Compaction machine

Patent metadata

Field	Value
Publication number	US-11084446-B2
Application number	US-201816492489-A
Country	US
Kind code	B2
Filing date	Jul 19, 2018
Priority date	Sep 15, 2017
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

A ROPS (protective structure) (15) is obtained by coupling upper ends of a pair of leg portions (15a) with a coupling portion (15b) and forming an arc-shaped curved portion (15c) between each of the leg portions (15a) and the coupling portion (15b), and is arranged so as to straddle vehicle bodies (4 and 5) and fixed. A working light (17) is fixed to the left curved portion (15c) via a mounting bracket (19), and a rotary light (18) is detachably mounted by fixing a mounting bracket (20). A protect region (E) formed into an approximately triangular shape is formed by the curved portion (15c) of the ROPS (15), a lateral restriction line (L1) in which a left-side surface corresponding to a maximum width of the vehicle bodies (4 and 5) is extended upward and an upper restriction line (L2) in which a maximum height of the ROPS (15) is extended laterally. The working light (17) and the mounting brackets (19 and 20) are arranged in the protect region (E), thereby preventing an outward protrusion.

First claim

The invention claimed is:

1. A compaction machine comprising:
a protective structure formed into a gate shape obtained by coupling upper ends of a pair of leg portions with a coupling portion and in which an arc-shaped curved portion is formed between each of the leg portions and the coupling portion, the protective structure arranged so as to straddle a vehicle body and in which a lower portion of each of the leg portions is fixed to the vehicle body; and
a work assist device arranged within a protect region formed into an approximately triangular shape surrounded by at least either one of the curved portions, a lateral restriction line in which a side surface corresponding to a maximum width of the vehicle body is extended upward and an upper restriction line in which a maximum height of the protective structure is extended laterally, and fixed to the curved portion of the protective structure in a state that the work assist device is prevented from protruding from within the protect region.

2. The compaction machine according to claim 1 , wherein the work assist device is configured to be adjustable in angle and prevented from protruding from within the protect region regardless of an adjustment angle.

3. The compaction machine according to claim 1 , wherein the work assist device is a rotating light that notifies nearby persons of work in progress and a mounting bracket for fixing the rotating light to the curved portion of the protective structure,
the mounting bracket is positioned below the upper restriction line and prevented from protruding from within the protect region, and
the rotating light protrudes upward beyond the upper restriction line from within the protect region, and is detachably mounted on the mounting bracket so as to be removed from the mounting bracket when the compaction machine is transported.

4. The compaction machine according to claim 1 , wherein the work assist device is a device main body for performing an intended function, and a mounting bracket for fixing the device main body to the curved portion of the protective structure, and
the mounting bracket supports the device main body from the curved portion of the protective structure via an elastic body.

5. The compaction machine according to claim 1 , wherein the protective structure is configured to be foldable backward centering on a bend rotating portion provided in a middle portion between the two leg portions, and prevents the work assist device from interfering with a rearmost portion of the vehicle body in a folded state.

6. The compaction machine according to claim 1 , wherein the work assist device is prevented from protruding backward from the rearmost portion of the vehicle body.

Assignees

• Hitachi Construction Mach Co

Inventors

• Suzuki Kazuya
• Tanaka Masamichi
• Abe Hiroshi

Classifications

• E01C19/23 Primary

  Rollers therefor; Such rollers usable also for compacting soil ({E01C19/41,} E01C19/43, {E01C19/52, E01C23/065} take precedence; specially adapted for agricultural purposes A01B29/00; garden rollers A01G20/35; making or maintaining surfaces of snow or ice E01H4/00; solely for soil compaction E02D3/026) · CPC title

• B60R21/13 Primary

  Roll-over protection (electrical circuits for triggering safety arrangements B60R21/01) · CPC title

• B60Q1/50

  for indicating other intentions or conditions, e.g. request for waiting or overtaking · CPC title

• E02F9/166

  movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins (seats for vehicles in general B60N2/00) · CPC title

• E01C2301/30

  Cabin details · CPC title