IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0781662
(1985-09-30)
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발명자
/ 주소 |
- Weinerman Lee S. (Medina OH) Vargus Joel T. (Middleburg Hts. OH)
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출원인 / 주소 |
- The Eastern Company (Strongsville OH 02)
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인용정보 |
피인용 횟수 :
19 인용 특허 :
1 |
초록
▼
A cabinet latch has a generally cylindrical body that is mountable on a closure panel or the like. A passage is formed through the body along a center axis, and opens through forward and rearward end regions of the body. Operating components are protectively nested within the body passage, including
A cabinet latch has a generally cylindrical body that is mountable on a closure panel or the like. A passage is formed through the body along a center axis, and opens through forward and rearward end regions of the body. Operating components are protectively nested within the body passage, including a primary operating element that is formed as a three-piece assembly including a generally cylindrical tool-receiving core and a pair of semi-circular sleeve halves that are journaled for rotation within the forward end region of the body passage. An elongate shank has a portion that projects from the rearward end of the body passage and carries a pawl. The shank and the pawl are rotatable about and movable axially along the center axis to position the pawl among unlatched, latched and latched-clamped positions for selectively releasing, retaining, and securely clamping the closure in a closed position relative to an associated cabinet or the like. Movement of the pawl is effected in response to rotation of the primary operating element, and is controlled by the interactive operating components that are carried within the body passage. A half turn rotation of the primary operating element in one direction of rotation causes the pawl to move in sequence (1) by rotating a quarter turn about the center axis from an unlatched position to a latched position, and (2) by translating axially along the center axis from the latched position to a latched-clamped position. A half turn rotation of the primary operating element in the opposite direction reverses the pawl\s movements. A snap ring holds the operating components in place within the body.
대표청구항
▼
A clamping type cabinet latch, comprising: (a) body means having a generally cylindrical body for mounting the latch on a closure or the like, the body having a passage extending therethrough along an imaginary center axis; (b) pawl means that is rotatable and translatable relative to the body along
A clamping type cabinet latch, comprising: (a) body means having a generally cylindrical body for mounting the latch on a closure or the like, the body having a passage extending therethrough along an imaginary center axis; (b) pawl means that is rotatable and translatable relative to the body along the center axis for movement among unlatched, latched, and latched-clamped positions for selectively releasing, retaining, and securely clamping the closure in a closed position relative to an associated cabinet door frame or the like; (c) operating element means for rotation relative to the body through a limited range of movement in clockwise and counterclockwise directions about the center axis for operating the latch; (d) operating component means including an assembly of operating components that are protectively nested within the body for drivingly interconnecting the operating element means with the pawl means for effecting movement of the pawl means relative to the body among said unlatched, latched, and latched-clamped positions in response to clockwise and counter-clockwise rotations of the operating element means about the center axis, with the assembly of operating components being nestable one within another and being insertable as an assembly into the body; (e) retainer means for cooperating with the body for releasably retaining the assembly of operating components within the body but being removable with ease to provide access to the operating components for lubrication, service and repair; (f) the assembly of operating components including: (i) an elongate, generally cylindrical shank having a forward end region, a rearward end region, and an outer surface that interconnects the forward and rearward end regions, the shank being oriented to extend substantially concentrically along the central axis with its forward end region positioned within the body passage, with its outer surface extending from within the confines of the body passage and rearwardly out of the body passage, and with its rearward end region located rearwardly with respect to the body, the shank having a generally radially extending hole formed therethrough with opposed ends of the hole opening through the outer surface of the shank at a location within the confines of the passage; (ii) a pin having a central portion that is received by the hole formed in the shank, and having opposed end regions that project radially outwardly from the outer surface of the shank into close proximity with diametrically opposed portions of the inner surface of the body passage; (iii) inner plug means formed as a one-piece member that extends along the center axis and has forward and rearward ends, the inner plug means having: (A) a generally cylindrical sleeve portion having a substantially uniform outer diameter that extends concentrically about and axially along the center axis from the forward end of the inner plug means toward the rearward end thereof; (B) interconnection means for interconnecting the inner plug means and the body to prevent relative rotation therebetween; (C) a hole formed through the sleeve portion and through the washer-like portion and having a substantially uniform inner diameter that extends along the center axis, with the inner diameter being operable to journal the outer surface of the shank for rotation therein relative to the inner plug means; and, (D) a pair of generally L-shaped slots formed in the sleeve portion and opening through the inner diameter and the outer diameter of the sleeve portion, with each of the slots having first and second leg portions that extend substantially orthogonally relative to each other, with the first leg portions extending substantially axially with respect to the center axis, and with the second leg portions extending substantially circumferentially about the sleeve portion, and with the opposed end regions of the pin extending through the generally L-shaped slots; (iv) outer plug means formed as a three-piece assembly of interfitting parts that extends along the center axis and has forward and rearward ends, the outer plug means having a pair of semi-circular sleeve halves and a generally cylindrical core, with the sleeve halves being arranged to form a tubular structure with portions thereof surrounding and interfitting with portions of the core to establish driving connections among the sleeve halves and the core, and with the sleeve halves and the core cooperating to define: (A) a generally cylindrical sleeve portion having a substantially uniform outer diameter that extends concentrically about and axially along the central axis from the rearward end of the outer plug means toward the forward end thereof, the uniform outer diameter of the outer plug means being of a size that enables it to be journaled for smooth rotation about the center axis by the inner diameter of the body; (B) a relatively reduced diameter portion that defines the forward end of the outer plug means, the reduced diameter portion being formed integrally with the sleeve portion and extending along the center axis into the reduced diameter forward end region of the passage formed in the body; (C) a hole formed in the sleeve portion and opening through the rearward end of the outer plug means, the hole having a substantially uniform inner diameter that extends along the center axis, the inner diameter being operable to journal the outer diameter of the inner plug means for rotation therein relative to the outer plug means; and, (D) a pair of generally curved cam slots formed in the sleeve portion and opening through the inner diameter and the outer diameter and the sleeve portion, with each of the slots defining cam surfaces that receive end regions of the pin.
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