WO2004098956A1 - Shock absorber, particularly for commercial vehicles or the like - Google Patents

Shock absorber, particularly for commercial vehicles or the like Download PDF

Info

Publication number
WO2004098956A1
WO2004098956A1 PCT/IT2004/000058 IT2004000058W WO2004098956A1 WO 2004098956 A1 WO2004098956 A1 WO 2004098956A1 IT 2004000058 W IT2004000058 W IT 2004000058W WO 2004098956 A1 WO2004098956 A1 WO 2004098956A1
Authority
WO
WIPO (PCT)
Prior art keywords
shock absorber
shoe
loading
vehicle
wall
Prior art date
Application number
PCT/IT2004/000058
Other languages
French (fr)
Inventor
Pasquale Lorusso
Giuseppe Lorusso
Original Assignee
Bawer S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bawer S.R.L. filed Critical Bawer S.R.L.
Priority to DE602004007261T priority Critical patent/DE602004007261T2/en
Priority to EP04710962A priority patent/EP1625049B1/en
Priority to US10/556,035 priority patent/US20070007701A1/en
Publication of WO2004098956A1 publication Critical patent/WO2004098956A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F16F1/44—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded mainly in compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/001—Buffers for vehicles at loading stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R2019/026—Buffers, i.e. bumpers of limited extent

Definitions

  • Shock absorber particularly for commercial vehicles or the like
  • the present finding relates to an improved shock absorber to be used in particular in the bodies of trucks and/or transport motor vehicles, i.e. a device which absorbs the shocks as a truck or the like approaches a loading platform and is able to overcome all of the problems caused by the height difference between the vehicle and the loading platform upon loading/unloading .
  • trucks of the state of art are provided with shock absorbers consisting of cylinders rotating about a horizontal axis, as disclosed in Patent EP 0 648 644, or cylinder with a vertical axis, or rubber ball bodies housed in suitable recesses arranged in the bumper or the shock absorber of the vehicle in which such ball bodies are able to rotate.
  • the main object of the finding is then to overcome such problems by providing a shock absorber provided with protected dampening means which is able to fully absorb or at least to limit the harmful effects of shocks in the axial direction, such as for example those that might occur as the truck approaches a loading platform.
  • a shock absorber or buffer for truck characterized in that there is provided at least one support or contact member which is connected to a fixed member by mechanical connecting means of dampening material which allows such support member to shift axially by changing its distance with respect to such fixed member.
  • such support member acts as a "sliding shoe” for side shifts between the shock absorber and the contact surface to which the former rests or is pressed, as well as for axial shifts to absorb changes of distance between the vehicle and the wall of the loading platform.
  • Figures 1 and 2 are perspective front and rear views of the finding, respectively.
  • Figures 3 and 4 are exploded, front and rear views of the finding, respectively.
  • the disclosed shock absorber includes, in combination, a preferably box-like fixed member 4 with an essentially parallelepiped shape provided with a front cover 16 and a rear base 6 as well as with one or more dampening members 10 which are kept in their positions by a suitable spacer 8 that is free of moving to a direction perpendicular to the rear base 6 and the box-like fixed member 4, the support member or front shoe 1 made preferably of an antifriction material or other material able to slide on the surfaces on which it rests being rigidly connected to such spacer 8.
  • such contact shoe 1 is able to shift perpendicular to its contact surface and to absorb resiliently any shock as the vehicle approaches the wall of the loading platform, as well as the little distance changes that can occur upon loading/unloading if the wall of the loading platform is not perfectly even and/or parallel to the loading body of the vehicle.
  • the shoe has bevelled, rounded corners to ensure the greatest ease of sliding on the wall of the loading platform in case side shifts of the shoe occur upon loading/unloading.
  • the shock absorber disclosed can be installed preferably at the rear end of the loading body of a vehicle, however, it can also be installed with the same effectiveness of operation and without any modification to the wall of the loading platform which the vehicles have to approach.
  • the dampening means consists of preferably tubular cylinders 10 of elastic material which are capable of being deformed by reducing their height by the compression exerted by shoe 1 connected thereto.
  • shoe 1 is secured to the dampening means by a spacer 8.
  • shoe 1 is firmly secured to one end of each elastic member 10, and the latter is connected with its opposite end to the fixed base 6 of the shock absorber.
  • the elastic action of each dampening member 10 is performed by a temporary relative shift of shoe 1 that approaches the fixed base 6 and then leaves it up to the rest position.
  • spacer 8 in order to guide shoe 1 inside the box-like body of the shock absorber, spacer 8 has an outer cylindrically shaped body matching the inner cylindrical shape of the box-like fixed body 4 so that the side shifts are limited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Vibration Dampers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A shock absorber to absorb the shocks caused when a transport motor vehicle, a truck or the like approaches the vertical wall of a loading platform or to absorb changes of distance between the vehicle and the wall of the loading platform upon loading/unloading, including at least one support or contact member (1) which is connected to a fixed member (6) by mechanical connecting means (10) of dampening material which allows said support member to shift axially by changing its distance with respect to said fixed (6) member of the shock absorber.

Description

Shock absorber, particularly for commercial vehicles or the like
The present finding relates to an improved shock absorber to be used in particular in the bodies of trucks and/or transport motor vehicles, i.e. a device which absorbs the shocks as a truck or the like approaches a loading platform and is able to overcome all of the problems caused by the height difference between the vehicle and the loading platform upon loading/unloading . As an alternative to the fixed rubber bumper installed to the horizontal rear body and/or to the end of chassis, trucks of the state of art are provided with shock absorbers consisting of cylinders rotating about a horizontal axis, as disclosed in Patent EP 0 648 644, or cylinder with a vertical axis, or rubber ball bodies housed in suitable recesses arranged in the bumper or the shock absorber of the vehicle in which such ball bodies are able to rotate.
However, all of the above-mentioned solutions do not fully satisfy the requirements of users as they are not able to absorb any unevenness of the contact surface. In known devices, if the wall against which the rear portion of the truck body rests is shifted upwards or downwards because of a load change, the distance between the resting wall and the truck could be reduced, thus providing axial stresses that could possibly damage the shock absorber. Moreover, the functionality of such shock absorbers provided with rotating members is strictly bound to the necessity that such rotating members keep the capability of a free rotation in time, however such rotation is often hampered by the undesired accumulation of debris and/or dirt caused both by the loading/unloading and the road circulation (mud, dust, etc . ) .
The main object of the finding is then to overcome such problems by providing a shock absorber provided with protected dampening means which is able to fully absorb or at least to limit the harmful effects of shocks in the axial direction, such as for example those that might occur as the truck approaches a loading platform.
This has been accomplished according to the present finding by providing a shock absorber or buffer for truck, characterized in that there is provided at least one support or contact member which is connected to a fixed member by mechanical connecting means of dampening material which allows such support member to shift axially by changing its distance with respect to such fixed member. According to the disclosed finding, such support member acts as a "sliding shoe" for side shifts between the shock absorber and the contact surface to which the former rests or is pressed, as well as for axial shifts to absorb changes of distance between the vehicle and the wall of the loading platform. An embodiment of the finding is shown only by way of a not limiting example in the accompanying drawings in which:
Figures 1 and 2 are perspective front and rear views of the finding, respectively; and
Figures 3 and 4 are exploded, front and rear views of the finding, respectively.
Referring particularly to the above Figures, the disclosed shock absorber includes, in combination, a preferably box-like fixed member 4 with an essentially parallelepiped shape provided with a front cover 16 and a rear base 6 as well as with one or more dampening members 10 which are kept in their positions by a suitable spacer 8 that is free of moving to a direction perpendicular to the rear base 6 and the box-like fixed member 4, the support member or front shoe 1 made preferably of an antifriction material or other material able to slide on the surfaces on which it rests being rigidly connected to such spacer 8. According to the finding, such contact shoe 1 is able to shift perpendicular to its contact surface and to absorb resiliently any shock as the vehicle approaches the wall of the loading platform, as well as the little distance changes that can occur upon loading/unloading if the wall of the loading platform is not perfectly even and/or parallel to the loading body of the vehicle. Moreover, the shoe has bevelled, rounded corners to ensure the greatest ease of sliding on the wall of the loading platform in case side shifts of the shoe occur upon loading/unloading. At last, it should be appreciated that the shock absorber disclosed can be installed preferably at the rear end of the loading body of a vehicle, however, it can also be installed with the same effectiveness of operation and without any modification to the wall of the loading platform which the vehicles have to approach. Of course, in the latter case, the height at which the shock absorber is secured depends on the model of vehicle which will approach. According to a peculiar characteristics of the finding, the dampening means consists of preferably tubular cylinders 10 of elastic material which are capable of being deformed by reducing their height by the compression exerted by shoe 1 connected thereto. In the embodiment shown, shoe 1 is secured to the dampening means by a spacer 8. In other words, shoe 1 is firmly secured to one end of each elastic member 10, and the latter is connected with its opposite end to the fixed base 6 of the shock absorber. Thus, the elastic action of each dampening member 10 is performed by a temporary relative shift of shoe 1 that approaches the fixed base 6 and then leaves it up to the rest position.
It should be noted that, in order to guide shoe 1 inside the box-like body of the shock absorber, spacer 8 has an outer cylindrically shaped body matching the inner cylindrical shape of the box-like fixed body 4 so that the side shifts are limited.
The present invention has been described and illustrated according to a preferred embodiment thereof, however, it should be understood that anyone skilled in the art can make technically, functionally equivalent modifications and/or replacements without departing from the scope of the present industrial invention .

Claims

Claims
1. A shock absorber to absorb the shocks caused when a transport motor vehicle, a truck or the like approaches the vertical wall of a loading platform or to absorb changes of distance between the vehicle and the wall of the loading platform upon loading/unloading, characterized in that there is provided at least one support or contact member (1) which is connected to a fixed member (6) by mechanical connecting means (10) of dampening material which allows said support member to shift axially by changing its distance with respect to said fixed member (6) of the shock absorber.
2. The shock absorber according to the preceding claim, characterized in that said support member (1) acts as a "sliding shoe" for side shifts between the shock absorber and the contact surface to which the former rests or is pressed, as well as for axial shifts to absorb changes of distance between the vehicle and the wall of the loading platform.
3. The shock absorber according to claim 1, characterized in that it includes, in combination, a box-like member (4) with an essentially parallelepiped shape provided with a front cover (16) and a rear base (6) as well as with one or more dampening members (10) which are kept in their positions by a suitable spacer (8) that is free of moving to a direction perpendicular to the rear base (6) and the box-like fixed member (4) , support member or front shoe (1) made preferably of an antifriction material or other material able to slide on the surfaces on which it rests being rigidly connected to said spacer (8) .
4. The shock absorber according to the preceding claim, characterized in that said contact shoe (1) is able to shift perpendicular to its contact surface and to absorb resiliently any shock as the vehicle approaches the wall of the loading platform, as well as the little distance changes that can occur upon loading/unloading when the wall of the loading platform is not perfectly even and/or parallel to the loading body of the vehicle.
5. The shock absorber according to claim 1, characterized in that said support member or shoe (1) has bevelled, rounded corners to ensure the greatest ease of sliding on the wall of the loading platform in case side shifts of the shoe occur upon loading/unloading.
6. The shock absorber according to any preceding claim, characterized in that it is installed at the rear end of the loading body of a vehicle.
7. The shock absorber according to any claim 1 to 5, characterized in that it is installed to the wall of the loading platform which the loading bodies of the vehicles have to approach, the height at which the shock absorber is applied depending in this case on the model of vehicle which will approach.
8. The shock absorber according to any preceding claim, characterized in that said dampening means consists of preferably tubular cylinders (10) of elastic material which are capable of being deformed by reducing their height by the compression exerted by shoe (1) connected thereto which moves with respect to the fixed member (6) .
9. The shock absorber according to the preceding claim, characterized in that the support member or shoe (1) is firmly secured to one end of each said dampening member (10) , and the latter is connected with its opposite end to the fixed base (6) of the shock absorber.
10. The shock absorber according to claim 3 or 4, characterized in that, in order to guide shoe (1) inside the box-like body (4) of the shock absorber, spacer (8) has an outer cylindrically shaped body matching the inner cylindrical shape of the box-like fixed body (4) so that the side shifts of shoe (1) are limited.
PCT/IT2004/000058 2003-05-09 2004-02-13 Shock absorber, particularly for commercial vehicles or the like WO2004098956A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE602004007261T DE602004007261T2 (en) 2003-05-09 2004-02-13 SHOCK ABSORBER, ESPECIALLY FOR COMMERCIAL VEHICLE
EP04710962A EP1625049B1 (en) 2003-05-09 2004-02-13 Shock absorber, particularly for commercial vehicles or the like
US10/556,035 US20070007701A1 (en) 2003-05-09 2004-02-13 Shock absorber, particularly for commercial vehicles or the like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM2003U000083 2003-05-09
IT000083U ITRM20030083U1 (en) 2003-05-09 2003-05-09 CUSHIONED BUMPER, IN PARTICULAR FOR COMMERCIAL VEHICLES OR SIMILAR.

Publications (1)

Publication Number Publication Date
WO2004098956A1 true WO2004098956A1 (en) 2004-11-18

Family

ID=29560929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2004/000058 WO2004098956A1 (en) 2003-05-09 2004-02-13 Shock absorber, particularly for commercial vehicles or the like

Country Status (7)

Country Link
US (1) US20070007701A1 (en)
EP (1) EP1625049B1 (en)
AT (1) ATE365656T1 (en)
DE (1) DE602004007261T2 (en)
ES (1) ES2289485T3 (en)
IT (1) ITRM20030083U1 (en)
WO (1) WO2004098956A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006063394A1 (en) * 2004-12-15 2006-06-22 Labrricon Pty Ltd Protector
FR2882980A1 (en) * 2005-03-10 2006-09-15 Lamberet Const Isothermes Sa ACCOMMODATION BUTOR
EP1775172A2 (en) 2005-10-14 2007-04-18 GM Global Technology Operations, Inc. Device for absorbing shocks
FR3019246A1 (en) * 2014-03-31 2015-10-02 Pommier SHOCK ABSORBER SHOCK ABSORBER ARRANGEMENT ON A SUPPORT SUCH AS A DOCK

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107839634A (en) * 2017-10-16 2018-03-27 安卡精密机械（天津）股份有限公司 A kind of bumper
GB2589696B (en) * 2020-08-25 2022-01-12 Gray & Adams Ltd Bumper apparatus and method of manufacturing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888986A1 (en) * 1997-06-27 1999-01-07 Stertil B.V. Bumper device
FR2767508A1 (en) * 1997-08-22 1999-02-26 Fichet Sa Loading buffer for cargo motor vehicle
FR2804644A1 (en) * 2000-02-04 2001-08-10 Stephane Hubert Cushion pad for absorbing loading bay shocks at truck rear comprises block of resilient material which carries cage with housing for rotating ball
DE10003744A1 (en) * 2000-01-28 2001-10-11 Arnold Verladesysteme Buffer for HGV loading station is attached to wall (3) and consists of bow-shaped leaf spring with fixed top edge and loose bottom edge, series of rubber bellows being arranged between spring and wall

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991537A (en) * 1973-08-20 1976-11-16 Brown Russell L Chair rail
US4548150A (en) * 1982-08-11 1985-10-22 Drewett Glen E Readily replaceable bumper guard support and bumper for water covered areas
US6120871A (en) * 1995-09-18 2000-09-19 Frommelt Industries Of Canada Inc. Loading dock bumpers
US5661934A (en) * 1996-03-20 1997-09-02 Cr Industries, Inc. Loading dock bumper
US5775044A (en) * 1996-05-07 1998-07-07 Styba; Loren K. Loading dock having a split dock seal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888986A1 (en) * 1997-06-27 1999-01-07 Stertil B.V. Bumper device
FR2767508A1 (en) * 1997-08-22 1999-02-26 Fichet Sa Loading buffer for cargo motor vehicle
DE10003744A1 (en) * 2000-01-28 2001-10-11 Arnold Verladesysteme Buffer for HGV loading station is attached to wall (3) and consists of bow-shaped leaf spring with fixed top edge and loose bottom edge, series of rubber bellows being arranged between spring and wall
FR2804644A1 (en) * 2000-02-04 2001-08-10 Stephane Hubert Cushion pad for absorbing loading bay shocks at truck rear comprises block of resilient material which carries cage with housing for rotating ball

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006063394A1 (en) * 2004-12-15 2006-06-22 Labrricon Pty Ltd Protector
US7810857B2 (en) 2004-12-15 2010-10-12 Labrricon Pty Ltd Protector
FR2882980A1 (en) * 2005-03-10 2006-09-15 Lamberet Const Isothermes Sa ACCOMMODATION BUTOR
EP1700749A3 (en) * 2005-03-10 2007-04-18 Lamberet Constructions Isothermes Docking buffer
EP1775172A2 (en) 2005-10-14 2007-04-18 GM Global Technology Operations, Inc. Device for absorbing shocks
DE102005049149A1 (en) * 2005-10-14 2007-04-19 GM Global Technology Operations, Inc., Detroit Device for impact damping
EP1775172A3 (en) * 2005-10-14 2008-03-05 GM Global Technology Operations, Inc. Device for absorbing shocks
DE102005049149B4 (en) * 2005-10-14 2014-10-30 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Device for impact damping
FR3019246A1 (en) * 2014-03-31 2015-10-02 Pommier SHOCK ABSORBER SHOCK ABSORBER ARRANGEMENT ON A SUPPORT SUCH AS A DOCK

Also Published As

Publication number Publication date
EP1625049B1 (en) 2007-06-27
US20070007701A1 (en) 2007-01-11
DE602004007261T2 (en) 2008-03-06
ATE365656T1 (en) 2007-07-15
EP1625049A1 (en) 2006-02-15
ITRM20030083V0 (en) 2003-05-09
DE602004007261D1 (en) 2007-08-09
ITRM20030083U1 (en) 2004-11-10
ES2289485T3 (en) 2008-02-01

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