US3742647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate equipment
Assignee: Toshiba Corp
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Filing: 1971-06-03
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Granted: 1973-07-03
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Expires: 1991-06-03
Abstract
Abstract Gate equipment constituting at least one gate comprising a pair of parallel partition members defining a limited passageway in a specified area, for example, on the premises of a railroad station, shafts provided in said paired partition members and a pair of gate members disposed on the facing sides of said paired partition members, hinged at one end to said shafts and designed to open or close the passageway by rotation about the shafts whereby, when the passageway is to be closed, the free ends of said paired gate members are brought to rest in a state projecting from the hinge shafts in the direction in which there is admitted an object trhough the passageway. The drive mechanism for each gate member includes a pair of pivotally connected arms coupled respectively to a gate member and to a motor such that the arms are linearly aligned when the gate member is closed.
Inventors
- 👤 T Tomita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:57
CPC Classifications
E; E06; E06B; E06B11/00; E06B11/08; E06B11/085; G; G07; G07F; G07F17/00; G07F17/14; G07F17/145
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
281 words
Gate equipment including at least one gate comprising: a pair of partition members (2) located in a specified area so as to define a limited passageway for an object; first shafts (3) respectively disposed in said paired partition members; a pair of gate members (5) respectively hinged at one end to said first shafts (3) to rotate about said first shafts (3), such that when the passageway is to be closed to prevent passage of an object the other free ends of said gate members (5) are brought to rest in a state projecting from the hinged position in the direction in which the object is to pass through the passageway; and a gate drive mechanism for each gate member including a second shaft (17) rotatably connected to the respective gate member (5) between the hinged end and said other free end thereof; a connection rod (7) rotatably connected at one end to said second shaft (17); a motor (30) provided in the partition member (2) for the respective gate member (5); a control shaft (23) disposed at a prescribed point in the partition member (2) and coupled to said motor so as to have its rotation intermittently controlled by said motor; and an arm (24), one end of which is connected to the control shaft (23) to rotate therewith and the other end of which is rotatably coupled to the other end of said connection rod (7) so that when the paired gate members are closed to prevent passage of an object, the connection rod (7) and arm (24) are linearly aligned, the opening and closing of said gate members being according to the intermittent rotation of the control shaft.
Claim 2
Dependent Claim
281 words
Gate equipment including at least one gate comprising: a pair of partition members (2) located in a specified area so as to define a limited passageway for an object; first shafts (3) respectively disposed in said paired partition members; a pair of gate members (5) respectively hinged at one end to said first shafts (3) to rotate about said first shafts (3), such that when the passageway is to be closed to prevent passage of an object the other free ends of said gate members (5) are brought to rest in a state projecting from the hinged position in the direction in which the object is to pass through the passageway; and a gate drive mechanism for each gate member including a second shaft (17) rotatably connected to the respective gate member (5) between the hinged end and said other free end thereof; a connection rod (7) rotatably connected at one end to said second shaft (17); a motor (30) provided in the partition member (2) for the respective gate member (5); a control shaft (23) disposed at a prescribed point in the partition member (2) and coupled to said motor so as to have its rotation intermittently controlled by said motor; and an arm (24), one end of which is connected to the control shaft (23) to rotate therewith and the other end of which is rotatably coupled to the other end of said connection rod (7) so that when the paired gate members are closed to prevent passage of an object, the connection rod (7) and arm (24) are linearly aligned, the opening and closing of said gate members being according to the intermittent rotation of the control shaft.
Claim 3
Dependent Claim
45 words
A gate equipment according to claim 1, wherein said gate drive mechanism includes at least one cam rotating with said control shaft and a switch operated according to the rotation of said cam and coupled to said motor to control the drive of said motor.
Claim 4
Dependent Claim
67 words
A gate equipment according to claim 1, wherein said gate drive mechanism includes a brake for said control shaft, first and second cams rotating with the control shaft and first and second switches operated according to the rotation of said first and second cams and respectively coupled to said motor and brake for controlling the motor by the first switch and the brake by the second switch.
Claim 5
Dependent Claim
92 words
A gate equipment according to claim 1 including a pair of gate members across both end portions of an assembly of the paired partition members, the free ends of said paired gate members being directed to the end portions of said paired partition members such that when an object is to be allowed to travel through the passageway defined by said paired partition members, that pair of gate members alone whose free ends project in the advancing direction of said object are actuated and the other pair of gate members remain open.
Claim 6
Dependent Claim
47 words
A gate equipment according to claim 1 comprising a pair of depressions (6) formed in the facing sides of the paired partition members (2) for receiving the gate members (5) when they are opened, so as to render flush the entire facing surfaces of said partition members.
Claim 7
Dependent Claim
23 words
A gate equipment according to claim 1 wherein said first shafts are substantially vertical, and said gate members rotate about said vertical shafts.
Claim 8
Dependent Claim
47 words
A gate equipment according to claim 1 wherein said gate members project from their respective partition members with an angle of less than 90* with respect to the direction of movement of an object passing through said passingway, when said gate members are in their closed state.
Claim 9
Dependent Claim
14 words
A gate equipment according to claim 7 said angle of projection is approximately 45*.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |