ISO 5006:2017 土木機械  —  オペレーターの視野  —  試験方法と性能基準 | ページ 6

3.3.1

visibility test circle

VTC

circle with 12 m radius located on the ground reference plane with its centre vertically below the FPCP (3.2)

Note 1 to entry: See Figure 2.

3.3.2

rectangular boundary

RB

line on the ground reference plane located at 1 m distance from the outside rectangular boundary of the machine, except for articulated-frame dumpers ここで, the distance is greater than 1 m to the front of the machine and graders where the distance to the rear of the machine is greater than 1 m

Note 1 to entry: See Figure 2 and 8.3.3.

3.3.3

sector of vision A

segment of the visibility test surface to the front of the machine, defined by a 9,5 m chord length for the 12 m radius that is perpendicular to the longitudinal plane passing through the FPCP (3.2) (X axis) with the chord length bisected by the longitudinal plane (Y axis)

Note 1 to entry: See Figure 2.

3.3.4

sectors of vision B and C

segments of the visibility test surface to the front of the machine outside sector A and bounded by the transverse plane through the FPCP (3.2)

Note 1 to entry: See Figure 2.

3.3.5

sectors of vision D and E

segments of the visibility test surface to the rear defined by an angle of 45° to both the right and left sides of the transverse plane passing through the FPCP (3.2)

Note 1 to entry: See Figure 2.

3.3.6

sector of vision F

segment of the visibility test circle (3.3.1) to the rear between sectors D and E

Note 1 to entry: See Figure 2.

Figure 2 — Visibility test locations

Dimensions in metres

Key

VTC	visibility test circle
RB	rectangular boundary
TM	test machine
Y	forward direction of machine
A, B, C, D, E, F	sectors of vision
FPCP	filament position centre point

3.4

masking

shadow on the 12 m visibility test circle (3.3.1) or the vertical test object at the RB (3.3.2) created because parts of the base machine or its equipment block the light rays from both of the light bulb filaments

Note 1 to entry: Examples of parts that can cause maskings include rollover protective structures (ROPS), window and door frames, exhaust pipes, the engine hood and equipment or attachment, such as bucket, boom.

3.5

light source apparatus

test unit with at least two light sources that have adjustable light spacing, 360° rotatable, with its rotation point at the FPCP (3.2) , to simulate the range of eye positions for an operator

Note 1 to entry: See Figure 1.

3.6

visibility performance criteria

criteria intended to minimize risk to persons in the vicinity of the machine during machine operation and travelling

Note 1 to entry: These visibility performance criteria are specified as maximum allowed maskings at the 12 m visibility test circle or at the RB (3.3.2) .

3.7

jobsite organization

rules and procedures for the jobsite that coordinate machines and people working together

3.8.1

direct visibility

visibility by direct line of sight as determined by the light from the light source

3.8.2

indirect visibility

visibility with the aid of mirrors or with other visual aids, such as closed circuit TV (CCTV)

3.9

derivative earth-moving machine

machine modified or fitted with equipment or attachments that influence visibility as compared with the standard configuration of the machine

Note 1 to entry: This definition is different from the one given in ISO 6165.