KR101129571B1 - Self-closing mechanism with a damper at the front thereof - Google Patents

Abstract

The present invention relates to an automatic closing device having a damper attached to the tip.

The present invention relates to a cylinder having a cover-like housing formed of a body part and a fixed part formed at one end of the body part, a moving member consisting of a linear motion member and a rotational motion member, an elastic spring, and a cylinder having a side protrusion and one side of the cylinder. And a damper including a piston rod protruding from the elastic body. The body portion of the housing includes (1) an elastic spring seating groove in which the body of the elastic spring is located and a first spring binding portion to which one side of the elastic spring is coupled. A seating portion, (2) a first end surface, a second end surface, a first side, and a bottom surface, one side of which is a groove-shaped moving member guide portion, and (3) a damper into which a cylinder of the damper is inserted. And a damper binding portion provided with an insertion hole and a damper side protrusion insertion groove formed in the circumferential direction of the damper insertion hole and formed in a direction opposite to the elastic spring seating portion, wherein the moving member guide portion is provided. The bottom surface is formed with a guide groove consisting of a straight groove and the circular groove.

According to the present invention, the drawer is smoothly automatically closed to the final retracted position by the shock absorbing force of the damper to give the consumer a luxurious feeling.

Bottom mounted slide, Automatic closing device, Elastic spring, Moving member, Damper

Description

Self-closing mechanism with a damper at the front

1 is a perspective view of a slide with an automatic closing device according to the present invention.

Figure 2 is a front perspective view of the automatic closing device according to the present invention.

3 is a rear perspective view of the automatic closing device shown in FIG. 2;

Figure 4 is an exploded perspective view of the automatic closing device shown in FIG.

Figure 5 is a rear perspective view of the housing of the automatic closing device.

6 is a perspective view of a linear motion member of the moving member.

7 is a perspective view of a rotary motion member of the moving member.

8 to 11 is a plan view showing the operating state of the automatic closing device according to the present invention.

The present invention relates to an automatic closing device used for a slide for mounting the bottom, and more particularly to an automatic closing device having a damper attached to the front end thereof.

When a drawer is installed in a desk or a cabinet, a slide is generally attached so that the drawer can be pulled out and pulled in and out of a main body such as a desk or a cabinet, and the slide is a side mounted slide and a drawer attached to the side of the drawer. It is classified as a bottom-mounted slide attached to the bottom of the.

Conventionally, even when a drawer with a slide is pulled in with only a slight amount of force, the drawer is reopened due to a collision repulsive force, or a part of the drawer is left open when the drawer is not inadvertently completely drawn in by a user. There is this.

In order to alleviate this inconvenience, an automatic closing device for automatically closing a slide is described in Korean Patent Application Nos. 2002-7014606, 2005-0047588, etc. However, these are all related to the automatic closing device used for side mounted slides. The automatic closing device which can be used for the bottom mounted slide has not been developed yet.

It is an object of the present invention to provide an automatic closing device which can be used for a bottom mounted slide. Another object of the present invention is to provide an automatic closing device in which a smooth automatic closing is performed during automatic closing of a slide.

In order to achieve the above object, the present invention provides an automatic closing device that is attached to a lower mounting slide including a moving rail having a detachable protrusion formed on one side.

The automatic closing device has a cover-like housing formed of a body part and a fixed part formed at one end of the body part, a moving member consisting of a linear motion member and a rotational motion member, and is formed thinner than a spring body part near both ends of the spring. An elastic spring having a tapered portion, and a damper including a cylinder having a side projection and a piston rod protruding from one side of the cylinder.

At this time, the body portion of the housing (1) the elastic spring seating portion having a first spring binding portion to which the elastic spring seating groove in which the body of the elastic spring is located and one side of the elastic spring is coupled, (2) the first end surface, the second An end surface, a first side, and a bottom surface, the one side of which is a groove-shaped moving member guide portion, and (3) a damper insertion hole into which the cylinder of the damper is inserted and a damper formed in the circumferential direction of the damper insertion hole. A side protrusion insertion groove is provided and includes a damper binding portion formed in a direction opposite to the elastic spring seating portion, and a guide groove formed of a straight groove and a circular groove is formed on the bottom surface of the movable member guide part.

The linear motion member of the moving member is composed of a coupling body inserted into the guide body of the rectangular body portion and the moving member guide portion, one side of the body portion is formed with a rotational movement region is formed a binding hole and the other side The second spring binding portion is coupled to another side of the elastic spring is formed, the rotary member of the moving member is a rotary projection having two straight surfaces and two curved surfaces, the binding inserted into the binding hole of the linear member A protrusion and a hook engaging portion coupled to the detachable protrusion formed on one side of the slide moving rail, the hook locking portion is composed of a first locking jaw and a second locking jaw.

In the automatic closing device according to the present invention, a damper is inserted into a damper insertion hole of a damper binding portion of the housing, and one side of the elastic spring is the first spring binding portion of the body portion of the housing, and the other side is a linear movement member of the moving member. The second spring engaging portion of the engaging member, the moving member is coupled to the moving member guide portion of the housing and operates to automatically close the slide by reciprocating movement along the moving member guide portion.

Preferably, the fixing part formed at one end of the body portion of the housing includes a fixing groove and a fixing protrusion. The fixing part serves to fix the housing to the slide.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is a perspective view of a bottom mounted slide 1 having a general configuration to which an automatic closing device 100 according to the present invention is attached. The bottom mounted slide 1 has a fixed rail 30 having a plurality of raceways 15. And a moving rail 20 which slides on the fixed rail 30, and a ball retainer (not shown) is positioned between the two rails 30 and 20 so that the moving rail 20 can slide. The lower end of the fixing rail 30 is connected to a slide fixing part 10 composed of a horizontal plate 12 and a vertical plate 11. The slide 1 has a fixing part 10 such as a desk. The bottom and / or sidewalls are fixed by suitable means such as screws and the drawers are installed by fastening to the movable rail 20 by suitable means such as screws. Thus, when the drawer is pushed or pulled, the drawers are fixed fixed to the drawers. In and out of the desk along the fixed rail 30 by the rail 20 It is presented.

The automatic closing device 100 of the present invention is attached to the front end portion of the horizontal plate 12, that is, the slide out direction of the slide, so that one side of the movable rail 20 can be combined with the automatic closing device 100 according to the present invention. Desorption protrusions 25 having an "L" type cross section are provided.

2 to 4, the automatic closing device 100 according to the present invention is a housing 110 having a cover shape, an elastic spring 170 seated inside the housing 110, this elastic spring ( The damper 190 is located on the side opposite to the 170, and the moving member 165 coupled to the housing 110. The moving member 165 is a linear motion member 150 and the rotary motion member 140. It is composed of

The elastic spring 170 used in the present invention has a tapered portion 174 that is formed thinner than the spring fuselage portion near the both ends 172 of the spring. The elastic spring 170 of this type has a spring having both ends in an annular shape. The service life is much longer than that.

Damper 190 is a general damper that includes a cylinder 192 and a piston rod 195 that protrudes from one side of the cylinder 192 and is relatively long, and any damper suitable for implementing the present invention may be used. On the side of the cylinder 192, a separate side protrusion 194 is formed to be able to bind to the damper binding portion 121 of the housing 110 to be described later.

The housing 110 is composed of a body portion 120 and a fixing portion 112 formed at one end of the body portion. The fixing portion 112 connects the housing 110 to the horizontal plate 12 of the slide 1. Therefore, it is sufficient to have a structure that can be fixed to the horizontal plate 12 by a suitable fixing means such as screws, in the illustrated embodiment, the fixing portion 112 is fixed to the fixing groove 114. It has a structure having a protrusion 113. A horizontal plate 12 having a fastener (not shown), which is also commonly used, having an engaging portion that protrudes through the fixing groove 114 and receives the fixing protrusion 113. The fixing part 112 can be fixed to the horizontal plate member 12 of the slide 1 by fixing to the front end of the fastener and engaging the fixing protrusion 113 at the engaging portion of the fastener. In an embodiment, the housing 110 is elongated so as to prevent the middle part from being lifted during operation. Lifting jaw 116 may be formed in the central portion of the body portion 120 of the housing 110. Such a lifting jaw 116 is optional.

 As shown in FIG. 5, an elastic spring seating portion 130 is formed at one side of the body portion 120 of the housing 110. The elastic spring seating portion 130 has a body of the elastic spring 170 positioned thereon. And a first spring engagement portion 137 to which one side of the elastic spring seating groove 131 and the elastic spring 170 are coupled. The spring engagement portion 137 has an end portion 172 of the elastic spring 170. It is composed of a spring end binding portion 138 to be inserted and a spring tapered portion binding portion 137 into which the tapered portion 174 is inserted, the shape of which is the spring of the second spring binding portion 152 of the linear motion member 150. It is formed in the same shape as that of the end binding part 154 and the spring tapered part binding part 153 (refer FIG. 4).

A moving member guide part including a first end surface 124, a second end surface 125, a first side surface 126, and a bottom surface 127 is formed in the middle portion of the body portion 120 of the housing 110. The movable member guide portion has a groove shape in which one side is open. Accordingly, a side groove 136 (see FIG. 2) is formed in one side of the housing 110, and the movable member 165 is formed in the side groove 136. The bottom surface 127 of the movable member guide portion includes a linear groove 133 and a circular groove 134 located at one side of the linear groove 133. 132 is formed.

A damper binding portion 121 to which a damper 190 is attached is formed at the front end portion of the body portion 120 of the housing 110, that is, the side opposite to the elastic spring seating portion 130. The damper binding portion 121 is formed. Is a cylindrical shape having a damper insertion hole 122 and has a damper side protrusion insertion groove 123 formed in the circumferential direction of the damper insertion hole 122. The side protrusion insertion groove 123 is a damper cylinder 192. The side protrusion 194 of the is formed so that the shape and number correspond to each other.

The linear movement member 150 of the moving member 165, as shown in Figure 6, to the coupling protrusion 160 is inserted into the guide body 132 of the rectangular body portion 151 and the moving member guide portion. One side of the body portion 151 is provided with a rotational movement region 162 in which a binding hole 163 is formed, and the other side has a second spring binding portion coupled to another side of the elastic spring 170. 152 is formed (see Fig. 4). The second spring fastening portion 152 is a spring end binding portion into which an end 172 of the elastic spring 170 is inserted so that an end of the elastic spring 170 can be engaged. 154 and the tapered portion 174 is inserted into a spring tapered portion binding portion 153 is inserted.

The rotary member 140 of the moving member 165, as shown in Figure 7, has the same shape as the claw of the crab. On one side of the rotary member 140, two straight surfaces 148 and two Rotation protrusion 147 having a curved surface 149 is formed, the other side of the binding projection 146 is inserted into the binding hole 163 of the rotation movement permanent 162 of the linear motion member 150 is In addition, a hook locking portion 141 including a first locking jaw 142 and a second locking jaw 143 is formed at one side of the rotary motion member 140. The angle α formed by the long axis of the 147 and the locking jaws 142 and 143 of the hook locking portion 141 forms a 45 ° angle. The hook locking portion 141 moves the rail when the slide 1 moves to the retracted position. 20) serves to couple with the detachable protrusion 125 formed on one side.

Hereinafter, the coupling relationship between the components will be described with reference to FIG. 4.

First, the moving member 165 is formed by inserting the binding protrusion 146 of the rotary movement member 140 into the binding hole 163 formed in the rotary movement region 162 of the linear movement member 150. At this time, the linear movement member Since the rotational movement region 162 is formed around the binding hole 163 of the 150, the rotational movement member 140 may perform a smooth rotational movement while seated and coupled to the linear movement member 150.

The moving member 165 has a coupling protrusion 160 of the linear motion member 150 and a rotation protrusion 147 of the rotary motion member 140 formed on the bottom surface 127 of the moving member guide part of the housing body 120. It is positioned in the housing body 120 to be inserted into the guide groove 132 (see Fig. 5). At this time, the first contact surface 157 and the second contact surface 158 of the linear motion member 150 (see Fig. 6). Are respectively in contact with the bottom surface 127 and the first side 126 (see Fig. 5) of the movable member guide portion, and the bottom surface 155 is a horizontal plate 12 of the slide 1 during the reciprocating movement of the movable member 165. ).

The movable member 165 reciprocates along the movable member guide of the housing body 120. When the drawer is in the maximum retracted position, i.e. the slide is in the maximum retracted position, the linear member of the movable member 165 When the end surface 161 of the 150 is in contact with the first end surface 124 of the moving member guide portion and the drawer is withdrawn, the first locking jaw 142 of the rotary motion member 140 of the moving member 165. The side is in contact with the second end surface 125 of the movable member guide portion (see FIG. 3). The rotary protrusion 147 of the rotary member 140 of the movable member 165 is a circular groove of the guide groove 132. The circular groove 134 deviates from the circular groove 134 only when the linear surface 148 (see FIG. 7) of the rotary protrusion is located in parallel with the linear groove 133 of the guide groove 132. It is possible to perform a linear motion along (133).

The damper 900 is bound by inserting the piston rod 195 of the damper into the damper insertion hole 122 of the damper binding part 121 first, and one side of the elastic spring 170 is a fuselage part of the housing 110. The other side of the first spring fastening part 137 of 120 is bound to the second spring fastening part 152 of the linear motion member 150 of the moving member 165, thereby automatically closing device 100 of the present invention. The device 100 is installed on the slide 1 by fixing the fixing portion 112 of the housing to the designated position of the horizontal plate 12 of the slide 1.

Hereinafter, an operation relationship of the automatic closing device 100 according to the present invention will be described with reference to FIGS. 8 to 11. In FIGS. 8 to 11, the housing 110 is omitted while being shown in the housing for the sake of understanding. The elastic spring 170 and the damper 190, which are only partially visible, the linear motion member 150 and the rotary motion member 140 are shown in solid lines, and the linear motion member 150 and the rotary motion member 140 are shown as solid lines. Only the guide groove 132 of the housing body 120 to which the reciprocating motion is indicated by a dotted line.

When the drawer is retracted, the moving rail 20 of the slide 1 moves in the direction of the arrow, and at this time, the hook catching portion 141 of the rotary motion member 140 of the automatic closing device 100 is detachable of the moving rail 20. In the open position toward the protrusion 25 (FIG. 8). When the moving rail 20 is continuously inserted, the detachable protrusion 25 is engaged with the second locking jaw 143 of the hook locking portion 141. (Fig. 9), and then rotates the rotary motion member 140 in the counterclockwise direction (Fig. 10). With this rotation, the rotary protrusion 147 of the rotary motion member 140 is a circular groove ( When the straight surface 148 of the rotary protrusion 147 is parallel to the linear groove 133 of the guide groove 132 by the rotational movement in the 134, the rotary protrusion 147 leaves the circular groove 134 The linear groove 133 is in a position to enable linear movement. The linear movement member 150 connected to the rotary movement member 140 is bound to the elastic spring 700 in an extended state. Therefore, the movable member 165-that is, the linear movement member 150 and the rotary movement member 140-moves to the fully retracted position by the force of the elastic spring 700, and in this case, the movable rail 20 Since the detachable protrusion 25 is caught by the first locking step 142, the drawer is automatically moved to the fully retracted position (Fig. 11). During the movement to the fully retracted position, the rear surface 199 of the drawer front is damper ( 190) (in the case of the drawer in which the automatic closing device according to the present invention is used, the bottom of the front of the drawer should be extended to be located below the bottom of the drawer), the drawer by the shock absorbing effect of the damper 190 In spite of the large contracting force of the elastic spring 170, it is automatically moved to the full retracted position smoothly.

Withdrawal of the drawer takes place in the reverse order of the above process. When the drawer is withdrawn in the fully retracted position (Fig. 11), the detachable protrusion 25 of the movable rail 20 pulls the first latching jaw 142 and opens the elastic spring 170. FIG. It extends and moves to the withdrawal position (opposite direction of the arrow) so that the rotary protrusion 147 of the rotary motion member 140 reaches the circular groove 134 through the straight groove 133 (Fig. 10), and then the rotary protrusion ( 147 is rotated in the clockwise direction in the circular groove 133 (Fig. 9), the detachable projection 25 of the moving rail 20 is out of the first locking jaw 142 of the hook engaging portion 141, withdrawal position In this case, since the straight surface 148 of the rotation protrusion 147 is not parallel to the straight groove 133 of the guide groove 132, the rotation protrusion 147 is a circular groove 134. It is not possible to escape, the elastic spring 170 is in an extended state and prepares for the next inlet.

According to the present invention, the lower mounting slide, that is, the drawer, can be automatically moved to the fully retracted position. Therefore, the drawer can be prevented from being reopened by the user's carelessness or collision repulsion force. It will move smoothly to the final entry position, giving the consumer a luxurious feel.

Claims (2)

As an automatic closing device attached to the lower mounting slide (1) comprising a moving rail 20, the detachable protrusion 25 is formed on one side, A cover member 110 formed of a cover part 110 having a body portion 120 and a fixing portion 112 formed at one end of the body portion, and a moving member composed of a linear movement member 150 and a rotary movement member 140. 165, an elastic spring 170 having a tapered portion 174 formed thinner than a spring fuselage portion near both ends 172 of the spring, and a cylinder 192 having a side protrusion 194 and the cylinder 192. Consists of a damper 190 including a piston rod 195 protruding from one side of, Body portion 120 of the housing 110 is (1) an elastic spring seating portion 130 having an elastic spring seating groove 131 in which the body of the elastic spring 170 is positioned and a first spring binding portion 137 to which one side of the elastic spring 170 is coupled; (2) a moving member guide portion having a first end surface 124, a second end surface 125, a first side surface 126, and a bottom surface 127, one side of which is an open groove; (3) a damper insertion hole 122 into which the cylinder 192 of the damper 190 is inserted and a damper side protrusion insertion groove 123 formed in the circumferential direction of the damper insertion hole 122 are provided, and the elastic spring seating part is provided. It includes a damper binding portion 121 is formed in a direction opposite to 130, The bottom surface 127 of the movable member guide part is formed with a guide groove 132 consisting of a straight groove 133 and a circular groove 134, The linear movement member 150 of the movable member 165 is composed of a rectangular body portion 151 and a coupling protrusion 160 inserted into the guide groove 132 of the movable member guide portion, the body portion 151 The second spring binding portion is coupled to the other side of the elastic spring 170 is formed on one side of the rotational movement region 162 is formed with a binding hole 163 and the other side 152 is formed, The rotation member 140 of the movable member 165 has a rotation protrusion 147 having two straight surfaces 148 and two curved surfaces 149, and a binding hole 163 of the linear motion member 150. Including a fastening protrusion 146 is inserted into the hook and the hook engaging portion 141 is coupled to the detachable protrusion 125 formed on one side of the slide moving rail 20, the hook locking portion 141 is the first locking jaw 142 and the second locking step 143, The damper 190 is inserted into the damper insertion hole 122 of the damper binding portion 121 of the housing 110, and one side of the elastic spring 170 is the first of the body portion 120 of the housing 110. The other side of the spring binding unit 137 is bound to the second spring binding unit 152 of the linear motion member 150 of the movable member 165, and the movable member 165 guides the movable member of the housing 110. The damper is attached to the front end of the automatic closing device is characterized in that the slide can be automatically closed by reciprocating movement along the moving member guide portion coupled to the portion. According to claim 1, Fixed part formed on one end of the body portion 120 of the housing 110 Automatic closing device with a damper attached to the front end, characterized in that 112 comprises a fixing groove 114 and the fixing projection (113).

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