US3554327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator guiding device
Assignee: Mitsubishi Electric Corp
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Filing: 1968-01-12
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Granted: 1971-01-12
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Expires: 1988-01-12
Abstract
Abstract An elevator car is provided with supporters by which individual holders for holding guide shoes are supported in rolling contact relation for limited movement toward and away from the associated guide rails and also rotational movement respectively. A friction member resiliently engages the shoe holder to apply a controlled frictional force to it.
Inventors
- 👤 Akira Takamura
- 👤 Kazushi Kunii
- 👤 Saburo Seharada
- 👤 Hiroshi Nakatani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:47
CPC Classifications
B; B66; B66B; B66B7/00; B66B7/02; B66B7/04; B66B7/046; B66B7/048
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
117 words
A device for effectively distributing impulsive forces applied to a shaft comprising: a housing shaft slidably mounted in said housing resilient means acting between said housing and shaft responsive to the movement of said shaft in one axial direction for urging said shaft in the other axial direction; a sleeve roller bearing mounted on said shaft for both rotary and axial movement relative to said shaft; and means carried by said housing mounting said sleeve roller bearing in said housing or axial movement along said shaft in response to impulsive forces other than forces in said other axial direction applied to said shaft effective to distribute said impulsive forces to maximize the effectiveness of said resilient means.
Claim 2
Independent Claim
117 words
A device for effectively distributing impulsive forces applied to a shaft comprising: a housing shaft slidably mounted in said housing resilient means acting between said housing and shaft responsive to the movement of said shaft in one axial direction for urging said shaft in the other axial direction; a sleeve roller bearing mounted on said shaft for both rotary and axial movement relative to said shaft; and means carried by said housing mounting said sleeve roller bearing in said housing or axial movement along said shaft in response to impulsive forces other than forces in said other axial direction applied to said shaft effective to distribute said impulsive forces to maximize the effectiveness of said resilient means.
Claim 3
Dependent Claim
23 words
A device according to claim 1; including means rotatably mounting said slidably mounted shaft for assisting the operation of said sleeve roller bearing.
Claim 4
Dependent Claim
129 words
An elevator guiding device for effectively distributing impulsive forces applied to a guide shoe comprising a housing a shaft slidably mounted in said housing; a guide shoe connected to Said shaft; resilient means acting between said housing and shaft responsive to the movement of said shaft in one axial direction for biasing said shaft in the other axial direction; a sleeve roller bearing mounted on said shaft for both rotary and axial movement relative to said shaft; and means carried by said housing mounting said sleeve roller bearing in said housing for axial movement along said shaft in response to impulsive forces other than forces in said other axial direction applied to said guide shoe effective to distribute said impulsive forces to maximize the effectiveness of said resilient means.
Claim 5
Dependent Claim
129 words
An elevator guiding device for effectively distributing impulsive forces applied to a guide shoe comprising a housing a shaft slidably mounted in said housing; a guide shoe connected to Said shaft; resilient means acting between said housing and shaft responsive to the movement of said shaft in one axial direction for biasing said shaft in the other axial direction; a sleeve roller bearing mounted on said shaft for both rotary and axial movement relative to said shaft; and means carried by said housing mounting said sleeve roller bearing in said housing for axial movement along said shaft in response to impulsive forces other than forces in said other axial direction applied to said guide shoe effective to distribute said impulsive forces to maximize the effectiveness of said resilient means.
Claim 6
Dependent Claim
23 words
A device according to claim 3; including means rotatably mounting said slidably mounted shaft for assisting the operation of said sleeve roller bearing.
Claim 7
Dependent Claim
24 words
A device according to claim 3; further including means for applying a controlled frictional force to said slidably mounted shaft to inhibit movement thereof.
Claim 8
Dependent Claim
132 words
In combination: a longitudinally extending guide rail; a guide shoe mounted for movement along said guide rail; a housing shaft slidably mounted in said housing connected to said guide shoe; damping means acting between said housing and shaft responsive to the movement of said shaft in one axial direction for urging said shaft in the other axial direction; a sleeve roller bearing mounted on said shaft for both rotary and axial movement relative to said shaft; and means carried by said housing mounting said sleeve roller bearing in said housing for axial movement along said shaft in response to impulsive forces other than forces in said other axial direction applied to said guide shoe from said guide rail effective to distribute said impulsive forces to maximize the effectiveness of said damping means.
Claim 9
Dependent Claim
132 words
In combination: a longitudinally extending guide rail; a guide shoe mounted for movement along said guide rail; a housing shaft slidably mounted in said housing connected to said guide shoe; damping means acting between said housing and shaft responsive to the movement of said shaft in one axial direction for urging said shaft in the other axial direction; a sleeve roller bearing mounted on said shaft for both rotary and axial movement relative to said shaft; and means carried by said housing mounting said sleeve roller bearing in said housing for axial movement along said shaft in response to impulsive forces other than forces in said other axial direction applied to said guide shoe from said guide rail effective to distribute said impulsive forces to maximize the effectiveness of said damping means.
Claim 10
Dependent Claim
32 words
The combination according to claim 6; further including means for applying a controlled frictional force to said slidably mounted shaft to attenuate vibrations of said shaft caused by the impulsively applied forces.
Claim 11
Dependent Claim
48 words
The combination according to claim 7; wherein said last-mentioned means comprises a friction member engageable with a surface of said slidably mounted shaft; a compression spring normally urging said friction member into frictional contact with said surface; and means for adjusting the degree of compression of said spring.
Claim 12
Dependent Claim
31 words
The combination according to claim 8; wherein said slidably mounted shaft has an inwardly tapered portion; and said friction member is shaped and positioned to frictionally contact said inwardly tapered portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |