TWI816622B - Anti-loosening structure of casters - Google Patents

Abstract

A caster anti-loosening structure, which includes a caster set. The caster set includes a wheel frame. A bearing seat is provided on the upper and lower sides of the wheel frame. Several rollers are provided between the bearing seat and the wheel frame for rolling contact between the two, and are located below the wheel frame. The bearing seat lock has a screw component passing through the wheel frame, and a screw fitting is screwed at the other end of the screw component to resist the other bearing seat. When the bearing seat and the wheel frame are combined, the screw component screw is equipped with a foot post. There is a reinforcement member between the bearing seat and the bearing seat. The reinforcement member is recessed with a foot column groove that matches the foot column and passes through a screw fitting groove that matches the screw fitting. The foot column can rotate in the foot column slot. There are at least two parallel holes on the side of the screw fitting. The flat surface can be matched and fixed in the slot of the screw fitting. The reinforcement can be equipped with an adjustment piece to firmly combine the reinforcement with the foot column and the screw fitting.

Description

Anti-loosening structure of casters

The present invention relates to an anti-loosening structure of a caster, and in particular, to a caster anti-loosing structure with a reinforced structure to prevent loosening and is easy to disassemble.

Press, many tools such as tables, chairs, cabinets, etc. will be equipped with casters at the bottom to facilitate movement. Traditionally, screws are widely used between the various components of casters. Since casters are frequently moved and turned, they often need to withstand thrust. , tension, and torsion, so it is necessary to pay more attention to the structural strength of the joint to prevent the casters from being damaged or separated from the foot posts during movement.

In addition, in order to strengthen the structure, components that can prevent loosening and strengthen the structure will be installed between the casters and the legs. However, in order to strengthen the structure, it may make it difficult to disassemble them. Casters like these are installed with screw locks. Parts are more for easy DIY assembly or disassembly and replacement. Even if the anti-loosening structure is easy to disassemble, consider whether it is easy to disassemble.

Therefore, the inventor of the present invention took this into account, thought about the idea of the invention, and designed it based on many years of experience. After many discussions and sample tests, and many revisions and improvements, the present invention was launched.

The technical problem to be solved by the present invention is to provide An anti-loosening structure for casters.

The invention provides a caster anti-loosening structure, which includes a caster set. The caster set includes a wheel frame. The wheel frame is provided with a wheel body for movement. The wheel frame is provided with a bearing seat up and down. The bearing seat is There are several rollers between the wheel frame for rolling contact between the two. The bearing seat lock located below the wheel frame is provided with a screw assembly passing through the wheel frame, and a screw fitting is screw-locked at the other end of the screw assembly to resist The bearing seat is located above the wheel frame, and the two bearing seats are combined on the wheel frame. The screw assembly is screwed with a foot post. There is a C-shaped reinforcement between the foot post and the bearing seat. Each end is convexly provided with a convex portion, an opening is formed between the two convex portions, and a through hole passes through the sides of the two convex portions. The center of the reinforcement is recessed with a foot post groove that matches the foot post. The foot post is It can rotate in the foot post groove. The bottom of the foot post groove has a screw fitting groove that matches the screw fitting. The side of the screw fitting is provided with at least two mutually parallel planes, and the screw fittings are fastened with the planes. In the screw accessory slot, the through hole can be equipped with an adjustment piece, which can apply force to compress the opening from both sides, and then compress and tighten the leg slot and the screw accessory connected to the opening. groove, so that the reinforcement can be reliably combined with the foot post and the screw fitting.

Optionally, the adjusting member is a pair of bolts and nuts.

Optionally, the adjustment member is a quick release screw set.

The first main purpose of the present invention is that the reinforcement is truly combined with the foot post and the screw fitting to achieve the effect of increasing the structural strength. When in use, the reinforcement is first fastened to the screw fitting. Then screw the foot post and the screw assembly, and adjust the adjustment piece to truly combine the reinforcement with the foot post and the screw assembly to further increase the structural strength. When it needs to be disassembled At this time, since the side of the screw fitting is provided with at least two flat surfaces, which allow the screw fitting to be fixed in the slot of the screw fitting, the user can hold the leg and the protrusion to rotate the reinforcement. When the screw fitting is pulled, only the screw component is screwed relative to the foot post, and the foot post is screwed out of the screw component, thereby making it easy to disassemble.

The second main object of the present invention is to use the reinforcement to be placed on the foot post and the screw assembly to truly strengthen the structure, and prevent the foot post and the screw assembly from being frequently pushed and pulled when the caster set is frequently pushed and pulled. Frequent stress may cause the screw assembly to break or collapse, and since the bearing seat and the wheel frame are in rolling contact with several rollers, the wheel frame can be moved relative to the foot column. The 360-degree rotation does not affect the screw fit between the foot post and the screw assembly to prevent loosening, and adjusting the adjustment piece so that the reinforcement is tightly sleeved on the foot post and the screw assembly ensures that the Neither the foot post nor the screw component can be loosened or detached from the screw component. Combined with the above, the reinforcement can achieve the functions of preventing loosening and being easy to disassemble at the same time.

Other objects, advantages, and novel features of the present invention will become more apparent from the following detailed description and associated drawings.

Part of the invention:

(10): Caster set

(11): Wheel stand

(111): Wheel body

(12):Bearing seat

(121):Roller

(13):Screw assembly

(14): Screw accessories

(141):Plane

(15):Foot pillar

(16): Reinforcement

(161):convex part

(1611):through hole

(162):Open your mouth

(163): Foot column slot

(164):Screw fitting slot

(17):Adjustment parts

[Figure 1] is a three-dimensional assembled view of the present invention.

[Figure 2] is an exploded perspective view of the present invention.

[Figure 3] is a front cross-sectional view of the present invention.

[Figure 4] is a top cross-sectional view of the reinforcement of the present invention, showing the combination of the reinforcement with the adjustment piece and the foot column.

[Figure 5] is the second top cross-sectional view of the reinforcement of the present invention, showing the connection between the reinforcement and the screw fittings. combine.

[Figure 6] is a top cross-sectional view of a reinforcement member according to another embodiment of the present invention, showing that the adjustment member is a quick-release screw.

[Figure 7] is a top cross-sectional view of the reinforcement member according to another embodiment of the present invention, showing another aspect of the screw fitting groove.

[Figure 8] is a top cross-sectional view of a reinforcement member according to another embodiment of the present invention, showing another aspect of the screw fitting and the screw fitting groove.

In order to enable your review committee to have a further understanding and understanding of the purpose, characteristics and effects of the present invention, please cooperate with the [Brief Description of Drawings] to elaborate as follows:

First, as shown in Figures 1 to 5, the present invention provides a caster anti-loosening structure, which includes a caster set (10), wherein the caster set (10) includes a wheel frame (11), The wheel frame (11) is provided with a wheel body (111) for movement. The wheel frame (11) is provided with a bearing seat (12) on the upper and lower sides. There is a bearing seat (12) between the bearing seat (12) and the wheel frame (11). There are several rollers (121) for rolling contact between the two. The bearing seat (12) located below the wheel frame (11) is locked with a screw assembly (13) passing through the wheel frame (11) and on the screw assembly. (13) The other end is screw-locked with a screw fitting (14) against the bearing seat (12) located above the wheel frame (11), and the two bearing seats (12) are assembled on the wheel frame (11). The screw assembly (13) is equipped with a leg (15). A reinforcement (16) is provided between the leg (15) and the bearing seat (12). It is C-shaped and has a protrusion (16) protruding from both ends. 161), an opening (162) is formed between the two convex parts (161), and a through hole (1611) passes through the sides of the two convex parts (161). The reinforcement (16) is recessed in the center to match the foot. The foot post groove (163) of the column (15) can rotate in the foot post groove (163). A screw that matches the screw fitting (14) is passed through the bottom of the foot post groove (163). Accessory groove (164), the side of the screw accessory (14) is provided with at least two mutually parallel A flat surface (141) is arranged, and the screw fitting (14) is matched and fixed in the screw fitting groove (164) with the flat surface (141), and an adjusting member (17) can be assembled in the through hole (1611). , the adjusting member (17) can apply force to compress the opening (162) from both sides, and then compress and tighten the leg groove (163) and the screw fitting groove (164) connected to the opening (162), Therefore, the reinforcing member (16) can be reliably combined with the foot column (15) and the screw fitting (14).

Through the above structure, the reinforcement (16) is indeed combined with the foot post (15) and the screw fitting (14) to achieve the effect of increasing the structural strength. When using, first remove the reinforcement (16) Fasten on the screw fitting (14), then screw on the foot post (15) and the screw assembly (13), adjust the adjusting piece (17) to ensure that the reinforcement (16) is truly combined with the foot. The structural strength of the column (15) and the screw fitting (14) is further increased. When disassembly is required, since at least two planes (141) are provided on the side of the screw fitting (14), the plane (141) makes the screw fitting (14) is fixed in the slot (164) of the screw fitting. The user can hold the leg (15) and the protrusion (161) tightly, and can rotate the reinforcement (16) to pull the screw fitting. (14) At this time, only the screw component (13) is screwed relative to the foot post (15), and the foot post (15) is screwed out of the screw component (13), which makes it easy to disassemble.

When the present invention is actually used, the reinforcement (16) is put on the foot column (15) and the screw fitting (14) to truly strengthen the structure. When the caster set (10) is frequently pushed and pulled, the structure can be strengthened. Prevent the screw assembly (13) from breaking or collapsing due to frequent stress between the foot column (15) and the screw assembly (13), and due to the bearing seat (12) and the wheel frame (11) Because the roller (121) is in rolling contact with the two, the wheel frame (11) can rotate 360 degrees relative to the foot column (15) without affecting the foot column (15) and the screw. The screws between the components (13) can prevent loosening, and adjusting the adjustment piece (17) to make the reinforcement (16) tightly fit on the foot column (15) and the screw fitting (14) can ensure that all Neither the foot post (15) nor the screw fitting (14) can be loosened from the screw assembly (13). Combining the above mentioned reinforcements (16) can achieve the same goal at the same time. Anti-loosening and easy to disassemble.

As shown in Figure 4, the present invention provides a caster anti-loosening structure, in which the adjusting member (17) is a pair of bolts and nuts.

As shown in Figure 6, it is another embodiment of the present invention. The present invention provides a caster anti-loosening structure, in which the adjustment member (17) is a quick-release screw set and can be adjusted quickly.

As shown in Figure 5, the present invention provides a caster anti-loosening structure, in which the screw accessory (14) is a hexagonal nut, which is the most versatile and stable choice. The screw accessory slot (164) can It is also hexagonal and can be aligned with positioning. As shown in Figure 7, the screw fitting groove (164) can only fit two of the planes (141), and the remaining parts are not restricted. As shown in Figure 8 , is another embodiment of the present invention. The screw fitting (14) is a round nut and is cut with two flat surfaces (141). The screw fitting groove (164) only matches the two flat surfaces (141) to make it The screw fitting (14) is fixed in the screw fitting groove (164). In the above examples, the screw fitting (14) can be pulled when the reinforcing member (16) is rotated.

The above is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention; that is, all equivalent changes and modifications made according to the patent scope of the present invention should still belong to the present invention. within the scope covered by the patent.

(10): Caster set

(11): Wheel stand

(111): Wheel body

(12):Bearing seat

(13):Screw assembly

(14): Screw accessories

(141):Plane

(15):Foot pillar

(16): Reinforcement

(161):convex part

(1611):through hole

(162):Open your mouth

(163): Foot column slot

(164):Screw fitting slot

(17):Adjustment parts

Claims (4)

An anti-loosening structure for casters, which includes a caster set, wherein: The caster set includes a wheel frame, which is provided with a wheel body for movement. The wheel frame is provided with a bearing seat on the upper and lower sides. There are several rollers between the bearing seat and the wheel frame for rolling contact between the two, located at The bearing seat lock below the wheel frame is provided with a screw assembly passing through the wheel frame, and a screw fitting is screwed at the other end of the screw assembly to resist the bearing seat located above the wheel frame, and the two bearing seats are combined On the wheel frame, the screw assembly is screwed with a foot post. A C-shaped reinforcement is provided between the foot post and the bearing seat, and a protrusion is provided at each end. An opening is formed between the two protrusions. There are through holes on the sides of the convex portion, and a foot column groove matching the foot column is recessed in the center of the reinforcement. The foot column can rotate in the foot column groove, and the bottom of the foot column groove runs through a foot column groove matching the foot column. In the screw fitting groove of the screw fitting, at least two mutually parallel planes are provided on the side of the screw fitting, and the screw fitting is matched and fastened in the screw fitting groove with these planes. The through hole can be equipped with an adjustment member. The adjusting member can apply force to compress the opening from both sides, and then compress and tighten the leg slot and the screw accessory slot connected to the opening, so that the reinforcement can be truly combined with the leg and the screw. On accessories. The anti-loosening structure of the caster as claimed in claim 1, wherein the adjusting member is a pair of bolts and nuts. The caster anti-loosening structure according to claim 1, wherein the adjustment member is a quick-release screw set. The caster anti-loosening structure according to claim 1, wherein the screw accessory is a hexagonal nut.

Images