JP2005185579A - Object attaching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a object attaching device capable of preventing an object from rotating in attaching the object to a support body using a bolt. <P>SOLUTION: The object attaching device for attaching the object 2 to the support body 1 has a fastening mechanism 5 selectively securing the object 2 to a securing position FP set in the support body 1 using the bolt 52, and a pair of notch-and-protrusion engaging portions 6 formed between the support body 1 and the object 2 so as to be positioned at both the sides of the bolt 52 pressedly engaged with each other by the fastening force of the fastening mechanism 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an object mounting device on a shelf placed on a desk or the like, for example.

  Conventionally, shelves are known that are formed by placing a shelf between columns. For example, like what is described in Patent Document 1, the locking piece formed on the side surface of the bracket is fitted and locked in the locking hole formed on the side surface of the column, and the rear end portion of the bracket is folded and held. There is a bracket device in which a plate is formed, the holding plate is brought into contact with the back surface of the column, and the holding plate is fixed to the back surface of the column with a bolt. Further, in this bracket device, in order to prevent the rear end from lifting up with the locking piece as a fulcrum when a load is applied to the front end of the bracket, the rear end of the bracket is mounted on the horizontal beam member between the columns. It is in contact with the lower end surface.

In this bracket device, by adopting such a configuration, it is possible to reduce rattling in a state where the bracket is attached to the support column and to ensure sufficient strength against the bending moment in the vertical direction. ing.
JP 2002-142891 A

  However, in the case of such a configuration, when manufacturing the bracket from the sheet metal, in addition to the bending process for forming the receiving plate for supporting the shelf board, the bracket is engaged with the process for bending the rear end part and the side surface. The manufacturing process became complicated because it required processing to form pieces.

  In addition, as described above, a crosspiece member is required to lift the rear end of the bracket, that is, to stop the rotation of the bracket around the locking piece. However, in the case where a plurality of bracket mounting positions are set on the columns at predetermined intervals, it is difficult to provide a horizontal beam member corresponding to each bracket mounting position. Therefore, it is necessary to effectively prevent the bracket from rotating.

  In view of the above-described problems, the present invention is intended to provide an object attachment device that can prevent an object from rotating when the object is attached to a support with a bolt.

  That is, the object attachment device of the present invention is for attaching an object to a support, and a tightening mechanism for selectively fixing the object using a bolt at an attachment position set on the support; And a pair of concave and convex engaging portions provided between the support and the object so as to be positioned on both sides of the bolt, and making a pair of pressure-engaging engagements by the tightening force of the tightening mechanism. And

  According to such a configuration, when the tightening mechanism fixes the object at the mounting position, the concave and convex engaging portions provided in pairs on both sides of the bolt are pressed and engaged by the tightening force of the tightening mechanism. Positioning with respect to the support and suppressing its rotation. For this reason, the object is attached in a state where the desired positional relationship is maintained with respect to the support.

  The tightening mechanism includes a plurality of screw holes provided in the support body at predetermined intervals, and a bolt that is selectively screwed into any of these screw holes to tighten the object to the support body. Then, it becomes possible to attach an object to a desired attachment position by screwing a bolt into a desired screw hole. Therefore, it is possible to facilitate the attachment work of the object to the support.

  In the configuration in which the concave-convex engaging portion includes a concave portion provided on one of the support and the object, and a convex portion that is provided on the other side and has a tapered shape that can be in close contact with the opening edge of the concave portion. When the convex portion comes into close contact with the opening edge of the concave portion, the pressure engagement is firmly performed. Therefore, the rotation of the object can be effectively prevented.

  In the above configuration, the support is provided with a plurality of recesses at predetermined intervals, and a screw hole is provided in a portion located between the recesses of the support so that the bolt of the tightening mechanism is inserted into the object. If the projection is provided at a position sandwiching the bolt insertion hole of the object, the bolt is screwed into the screw hole via the bolt insertion hole. Can be easily press-fitted into the recess.

  In addition, a plurality of screw holes are provided in the support at predetermined intervals, a bolt insertion hole through which the bolt of the tightening mechanism is inserted is provided in the object, and the protrusion is formed at a position sandwiching the bolt insertion hole of the object. For mounting, the screw holes located on both sides of the screw hole into which the bolt that has passed through the bolt insertion hole is screwed are made to function as the concave portion of the concave and convex engaging portion. There is no need to separately form the screw hole and the concave portion of the concave-convex engaging portion. Therefore, it becomes possible to simplify the manufacturing process of a support body.

  Specifically, the support is a support and the object is a bracket that receives a shelf board to be supported by the support. In such a configuration, since the bracket is attached to the column without rotating, it is possible to reliably prevent the shelf board from being inclined.

  The present invention is implemented in the form as described above, and has the following effects.

  That is, in the object mounting device according to the present invention, when an object is attached to a support using a bolt, the tightening force of the tightening mechanism acts on the uneven engagement portions located on both sides of the bolt, and the uneven engagement portion is pressed against the support. By engaging, it is possible to prevent the object from rotating with respect to the support. Therefore, attachment of the object to the support can be facilitated.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  In this embodiment, as shown in FIG. 1, as an object mounting device, for example, a device applied to a shelf SH used on a top plate TP of a desk DSK will be described.

  The shelf SH includes two support pillars 1 that are support bodies constituting the object attachment device, a bracket 2 that is an object to which each support pillar 1 is attached, and a shelf board 3 that is spanned between the brackets 2 and fixed to the bracket 2. And.

  The support column 1 is mainly made of metal, and includes a base portion 11 and a column portion 12 provided perpendicular to the upper surface of the base portion 11 as shown in FIGS. The column 12 includes a lower column 12a provided integrally with the base 11, an upper column 12b inserted so as to expand and contract to the lower column 12a, and a lower column 12a of the upper column 12b disposed at the upper end of the lower column 12a. And a sleeve member 12c made of a synthetic resin cylindrical body having a through-hole through which a bolt 4 for fixing the upper column 12b is inserted, and a synthetic resin unit attached to the lower end of the upper column 12b. The sliding member 12d. The lower column 12a and the upper column 12b are made of, for example, a hollow member having an oval cross-sectional shape, and the upper column 12b is inserted into the lower column 12a so that its outer surface is in contact with the sleeve member 12c and is slidable. The In this case, the sliding member 12d attached to the front side of the lower end of the upper column 12b is in contact with the inner surface of the lower column 12a, thereby reducing the friction during the movement of the upper column 12b. That is, the sliding member 12d prevents the lower end of the upper column 12b from coming into contact with the inner surface of the lower column 12a when the upper column 12b is lowered. Therefore, the upper column 12b is prevented from being inclined and inserted into the lower column 12a. A mounting plate 12e to which the upper shelf 3a is fixed is integrally provided at the upper end of the upper column 12b, and a stopper 12f for stopping the lowering of the upper column 12b is provided near the upper end, and the lower column 12a. A stopper 12g for stopping the lowering of the bracket 2 is provided in the vicinity of the lower end of the bracket.

  The opposite side surface on the side where the shelf board 3 is built when assembled as the shelf SH, that is, the inner side wall 12aa of the lower column 12a is paired with the screw holes 51 constituting the tightening mechanism 5 at a predetermined interval. Concave portions 61 constituting the concave-convex engaging portions 6 are alternately formed. The screw hole 51 and the recessed part 61 are formed in alignment in the vertical direction at substantially the center in the width direction of the flat plate portion of the side wall 12aa of the lower column 12a. That is, when looking at the positional relationship with the recess 61 centered on one screw hole 51, the recess 61 is spaced equidistant from the screw hole 51 on both the upper and lower sides of the one screw hole 51, respectively. It has a configuration provided. Therefore, one mounting position FP is set by the screw hole 51 and the concave portion 61 positioned above and below the screw hole 51, a plurality of screw holes 51 are provided at a predetermined interval, and the concave portion 61 is the screw hole 51. By arranging them on both the upper and lower sides, a plurality of attachment positions FP are set in the vertical direction of the side wall 12aa of the lower column 12a.

  Specifically, the recess 61 is formed by a through hole provided in the inner side wall 12aa of the lower column 12a. In the case of this embodiment, the shape of the opening edge 61a of the concave portion 61 is circular, and corresponds to the shape of the convex portion 62 described later. As will be described later, a bolt 52 constituting the tightening mechanism 5 is screwed into the screw hole 51, and a convex portion 62 provided on the bracket 2 and constituting the concave-convex engaging portion 6 is provided in the concave portion 61. Are in pressure contact engagement.

  The bracket 2 is made of, for example, a sheet metal, and is manufactured by being punched into a predetermined shape by pressing and bending. As shown in FIGS. 4 to 6, specifically, the bracket 2 is vertically downward from an upper plate portion 21 to which the shelf plate 3 is fixed and an outer edge 21 a forming a straight line of the upper plate portion 21. And a side plate portion 22 that extends. The upper plate portion 21 is provided with bolt holes 21c through which the mounting bolts 7 of the shelf plate 3 are inserted at three locations along the inner edge 21b located on the inner side when the bracket 2 is attached to the support column 1.

  The side plate portion 22 has a shape that tapers downward when attached to the shelf SH, and its maximum width dimension is the depth dimension of the lower column 12a of the column 1, that is, the width of the flat plate portion of the side wall 12aa. It is set to be almost the same as the size, and is set so as to be hidden by the lower column 12a. Further, the side plate portion 22 is provided with one bolt insertion hole 22a corresponding to the screw hole 51 of the support column 1, and in the vertical direction passing through the center of the bolt insertion hole 22a, that is, with respect to the surface of the upper plate portion 21. On the vertical straight line, convex portions 62 constituting the concave and convex engaging portions 6 are provided at two positions so as to be located on both sides of the bolt insertion hole 22a, that is, at an equal distance from the bolt insertion hole 22a. . The bolt insertion hole 22a and the convex portion 62 are formed together at the time of pressing. The bolt insertion hole 22a has an inner diameter larger than the outer diameter of the bolt 52 so that the bolt 52 can be easily inserted. The convex portion 62 has a smaller outer dimension than the proximal end portion 62b as it is closer to the distal end 62a, that is, has a tapered shape. The outer dimension in the vicinity of the proximal end portion 62b is larger than the inner method of the opening edge 61a of the concave portion 61. It is. The convex part 62 is hemispherical in this embodiment. In addition to the hemispherical shape, the shape of the convex portion 62 may be, for example, a semi-elliptical spherical shape, a truncated cone shape, or an elliptical truncated cone shape.

  In such a configuration, the shelf SH is assembled by attaching the bracket 2 to each of the two columns 1 using the bolts 52 and fixing both ends of the shelf board 3 to the bracket 2. The bracket 2 is attached by selectively screwing the bolt 52 into any one of the screw holes 51. First, the bolt insertion hole 22a with the upper plate portion 21 positioned in the upper direction of the support column 1 is mounted. Is placed so as to overlap the screw hole 51 corresponding to the desired mounting position FP of the lower column 12a. At this time, the respective convex portions 62 of the bracket 2 are provided on the lower column 12 a and come into contact with the respective concave portions 61 located on both the upper and lower sides of the selected screw hole 51. In this state, the bolt 52 is inserted into the bolt insertion hole 22a, the bolt 52 is screwed into the screw hole 51, and the bolt 52 is rotated and tightened. In the tightened state, that is, in the state in which the bolt 52 is rotated, the concave portion 61 and the convex portion 62 are lightly unevenly engaged, so that the bracket 2 rotates in accordance with the rotation of the bolt 52. Absent.

  Further, by further tightening the bolts 52, the bolts 52 are rotated in contact with the side plate portions 22 of the bracket 2, and the side plate portions 22 of the bracket 2 are pushed toward the lower column 12 a of the column 1. Due to the movement of the side plate portion 22, the convex portion 62 comes into close contact with the opening edge 61 a of the concave portion 61 in a state where pressure is applied. In this case, the convex portions 62 are on both sides of the bolt insertion holes 22a through which the bolts 52 are inserted, and the concave portions 61 are on both sides of the screw holes 51 into which the bolts 52 are screwed. The parts 62 are press-engaged with the respective recesses 61 by the same tightening force of the bolts 52. The side plate portion from which the convex portion 62 of the bracket 2 protrudes in a state in which the bolt 52 is completely tightened, that is, in a state where the concave and convex engaging portions 6 are formed on both sides of the bolt 52 by the concave portion 61 and the convex portion 62. The outer surface of 22 does not contact the side surface 12aa of the lower column 12a (shown in FIG. 7). Therefore, a gap is formed between the outer surface of the side plate portion 22 and the side surface 12aa of the lower column 12a. As described above, the concave portion 61 and the convex portion 62 are press-fitted and engaged, so that the tightening force of the bolt 52 is limited before the side plate portion 22 of the bracket 2 contacts the side wall 12aa of the lower column 12a. There is no tightening. For this reason, it is possible to prevent a problem that the bolt 52 is overtightened with excessive torque to destroy the screw thread or the screw hole 51 is damaged.

  Therefore, when the bracket 2 is attached to the column 1, the bracket 2 can be attached by one bolt 52 at a desired attachment position FP among the plurality of attachment positions FP. In this case, the recesses 61 provided on the lower column 12a of the support column 1 and the protrusions 62 provided on the bracket 2 are press-engaged to form a concave / convex engaging portion 6 to form a pair. Can be prevented from rotating around the bolt 52. Therefore, even when the bolt insertion hole 22a of the bracket 2 is formed to be relatively large with respect to the bolt 52, the bracket 2 is surely kept almost horizontal without the upper plate portion 21 being inclined. It can be attached to the column 1.

  As described above, in the case where the concave and convex engaging portions 6 that are paired in the vertical direction of the support column 1 are provided on the side wall of the support column 1, the lower column 12a and the upper column 12b have an oval cross-sectional shape. In addition, for example, a circular shape, an elliptical shape, or the like may be used.

  Next, a second embodiment will be described. In the second embodiment, the constituent elements other than the lower pillar of the support are the same as those in the above-described embodiment, and the same reference numerals are given to the same constituent elements.

  In the second embodiment, the screw hole 51 is made to function as the concave portion 61 of the concave-convex engaging portion 6. That is, in the first embodiment, since the screw holes 51 are provided at predetermined intervals and the concave portions 61 are provided on both sides of each screw hole 51, the first embodiment differs from the lower pillar 12a of the support column 1. Processing is required. On the other hand, if the screw hole 51 is made to function as the recess 61, the process as the recess 61 is not necessary, and the manufacturing process can be simplified.

  Specifically, as shown in FIG. 8, a plurality of screw holes 51 are provided at predetermined intervals in the lower column 112a. The predetermined interval in this case may be the same as or different from that in the first embodiment. In the case of this embodiment, among the screw holes 51, the screw holes 51 located on both sides of the screw hole 51 into which the bolt 52 is screwed function as the recess 61. In this case, there is a possibility that the portion of the screw hole 51 where the convex portion 62 of the bracket 2 is pressed, that is, the opening edge 51a of the screw hole 51 is deformed by pressure or friction. Therefore, since the opening edge 51a of the screw hole 51 is deformed, the bolt 52 may be difficult to be screwed. Therefore, for example, the opening edge 51a of the screw hole 51 is seated and the convex portion 62 is pressed. In this case, it is preferable that the screw hole 51 is formed so as not to be affected by the above.

  With respect to such a screw hole 51, the convex portion 62 of the bracket 2 is provided on both sides of the bolt insertion hole 22a, that is, at a position sandwiching the bolt insertion hole 22a. Since it functions as the recessed part 61 of the part 6, each convex part 62 is set to the position which opened the same space | interval as the predetermined space | interval of the screw hole 51 from the bolt insertion hole 22a. Therefore, each convex part 62 and the bolt insertion hole 22a are arranged on a straight line at the predetermined interval like the screw hole 51 as in the first embodiment. In addition, since the outer dimension of the convex portion 62 is press-engaged at the opening edge 51a of the screw hole 51, the base end portion 62b of the convex portion 62 is larger than the inner diameter of the screw hole 51, and the tapered tip end thereof. In the vicinity of 62a, the dimensions are almost the same as the inner diameter of the screw hole 51. In the case where the opening edge 51a of the screw hole 51 is seated, it is set to be larger than the inner method of the seating so that the convex portion 62 is press-engaged only at the seating portion.

  With such a configuration, only the screw hole 51 needs to be provided when the lower column 112a is manufactured, and thus the manufacturing process can be simplified. Moreover, since it is not necessary to form the recessed part 61 between the screw holes 51 compared with said 1st embodiment, it can replace with the recessed part 61 and the screw hole 51 can be formed. As a result, the same number of screw holes 51 as the total number of the screw holes 51 and the recesses 61 in the first embodiment can be provided, and more attachment positions FP can be set. Therefore, when attaching the bracket 2, it is not necessary to distinguish between the screw hole 51 and the recess 61, so that it is easy to select a desired attachment position and work can be performed quickly.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in each of the above-described embodiments, the column 61 is provided with the concave portion 61 and the bracket 2 is provided with the convex portion 62 to form the concave / convex engaging portion 6. However, the column is provided with the convex portion and the bracket has the concave portion. May be provided.

  Moreover, although what provided the uneven | corrugated engaging part 6 by arranging in the vertical direction of the support | pillar 1 was demonstrated, the uneven | corrugated engaging part 6 should just be provided in the both sides of the volt | bolt 52 which comprises a tightening mechanism, and is provided in the vertical direction. It is not limited. For example, in the horizontal direction perpendicular to the vertical direction of the column 1, that is, in the lateral direction, the recesses 61 are provided on both sides of the bolt 52, that is, on both sides of the screw hole 51, and the projections 62 are provided on both sides of the bolt insertion hole 22 a It may be.

  Furthermore, the attachment position FP may be set at only one place with respect to the support column. In this case, with respect to one screw hole 51 constituting the tightening mechanism, a concave portion or a convex portion constituting the concave-convex engaging portion is provided in both the vertical direction and the horizontal direction.

  In addition, as shown in FIGS. 9 and 10, the concave portion may be a groove 8 in which the convex portion 62 can be pressed and engaged. That is, as in the above-described embodiment, in the case where the convex portion 62 is provided on the bracket 2, the groove 8 as the concave portion is provided on the side wall 212aa of the lower column 212a of the column and the vertical axis thereof is aligned with the vertical direction of the column. It is. Specifically, the groove 8 is formed over the entire length of the lower column 212 a with the width W set larger than the diameter of the screw hole 51 and the center in the width direction coincided with the center of the screw hole 51. For this reason, the screw hole 51 is opened to the bottom surface 8 a of the groove 8. Further, the depth of the groove 8 may be set such that the tip 62 a of the convex portion 62 does not contact the bottom surface 8 a of the groove 8 when the convex portion 62 comes into pressure contact with the opening edge 8 b of the groove 8.

  If the concave portion is formed by the groove 8 as described above, the dimensional accuracy with respect to the bolt insertion hole 22a when the convex portion is provided can be relaxed, and the yield of the bracket 2 can be improved. In other words, in order for the convex portion 62 to be press-engaged with the groove 8, it may be provided on both sides of the bolt insertion hole 22a, that is, vertically, on a straight line passing through the center of the bolt insertion hole 22a. Even if an error occurs in the gap with the hole 22a, the groove 8 forms a continuous concave portion. Therefore, such a vertical error is absorbed and the convex portion 62 and the groove 8 are surely engaged with each other by pressure contact. It will be a thing.

The perspective view which shows the 1st Embodiment of this invention. The longitudinal cross-sectional view of the embodiment. The rear view of the principal part centering on the support | pillar of the embodiment. The side view of the bracket of the embodiment. The top view of the bracket of the embodiment. The front view of the bracket of the embodiment. Sectional drawing of the principal part which shows the attachment state of the bracket of the embodiment. FIG. 7 is a view corresponding to FIG. 7 of the second embodiment of the present invention. The side view of the lower pillar which shows the principal part of the modification of the recessed part in embodiment of this invention. FIG. 7 is a view corresponding to FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Support | pillar 2 ... Bracket 3 ... Shelf board 5 ... Tightening mechanism 6 ... Concave and convex engagement part 22a ... Bolt insertion hole 51 ... Screw hole 52 ... Bolt 61 ... Concave part 61a ... Opening edge 62 ... Convex part FP ... Installation position

Claims (6)

An object attachment device for attaching an object to a support,
A tightening mechanism for selectively fixing the object at a mounting position set on the support using a bolt;
And a pair of concave and convex engaging portions provided between the support and the object so as to be positioned on both sides of the bolt, and making a pair of pressure-engaging engagements by the tightening force of the tightening mechanism. An object mounting device. The tightening mechanism includes a plurality of screw holes provided in the support body at predetermined intervals, and a bolt for selectively screwing into any one of these screw holes and tightening the object to the support body. The object support device according to claim 1, wherein The concave-convex engaging portion includes a concave portion provided on one of the support and the object, and a convex portion provided on the other side and having a tapered shape so as to be in close contact with an opening edge of the concave portion. 3. The object mounting device according to 1 or 2. A plurality of recesses are provided at a predetermined interval in the support body, and screw holes are provided in parts located between the recesses of the support body, and bolt insertion holes through which bolts of the tightening mechanism are inserted into the object are provided. The object mounting device according to claim 3, wherein the protrusion is provided at a position sandwiching the bolt insertion hole of the object. A plurality of screw holes are provided in the support at predetermined intervals, a bolt insertion hole through which the bolt of the tightening mechanism is inserted is provided in the object, and the convex portion is provided at a position sandwiching the bolt insertion hole of the object. The object mounting device according to claim 3, wherein the screw holes located on both sides of the screw holes to which the bolts passed through the bolt insertion holes are screwed are made to function as concave portions of the concave and convex engaging portions. 6. The object mounting device according to claim 1, 2, 3, 4, or 5, wherein the support is a support and the object is a bracket that receives a shelf board to be supported by the support.

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