KR20070031608A - Self-closing means for a slide - Google Patents

Abstract

 The present invention relates to an automatic closing device for a slide composed of different materials.

 Slide automatic closing device according to the present invention is a pair of tapered spring; a moving pin; a moving pin guide having a moving pin guide groove; a spring coupling portion coupled to one side of the tapered spring, a U-shaped slide groove, and moving A moving member having a groove into which a pin is inserted; And a fixing member having a moving pin guide part consisting of a straight guide part and a curved guide part, and a spring engaging part coupled to the other side of the tapered spring, wherein the moving pin guide is fastened to the moving rail by a first fastening means. The fixing member is moved along the moving rail, and the fixing member is attached to the fixing rail by the second fastening means, and the movable rail automatically moves to the fully closed position by the elastic contraction force by the spring. At this time, the fixing member is made of polyamide (Polyamid). 66), and the movable member is made of polyoxymethylene resin.

 According to the present invention, there is no sticking phenomenon in the automatic closing device even when a heavy object is put in the storage unit and the drawing unit is quickly drawn in or taken out. Thus, the automatic closing device can operate smoothly in any use state. do.

Automatic closing device, sticking phenomenon, abrasion, friction, different materials

Description

Self-closing means for a slide}

       1 to 3 is a perspective view of a moving pin guide, a moving member, a moving pin constituting an automatic closing device for a slide.

4 is a view showing that the moving pin and the moving member are in the retracted state coupled to the fixing member.

Figure 5 is a view showing that the moving pin and the moving member in the pulled out state coupled to the fixing member.

6 is a view showing a state in which the moving pin guide is fastened to the movable member and the fixed member is fastened to the fixed rail but separated from each other.

7 is a view showing a state in which the moving pin guide is coupled with the moving pin.

8 is a view showing a state in which the moving pin guide is moved to the retracted position by the elastic contracting force by the spring in combination with the moving pin.

9 is a perspective view of a three-member slide with automatic closing device attached.

 The present invention relates to an automatic closing device for a slide, and more particularly, to an automatic closing device for a slide composed of different materials.

The slide is typically composed of a fixed rail and one moving rail (single fold type) or a fixed rail and two moving rails (two fold type), and the moving rail (s) are linked by a transfer bearing and drawn into the fixed rail or It can be pulled out from the fixed rail.

The slides configured as described above are mounted in pairs so as to be symmetrical with each other on the wall of the inner space of the main body such as the cabinet and the cabinet where the drawer is located, and the sliding part is moved to the closed position and the open position in a sliding manner with respect to the main body. In the past, the force was applied to the housing until the housing was completely closed, and when the housing was closed with too much force, the housing was inconvenient to reopen due to the impact repulsion with the main body.

In order to solve this problem, the applicant has devised a "automatic closing device for slides" (patent application No. 2005-0047588) comprising a moving pin, a moving pin guide, a moving member and a fixing member. This automatic closing device is very useful because the housing is automatically sealed even if no force is applied to the housing until the housing is completely closed, and the housing is prevented from reopening with impact repulsion even if the housing is closed with too much force.

However, the automatic closing device may cause abrasion due to friction between the movable member and the fixed member when the movable member moves on the fixed member, and in severe cases, that is, a heavy object is contained in the receiving portion and a retracting portion is drawn in or removed at a relatively high speed. In this case, abrasion and fusion occurs while the moving member moves on the fixing member, and sticking occurs between the fixing member and the moving member. The replacement is not only inconvenient for the user, but it is also very cumbersome to replace.

An object of the present invention is to prevent a sticking phenomenon from occurring in an automatic closing device. That is, an object of the present invention is to provide an automatic closing device in which a sticking phenomenon does not occur.

 Slide automatic closing device according to the present invention is a pair of tapered spring; a moving pin; a moving pin guide having a moving pin guide groove; a spring coupling portion coupled to one side of the tapered spring, a U-shaped slide groove, and moving A moving member having a groove into which a pin is inserted; And a fixing member having a moving pin guide part consisting of a straight guide part and a curved guide part, and a spring engaging part coupled to the other side of the tapered spring, wherein the moving pin guide is fastened to the moving rail by a first fastening means. Moving along the moving rail, the fixing member is fastened to the fixed rail by the second fastening means, the moving rail automatically moves to the fully closed position by the elastic contraction force by the spring.

According to the present invention, the fixing member and the moving member of the automatic closing device for a slide are made of different materials.

At this time, it is preferable that the fixing member is made of polyamide (Polyamid) 66 and the moving member is made of polyoxymethylene resin.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

As shown in Fig. 9, the automatic closing device is a member used for a slide for moving the accommodating portion 960 such as a drawer to the closed position and the open position in a sliding manner with respect to the main body (not shown). The slide 10 is installed by attaching the 800 to a proper position of the main body, and the accommodating part 960 is fastened to the inner movable rail 700 by a fixing means such as a fastening groove 720. Thus, the accommodating part 960 is provided. Movement of the inner moving rail 700 and / or the intermediate moving rail 900 causes a sliding movement. In the fully closed position of the housing 960, the slide 10 is fully folded (the moving rails are all retracted). ) And the slide 10 is fully extended (all the moving rails are pulled out) in the fully open position of the housing 960.

 The slide automatic closing device 20 is installed at the rear end of the fixed rail 800. A rail groove for receiving a portion of the automatic closing device 20 in the longitudinal direction at the last end of the intermediate moving rail 900. 910 is formed.

 The automatic closing device to which the present invention is applied is the same as the "automatic closing device for slides" filed in the applicant's patent application No. 2005-0047588, and its basic configuration and operation relationship are exactly the same. The elements constituting the automatic closing device will be described below.

 Automatic closing device to which the present invention is applied, as shown in Figures 1 to 5, a moving pin guide 300 having a moving pin guide groove 350, the moving member 200, the moving pin 400, a pair The tapered spring 500, and the fixing member 100 is composed of.

 The moving pin 400 has a cylindrical cross section. The moving pin guide 300 has a plate shape, and a spring coupling part 212 to which one side of the pair of tapered springs 500 couples to form a U-shaped shape. The sliding groove 222 and the groove 211 into which the moving pin 400 is inserted. The fixing member 100 includes a moving pin guide part 123 consisting of a straight guide part 124 and a curved guide part 125. ) And both sides have a spring coupling portion 111 to which the other side of the pair of tapered springs 500 are coupled.

The sliding groove 222 of the moving member 200 is coupled to both sides of the fixing member 100, the moving pin 400 is coupled to the moving pin guide portion 123 of the fixing member 100, but the moving pin ( The pillar portion of 400 is coupled to penetrate the groove 211 of the movable member 200 so that the movable pin 400 and the movable member 200 slide the movable pin guide portion 123 of the fixing member 100 integrally with each other. It's designed to move.

4 and 5 is a state in which the moving pin 400, the moving member 200, and the pair of tapered springs 500 of the automatic closing device are coupled to the fixing member 100, and the retracted state (the moving rail of the slide is fixed). The moving pin 400 and the moving member in a state in which the rail is drawn into the main body, that is, a state in which the housing part is drawn into the main body, and a drawout state (a state in which the moving rail of the slide is drawn out of the fixed rail, that is, the state in which the housing part is pulled out of the main body). In the retracted state, the moving pin 400 sliding the moving pin guide part 123 integrally with the moving member 200 is positioned at one end of the linear guide part 124, and is drawn out. In the moving pin 400 is in a state hanging on the curved guide portion (125).

Operation of the automatic closing device to which the present invention is applied will be described with reference to FIGS. 6 is a state in which the moving rail 700 is drawn out, i.e., before the housing part (located on the moving rail of the slide and not shown in the drawing for convenience) moves into the main body, the moving pin guide 300 moves. 400 is a view showing a state before coupling. At this time, the moving pin guide 300 is bound to the lower side of the moving rail 700 so that the moving member 100 is visible and the moving pin guide 300 is not visible. In this case, for convenience, the moving pin guide 300 is illustrated as a solid line, and the same reason is shown as a solid line in FIGS. 7 and 8.

 The moving pin guide 300 is attached to the moving rail 700 by the first fastening means 710 (see FIG. 6) and moves along the moving rail, and the fixing member 100 is connected to the second fastening means 112 and 131 ( 7) is fixed to the fixed rail 800.

7 is a view showing a state in which the moving pin guide 300 is coupled with the moving pin 400 in the drawn state, wherein the moving pin guide groove 350 of the moving pin guide 300 is the fixing member 100. The moving pin 400 is coupled to the moving pin 400 hung on the curved guide part 125 of the moving part from the curved guide part 125. This detachment allows the user to move the drawn housing part to a closed position with respect to the main body. When the seal is moved by applying a force, the storage portion is easily caused by the inertial force that moves.

 When the moving pin guide 300 is coupled to the moving pin 400 hanging on the curved guide portion 125 of the fixing member 100, and the moving pin is separated from the curved guide portion 125, the fixing member 100 is fixed. The elastic contraction force of the springs 500 on both sides of the spring pulls the moving pin 400 fitted into the moving member 200 and the groove 211 of the moving member 200, and is coupled with the moving pin 400. The moving pin guide 300 is pulled together. FIG. 8 is a view illustrating a state in which the moving pin guide 300 moves to a fully retracted state by combining with the moving pin 400.

The withdrawal of the housing takes place in the reverse order of the above process. When the withdrawal of the housing, that is, withdrawal of the moving rail 700, the moving pin guide 300 in the state of FIG. 8 is moved to the withdrawal position while being coupled with the moving pin 400. In the state of Figure 7, the moving pin 400 is released from the moving pin guide 300 while being caught by the curved guide portion 125 of the fixing member 100. The continuous movement of the moving rail 700, As shown in FIG. 6, the moving pin guide 300 and the fixing member 100 are completely separated from each other and then moved to the maximum withdrawal position.

As such, the automatic closing device automatically moves the housing located on the moving rail 700 to the closed position, and the housing is automatically sealed even if the user does not apply the force to the housing until the user completely closes the housing. Even when the force is closed, the housing is prevented from reopening by the impact repulsion force.

The moving pin 400, the moving pin guide 300, the moving member 200, and the fixing member 100 constituting the automatic closing device are generally made by injection molding using polyamide (Polymid) 66. Polyamide 66 is a type of industrial plastic, currently marketed under the name TECHNYL 2710ST BLK by RHODIAPOLYAMID. The material is black and has a melting point of 260 ° C and a yield strength of 55 MPa ( Physical properties of ASTM D 638).

When the automatic closing device is made of Polyamide 66 and used, the wear phenomenon caused by friction between the movable member and the fixed member occurs when the movable member 200 moves on the fixed member 100. The phenomenon does not cause a problem in the use of the automatic closing device. However, when a heavy object is contained in the storage unit and the storage unit is drawn in or removed at a relatively high speed, the movable member 200 moves on the fixing member 100. While abrasion and fusion occurs, sticking occurs between the fixing member and the moving member. When the sticking occurs, the automatic closing device cannot be used.

Applicant, while studying a variety of ways to prevent the sticking phenomenon occurs in the automatic closing device, when the moving member and the fixing member is made of different materials, it is realized that the sticking phenomenon does not occur, leading to the present invention It is.

According to the applicant's experiment, when the fixing member 100 is made of polyamide (Polymid) 66 as in the prior art, and the moving member 200 is made of polyoxymethylene (Polyoxymethylene) resin, a heavy object is stored in the storage unit. The sticking phenomenon does not occur at all even when the container is inserted or removed at a high speed.

 Polyoxymethylene (Polyoxymethylene) resin is also commonly referred to as polyacetal (Polyacetal) resin, currently marketed by Korea Engineering Plastics (KEPITAL) under the product name KEPITAL FU22. This material is used for injection and extrusion molding It has a melting point of 165 ° C and a yield strength of 42.5 MPa (ASTM D 638). It can also produce various colors.

 When the fixing member 100 is made of Polyamide 66 and the moving member 200 is made of Polyoxymethylene resin, the exact reason why the sticking phenomenon does not occur is not clear. It is presumed that the friction resistance between the movable member and the fixed member is drastically reduced when the two members and the moving member are composed of polyamide 66. In particular, the fixing member 100 is made of poly When composed of amide (Polyamid) 66, the moving member 200 is composed of polyoxymethylene (Polyoxymethylene) resin, not only the sticking phenomenon occurs, but also the fixing member 100 composed of Polyamide (Polyamid) 66 ) Is black, and when the movable member 200 made of polyoxymethylene resin is made of bright color, for example, white, the movable member is placed on the fixed member. Visually it showed that a fresh impression when you move.

According to the present invention, there is no sticking phenomenon in the automatic closing device even when a heavy object is put in the storage unit and the drawing unit is quickly drawn in or taken out. Thus, the automatic closing device can operate smoothly in any use state. do.

Claims (2)

  A pair of tapered springs 500; a moving pin 400; a moving pin guide 300 having a moving pin guide groove 350; a spring coupling portion 212 to which one side of the tapered spring 500 is coupled, U A moving member 200 having a sliding groove 222 having a shape of a shape and a groove 211 into which the moving pin 400 is inserted; And a fixing member 100 having a moving pin guide part 123 composed of a straight guide part 124 and a curved guide part 125, and a spring coupling part 111 to which the other side of the tapered spring 500 is coupled. Consists of the moving pin guide 300 is coupled to the moving rail 700 by the first fastening means 710 to move along the moving rail, the fixing member 100 to the second fastening means (112,131) In the automatic closing device for the slide is fastened to the fixed rail 800, the movable rail 700 is automatically moved to a completely closed position by the elastic contraction force by the spring 500, the fixing member 100 and the moving member Automatic closing device for a slide, characterized in that 200 is made of different materials. The automatic closing device for a slide according to claim 1, wherein the fixing member (100) is made of Polyamide (66), and the moving member (200) is made of Polyoxymethylene resin.

Images