KR101056917B1 - Automatic closing device with long stroke - Google Patents

Abstract

The present invention relates to an automatic closing device used for the slide for mounting the bottom.

This automatic closing device is composed of a housing in the form of a cover, a moving member composed of a linear motion member and a rotary motion member, an elastic spring having a tapered portion formed thinner than a spring fuselage portion near both ends of the spring, and a roller member. The member is composed of a central member and two side members positioned on both sides of the central member, and has an attachment hole formed to penetrate the central member and the side member. The housing in the form of a cover is composed of a body part and a fixing part. The fuselage part includes a first spring engaging part to which one side of the elastic spring is coupled, a roller seating part in which the roller member is located, a spring passage in which the elastic spring is located, and a moving member guide part in which the moving member is located and reciprocated. The roller seating portion is provided with a protrusion that is inserted into the attachment hole of the roller member.

According to the present invention, it is possible to automatically move the lower mounting slide, that is, the drawer to the fully retracted position. Further, the stroke length can be increased without increasing the length of the automatic closing device.

Bottom Mount Slide, Automatic Closing Device, Elastic Spring, Roller Member

Description

Self-closing means with a long stroke}

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

2 and 3 are front perspective views of the automatic closing device according to the present invention, respectively, in which the elastic spring is in a contracted and extended state.

4 is a rear perspective view of the automatic closing device shown in FIG.

Figure 5 is an exploded perspective view of the automatic closing device shown in FIG.

6 is a perspective view of a housing of the automatic closing device;

7 is a perspective view of a roller member used in the automatic closing device.

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

9 is a perspective view of a rotary motion member of the movable member.

10 to 13 are explanatory diagrams showing an 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, in particular to an automatic closing device having a long stroke.

When drawers are installed in desks, cabinets, etc., slides are generally attached so that drawers can be pulled out and pulled out of the main body of desks, cabinets, etc., and slides are side mounted slides and drawers attached to the sides of the drawers. 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 solve this inconvenience, the present applicant has a cover-type housing, a moving member consisting of a linear motion member and a rotational motion member, an elastic spring having a tapered portion formed thinner than a spring fuselage portion near both ends of the spring, and a damper. Applied automatic closing device (for example, Korean Patent Application No. 2006-0027365, 2006-0027355), these automatic closing device automatically draws the drawer completely, and furthermore, by the shock absorbing action of the damper This has the advantage of smoothly moving to the final retracted position.

However, these automatic closing devices have the disadvantage that the stroke length is short because the elastic spring is located in the housing in a straight line. The distance that the automatic closing device engages with the drawer and moves to the final retracted position, that is, the stroke length is proportional to the length of the spring, Due to the spring's elastic limit, one-half of the spring's length generally corresponds to the maximum stroke. On the other hand, if the spring length is increased to increase the stroke, the size of the automatic closing device itself increases.

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 having a long stroke distance.

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 is composed of a housing in the form of a cover, a moving member composed of a linear motion member and a rotary motion member, an elastic spring having a tapered portion formed thinner than a spring fuselage portion near both ends of the spring, and a roller member.

The roller member is composed of a central member and two side members positioned on both sides of the central member, and has an attachment hole formed to penetrate the central member and the side member.

The cover-shaped housing includes a body part and a fixing part. The body part includes a first spring fastening part to which one side of the elastic spring is coupled, and a roller seating part where the roller member is located.

The spring passage in which the elastic spring is located, and the moving member guide portion for reciprocating the moving member is provided.

The roller seating portion is provided with a protrusion which is inserted into the attachment hole of the roller member.

The movable member guide portion includes a first end surface, a second end surface, a first side surface, and a bottom surface, and a side opposite to the first side surface is open, and the bottom surface includes a straight groove and an arc-shaped groove. Guide grooves are formed.

The linear motion member of the movable member is composed of a rotary motion member coupling portion and a body portion having a binding hole, the body portion is inserted into the guide groove and coupled to the other side of the coupling projection and the elastic spring reciprocating along the second A spring binding is formed.

The rotary member of the movable member is a rotary motion space portion having a binding projection inserted into the binding hole of the rotary member engaging portion of the linear member, the first projection and the second projection is inserted into the guide groove and reciprocating along it, and It includes a hook locking portion consisting of the first locking jaw and the second locking jaw to engage with the detachable projection formed on one side of the slide moving rail.

The roller member is positioned in the roller seating portion of the housing such that the attachment hole is inserted into the protruding protrusion, and the elastic spring has one side extending through the spring passage of the housing and the roller member on the other side of the first spring fastening portion of the housing. It is located in the housing in a U-shape by binding to the second spring binding portion of the linear movement member, the movable member can reciprocate along the guide groove by engaging with the guide member of the movable member of the housing so that each protrusion is inserted into the guide groove. have.

The automatic closing device having the above configuration has a long stroke.

In this case, it is preferable that an opening is formed in the spring passage in the direction of the first spring binding portion. In addition, a fixing groove is formed in the fixing portion of the housing.

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

1 is a perspective view of the bottom-mounted slide 1 of a general configuration to which the automatic closing device 100 according to the present invention is attached.

The lower mounting slide 1 includes a fixed rail 30 having a plurality of raceways 15 and a moving rail 20 sliding on the fixed rail 30, the two rails 30 and 20. A ball retainer (not shown) is positioned between the movable rails 20 so that the movable rail 20 can slide. The lower end of the fixed rail 30 includes a horizontal fixing member 12 and a vertical fixing member 11 which includes a vertical plate 11. 10. The slide 1 is secured by means of suitable means, such as screws, on the bottom and / or side walls of the desk, etc., and the drawer is also suitable means, such as screws, on the movable rail 20. Therefore, when the drawer is pushed or pulled, the drawer is pulled into or pulled out of the desk along the fixed rail 30 by the movable rail 20 fixed to the drawer.

The automatic closing device 100 of the present invention is attached to a suitable position of the horizontal plate 12, one side of the movable rail 20 is formed in the cross section formed to be coupled with the automatic closing device 100 according to the present invention "L Detachable protrusion 25 is provided.

2 to 4 are front and rear perspective views of the automatic closing device 100, and FIG. 5 is an exploded perspective view of the device 100. As shown in FIG.

The automatic closing device 100 according to the present invention includes a housing 110, an elastic spring 170, a roller member 190, and a moving member 165 composed of a linear motion member 150 and a rotary motion member 140. It is composed.

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 of the elastic spring. The elastic spring 170 is mounted in the housing 110 to form a U shape.

The roller member 190 has a typical shape consisting of a central member 194 and two side members 192 positioned on both sides of the central member 194 (see FIG. 7). The roller member 190 has a central member. An attachment hole 196 is formed to penetrate the 192 and the side member 192.

The housing 110 is composed of a fuselage part 111 and a fixing part 112 (see Figs. 2 and 3), and has a cover shape with an empty inside (see Fig. 5). It serves to fix the 110 to the appropriate position of the slide horizontal plate 12, in the illustrated embodiment shows that the fixing groove 113 through which the screw or rivet penetrates as an attachment means.

The body portion 111 has a spring passage in which a first spring engaging portion 137 to which one side of the elastic spring 170 is coupled, a roller seating portion 117 in which the roller member 190 is located, and an elastic spring 170 are located. 115 and a moving member guide portion 120 in which the moving member 165 is positioned and reciprocated is provided (see FIGS. 5 and 6).

The spring passage 115 and the roller seating portion 117 are the body portion of the elastic spring 170 and the roller member 190 are positioned, respectively, the spring passage 115 of the moving member guide portion 120 to be described later It is located in the side parallel to the side, the roller mounting portion 117 is located at one end of the spring passage 115 and the moving member guide portion 120 so that they are in communication with each other. A protrusion 118 is inserted into the attachment hole 196 of the 190. An opening 114 is formed in the spring passage 115 in the direction of the first spring engagement portion 137 (FIG. 2, FIG. 3 and 6). The opening 114 serves to facilitate the binding operation when the elastic spring 170 is inserted into the first spring binding portion 137 to be described later.

 The moving member guide portion 120 includes a first end surface 124, a second end surface 125, a first side surface 126, and a bottom surface 127 and is opposite to the first side surface 126. Therefore, the opening surface 136, as shown in Figs. 2 and 3, reciprocates while a part of the moving member 165 protrudes.

The bottom surface 127 of the moving member guide portion is formed with a guide groove 132 consisting of a straight groove 133 and an arc-shaped groove 134 located on one side of the straight groove 133. The arc-shaped groove 134 is formed. ) Is positioned to be inclined in the direction of one side 126 of the movable member guide portion. The movable member 165 to be described later is coupled to the guide groove 132 to thereby reciprocate.

In addition, an elastic deformation portion 128 is formed on the bottom surface 127 of the moving member guide portion adjacent to the straight groove 133 of the guide groove 132. The elastic deformation portion 128 has an elongated elastic deformation protrusion. 129 and a first deformation space 130 and a second deformation space 131 formed on both sides of the elastic deformation protrusion 129. The first deformation space 130 and the second deformation space 131. Is a groove formed through the housing 110 itself (see FIGS. 3 and 6).

128 serves to easily return to a normal operation state again when the automatic closing device 100 malfunctions (for details, refer to the above-mentioned Korean Patent Application No. 2006-).

0027365 and 2006-0027355).

The first spring binding portion 137 to which one side of the elastic spring 170 is coupled is a spring into which the spring end binding portion 138 and the tapered portion 174 into which the end 172 of the elastic spring 170 is inserted are inserted. It is composed of a tapered portion binding portion 137 (see Fig. 3), the shape is a spring end portion 154 and the spring taper portion portion 153 of the second spring portion 152 of the linear motion member 150. ) And the corresponding shape (see Fig. 8).

The linear motion member 150 of the moving member 165, as shown in Figure 8, is composed of a rotary motion member coupling portion 162 and the body portion 151.

Plate-shaped rotational movement member coupling portion 162 is a portion that is coupled to the rotational movement member 140 to be described later has a binding hole 163 formed therein. A straight surface on the side of the rotational movement member coupling portion 162. 168 and the diagonal surface 167 are formed.

In one direction of the body portion 151 of the linear motion member 150, the engaging projection 160, the second spring engaging portion 152, and the piston rod insertion groove 156 is formed. It has a cylindrical shape, and is inserted into the guide groove 132 formed on the bottom surface 127 of the movable member guide portion to reciprocate accordingly. The second spring binding portion 152 is the other side of the elastic spring 170 Spring-tapping portion 154 into which the end portion 172 of the elastic spring 170 is inserted and the spring taper portion 174 into which the tapered portion 174 is inserted are inserted so that the end portion of the elastic spring 170 can be coupled to this coupling portion. It consists of a part 153.

A sliding protrusion 155 is formed in the other side direction of the body portion 151, that is, the direction opposite to the side on which the coupling protrusion 160 is formed (see FIG. 5). The surface on which the sliding protrusion 155 is formed Is a part which is in frictional contact with the horizontal plate 12 of the slide 1 during the reciprocating motion of the moving member 165, and is made in the form of a protrusion so that the contact area becomes small in order to minimize frictional resistance.

The rotating member 140 of the moving member 165, as shown in Figure 9, has a triangular shape as a whole. On the side of the rotating member 140, the first locking jaw 142 and the second locking jaw ( Hook hook portion 141 consisting of 143 is formed. The hook hook portion 141 is coupled to the detachable protrusion 25 formed on one side of the moving rail 20 when the slide 1 moves to the retracted position. In addition, the rotating member 140 of the movable member 165 is formed with an inclined surface 149 adjacent to and connected to the first locking step 142.

The first protrusion 144 and the second protrusion 147 are formed in one side direction of the rotary motion member 140. These protrusions 144 and 147 may have a cylindrical shape like the coupling protrusion 160 of the linear motion member 150. It is inserted into the guide groove 132 and reciprocates along it.

A rotational motion space portion 145 is formed in the other direction of the rotational motion member 140 (see FIG. 5). The boundary of the rotational motion space portion 145 has a first surface 148 and a second surface 148 '. In the rotary motion space 145, a binding protrusion 146 is inserted into the binding hole 163 of the rotary motion member coupling part 162 of the linear motion member 150.

Hereinafter, the coupling relationship between the components will be described with reference to FIG. 5.

First, the moving member 165 is formed by inserting the binding protrusion 146 of the rotary motion member 140 into the binding hole 163 formed in the rotary motion member coupling portion 162 of the linear motion member 150. Around the binding protrusion 146 of the movement member 140, the rotary movement member 162 of the linear movement member 150 is seated and rotated so that the rotational movement space portion 145 is formed so that the rotary movement member ( 140 may be smoothly rotated while being coupled to the linear motion member 150. At this time, the first surface 148 and the second surface 148 'of the rotary motion space 145 is coupled to the rotary motion member, respectively. It can rotate until it encounters the straight surface 168 and the diagonal surface 167 of the part 162.

The moving member 165 includes a coupling protrusion 160 of the linear motion member 150, a first protrusion 144 and a second protrusion 147 of the rotary motion member 140 to guide the moving member of the housing body 120. It is coupled to the moving member guide portion 120 of the housing 110 to be inserted into the guide groove 132 (see Fig. 6) formed in the bottom surface 127 of the portion. 158 and the second contact surface 159 (see Fig. 8) are in contact with the bottom surface 127 and the first side 126 (see Fig. 6) of the movable member guide portion, respectively. The movable member 165 is the guide groove. When the drawer is in the maximum retracted position, that is, when the slide is in the maximum retracted position, the end face 157 of the linear movement member 150 of the movable member 165 is guided by the movable member 132. When the drawer is pulled out, the rotary motion member 140 of the movable member 165 moves to the second end surface 125 and the first side of the movable member guide part. It comes into contact with face 126.

The roller member 190 is positioned at the roller seating portion 117 of the housing 110 so that the attachment hole 196 is inserted into the protruding protrusion 118. The elastic spring 190 has a U-shaped housing 110. That is, one side of the elastic spring 170 is fastened to the first spring fastening part 137 of the housing 110 and the body part is connected to the other side via the spring passage 115 and the roller member 190. The second spring fastening portion 152 of the linear motion member 150 of the moving member 165 is fastened. In this way, the automatic closing device 100 of the present invention is completed, and the housing 110 is slid with suitable fixing means. The device 100 is installed on the slide 1 by fixing it to the designated position of the horizontal plate member 12 of (1).

Hereinafter, the operation relationship of the automatic closing device 100 according to the present invention will be described with reference to FIGS. 10 to 13. FIG. 10 to FIG. 13 are understood as a plan view of the automatic closing device 100 in which the housing 110 is omitted. For convenience, the roller member 190, the linear motion member 150 and the rotary motion member 140 is shown as a solid line, the linear motion member 150 and the rotary motion member 140 to the reciprocating housing body portion Only the guide grooves 132-the arcuate grooves 134 and the straight grooves 133-of the 120 are indicated by dotted lines.

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 projection 25 (Fig. 10). The second projection 147 of the rotary motion member 140 is located in the linear groove 133 of the guide groove 132, the rotary motion member 140 The first protrusion 144 of) is caught in the arc-shaped groove 134 of the guide groove 132.

Detachable protrusion 25 is coupled to the second locking jaw 143 of the hook engaging portion 141 when the moving rail 20 is continuously drawn in (Fig. 11), and then rotates the rotary member 140 in a clockwise direction. In this rotation, the first protrusion 144 of the rotary motion member 140 is separated from the arc-shaped groove 134 of the guide groove 132 so that the linear shape of the guide groove 132 is rotated. The groove 133 is positioned. Since the elastic spring 700 is attached to the side of the linear motion member 150 connected to the rotary motion member 140 in an extended state, the movable member 165-that is, the linear motion by the force of the elastic spring 700. The member 150 and the rotary motion member 140 are moved to the fully retracted position, in which case the detachable protrusion 25 of the movable rail 20 is caught by the first locking step 142, and thus the drawer is automatically moved. It is moved to the fully retracted position with (Fig. 13).

The 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. 13), the detachable protrusion 25 of the movable rail 20 pulls the first locking jaw 142 and this time the elastic spring 170 E) and move to the withdrawal position (FIG. 12). Withdrawal of the drawer continuously causes the detachable protrusion 25 to push the first locking jaw 142 to rotate the rotary motion member 140 counterclockwise. The first protrusion 144 of the rotary motion member 140 is caught by the arc-shaped groove 134 of the guide groove 132 (Fig. 11), and then the detachable protrusion 25 of the movable rail 20 is hook hooked. The first locking jaw 142 of 141 continues to move to the withdrawal position (FIG. 10). At this time, since the first protrusion 144 is caught in the arc-shaped groove 134 of the guide groove 132, it is separated. In this case, the elastic spring 170 is in an extended state and is ready for the next inlet. At this time, the roller member 190 is seated in a U shape on the housing 110. It serves to make Spring St. (170) can facilitate kidney and contraction movements.

The distance that the automatic closing device 100 engages with the drawer and moves to the final retracted position, that is, the stroke distance corresponds to the distance that the moving member 165 moves from the state of FIG. 10 to the state of FIG. 13. Proportional to the length of the spring, as described above, the spring's elastic limit generally results in half of the spring's length corresponding to the maximum stroke.

When the elastic spring 170 is seated in a U-shape in the housing 110 as in the present invention, the maximum stroke distance is almost similar to the length of the automatic closing device 100. However, the elastic spring 170 is conventionally used. If it is seated in the housing in a straight shape, the maximum stroke will be similar to 1/2 of the length of the automatic closing device, and if the spring length is increased to increase the stroke distance, the automatic closing device will be longer. This is caused.

According to the present invention, it is possible to automatically move the lower mounting slide, that is, the drawer to the fully retracted position. Further, the stroke length can be increased without increasing the length of the automatic closing device.

Claims (3)

In the automatic closing device 100 is attached to the lower mounting slide (1) including a moving rail 20, the detachable protrusion 25 is formed on one side, The automatic closing device 100 is a cover 110, a moving member 165 composed of a linear motion member 150 and a rotary motion member 140, than the spring fuselage portion near the both ends 172 of the spring Composed of an elastic spring 170, and a roller member 190 having a tapered portion 174 is formed thin, The roller member 190 is composed of two side members 192 positioned on both sides of the central member 194 and the central member 194, and formed to penetrate the central member 192 and the side member 192. Has an attachment hole 196, The housing 110 of the cover form is composed of a body portion 111 and the fixing portion 112, the first spring binding portion 137 to which one side of the elastic spring 170 is coupled to the body portion 111, A roller seating part 117 on which the roller member 190 is located, a spring passage 115 on which the elastic spring 170 is located, and a moving member guide part on which the movable member 165 is reciprocated. 120 is provided, The roller seating portion 117 is formed with a protrusion 118 is inserted into the attachment hole 196 of the roller member 190, The movable member guide portion 120 is composed of a first end surface 124, a second end surface 125, a first side surface 126, and a bottom surface 127 and oppose the first side surface 126. The side is open, the bottom surface 127 is formed with a guide groove 132 consisting of a straight groove 133 and an arc-shaped groove 134, The linear motion member 150 of the movable member 165 is composed of a rotary motion member coupling portion 162 and a body portion 151 having a binding hole 163, the body portion 151 in the guide groove 132 The second spring binding portion 152 is coupled to the other side of the coupling projection 160 and the elastic spring 170 is inserted into the reciprocating motion is formed thereon, The rotary motion member 140 of the movable member 165 has a rotary motion space portion having a binding protrusion 146 inserted into the binding hole 163 of the rotary motion member coupling portion 162 of the linear motion member 150. 145, the first protrusion is inserted into the guide groove 132 to reciprocate along it 144 and the second protrusion 147, and the hook consisting of the first locking jaw 142 and the second locking jaw 143 to be coupled to the detachable projection 25 formed on one side of the slide moving rail (20) It includes a locking portion 141, The roller member 190 is positioned in the roller seating portion 117 of the housing 110 such that the attachment hole 196 is inserted into the protruding protrusion 118, and the elastic spring 170 has one side of the first hole of the housing 110. The other side of the spring binding unit 137 extends through the spring passage 115 and the roller member 190 of the housing 110, so that the second spring binding unit of the linear movement member 150 of the moving member 165 ( 152 is located in the housing 110 in a U-shape, the moving member 165 is a projection (160, 144, 147 is coupled to the moving member guide portion 120 of the housing 110 to be inserted into the guide groove 132, the automatic closing device having a long stroke distance, characterized in that the reciprocating movement along the guide groove (132). According to claim 1, Automatic closing device having a long stroke, characterized in that the opening 114 is formed in the spring passage 115 in the direction of the first spring binding portion (137). The automatic closing device of claim 1, wherein a fixing groove (113) is formed in the fixing portion (112) of the housing (110).

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