sleeve 140 is maintained. .

  According to the air spring 100 having such a configuration, by appropriately adjusting the air supply / exhaust to the internal spaces R1 and R2, it is possible to support the vehicle body with respect to the chassis (frame) while reducing noise and vibration. it can.

  In the present embodiment, the information medium M1 as an individual identification display unit in which information for follow-up investigation is recorded on the lower surface of the annular region A that bulges from the intermediate plate 112 in the lower surface 114f of the upper surface plate 114. Is provided.

  The information recorded on the information medium M1 includes the manufacturing number (serial number) as the air spring 100, for example, the manufacturing inspection history of the air spring and the inspection result.

  The production inspection history includes, for example, the vulcanization date, rubber kneading date, kneading rubber inspection (rapid last in-line inspection, specific gravity inspection), extrusion work results table for rubber materials used for laminated rubber 110, elastic sleeve 140, etc. (Production date), information regarding these molding dates and the results of crimping inspections, dimensional inspection results, assembling dates and assembly inspection dates of the molder, air bag and the like.

  The inspection results include, for example, information on the product number, inspection date, inspection result, order number, mounted vehicle type and number of deliveries, and information to that effect if there are outsourced parts.

  Such information preferably covers all the parts constituting the air spring 100, but it is sufficient that information on at least one of the constituent parts is included.

  Examples of the information medium M1 include a medium in which information to be recorded is expressed as characters, numbers, symbols, and figures, such as engraving, printing, display plates, barcodes, and the like.

  Further, the information medium M1 may be a medium in which information to be recorded is incorporated as a circuit, such as an IC chip.

  That is, according to this embodiment, since the information medium M1 can be formed on the lower surface 114f of the upper surface plate 114, even if the information medium M1 is still attached to the foundation such as a chassis or a frame, the individual identification information is stored in the foundation. Can be viewed or detected from below. Therefore, according to the present embodiment, it is possible to confirm the information for the follow-up survey without performing a complicated operation of removing for the follow-up survey.

  Therefore, according to the air spring 100 of this embodiment, the information for the follow-up survey can be confirmed without performing a complicated operation of removing for the follow-up survey.

  Further, in this embodiment, the upper surface plate 114 is formed to have a larger outer diameter than the lower surface plate 111 and the intermediate plate 112, and the information medium is formed on the lower surface of the annular region A bulging from the lower surface plate 111 and the intermediate plate 112. If M1 is formed, even if the information medium M1 cannot be visually recognized or detected from the upper surface 111F of the lower surface plate 111 or the lower surface of the seat member 120 as in the present embodiment, the intermediate plate of the lower surface 114f of the upper surface plate 114 The individual identification information can be visually recognized or detected from the lower surface of the region A bulging from 112.

  Similarly, instead of this embodiment, the seat surface member 120 is formed to have a larger outer diameter than the intermediate plate 112, and the annular surface of the lower surface 120f of the seat surface member 120 bulges from the intermediate plate 112. An information medium M1 may be formed on the lower surface. In this case, even if the information medium M1 cannot be visually recognized or detected from the upper surface 111F of the lower surface plate 111 or the lower surface 114f of the upper surface plate 114, the information medium M1 can be visually recognized or detected from the lower surface 120f of the seat member 120. .

  In the above description, the upper surface plate 114 and the seat surface member 120 have only been described to have a larger outer diameter than the intermediate plate 112, but due to the structure of the laminated rubber 110, the outer diameter of the lower surface plate 111 is The outer diameter of the intermediate plate 112 does not become larger. For this reason, at least the upper surface plate 114 and the seat surface member 120 can be viewed from below if the outer diameters of the upper surface plate 114 and the seat surface member 120 are larger than the outer diameter of the intermediate plate 112.

  In the above description, the upper surface plate 114 and the seat surface member 120 have been described as having a larger outer diameter than the intermediate plate 112. However, according to the present invention, the upper surface plate 114 or the seat surface member. 120 can be formed to have an outer dimension larger than that of the intermediate plate 112, and the information medium M1 can be formed on the lower surface of a local region that bulges from the intermediate plate 112. Alternatively, it may be the lower surface of a portion that locally bulges from the upper surface plate 114 or the seat surface member 120.

  Further, if the individual identification display unit is an information medium M1 on which information can be recorded as in the present embodiment, it is possible to store the histories of the members constituting the air spring 100, and to store necessary data. While being able to always hold | maintain, the said data can be taken out arbitrarily.

  Further, as in the present embodiment, if the information to be recorded on the information medium M1 includes information on at least one of the components constituting the air spring 100, for example, information on all the components of the air spring 100 is stored in the database. In the case of centralized management, it is possible to track the history of all the component parts with one component constituting the air spring 100.

  In addition, as information medium M1 according to the present invention, if information that should be recorded is expressed as letters, numbers, symbols or figures, such as stamps, prints, display plates, barcodes, etc., simple tracking is possible. It can be realized at low cost.

  In addition, if the information medium M1 according to the present invention is a circuit in which information to be recorded, such as an IC chip, is incorporated as a circuit, a large amount of information can be imparted to a narrow space, and details are achieved while saving space. Can be tracked.

  Although the air spring 100 in FIG. 1 has been described as an anisotropic air spring having an asymmetric cross-sectional shape, it may be isotropic with a symmetrical cross-sectional shape as shown in FIG. This is because the difference in configuration is merely a difference in whether the load distribution applied to the air spring 100 is locally biased or uniform, and does not affect the gist of the present invention. In the case of the isotropic air spring shown in FIG. 3, the sliding sheet 131 is not attached.

  Although the above description is to describe the preferred embodiment of the present invention, various modifications can be made within the scope of the claims. For example, the information medium M1 may be provided on the lower surface 111f of the lower surface plate 111 or the lower surface 152f of the seat member 152 without being limited to the lower surface 111f of the upper surface plate 111. The medium supplied to and discharged from the air spring 100 is also formally air, but is not limited to this, and various gases can be appropriately selected.

  The present invention is not limited to air springs for railway vehicles, but can be used in various technical fields that require anti-vibration technology, such as air springs for automobiles and architectural relations.

It is sectional drawing which shows the air spring for rail vehicles which is one form of this invention. (a), (b) is the top view which shows the half side of the laminated rubber which comprises the same air spring from the upper part, and its sectional drawing, respectively. It is sectional drawing which shows the air spring for rail vehicles which is the other form of this invention.

Explanation of symbols

100 air spring
111 Bottom plate
111a substrate
111b nozzle
111f Bottom plate bottom surface
112 Intermediate plate
113 Elastic member
114 Top plate
114F Top plate top surface
114f Top plate bottom surface
114a Top plate outer periphery
114f Top plate bottom surface
120 Seat member
120a Restricted passage
120f Underside member
130 Top panel
131 Sliding sheet
132 Elastic support member (rubber support member)
133 Supply / discharge nozzle
140 Elastic sleeve
110 Laminated rubber (Laminated elastic body)
150 Bead seat
151 Seat body
152 Elastic holding part M1 Information medium

Claims (6)

A laminated elastic body provided with an elastic member having a plurality of intermediate plates interposed between the lower surface plate and the upper surface plate;
A seat member fixed to the upper surface plate of the laminated elastic body;
A top plate arranged at an interval above the seat member,
In an air spring comprising an elastic sleeve stretched between the top plate and the seat member and forming an air chamber therebetween,
An air spring, wherein an individual identification display portion is formed on at least one of the upper surface of the lower surface plate, the lower surface of the upper surface plate, and the lower surface of the seat surface member.   2. The air spring according to claim 1, wherein the upper surface plate is formed larger in outer dimension than the intermediate plate, and the individual identification display portion is formed on a lower surface of a region bulging from the intermediate plate.   2. The air spring according to claim 1, wherein the seat member has an outer dimension larger than that of the intermediate plate, and the individual identification display portion is formed on a lower surface of a region bulged from the intermediate plate. .   4. The individual identification display unit according to claim 1, wherein the individual identification display unit is an information medium capable of recording information, and the information recorded on the information medium includes at least one of components constituting an air spring. An air spring characterized in that information for one is included.   5. The air spring according to claim 4, wherein the information medium represents information to be recorded as letters, numbers, symbols, and figures.   5. The air spring according to claim 4, wherein the information medium incorporates information to be recorded as a circuit.

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