JP3409979B2 - sash - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sash whose door is opened and closed by a hinge or the like, and more particularly to an improved sash having a mechanism for tightening the door to a window frame when the door is closed and locked.

[0002]

2. Description of the Related Art Conventionally, a sash of this type is provided with a lock mechanism such as a cam latch which supports the shoji in a freely openable and closable manner by a hinge or the like and locks the shoji to prevent it from opening after closing. In the case of a large sash, a tightening mechanism for tightening the shoji on the top and bottom of the lock handle of the lock mechanism may be further added in association with the lock handle.

FIG. 8 is an exaggerated view of how the shoji screen of a sash is deformed by the pressure difference between inside and outside of the building. In a sash used for a window of a building, it is negatively affected by the strong wind passing between the buildings. A pressure is generated, and the shoji 1 is subjected to an outward pulling force. As a result, one of the vertical frames of the shoji 1 is held by the hinge, and the central portion of the other vertical frame is fixed to the window frame by the cam latch handle 2.
As shown by the chain line in the figure, the upper and lower horizontal frames are deformed so as to be largely warped away from the window frame to the outside.

The tightening mechanism is used together with a lock mechanism such as the cam latch handle 2 in order to prevent such deformation of the shoji, and is provided above and below the vertical frame on the side where the lock mechanism is mounted. It is like this.

In the conventional tightening mechanism, the rotation of the lock handle is linearly moved by a transmission mechanism such as a rack and pinion so that the interlocking rod is linked with the tightening mechanism so that the lock handle is locked and unlocked. By converting and engaging and disengaging the roller etc. provided at the tip of this interlocking rod with the lock receiver attached to the window frame side,
You can unlock it.

[0006]

However, the conventional tightening mechanism requires a transmission mechanism such as a rack and pinion in order to interlock with the lock handle, and this transmission mechanism occupies a large installation space and the number of parts is also large. There is a drawback that the cost increases as the number increases.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, and to eliminate the need for a transmission mechanism for directly transmitting the movement of the lock handle of the lock mechanism for locking the shoji, while allowing the shoji to interlock with opening and closing. It is to provide a sash having a tightening device that can be tightened and released.

[0008]

In order to solve the above-mentioned problems, the present invention has a lock mechanism for fixing to the window frame a frame on the opening side of a shoji which is opened and closed around a spindle. A sash provided with a tightening device for constraining the vicinity of a side end portion to a window frame, wherein the tightening device includes at least one pair of engaging portions provided on the shoji screen and the window frame, and the engaging portion includes: It has an engaging concave portion provided on one of the shoji screen and the window frame and an engaging convex portion provided on the other, and the engaging convex portion is guided and engaged with the engaging concave portion in conjunction with the door opening operation. Thus, the movement in the door opening direction is prevented, and the engagement is released in conjunction with the door opening operation.

In order to solve the above-mentioned problems, the present invention has a lock mechanism for fixing to the window frame the open side frame of the shoji which is opened and closed about the support shaft, and the vicinity of the open side end portion. Is a sash provided with a tightening device for restraining the window frame to the window frame, wherein the tightening device includes an engaging portion provided on the opening side and a guide portion separated from the engaging portion by a predetermined distance in the door body center direction. The engaging portion is composed of at least two sets, and the engaging portion has an engaging concave portion provided on one of the window frame and the shoji screen and an engaging convex portion provided on the other, and the guide portion interlocks with the door closing operation. The guide operation is performed, and the engaging convex portion of the engaging portion engages with the engaging concave portion in conjunction with the guiding operation, and the movement in the door opening direction is blocked.

According to the above-described structure of the present invention, the tightening device is operated in association with the closing operation of the shoji screen, and the lock mechanism is further activated so that the engaged state of the tightening device is maintained.
Therefore, even if a pressure difference occurs between the inside and outside of the sash, and the force of pulling the shoji from the indoor side to the outdoor side acts, the shoji is firmly restrained so as to prevent movement in the door opening direction and prevents deformation. it can.

As described above, in the tightening device of the present invention, the tightening device is linked to the closing and opening operations of the door without being connected to the lock mechanism through the mechanical transmission mechanism. In addition, the number of parts can be significantly reduced.

[0012]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the sash according to the present invention will be described below with reference to the accompanying drawings. Figure 1
[Fig. 3] shows an appearance of the sash embodying the present invention as seen from the indoor side. This sash is an outside window that opens the shoji screen toward the outdoor side. In FIG. 1, the front side of the drawing is the indoor side.

The window frame includes left and right vertical frames 10, 11, an upper frame 12,
The lower frame 13 is joined to a four-sided set, and the shoji (the frame is not shown in the figure behind the window frame) is supported by hinges 14a and 14b as a support shaft. This hinge 1
A side opposite to the side fixed to the vertical frame 11 by 4a and 14b is opened, and a cam latch type locking mechanism 15 is provided.

In the case of this sash of the outward opening type, a set of tightening devices 22, 2 for restraining the locking mechanism 15 at the upper and lower sides of the sash in the middle and the frame on the opening side when the shoji is closed are held by the vertical frame 10.
Two are provided. FIG. 2 shows the configuration of the lock mechanism 15, and FIG. 3 shows the locked state of the lock mechanism 15. 1
Reference numeral 6 denotes a lock handle, and the lock handle 16 is rotatably attached via a support member 18 fixed to a vertical frame 17 of the shoji screen.
A latch portion 19 (see FIG. 3) is provided integrally with 6a. The seat 20 with which the latch portion 19 meshes is the vertical frame 1
It is fixed to 0, and the receiving seat 20 is formed with a receiving surface 21 having an inclination with which the latch portion 19 slides as the lock handle 16 rotates. As shown in FIG. 3, the receiving surface 21 is inclined so that the wall thickness gradually increases toward the lock position, and the lock handle 16 is extended to the locking position.
When is turned, the latch part is engaged with each other strongly.

Next, the tightening device 22 will be described. The same tightening device 22 is provided above and below the above-mentioned lock mechanism 15, and FIG. 4 shows the upper tightening device 22.

In this embodiment, a latch holder 25 for supporting a latch member 24 movably in the longitudinal direction of the vertical frame 17 is attached to the vertical frame 17 of the shoji screen, and a latch receiving member 26 is fixed to the vertical frame 10. ing. Latch holder 25
Is an elongated rectangular plate-like metal fitting, and a recess 27 for accommodating the latch member 24 is formed inside. The recess 27 has a play corresponding to the stroke S in the length of the latch member 24.

The latch member 24 is provided at both ends thereof with pins 28 and 29 as engaging projections that form an engaging portion. The pins 28 and 29 are cut on the outer surface of the latch holder 25. It is designed to project outward from the long groove 30 that is cut out. In this case, one end, that is, the pin 29 on the side closer to the lock mechanism 15 is, together with the cam groove 32 as an engaging recess provided in one end of the latch receiving member,
A cam mechanism for linearly moving the latch member is configured. The cam groove 32 has a width corresponding to the thickness of the pin 29, and the latch member 24 should be gradually moved only to the lock mechanism 15 side as the pin 29 comes into the depth of the groove. It has a cam surface 33 that is inclined so that

On the other hand, on the other end of the latch receiving member 26, that is, on the side away from the lock mechanism 15, there is provided a latch receiving seat 34 with which the pin 28 as an engaging projection of the tip of the latch member 24 engages. This latch seat 34 is provided,
An engaging recess is formed by the receiving surface 35 that is inclined so as to prevent the sliding door from opening.

Next, FIG. 5 is a diagram sequentially showing the operation of the tightening device 22 when the shoji screen is closed. In this case, the position shown in FIG.
It corresponds to (a), and the position of FIG. 3 corresponds to FIG. 5 (e). When the shoji starts closing, the pin 29 reaches a position facing the entrance of the cam groove 32 (FIG. 5B), and further, the pin 29 enters the cam groove 32 while sliding on the cam surface 33 (FIG. 5). (C), (d)). As a result, the latch member 24 is pushed up in the direction away from the lock mechanism 15. (In the case of the other latch member 24 provided on the lower side of the lock mechanism 15, it is pushed down.) Then, when the lock mechanism 15 is finally locked as shown in FIG. Reach the position shown.
At this position, the lock mechanism 15 is in the tightened state, and the position of the latch member 24 is maintained without changing the relative positions of the pin 29 and the cam groove 32 that form the engaging protrusion and the engaging recess. The pin 28 is restricted by the receiving surface 35. Therefore, even if a pressure difference is generated between the inside and the outside of the sash, and the force of pulling the shoji from the inside to the outside acts, the tightening device 2 provided above and below
The shoji is strongly restrained by the two and twenty-two.

In order to open the tightening device 22, the locking mechanism 15 is unlocked, and the latch member 24 becomes free. Therefore, as the shoji opens, it returns to its original position.
It can be linked with the opening of the shoji.

Next, another embodiment of the present invention will be described with reference to FIG.

In this embodiment, instead of the pin 28 of the closing device 16 of FIG. 4, a wedge member 40 that is more firmly engaged is provided as an engaging protrusion that engages with the latch seat 34. is there. FIG. 6 (a) shows the position where the shoji starts to close,
FIG. 6B shows the position when the lock mechanism 15 is locked. In the second embodiment, the other parts themselves are the first
This is the same as the embodiment, and its description is omitted.

Next, an embodiment of the invention described in claim 2 will be described with reference to FIG. In this embodiment, the latch holder 43 that accommodates the latch member 42 is fixed to the lower frame 10 side, and the latch receiving member 44 is used as the vertical frame 1 of the shoji.
It is fixed on the 7 side.

As the cam mechanism which constitutes the guide portion for guiding the engaging portion, a cam disc 45 rotatably supported by the latch holder 43 is used, and the cam disc 45 is provided with a pin 46 through the pin 46. It is connected to one end of the latch member 42. On the other hand, at the tip of the latch member 42, a wedge surface 47 is formed as an engaging projection of the engaging portion, and the wedge surface 47 is formed as an engaging recess by the inclined receiving surface 48 of the latch receiving member 44. Is adapted to engage with.

Here, FIG. 7A shows the position where the shoji screen starts to be closed, and FIG. 7B shows the position when the lock mechanism 15 is locked. In FIG. 7 (a), when the shoji shuts out, the side surface of the vertical frame 17 of the shoji comes into contact with the cam board 45,
Rotate this. The cam board 45 guides the latch member 42 to be pushed up in the direction away from the lock mechanism 15 (in the case of the other tightening device 16 on the lower side of the lock mechanism 15, it is pushed down). Further, the latch receiving member 44 moves relatively smoothly so as to cross the tip end portion of the latch member 42, and finally the positional relationship between the two is as shown in FIG. 7B.

At this position, the lock mechanism 15 works,
Since the cam board 45 is fixed, the position of the latch member 42 is held, so that when a force acts in the opening direction of the shoji, the latch receiving member 44 with which the wedge surface 47 of the latch member 42 abuts is opened. Since the movement is restrained, the shoji is firmly clamped so as not to be deformed at a portion away from the lock mechanism 15.

Although the present invention has been described with reference to the embodiments in which the present invention is applied to an outside window, the present invention is applicable to an outside window, an inside window, a sliding window, a vertical sliding window, a protruding window, and a vertical shaft. A rotating window can also be applied.

[0028]

As is apparent from the above description, according to the invention described in claim 1, the tightening device can be tightened by interlocking with the door closing and opening operations without being connected to the lock mechanism for locking the shoji. , Despite being able to open
Since a mechanical transmission mechanism that directly transmits the movement of the lock handle is unnecessary, it does not take up a mounting space, the configuration is simplified, and the number of parts can be reduced.

According to the invention described in claim 2,
Since the engaging convex portion and the engaging concave portion of the engaging portion are guided and engaged by the guide portion, the effect of the invention of claim 1 can be obtained, and in addition to this, more smoothly. Moreover, the shoji screen can be reliably restrained.

[Brief description of drawings]

FIG. 1 is an external view of an embodiment of a sash according to the present invention.

FIG. 2 is a structural explanatory view of a lock mechanism in an unlocked state in the embodiment of the present invention.

FIG. 3 is an explanatory view of a state in which the lock mechanism of FIG. 2 is locked.

FIG. 4 is a cross-sectional view showing the configuration of the tightening device according to the embodiment of the present invention.

FIG. 5 is an explanatory view showing a series of operations of the tightening device in the process of closing the shoji screen.

FIG. 6 is a structural explanatory view of a tightening device according to another embodiment of the present invention.

FIG. 7 is a structural explanatory view of a tightening device according to still another embodiment of the present invention.

FIG. 8 is an explanatory view showing the deformation of the sash due to the pressure difference between the inside and the outside.

[Explanation of symbols]

10, 11 vertical frame 12 Upper frame 13 lower frame 14a, b Hinge 15 Lock mechanism 16 lock handle 19 Latch part 20 seat 22 Tightening device 24 Latch member 25 Latch holder 26 Latch receiving member 28, 29 pin (engagement protrusion) 32 Cam groove (engagement recess) 33 Cam surface 34 Latch seat 35 Receiving surface (engaging recess) 45 Cam board (guide)

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) E05F 7/04 E05C 21/02 E06B 3/36

Claims (2)

(57) [Claims] 1. A sash having a lock mechanism for fixing to a window frame a frame on the open side of a shoji that is opened and closed around a support shaft, and a tightening device for restraining the vicinity of the open side end to the window frame. The tightening device includes at least one set of engaging portions provided on the shoji screen and the window frame, respectively, and the engaging portion includes an engaging concave portion provided on one of the shoji screen and the window frame, and on the other side. By having the engaging convex portion provided and guiding and engaging the engaging convex portion with the engaging concave portion in association with the door opening operation, the movement in the door opening direction is blocked and the door opening operation is performed. A sash characterized in that the engagement is disengaged in conjunction with each other. 2. A sash having a lock mechanism for fixing to the window frame a frame on the open side of a shoji which is opened and closed about a support shaft, and a tightening device for constraining the vicinity of the open end to the window frame. Then, the tightening device is composed of at least two sets of an engagement portion provided on the opening side and a guide portion separated from the engagement portion in the door body center direction by a predetermined distance, and the engagement portion is It has an engaging concave portion provided on one of the window frame and the shoji screen, and an engaging convex portion provided on the other, and the guide portion is guided and operated in conjunction with the door closing operation. The engaging protrusion engages with the engaging recess,
A sash with a feature that movement in the door opening direction is blocked.