KR101056922B1 - Durable automatic closing device - Google Patents

Abstract

The present invention relates to an automatic closing device of a slide.

The present invention includes a pair of springs; a spring coupling part and a movable member sliding part to which one side of the spring is coupled are formed on both sides, and a fixing member having a moving pin guide part formed of a straight guide part and a curved guide part therein; The plate-shaped portion is formed in the groove, the plate-shaped portion is formed on both sides of the sliding groove coupled to the moving member sliding portion, and formed on both sides of the sliding groove and the spring coupling portion coupled to the other side of the spring and the fixing member A moving member reciprocating along the moving member slide; a moving pin having a support column inserted into the groove of the moving member and moving along the moving pin guide of the fixed member integrally with the moving member; The moving pin guide groove for coupling, and the body consisting of a rectangular body formed with a binding groove for coupling to the binding projection of the inner moving rail It is applied to the automatic closing device consisting of a guide pin.

According to the present invention, the durability of the movable pin is greatly increased, and the binding of the movable pin to the fixing member is easily facilitated. Also, the durability of the automatic closing device itself is greatly increased due to the durability of the movable pin and the durability of the fixing member.

Slide, automatic closing device, moving pin, fixing member, moving member, moving pin guide

Description

Self closing means with improved endurability}

1 is a perspective view of a three-member slide with a known automatic closing device.

Figure 2 is a perspective view of a known automatic closing device.

Figure 3 is a perspective view of a moving pin used in the known automatic closing device.

4 is a perspective view of a moving member used in a known automatic closing device.

5 is a front view of a fixing member used in a known automatic closing device.

Figure 6 is a perspective view of a moving pin guide used in the known automatic closing device

Figure 7 is a rear view of the moving pin guide shown in FIG.

8 to 10 are explanatory views of the operating state of the automatic closing device shown in FIG.

FIG. 11 is a partial perspective view of the slide inner movable rail of FIG. 2; FIG.

12 is a perspective view of an automatic closing device according to the present invention.

Figure 13 is a perspective view of a moving pin according to the present invention.

14 is a perspective view of a fixing member according to the present invention.

 The present invention relates to an automatic closing device of a slide, in particular to an automatic closing device with greatly improved durability.

A slide is usually used to draw and draw a drawer into a closed position and an open position in a sliding manner with respect to a main body such as a desk or a wardrobe. In this case, an automatic closing that automatically draws the drawer completely without the user drawing the drawer completely. It is very convenient to attach the device to the slide.

The present applicant has developed a technology for a new and convenient automatic closing device and filed with Korean Patent Application No. 2005-0047588.

The automatic closing device has a pair of springs, a spring coupling portion and a movable member sliding portion coupled to one side of the spring is formed on both sides and a fixed member formed inside the moving pin guide portion consisting of a straight guide portion and a curved guide portion, spring A spring coupling part and a groove into which the other side of the coupling member is coupled, the groove being inserted into the movable member reciprocating along the slide of the movable member of the fixing member, the groove being inserted into the groove of the movable member to be integral with the movable member. It comprises a moving pin moving along the moving pin guide portion, and a moving pin guide that serves to detachably attach the moving pin. The moving pin guide is fixed to the binding protrusion of the inner moving rail of the slide to move the inner moving rail. Moving along, and the fixing member is fixed to one end of the fixing rail of the slide so as to correspond to the moving pin guide by means of rivets. Therefore, the automatic closing device is very convenient because the user automatically draws the drawer even if the user does not draw the drawer completely.

At this time, the automatic closing device is usually manufactured by injection molding using a plastic material having a suitable strength. However, when the drawer is moved to the fully retracted position by the force of the spring, the moving pin is combined with the moving pin guide to the fully retracted position. In this case, the moving pin applies the impact force (this impact force is applied to the relevant part of the automatic closing device when the load of the slide moving rail itself, as well as the load of the drawer and the contents of the drawer, moves to the fully retracted position by the force of the spring and stops. Failure to function due to broken or bent movement pins, and / or repeated engagement and / or disengagement of the moving pin guides, often resulting in reduced durability of the automatic closing device. In addition, the process of fastening the moving pin to the fixing member to make the automatic closing device is very cumbersome. It was.

An object of the present invention is to solve the problems of the prior art to provide a moving pin with high durability.

In another aspect, the present invention provides an automatic closing device that is easy to bind the moving pin to the fixing member.

 The present invention includes a pair of springs; a spring coupling part and a movable member sliding part to which one side of the spring is coupled are formed on both sides, and a fixing member having a moving pin guide part formed of a straight guide part and a curved guide part therein; The plate-shaped portion is formed in the groove, the plate-shaped portion is formed on both sides of the sliding groove coupled to the moving member sliding portion, and formed on both sides of the sliding groove and the spring coupling portion coupled to the other side of the spring and the fixing member A moving member reciprocating along the moving member slide; a moving pin having a support column inserted into the groove of the moving member and moving along the moving pin guide of the fixed member integrally with the moving member; The moving pin guide groove for coupling, and the body consisting of a rectangular body formed with a binding groove for coupling to the binding projection of the inner moving rail The moving pin guide is fixed to the binding protrusion of the inner moving rail of the slide and moves along the inner moving rail, and the fixing member is fixed to one end of the fixed rail of the slide so as to correspond to the moving pin guide. Is applied to an automatic closing device that automatically draws the drawer even if the drawer is not fully retracted.

According to the present invention, a binding groove is formed at the end of the linear guide portion of the movable pin guide part of the fixing member to facilitate the movable pin binding.

In addition, according to the present invention, a reinforcing portion is formed at the lower end of the support pillar of the moving pin, and a receiving groove having a depth greater than the height of the reinforcing portion is formed along the circumference of the moving pin guide of the fixing member. This improves the durability of the automatic closing device as a whole.

Further, according to the present invention, the reinforcing plate portion is formed in the end direction in which the spring coupling portion of the fixing member is located in the fixing member. The reinforcing plate portion serves to further increase the durability of the automatic closing device.

Further, according to the present invention, rail passages are provided on both sides of each of the reinforcing plate portion of the fixing member and the plate-shaped portion of the moving member to facilitate the sliding of the inner moving rail. This serves to increase the withdrawal length of the inner moving rail. .

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. First, the configuration, operation, and problems of a known automatic closing device will be described with reference to FIGS. Explain the points.

As shown in Figure 1, the automatic closing device 20 already filed by the applicant is attached to one side of the slide 10. The slide 10 shown is a fixed rail (outer member) 800, fixed An intermediate moving rail (intermediate member) 900 for sliding in the rail 800, an inner movable rail (inner member) 700 for sliding in the intermediate moving rail 900, and a ball located between each rail It consists of a retainer 950 and is folded in three stages (the automatic closing device is equally applied to a two-stage folding slide composed of a fixed rail and one moving rail). The fixed rail 800 is placed at an appropriate position of the main body. By attaching the slide 10 is installed, the drawer 960 is fastened to the inner movable rail 700 so that the movement of the drawer 960 to slide the inner movable rail 700 and / or the intermediate movable rail (900) The automatic closing device for the slide 20 is installed at the end of the fixed rail 800, The rail groove 910 to the end stage of the end portion, and between the movable rail 900, a portion of the self-closing device 20 to be received in a longitudinal direction is formed. A binding protrusion protruding in the direction of the intermediate moving rail 900 to the inner moving rail 700

710 is formed.

 2 is a perspective view of the automatic closing device 20, which comprises a moving pin 400, a moving member 200, a fixing member 100 and a pair of springs 500. The pin 400, the moving member 200, and the fixing member 100 will be described in the configuration and operation within the range necessary for the description of the present invention, and it is preferable to refer to the patent application for more details. .

 The moving pin 400 has a guide protrusion 410 on one side, and a support pillar 430 on the other side, and a support plate 420 on the middle portion thereof (see FIG. 3). The guide protrusion 410 and the support pillar 430. All have a cylindrical shape. As described above, the moving pin 400 has a support column due to impact force.

430 has a problem that often occurs when the lower end is broken or bent.

On both sides of the fixing member 100, as shown in Figure 5, a spring coupling portion 111 to which one side of the spring 500 is coupled is formed, the straight guide portion 124 and the curved guide portion therein The moving pin guide part 123 is formed in the longitudinal direction. The thickness of the fixing member 100 is thinner than the body thickness but corresponds to the size of the sliding groove 222 of the moving member 200 to be described later. The moving member slide portion 121 is inserted into the slide groove 222 of the moving member 200 is formed.

 The moving member 200, as shown in Figure 4, the plate-shaped portion 210 of the substantially rectangular shape, the sliding column 220 formed integrally with the plate-shaped portion 210, and the plate-like portion 210 It is composed of a spring coupling portion 212 formed on both sides. The plate portion 210 is formed with a groove 211 is inserted into the movable pin 400 to move in the left and right directions. On one side of the) is formed a shock buffer 213 that serves to cushion the impact applied to the moving member 200 when colliding with the other member. The sliding column 220 has a protrusion 221 and a U-shaped Slide groove 222 is formed, the slide groove 222 is coupled to the moving member slide portion 121 of the fixing member (100).

In addition, the automatic closing device 20, as shown in Figures 6 and 7, is bound to the inner bottom of the inner moving rail 700, the moving pin guide to be coupled to the removable pin 400, removable ( 300).

A moving pin guide groove 350 is formed in the moving pin guide 300, and the moving pin guide groove 350 is composed of a moving pin inlet 310 and a moving pin catching part 320. 310 is formed by the first inlet surface 311 and the second inlet surface 312, the moving pin locking portion 320 is the first linear locking surface 323, the second linear locking surface 324, and A curved locking surface 325 is formed. A locking groove 328 through which the moving pin is caught is formed in the second linear locking surface 324 of the moving pin inlet portion 310. In addition, the moving pin guide 300 There is a groove 330 is inserted into the moving projections 710 (see Fig. 5) of the inner movable rail 700 of the slide pin guide. In addition, the movable pin guide 300 has a buffer column (both sides) 340 is formed. The buffer part pillar 340 is formed to be slightly open out, and the buffer part groove 340 is formed around the buffer part pillar 340. Because In Figure 7, which shows the rear view of the moving pin guide (where the back refers to the surface where the moving pin guide binds to the inner moving rail of the slide), the buffer column 340 is larger than both sides of the moving pin guide 300. The buffer column 340 is easily inserted by the elastic buffering action when the moving pin guide 300 is inserted into the inner moving rail 700 of the slide. The guide 300 serves to prevent the departure from the inner moving rail 700 of the slide.

 The automatic closing device 20, first, the guide protrusion 410 of the moving pin 400 is pushed into the moving pin guide part 123 to move the moving pin 400 to the moving pin guide part 123 of the fixing member 100. After binding to the sliding groove 222 of the moving member 200 is inserted into the moving member sliding portion 121 of the fixing member 100 and the guide projection 410 of the moving pin 400 at the same time the moving member 200 By inserting into the groove 211 of the) to bind the moving member 200 to the fixing member 100, one side of the spring 500 is bound to the spring coupling portion 111 of the fixing member 100 and the spring 500 The other side of the) is completed by binding to the spring coupling portion 212 of the movable member 200 (see Figure 2). In this coupled state, the movable member 200 moves the slide member 121 of the fixed member. At the same time, the sliding pin 400 is integrated with the moving member to move along the moving pin guide part 123 of the fixing member 100.

When the moving pin 400 described above is attached to the moving pin guide part 123 of the fixing member 100, the support protrusion 127 is guided by the guide protrusion 410 of the moving pin 400 to the buffer space part 126 ( At the same time, the moving pin 400 must be inclined inclined while being pushed in. At this time, the resistance of the support protrusion 127 is not easy to force it into the buffer space 126. have.

The operation of the automatic closing device will be described with reference to Figs. 8 to 10. In Figs. 8 to 10, the slide shown has two moving rails (middle moving rail and inner moving rail) and one fixed rail. The three-member slide or the intermediate movable rail between the inner movable rail 700 and the fixed rail 800 for the sake of simplicity is not shown. For convenience, the drawer and the body wall are omitted and only the slide is illustrated and the fixing member is also illustrated. 100 is fixed to the fixed rail 800, the moving pin guide 300 is fixed to the inner bottom of the inner movable rail 700 to face the fixing member 100, but is not visible from the outside, here the movable pin guide for convenience

(300) is shown by the solid line.

8 shows that the fixing member 100 is fastened to the fixing rails 800 of the slide with rivet fixtures 112 and 113, and the moving pin guide 300 is fastened to the fastening protrusion 710 of the inner moving rail 700 of the slide. It shows that the state is separated from each other. That is, when the drawer is pushed from the open position to the closed position, the inner moving rail 700 of the slide comes from the pulled out position to the pulled in position, The moving pin 400 inserted into the moving member 200 and inserted into the moving member 200 is curved guide portion of the moving pin guide part 123 of the fixing member 100.

It is in the state of hanging 125 and the spring 500 is in the state of maximum tension.

9 is a view showing a state in which the inner moving rail 700 is moved to a more retracted position and the moving pin guide 300 is coupled with the moving pin 400 hanging on the curved guide portion 125. Moving pin 400 ) Is inserted into the moving pin inlet 310 formed by the first inlet surface 311 and the second inlet surface 312, and continues to the first linear locking surface 323 of the moving pin locking portion 320 ) And the second linear locking surface 324. The movement causes the moving pin 400 to be disengaged in the state in which the moving pin 400 is caught by the curved guide part 125. As soon as the separation from the 125 is completed, the moving member 200 and the moving pin 400 which are integrally moved by the tension force of the spring 500 are caught by the fixing member 100 along the linear guide part 124. ) Is moved to the fully retracted position along the straight guide portion 124 of the fixing member 100 until it is attached to the second, the second of the moving pin guide 300 Since the support pillar 430 of the movable pin 400 is suspended on the straight engaging surface 324, the movable pin guide 300 moves along the movable pin 400, which is an inner movable rail 700 of the slide. ) Is automatically moved to the full retracted position. At this time, the locking groove 328 is formed in the second straight locking surface 324, the locking groove 328 is curved moving pin 400 It is formed at a position to take the moving pin 400 at the moment of almost exiting the guide portion 125, so that the moving pin 400 as soon as the moving pin 400 ends the departure from the curved guide portion 125 It is securely caught in the locking groove 328 to move along the straight guide portion 124.

 10 is a view showing that the moving pin guide 300 is coupled to the moving pin 400 in the fully retracted position of the slide (ie, the drawer is completely closed) by the force of the spring 500.

Withdrawal of the slide takes place in the reverse order of the above procedure.

Meanwhile, as described above, when the moving pin guide 300 is attached to the inner moving rail 700, the tip of the inner moving rail 700 before the moving pin guide 300 is coupled to the moving pin 400. It is caught by the plate portion 210 in the direction B of Fig. 4 without riding over the moving member 200. Thus, as shown in Fig. 11, the cutout portion 750 is formed at the distal end of the inner movable rail 700. Formed so that the inner end of the moving rail (700) is carried over the moving member 200, so that the moving pin guide 300 can be combined with the moving pin (400). If formed 750, the incision during withdrawal

750 causes interference with the balls of the ball retainer 950. As a result, when the inner movable rail 700 is pulled out, the maximum pulling length is approached.

The present invention is to solve the problems of the conventional automatic closing device as described above, Figure 12 to 14 is an automatic closing device 20 ', the moving pin 400' and the fixing member according to the present invention.

A perspective view of 100 '.

The moving pin guide constituting the automatic closing device 20 'according to the present invention is exactly the same as the conventional moving pin guide 300, and the fixing member 100', the moving member 200 ', the moving pin 400' And the spring 500 have the same basic construction and working relationship as those of the conventional one. Thus, the following description will focus on the improved parts (the same reference numerals as the conventional ones are described with reference to known devices).

The fixing member 100 'used in the automatic closing device 20' according to the present invention is a spring coupling part to which one side of the pair of springs 500 is coupled, as in the conventional fixing member 100.

111 and the moving member sliding portion 121 is formed on both sides and the moving pin guide portion 123 consisting of a straight guide portion 124 and the curved guide portion 125 is formed therein.

Unlike the conventional fixing member 100, the fixing member 100 'of the present invention has a binding groove 140 formed at the end of the linear guide portion 124 of the moving pin guide portion 123 (FIG. 14). home

140 is for facilitating the fastening of the moving pin 400 ', the position of which is the end of the spring coupling portion 111 of the straight guide portion 124, that is, the end of the moving pin 400' The slide is formed at a position moved in the direction of the spring coupling portion 111 (inner direction) than the position where the slide is located at the maximum retracted position, but is formed in communication with the linear guide portion 124 and the size of the moving pin 400 The guide protrusion 410 of the) is formed slightly larger than the guide protrusion 410 of the moving pin 400 'so that it can be easily inserted vertically.

It may be formed slightly smaller than the guide projection of the 400 '. In this case, the moving pin 400' is slightly inclined so that it can be easily inserted. Since it is formed at a position moved inward than the position where it is located when in the position, it does not occur that the moving pin 400 'is pulled out through the binding groove 140 during the operation of the automatic closing device 20'. .

The moving pin 400 ′ according to the present invention has a guide protrusion 410 on one side and a support pillar 430 on the other side and a support plate 420 on the middle thereof, similar to the conventional moving pin 400.

Further, a reinforcing part 440 is formed at the lower end of the supporting column 430 of the moving pin (FIG. 13). The reinforcing part 440 has the supporting column 430 of the groove 211 of the moving member 200 '. Moving member inserted into

It serves to prevent the lower end of the support column 430 by the impact force during the reciprocating movement along the moving pin guide portion 123 of the fixing member 100 'with the (200').

On the other hand, the fixing member (100 ') the reinforcement portion along the circumference of the moving pin guide portion 123

A receiving groove 145 having a depth greater than the height of 440 is formed (FIG. 14). The receiving groove 145 is accommodated by the support plate 420 of the moving pin 400 ′, and thus the moving pin 400. ') Is at least lower than the height of the reinforcement portion 440 is positioned so that the reinforcement portion 440 is in contact with the inner surface of the moving member (200') to prevent the smooth reciprocating movement of the moving pin (400 ') Does not happen.

In addition, the reinforcing plate portion 150 is formed in the fixing member 100 'in the end direction in which the spring engaging portion 111 of the fixing member 100' is located (FIG. 14). As shown, when the moving member 200 'is fixed to the fixing member 100', it is preferable to have a height so as to be horizontal with the plate portion 210. The reinforcing plate portion 150 is an automatic closing device.

The durability of the automatic closing device 20 'is further increased by allowing the fixing member 100' to absorb to some extent the impact force applied during the operation of the 20 '.

Rail passages 152 and 218 are formed at both sides of the reinforcing plate portion 150 of the fixing member 100 ′ and the plate portion 210 of the moving member 200 ′ according to the present invention.

152 and 218 are formed to be slightly deeper than the height of the cutout 750 of the above-described inner movable rail 700. Therefore, when using the automatic closing device 20 'according to the present invention, the inner movable rail

Even if the cutout 750 is not formed in the 700, the automatic closing device 20 ′ operates smoothly, and furthermore, the slide can be smoothly drawn even when the slide is pulled out close to the maximum drawing length.

In the above, the present invention has been described in detail with reference to the exemplary embodiments illustrated in the accompanying drawings, but it will be apparent to those skilled in the art that various modifications are possible. For example, the shock absorbing part 213 formed in the conventional moving member 200 may be used. Although not formed in the moving member 200 'of the illustrated embodiment, such a shock absorbing portion 213 may be formed in the moving member 200'.

 According to the present invention, the durability of the movable pin is greatly increased and the attachment of the movable pin to the fixing member becomes easy. Also, the durability of the automatic closing device itself is greatly increased due to the durability of the movable pin and the durability of the fixing member. The withdrawal proceeds smoothly even when the moving rail is withdrawn close to its maximum withdrawal length.

Claims (4)

A pair of springs 500; The spring coupling part 111 and the movable member sliding part 121 to which one side of the spring 500 is coupled are formed at both sides, and a moving pin guide part including a straight guide part 124 and a curved guide part 125. Fixed member 100 is formed therein (123); Plate-shaped portion 210, the groove 210 is formed in the central portion, the slide groove 222 is formed on both sides of the plate-shaped portion 210 and coupled to the movable member sliding portion 121, and the slide groove 222 A movable member 200 formed on both sides of the spring member including a spring coupler 212 coupled to the other side of the spring 500 and reciprocating along the movable member slide 121 of the fixed member 100; A moving pin having a support column 430 inserted into the groove 210 of the moving member 200 and moving along the moving pin guide part 123 of the fixing member 100 integrally with the moving member 200. 400; and Removable pin guide groove 350 to be coupled to the removable pin 400, removable, and the binding body 330 is coupled to the binding projection 710 of the inner movable rail 700 is formed into a rectangular body portion. Consisting of a moving pin guide; The moving pin guide is fixed to the binding protrusion 710 of the inner moving rail 700 of the slide to move along the inner moving rail 700, and the fixing member of the fixed rail 800 of the slide to correspond to the moving pin guide. In the automatic closing device that is fixed at one end and automatically draws the drawer completely without the user drawing the drawer completely, Durable automatic closure device, characterized in that the binding groove 140 to facilitate the moving pin is formed at the end of the linear guide portion 124 of the moving pin guide portion 123 of the fixing member. According to claim 1, Reinforcement portion 440 is formed at the lower end of the support pillar 430 of the moving pin, the depth greater than the height of the reinforcement portion 440 along the circumference of the moving pin guide portion 123 of the fixing member Durable improved automatic closing device, characterized in that the receiving groove 145 is formed. According to claim 1, Durable automatic closure device, characterized in that the reinforcing plate portion 150 is formed in the end direction in which the spring engaging portion 111 of the fixing member is located on the fixing member. According to claim 4, Rail passages (152; 218) to facilitate the slide of the inner movable rail 700 is formed on both sides of each of the reinforcing plate portion 150 of the fixing member and the plate portion 210 of the moving member Durable automatic closing device characterized by.

Images