Impact absorbing type bumper

Claim 2

An impact absorbing type bumper in combination with a vehicle body frame, comprising: an impact receiving member located a distance from the end of the vehicle body frame, said impact receiving member being securely attached to at least one shock absorber mounted to the vehicle body frame, said impact receiving member comprising a central beam section and two side sections, said central beam section having a channel-like cross section and having a front portion, an upper portion and a lower portion, said upper portion and said lower portion extending toward the vehicle body frame from said front portion to form said channel-like cross section; an apron in the form of a rigid plate having one end attached to the vehicle body, said apron bridging a space between said impact receiving member and the end of the vehicle body, said apron having a flange portion at the other end thereof which extends toward said impact receiving member to juxtapose said impact receiving member; and an elastomeric spacer disposed between and mounted to one of said apron and said impact receiving member to prevent direct contact of said apron with said impact receiving member and arranged to be inward of said flange portion and spaced from the other one of said apron and impact receiving member and so that relative movement between said impact receiving member and said apron in the direction of said vehicle body frame can occur without contact between said elastomeric spacer and said other of said apron and impact receiving member throughout the full compression of said at least one shock absorber.

Claim 3

An impact absorbing type bumper as claimed in claim 1, in which said elastomeric spacer is directly attached to said impact receiving member.

Claim 4

An impact receiving type bumper as claimed in claim 1, in which said elastomeric spacer is attached to said impact receiving member by means of a bracket.

Claim 5

An impact absorbing type bumper as claimed in claim 1, in which said elastomeric spacer has an elastomeric member with a portion press fitted into said upper portion of said central beam section.

Claim 6

An impact absorbing type bumper as claimed in claim 1, in which said elastomeric spacer comprises a stud bolt securely attached to said upper portion of said central beam section by a nut and an elastomeric member adhered to said stud bolt.

Claim 7

An impact absorbing type bumper as claimed in claim 1, in which said elastomeric spacer comprises: an L-shaped bracket having a first portion securely attached to said central beam section and a second portion extending generally perpendicularly from said first portion; an elastomeric member adhered to said second portion of said L-shaped bracket.

Claim 8

An impact absorbing type bumper as claimed in claim 1, in which said elastomeric spacer comprises: an elastomeric member adhered to said apron and positioned over said upper portion of said central beams section.

Claim 9

An impact absorbing type bumper as claimed in claim 1, in which said elastomeric spacer comprises an elongate elastomeric member disposed on an upper portion of said central beam section of said impact receiving member and extending along said central beam section.

Claim 10

An impact absorbing type bumper as claimed in claim 1, in which said elastomeric spacer comprises a plurality of plug-shaped elastomeric members disposed on an upper portion of said central beam section of said impact receiving member and spaced along said central beam section.

Claim 11

An impact absorbing type bumper in combination with a vehicle body frame, comprising: an impact receiving member located a distance from the end of the vehicle body frame, said impact receiving member being securely attached to at least one shock absorber mounted to the vehicle body frame, said impact receiving member comprising a central beam section and two side sections, said central beam section having a channel-like cross section and having a front portion, an upper portion including a first flange, and a lower portion, said upper portion and said lower portion extending toward the vehicle body frame from said front portion to form said channel-like cross section; an apron in the form of a rigid plate having one end attached to the vehicle body, said apron bridging a space between said impact receiving member and the end of the vehicle body; and an elastomeric spacer disposed between said apron and said impact receiving member to prevent direct contact of said apron with said impact receiving member; said elastomeric spacer comprising: an L-shaped bracket having a first portion formed with a bolt receiving aperture and a second portion extending generally perpendicularly from said first portion and said first portion having at one end thereof a flange extending in the same direction as said second portion does; a stud bolt and a nut means for securely attaching said first portion of said L-shaped bracket to said first flange of said central beam section with said flange of said L-shaped bracket engaging an edge of said first flange of said central beam section and with said second portion of said L-shaped bracket disposed over said upper portion of said central beam section; and an elastomeric member adhered to said second portion of said L-shaped bracket.

Claim 12

An impact absorbing type bumper in combination with a vehicle body frame, comprising: an impact receiving member located a distance from the end of the vehicle body frame, said impact receiving member being securely attached to at least one shock absorber mounted to the vehicle body frame, said impact receiving member comprising a central beam section and two side sections, said central beam section having a channel-like cross section and having a front portion, an upper portion including a first flange, and a lower portion, said upper portion and said lower portion extending toward the vehicle body frame from said front portion to form said channel-like cross section; an apron in the form of a rigid plate having one end attached to the vehicle body, said apron bridging a space between said impact receiving member and the end of the vehicle body; and an elastomeric spacer disposed between said apron and said impact receiving member to prevent direct contact of said apron with said impact receiving member; said elastomeric spacer comprising: an L-shaped bracket having a first portion formed with a bolt receiving aperture and a second portion extending generally perpendicularly from said first portion and said first portion having at one end thereof a flange extending in the same direction as said second portion does; a stud bolt and a nut means for securely attaching said first portion of said L-shaped bracket to said first flange of said central beam section with said flange of said L-shaped bracket engaging an edge of said first flange of said central beam section and with said second portion of said L-shaped bracket disposed over said upper portion of said central beam section; and an elastomeric member adhered to said second portion of said L-shaped bracket.

Claim 13

An impact absorbing type bumper in combination with a vehicle body frame, comprising: an impact receiving member located a distance from the end of the vehicle body frame, said impact receiving member being securely attached to at least one shock absorber mounted to the vehicle body frame, said impact receiving member comprising a central beam section and two side sections, said central beam section having a channel-like cross section and having a front portion, an upper portion including a first flange, and a lower portion, said upper portion and said lower portion extending toward the vehicle body frame from said front portion to form said channel-like cross section; an apron in the form of a rigid plate having one end attached to the vehicle body, said apron bridging a space between said impact receiving member and the end of the vehicle body; and an elastomeric spacer disposed between said apron and said impact receiving member to prevent direct contact of said apron with said impact receiving member; said elastomeric spacer comprising: an L-shaped bracket having a first portion formed with a bolt receiving aperture and a second portion extending generally perpendicularly from said first portion and towards the vehicle body frame; a stud bolt and nut means for securely attaching said first portion of said L-shaped bracket to said first flange of said central beam section with said second portion of said L-shaped bracket directed away from said upper portion of said central beam section; and an elastomeric member adhered to said second portion of said L-shaped bracket and having a portion contacting with said upper portion of said central beam section.

Claim 14

An impact absorbing type bumper in combination with a vehicle body frame, comprising: an impact receiving member located a distance from the end of the vehicle body frame, said impact receiving member being securely attached to at least one shock absorber mounted to the vehicle body frame, said impact receiving member comprising a central beam section and two side sections, said central beam section having a channel-like cross section and having a front portion, an upper portion including a first flange, and a lower portion, said upper portion and said lower portion extending toward the vehicle body frame from said front portion to form said channel-like cross section; an apron in the form of a rigid plate having one end attached to the vehicle body, said apron bridging a space between said impact receiving member and the end of the vehicle body; and an elastomeric spacer disposed between said apron and said impact receiving member to prevent direct contact of said apron with said impact receiving member; said elastomeric spacer comprising: an L-shaped bracket having a first portion formed with a bolt receiving aperture and a second portion extending generally perpendicularly from said first portion and towards the vehicle body frame; a stud bolt and nut means for securely attaching said first portion of said L-shaped bracket to said first flange of said central beam section with said second portion of said L-shaped bracket directed away from said upper portion of said central beam section; and an elastomeric member adhered to said second portion of said L-shaped bracket and having a portion contacting with said upper portion of said central beam section.

Claim 15

An impact absorbing type bumper in combination with a vehicle body frame, comprising: an impact receiving member located a distance from the end of the vehicle body frame, said impact receiving member being securely attached to at least one shock absorber mounted to the vehicle body frame, said impact receiving member comprising a central beam section and two side sections, said central beam section having a channel-like cross section and having a front portion, an upper portion including a first flange, and a lower portion, said upper portion and said lower portion extending toward the vehicle body frame from said front portion to form said channel-like cross section; an apron in the form of a rigid plate having one end attached to the vehicle body, said apron bridging a space between said impact receiving member and the end of the vehicle body; and an elastomeric spacer disposed between said apron and said impact receiving member to prevent direct contact of said apron with said impact receiving member; said elastomeric spacer comprising: an L-shaped bracket having a first portion formed with a bolt receiving aperture and a second portion formed extending generally perpendicularly from said first portion and toward the vehicle body frame, said first portion having at one end thereof a flange extending in the opposite direction to said second portion does; a stud bolt and a nut means for securely attaching said first portion of said L-shaped bracket to said first flange of said central beam section with said second portion of said L-shaped bracket directed away from said upper portion of said central beam section and with said flange of said L-shaped bracket engaging an edge of said first flange of said central beam section; and an elastomeric member adhered to said second portion of said L-shaped bracket.

Claim 16

An impact absorbing type bumper in combination with a vehicle body frame, comprising: an impact receiving member located a distance from the end of the vehicle body frame, said impact receiving member being securely attached to at least one shock absorber mounted to the vehicle body frame, said impact receiving member comprising a central beam section and two side sections, said central beam section having a channel-like cross section and having a front portion, an upper portion including a first flange, and a lower portion, said upper portion and said lower portion extending toward the vehicle body frame from said front portion to form said channel-like cross section; an apron in the form of a rigid plate having one end attached to the vehicle body, said apron bridging a space between said impact receiving member and the end of the vehicle body; and an elastomeric spacer disposed between said apron and said impact receiving member to prevent direct contact of said apron with said impact receiving member; said elastomeric spacer comprising: an L-shaped bracket having a first portion formed with a bolt receiving aperture and a second portion formed extending generally perpendicularly from said first portion and toward the vehicle body frame, said first portion having at one end thereof a flange extending in the opposite direction to said second portion does; a stud bolt and a nut means for securely attaching said first portion of said L-shaped bracket to said first flange of said central beam section with said second portion of said L-shaped bracket directed away from said upper portion of said central beam section and with said flange of said L-shaped bracket engaging an edge of said first flange of said central beam section; and an elastomeric member adhered to said second portion of said L-shaped bracket.

Claim 17

An impact absorbing type bumper in combination with a vehicle body frame, comprising: an impact receiving member located a distance from the end of the vehicle body frame, said impact receiving member being securely attached to at least one shock absorber mounted to the vehicle body frame, said impact receiving member comprising a central beam section and two side sections, said central beam section having a channel-like cross section and having a front portion, an upper portion including a first flange, and a lower portion including a second flange, said upper portion and said lower portion extending toward the vehicle body frame from said front portion to form said channel-like cross section; an apron in the form of a rigid plate having one end attached to the vehicle body, said apron bridging a space between said impact receiving member and the end of the vehicle body; and an elastomeric spacer disposed between said apron and said impact receiving member to prevent direct contact of said apron with said impact receiving member; said elastomeric spacer comprising: an L-shaped bracket having a first portion and a second portion extending generally perpendicularly from said first portion; at least two stud bolts and nuts for securely attaching said first portion to said L-shaped bracket to said first and second flanges of said central beam section with said second portion of said L-shaped bracket directed away from said upper portion of said central beam section; and an elastomeric member adhered to said second portion of said L-shaped bracket.

Claim 18

An impact absorbing type bumper in combination with a vehicle body frame, comprising: an impact receiving member located a distance from the end of the vehicle body frame, said impact receiving member being securely attached to at least one shock absorber mounted to the vehicle body frame, said impact receiving member comprising a central beam section and two side sections, said central beam section having a channel-like cross section and having a front portion, an upper portion including a first flange, and a lower portion including a second flange, said upper portion and said lower portion extending toward the vehicle body frame from said front portion to form said channel-like cross section; an apron in the form of a rigid plate having one end attached to the vehicle body, said apron bridging a space between said impact receiving member and the end of the vehicle body; and an elastomeric spacer disposed between said apron and said impact receiving member to prevent direct contact of said apron with said impact receiving member; said elastomeric spacer comprising: an L-shaped bracket having a first portion and a second portion extending generally perpendicularly from said first portion; at least two stud bolts and nuts for securely attaching said first portion to said L-shaped bracket to said first and second flanges of said central beam section with said second portion of said L-shaped bracket directed away from said upper portion of said central beam section; and an elastomeric member adhered to said second portion of said L-shaped bracket.