Guide pulling wheel set structure

Abstract

The invention relates to a guide pulling wheel set structure which is used for solving the problem that an existing pull-and-fold door is not smooth in pulling. The body is provided with a lower surface and an upper surface which are opposite to each other, the lower surface is provided with a combination part extending downwards, the upper surface is provided with a supporting seat, the supporting seat is provided with a shaft, the two ends of the shaft are respectively used for supporting a pulley to rotate in a positioning manner, the body is further provided with a groove hole penetrating through the lower surface and the upper surface, and the groove hole is communicated with the groove hole. Two sides of the slotted hole are respectively provided with at least one shaft hole; and the abutting wheel is provided with a center hole for a shaft rod to penetrate through, the shaft rod is combined in the at least one shaft hole in the two sides of the slotted hole so that the abutting wheel can rotate in the slotted hole in a positioning mode according to the shaft rod, and the peripheral face of the abutting wheel protrudes out of the upper surface of the body. Therefore, the guiding and pulling wheel group structure has the effect of smoothly pulling the sliding door.

Description

Technical Field

[0001] The present invention relates to the technical field of folding doors, and in particular to a guide pull wheel assembly structure used for guiding a pull tab of a folding door. Background Art

[0002] See also Figure 1 As shown, this is a conventional folding door structure, consisting of a pull tab 91 connected to one end of several folding tabs (not shown). A guide pull wheel assembly 92 is provided on top of the pull tab 91. The guide pull wheel assembly 92 has two rotatable wheels 93, which slide within two guide grooves 95 of a guide rail 94. The pull tab 91 can pull the folding tabs to expand, thereby dividing an open space into two independent spaces, or can fold the folding tabs to merge the two separated independent spaces into one open space.

[0003] See also Figure 2 As shown, when the pull tab 91 is pulled, the uneven pulling force will cause the guide wheel assembly 92 to deflect (as shown by the dotted line). In particular, for a large pull tab 91 with a longer length, the deflection of the pull tab 91 will be more serious. In this way, the top of the pull tab 91 will deflect and collide with the guide rail 94, which will cause the pull tab 91 to move unsmoothly and may even become stuck and unable to move. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a guide pulley assembly structure. When the guide pulley assembly is moving, the guide pulley assembly can abut against the guide rail through an auxiliary wheel, so that the guide pull piece can form a smooth pulling movement.

[0005] The directions or similar terms described throughout the present invention, such as "front", "back", "left", "right", "upper (top)", "lower (bottom)", "inner", "outer", "side", etc., are mainly referred to the directions of the accompanying drawings. Each direction or similar terms are only used to assist in explaining and understanding the various embodiments of the present invention and are not intended to limit the present invention.

[0006] The use of the quantifiers “a” or “an” in the elements and components described throughout the present invention is merely for convenience and to provide a general meaning of the scope of the present invention; in the present invention, they should be interpreted as including one or at least one, and the single concept also includes the plural case, unless it is obvious that it means otherwise.

[0007] The similar terms such as "combination", "assembly" or "assembly" described throughout the present invention mainly include types such as connection that can be separated without damaging the components, or connection that makes the components inseparable. Those skilled in the art can choose according to the materials of the components to be connected or the assembly requirements.

[0008] The object of the present invention is achieved like this: A guide pulley group structure includes: a main body having a relative lower surface and upper surface, the lower surface having a joint extending downward, the upper surface having a support seat, the support seat having an axis, the two ends of the axis each being used to support a pulley for positioning and rotation, the main body also having a slot hole passing through the lower surface and the upper surface, each side of the slot hole having at least one axial hole; and an abutment wheel having a center hole for passing through an axle rod, the axle rod being combined with the at least one axial hole on both sides of the slot hole, so that the abutment wheel is positioned and rotated in the slot hole according to the axle rod, and the outer peripheral surface of the abutment wheel protrudes from the upper surface of the main body.

[0009] Preferably, the centers of the shaft holes on both sides of the slot are relatively located on the same center line. In this way, when the shaft rod is coupled to the shaft holes on both sides of the slot, the abutment wheel can be smoothly positioned and rotated according to the shaft rod in the slot.

[0010] Preferably, the body has at least one positioning hole for a screw to pass through, so that the body can be more firmly coupled to the top end of a pull tab of the folding door by the screw.

[0011] Preferably, the slotted hole has two axial holes on both sides, and the two axial holes are each in an axial seat portion. In this way, the shaft can be securely inserted into the axial seat portion.

[0012] Preferably, the shaft seat portion partially protrudes from the upper surface of the body. In this way, the body has a shaft seat portion with a relatively large thickness, so that the shaft rod can be firmly inserted into the shaft seat portion.

[0013] Preferably, the two axial holes on both sides of the slotted hole are each provided with an axial rod, and the two axial rods each have an abutting wheel. In this way, the slotted hole can have two abutting wheels, so that the two abutting wheels can be used to abut the bottom surface of the bottom plate of the guide rail.

[0014] Preferably, the two abutment wheels are separated by a distance, so that the two abutment wheels can be used to abut against the bottom surface of the base plate of the guide rail.

[0015] Preferably, when the pulley and the two abutting wheels are projected perpendicularly onto a horizontal plane, the centerline of the two pulleys is located between the two abutting wheels. In this way, when the user pulls the pull tab, the two pulleys can respectively abut the bottom surface of the base plate, preventing the pull tab from tilting in the forward direction, thereby making the pulling of the pull tab smoother.

[0016] The beneficial effects of the present invention are: By setting the abutment wheels, the two pulleys and the abutment wheels can respectively abut against the bottom surfaces of the two guide grooves and the bottom plate, which can reduce the inclination of the pull-tab toward the left and right sides and the forward direction. In particular, when the two abutment wheels are separated by a distance, the inclination of the pull-tab toward the forward direction can be further reduced, so that the pulling of the pull-tab can be smoother, and the pull-tab will not be stuck due to deflection and cannot be pulled smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is an exploded perspective view of an existing folding door pull tab and its guide pull wheel assembly.

[0018] Figure 2 The present invention is a side cross-sectional view of the combination of a pull tab and a guide pull wheel assembly of an existing folding door.

[0019] Figure 3 This is a partially exploded three-dimensional diagram of the guide pulley assembly structure of the present invention.

[0020] Figure 4 This is a side sectional view of the guide pulley assembly of the present invention used in a pull tab assembly.

[0021] Among them: 1. Main body; 1a. Lower surface; 1b. Upper surface; 11. Joint; 12. Positioning hole; 13. Screw; 14. Support seat; 15. Shaft; 16. Pulley; 17. Slot hole; 18. Shaft hole; 19. Shaft seat; 2. Abutment wheel; 21. Center hole; 22. Shaft rod; 3. Pull tab; 31. Guide rail; 32. Guide groove; 33. Bottom plate; L, Center line; S, Spacing; 91. Pull tab; 92. Guide wheel assembly; 93. Rotating wheel; 94. Guide rail; 95. Guide groove. DETAILED DESCRIPTION

[0022] Please refer to Figure 3 As shown, the present invention relates to a guide pulley assembly structure, which is composed of a main body 1 and at least one abutting wheel 2. The at least one abutting wheel 2 can be rotatably combined with the main body 1.

[0023] The body 1 has a lower surface 1a and an upper surface 1b opposite to each other. A coupling portion 11 extending downward is provided on the lower surface 1a. The coupling portion 11 can be coupled to the top of a pull tab 3 of the folding door (e.g., Figure 4 As shown), preferably, the body 1 has at least one positioning hole 12, and the positioning hole 12 can allow a screw 13 to pass through to more firmly combine the body 1 with the top end of a pull tab 3 of the folding door.

[0024] The upper surface 1 b of the main body 1 has a support base 14 , and the support base 14 has a shaft 15 . Both ends of the shaft 15 protrude from both sides of the support base 14 , so that both ends of the shaft 15 can be used to support a pulley 16 for positioning and rotation.

[0025] The body 1 further has a slot hole 17 penetrating through the lower surface la and the upper surface lb, and each side of the slot hole 17 has at least one shaft hole 18, and the shaft holes 18 on both sides of the slot hole 17 are located on the same center line L with their centers opposite to each other. In this embodiment, each side of the slot hole 17 has two shaft holes 18, and each of the two shaft holes 18 is in a shaft seat portion 19, which is preferably partially protruding on the upper surface lb of the body 1.

[0026] The abutting wheel 2 has a center hole 21, and a shaft rod 22 can be inserted into the center hole 21. The shaft rod 22 can be combined with the at least one shaft hole 18 of the body 1, so that the abutting wheel 2 can be positioned and rotated in the slot hole 17 through the shaft rod 22, and the outer circumferential surface of the abutting wheel 2 protrudes on the upper surface lb of the body 1. Preferably, the two shaft holes 18 on both sides of the slot hole 17 each have a shaft rod 22, and the two shaft rods 22 each have an abutting wheel 2. The two abutting wheels 2 are separated and have a spacing S. More preferably, when the pulley 16 and the two abutting wheels 2 are vertically projected on a horizontal plane, the center line L of the two pulleys 16 is located between the two abutting wheels 2.

[0027] Please refer to Figure 4 The abutting wheel 2 can abut against the bottom surface of a bottom plate 33 of the guide rail 31. In this way, when the user pulls the pull tab 3, the guide wheel set can abut against the two guide grooves 32 and the bottom surface of the bottom plate 33 through the two pulleys 16 and the abutting wheels 2, respectively, which can reduce the inclination of the pull tab 3 to the left and right sides and to the forward direction. In particular, when the two abutting wheels 2 are separated and have a spacing S, or the center line L of the two pulleys 16 is located between the two abutting wheels 2, the two abutting wheels 2 can abut against the bottom surface of the bottom plate 33, respectively, so that the pull tab 3 is less likely to be inclined to the forward direction, and the pulling of the pull tab 3 is more smooth.

[0028] In summary, the guide wheel set of the present application is configured to abut against the two guide grooves and the bottom surface of the bottom plate through the two pulleys and the abutting wheels, respectively, which can reduce the inclination of the pull tab to the left and right sides and to the forward direction. In particular, when the two abutting wheels are separated and have a spacing, the inclination of the pull tab to the forward direction can be further reduced, and the pulling of the pull tab is more smooth, and the pull tab is less likely to be blocked and cannot be pulled smoothly due to the inclination.

[0029] In addition to the above embodiments, the present invention also includes other implementation methods. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of protection of the claims of the present invention.

Claims

1. A guide pulley assembly structure, characterized in that: Include: A body having a lower surface and an upper surface facing each other, the lower surface having a joint portion extending downward, the upper surface having a support base, the support base having a shaft, each end of the shaft being used to support a pulley for positioning and rotation, the body further having a slotted hole passing through the lower surface and the upper surface, each side of the slotted hole having at least one shaft hole; and An abutment wheel has a center hole for passing through an axle rod, and the axle rod is combined with at least one axle hole on both sides of the slot hole, so that the abutment wheel is positioned and rotated in the slot hole according to the axle rod, and the outer peripheral surface of the abutment wheel protrudes from the upper surface of the body.

2. The guide pulley assembly structure according to claim 1, characterized in that: The centers of the shaft holes on both sides of the slot hole are relatively located on the same center line.

3. The guide pulley assembly structure according to claim 1, characterized in that: The main body has at least one positioning hole, and the positioning hole is used for a screw to pass through.

4. The guide pulley assembly structure according to claim 1, characterized in that: Two shaft holes are respectively formed on both sides of the slotted hole, and the two shaft holes are respectively located in a shaft seat portion.

5. The guide pulley assembly structure according to claim 4, characterized in that: The shaft seat portion partially protrudes from the upper surface of the body.

6. The guide pulley assembly structure according to claim 4, characterized in that: A shaft rod is respectively passed through the two shaft holes on both sides of the slot hole, and each of the two shaft rods has an abutting wheel.

7. The guide pulley assembly structure according to claim 6, characterized in that: The two abutting wheels are separated from each other with a distance therebetween.

8. The guide pulley assembly structure according to claim 7, characterized in that: When the pulley and the two abutting wheels are vertically projected onto a horizontal plane, the center lines of the two pulleys are located between the two abutting wheels.

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