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1. (EP3396071) COMPACT CONSTRUCTION MACHINE
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Claims

1. A small-sized construction machine comprising:

a self-propelled lower traveling structure;

an upper revolving structure that is rotatably mounted on said lower traveling structure; and

a working mechanism that is provided on the front part side of said upper revolving structure, wherein

said upper revolving structure includes:

a revolving frame forming a support structural body,

a counterweight provided on a rear side of said revolving frame,

an engine located on the front side of said counterweight and mounted on said revolving frame,

a cab provided on said revolving frame so as to cover said engine from above and on one side in a left-right direction of which an openable/closable door is provided, and

a fuel tank that has a fuel filling port and a cap that closes said fuel filling port and stores fuel to be supplied to said engine, wherein

a fuel filling opening that is located on the side behind said door and surrounds said fuel filling port of said fuel tank and a lid member that caps said fuel filling opening to be openable/closable are provided on an outer surface of one side in the left-right direction on which said door of said cab is provided, characterized in that:

a cap holder that is attached to the inner surface side of said lid member in a state of facing an inner surface of said lid member with an interval in order to hold said cap removed from said fuel tank and a lock that locks said lid member from the outside in a state where said lid member closes said fuel filling opening are provided on said lid member,

said lock has a lock lever that is composed of a long member a base end of which is rotatably attached to said lid member and a leading end of which is allowed to enter the gap between said lid member and said cap holder and that rotationally moves between a locking position where said lid member maintains a state of closing said fuel filling opening and an unlocking position where said lid member allows opening of said fuel filling opening.


  2. The small-sized construction machine according to claim 1, wherein
a U-shaped guide groove into which part of said cap enters is provided in said cap holder, and
said guide groove in said cap holder opens in a direction which said cap is allowed to move by being pushed by said lock lever when said lock lever has rotationally moved from said unlocking position to said locking position.
  3. The small-sized construction machine according to claim 1, wherein
said fuel filling port of said fuel tank is provided on the rear side of said door of said cab, facing said fuel filling opening provided in said cab.
  4. The small-sized construction machine according to claim 2, wherein
said fuel filling opening is configured to be equipped with an abutting member on which said cap that is pushed by said lock lever abuts when rotationally moving said lock lever from said unlocking position to said locking position in a state of holding said capon said cap holder.
  5. The small-sized construction machine according to claim 4, wherein
a scattering preventing cover that prevents fuel to be filled from scattering around is provided between said fuel filling opening and said fuel filling port of said fuel tank, and
a frame part which surrounds the circumference of said fuel filling opening is configured to also serve as said abutting member in said scattering preventing cover.
  6. The small-sized construction machine according to claim 1, wherein
said lock lever of said lock performs unlocking and locking by rotating 180 degrees in a circumferential direction.