Dragging device and manufacturing method thereof

Abstract

The present disclosure provides a pulling device capable of stretching a spring through a constituent member of the pulling device without using a dedicated jig. A pulling device is provided with: an elongated cover member (2); a slider (3) capable of moving in the longitudinal direction within the cover member (2); and a spring for applying a biasing force to the slider (3), one end of the spring being connected to the slider (3), and the other end of the spring being connected to the spring locking member (7). The spring locking member (7) can enter the covering member (2) and move in the length direction in the covering member (2). The spring locking member (7) is held at the end (2b) of the cover member (2) using a holding member (8).

Description

Technical Field

[0001] This invention relates to a pulling device for pulling a sliding door to a closed position and / or an open position. Background Technology

[0002] A known pull device is a sliding door that pulls it to a closed position and / or an open position (see Patent Document 1). When the user closes the sliding door from the open position to a predetermined position, the pull device automatically pulls the door to the closed position. Among pull devices, bidirectional pull devices that pull the sliding door not only to the closed position but also to the open position are becoming mainstream. In bidirectional pull devices, when the user opens the sliding door from the closed position to a predetermined position, the pull device automatically pulls the door to the open position and opens it.

[0003] The pull-out device includes: an elongated cover member; a slider that can move along its length within the cover member; and a spring that applies force to the slider. One end of the spring is connected to the slider, and the other end of the spring is connected to a cover member mounted at the end of the cover member along its length. When the pull-out door, which is in the open position, is closed to a predetermined position, the slider engages a trigger, becomes movable, and moves within the cover member via the spring. The pull-out door closes automatically due to the movement of the slider. In the case of a two-way pull-out device, two sliders and two springs are provided.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: International Publication No. 2020 / 012780

[0007] In assembling conventional pull-out devices, a special clamp is used to pull the other end of the spring out of the cover member, connect the other end of the spring to the cover member, and then assemble the cover member onto the end of the cover member. In conventional pull-out devices, there is a problem that a special clamp is required to pull the spring out of the cover member. Summary of the Invention

[0008] The present invention was made in view of the above-mentioned problems, and its object is to provide a pulling device and a method thereof that can pull a spring by means of the components of the pulling device without using a special clamp.

[0009] To solve the above problems, the present invention is a pulling device comprising: an elongated covering member; a slider movable along the length direction within the covering member; and a spring applying a force to the slider. In the pulling device, one end of the spring is connected to the slider, and the other end of the spring is connected to a spring retaining member. The spring retaining member can enter the covering member and move along the length direction within the covering member. A retaining member holds the spring retaining member at the end of the covering member.

[0010] Another aspect of the present invention is a method for manufacturing a pulling device, comprising the following steps: connecting one end of a spring that applies force to a slider to the slider, and connecting the other end of the spring to a spring retaining member; placing the spring retaining member, the spring, and the slider into an elongated covering member; and moving the spring retaining member into the covering member along the length direction, and using a retaining member to hold the spring retaining member at the end of the covering member.

[0011] In this invention, the pulling device can be either a bidirectional pulling device or a unidirectional pulling device.

[0012] Invention Effects

[0013] According to the present invention, a spring can be stretched without the use of a special clamp by means of a spring locking member of a pulling device. Attached Figure Description

[0014] Figure 1 This is a perspective view of the pulling device in this embodiment.

[0015] Figure 2 It is an exploded 3D view of the pulling device.

[0016] Figure 3 This is a cross-sectional view of the pulling device.

[0017] Figure 4 This is a side view of the pulling device that enters the guide rail.

[0018] Figure 5 This diagram illustrates the process of placing the slider, buffer seat, spring retaining member, and cover member onto the assembly fixture.

[0019] Figure 6 This is a diagram showing the process of connecting the springs.

[0020] Figure 7 This diagram shows the process of placing the spring-locking component, the spring, and the slider into the covering component.

[0021] Figure 8 This diagram illustrates the process of using a retaining member to hold the spring-locking member at the end of the covering member.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1: Pulling device; 2: Covering component; 2b, 2c: Ends of the covering component; 3, 4: Slider; 5, 6: Spring; 7: Spring locking component; 8: Holding component; 8a: Insertion part; 9: Cover component. Detailed Implementation

[0024] Hereinafter, with reference to the accompanying drawings, a pulling device and its manufacturing method according to embodiments of the present invention will be described in detail. It should be noted that the pulling device and its manufacturing method of the present invention can be embodied in various ways and are not limited to the embodiments described in this specification. These embodiments are provided to enable those skilled in the art to fully understand the invention by making the specification sufficiently transparent.

[0025] like Figure 1 and Figure 2 As shown, a slider 3 is provided within the elongated covering member 2, movable along the length of the covering member 2, and a spring 5 is provided to apply force to the slider 3. One end of the spring 5 is connected to the slider 3, and the other end of the spring 5 is connected to a spring retaining member 7. The spring retaining member 7 can enter the covering member 2 and move along the length of the covering member 2. The spring retaining member 7 is held at the end 2b of the covering member 2 by a retaining member 8.

[0026] The pulling device 1 in this embodiment is a bidirectional pulling device, comprising two sliders 3 and 4 and two springs 5 ​​and 6. One of the two sliders 3 and 4 is slider 3, and one of the two springs 5 ​​and 6 is spring 5. One end of the other spring 6 is connected to the other slider 4, and the other end of the other spring 6 is connected to the cover member 9 inserted into the end 2c of the cover member 2.

[0027] The composition of each part of the pulling device 1 will be described in detail. The cover member 2 has an approximately U-shaped cross-section that opens upwards and is slender in the opening and closing direction of the sliding door. Triggering elements 11 and 12 (see reference) are inserted into the opening 2a extending along the cover member 2. Figure 4 A retaining member 8 with an insertion portion 8a is inserted into end 2b of the covering member 2. A spring-loaded retaining member 7 is hooked onto the retaining member 8. The spring-loaded retaining member 7 is fastened to the covering member 2 using screws 13. A cover member 9 with an insertion portion 9a is inserted into end 2c of the covering member 2. The cover member 9 is fastened to the covering member 2 using screws 14. The covering member 2 can be manufactured by sheet metal processing or by extrusion molding of resin or metal.

[0028] like Figure 3As shown, the hook 24 of the slider 3 can engage with the recess 9b of the cover member 9 inserted into the end 2c of the cover member 2. With the hook 24 engaged with the recess 9b, the movement of the slider 3 is restricted, and the slider 3 remains in the standby position. When the sliding door, which is in the closed position, is opened to the designated position, the slider 3 will engage the trigger 11 (see reference 11) located on the door tail side of the frame. Figure 4 Therefore, the hook 24 disengages from the recess 9b, and the slider 3 becomes movable. The slider 3 moves relative to the covering member 2 along its length by the force of the spring 5. As the slider 3 moves relative to the covering member 2, the sliding door is automatically pulled to the open position.

[0029] Similarly, the hook 24 of slider 4 can engage with the recess 7b of the spring-loaded retaining member 7 held at the end 2b of the covering member 2. With the hook 24 engaged with the recess 7b, the movement of slider 4 is restricted, and slider 4 remains in the standby position. When the sliding door, which is in the open position, is closed to the designated position, slider 4 engages the trigger 12 (see reference 12) located on the door front side of the frame. Figure 4 Therefore, the hook 24 disengages from the recess 7b, and the slider 4 becomes movable. The slider 4 moves relative to the cover member 2 along its length by the force of the spring 6. With the relative movement of the slider 4, the sliding door is automatically pulled to the closed position. It should be noted that the slider 4 can also be used to pull the sliding door to the open position, and the slider 3 can be used to pull the sliding door to the closed position.

[0030] The structure of slider 3 will be described in detail. For example... Figure 3 As shown, the slider 3 includes: a slider body 21 connected to the spring 5; a hook 24 supported on the slider body 21 in a swinging manner; a control member 23 for controlling the swinging of the hook 24; and a braking adjustment spring 22 sandwiched between the slider body 21 and the control member 23. As described above, the hook 24 can engage with the recess 9b provided in the cover member 9. Figure 3 The image shows the state before hook 24 engages with recess 9b. When slider 3 is moved to... Figure 3 In the standby position shown, hook 24 swings clockwise due to the spring force of braking adjustment spring 22, and hook 24 engages with recess 9b. Control member 23 is configured such that the engagement of hook 24 with recess 9b will not accidentally disengage. With hook 24 engaged with recess 9b, control member 23 is positioned above hook 24 to prevent hook 24 from swinging counterclockwise.

[0031] When the sliding door moves to the designated position in the opening direction, trigger 11 (refer to...) Figure 4 Pressing the control member 23 presses the hook 24, causing the hook 24 to swing counterclockwise and disengage from the recess 9b of the cover member 9. Simultaneously, the trigger member 11 is captured between the hook 24 and the control member 23.

[0032] Slider 4 also has the same features as slider 3: a slider body 21 connected to spring 6; a hook 24 supported on slider body 21 in a swinging manner; a control member 23 controlling the swinging of hook 24; and a braking adjustment spring 22 sandwiched between slider body 21 and control member 23. Since the structure of slider 4 is the same as that of slider 3, the same reference numerals are used and its description is omitted.

[0033] It should be noted that the configuration of sliders 3 and 4 is not limited to the above configuration. For example, the control component 23 and the brake adjustment spring 22 can be omitted, a guide groove can be formed on the cover component 9 or the cover component 2, and a protrusion embedded in the guide groove can be formed on the hook 24, thereby controlling the posture of the hook 24 through the guide groove.

[0034] like Figure 2 As shown, two linear buffers 15 and 16 are connected in series between slider 3 and slider 4. When a trigger 11 is captured (refer to...), Figure 4 When slider 3 moves, the two linear buffers 15 and 16 retract simultaneously to brake the movement of slider 3. Furthermore, when trigger 12 (see reference) is engaged... Figure 4 When slider 4 moves, the two linear buffers 15 and 16 retract simultaneously, braking the movement of slider 4. The cylinders of linear buffer 15 and linear buffer 16 are supported on buffer seats 17 that are slidably disposed within the cover member 2. The rod of linear buffer 16 is connected to slider 3. The rod of linear buffer 15 is connected to slider 4.

[0035] like Figure 2 As shown, the longitudinal section shape of the spring locking member 7 is approximately the same as the longitudinal section shape of the interior of the cover member 2, and the spring locking member 7 can slide along the length direction within the cover member 2. A locking part 7a is formed in the spring locking member 7 for connecting the other end of the spring 5. The spring locking member 7 is separate from the slider 4.

[0036] The spring-loaded retaining member 7 is hooked onto the retaining member 8, which is inserted into the end 2b of the covering member 2. A hook-shaped portion 7c is formed on the spring-loaded retaining member 7 to engage with the retaining member 8. The spring-loaded retaining member 7 is fastened to the covering member 2 by a screw 13. A retraction groove 7d is formed on the upper surface of the spring-loaded retaining member 7 to avoid interference with the trigger member 12.

[0037] The retaining member 8 is inserted into the end 2b of the covering member 2. The retaining member 8 has an insertion portion 8a that inserts into the covering member 2, and a protrusion 8b that abuts against the end face 2b1 of the covering member 2. Furthermore, the retaining member 8 has a complementary hook portion 8c that engages with the hook-shaped hook portion 7c of the spring-loaded retaining member 7. A screw 19 is used to fasten a slide rail 18 for suspending the sliding door onto the retaining member 8. The slide rail 18 includes a roller traveler 18a and a bracket 18b mounted on the roller traveler 18a. The sliding door is mounted on this bracket 18b.

[0038] The cover member 9 is inserted into the end 2c of the cover member 2. The cover member 9 has an insertion portion 9a for insertion into the cover member 2, and a protrusion 9c that abuts against the end face 2c1 of the cover member 2. The cover member 9 is fastened to the cover member 2 by screws 14. A pair of left and right rollers 20 are fitted onto the cover member 9.

[0039] like Figure 4 As shown, the pulling device 1 is inserted into the guide rail 27 mounted on the frame. The sliding door is suspended on the slide rail 18. When the sliding door is opened or closed, the pulling device 1 moves within the guide rail 27.

[0040] The manufacturing method of the pulling device 1 in this embodiment will be described. First, as Figure 2 As shown, the cylinder portions of linear buffers 15 and 16 are embedded into the buffer seat 17, the rod portion of linear buffer 16 is connected to slider 3, and the rod portion of linear buffer 15 is connected to slider 4. Next, as... Figure 5 As shown, the two sliders 3 and 4 and the buffer seat 17 are reversed and brought closer together, and then placed on the assembly fixture 28. A cover member 9 and a spring-loaded retaining member 7 are also provided on the assembly fixture 28. The assembly fixture 28 has a slider positioning part 28a, a hook positioning part 28b, a cover member positioning part 28c, and a spring-loaded retaining member positioning part 28d. The assembly fixture 28 can be divided into two parts.

[0041] Next, as Figure 6 As shown, one end of spring 5 is connected to slider 3, and the other end of spring 5 is connected to spring locking member 7. Similarly, one end of spring 6 is connected to slider 4, and the other end of spring 6 is connected to cover member 9.

[0042] Next, as Figure 7 As shown, the cover member 2 is slid to insert the spring locking member 7, springs 5 ​​and 6, sliders 3 and 4 into the cover member 2. The cover member 2 is slid until its end face 2c1 abuts against the protrusion 9c of the cover member 9. Then, screw 14 (see reference) is used. Figure 8 Secure the cover component 9 to the cover component 2.

[0043] Next, as Figure 8As shown, reverse the pulling device 1 vertically to remove the assembly clamp 28. Then, using the opening 2a of the cover member 2, move the spring-locking member 7 inside the cover member 2, so that the hook 7c of the spring-locking member 7 protrudes from the end 2b of the cover member 2. Next, insert the retaining member 8 into the spring-locking member 7, so that the hook 8c of the retaining member 8 engages with the hook 7c of the spring-locking member 7. If you remove your hand from the retaining member 8, the retaining member 8 and the spring-locking member 7 are inserted into the cover member 2 by the tension of the spring 5. Next, use the screw 13 to fasten the spring-locking member 7 to the cover member 2. It should be noted that the braking adjustment springs 22 of the sliders 3 and 4 can be assembled at this stage or pre-assembled. Finally, if the slider 3 is moved toward the cover member 9 to the standby position, the hook 24 of the slider 3 engages with the recess 9b of the cover member 9. Similarly, if the slider 4 is moved toward the spring retaining member 7 to the standby position, the hook 24 of the slider 4 engages with the recess 7b of the spring retaining member 7.

[0044] The pulling device 1 and its manufacturing method according to this embodiment have the following effects: The spring 5 can be stretched by the spring retaining member 7, a component of the pulling device 1. In addition, the amount of stretching of the spring 5 is small, so the assembly of the pulling device 1 is easy.

[0045] The spring-locking member 7 is hooked onto the retaining member 8, which is inserted into the end 2b of the covering member 2, so that the retaining member 8 can be inserted into the end 2b of the covering member 2 by the force of the spring 5.

[0046] The pulling device 1 in this embodiment is not particularly limited, but it is effective for bidirectional pulling devices.

[0047] It should be noted that in the above embodiment, the retaining member 8 inserted into the end 2b of the covering member 2 is used to retain the spring locking member 7 at the end 2b of the covering member 2, but a retaining member such as a pin that passes through the covering member 2 and the spring locking member 7 can also be used to retain the spring locking member 7 at the end 2b of the covering member 2.

Claims

1. A pulling device, comprising: Slender covering components; A slider that can move along its length within the covering member; and The spring applies a force to the slider. In the pulling device, One end of the spring is connected to the slider, and the other end of the spring is connected to the spring locking member. The spring-loaded locking member can enter the covering member and move along the length direction within the covering member. The retaining member is used to hold the spring-locking member at the end of the cover member.

2. The pulling device according to claim 1, characterized in that, The spring-locking member is hooked onto the retaining member, the retaining member having an insertion portion that inserts into the end of the covering member.

3. The pulling device according to claim 1 or 2, characterized in that, The pulling device is a bidirectional pulling device equipped with two sliders and two springs. One of the two sliders is the slider. One of the two springs is the spring mentioned above. One end of the other side of the two springs is connected to the other side of the two sliders, and the other end of the other side of the two springs is connected to the cover member, which has an insertion portion that is inserted into the end of the cover member.

4. A method for manufacturing a pulling device, comprising the following steps: One end of the spring that applies force to the slider is connected to the slider, and the other end of the spring is connected to the spring locking member; The spring-locking member, the spring, and the slider are placed into the elongated covering member; and The spring-locking member that enters the cover member is moved along the length direction, and the spring-locking member is held at the end of the cover member by a retaining member.

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