TW200528044A - Furniture glide with polyurethane base - Google Patents

Abstract

A furniture glide base having a substantially circular sliding surface that is of elastomeric material, preferably a thermoplastic urethane such as polyurethane. In one embodiment, the glide base has an annular rim portion extending obliquely upward from the periphery of the circular sliding surface to a first elevation, and a central post extending vertically upward from the center of the base, to a higher elevation. The post can have an upper end that forms a spherical surface to form part of a swivel joint. In another embodiment, the base has an annular rim portion of the same or different material, extending upward from the periphery of the circular sliding surface, for receiving a furniture leg.

Description

200528044 (1) _ IX. Description of the invention ‘『 [Technical field to which the invention belongs] The present invention relates to a furniture sliding device, and more particularly to an improved furniture sliding base. [Prior art] There are various types and structures of furniture sliding devices, but the basic purpose is to provide an upper part that houses the furniture feet and a lower part that forms a sliding surface. U.S. Patent Nos. 5 9 9 1 974, "Swivelling Furniture Glide," and 6 1 5 4 923 "High Hold Furniture Glide", and U.S. Publication US2002 / 008 8 0 8 2A1 describe sliding devices of the type having three main members: (1) A metal sleeve, which includes a bottom wall, an upright cylinder side wall extending from the bottom wall and forming a socket for accommodating a household's lame, and a clamping device for engaging the house's lame in the socket; (2) ) A rotatable sliding device support housing fixed on the bottom wall of the metal sleeve; and (3) a slide base fixed to the support housing and forming a substantially flat sliding surface contacting the ground. US Patent No. 640 5 9 8 2, "Self-Attaching Sliding

"Support for Articles of Furniture" describes another type of sliding device, which does not have a metal sleeve or a rotating property, but is composed of a generally cup-shaped integral elastic member for clamping the foot and an overall slidable for contacting the ground Base member structure. In chase and other known furniture sliding devices, the sliding surface contacting the ground is especially selected from materials with higher hardness. Typical base member materials -4- 200528044 (2) 4 materials This includes steel (usually chosen for carpet flooring) or hard plastics such as nylon or polyethylene (multiple choices for tiled flooring). These materials should ideally be durable and easy to clean the sliding surfaces, as well as make furniture Sliding along the ground is easy and quiet without wear or stain. Although these materials can perform satisfactorily in new or clean environments, the stains and debris appearing on the ground during actual use The swarf greatly reduces the performance of the furniture sliding device using these base materials. ^ [Summary of the Invention] The object of the present invention is to provide a device which can be used in carpets. The floor can also be used as a furniture sliding device for the sliding surface of the tile floor, which maintains satisfactory durability and easy cleaning performance and the ease and quietness of sliding along the floor without prolonged use. In a general aspect, the present invention may include a furniture sliding base having a substantially circular sliding surface, which is an elastomeric material, preferably 0 thermoplastic urethane, such as Made of polyurethane. In one embodiment, the sliding base has an annular edge portion that extends obliquely upward from around the circular sliding surface to a first height, and a center post that extends vertically upward from the center of the base to a higher height The central post may have an upper end forming a spherical surface to form a rotational connection. In another embodiment, 'the base has a base made of the same or different materials and extending upward from around the circular sliding surface to accommodate the home A cramped annular edge portion. In another aspect, the present invention is a furniture sliding device including an upper portion that houses a furniture crest and a light forming portion. The lower part of the sliding surface, wherein the lower part is made of elastic material. ^ In another aspect, the present invention aims to provide a sliding device for a stomping furniture, including (1) a metal sleeve, including a bottom Wall, an upright cylindrical side wall extending from the bottom wall and forming a socket for accommodating the house, and a clamping device for engaging the house cricket in the house; (2) a wall fixed to the bottom of the metal sleeve And (3) a sliding base fixed on the supporting housing and forming a substantially flat sliding surface, wherein the sliding surface is an elastomer. ® Regardless of the embodiment, the elasticity according to the present invention The softer sliding surface of the body material surprisingly performs well on all floors. Obviously, the heavy loads transmitted through the home's feet cause dirt and debris, such as sand, glass fragments, metal fragments and shreds Local high pressure contact with other hard particles, the softer surface will sag to temporarily "adsorb" these particles. For example, when a student is sitting on a chair with a sliding device according to the present invention, particles under the sliding surface are temporarily adsorbed (ie, trapped) by the base, so that when the sitting student moves the chair under a desk or table, etc. At this time, the particles trapped on the sliding surface do not interfere with the low-friction contact surface between the sliding surface and the ground. This adsorption effect not only reduces the harmful effects on sliding caused by the appearance of particles between the ground and the sliding surface, but also reduces the "scratch" of particles through the furniture through the same mechanism, such as the movement of a chair Wear and soiling of the ground may be caused when passing over the ground. Similarly, the scratching of the sliding surface caused by these particles is also reduced, thereby extending the life of soft and delicate materials traditionally thought to be unsuitable for this end use. Another advantage of the present invention is that when the weight on the base is released, -6- 20052-8044 (4) the deformation of the base material due to the adsorbed particles is recovered, thereby pushing the adsorbed particles to be easily 淸Except the sliding surface. Therefore, it is obvious that the present invention can easily achieve the object of the invention, namely, to provide a furniture sliding device having a sliding surface which can be used for both carpet floors and tile floors, which can maintain satisfactory performance during an extended period of use. Durability and easy scouring performance as well as ease and quietness of sliding along the floor without wear and stain.

[Embodiment] FIGS. 1 and 2 show a first embodiment of a sliding base according to the present invention, and, for example, in US Patent No. 5 99 1 974, "Swivelling Furniture

"Glide" is related to 6 1 5 4 923, "High Fur 1 d Furn it ure G 1 ide" and the rotary furniture sliding device described in US publication US2002 / 008 8082A1. Clips and metal for housing furniture The sleeve is generally represented by the numbers 10 and 12. The metal sleeve 12 has a circular bottom wall 14 and an upright cylindrical side wall 16. The upper part of the side wall is preferably bent radially inward to form a circular metal sleeve opening] 8. The metal sleeve opening 18 is preferably closely matched with the outer diameter of a lame (not shown). The bottom wall 14 forms a circular fixed opening 20 coaxial with the metal sleeve opening 18. The bottom wall of the metal sleeve 1 2 14 further preferably has the contour of the recess adjacent to the fixed opening 20. The clip 10 in the metal sleeve 12 may have various forms; it is formed by a longitudinal elastic metal strip as shown in FIG. 1. The clip 10 has a clip base 22 The clip base 22 has a working area 200528044 (5) (footprint) smaller than the opening of the metal sleeve] and a pair of clip arms 24, 26 located at opposite positions. The clip arms 24, 26 are usually vertically upward from the clip base 22 Extension. Unstressed Clip Arm 2 4, 2 6 forms a diameter larger than the diameter of the metal sleeve 2 of the middle diameter 2 (neutrajdiameter) & the arms 2 4 2 6 and the base 22 are elastically deformable, so when When the clip 10 is inserted, the base first enters the metal sleeve opening 18, and the clip arms 24, 26 deform inwardly to be smaller than the diameter 28 of the metal sleeve opening 18. After passing through the metal sleeve opening 18, the clip arms 24, 26 usually recover Neutral shape. The clip base 22 forms a central clip fixing opening 30. When the clip 10 is installed in the metal sleeve 12, the clip fixing opening 30 is aligned with the metal sleeve fixing opening 20. The clip base 22 also projects downward to form a length A cylindrical portion equal to the contour depth of the concave portion of the metal sleeve 12. The fixed openings 20, 30 have the same diameter.

The fixing members 32 are fixed by clips and metal sleeve fixing openings 30,20. The fixing member 32 has an expandable head 34 and an opposite rotating portion 36. The head 3 4 of the fixing member 3 2 is inserted through the aligned fixing openings 20, 30 and bent or flattened to pull the rotating portion 3 6 against the bottom wall 14 of the metal sleeve 1 2. The fixing member securely fastens the metal sleeve 12 and the clip 10 together. When fastened together, the clip 10 and the metal sleeve 12 can fully support the furniture, and therefore no additional structural components are required. The rotating portion 3 6 of the fixing member 3 2 extends downward from the bottom wall 14 and extends radially outward to form a convex spherical outer rotation surface and a concentric inner spherical rotation surface. A housing assembly 38 having an inner shell 40 and an outer shell 42 is slidably combined with an outer rotating surface of the fixing member 32. The inner shell 40 is usually spherical and forms a circular inner shell ′ 44 having a diameter smaller than the rotating part 36 of the fixing member 32. The inner shell 40 is nested within the outer shell 42. The housing 42 generally has the shape of a truncated cone, forming an expanded portion 46 and a constricted portion 48 which define an outer edge. Wai Wai 4 2 forms a circular shell opening 5 0 at a portion 48 having a diameter smaller than the outer diameter of the inner shell 4 q. The spherical shape of the inner shell 40 can improve the rotational sliding engagement of the inner shell 40 and the outer shell 42. The slide base 52 is mounted on the extended portion 46 of the housing 42. Sliding_52 is preferably a monolithic or monolithic component that is molded as an elastomeric material that is softer than traditional materials used for this purpose. The base 52 is round and has an annular edge portion 54 for engaging to the housing 42 and a center pillar portion 56 which is raised along the axis. The sliding base 5 2 is installed and positioned by crimping the outer edge of the 2 2. The central pillar portion of the sliding base 5 2 forms a generally convex base rotation surface, which is in surface-to-surface contact with the internal rotation of the fixing member 32. The central pillar portion 56 is formed in a sufficient size to keep the housing assembly 38 and the rotating portion _ of the fixing member 32 tightly engaged. The preferred dimensions of the rotating part 36, the inner shell 40, the outer shell 4 2 and the slider 5 2 are such that the metal sleeve 2 can be rotated relative to the base 5 2 from 32 to 32 degrees. For furniture sliding 5 8 'which requires a smaller angle of rotation, it is only required to have a housing 4 2. The slide base 52 is preferably made of a thermoplastic urethane elastomer. The sliding base 52 acts as a cushion and is used for contacting the ground with a smooth, circular sliding surface 60. 3 and 4 show a second embodiment according to the present invention, related to a sliding device such as described in Patent No. 64 0 5 9 8 2 Self-Attaching Sliding Support Articles of Furniture. Reduced shape base body shape, a shell 56-shaped turning surface is high enough 3 6 moving base linear device assembly with US for -9- 200528044 (7) self-attaching sliding support for furniture items The piece 1 1 〇 includes a first elastic, especially elastomeric support member

1] 2 and a second sliding member 1 1 4. The supporting member 1 1 2 includes a thicker base portion Π 6 for buffering the weight of the object to be supported. Formed integrally with the base portion 116 of the support member 112 is a peripheral edge 1 1 8 which is indented and extends inwardly. The edges 1 1 8 are generally "C" shaped and are used to engage the feet 1 20 of the furniture item to be supported. Since the edge 1 1 8 is also preferably formed of an elastomer material, the periphery of the foot 1 2 0 can be elastically engaged freely. Moreover, the edges 1 1 8 can also accommodate feet in a range of sizes and shapes. The edge 1 22 of the edge 1 1 8 extends inwardly and is suspended above the internal space 1 2 4 of the support member 1 1 2. The diameter of the circular opening 1 2 6 of the edge 1 1 8 is denoted as dimension A. The diameter of the internal space 1 2 4 of the component 1 12 is expressed as a dimension B, and the dimension B is larger than the dimension A. In view of the fact that the edge 118 is elastically deformed when the foot 120 is inserted therein, the support member 110 can accommodate a family foot having a diameter ranging from A to B. Moreover, the edges 1 1 8 will also accommodate square or rectangular feet with diagonals in the range a to B. This reduces the number of differently sized support members 1 110 to be equipped. In addition, the generally circular support 1 1 10 shown here may be oval or rectangular in plan view. The sliding portion 1 14 is generally cup-shaped and is connected to the underside of the support member 12 and the dagger b is placed on the surface on which the item is to be supported. The sliding part] 1 4 is preferably made of a thermoplastic polyurethane elastomer. It should be understood that the slidable support 1] 0 according to the second embodiment of the present invention may alternatively be made of a homogeneous elastomeric material instead of a different material. In each variation, the lower part forming the sliding surface]] 4 is made of an elastomer material group -10- 200528044 (8) into an elastic mixture, while the upper support member or part n 2 does not require an M elastomer. Similarly, as long as the sliding surface is an elastic body, the sliding base of the first embodiment may be a composite material. Figures 5 and 6 refer to the alternative embodiment of Figures 1 and 2 described above. The integrated sliding device 2 1 0 of this embodiment has a clip structure, including a metal sleeve 212, which supports a generally circular clip member 214. The clip member 2 1 4 is formed with a plurality of depressions or cuts, thereby forming A separate, downwardly projecting clip arm 2 1 6 ′ securely secures the lower portion of a substantially tubular furniture lame (not shown). A steel fixture 218 passes through the metal sleeve 212 in the center and has an upper end that is expandable during assembly to mount the clip 214 against the top of the dome 220 formed in the bottom of the metal sleeve. The metal sleeve itself is placed on a support platform 222, and the support platform 22 2 is supported at the lower end of the fixing member, which has a concave seat 2 24 there. This provides a swivel engagement with the center post portion 226 of the base 228. As in the previous embodiment, preferably, the polyurethane base 228 is installed and positioned by pressing the outer edge of the shell cover 230, and the shell cover 230 is mounted on the inner shell 2 3 2. The elastomer material forming the sliding surface of any of the embodiments of the present invention is preferably urethane, especially thermoplastic, and especially polyester polycaprolactone resin. Generally speaking, the elastomer should have a hardness in the range of 50 to 60, preferably about 55, in terms of Shore hardness (Sho ore D s c a 1 e). Preferably, the polyurethane material can be Dww Series 2102 Pellethane DPE. It should also be understood that the exclusive right of the present invention is limited by the scope of the patent application, and -11-200528044 (9) is not limited to these preferred embodiments. The elastomer base or 'sliding surface according to the invention can be used in conjunction with other rotating sliding devices, ie, for example, various combinations of metal sleeves, clips, and support cases described in these patents appearing here as reference documents; do not rotate Sliding device; temporary sliding device for moving furniture and the like; and as described in US Patent No. 6 3 2 4 7 2 5 "Furniture Glide", used to fit the original device sliding A sliding device above the device. • [Brief description of the drawings] The preferred embodiment of the present invention will be described below with reference to the drawings, in which: FIG. 1 is a longitudinal section of a rotary furniture sliding device with an elastic base according to a first embodiment of the present invention 2 is a perspective view of an elastic base of the embodiment of FIG. 1; FIG. 3 is a longitudinal sectional view of a 0 furniture sliding device having an elastic sliding surface according to a second embodiment of the present invention; FIG. 4 is a view of FIG. A perspective view of the furniture sliding device of the embodiment; and FIGS. 5 and 6 are a plan view and a sectional front view of the alternative embodiment shown in FIGS. 1 and 2, respectively. [Description of main component symbols] 10 Clip] 2 Metal sleeve] 4 Bottom wall -12- 200528044 (10) 1 6 18 2 0 22 2 4 26 30 3 2

36 3 8 40 4 2 44 46 48

5 0 52 54 5 6 5 8 60 110 112 Side wall metal sleeve opening fixing opening clip base clip arm clip arm clip fixing opening fixing head head rotation part housing assembly inside shell outer shell inner shell opening expanding part shrinking part shell opening sliding Base edge part, center pillar part, furniture sliding device, sliding surface support, support member-13 200528044 (11)] 1 4 sliding part 1 1 6 base part 1 1 8 edge 120 foot 122 end edge 1 2 4 internal space 126 round Shaped opening 2 1 0 Slide device 212 Metal sleeve 2 1 4 Clip part 216 Clip arm 2 1 8 Fixing piece 22 0 Dome 222 Support platform 224 Concave seat 2 2 6 Center pillar part

22 8 Base 230 Case cover 2 3 2 Inner case A Circular opening 2 2 Diameter B Internal space] 2 4 Diameter

Claims (1)

200528044 (1) X. Patent application scope 1. A furniture sliding device includes an upper part for accommodating a lame foot and a lower part forming a smooth sliding surface, wherein the lower part is composed of an elastomer material. 2. The furniture sliding device according to item 1 of the patent application scope, wherein the elastomer material is polyurethane. 3. The furniture sliding device according to item 1 or 2 of the scope of patent application, φ wherein the elastomer material is thermoplastic. 4. The furniture sliding device according to item i or 2 of the scope of patent application, wherein the elastomer has a Kennedy D hardness in the range of 50 to 60. 5. The furniture sliding device according to item 2 of the scope of patent application, wherein the polyurethane is a pell ethane thermoplastic polyurethane elastomer. 6. The furniture sliding device according to item 2 of the scope of patent application, wherein the polyurethane is a polyester-type polycaprolactone resin. 7. The furniture sliding device according to item 4 of the scope of patent application, wherein the elastic body has a Shore D hardness of about 5 5. 8. A sliding device for a lameness, including: a metal sleeve, the metal sleeve includes a bottom wall, an upright cylindrical shape extending from the bottom wall and forming a socket for receiving the lameness of the home A side wall, and a clamping device in the socket for engaging the lameness of the house to be accommodated; a sliding device supporting housing connected to the metal sleeve; and a substantially flat sliding surface fixed on the supporting housing The sliding base is characterized in that the sliding surface is an elastic body. 9. The sliding device according to item 8 of the scope of patent application, wherein the sliding surface is urethane. 1 〇. The sliding device according to item 8 or 9 of the scope of the patent application, wherein the sliding device housing has a substantially frustoconical shape and includes a lower circular edge, and the sliding base has a uniform composition and is substantially circular. Has an upright annular edge confined within the lower circular edge. 1 1. The sliding device according to item 8 or 9 of the scope of patent application, wherein the sliding base has a body member made of a material fixed to the casing of the sliding device, and the sliding surface is a kind of elasticity integrated with the body member.体 材料。 Body material. ® 1 2 · The sliding device according to claim 8 or 9, wherein the elastomer has a Shore D hardness in the range of 50 to 60. 1 3. The sliding device according to item 9 of the scope of patent application, wherein the polyurethane is a thermoplastic polyurethane having a hardness of about 55 Kensington D. 1 4 · The sliding device according to claim 10, wherein the support housing is rotatably pivoted to the metal sleeve at the central pivot connection, and the sliding base has a central post at the pivot connection. The pivot connection has an upright bearing surface that allows g vertical force to be transmitted from the accommodated foot through the metal sleeve to the pivot connection. 1 5 · — A furniture sliding base with an approximately circular sliding surface made of an elastomer material. 16 · The sliding base according to item 15 of the scope of patent application, wherein the sliding surface is polyurethane. 17. The sliding base according to item [5] or [6] of the patent application scope, wherein the elastomer material has a Shore d hardness in the range of 50 to 60. [8] The sliding base according to item [6] of the patent application scope, wherein the -16-200528044 (3) S polyurethane is a thermoplastic polyurethane having a hardness of about 55 Shore D. 19. The sliding base according to item 15 or 16 or 18 of the scope of the patent application, wherein the base has an annular edge portion extending obliquely upward from the circumference of the circular sliding surface to a first height; and An upright column that extends from the center of the base up to one more round. 20. The sliding base according to item 19 of the patent application scope, wherein the post has an upper end forming a spherical surface. 2 1. The sliding base according to item 15 of the scope of patent application, wherein the 1 base has an annular edge portion extending upward from the periphery of the circular sliding surface. -17-