JPH043106Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention allows a sliding door with a swinging mechanism, which is configured to be able to be opened and closed as a swinging door, to open and close in the sliding direction as an original sliding door, or when opening and closing as a sliding door. The present invention relates to a locking device for a hinged door that is installed on the sliding door to prevent it from accidentally opening in the swing direction in the swing direction or in the closed position, causing an unexpected situation.

[Conventional Example] A sliding door with a swinging door mechanism equipped with this type of locking device for a swinging door has already been proposed in Japanese Utility Model Application Publication No. 59-8479. According to this, as shown in FIG. 3, a tongue-shaped support 21 is provided horizontally on the hanging frame 10 that is slid together with the sliding door D when the sliding door D is opened and closed in the sliding direction as an original sliding door. When the sliding door D is opened and closed in the swing direction as a hinged door, the locking body 22 gets on and off the support 21, and when the locking body 22 rides on the support 21 and becomes in a superposed state. Elastic body 2 for elastically pressing the locking body 22 against the support body 21
3 constitutes a hinged door locking device 20.

According to this, when the sliding door D is in the closed position as a hinged door, the locking body 22 rides on the support body 21 and is in a superposed state as shown in the figure, and the elastic body 23 is attached to the support body 21. The locking body 22 is engaged with the formed V-groove 211 and elastically pressed against the support body 21.

[Problem that the invention attempts to solve]

However, in the conventional example explained with reference to FIG. 3, since the contact surface 24 between the support body 21 and the locking body 22 is flat, when the sliding door D receives an unexpected external force, the locking body 22 moves from the support body. 21, and as a result, there is a problem that the sliding door D may accidentally swing open when the sliding door D is opened and closed as an original sliding door or when it is in an open position or a closed position as a sliding door. This problem can be solved to some extent by the elastic body 23 engaging with the V-groove 211 of the support body 21, but this naturally requires an extra elastic body 23. Become. Furthermore, when the sliding door D is opened and closed in the sliding direction as a normal sliding door, the sliding door D may spring up against the bias of the elastic body 23 due to the cushions, etc., and when the sliding door D vibrates up and down in this way, The elastic body 23 and the support body 21 are easily disengaged from each other, and the locking body 22 is attached to the support body 2.
There was a problem in that sliding door D could sometimes slide open and swing open.

The purpose of this invention is to solve the above-mentioned conventional problems, and the technical problem is to prevent the locking body from easily separating from the support body without providing an elastic body.

[Means for solving problems]

A technical means for solving the above technical problem is that in a sliding door with a hinge mechanism configured such that the sliding door that is opened and closed in the sliding direction is also opened and closed in the swinging direction, a sliding door that is slid integrally with the sliding door is used. A support is provided on the frame, a locking body is provided on the sliding door that gets on and off the support when the sliding door is opened and closed in the swing direction with respect to the hanging frame, and a locking body is provided on the upper surface of the support and a lower surface of the locking body, respectively. The peaks are formed so that when the locking body crosses over the peaks of the support and enters the polymerized state, an inclined surface is formed on the contact surface between the peaks of the support and the locking body, and the above-mentioned The locking body is provided with a protrusion that faces the hanging frame from below and restricts the vertical movement of the sliding door.

[Effect]

According to the above-mentioned technical means, when the locking body climbs over the support and enters the superposed state, the force that would cause the locking body to overcome the slope provided on the contact surface between the two is not applied to the locking body. As long as the locking body does not slip off the support, the force that the locking body can overcome in that case is relatively large even if the angle of inclination of the slope is small because the sliding door's own weight is acting downward. becomes. Therefore, without using auxiliary parts such as elastic bodies, the sliding door will not swing open accidentally. In addition, even if the sliding door vibrates in the vertical direction or the locking body springs up from the support due to the vibration, the protrusion provided on the locking body will hit the hanging frame and This prevents the locking body from jumping up over the slope of the contact surface with the support. Therefore, the engagement between the locking body and the support body will not be released due to vertical vibration of the sliding door, and from this point of view, the sliding door will not swing open accidentally.

〔Example〕

The hinged door locking device 20 illustrated in FIG. A protrusion 25 is provided integrally with the stopper 22. The hanging frame 10 and the sliding door D are connected by a swing door mechanism 30 having a swing center shaft 31. The hanging frame body 10 is equipped with running wheels 40, 40, and these running wheels 40, 4
0 is a rail 50 constructed across the entire width of the frontage
It is configured to run on top. When the sliding door D is opened and closed in the sliding direction as a normal sliding door, it is sufficient to operate the door wheel mechanism (not shown) in the forward or reverse direction.
0 and 40 run on the rails 50, and the hanging frame 10 is slid together with the sliding door D, so that the sliding door D is slidably opened and closed between the closed position and the open position of the frontage.

Next, the support body 21 is provided with peaks 211 and valleys 212 on its upper surface, as shown in detail in FIG. Further, the locking body 22 also includes a peak portion 221 and a valley portion 222 on its lower surface. In the state where the locking body 22 has climbed over the support body 21, the peak portion 2 of the locking body 22 is
21 and the trough 222 are the trough 212 of the support body 21
and the peak portions 212, respectively. Therefore, the contact surface 24 has an inclined surface 24 that becomes higher as it approaches the tip of the support 21.
1 is formed, and this inclined surface 241 allows the support body 2
1 and the locking body 22 engage with each other.

Here, the inclination angle of the inclined surface 241 is θ, the weight of the sliding door D is W: the friction coefficient of the inclined surface 241 is μ
Then, μ=tan ρ...(1) However, ρ is the friction angle. Also, if the force required for the locking body 22 to overcome the slope 241 is F, then the force balance equation Fcos θ=μ(Wcos θ+Fsin θ) +Wsin θ...(2) holds true.

Therefore, F=W・μcos θ+sin θ／cos θ−μsin θ……(3
) From equation (1) above, F=W・tan ρ・cos θ+sin θ／cos θ−tan ρ・
sin θ = W・tan ρ・tan θ/1−tan ρ・tan θ = W・tan (ρ+θ) ...(4) Therefore, in order to open the sliding door D in the swing direction like a swing door, use (4) above. A force greater than F expressed by the formula is required. In other words, this means that the slope 24
1, a locking force of F can be obtained,
This is larger than when the contact surface between the support body 21 and the locking body 22 is flat (see FIG. 3).

On the other hand, the protrusion 25 is integrally formed with the locking body 22 in a stepped shape, as shown in detail in FIG.
is facing from below. And the overhang part 1
The gap d1 with respect to the first protrusion 25 is set by the following equation.

d ₁ > T・sin θ d ₂ > d ₁ Therefore, even if the locking body 22 springs up from the support body 21 due to the vertical vibration of the sliding door D (see Fig. 1), the width of the springing up is equal to that of the protrusion. 25 hits the protruding portion 11, the locking body 22 is restricted to d1 at the maximum, and the locking body 22 does not spring up to the extent that it climbs over the slope 241.

Therefore, even if the sliding door D vibrates in the swing direction and the vertical direction, the inclined surface 241 and the protrusion 25
This action prevents the locking body 22 from slipping off the support body 21, and prevents the sliding door D from accidentally opening in the swing direction.

In addition, the above-mentioned protrusion may be provided on the locking body 22 so as to face the support 21 from below, and in that case, the springing width of the locking body 22 will be determined by the contact of the protrusion with the support 21. Regulated.

Next, when the sliding door D is to be opened in the swinging direction as a swinging door, the sliding door D is pushed out of the frontage using the swing center axis 31 of the swinging door mechanism 30 as a fulcrum. In this case, it is natural to apply a force greater than the above-mentioned force F, and if this is done, the locking body 2
Since the protrusion 25 comes out from below the overhang 11 by the time the locking body 2 climbs over the peak 211 on the upper surface of the support 21, the locking body 22 climbs over the peak 211 and is pulled down from the support 21. , the engagement between the two is released and the sliding door D is opened in the swing direction as a hinged door. On the other hand, when the sliding door D is swung from the open position as a hinged door to close, the slope of the peak 211 of the support 21 and the slope of the peak 221 of the locking body 22 slide, so that the locking body 22 easily climbs over the peak 212 of the support 21 and the two are engaged.

[Effect of idea]

According to the locking device for a hinged door of this invention, the locking force between the supporting body and the locking body is increased by the action of the inclined surface caused by the engagement of each peak provided on the contact surface between the support body and the locking body. It is now possible to easily obtain a locking force sufficient to prevent the sliding door from accidentally swinging open without using auxiliary parts such as elastic bodies that have been conventionally used. In addition, because the vibration amplitude of the sliding door in the vertical direction is restricted to a width smaller than the height difference of the above-mentioned slope due to the action of the protrusion, the locking body will not slip off from the support body due to such vibration. It disappears. Therefore, even if the sliding door receives an unexpected impact force, an excellent effect can be obtained in that the sliding door will not swing open.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing a locking device for a swinging door according to an embodiment of this invention, Fig. 2 is a side view showing an enlarged view of its main parts, and Fig. 3 is a side view showing a conventional locking device for a swinging door. It is a diagram. 10... hanging frame body, 20... locking device for hinged door,
21... Support body, 22... Locking body, 211, 22
1... Peak portion, 24... Contact surface, 241... Inclined surface of contact surface, 25... Projection, 30... Swinging door mechanism,
D...Sliding door.

Claims (1)

[Scope of Claim for Utility Model Registration] In a sliding door with a hinge mechanism, in which a sliding door that is opened and closed in the sliding direction is also opened and closed in the swinging direction, a support is attached to a hanging frame that slides together with the sliding door. The sliding door is provided with a locking body that gets on and off the support when the sliding door is opened and closed in a swing direction with respect to the hanging frame, and a crest is formed on the upper surface of the support and the lower surface of the locking body, respectively. When the locking body crosses over the peaks of the support and enters the polymerized state, an inclined surface is formed on the contact surface between the support and the peaks of the locking body, and the hanging frame is fitted from below. A locking device for a sliding door with a swinging door mechanism, characterized in that a locking body is provided with opposing protrusions that restrict vertical movement of the sliding door.