JP4431544B2 - Steel wire retainer for slider - Google Patents

Description

  The present invention relates to a steel wire holder applied inside a slider of a linear guideway.

  Currently, the holder applied to the inside of the slider of the linear guideway is divided into a metal plate form and a resin-fitted plate form. Hereinafter, the structure of the metal plate form and the resin fitting plate form will be described in detail.

(Metal plate form)
FIG. 1 is a perspective view of the combined state of US Pat. No. 4,253,709, and FIG. 2 is a cross-sectional view of the combined state of US Pat. No. 4,749,284. In these, a metal holding plate is disposed between the slider and the rail, and the metal holding plate is formed by press working and bay folding forming.

  The metal holding plate 12 of US Pat. No. 4,253,709 is provided with a plurality of ball rolling grooves 14 in one metal holding plate 12 and is fastened to the inner wall surface of the slider 10 by screws 141, and the metal holding plate 12 is a rail. 11 is provided so as not to collide.

However, this has the following drawbacks.
(A) Since the metal holding plate 12 is formed by press working and bay fold forming, the manufacturing cost is high.

  (B) Since the metal holding plate 12 is fastened to the inner wall surface of the slider 10 by the screw 141, it is necessary to open a spiral hole in the slider, and the number of assembling steps is also required, which increases the manufacturing cost. .

  (C) In order to place the ball 142 in the plurality of ball rolling grooves 14 for adjustment, the operator needs to repeat the tightening / disassembling work of the metal holding plate 12 multiple times. Will increase.

  (D) When the Nilia guideway is used, the ball 142 is likely to collide with the metal holding plate 12, so that a large noise is generated.

  In addition, US Pat. No. 4,749,284 is an invention made to solve the above-mentioned drawbacks, in which a plurality of metal holding plates 15 are fixed to the slider 10 by a fitting method according to each ball rolling groove 14, and the metal The ball 142 is regulated by the holding plate 15 and comes into contact with the rail 11.

However, this has the following drawbacks.
(A) The metal holding plate 15 is formed by press working and bay fold forming, has a large number of points, and the forming angle of the fitting portion is difficult for the press working, so that the manufacturing cost is further increased.

  (B) When the Nilia guideway is used, the ball 142 easily collides with the metal holding plate 12, and thus a large noise is generated.

(Resin fitting plate form)
The product in the form of a resin-fitted plate is an invention made to solve the noise problem and the manufacturing cost problem. As shown in FIG. 3, during the process of assembling the slider 16 and the end plate 17, a slight resin fitting plate 18 is disposed, and the resin fitting plate 18 prevents the ball from escaping from the ball rolling groove. According to this, the complexity of processing (injection molding) has been reduced and the noise problem has been solved, but this has the following drawbacks.

  (A) Since the supporting force of the resin fitting plate 18 is smaller, the supporting force cannot be improved unless it is matched with the slider 16 and the end plate 17, but in this case, the tightening / disassembling operation of the resin fitting plate 18 is repeated several times. As it is necessary to do this, the assembly man-hours increase.

  (B) Since the resin-fitted plate 18 that has been injection-molded is likely to be altered or deformed due to abnormal temperatures or corrosive environments, the rolling of the ball becomes unsatisfactory if altered or deformed.

  A main object of the present invention is to provide a steel wire holder for a slider with a simple member and low manufacturing cost.

  The next object of the present invention is to provide a steel wire holder for a slider that can be applied to a slider of various dimensions, which can be smoothly operated and has sufficient strength.

The invention of the present application made to achieve the above object is a steel wire holder for a slider which is arranged according to the rolling groove of the slider and can roll the rolling body, and is arranged according to the rolling groove of the slider. Te, in the slider for steel wire holder capable of rolling is rolling body, an inner wall surface of the slider, Yes and the rolling groove is provided, at both ends of the slider, is provided with end plates, respectively, the end plate Is provided with an end plate engaging groove corresponding to the rolling groove of the slider, and the engaging groove extends to an end surface along the axis of the rolling groove of the slider, and an engagement step is formed at the end surface. steel wire retainer is formed in a substantially rectangular frame-like steel wire so as to correspond to the end plate relates grooves of the end plates, the steel wire retainer supporting said rolling body Two regulating portion which is slightly formed as possible, a holding portion formed on both sides of the restricting portion, and a hook corresponding to the engaging step of the end plate formed by bending an end portion of the holding portion A steel wire holder is provided by forming a reinforcing bay fold by bringing a steel wire closer to the inside opposite to each other, and engaging the hook with the engagement stage of the end plate. It is a gist that the steel wire holder for a slider is characterized in that the two restricting portions constitute a rolling passage in accordance with the rolling groove.

In the present invention, the end plate is a slider steel wire holder according to claim 1, characterized in that tapered blocks are then projectingly with arcuate tapered end face during its dependency groove There is a summary.

In the invention of the present application, the end plate has a tapered groove in the vicinity of the engaging step of the engaging groove so that an operator can insert a finger when disassembling and assembling. it is summarized in that a slider steel wire holder according to claim 1 or 2.

The gist of the invention of the present application is the steel wire holder for a slider according to claim 1 or 2 , wherein the rolling element is a ball or a roller.

  According to the steel wire holder for a slider according to the present invention, the member is simple, the manufacturing cost is low, the operation is smooth, the strength is sufficient, and the slider can be applied to sliders of various dimensions.

  Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  First, reference is made to FIGS. The slider steel wire holder according to the present invention includes one slider 20, two end plates 30, and four steel wire holders 40.

  The slider 20 is provided with four rolling grooves 22 on the inner wall surface of which the ball 21 can roll,

  The end plate 30 is provided at both ends of the slider 20, and four engaging grooves 31 are provided in accordance with the four rolling grooves 22 of the slider 20, and the engaging grooves 31 are formed on the rolling grooves 22 of the slider 20. An engagement step 311 is formed at the end surface extending along the axis, and a taper block 32 having an arcuate taper end surface 321 is provided between the engagement grooves 31 so as to be disassembled and assembled. In order to allow the operator to insert a finger, a tapered groove 312 is provided in the vicinity of the engaging step 311 of the engaging groove 31.

  The steel wire holder 40 is a frame body made of a steel wire having the same diameter, the shape thereof corresponds to each end plate engaging groove 31 of the end plate 30, and a restricting portion 41 is provided in the middle thereof. The holding portions 42 are provided on both sides thereof, and hooks 421 corresponding to the engaging steps 311 of the end plate 30 are provided at the end portions of the holding portions 42, and the reinforcing portions symmetric to the restricting portion 41. The fold 43 is folded, and the steel wire holder 40 is positioned in the end plate engaging groove 31 of the end plate 30 and locked by engaging the hook 421 with the engaging step 311 of the end plate 30. .

Next, each member and its operation change will be described in detail with reference to FIG. 8 and FIG.
Since the shapes of the four steel wire holders 40 according to the present invention correspond to the end plate engaging grooves 31 of the end plate 30, the taper block 32 of the end plate engaging groove 31 causes the hook 421 of the steel wire holder 40 to move. It can be easily deformed to pass the taper end surface 321 of the taper block 32, so that the steel wire holder 40 is fitted in the end plate engaging groove 31 of the end plate 30, and the hook 421 is connected to the end plate. Therefore, the restricting portion 41 of each steel wire holder 40 constitutes a ball rolling path corresponding to the rolling groove 22 of the slider 20, and the ball rolling path The ball 21 will not escape.

  In particular, in the restricting portion 41 according to the present invention, a reinforcing bay fold 43 is formed which is folded inward symmetrically, and the restricting portion 41 of each steel wire holder 40 rolls in a ball corresponding to the rolling groove 22 of the slider 20. Since the deformation of the steel wire holder 40 is reduced by the reinforcing bay fold 43, the steel wire holder 40 according to the present invention can be applied to sliders of various dimensions, and the ball rolling passage is long. Therefore, it is possible to avoid the steel wire holder 40 from being deformed and lowering the smoothness of the operation of the ball. Therefore, the unique design of the reinforcing bay fold 43 prevents the ball 21 from escaping from the ball rolling passage. They will not interfere with each other and can be operated stably.

  Finally, the relationship between the steel wire diameter and length of the steel wire holder 40 affects the degree of product deflection and reduces the ball holding force of the steel wire holder 40. As shown in FIGS. The rational value of the reinforcing bay fold 43 according to the present invention is obtained by the following mathematical formula.

L is the length of the steel wire working of the steel wire holder 40,
L1 is the length of the hollow portion of the reinforcing wire fold 43 of the steel wire holder 40,
0 ≦ L1 ≦ L,
A is the diameter of the ball 21,
B is the width of the narrow portion of the steel wire holder 40;
0 ≦ B <A,
Moreover, suitable conditions are 4A <(L-L1) <8A,
Yet another suitable condition is 0.75A <B <0.85A.

  Thus, although the invention has been described with reference to specific examples, the examples are for illustrative purposes only and are not intended to limit the invention, and have ordinary knowledge in the art. Those skilled in the art will appreciate that changes, additions, or deletions may be made to the embodiments disclosed herein without departing from the spirit and scope of the present invention.

FIG. 3 is a perspective view of the union state of US Pat. No. 4,253,709. It is sectional drawing of the combined state of the thing of US Patent US4,749,284. It is a disassembled perspective view of another conventional thing. It is a perspective view of the steel wire holder concerning the present invention. It is a perspective view which shows the combined state of the slider which concerns on this invention. It is a disassembled perspective view of the slider which concerns on this invention. It is a perspective schematic diagram showing a preferred disassembly method of the slider according to the present invention. It is a perspective schematic diagram showing a suitable assembly method of the slider according to the present invention. It is explanatory drawing of the dimension of the end plate and steel wire holder which concern on this invention. It is explanatory drawing of the dimension of the ball | bowl and steel wire holder which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Slider 11 Rail 14 Metal holding plate 14 Ball rolling groove 141 Screw 142 Ball 15 Metal holding plate 16 Slider 17 End plate 18 Resin fitting plate 20 Slider 21 Ball 22 Rolling groove 30 End plate 31 End plate engaging groove 311 Engagement step 312 Taper Groove 32 Tapered block 321 Tapered end surface 40 Steel wire holder 41 Restriction part 42 Holding part 421 Hook 43 Reinforcing bay fold L Steel wire working length L1 of steel wire holder Reinforcing bay fold recess Length A Ball diameter B Width of steel wire holder

Claims (4)

In the steel wire holder for a slider, which is arranged according to the rolling groove of the slider and the rolling body can roll,
The inner wall surface of the slider is provided with the rolling groove , and both ends of the slider are provided with end plates,
The end plate is provided with an end plate engaging groove corresponding to the rolling groove of the slider,
The engagement groove extends to the end surface along the axis of the rolling groove of the slider, and an engagement step is formed at the end surface .
The steel wire retainer is formed in a substantially rectangular frame-like steel wire so as to correspond to the end plate relates grooves of the end plate,
The steel wire holder includes two restricting portions formed in a small width capable of supporting the rolling body,
A holding portion formed on both sides of the restriction portion,
Comprising a hook corresponding to the engaging step of the end plate formed by bending an end portion of the holding portion,
In the two restricting parts, a steel wire is approached to the inner sides facing each other to form a reinforcing bay fold,
A steel wire holder is positioned by engaging the hook with the engagement stage of the end plate , and the two restricting portions constitute a rolling passage according to a rolling groove.
Steel wire holder for sliders. 2. The steel wire holder for a slider according to claim 1 , wherein the end plate has a taper block having an arcuate tapered end surface protruding between the engaging grooves. The end plate is characterized by a worker when dated and assembling in order to allow insertion of the finger, in the vicinity of the engagement step of dependency grooves are opened is tapered grooves claim 1 Or the steel wire holder for sliders of 2 . The steel wire holder for a slider according to claim 1 or 2 , wherein the rolling body is a ball or a roller.

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