JPH0740966U - Sliding door braking device - Google Patents

Abstract

(57) [Summary] [Purpose] The sliding door rebounds into a half-opened state, while making use of the convenient surface that allows the sliding door to be opened and closed smoothly with a slight force by applying the brake just before the sliding door closes. (EN) Provided is a sliding door brake device capable of preventing the door from naturally opening when closed. [Structure] The first contact part that elastically contacts the upper end surface of the upper frame when the sliding door moves to the pillar, on the upper wall surface of the pillar side of the ditch of the Kamoi where the upper frame of the sliding door with a door fits. It is characterized in that a leaf spring provided with front and rear second contact portions which are inverted when the upper end surface of the upper frame contacts the contact portion and elastically contact the upper end surface of the upper frame is attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sliding door braking device that applies a brake just before the sliding door is closed to damp the inertial force of the sliding door.

[0002]

[Prior art and its problems]

 Generally, there are sliding doors such as shoji doors, sliding doors, etc. as partitioning doors, but sliding doors with door rollers are very slippery and convenient because they can be opened and closed with a small amount of force, but the sliding is too good. When it was closed vigorously, there was a problem that the door bounced back into a half-opened state, and if the sill was slanted due to poor standing, it would open naturally. For this reason, a method of applying resistance to the sliding door itself with a leaf spring or the like to prevent slippage was considered, but with this method, the effect of smoothing the opening and closing of the sliding door using a folding door wheel is diminished. was there.

[0003]

[The purpose of the device]

 SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention utilizes a convenient surface that allows the sliding door to be opened and closed smoothly with a small force by applying a brake just before the sliding door is closed. It is an object of the present invention to provide a sliding door brake device capable of preventing a situation where the door is half opened and the door is naturally opened when closed.

[0004]

[Disclosure of device]

 The sliding door braking device according to the present invention elastically contacts the upper wall surface of the pillar side of the groove of the Kamoi with which the upper frame of the sliding door with the door fits, and the upper end surface of the upper frame when the sliding door moves to the pillar side. Install a leaf spring that has a first contact part and a second contact part on the front and back that flips over when the upper end surface of the upper frame contacts the same contact part and elastically contacts the upper end surface of the upper frame. It is a feature.

[0005]

[Function of the device]

 When the sliding door is closed, the first contact part of the leaf spring elastically contacts the upper frame of the sliding door and frictional resistance is applied to the sliding door, so the moving speed of the sliding door is reduced and at the same time the leaf spring reverses and makes a second contact. Since the part also elastically contacts the upper frame of the sliding door, the sliding door is gradually braked and gradually closed, so that the sliding door can be prevented from opening due to its bouncing and spontaneous opening.

[0006]

【Example】

 FIG. 1 is a front view of a sliding door equipped with the brake device of the present invention in a standing state, FIG. 2 is a longitudinal sectional front view of a main part showing a state in which the sliding door is about to be closed, and FIG. 3 is a state in which the sliding door is closed. FIG. 4 is a bottom view of the leaf spring portion, FIG. 5 is a vertical side view of the leaf spring portion, where 1 is a sliding door, 2 is a dwell, 3 is a vertical frame of a fitting, Reference numeral 4 is a leaf spring having a first contact portion 41 and a second contact portion 42 at the front and rear. As shown in FIG. 4, the leaf spring 4 is prevented from coming off by the head portion of the fixed shaft 51 which is crimped to the seat 5 having a U-shaped cross section, and the head portion of the fixed shaft 51 and the horizontal portion of the leaf spring 4 are secured. The horizontal portion 43 is constantly held by the compression coil spring 52 interposed between the horizontal portion 43 and the flat portion of the seat 5. The horizontal portion 43 is held by the compression coil spring 52. It is attached to the upper wall surface of the groove 21 on the column 3 side.

When the sliding door 1 in FIG. 2 is open, there is no second contact portion 42 of the plate panel 4 on the locus of the upper frame 11 of the sliding door 1, so the sliding door 1 should be moved in the closing direction. Also, the upper end of the upper frame 11 passes through the upper end of the upper frame 11 without contacting the second contact part 42, and the side end of the upper frame 11 hits the first contact part 41 on the locus of the upper end of the upper frame 11 of the sliding door 1. Since the first contact portion 41 is pushed up, the leaf spring 4 reverses counterclockwise against the restoring force of the compression coil spring 52 with the fixed shaft 51 portion as a fulcrum, and then the first and second contact portions 41, 42 are rotated. Elastically comes into contact with the upper end surface of the upper frame 11 and brakes the sliding door 1, the inertial force of the sliding door 1 is attenuated and gradually closed, and the force with which the sliding door 1 collides with the pillar 3 is weakened. There is no opening due to the bounce of the door.

[0008]

EFFECTS OF THE INVENTION According to the sliding door braking device of the present invention, the upper side of the sliding door with the door is fitted to the upper wall of the side wall of the ditch of the Kamoi, which is fitted to the upper side of the sliding door when the sliding door moves to the side of the pillar. The first contact part that elastically contacts the upper end surface and the second contact part that flips over when the upper end surface of the upper frame contacts the same contact part and elastically contacts the upper end surface of the upper frame Since the leaf spring is attached, and the brake is applied only when the sliding door is closed, the opening and closing operation of the sliding door is extremely smooth before the brake is applied. Since the inertial force of the sliding door is gradually attenuated by the two-step braking action of the contact part, the sliding door is gently closed, and it is possible to prevent the opening due to the rebound of the door or the natural opening due to the bad standing. .

[Brief description of drawings]

FIG. 1 is a front view of a sliding door equipped with the device of the present invention in a standing state.

FIG. 2 is a vertical sectional front view of an essential part showing a state in which a sliding door is about to be closed.

FIG. 3 is a vertical cross-sectional front view of the relevant part showing a state in which a sliding door is closed.

FIG. 4 is a bottom view of a leaf spring portion.

FIG. 5 is a vertical sectional side view of a leaf spring portion.

[Explanation of symbols]

 1 Sliding door 11 Upper frame 2 Kamoi 21 Groove 3 Column 4 Leaf spring 5 Seat 51 Fixed shaft 52 Compression coil spring

Claims (1)

[Scope of utility model registration request] 1. Elasticity is applied to the upper wall surface of the upper frame 11 when the sliding door 1 is moved to the pillar 3 side, on the upper wall surface of the groove 21 of the kamoi 2 to which the upper frame 11 of the sliding door 1 with a door is fitted. Leaf spring 4 provided with front and rear contact portions 41 that are in contact with each other and contact portions 42 that are inverted when the upper end surface of the upper frame 11 comes into contact with the contact portion 41 and elastically contact with the upper end surface of the upper frame 11. Brake device for sliding doors, characterized in that