DOOR STRIKER FOR PREVENTING DOOR MOVEMENT

Abstract

A door striker has an improved cross-sectional shape so that a latch can be maintained in close contact with the striker without back-and-forth clearance. In contrast, with conventional strikers, a door may make noise by being shaken due to application of external forces including changes in indoor and outdoor air pressure. Door strikers described herein include a latch assembly on a side surface of a door, which is connected to and operated by a handle member. A striker, to which a latch of the latch assembly is fitted, is installed on a door frame. The striker has a front latching protrusion for latching a front surface of the latch and a rear latching protrusion for latching a rear surface of the latch. The front latching protrusion has a right-angled surface of a front end thereof and an inclined surface the inside thereof.

Claims

1. A door striker for preventing movement of a door, comprising: a latch assembly provided on a lateral surface of a door and operatively connected to a handle member; and a striker, to which a latch of the latch assembly is fitted, mounted on a door frame, wherein: the striker has a front sill for latching a front surface of the latch and a rear sill for latching a rear surface of the latch, wherein the front sill has a right-angled surface at a front end and an inner inclined surface so that, when inserting the latch, an end of the front surface of the latch contacts the inclined surface 12b via an elastic member in the latch assembly while keeping the rear surface of the latch in contact with the rear sill, and even when the door is pushed to one side by an external force and the end of the front surface of the latch slides along the inclined surface, the latch is caught by the right-angled surface at the front end to thus prevent the door from being opened.

Description

DESCRIPTION OF DRAWINGS

[0014] FIG. 1 is a plan cross-sectional view illustrating a conventional door striker with a latch engaged therewith.

[0015] FIG. 2 is a plane cross-sectional view illustrating a door striker with a latch engaged therewith, according to one embodiment of the present invention.

[0016] FIG. 3 is a plan cross-sectional view illustrating the door shown in FIG. 2, which is pulled by external force.

[0017] FIG. 4 is a perspective view illustrating a door striker according to another embodiment of the present invention.

[0018] FIG. 5 is a cross-sectional view taken along line A-A shown in FIG. 4.

BEST MODE

[0019] Hereinafter, preferred embodiments of the present invention without limitation thereto will be described in detail with reference to the accompanying drawings.

[0020] FIGS. 2 and 3 illustrate the door striker and a state wherein a latch is coupled to the door striker according to one embodiment of the present invention.

[0021] As shown in the figures, according to this embodiment, a latch assembly is mounted at a lateral surface of a door 30 and operatively connected to a handle member. Further, a striker 10, to which a latch 20 of the latch assembly is fitted and engaged, is mounted on a door frame 40. In this regard, the striker 10 includes a front sill 12 for latching a front surface 22 of the latch, as well as a rear sill 14 for latching a rear surface 24 of the latch, wherein the front sill 12 is composed of a right-angled surface 12a at a front end and an inner inclined surface 12b so that, when inserting the latch 20, an end 22a of the front surface 22 of the latch 20 contacts the inclined surface 12b by an elastic member (not shown) in the latch assembly while keeping the rear surface 24 of the latch 20 in contact with the rear sill 14 (see FIG. 2), and wherein, even when the door 30 is pushed to one side by external force and the front surface 22 of the latch 20 slides along the inclined surface 12b, the latch is caught by the right-angled surface 12a at the front end to thus prevent the door 30 from being opened (see FIG. 3).

[0022] An angle of the inclined surface 12a of the front surface 12 should be designed in consideration of a thickness of the latch 20 (see reference numeral d in FIG. 1) and a width in the front and rear sides of a groove in the striker 10 (see reference numeral D in FIG. 1). Therefore, it is preferable to form an angle at which the end of the front surface 22 of the latch 20 may contact at any position of the inclined surface 12 while the latch 20 is completely protruded and, at the same time, the rear surface 24 of the latch 20 may be in continuous contact with a front end of the rear sill 14 in the striker 10.

[0023] Further, a border between the inclined surface 12b and the right-angled surface 12a may exist in a proper depth such that the latch 20 may maintain a state of being stably stuck to the door striker 10, and preferably, a length of about the protruding length of the latch 20.

[0024] In the present embodiment, the latch 20 has the front surface 22 in a plane shape and the rear surface 24 in an arc shape, however, the present invention is not limited to the above embodiment and may of course be applied to any latch including front and rear surfaces 22 and 24 in a plane form.

[0025] Further, in the present embodiment, the door striker 10 is represented as an injection-molded or cast product wherein the front sill 12 and the rear sill 14 for latching the latch 20 are integrated with an inner bottom surface 16. However, the present invention is not limited to the above embodiment and, as shown in FIGS. 4 and 5, may be applied to a press-worked door striker without a bottom surface (16; see FIGS. 2 and 3). Further, the door striker may be fabricated with two parts, that is, a plate member exposed to a front surface of the door frame and a groove member embedded inside the door frame, wherein the inclined surface 12b as well as the right-angled surface 12a (of the front sill 12) are disposed at one side of the groove member embedded inside the door frame, thereby attaining the same functions and effects as the striker according to the above embodiment or another embodiment described later. Still further, a groove member having such an inclined surface and a right-angled surface as described above may be put into the existing plate member, thereby exhibiting the same functions and effects as described above. Accordingly, it is obviously understood that such simple alterations or modifications are within the scope of the present invention described below.

[0026] FIGS. 4 and 5 illustrate a door striker, to which a latch is coupled, according to another embodiment of the present invention.

[0027] The door striker 10 according to the present embodiment is manufactured through press working, wherein a front sill 12 has a right-angled surface 12a and an inclined surface 12b while a rear sill 14 is in a perforated condition.

[0028] The door striker 10 according to the present embodiment is manufactured using an iron or stainless steel sheet material by a press working process, wherein thread holes 19 are formed on upper and lower portions of a front surface 18 in order to couple the striker to a door frame 40 using a fixing screw not shown in the figures, and wherein an inclined guide 17 is integrally provided at one side of the front surface 18 in order to prevent collision of a door 30 to a rear surface 24 of a latch 20 and, at the same time, to slightly press and guide the latch 20 to a groove in the striker.

[0029] As described above, the door striker according to the present invention is characterized in that: when inserting the latch, the latch protruded by the elastic member inside the latch assembly may be maintained to closely contact with the front and rear surfaces of the door striker, thereby preventing the door from rattling or shaking despite of wind or a change between indoor and outdoor air pressures.

[0030] Therefore, it is possible to keep a room quiet, eliminate an uneasy feeling due to rattling of the door and prevent the latch from being unfastened from the striker, thereby achieving advantages that completely ensure protection of privacy and enable the quality of the door.

DESCRIPTION OF REFERENCE NUMERALS

[0031] 10: Door striker [0032] 12: Front sill [0033] 12a: Right-angled surface [0034] 12b: Inclined surface [0035] 14: Rear sill [0036] 16: Bottom surface [0037] 17: Guide [0038] 18: Front surface [0039] 19: Thread hole [0040] 20: Latch [0041] 22: Front surface [0042] 24: Rear surface [0043] 30: Door [0044] 40: Door frame [0045] d: Thickness of latch [0046] D: Width in front and rear sides of striker