JP2002303062A - Strike for slide latch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a strike for a slide latch without making any unpleasant sounds, when the strike is engaged with a latch piece. SOLUTION: The strike for the slide latch includes a vertical square back plate 21, an upper side member 22 formed of an upper plate 22a projected horizontally forward, from the upper end side of the back plate 21 and a vertical downward plate 22b from the front end of the upper plate 22a, a lower side member 23 formed of a lower plate 23a projected to a forward horizontal from the lower end side of the back plate 21 and a vertical upward plate 23b from the front end of the lower plate 23a, a housing 2 forming an approximately hand drum longitudinal section shaped space section between the lower edge of the downward plate and the upper edge of the upward plate 23b, a vertical square front plate 31, a square upper plate 32 projected to a backward horizontal from the upper end side of the front plate 31, a square lower plate 33 projected to a backward horizontal from the lower end side of the front plate 31, a fiat projection 34 slightly projected to the central part between both right and left of the front plate 31 and an inner cover 3 of an elastic material, formed of the upper edge and the lower edge of the projection 34, into a shape of an approximately hand drum longitudinal section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a strike used for a slide latch of a door lock.

[0002]

2. Description of the Related Art Conventional slide latches are easy and reliable to use and are frequently used. (For example, actual fair 4-
At the time of locking by the slide latch, the latch piece of the slide latch fixed to the end of the door that opens and closes moves to the side of the door frame adjacent to the end of the door and is fixed to the door frame. Engaged with the latch
The latch used here has a simple structure of a substantially L shape or a box shape having an opening through which the latch piece can enter and exit.

[0003]

Although the conventional latch has a simple structure, its appearance is not preferable from the viewpoint of aesthetics. There has been a problem that a contact noise is generated during or during the engagement and the discomfort is caused. INDUSTRIAL APPLICABILITY The present invention can be easily assembled on a construction site, exhibits a beautiful appearance, is hard to be mischievous by touching the fixing portion from the outside, and is unpleasant when the latch piece and the latch are engaged or during engagement. It is an object of the present invention to obtain a strike for a slide latch that does not generate sound.

[0004]

In order to achieve the above object, according to the first aspect of the present invention, a) a rear plate 21 having a vertical rectangular shape, and a horizontal direction extending from an upper end side of the rear plate 21 in a forward direction. An upper member 22 formed by an upper plate 22a protruding from the upper plate 22a and a downward plate 22b perpendicular to the front end of the upper plate 22a, and a lower plate 2 protruding forward from the lower end of the rear plate 21 in the horizontal direction.
3a and upward plate 23b in the vertical direction from the front end of lower plate 23a
And a lower member 23 formed of
A housing 2 in which a substantially drum-shaped cross-sectional space is formed between a lower edge of the upper plate 2b and an upper edge of the upward plate 23b; b) a front plate 31 having a vertical rectangular shape; A rectangular upper plate 32 projecting in the horizontal direction, and a rectangular lower plate 33 projecting horizontally from the lower end of the front plate 31 in the rearward direction.
And a front flat projection 34 slightly protruding from the left and right central portions of the front plate 31. The upper and lower edges of the projection 34 are formed in a substantially drum-shaped cross section. And c) pressing the upper plate 32 and the lower plate 33 in the vertical direction to bend the front plate 31 and the projections 34 rearward, thereby attaching the inner cover 3 to the side of the housing 2. The protrusion 3 is inserted into the space of the housing 2 by press-fitting.
4 Solved by a slide latch strike with the upper and lower edges fitted. According to the second aspect of the present invention, the lower edge of the downward plate 22b of the housing 2 is formed in an inverted trapezoidal convex shape by the downwardly inclined portion 22c, the flat portion 22d, and the upwardly inclined portion 22e from the left side to the right side, The upper edge of the upward facing plate 23b is formed in a trapezoidal convex shape by the upwardly inclined portion 23c, the flat portion 23c, and the downwardly inclined portion 23e, and the upper edge of the projection 34 of the inner cover 3 is inclined downwardly by the right portion 34.
a, a flat portion 34b and an upwardly inclined portion 34c are formed in an inverted trapezoidal concave shape, and the lower edge of the projection 34 is formed in a trapezoidal concave shape by an upwardly inclined portion 34d, a flat portion 34e and a downwardly inclined portion 34f. The strike for a slide latch according to item 1 can be provided. Claim 3
In the present invention, the angle formed between the inclined portion 22c and the inclined portion 23c of the downward plate 22b, the inclined portion 22e and the inclined portion 23
It is preferable that the strike for the slide latch according to the second aspect of the present invention is such that the angle formed with e is the same value. According to the invention of claim 4, the left and right widths of the rear plate 21 of the housing 2 are made smaller than the left and right widths of the upper plate 22a and the lower plate 23a, and the rear plate 21 is separated from the left and right of the upper plate 22a and the lower plate 23a. The strike for a slide latch according to any one of claims 1 to 3, which is fixed to one side. Claim 5
According to the invention, the small protrusion 32a is provided at the rear edge of the upper plate 32 of the inner cover 3 and the small protrusion 33a is provided at the rear edge of the lower plate 33.
The small projection 3 is provided at the corner of the rear plate 21 of the housing 2.
It is preferable that the strike for slide latch according to any one of claims 1 to 4 is provided with a stopper hole 21c which can be inserted corresponding to 2a and 33a. In the invention of claim 6, it is preferable that the strike of the slide latch according to any one of claims 1 to 5, wherein the corner of the lower plate 33 of the inner cover 3 is cut out.

[0005]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is an exploded perspective view of an example of the strike of the present invention. FIG. 2 is a diagram showing the inner cover constituting the strike of FIG. FIG. 3 is a diagram showing a housing constituting the strike of FIG. FIG. 4 is a perspective view showing the relationship between the strike and the slide latch of FIGS. The positional relationship of the components is described in the state of use as a strike, and the side where the slide latch is operated is front or inside, and the open / close display panel side is back or outside.

A strike 1 according to an example of the present invention includes a housing 2, an inner cover 3, a liner 4, and a fastener 5.
And Here, the liner 4 is of an optional configuration. The housing 2 is made of a metal such as iron, aluminum, brass or the like or a hard plastic, and has a vertically-square rear plate 21 and an upper plate 2 projecting forward and horizontally from an upper end side of the rear plate 21.
An upper member 22 formed in a substantially inverted L-shape when viewed from the side by 2a and a vertically downward plate 22b, a lower plate 23a projecting forward and horizontally from a lower edge of the rear plate 21 and a vertically upward plate 23b. And a lower member 2 formed substantially in an L-shape in side view.
And 3. The lower edge of the downward plate 22b is formed in an inverted trapezoidal convex shape by a downward slope portion 22c, a flat portion 22d, and an upward slope portion 22e from the left to the right, and the upper edge of the upward plate 23b is to the right from the left. The trapezoidal convex portion 23c, the flat portion 23d, and the downward slope portion 23e form a trapezoidal convex shape, and the lower edge of the inverted trapezoidal downward plate 22b and the upper edge of the trapezoidal upward plate 23b face each other. A space portion having a substantially vertical drum-shaped cross section is formed therebetween. Here, the gradient parts 22c and 23c and the gradient part 22e
And 23e are each taken at an angle α, which is typically 6
It is preferable that the angle is about 0 degrees, and it is preferable that the angle is symmetrical in order to cope with both right and left usability, but it is not an essential requirement. An opening connected to the left and right is formed by the upper plate 22a, the rear plate 21 and the lower plate 23a, and the opening has a width W in the left and right directions, a dimension D in the depth, and a dimension H in the up-down interval. Here, in the present example, the left and right width of the rear plate 21 is usually shorter than the left and right width W, and the rear plate 21 is fixed to one end (the left end in this example) of the upper plate 22a and the lower plate 23a and is fixed to the other side (the right side). Although it is configured to have an air gap, this is not a necessary requirement because it is for convenience in connection of components on the frame body side when the housing 2 is fixed to the door surrounding frame body. Here, the downward plate 22
b and the upward plate 23b have a thickness t. Rear plate 2
(1) A pair of mounting holes 21a into which a fixing tool 5 described later can be inserted are provided at approximately right and left center positions in a vertical direction, and small projections 4b of a liner 4 described later are provided at vertical center positions in a right and left center portion.
A pair of normal stop holes 21b into which small protrusions 32a and 33a of the inner cover 3 described later are preferably inserted at four corners as a preferable configuration are formed.
c are respectively drilled.

The inner cover 3 is made of a plastic material, such as polyurethane, nylon, or soft vinyl chloride, which is a flexible elastic material, which is easily deformed by pressing with a fingertip and can be restored when the pressing is released. Shaped front plate 31
A rectangular upper plate 32 projecting rearward and horizontally from an upper end side of the front plate 31; a rectangular lower plate 33 projecting rearward and horizontally from a lower end side of the front plate 31; A flat front projection 34 is slightly protruded along the left and right central portions of the base 31, and the upper plate 32, the front plate 31, and the lower plate 33 form a substantially U-shaped space in a side view. The projecting portion 34 has an upper edge which is inclined downward to the right from the left side to the right side, and a flat portion 3a.
4b and a right-upward slope 34c to form an inverted trapezoidal concave shape, and the lower edge is formed from the left side to the right side into a trapezoidal concave shape by a rightward-upward slope 34d, a flat portion 34e, and a rightward-downward slope 34f. The upper edge and the lower edge of the trapezoidal concave shape have a substantially drum-shaped cross section. The gradient portions 34a and 34d and the gradient portions 34c and 34f are formed by an angle α, respectively.
It is preferable that the angle α is usually about 60 degrees, and it is preferable that the angle α be symmetrical in order to cope with both right and left usability. However, it is not essential, but it is necessary to match with the housing 2. is there. Here, a substantially inverted U-shaped opening in side view formed by being surrounded by the upper plate 32, the front plate 31, and the lower plate 33 has a left-right width w, a depth outside dimension d, and an up-down interval outside dimension h. But w <W, d <
D and h <H are set. Upper plate 3
And two small projections 32a at two spaced apart positions of the rear edge of the lower plate 33 and two small projections 33 usually spaced at the separated position of the rear edge of the lower plate 33.
It is preferable to protrude a to firmly fix the inner cover 2 to the inner cover 2. The lower plate 33 is not square, but has a shape in which a corner is partially cut out along an inclined line 33 b indicated by a two-dot chain line, for example, and the lower plate 33 after the inner cover 3 is attached to the housing 2. This is preferable from the viewpoint of prevention of peeling due to deformation of. Here, the normal projection 34 is projected from the front surface of the front plate 31 by a thickness t, and the inner cover 3
At the time of assembling, the projection 34, the downward plate 22b, and the upward plate 23b are made substantially flush. Also, the upper edge of the upward plate 23b and the downward plate 22 of the housing 2 described above.
b The shape of the space at the lower edge, and the shape of the upper edge and lower edge of the protrusion 34 of the inner cover 3 are not necessarily strictly limited to a gradual portion and a flat portion, but are connected by providing a gentle curved portion in the middle. It may be formed in a planar shape. The liner 4 is made of a metal or hard plastic plate, and has a square shape having a size similar to the outer size of the square rear plate 21, and a pair of mounting holes 4 a aligned with the mounting holes 21 a of the rear plate 21. And a pair of small projections 4b that can be inserted into the stopper holes 21b, respectively, and are selectively used depending on the conditions of the door surrounding frame body to which the strike 1 is attached. The fixing device 5 can be inserted through a pair of mounting holes 21a of the rear plate 21 or through a pair of mounting holes 4a when the liner 4 is used.
Wood screws, bolts, and the like for fixing the head to the door frame.

There are various types of slide latches used in engagement with the strike 1 of the present invention. As an example, the slide latch 6 shown in FIG.
This is the same as that described in JP-A-1231. The slide latch 6 is provided with a left and right long bar-shaped latch piece 61, an inner mounting piece 62 fixed to the opening and closing door inner end, and a left and right longitudinal mounting piece 62, and fixed parallel to the inner mounting piece 62 and fixed to the outer end of the door. Left and right longitudinal outer mounting pieces 63, cover pieces 64 covering the outer mounting pieces 63, inner mounting pieces 62 and outer mounting pieces 63
And a pair of screw members 65 fixedly connected through the door.
And one rotating shaft 66 extending between the left and right intermediate portions of each screw member 65.
And The cross-sectional shape of the latch piece 61 is generally a substantially square shape, and a substantially inverted U-shaped space formed in a side view formed by being surrounded by the upper plate 32, the front plate 31, and the lower plate 33 of the inner cover 3 of the strike 1 to be engaged. It is smaller in size, so that it can cope with fluctuations in the door, door frame, and mounting position at the construction site. Also, from the time of unlocking of FIG.
The latch piece 61 is moved in the arrow Y direction or the X direction to engage with and disengage from the strike 1 as shown at the time of locking in (b), but the latch piece is interlocked with the movement of the latch piece 61 although not shown. The rotation shaft 66 is rotated by a pinion fixed to a rotation shaft 66 that meshes with a rack built in 61, and the unlocking / unlocking of the slide latch 6 can be confirmed by an open / close display plate that is visible from the outer opening of the outer mounting piece 63. It has been.

Next, strike 1 and slide latch 6
Will be described. At a normal construction site, a round hole is formed at the door end at a position corresponding to the pair of screw members 65 and one rotating shaft 66 that penetrates the door, and an inner mounting piece 62 on the inner surface of the door end is formed.
, The outer mounting piece 63 is fixed to the outer surface of the door end, and the slide latch 6 is first assembled. Next, the strike 1 is assembled.
4B, the left end of the latch piece 61 is substantially reversed in side view when the left end of the latch piece 61 is surrounded by the upper plate 32, the front plate 31, and the lower plate 33 of the inner cover 3 of the strike 1. As shown in FIG. The rear plate 21 is moved to the left end in the U-shaped space, and a position where the rear plate 21 can be inserted into a space with a gap on the right is selected and assembled. When the door to which the slide latch 6 is fixed is closed, the upper plate 22 is located at a position where the latch piece 61 can be inserted in the door surrounding frame adjacent to the door end.
a and the lower plate 23a are oriented in the horizontal direction, and the fixture 5 is removed from the space formed between the lower edge of the downward plate 22b and the upper edge of the trapezoidal upward plate 23b.
And the housing 2 is fixed to the inner surface of the door frame. When the rear plate 21 is not directly fixed to the door frame but is fixed via the liner 4, the mounting holes 21a and 4b are aligned and the fixing tool 5 is inserted and fixed to the inner surface of the door frame. In order to assemble the inner cover 3 with the housing 2, as shown in FIGS. 1 and 2 (a), the upper plate 32 and the lower plate 33 are simultaneously pressed by fingertips in the direction of the lower arrow P and in the direction of the upper arrow Q, respectively. Since the plate 31 has flexibility, it is curved in the direction of the rear arrow R, and the position of the projection 34 is slightly shifted to the rear side, and the outer dimension h between the upper plate 32 and the lower plate 33 is slightly reduced, and the door is directly rotated. From the left side of the housing 2 fixed to the frame, the housing 2 can be easily press-fitted into the opening formed by the upper plate 22a, the rear plate 21 and the lower plate 23a in the direction of the arrow X. When the inner cover 3 is completely pushed in, the inner cover 3 is rich in elasticity, restored to its original shape, and is fixed to the housing 2. Here, the upper edge of the inverted trapezoidal concave portion of the protrusion 34 on the front outer side of the inner cover 3 is fitted with the lower edge of the inverted trapezoidal downward plate 22 b of the housing 2, and the lower edge of the trapezoidal concave shape of the protrusion 34. Is fitted to the upper edge of the trapezoidal upward plate 23b of the housing 2, and the small projections 32a and 33a are fitted to the stopper holes 21c, respectively.
The inner cover 3 is securely fixed to the housing 2 in an immovable state, and the front surfaces of the inner cover 3 and the housing 2 are substantially flush. At this time, the projection 34 closes a space in a substantially drum-shaped cross section formed by the lower edge of the inverted trapezoidal downward plate 22b and the upper edge of the trapezoidal upward plate 23b on the front side of the housing 2. The inner surface of the housing 2 is covered with the upper plate 32, the front plate 31, and the lower plate 33 of the inner cover 3. Assembling of the inner cover 3 to the housing 2 can be easily performed by a simple operation of a fingertip utilizing the flexibility and elasticity of the inner cover 3.

[0010] The correlation between the slide latch 6 and the strike 1 after the assembly is completed is such that when the door is unlocked as shown in FIG.
When the door is unlocked and the door shown in FIG. 4B is locked, the latch piece 61 is moved in the direction of arrow Y, and when the door is locked, the return to unlocking is performed in the direction of arrow X and the latch piece 61 is moved. And strike 1 are engaged and disengaged. At this time, the locked / unlocked state of the door can be seen from the outside of the door by an open / close display plate that can be seen from the outside opening of the outside attachment piece 63 via the rotating shaft 66 interlocked with the movement of the latch piece 61. As described above, the inner surface of the housing 2 in contact with the latch piece 61 is covered with the inner cover 3 having flexibility and elasticity, so that the strike 1 is uncomfortable when the latch piece 61 and the strike 1 are engaged. There is no sound. Projection 34
The space portion of the housing 2 is closed by this, so that there is no mischief by touching the fixing portion from outside. Further, the strike 1 has a favorable aesthetic appearance as a whole.

[0011]

According to the strike for a slide latch of the present invention, it is possible to easily assemble it at a construction site, exhibit a favorable appearance, and to prevent mischief by putting a hand on a fixing portion from the outside. No unpleasant noise is generated when or during the engagement between the strike and the strike.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an example of a strike of the present invention.

FIGS. 2A and 2B show an inner cover constituting the strike of FIG. 1, wherein FIG. 2A is a side view, FIG. 2B is a front view, and FIG.

FIGS. 3A and 3B show a housing constituting the strike of FIG. 1, wherein FIG. 3A is a side view, FIG. 3B is a front view, FIG.
(D) It is AA 'sectional drawing.

4 is a perspective view showing the relationship between the strike and the slide latch shown in FIGS. 1 to 3, wherein (a) is unlocked and (b) is locked.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Strike 2 Housing 21 Rear plate 21a, 4a Mounting hole 21b, 21c Stop hole 22 Upper member 22a, 32 Upper plate 22b Downward plate 22c, 22e, 23c, 23e, 34a, 34c, 3
4d, 34f Inclined portion 22d, 23d, 34b, 34e Flat portion 23 Lower member 23a, 33 Lower plate 23b Upward plate 3 Inner cover 31 Front plate 32a, 33a, 4b Small protrusion 33b Inclined line 34 Projection 4 Liner 5 Fixing tool 6 Slide latch 61 Latch piece 62 Inner mounting piece 63 Outer mounting piece 64 Cover piece 65 Screw member 66 Rotation axis α Angle

Claims (6)

[Claims] 1. A) a rear plate 21 having a vertical rectangular shape and the rear plate 2
An upper plate 22 protruding forward and horizontally from the upper end side of
a and an upper member 22 formed by a downward plate 22b perpendicular to the front end of the upper plate 22a, a lower plate 23a projecting forward and horizontally from a lower end side of the rear plate 21 and the lower plate 23
a having a lower member 23 formed by an upward plate 23b in a direction perpendicular to the front end, and a substantially drum-shaped cross-sectional space is formed between a lower edge of the lower plate 22b and an upper edge of the upward plate 23b. B) a vertical rectangular front plate 31;
A rectangular upper plate 32 projecting rearward and horizontally from an upper edge of the front plate 31; a rectangular lower plate 33 projecting rearward and horizontally from a lower edge of the front plate 31; Board 31
Flat projections 34 slightly projecting from the left and right central parts of the
And an inner cover 3 made of an elastic material and formed in a substantially vertical section with the upper edge and the lower edge of the projection 34.
C) The upper plate 32 and the lower plate 33 are pressurized in the vertical direction, the front plate 31 and the projections 34 are bent rearward, and the inner cover 3 is press-fitted from the side of the housing 2 so that the space of the housing 2 is formed. A strike for a slide latch, wherein an upper edge and a lower edge of the projection 34 are fitted to the projection 34. 2. The housing 2 moves from the left side to the right side.
The lower edge of the downward facing plate 22b is formed in an inverted trapezoidal convex shape by a downwardly inclined portion 22c, a flat portion 22d, and an upwardly inclined portion 22e, and the upper edge of the upwardly facing plate 23b is an upwardly inclined portion 23.
c, a flat portion 23c and a downward slope 23e are formed in a trapezoidal convex shape, and the upper edge of the projection 34 of the inner cover 3 is formed in a reverse trapezoidal concave shape by the downward slope 34a, the flat portion 34b and the upward slope 34c. The strike for a slide latch according to claim 1, wherein the lower edge of the protrusion (34) is formed in a trapezoidal concave shape by an upwardly inclined portion (34d), a flat portion (34e), and a downwardly inclined portion (34f). 3. The angle between the inclined portion 22c and the inclined portion 23c of the downward plate 22b and the angle between the inclined portion 22e and the inclined portion 23e have the same value. Strike for slide latch as described. 4. The left and right widths of the rear plate 21 of the housing 2 are smaller than the left and right widths of the upper plate 22a and the lower plate 23a, and the rear plate 21 is moved toward one of the left and right sides of the upper plate 22a and the lower plate 23a. The strike for a slide latch according to claim 1, wherein the strike is fixed. 5. A small projection 32a protrudes from the rear edge of the upper plate 32 of the inner cover 3 and a small projection 33a protrudes from the rear edge of the lower plate 33. The small projection 32a is formed at the corner of the rear plate 21 of the housing 2.
The strike for slide latch according to any one of claims 1 to 4, characterized in that a stop hole (21c) which can be inserted is formed corresponding to each of said slide holes (33a) and (33a). 6. The strike for a slide latch according to claim 1, wherein a corner of the lower plate 33 of the inner cover 3 is cut off.