Enclosure safety latch

• US 5,711,554 A
• Filed: 05/21/1996
• Issued: 01/27/1998
• Est. Priority Date: 05/21/1996
• Status: Expired due to Fees

• Current Assignee: BRK Brands Incorporated (Newell Brands Inc.)
• Original Assignee: BRK Brands Incorporated (Newell Brands Inc.)
• Inventors: Brown, David C., Thuma, Michael C., Scherer, Craig S.
• Primary Examiner(s): Lindsey, Rodney M.
• Application Number:
  US08/651,832
• Time in Patent Office: 616 Days
• Field of Search: 292/19, 292/17, 292/37, 292/38, 292/83, 292/85, 292/87, 292/DIG. 16, 292/DIG. 19, 292/DIG. 38
• US Class Current: 292/19
• CPC Class Codes: E05B 65/0014 to prevent opening by children E05B13/00 takes precedence; child-proof container closures B65D50/00
• CPC Class Codes: E05C 19/06 in which the securing part if formed or carried by a spring and moves only by distortion of the spring, e.g. snaps
• CPC Class Codes: E05C 3/14 with operating handle or equivalent member rigid with the latch E05C3/122 takes precedence
• CPC Class Codes: E05C 3/34 with simultaneously operating double bolts locks for sliding wings with bolts pivoting about an axis parallel to the wings E05B65/0835, comprising simultaneously pivoting double hook-like locking members E05B65/0858
• CPC Class Codes: Y10T 292/0817 Spring arm
• CPC Class Codes: Y10T 292/082 Spring arm
• CPC Class Codes: Y10T 292/0902 Rigid

Abstract

A safety latch for latching a door of an enclosure to the enclosure includes a receiving member mounted to the enclosure and a latching member engageable with the receiving member, adapted to be mounted to the enclosure door. The receiving member includes a base portion for mounting to the enclosure and a receiving post-extending from the base portion. The receiving post has first and second diverging surfaces. The latching member has first and second generally symmetrical, opposingly oriented, spaced apart, biased latching elements. The latching elements are biased toward one another, and are configured for independent locking engagement with the receiving post when the receiving post is inserted into the latching member. Each of the latching elements includes a releasing member extending therefrom and operably connected thereto for releasing the latching member from locking engagement with the receiving post.

Claims

1. A safety latch for latching a door of an enclosure to the enclosure, comprising:

a receiving member having a base portion for mounting to a fixed surface of the enclosure, and a receiving post extending from said base portion, said receiving post having first and second diverging surfaces;

a latching member engageable with said receiving post, said latching member having a base portion for mounting to the door, and having first and second generally symmetrical, spaced apart, biased latching elements, said latching elements extending from one end connected to said base portion to a second end and being biased toward one another, and configured for independent locking engagement with said receiving post when said receiving post is inserted into said latching member, each of said latching elements including a releasing member extending therefrom and operably connected thereto for releasing said latching element from locking engagement with said receiving post.

2. The safety latch of claim 1 wherein said latching elements are opposingly oriented.

3. The safety latch of claim 1 wherein each said latching element includes a hook-shaped portion extending toward the other said latching element, said hook-shaped portions defining a substantially enclosed latching region, wherein said hook-shaped potions are engageable with said receiving post when said post is disposed within said latching region.

4. The safety latch of claim 3 wherein said releasing members are connected to their respective latching elements by a lever portion, and wherein movement of said releasing members toward one another moves said hook shaped portions away from one another to thereby release said latching member from said receiving post.

5. The safety latch of claim 1 wherein said latching elements each include an inclined guide surface extending from an end thereof distally of said base portion, each said guide surface diverging from the other, said guide surfaces being adapted to engage and move along said receiving post in a camming manner when said latching member is engaged therewith, to facilitate insertion of said receiving post into said latching member.

6. The safety latch of claim 1 wherein said receiving post includes a pair of locking projections extending from said diverging surfaces, said locking projections enhancing engagement of said latching member to said receiving post.

7. The safety latch of claim 4 wherein said releasing members extend from each said latching element intermediate said base portion and said hook shaped portion, said releasing members extending generally toward said base portion, and being adapted to release said latching member from said receiving post when said releasing members are urged, toward one another, to separate said hook shaped portions, one from the other, to permit disengagement of said latch member from said post.

8. The safety latch of claim 1 wherein at least one of said receiving member base portion and said latching member base portion defines slotted openings therein for adjustable mounting of said at least one of said receiving member base portion and said latching member base portion relative to a respective other one of said receiving member base portion and said latching member base portion.

9. A safety latch for latching a door of an associated enclosure comprising:

a receiving member adapted to be mounted to the enclosure, said receiving member including a receiving post having at least one locking member thereon; and

a latching member including a pair of spaced apart, opposingly oriented latching elements, said latching elements extending from a first end to a second end and being independently engageable with said receiving post, said latching elements including hook members which define a substantially enclosed latching region when said latching elements are in their biased state, said latching region enclosing said receiving post when the safety latch is in a latched condition, each said latching element further including a releasing portion thereon extending from intermediate said first and second ends and configured to move said latching elements from said biased state to a state wherein said latching elements permit release of said receiving post from said latching region to disengage said receiving post from said latching member.

10. The safety latch of claim 9 wherein said hook members each include a locking projection extending therefrom for engaging said receiving post to secure said post in said latching region when said post is disposed therein.

11. The safety latch of claim 9 wherein said receiving post includes a pair of diverging surfaces adapted to coact with said latching member in a camming manner to facilitate engagement of said latching member with said receiving post.

12. The safety latch of claim 9 wherein said latching member includes a pair of inclined guide surfaces adapted to coact with said receiving post in a camming manner to facilitate engagement of said latching member with said receiving post.

13. The safety latch of claim 10 wherein said receiving post includes a pair of locking lips extending therefrom configured to engage said locking projections to enhance engagement of said latching member with said receiving post.