JPH0678698B2 - Sliding door catch device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door catching device used for entrance sashes and the like.

[0002]

2. Description of the Related Art In entrance sashes, window sashes and the like incorporated in general residential buildings, a sliding door type opening / closing mechanism in which a sliding door is slidably mounted in a frame of a sliding door frame is often used. In such a sliding door type opening / closing mechanism, if the sliding door is vigorously collided with the sliding door frame when the sliding door is slid and closed, the sliding door may return in the opening direction due to a reaction force received from the sliding door frame and may stop in a half-open state. is there. For this reason, unless the sliding door is carefully closed, a gap is created between the sliding door and the sliding door frame, which causes inconvenience that cold air enters through the gap during winter and pests enter through the gap during summer.

[0003]

Therefore, in order to prevent the above-mentioned inconvenience associated with the half-open state of the sliding door, for example, the lower side member of the sliding door frame is inclined, or the weight of the weight that moves up and down is laterally passed through the strings and pulleys. Conventionally, means for constantly urging the sliding door toward its closing side by converting the direction and transmitting it to the sliding door has been adopted.

However, if the sliding door is always biased to the closing side, if it is desired to stop the sliding door in a half-open state to take in outside air, a contradiction arises in that a new sliding door stopper must be provided. At the same time, in particular, the means for inclining the lower side member of the sliding door frame has a drawback that it cannot be used for an existing window frame or the like that does not have such means. On the other hand, a receiving member having a pair of upper and lower nipping rollers biased toward each other is attached to a sliding door frame, and a base end portion of an inserting / removing member whose tip portion is inserted / removed between the nipping rollers is attached to the sliding door. It is conceivable that the sliding rollers are fitted into the fitting recesses provided on the upper and lower sides of the tip of the insertion / removal member so that the sliding door can be caught by the sliding door frame when the sliding door is closed.

However, if an attempt is made to catch the sliding door simply by fitting the nipping roller and the fitting recess, a similar force is required to engage and disengage the insertion / removal member and the receiving member. If the biasing force of the nip roller is increased in order to open the sliding door, an unreasonable force is required. In view of such circumstances, the present invention can be easily attached to an existing entrance sash or the like,
An object of the present invention is to provide a catching device for a sliding door that can surely catch the sliding door on the sliding door frame and release the catch with less force.

[0006]

[Means for Solving the Problems] In order to achieve the above object,
The present invention has taken the following technical means. That is, according to the first aspect of the invention, the receiving member 4 having the pair of upper and lower nipping rollers 14 urged toward each other is attached to the sliding door frame 2, and the tip end portion is inserted and removed between the nipping rollers 14. The base end of the insertion / removal member 7 is attached to the sliding door 5, and the nipping roller 14 is fitted into the fitting recesses 42 provided on the upper and lower ends of the insertion / removal member 7 so that the sliding door 5 can be closed at that time. A catching device for a sliding door, wherein a sliding door (5) is caught by the sliding door frame (2), and a pivot shaft (15) of the sandwiching roller (14) is provided in the receiving member (4).
A guide groove 16 is formed to guide the end portion in a vertically movable manner, and the guide groove 16 has a relief portion 26 that is inclined in the anti-biasing direction of the nip roller 14 as it goes in the detaching direction of the inserting / removing member 7. It is characterized by having.

The invention according to claim 2 is that the insertion / removal member 7
The distal end portion of the insertion / removal member is configured to be retractable in the insertion / removal direction, and the distal end portion of the insertion / removal member 7 is urged toward the proximal end portion side. . Further, the invention according to claim 3 is characterized in that the receiving member 4 is provided with an urging means 13 capable of adjusting the urging force of the nipping roller 14.

[0008]

As shown in FIGS. 6 to 8, when the sliding door 5 is closed and the tip of the insertion / removal member 7 is inserted between the nipping rollers 14, each nipping roller 14 is fitted into the fitting recess 42 of the insertion / removal member 7. In this case, the sliding door 5 is caught by the sliding door frame 2 side. Since the guide groove 16 that guides the pivot 14 of the nip roller 14 has the escape portion 26, the impact force transmitted from the sliding door frame 2 when the sliding door 5 is closed is as shown in FIG. Therefore, even when the sliding door 5 is strongly closed, it can be reliably caught by the sliding door frame 2 side.

On the other hand, when the sliding door 5 in the catching state is opened, the nipping roller 14 moves along the escape portion 26 of the guide groove 16 while rotating, as shown in FIG. 14 can be released from the fitting recess 42. Also,
In the invention according to claim 2, since the tip end portion (engagement head portion 36) of the insertion / removal member 7 is capable of retracting and is biased toward the base end portion side, when the sliding door 5 is closed, the sliding door 5 receives it. The impact force is also alleviated by the insertion / removal member 7.

Further, in the invention according to claim 3, the urging means
By adjusting 13, the biasing force of the nip roller 14 can be changed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 to 10, reference numeral 1 denotes a catching device for a sliding door adopted in the present embodiment. The catching device 1 includes a receiving member 4 attached to an upper portion of a pillar member 3 of a sliding door frame 2 and a sliding door 5. The vertical member 6 is provided with an insertion / removal member 7 attached to the upper part.

The receiving member 4 is provided with a metal base 8 having a substantially vertically long rectangular parallelepiped shape and a metal plate-like lid 9 for covering the back surface of the base 8, and the base 8 has a vertically long inside. The housing portion 10 is formed, and the insertion holes 11 of the insertion / removal member 7 are formed on both left and right sides of the base 8. Reference numeral 12 is a screw hole for screwing the receiving member 4 to the sliding door frame 2. In the housing portion 10 of the base 8, a pair of upper and lower nipping rollers 14 that are biased via the biasing means 13 toward each other are installed.

The nipping roller 14 is rotatably supported via a pivot 15 whose axial center is oriented in the thickness direction of the base 8 (the penetrating direction of FIG. 1), and both ends of the pivot 15 are supported. The portion is fitted in a vertically elongated guide groove 16 recessed in the bottom surface of the accommodating portion 10 and the back surface of the lid body 9 so as to be vertically movable, whereby each nipping roller 14 is disposed inside the accommodating portion 10 of the receiving member 4. It is mounted so that it can rotate and move up and down.

The biasing means 13 has a flange portion 17 on the opening side.
A bottomed holding cylinder (18) having a bottom and a pressing pin (21) having a pressing head (20) having a larger diameter than this at one end of a shaft portion (19) are provided. The holding cylinder 18 is screwed to the upper wall portion 22 and the lower wall portion 23 of the base 8 so that the flange portion 17 of the holding cylinder 18 faces the accommodation portion 10 side of the base 8, and in the holding cylinder 18, The shaft portion 19 of the pressing pin 21 is inserted so as to be able to move up and down in the vertical direction, and a compression spring 24 is interposed between the flange portion 17 of the holding cylinder 18 and the pressing head portion 20 of the pressing pin 21.

Therefore, due to the elastic force of the compression spring 24,
The pressing pin 21 is constantly pressed against the side surface of the nipping roller 14, and the nipping rollers 14 are urged toward each other. In addition, on the outer surface of the bottom of the holding cylinder 18, the engaging portion of the driver
25 is formed, and when the tip of the driver is inserted into the engaging portion 25 and the holding cylinder 18 is rotated, the base 8 of the holding cylinder 18 is formed.
Position relative to the push pin 21
It is possible to finely adjust the pressing force applied to the nip roller 14 by the.

In this embodiment, the guide groove 16 is
In addition to vertically guiding the pivot 15, the width dimension of the pivot 15 is set to be larger than the diameter of the pivot 15, and the insertion / removal member 7 in the catch state shown in FIG. 1 moves in the removal direction (left side of FIG. 1). It has an escape portion 26 that inclines in the opposite biasing direction of the nip roller 14 as it goes. The sandwiching roller
14 is formed by cutting four locations on the circumferential side surface of a thick-walled cylindrical body made of metal into a flat surface, and four flat surface portions 27 are formed on the circumferential side surface.
And curved surface portions 28 are alternately provided in the circumferential direction.

The insertion / removal member 7 is composed of a metal main body member 29 forming the base end portion and the intermediate portion of the insertion / removal member 7 and a metal protrusion / retraction member 30 forming the tip end portion of the insertion / removal member 7. It has and. The body member 29 has screw holes in the center on both sides of the base end.
It has a mounting stay 32 having 31 and is screwed to the upper side surface of the vertical member 6 of the sliding door 5 via this mounting stay 32.

Further, inside the main body member 29, a stepped hole 33 is formed which penetrates in the axial direction of the main body member 29 and has a large diameter at the base end side. Support plate
34 are projected. The push-out member 30 is provided with an engaging head portion 36 integrally with the tip of the rod portion 35, and by inserting the rod portion 35 into the stepped hole 33, the push-out member 30 is pushed and pulled in the axial direction with respect to the main body member 29. In addition to being free, in the center of the engaging head 36,
The rod portion 35 is provided with a long hole 37 that is long in the axial direction.

The engaging head portion 36 is interposed between the support plates 34 of the main body member 29, and the restriction pin 38 provided between the support plates 34 is inserted into the elongated hole 37, whereby Retreat member
I am trying to regulate the range of entry and exit of 30. On the other hand, a lock nut 39 is screwed on the proximal end side of the rod portion 35, and a compression spring 40 is interposed between the lock nut 39 and the stepped portion of the stepped hole 33, whereby The engagement head 36 is constantly biased toward the base end of the main body member 29.

The base of the engaging head 36 and the main body member 29
A curved portion 41 that fits the curved surface portion 28 of the nip roller 14 is formed at the tip end portion of the insertion / removal member.
Fitting recesses 42 into which the peripheral side portions of the nip roller 14 are fitted are formed on the upper and lower sides of the leading end of 7. The insertion / removal member 7 is arranged so that the axis thereof is located exactly in the center between the sandwiching rollers 14, so that when the sliding door 5 is slid with respect to the sliding door frame 2, The engaging head 36 is adapted to be inserted into and removed from the nipping rollers 14.

Next, the operation of the catch device 1 according to the above embodiment will be described with reference to FIGS. First, as shown in FIG. 6, the sliding door 5 having the insertion / removal member 7 is attached to the sliding door frame 2
When it is slid inside and closed, the engaging head 36 of the inserting / removing member 7 is inserted between the holding rollers 14 of the receiving member 4,
After the state where the holding roller 14 is forcibly expanded by the holding roller 14 (FIG. 7), the holding roller 14 is fitted into the fitting recess 42 of the insertion / removal member 7, as shown in FIG.

At this time, when the sliding door 5 strongly collides with the sliding door frame 2, the sliding door 5 receives a strong and instantaneous impact force from the sliding door frame 2, but in this embodiment, a guide for guiding the pivot 15 is used. Since the groove 16 has the escape portion 26, and the engaging head portion 36 of the insertion / removal member 7 is also capable of retracting and retracting via the compression spring 40,
The impact force is dispersed in each direction shown by the arrow in FIG. 8 and is absorbed by the compression spring 24 on the side of the nip roller 14 and the compression spring 40 of the insertion / removal member 7, whereby the sliding door 5 is compared. The sliding door 5 is surely caught by the sliding door frame 2 even when strongly closed.

Next, when trying to open the sliding door 5 from the catching state of the sliding door 5 shown in FIG. 8, as shown in FIG. 9, the nipping roller 14 rotates and the escape portion 26 of the guide groove 16 rotates.
Since it moves along the direction, the nipping roller 14 can be easily released from the fitting recess 42 with almost the same force as when opening the normal sliding door 5. That is, the catch device 1 according to the present embodiment is a sliding door.
With respect to the impact force when 5 is strongly closed, this can be relaxed by the compression springs 24 and 40 to reliably catch the sliding door 5, and the static force when opening the sliding door 5 in the catch state. On the other hand, the insertion / removal member 7 can be easily removed by rolling the holding roller 14 and moving it in the direction of the escape portion 26.

Although one embodiment of the present invention has been described above, the present invention is not limited to this. For example, as the outer peripheral shape of the nip roller 14, the other one shown in FIG. 11 can be adopted. That is, the sandwiching roller 14 of FIG. 11 (a) has three flat surface portions 27 and three curved surface portions 28 alternately in the circumferential direction,
The nip roller 14 shown in FIG. 11 (b) has a substantially octagonal shape, and
The nip roller 14 in (c) has a circular shape.

Further, as shown in FIGS. 12 and 13, a bellows-like cover body 43 may be provided around the insertion / removal member 7 to prevent dust and dirt from entering. Further, the receiving member 4
The attachment positions of the insertion / removal member 7 and the insertion / removal member 7 are not limited to the above-mentioned embodiment, as long as they can engage with each other when the sliding door 5 is closed.

[0026]

As described above, according to the present invention,
The catch device 1 can be easily attached to an existing entrance sash, etc., and even if the sliding door 5 is strongly closed, it can be reliably caught by the sliding door frame 2 and a small static force is applied.
Since the catch state of can be released, it is possible to reliably prevent the sliding door 5 from being half-opened by the same operation as the normal opening / closing operation of the sliding door 5.

According to the invention of claim 2, the sliding door
Since the impact force at the time of closing 5 is alleviated by the insertion / removal member 7, the catching force of the sliding door 5 can be further improved. Furthermore, according to the third aspect of the invention, since the urging force of the nipping roller 14 can be changed, even if the nipping roller 14 or the fitting recess 42 is worn, the urging force is strengthened to ensure a sufficient catching action. Therefore, the durability of the catch device 1 can be improved.

[Brief description of drawings]

FIG. 1 is a front sectional view of a catch device for a sliding door.

FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 with an insertion / removal member removed.

3 is a cross-sectional view taken along line BB of FIG. 1 with the insertion / removal member removed.

FIG. 4 is a plan sectional view of an insertion / removal member.

[FIG. 5] (a) is a front view of the base, (b) is a left side view of the same, (c)
Is a right side view of the same.

FIG. 6 is an explanatory view of the action of the catch device.

FIG. 7 is an explanatory view of the same operation.

FIG. 8 is an explanatory view of the same operation.

FIG. 9 is an explanatory view of the same operation.

FIG. 10 is a front view of a sliding door and a sliding door frame.

FIG. 11 is a front view of another holding roller.

FIG. 12 is a front view of another catch device.

FIG. 13 is a left side view of the same.

[Explanation of symbols]

 1 Catch device 2 Sliding door frame 4 Receiving member 5 Sliding door 7 Inserting / removing member 13 Energizing means 14 Clamping roller 15 Axis 16 Guide groove 26 Relief section 42 Fitting concave section

Claims (3)

[Claims] 1. A receiving member (4) having a pair of upper and lower nipping rollers (14) biased toward each other is attached to a sliding door frame (2), and a front end portion is inserted between the nipping rollers (14). Attach the base end of the insertion / removal member (7) to be removed to the sliding door (5),
By fitting the sandwiching roller (14) into the fitting recesses (42) provided on the upper and lower sides of the tip of the sliding door (5), the sliding door (5) is closed when the sliding door (5) is closed. ) Is a catching device for a sliding door, and a guide groove (16) for guiding the end of the pivot shaft (15) of the nipping roller (14) in the receiving member (4) so as to be vertically movable. The guide groove (16) has an escape portion (26) that is inclined in the anti-biasing direction of the sandwiching roller (14) as it goes in the detaching direction of the inserting / removing member (7). A catching device for sliding doors. 2. A tip end portion of the insertion / removal member (7) is movable in the insertion / removal direction with respect to a base end portion of the insertion / removal member, and the tip end portion of the insertion / removal member (7) is the base end portion. The catching device for the sliding door according to claim 1, wherein the catching device is biased toward the side. 3. The catching device for a sliding door according to claim 1, wherein the receiving member (4) includes an urging means (13) capable of adjusting the urging force of the holding roller (14). .