JP5669715B2 - Floating nut - Google Patents

Description

  The present invention relates to an improvement of a floating nut, and more specifically, a nut having a longitudinal direction and a lateral direction, having a screw hole along an axial direction orthogonal to the longitudinal direction and the lateral direction, and the nut moves in the axial direction. The present invention relates to a floating nut including a holding member that holds the nut so as to allow movement in the vertical direction and the horizontal direction while restricting this.

  Conventionally, a floating nut including a nut and a holding member that holds the nut is known. For example, Patent Document 1 includes a nut having a vertical direction and a horizontal direction, and having a screw hole along an axial direction orthogonal to the vertical direction and the horizontal direction, respectively, and restricting the nut from moving in the axial direction. A floating nut is disclosed that includes a retainer that holds the nut to allow movement in the longitudinal and lateral directions.

  The retainer includes a main body having a through hole that is larger in the vertical direction and the horizontal direction than the screw hole, an opposing portion that faces the main body in the axial direction, and a connecting portion that connects the opposing portion and the main body. ing. A plate spring that presses the nut against the main body is formed in the axial direction at the tip of the facing portion. The retainer restricts the nut from moving in the axial direction by the leaf spring, and restricts the nut from moving in the vertical direction by the connecting portion.

  The nut has a boss portion around the screw hole. The boss portion is formed so as to protrude rearward from the opposing portion of the retainer in the axial direction, and when the nut moves laterally with respect to the holding member, the boss portion becomes the opposing portion. By contacting, the screw hole is prevented from being hidden by the peripheral edge of the through hole.

JP 2010-14189 A

    Since the boss portion is formed so as to protrude in the axial direction toward the back side from the opposing portion of the retainer, there is a problem that it is difficult to reduce the axial size with this floating nut.

  Therefore, an object of the present invention is to provide a floating nut that can easily reduce the axial size.

  In order to solve the above problems, the present invention provides a plate-like nut having a vertical direction and a horizontal direction, and having a screw hole along an axial direction orthogonal to the vertical direction and the horizontal direction, respectively, The present invention relates to an improvement of a floating nut that includes a holding member that holds the nut so as to allow movement in the vertical direction and the horizontal direction while restricting movement in the axial direction.

The features of the present invention include the following matters. The holding member includes a main body portion having a first through hole and a second through hole larger than the screw hole, and a pressing portion that presses the nut against the main body portion in the axial direction. An engaging convex portion and an engaging concave portion are formed between the pressing portion and the nut, and the vertical position of the nut with respect to the holding member so that the screw hole can be seen on the surface side through the second through hole. Positioning means for determining the direction and the position in the lateral direction are provided. The protrusion protruding from the surface side of the nut and appearing on the surface side through the first through hole in a state where the positioning means determines the position of the nut in the vertical direction and the horizontal direction with respect to the holding member. Is provided. The protrusion comes into contact with the peripheral edge of the first through hole when the screw hole is close to the peripheral edge of the second through hole. The nut is formed flat on the front side and the back side except for the screw hole, the protrusion, and the engagement recess. The axial dimension of the protrusion is smaller than the axial dimension of the main body.

  The present invention disclosed in the above paragraphs [0009] and [0010] can include at least the following embodiments.

  (1) While the engaging convex part is formed in the pressing part, the engaging concave part is formed on the back side of the nut. The position of the engaging recess and the position of the protrusion coincide with each other in the vertical direction and the horizontal direction.

  (3) While the second through hole is formed in a circular shape similar to the screw hole, the first through hole extends radially outward from the axis of the circular second through hole. Thus, it is formed in a continuous manner.

  According to the floating nut according to the present invention, the engaging convex portion and the engaging concave portion are formed between the nut and the pressing portion of the holding member so that the screw hole can be seen on the surface side through the second through hole. Positioning means for determining the position of the nut in the vertical direction and the horizontal direction with respect to the holding member are provided, so that when the engagement convex portion and the engagement concave portion are engaged, the nut in the vertical direction and the horizontal direction with respect to the holding member On the other hand, when the engagement between the engagement convex portion and the engagement concave portion is released, the nut can be moved in the vertical direction and the horizontal direction with respect to the holding member. In addition, the nut is provided with a protrusion that protrudes from the surface side and appears on the surface side through the first through hole when the positioning means determines the position of the nut in the vertical and horizontal directions relative to the holding member. When the screw hole is close to the peripheral portion of the second through hole, the portion comes into contact with the peripheral portion of the first through hole, so that the screw hole can be prevented from being hidden by the second through hole. Moreover, in order to prevent the screw hole from being hidden by the peripheral portion of the second through-hole due to the contact between the protrusion disposed inside the first through-hole and the peripheral portion of the first through-hole, Since the space in which the holding member is located can be used effectively, the axial dimension of the nut and the holding member does not increase. Therefore, the axial miniaturization of the floating nut can be facilitated.

The perspective view which looked at the floating nut which concerns on 1st Embodiment of this invention from the back surface side. The perspective view which looked at the floating nut from the surface side. Sectional drawing in the III-III line of FIG. The perspective view which looked at the nut from the surface side. Sectional drawing in the VV line | wire of FIG. Explanatory drawing which shows the process of forming a projection part and an engagement recessed part. The perspective view which looked at the holding member from the back side. The perspective view which looked at the holding member from the surface side. Sectional drawing in the IX-IX line of FIG. Explanatory drawing which shows arrangement | positioning of the nut and holding member in a position determination state. Explanatory drawing which shows the state which the nut moved relatively to the vertical direction with respect to the holding member from the position determination state. Explanatory drawing which shows the state which the nut moved relatively to the horizontal direction with respect to the holding member from the position determination state. Explanatory drawing which shows the use condition of a floating nut. The perspective view which looked at the floating nut which concerns on 2nd Embodiment of this invention from the back surface side.

  The details of the floating nut according to the present invention will be described below with reference to the accompanying drawings.

<First Embodiment>
FIG. 1 is a perspective view from the back surface side of the floating nut 1 of the first embodiment according to the present invention, FIG. 2 is a perspective view from the front surface side of the floating nut 1, and FIG. It is sectional drawing in the III-III line | wire in. In the figure, X indicates a horizontal direction, Y indicates a vertical direction orthogonal to the horizontal direction X, and Z indicates an axial direction orthogonal to the horizontal direction X and the vertical direction Y, respectively. The floating nut 1 is composed of two parts, a nut 2 and a holding member 3.

  The floating nut 1 includes a nut 2. As shown in FIG. 4, the nut 2 has a substantially rectangular plate shape. The nut 2 is formed of metal such as stainless steel, for example, and has a screw hole 20 along the axial direction Z as shown in FIGS. 4 and 5. The nut 2 has a pair of protrusions 21 on the front surface side, and has a pair of engaging recesses 22 on the back surface side of the nut 2. In FIG. 4, P is a vertical virtual center line that bisects the dimension of the nut 2 in the horizontal direction X, and Q is a horizontal virtual center line that bisects the dimension of the nut 2 in the vertical direction Y. is there. The protrusion 21 and the engagement recess 22 are symmetric with respect to the vertical virtual center line P and the horizontal virtual center line Q, and are disposed on both sides of the screw hole 20.

  For example, as shown in FIG. 6, the protrusion 21 and the engagement recess 22 have two bosses 42 in a state where the nut 2 having the screw hole 20 is placed on the top of the die 41 having the two recesses 40. The punch 43 is simultaneously formed by a half punching process in which the punch 43 is struck from the upper side to the lower side along the axial direction Z. The nut 2 is formed flat on the front surface side and the back surface side except for the protrusion 21, the engagement recess 22, and the screw hole 20.

The floating nut 1 further includes a holding member 3. The holding member 3 is formed of a metal such as stainless steel, and as shown in FIGS. 7 to 9, as shown in FIGS. 7 to 9, a main body portion 31, a facing portion 35 that faces the main body portion 31 in the axial direction Z, and a main body portion 31. A pair of connecting portions 39 for connecting the facing portion 35 is provided.

  The main body 31 is formed in a substantially rectangular shape and has a pair of first through holes 320 and a second through hole 327. As shown in FIG. 2, when the floating nut 1 is viewed from the surface side, the second through hole 327 has a larger area than the screw hole 20 and has a circular shape similar to the screw hole 20. The pair of first through holes 320 continuously extend in the radially outward direction from the axial center 328 (see FIG. 10) of the circular second through hole 327 and is symmetrical with respect to the longitudinal virtual center line P. It is arranged on both sides of the second through hole 327.

  As shown in FIG. 9, the main body 31 has a dimension L8 in the axial direction Z larger than a dimension L7 in the axial direction Z of the protrusion 21 shown in FIG. In other words, the dimension L7 of the protrusion 21 in the axial direction Z is smaller than the dimension L8 of the main body 31 in the axial direction Z.

  As shown in FIG. 7, the main body 31 includes a pair of protrusions 33 extending from both sides in the lateral direction X so as to be separated from each other. The protrusions 33 are arranged on both sides of the first through-hole 320 in order to prevent the strength of the portion of the main body 31 where the first through-hole 320 is arranged in the lateral direction X from being lowered. The protrusion 33 has a through hole 34 for attaching the floating nut 1 to a side wall panel 61 that is an object to be described later. The through hole 34 has an internal thread 34 a along the axial direction Z.

  The facing portion 35 includes a pair of restricting portions 36 that restrict the nut 2 from being separated from the main body portion 31 and a pair of pressing portions 37 that press the nut 2 against the main body portion 31. The restricting portion 36 and the pressing portion 37 extend in the axial direction Z so as to face the main body portion 31 from the end 39 a of the connecting portion 39 that is separated from the main body portion 31.

  The distance L1 between the main body 31 and the restricting portion 36 in the axial direction Z shown in FIG. 9 is such that the nut 2 can be disposed between the main body 31 and the restricting portion 36. It is slightly larger than the dimension L2 in the direction Z.

  Each pressing portion 37 is a leaf spring that presses the nut 2 against the main body portion 31 in the axial direction Z. The front end of each pressing portion 37 has an engaging convex portion 38 that protrudes in the axial direction Z toward the direction close to the first through hole 320.

  As shown in FIG. 2, the engaging convex portion 38 and the engaging concave portion 22 are formed in the vertical direction Y and the horizontal direction X of the nut 2 with respect to the holding member 3 so that the screw hole 20 can be seen on the surface side through the second through hole 327. The positioning means 50 for determining the position of the head is configured (see FIG. 3).

  In the positioning state in which the position of the nut 2 with respect to the holding member 3 is determined by the positioning means 50, the shaft center 328 of the second through hole 327 and the shaft center 200 of the screw hole 20 are aligned as shown in FIG. The screw holes 20 appear on the surface side through the second through holes 327, and the protrusions 21 appear on the surface side through the first through holes 320, respectively.

  In the vertical direction Y in the positioning state, the separation distance L3 between the peripheral edge 210 of the protrusion 21 and the peripheral edge 321 of the first through hole 320 is the peripheral edge 201 of the screw hole 20 and the peripheral edge of the second through hole 327. It is smaller than the separation distance L4 from the portion 329. Therefore, as shown in FIG. 11, when the nut 2 moves in the longitudinal direction Y with respect to the holding member 3 and the screw hole 20 comes close to the peripheral portion 329 of the second through hole 327, the peripheral portion 210 of the protruding portion 21. However, the screw hole 20 is not covered by the peripheral portion 329 of the second through-hole 327 because it contacts the peripheral portion 321 of the first through-hole 320.

  In the lateral direction X in the positioning state shown in FIG. 10, the separation distance L5 between the peripheral edge portion 210 of the protrusion 21 and the peripheral edge portion 321 of the first through hole 320 is equal to the peripheral edge portion 201 of the screw hole 20 and the second transparent hole. It is smaller than the distance L6 from the peripheral edge 329 of the hole 327. Therefore, as shown in FIG. 12, when the nut 2 moves in the lateral direction X with respect to the holding member 3 and the screw hole 20 comes close to the peripheral portion 329 of the second through hole 327, the peripheral portion 210 of the protruding portion 21. Is in contact with the peripheral edge portion 321 of the first through hole 320.

  According to the floating nut 1 according to the present invention, the engaging convex portion 38 and the engaging concave portion 22 are formed between the nut 2 and the pressing portion 37 of the holding member 3, and the surface side is formed through the second through hole 327. Since the positioning means 50 for determining the position of the nut 2 in the vertical direction Y and the horizontal direction X with respect to the holding member 3 is provided so that the screw hole 20 can be seen in the screw hole 20, the engagement convex portion 38 and the engagement concave portion 22 are engaged with each other. In this case, the position of the nut 2 with respect to the holding member 3 can be determined. On the other hand, when the engagement between the engaging convex portion 38 and the engaging concave portion 22 is released, the nut with respect to the holding member 3 is determined. 2 can move in the vertical direction Y and the horizontal direction X.

  In addition, the nut 2 protrudes from the surface side, and in a state where the position of the nut 2 in the vertical direction Y and the horizontal direction X with respect to the holding member 3 is determined by the positioning means 50, the nut 2 moves to the surface side through the first through hole 320. When the screw hole 20 is close to the peripheral edge portion 329 of the second through hole 327, the protruding portion 21 that appears is brought into contact with the peripheral edge portion 321 of the first through hole 320. Can be prevented from being hidden by the peripheral edge 329 of the second through hole 327. In addition, the screw hole 20 is prevented from being hidden by the peripheral edge 329 of the second through-hole 327 due to the contact between the protrusion 21 disposed inside the first through-hole 320 and the peripheral edge 321 of the first through-hole 320. Therefore, since the space where the holding member 3 is located on the surface side of the nut 2 can be used effectively, the dimension of the nut 2 and the holding member 3 in the axial direction Z does not increase. Therefore, the miniaturization of the floating nut 1 in the axial direction Z can be facilitated.

  Furthermore, since the position of the engagement recess 22 on the back surface side of the nut 2 and the position of the protrusion 21 on the surface side of the nut 2 match in the vertical direction Y and the horizontal direction X, the engagement recess 22 and the protrusion 21 are It can be easily formed by half punching.

  Further, since the first through-hole 320 and the second through-hole 327 are formed in the main body 31 in a continuous manner, the first through-hole 320 and the second through-hole 327 are simultaneously formed by punching, for example. Therefore, the formation of these through holes 320 and 327 can be facilitated.

  As shown in FIG. 13, such a floating nut 1 is used, for example, when a handrail 62 is attached to a side wall panel 61 of a train via an attachment fitting 63. Specifically, when the mounting bracket 63 is attached to the side wall panel 61 with the screws 64, the relative positions of the through hole 61a of the side wall panel 61 and the through hole 63a of the mounting bracket 63 do not match due to dimensional errors or the like. There is.

  In such a case, the through hole 61a of the side wall panel 61 is formed larger than a predetermined dimension, and the through hole 65 is formed in the side wall panel 61. First, the through hole 65 of the side wall panel 61 and the floating nut are formed. 1 through-hole 34 is matched.

  Next, the tip of the screw 66 is inserted into the through hole 65, the tip of the screw 66 is screwed to the female screw 34 a, and the floating nut 1 is attached to the side wall panel 61 with the screw 66.

  Next, the through hole 63 a of the mounting bracket 63 and the through hole 61 a of the side wall panel 61 are matched. At this time, even if the through hole 61a and the through hole 63a do not coincide with each other, the engagement between the engagement convex portion 38 and the engagement concave portion 22 of the floating nut 1 is released, and the nut 2 with respect to the holding member 3 is released. Can be moved in the vertical direction Y and the horizontal direction X. Therefore, by moving the nut 2 with respect to the holding member 3, the through-hole 63 a of the mounting bracket 63 and the screw hole 20 of the nut 2 can be matched, and the mounting bracket 63 is connected to the side wall via the floating nut 1. It can be easily attached to the panel 61.

Second Embodiment
FIG. 14 is a perspective view from the back side of the floating nut 100 according to the second embodiment of the present invention. Since the basic configuration of the present embodiment is the same as that of the first embodiment, the same portions are denoted by the same reference numerals as those of the first embodiment, and the description thereof will be omitted and only differences will be described below. To do.

  This floating nut 100 is provided with a boss 29 on the peripheral edge 201 of the screw hole 20. The boss 29 protrudes from the back side of the nut 2 and is formed so as to extend in the axial direction Z.

  According to this floating nut 100, the boss 29 extending in the axial direction Z is formed on the peripheral edge 201 of the screw hole 20 from the back side of the nut 2, and is fastened to the floating nut 1. Fastening with the screw 64 can be ensured.

  The floating nuts 1 and 100 can be appropriately changed within the scope of the present invention, and are not limited to the above embodiment. For example, in the above embodiment, the nut 2 is described as a rectangular plate, but the shape can be changed as appropriate. Moreover, although the example which forms the nut 2 and the holding member 3 with a metal was shown, it can also be formed, for example with a thermoplastic or thermosetting synthetic resin.

  In the above embodiment, the first through hole 320 and the second through hole 327 are formed in the main body 31 in a continuous manner. However, the first through hole 320 and the second through hole 327 are described as follows. You may form in the main-body part 31 separately.

  Further, in the above embodiment, the pair of first through holes 320 are formed in the main body portion 31, but the number of the first through holes 320 is not limited to two, and three or more may be formed. One may be formed.

DESCRIPTION OF SYMBOLS 1 Floating nut 2 Nut 3 Holding member 20 Screw hole 21 Projection part 22 Engaging recessed part 31 Main body part 38 Engaging convex part 50 Positioning means 100 Floating nut 320 First through-hole 321 Peripheral part 327 Second through-hole 329 Peripheral part X Horizontal Direction Y Vertical direction Z-axis direction

Claims (3)

A plate-like nut having a vertical direction and a horizontal direction, and having a screw hole along an axial direction orthogonal to the vertical direction and the horizontal direction, respectively, and restricting the nut from moving in the axial direction, A floating nut comprising a holding member for holding the nut so as to allow movement in the vertical direction and the horizontal direction,
The holding member includes a main body portion having a first through hole and a second through hole larger than the screw hole, and a pressing portion that presses the nut against the main body portion in the axial direction.
An engaging convex portion and an engaging concave portion are formed between the pressing portion and the nut, and the vertical position of the nut with respect to the holding member so that the screw hole can be seen on the surface side through the second through hole. Positioning means for determining the direction and the position in the lateral direction,
The protrusion protruding from the surface side of the nut and appearing on the surface side through the first through hole in a state where the positioning means determines the position of the nut in the vertical direction and the horizontal direction with respect to the holding member. Set up a section,
The protrusion, when the threaded hole is close to the periphery of the second through hole is to abut against the periphery of the first hole,
The nut is formed flat on the front side and the back side except for the screw hole, the protrusion, and the engagement recess,
The floating nut the axial dimension of the protrusion may be smaller than the axial dimension of the body portion. The engaging convex portion is formed on the pressing portion, while the engaging concave portion is formed on the back side of the nut,
The floating nut according to claim 1, wherein the position of the engagement recess and the position of the protrusion match in the vertical direction and the horizontal direction. The second through hole is formed in a circular shape similar to the screw hole, while the first through hole is continuous so as to extend radially outward from the axis of the circular second through hole. The floating nut according to claim 1 or 2 , wherein the floating nut is formed in such a manner.

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