Mounting sucker

• US 6,478,271 B1
• Filed: 08/07/2001
• Issued: 11/12/2002
• Est. Priority Date: 08/07/2001
• Status: Active Grant

• Current Assignee: Free-Free Industrial Corp.
• Original Assignee: Free-Free Industrial Corp.
• Inventors: Mulholland, Ian
• Primary Examiner(s): Ramirez, Ramon O.
• Assistant Examiner(s): BAXTER, GWENDOLYN WRENN
• Application Number:
  US09/922,711
• Time in Patent Office: 462 Days
• Field of Search: 248/205.8, 248/205.5, 248/206.2, 248/205.7, 248/206.3, 248/206.4, 248/206.1, 248/683, 248/467, 248/362, 248/363, 294/64.1
• US Class Current: 248/205.8
• CPC Class Codes: F16B 47/00 Suction cups for attaching purposes; Equivalent means using adhesives devices using adhesives, suction or magnetism for hanging or supporting pictures or the like A47G1/17; vacuum work holders B25B11/005; anchoring of ships using suction B63B21/27; suction cups for handling glass B65G49/061; load-engaging elements for cranes using suction means B66C1/02
• CPC Class Codes: F16B 47/006 the suction cups being activated by the rotation of a cranked lever arm

Abstract

A mounting sucker is adapted to be mounted on a smooth surface and composed of a suction devices (10), an intermediate member (20), and a rotating boss (30). When the rotating boss (30) is rotated, the central part of the suction devices (10) is pulled away from the smooth surface, creating a partial vacuum space. The intermediate member (20) pushes down on peripheral edges of the suction devices (10). An outer periphery of the rotating boss (30) extends beyond the range of the suction devices (10) so that the outer periphery of the rotating boss (30) can contact the smooth surface and transmit force from an object suspended on the mounting sucker.

Claims

1. A mounting sucker comprising:

a suction device (10) adapted for sealingly contacting a smooth surface, wherein the suction device (10) is composed of;

a suction pad (11) contacting the smooth surface to form a seal between the suction pad (11) and the smooth surface; and

a threaded projection (12) erected on the suction pad (11);

an intermediate member (20) mounted the suction device (10) and having a pressing edge (22) formed around the circumference of the intermediate member (20) to evenly press the suction pad (11) so as to make the suction device (10) firmly attach to the smooth surface; and

a rotating boss (30) adapted to connect with a hanging rack and capping the intermediate member (20) and the suction device (10), the rotating boss (30) having;

a tube (31) formed in the center of the rotating boss (30) to movably penetrate the intermediate member (20) and having a screw thread bore (311) to receive the threaded projection (12) of the suction device (10); and

a bushing head (33) formed outwardly on the rotating bass (30) to adapt to connect with hanging racks;

wherein in a first position the intermediate member (20) is spaced away from the rotating boss (30) and the suction device (10) is close to the smooth surface (40), and in a second position the intermediate member (20) is drawn close to the rotating boss (30) and the suction device (10) is spaced away from the smooth surface so that a partial vacuum is created between the suction device (10) and the smooth surface for sealing attachment.

2. The mounting sucker as claimed in claim 1, wherein the rotating boss (30) is a shallow dome and has multiple scalloped concavities (34) defined in an outer surface of the rotating boss (30) to make mounting means to be turned easily.

3. The mounting sucker as claimed in claim 2, wherein the rotating boss (30) further comprises multiple cutouts (35) defined in distal ends of the scalloped concavities (34) respectively so that the seal between the suction pad (11) and the smooth surface is broken easily if necessary.

4. The mounting sucker as claimed in claim 2, wherein the intermediate member (20) further comprises an annular bearing zone (23) at a center of the intermediate member (20), the annular bearing zone (23) transfers an even compression from the rotating boss (30) to the suction device (10) when the rotating boss (30) screws toward the smooth surface (40).

5. The mounting sucker as claimed in claim 2, wherein the suction device (10) further comprises a plate (13) secured at a root of the threaded projection (12) to provide a connecting strength between the suction pad (11) and the threaded projection (12) to avoid breakage therebetween.

6. The mounting sucker as claimed in claim 1, wherein the rotating boss (30) further comprises multiple cutouts (35) defined in an outer surface of the rotating boss (30) so that the seal between the suction pad (11) and the smooth surface is broken easily if necessary.

7. The mounting sucker as claimed in claim 6, wherein the intermediate member (20) further comprises an annular bearing zone (23) at a center of the intermediate member (20), the bearing zone (23) transfers an even compression from the rotating boss (30) to the suction device (10) when the rotating bass (30) screws toward the smooth surface (40).

8. The mounting sucker as claimed in claim 6, wherein the suction device (10) further comprises a plate (13) secured at a root of the threaded projection (12) to provide a connecting strength between the suction pad (11) and the threaded projection (12) to avoid breakage therebetween.

9. The mounting sucker as claimed in claim 1, wherein the intermediate member (20) further comprises an annular bearing zone (23) at a center of the intermediate member (20), the annular bearing zone (23) transfers an even compression from the rotating boss (30) to the suction device (10) when the rotating boss (30) screws toward the smooth surface (40).

10. The mounting sucker as claimed in claim 9, wherein the suction device (10) further comprises a plate (13) secured at a root of the threaded projection (12) to provide a connecting strength between the suction pad (11) and the threaded projection (12) to avoid breakage therebetween.

11. The mounting sucker as claimed in claim 1, wherein the suction device (10) further comprises a plate (13) secured at a root of the threaded projection (12) to provide a connecting strength between the suction pad (11) and the threaded projection (12) to avoid breakage therebetween.