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JP-7857373-B2 - Door lock assembly

JP7857373B2JP 7857373 B2JP7857373 B2JP 7857373B2JP-7857373-B2

Inventors

  • ワン ヤン

Assignees

  • イリノイ トゥール ワークス インコーポレイティド

Dates

Publication Date
20260512
Application Date
20241023
Priority Date
20231024

Claims (20)

  1. A door lock assembly (100) for locking the door of an electrical appliance, A cam (112) configured to rotate clockwise or counterclockwise around a camshaft (124), A slider (116) is configured to fit and engage with the cam (112) so that when the cam (112) rotates clockwise or counterclockwise, the slider (116) can reciprocate along the length of the slider (116) with respect to the slider (116), wherein the slider (116) includes a movement guide groove (202) defining a conventional movement path (ABCDA) including a first segment (ABC) of the conventional movement path and a second segment (CDA) of the conventional movement path, and the first segment (ABC) and the second segment (CDA) of the conventional movement path are connected to each other. A pin assembly (114) wherein the end of the pin assembly (114) is configured to move relative to the slider (116) in the conventional movement path (ABCDA) defined by the movement guide groove (202) as the slider (116) moves back and forth, Equipped with, A door lock assembly characterized in that the movement guide groove (202) further defines an alternative movement path (CA), and the pin assembly (114) is further configured such that, as the slider (116) moves back and forth, the end of the pin assembly (114) can move relative to the slider (116) in the alternative movement path (CA) defined by the first segment (ABC) of the conventional movement path and the movement guide groove (202), but does not move in the second segment (CDA) of the conventional movement path.
  2. The aforementioned moving guide groove is a heart-shaped guide groove (202), and the aforementioned conventional moving path (ABCDA) is a heart-shaped moving path (ABCDA), and the heart-shaped moving path (ABCDA) is provided with four path points, including, in order, the intersection point A of the heart-shaped bottom, the vertex B of the first heart-shaped side path, the intersection point C of the heart-shaped top, and the vertex D of the second heart-shaped side path. The door lock assembly according to claim 1, characterized in that the alternative movement path (CA) is located between the heart-shaped upper intersection C and the heart-shaped bottom intersection A, thereby allowing the pin assembly (114) to move directly from the heart-shaped upper intersection C to the heart-shaped bottom intersection A without passing through the heart-shaped second side path vertex D.
  3. The first segment (ABC) of the conventional travel path is a heart-shaped first side path (ABC), and the second segment (CDA) of the conventional travel path is a heart-shaped second side path (CDA). The heart-shaped first side path (ABC) is formed from the bottom intersection A of the heart shape through the vertex B of the first side path of the heart shape to the top intersection C of the heart shape. The heart-shaped second side path (CDA) is formed from the upper intersection C of the heart shape through the vertex D of the second side path of the heart shape to the bottom intersection A of the heart shape. The first heart-shaped side path (ABC) and the second heart-shaped side path (CDA) are protruding movement paths, and the vertex B of the first heart-shaped side path and the vertex D of the second heart-shaped side path are the highest protruding points of the first heart-shaped side path (ABC) and the second heart-shaped side path (CDA), respectively. A concave path is formed from the first side path vertex B of the heart shape to the upper intersection C of the heart shape, and from the upper intersection C of the heart shape to the second side path vertex D of the heart shape. The door lock assembly according to claim 2.
  4. The door lock assembly according to claim 3, characterized in that the heart-shaped movement path (ABCDA) is a unidirectional movement path, and movement along the heart-shaped movement path passes through the heart-shaped bottom intersection A, the heart-shaped first side path vertex B, the heart-shaped upper intersection C, and the heart-shaped second side path vertex D in order, and finally returns to the heart-shaped bottom intersection A.
  5. When the door is in the open position, the pin assembly (114) is located at the heart-shaped bottom intersection A. When the door is in the closed position, the pin assembly (114) is located at the heart-shaped upper intersection C. When the door hook (101) of the door is in its maximum insertion position, the pin assembly (114) is located at the vertex B of the first heart-shaped side path or the vertex D of the second heart-shaped side path. When the door is subjected to a first inward force in the open position, the pin assembly (114) moves from the heart-shaped bottom intersection A to the heart-shaped first side path vertex B, and the door hook (101) moves to the maximum insertion position. After the first inward force is removed, the pin assembly (114) moves from the first side path vertex B of the heart shape to the upper intersection C of the heart shape, and the door moves to the closed position. When the door receives a second inward force in the closed position, the pin assembly (114) moves from the heart-shaped upper intersection C to the heart-shaped second side path vertex D, and the door hook (101) moves again to the maximum insertion position. The door lock assembly according to claim 2, characterized in that, after the second inward force is removed, the pin assembly (114) moves from the apex D of the second heart-shaped side path back to the intersection A of the heart-shaped bottom, and the door returns to the open position.
  6. The door lock assembly according to claim 5, characterized in that the alternative travel path (CA) is a release guide groove (204, 1004) provided on the slider (116).
  7. The diameter of the end of the pin assembly (114) is greater than the groove width of the release guide groove (204), The door lock assembly according to claim 6, characterized in that when the door is in the closed position and subjected to an outward force, the pin assembly (114) applies a pressing force to the two side walls of the release guide groove (204), thereby expanding the release guide groove (204) in the groove width direction, so that the pin assembly (114) can move within the release guide groove (204) from the heart-shaped upper intersection C to the heart-shaped bottom intersection A.
  8. When the door is in the closed position and subjected to an outward force, the door hook (101) of the door pulls the cam (112) outward, causing the cam (112) to tend to rotate counterclockwise, thereby driving the slider (116) to tend to move in the first direction, thereby allowing the pin assembly (114) to press the release guide groove (204) of the slider (116) at the heart-shaped upper intersection C, thereby enabling the pin assembly (114) to press the release guide groove (204) of the slider (116) toward the heart-shaped bottom intersection A, thereby the release guide groove (204) A pressing force is transmitted toward two side walls, and the pressing force presses the groove width of the release guide groove (204) to expand to accommodate the end of the pin assembly (114), thereby allowing the slider (116) to move in the first direction relative to the pin assembly (114) without hindering the counterclockwise rotation of the cam (112), ultimately enabling the door to open, and at the same time, the pin assembly (114) moves in the release guide groove (204) of the slider (116) from the heart-shaped upper intersection C to the heart-shaped bottom intersection A, as described in claim 7.
  9. The door lock assembly according to claim 8, characterized in that the release guide groove (204) is a hollow groove or a non-hollow groove.
  10. The door lock assembly according to claim 8, characterized in that the release guide groove (204) is a straight guide groove.
  11. The release guide groove (1004) is provided with a baffle (1006) near the heart-shaped upper intersection C, and the pin assembly (114) is configured to apply force to the baffle (1006). The door lock assembly according to claim 8, characterized in that when the force applied to the baffle (1006) exceeds a threshold that the baffle (1006) can withstand, the baffle (1006) is destroyed, thereby allowing the pin assembly (114) to move through the release guide groove (1004) from the heart-shaped upper intersection C to the heart-shaped bottom intersection A.
  12. A housing (104, 106) wherein the cam (112), the slider (116), and the pin assembly (114) are arranged inside the housing (104, 106). The door lock assembly according to claim 11, further comprising the following:
  13. The pin assembly (114) comprises a pin housing (302) and a pin (304), a portion of which the pin (304) is housed in the pin housing (302), and the bottom end of the pin (304) protrudes from the bottom of the pin housing (302). The door lock assembly according to claim 12, characterized in that the pin (304) is configured to move along the heart-shaped movement path (ABCDA).
  14. The door lock assembly according to claim 13, characterized in that the housing (104, 106) has a pin cavity (142) in which the pin housing (302) is housed, and the pin cavity (142) is configured to restrict the movement of the pin assembly (114) within the pin cavity (142) in the longitudinal direction of the slider (116), but to allow the movement of the pin assembly (114) within the pin cavity (142) in the width direction of the slider (116).
  15. The cam (112) includes lock hooks (152, 154, 156) configured to engage with the door hook (101) to lock the door hook (101), the door hook (101) being mounted on the door, The door lock assembly according to claim 14, characterized in that the door hook (101) is configured to engage with or disengage from the lock hooks (152, 154, 156) when the door is closed or opened, thereby allowing the cam (112) to rotate clockwise or counterclockwise.
  16. The door lock assembly according to claim 15, characterized in that the housing (104, 106) has a lock hole (108) through which the door hook (101) passes and engages with the lock hooks (152, 154, 156).
  17. The housing (104, 106) further comprises a microswitch (118), The microswitch (118) is in the off state when the door is in the open position. During the process of closing the door, the pin (304) moves along the first segment (ABC) from the heart-shaped bottom intersection A to the heart-shaped top intersection C, and the microswitch (118) is turned on. The door lock assembly according to claim 16, characterized in that during the process of opening the door, the pin (304) moves along the second segment (CDA) from the heart-shaped upper intersection C to the heart-shaped bottom intersection A, and the microswitch (118) is turned off.
  18. The slider (116) has a microswitch operating part (208) located at one end thereof. The clockwise rotation of the cam (112) prevents the movement of the slider (116) in the second direction from being obstructed during the process of closing the door, thereby allowing the slider (116) to move in the second direction, which in turn triggers the microswitch actuation unit (208) to activate the microswitch (118), thereby turning the microswitch (118) on, or The door lock assembly according to claim 17, characterized in that the counterclockwise rotation of the cam (112) drives the slider (116) to move in the first direction during the process of opening the door, thereby allowing the microswitch actuation unit (208) to disengage from the microswitch (118), thereby allowing the microswitch (118) to be turned off.
  19. A cam torsion spring (120) is configured to engage with the cam (112) and provide a driving force to drive the cam (112) to rotate counterclockwise, A slider spring (122) is configured to engage with the slider (116) and provide a driving force to drive the slider (116) to move in the second direction, The door lock assembly according to claim 18, further comprising the following:
  20. The door lock assembly according to claim 1, characterized in that the electrical equipment is a dryer.

Description

This disclosure relates to a door lock assembly, and more particularly to a door lock assembly for opening the door of an electrical appliance in various ways. Door lock assemblies can be used to lock or unlock the doors of electrical appliances (such as dryers, washing machines, or dishwashers). To function properly, electrical appliances have many requirements for their door lock assemblies. For example, it is necessary to provide users with various convenient methods for opening the appliance's door while ensuring reliable operation under various conditions. This disclosure provides a door lock assembly that allows the user to open and close the door not only by a push-push method from the outside, but also by a push-pull method. When the door is closed (locked), it can also be opened by pushing it from the inside. According to a first aspect of this disclosure, a door lock assembly is provided. The door lock assembly is configured to lock the door of an electrical appliance and comprises a cam, a slider, and a pin assembly. The cam is configured to rotate clockwise or counterclockwise around a camshaft, and the slider is configured to fit and engage with the cam so that, as the cam rotates clockwise or counterclockwise, the slider can reciprocate along the length of the slider with the rotation of the cam. The slider has a travel guide groove that defines a conventional travel path, which includes a first segment and a second segment, these segments being connected to each other. The pin assembly is configured so that the ends of the pin assembly can move relative to the slider along the conventional travel path defined by the travel guide groove with the reciprocating movement of the slider, and the travel guide groove further defines an alternative travel path, and the pin assembly is further configured so that the ends of the pin assembly can move relative to the slider along the reciprocating movement of the slider in the first segment of the conventional travel path and the alternative travel path defined by the travel guide groove, but not in the second segment of the conventional travel path. According to a first aspect of this disclosure, the moving guide groove is a heart-shaped guide groove, the conventional moving path is a heart-shaped moving path, and the heart-shaped moving path is provided with four path points, including, in order, a heart-shaped bottom intersection A, a heart-shaped first side path vertex B, a heart-shaped upper intersection C, and a heart-shaped second side path vertex D. The alternative movement path is located between the heart-shaped upper intersection C and the heart-shaped bottom intersection A, thereby allowing the pin assembly to move directly from the heart-shaped upper intersection C to the heart-shaped bottom intersection A without passing through the heart-shaped second side path vertex D. According to a first aspect of this disclosure, the first segment of the conventional travel path is a heart-shaped first side path, and the second segment of the conventional travel path is a heart-shaped second side path. The first side path of the heart shape is formed from the bottom intersection A of the heart shape, through the first side path vertex B of the heart shape, to the top intersection C of the heart shape. The second lateral path of the heart shape (CDA) is formed from the upper intersection C of the heart shape, through the vertex D of the second lateral path of the heart shape, to the bottom intersection A of the heart shape. The first heart-shaped lateral path and the second heart-shaped lateral path (CDA) are protruding movement paths, and the vertex B of the first heart-shaped lateral path and the vertex D of the second heart-shaped lateral path are the highest protruding points of the first heart-shaped lateral path and the second heart-shaped lateral path (CDA), respectively. A concave path is formed from the first side path vertex B of the heart shape to the upper intersection C of the heart shape, and from the upper intersection C of the heart shape to the second side path vertex D of the heart shape. According to a first aspect of this disclosure, the heart-shaped movement path is a unidirectional movement path, and movement along the heart-shaped movement path passes sequentially through the heart-shaped bottom intersection A, the heart-shaped first side path vertex B, the heart-shaped top intersection C, and the heart-shaped second side path vertex D, finally returning to the heart-shaped bottom intersection A. According to a first aspect of this disclosure, when the door is in the open position, the pin assembly is located at the heart-shaped bottom intersection A, When the door is in the closed position, the pin assembly is located at the upper intersection C of the heart shape. When the door hook of the door is in its maximum insertion position, the pin assembly is located at either the first side path vertex B or the second side path vertex