Handle mounting means for power driven vacuum cleaner

• US 3,938,216 A
• Filed: 02/10/1975
• Issued: 02/17/1976
• Est. Priority Date: 02/10/1975
• Status: Expired due to Term

• Current Assignee: Matsushita Appliance Corporation
• Original Assignee: Whirlpool Corporation
• Inventors: Schmitz, Joseph F., Nordeen, Erwin, Malz, Ute K.
• Primary Examiner(s): Roberts, Edward L.
• Application Number:
  US05/548,408
• Time in Patent Office: 372 Days
• Field of Search: 15/49 R, 15/49 RB, 15/49 C, 15/50 R, 15/50 A, 15/50 C, 15/98, 15/340, 15/350, 15/351, 180/19 H, 200/61.85, 200/153 K, 55/357, 55/358
• US Class Current: 15/340.2
• CPC Class Codes: A47L 9/325 for wheeled suction cleaners with steering handle

Abstract

An improved mounting structure for movably mounting the handle of a power driven vacuum cleaner including spring biasing structure urging the handle to a central neutral position and permitting the user of the vacuum cleaner to effect selective forward and rearward movement of the vacuum cleaner by suitable manipulation of the handle against the action of the spring biasing structure. The spring biasing structure is defined by a cartridge which is mounted in a tubular portion of the handle. Improved bearing structures are provided for providing facilitated longitudinal reciprocation of the handle for facilitated control of the forward and reverse operation of the vacuum cleaner.

Claims

1. In a power driven vacuum cleaner having a bag housing, selectively operable means for reversibly driving the vacuum cleaner, and a manipulating handle, an improved mounting structure for movably mounting the handle for controlling the selectively operable means, said mounting structure comprising:

bearing means movably supporting said handle on said bag housing for reciprocable movement of the handle from and to a central neutral position; and

a biasing assembly for biasing said handle to said neutral position including stop means fixedly retained to said bag housing, means movable with said handle defining a pair of reaction surfaces spaced oppositely from said stop means, a first selectively deflectible spring extending between said stop means and one of said reaction surfaces, and a second selectively deflectible spring extending between said stop means and the other of said reaction surfaces, said springs cooperatively urging said handle to said central neutral position.

2. The vacuum cleaner handle mounting structure of claim 1 wherein said biasing assembly includes a cartridge attached to said handle and defining said reaction surfaces and spring means.

3. The vacuum cleaner handle mounting structure of claim 1 wherein said handle is tubular and said biasing assembly includes a cartridge mounted in and attached to said tubular handle and defining said reaction surfaces and spring means.

4. The vacuum cleaner handle mounting structure of claim 1 wherein said bearing means comprises ball bearing means carried by said bag housing.

5. The vacuum cleaner handle mounting structure of claim 1 wherein said bag housing defines a channel receiving said handle for longitudinal reciprocal movement therein.

6. The vacuum cleaner handle mounting structure of claim 1 wherein said bag housing defines a channel receiving said handle for longitudinal reciprocal movement therein and said bearing means comprises ball bearing means carried by said bag housing, and further including retaining means retaining said handle in said channel and removably maintaining said bearing means mounted to said bag assembly.

7. The vacuum cleaner handle mounting structure of claim 1 wherein said springs are compressible and said reaction surfaces are disposed to provide a compression of said first spring different from that of said second spring when said handle is in said neutral position.

8. In a power driven vacuum cleaner having a bag housing, selectively operable means for reversibly driving the vacuum cleaner, and a manipulating handle, an improved mounting structure for movably mounting the handle for controlling the selectively operable means, said mounting structure comprising:

means movably supporting said handle on said bag housing for reciprocable movement of the handle from and to a central neutral position;

stop means fixedly retained to said bag housing; and

a cartridge comprising a mounting element carried by said handle and defining a pair of reaction surfaces spaced oppositely from said stop means, a first spring disposed within said mounting element selectively compressible between said stop means and the other of said reaction surfaces, said springs cooperatively urging said handle to said central neutral position.

9. The vacuum cleaner handle mounting structure of claim 8 wherein said handle defines a tubular portion and said cartridge is received in said tubular portion.

10. The vacuum cleaner handle mounting structure of claim 8 wherein said handle defines a tubular portion and said cartridge is received in said tubular portion, said stop means extending from said bag housing through said tubular portion into said cartridge.

11. The vacuum cleaner handle mounting structure of claim 8 wherein said mounting element comprises a molded plastic element, and said reaction surfaces comprise wall means integrally molded in said element.

12. The vacuum cleaner handle mounting structure of claim 8 wherein said handle defines a tubular portion and said cartridge is received in said tubular portion, said mounting structure further including securing means fixedly securing said cartridge to said handle portion.

13. In a power driven vacuum cleaner having a bag housing, selectively operable means for reversibly driving the vacuum cleaner, and a manipulating handle, an improved mounting structure for movably mounting the handle to the bag housing for controlling the selectively operable means, said mounting structure comprising:

means on said handle defining a tubular carrier portion;

ball bearing means movably supporting said carrier portion on said bag housing for reciprocable movement of the handle from and to a central neutral position;

stop means fixedly retained to said bag housing; and

a cartridge defining means for biasing said carrier to said neutral position, said cartridge including means movable with said carrier portion defining a pair of reaction wall means spaced oppositely from said stop means, a first selectively deflectible coil spring extending between said stop means and one of said reaction wall means, and a second selectively deflectible coil spring extending between said stop means and the other of said reaction wall means, said springs cooperatively urging said carrier and handle to said central neutral position.

14. The vacuum cleaner handle mounting structure of claim 13 wherein said reaction wall means are disposed to provide a compression of said first spring different from that of said second spring when said handle is in said neutral position.

15. The vacuum cleaner handle mounting structure of claim 13 wherein said springs comprise selectively compressible coil springs.

16. The vacuum cleaner handle mounting structure of claim 13 wherein said stop means further defines means for retaining the handle carrier portion in mounted association with the bag housing.

17. The vacuum cleaner handle mounting structure of claim 13 wherein said cartridge is fixedly secured to said handle carrier portion.

18. The vacuum cleaner handle mounting structure of claim 13 including spring insert means for the stop means end of said first and second springs including a tubular portion positioned inside the coils of said springs and a circular flange overlying the stop means end of said first and second springs.