Support apparatus for a grenade thrower tube

In a support apparatus for a grenade thrower tube wherein a height adjustment assembly raises and lowers the tube along a vertical axis and a sideways adjustment assembly moves the tube back-and-forth in a direction transverse to the vertical axis, the combination comprising:

• (a) transverse extension arm means pivotally mounted between the height adjustment assembly and the sideways adjustment assembly to rotate about said vertical axis,
• (b) coupling means for rotatably connected the sideways adjustment assembly on the transverse extension arm means at a location laterally spaced from said vertically axis to rotatably carry the sideways adjustment assembly when the transverse extension arm means rotates about said vertical axis,
• (c) said transverse extension arm means including connecting means for securing the transverse extension arm means against pivoting around said vertical axis,
• (d) said height adjustment assembly including a vertically disposed journal member,
• (e) said transverse extension arm means including an extension arm member, and
• (f) said connecting means including a screw bush and transverse pin to link the extension arm member to the journal member.

In a support apparatus for a grenade thrower tube wherein a height adjustment assembly raises and lowers the tube along a vertical axis and a sideways adjustment assembly moves the tube back-and-forth in a direction transverse to the vertical axis, the combination comprising:

• (a) extension means pivotally mounted to rotate about said vertical axis,
• (b) coupling means for rotatably connecting the sideways adjustment assembly on the extension means at a location laterally spaced from said vertical axis,
• (c) said extension means is disposed between the height adjustment assembly and the sideways adjustment assembly,
• (d) said height adjustment assembly including a vertically disposed journal member,
• (e) said extension means including an extension arm pivotally connected to said journal member,
• (f) said sideways adjustment assembly including a cog member pivotally carried by the extension arm at said laterally spaced location,
• (g) said coupling means including means for locking the rotational position of the cog member with respect to the extension arm,
• (h) said locking means comprising a snap mechanism including means for biasing a coupling member having locking cams effective to correspondingly act with complementary recesses formed in the extension arm.

In a support apparatus for a grenade thrower tube wherein a height adjustment assembly raises and lowers the tube along a vertical axis and a sideways adjustment assembly moves the tube back-and-forth in a direction transverse to the vertical axis, the combination comprising:

• (a) extension means pivotally mounted to rotate about said vertical axis,
• (b) coupling means for rotatably connecting the sideways adjustment assembly on the extension means at a location laterally spaced from said vertical axis,
• (c) said coupling means including a coupling member having a handle on one side of a base portion and a centrally arranged pin with an outer head portion extending in a direction toward said sideways adjustment assembly,
• (d) spring means being disposed between said outer head portion and an abutment means fixedly disposed on a cog member of the sideway adjustment assembly rotatably mounted at said laterally spaced location.