Support frame for sheet conveying apparatus and sheet conveying apparatus

1. A support frame for a sheet conveying apparatus, comprising:

a bottom plate that includes a first member that has a first surface portion with a substantially rectangular shape and a first wall portion that is bent at a substantially right angle to the first surface portion and extends vertically downward from a peripheral edge of the first surface portion, the peripheral edge having a substantially rectangular shape, and a second member that has a second surface portion with a substantially rectangular shape and a second wall portion that is bent at a substantially right angle to the second surface portion and extends vertically upward from a peripheral edge of the second surface portion, the peripheral edge having a substantially rectangular shape;

a support rod that is fixed to the bottom plate; and

a plurality of installation members that is fixed to the bottom plate and installs the sheet conveying apparatus on an installation surface, wherein

the second member is fixed to the first member by the second wall portion overlapping and being joined to the first wall portion on an outer side of the first wall portion.

2. The support frame for a sheet conveying apparatus according to claim 1 , wherein

the second wall portion includes an extending portion that extends vertically above the first surface portion of the first member, and the second wall portion is fixed to the first member so that an edge portion of the second wall portion is located vertically above the first surface portion.

3. The support frame for a sheet conveying apparatus according to claim 2 , wherein

the support rod is fixed to the extending portion.

4. The support frame for a sheet conveying apparatus according to claim 1 , wherein

the second surface portion includes a hole-shaped portion that has a distance from the second wall portion in a horizontal direction and penetrates the second surface portion in a plate thickness direction, and

each of the plurality of installation members is inserted into the hole-shaped portion, and fixed to the first member.

5. The support frame for a sheet conveying apparatus according to claim 1 , wherein

the installation member is a rotatable caster that causes the sheet conveying apparatus to be movable, and is provided at a corner of the bottom plate.

6. The support frame for a sheet conveying apparatus according to claim 1 , wherein

the support rod includes

a projecting portion that is erected on the first member inside of a rectangular peripheral edge of the first member, and projects toward the second wall portion to be connected to the second wall portion.

7. The support frame for a sheet conveying apparatus according to claim 1 , wherein

the support rod is

formed by joining an inner rod member and an outer rod member,

one of the inner rod member and the outer rod member includes

an erection connection portion that is connected to the first member to erect the support rod, and

another of the inner rod member and the outer rod member does not include

the erection connection portion.

8. The support frame for a sheet conveying apparatus according to claim 7 , wherein

the one has

a U-shaped cross-section cut by a plane parallel to the bottom plate when the support rod is erected on the first member, and includes the erection connection portion on each of three sides of a lower end portion that abuts against the first member.

9. The support frame for a sheet conveying apparatus according to claim 1 , wherein

the bottom plate includes

a cavity portion that is formed in an internal space surrounded by the first member and the second member, and

at least one of the first member and the second member includes

a cone trapezoidal portion that projects into the cavity portion to connect the first member and the second member.

10. A sheet conveying apparatus comprising:

a conveying unit configured to convey a sheet; and

the support frame according to claim 1 , the support frame supporting the conveying unit.