JP5391032B2 - Top plate height adjustment device - Google Patents

Description

  The present invention relates to a height adjustment device for a top plate such as an article storage fixture.

  In offices, for example, the height of the top plate of an article storage fixture such as a cabinet and the height of the top plate of a desk, table, etc. used as an accessory are aligned with each other to form a wide work surface Often done. The applicant of the present application has devised a height adjustment device that can easily adjust the height of the top plate of the article storage fixture according to the height of the top plate of a desk, etc. (For example, see Patent Documents 1 and 2).

Japanese Patent No. 3690515 JP 2009-90033 A

  In the top plate height adjusting devices described in Patent Documents 1 and 2, both of the top surfaces of the fixture main body are provided with deeper support holes for the height adjustment of the top plate. Since the support pins for adjusting the height or the lower part of the adjustment shaft are fitted, it is necessary to increase the processing man-hours of the support holes and increase the thickness of the upper surface plate, which increases the cost.

  Moreover, in the height adjustment apparatus of the top plate described in Patent Document 1, one end portion of the support pin that supports the top plate so that the height can be adjusted is provided on the concave hole on the top surface of the cabinet body or the bottom surface of the top plate. Since it is only loosely fitted in the downwardly-facing concave hole, the top plate may rattle in the vertical direction, or the top plate may come off the cabinet body when carrying the cabinet.

  In the height adjustment device for the top plate described in Patent Document 2, the upper surface of the operation member screwed to the adjustment shaft for height adjustment is detachably engaged with the engagement hole on the upper surface of the fixture body. Since it is suppressed by the retaining member and is prevented from being detached from the concave hole of the fixture main body, there is no possibility that the above-described problem occurs.

  However, the retaining member is attached to the upper surface of the fixture body with the engagement claws of the pair of elastically deformable engagement pieces elastically engaged with the engagement holes of the fixture body. When some external force is applied to the combined piece, the engaging claw may be detached from the engaging hole and the retaining member may come off, and further improvement has been demanded.

  In addition, since the operation knob portion of the operation member is located between the pair of engaging pieces facing each other and the opposing outer peripheral surface is covered with the engagement piece, the operation knob portion is rotated with a finger. In this case, there is a problem that the finger hits the engagement piece and the operability of the operation member is poor.

  The present invention has been made paying attention to such problems, and it is not necessary to process a support hole for fitting the adjustment shaft in the fixture body, and the adjustment shaft and the operation member are securely held in the fixture body. Accordingly, an object of the present invention is to provide a height adjustment device for the top plate that can stably support the top plate by the main body of the fixture and can further improve the rotation operability of the operation member. It is said.

In order to solve the above problems, the height adjustment device for the top plate of the present invention is:
An adjustment shaft having a male screw on the outer peripheral surface is protruded downward at a plurality of locations on the lower surface of the top plate that is spaced above the fixture body, and the adjustment shaft is provided on the upper surface of the fixture body that faces each adjustment shaft. An operation member having a shaft hole to be freely fitted and having at least a part of the shaft hole as a female screw portion is placed, the adjustment shaft is screwed into the female screw portion of each operation member, and the plurality of operations facing each other The member is rotatably held by both end portions of a pressing member fixed to the upper surface of the fixture body, and the operation member is rotated around the adjustment shaft to move the adjustment shaft relative to the operation member in the vertical direction. Thus, the height of the top plate can be adjusted.
According to this feature, the adjustment shaft loosely fitted in the shaft hole of the operation member and screwed into the female screw portion can be moved up and down with respect to the operation member simply by rotating the operation member placed on the upper surface of the fixture body. Since the height of the top plate is adjusted, a deep support hole for fitting the adjustment shaft is processed on the upper surface of the fixture body, or the thickness of the members constituting the upper surface of the fixture body is increased. There is no need to reduce the cost. In addition, the plurality of operation members and the adjustment shaft screwed to the operation members are simultaneously and securely held by both ends of the presser member fixed to the upper surface of the fixture body, so that the top plate is stably supported by the fixture body. can do. Further, the operation member is exposed to a large portion other than the portion held by the presser member, and the rotation operability of the operation member by the finger is improved.

The top plate height adjusting device of the present invention is
The presser member is composed of a horizontal piece fixed to the upper surface of the fixture main body, and a presser piece having an outward inverted L-shaped cross section that stands up from both ends in the longitudinal direction of the horizontal piece. The adjustment shaft is inserted into the upper member, and the upper surface of the operation member is pressed by the lower surface of the upper piece.
According to this feature, the upper surface of the operating member is pressed by the upper piece of the pressing piece of the outward L-shaped cross section that stands up from both ends of the horizontal piece of the holding member of the inverted L-shaped cross section, and the outer peripheral surface of the operating member The outer peripheral surface other than the surface on which the presser member is disposed is greatly exposed, and the operability of turning the operation member by the finger is improved. In addition, since the horizontal piece, which is the fixing part of the presser member, is fixed to the upper surface of the fixture body away from the upper piece, the operator's finger may accidentally touch the horizontal piece even when the operation member is operated. There is no possibility that the presser member comes off.

The top plate height adjusting device of the present invention is
A member that constitutes the upper surface of the fixture main body by fixing nuts to a plurality of locations in the longitudinal direction on the lower surface of the horizontal piece of the presser member, and fitting the nuts to the upper ends of the through holes provided on the upper surface of the fixture main body. The presser member is fixed to the upper surface of the fixture body by screwing a fixing screw inserted into the through-hole from below into the nut.
According to this feature, the presser member is fixed by the fixing screw from below the member constituting the upper surface of the fixture body, and the screw or the like for fixing the presser member to the upper surface of the fixture body is not exposed on the upper surface of the presser member. So it looks better.

The top plate height adjusting device of the present invention is
The upper surface of the fixture main body is provided with a concave hole in which the lower end portion of the operation member is rotatably fitted.
According to this feature, the operation member can be easily positioned and placed on the upper surface of the fixture body, and the operation member is reliably prevented from being displaced.

The top plate height adjusting device of the present invention is
The upper end portion of the shaft hole provided in the operation member is non-circular, and the nut that is fitted to the non-circular shaft hole while being rotated is used as the female screw portion.
According to this feature, the upper end portion of the shaft hole of the operating member is made non-circular, and the female screw portion into which the adjustment shaft is screwed is obtained by simply locking the nut to the non-circular shaft hole. Therefore, it is not necessary to provide the operating member with a long female screw hole in the vertical direction, and the processing cost is reduced.

It is a perspective view of the article storage fixture provided with one Example of this invention, and the table used incidentally to it. It is a front view of an article storage fixture. Similarly, it is a plan view. FIG. 4 is an enlarged longitudinal side view taken along line IV-IV in FIG. 3. FIG. 5 is a partial enlarged cross-sectional view of FIG. 4. It is sectional drawing when the height of a top plate is made high from the state of FIG.

  EMBODIMENT OF THE INVENTION The form for implementing the height adjusting device of the top plate which concerns on this invention is demonstrated below based on an Example.

  A top plate height adjusting apparatus according to an embodiment will be described with reference to FIGS. FIG. 1 is a perspective view of an article storage fixture 1 provided with a height adjustment device for a top plate of the present invention, and a table 2 attached thereto, FIG. 2 is a front view of the article storage fixture, and FIG. FIG.

  The article storage fixture 1 has a horizontally long box-like fixture body 4 having a front surface opened and casters 3 attached to the four corners of the lower surface, and an upper surface of the upper surface plate 5 so as to be positioned above the upper surface plate 5. The top plate 7 is supported by four height adjusting devices 6 on the front, rear, left and right sides so that the height can be adjusted. The left-right dimension of the top plate 7 is slightly larger than the dimension that bisects the left-right dimension of the fixture body 4. Similarly, the front-rear dimension is slightly larger than the front-rear dimension of the top plate 5. Is aligned with the front end of the upper surface plate 5 and is supported by the upper surface plate 5 so that the rear end portion slightly protrudes behind the upper surface plate 5.

  As shown in the cross-sectional view of FIG. 4 and the enlarged cross-sectional view of FIG. 5, each height adjusting device 6 that supports the bottom surface of the four corners of the top plate 7 includes four adjusting shafts 8 facing up and down, Each operation member 9 and two left and right pressing members 10 that hold them are provided. A male screw 11 is formed on the outer peripheral surface excluding the upper end of the adjustment shaft 8. The upper end portion of the adjustment shaft 8 passes through the mounting plate 12 and is fixed to the mounting plate 12 by welding or the like.

  The upper end portion of the adjustment shaft 8 that protrudes from the mounting plate 12 is fitted into an upward concave hole 13 provided in the lower surface of the four corners of the top plate 7, and the mounting plate 12 is attached to the top plate 7 by a plurality of countersunk screws 14. By fixing to the lower surface, each adjustment shaft 8 is attached downward to the lower surface of the four corners of the top plate 7.

  The operation member 9 has a vertically long cylindrical shape in which a shaft hole 15 facing the up and down direction for inserting the adjustment shaft 8 is formed in the center portion, and an anti-slip process is applied to the outer peripheral surface. A small diameter cylindrical portion 16 is formed. The upper end portion of the shaft hole 15 is a non-circular hole 15a such as a hexagon having an enlarged diameter, and a nut 17 having a vertical dimension substantially equal to the depth of the non-circular hole 15a is stopped and fitted. ing.

  The small-diameter cylindrical portion 16 of each operation member 9 is rotatably fitted in a concave hole 18 formed on the upper surface of the upper surface plate 5 facing each adjustment shaft 8. Thereby, each operation member 9 is positioned on the upper surface of the upper surface plate 5 and is rotatably mounted.

  The left and right presser members 10 and 10 include a horizontal piece 19 that is slightly shorter than the distance between the front and rear operation members 9 and 9 and that is long in the front-rear direction, and a front-side inverted L-shape that stands up from both front and rear ends. And holding pieces 20, 20 having an inverted L-shaped cross section. The vertical dimensions of the front and rear pressing pieces 20 and 20 are such that the lower surfaces of the horizontal upper pieces 20a and 20a can come close to or lightly contact the upper surfaces of the front and rear operating members 9 and 9, respectively. An insertion hole 21 through which the front and rear adjustment shafts 8 and 8 can be inserted is formed in the front and rear upper pieces 20a.

  Nuts 22, 22 are fixed to the lower surfaces of the front and rear end portions of the horizontal piece 10 by welding or the like, and both nuts 22 are opposed to the concave holes 23, 23 formed on the upper surface of the upper surface plate 5. By fitting, the lower surface of the horizontal piece 10 is in close contact with the upper surface of the upper plate 5. Through holes 24, 24 are formed in the upper surface plate 5 below the front and rear concave holes 23, 23 so as to communicate with the concave holes 23, and can be manually inserted into the through holes 24 from below the upper surface plate 5. The upper ends of the fixing screws 25 and 25 (urea screws) are screwed into the nuts 22 and 22.

  Next, the assembly procedure of the height adjusting device 6 will be described. First, out of the four adjustment shafts 8 fixed to the lower surface of the top plate 7, the two adjustment shafts 8 and 8 opposed to the front and rear are respectively connected to the upper pieces 20a facing the front and the rear of both end portions of the pressing member 10, respectively. , 20 a are inserted through the insertion holes 21, and the nuts 22 fixed to the front and rear end lower surfaces of the horizontal piece 19 in the holding member 10 are fitted into the front and rear concave holes 23 of the upper surface plate 5.

  Next, the nut 17 of the operation member 9 is screwed onto the male screw 11 of each adjustment shaft 8 from below to an arbitrary position where the lower end of the adjustment shaft 8 does not protrude from the shaft hole 15.

  Next, the operation member 9 is rotatably mounted on the upper surface plate 16 by fitting the small-diameter cylindrical portion 16 at the lower end of each operation member 9 into the concave hole 18 of the upper surface plate 5.

  Next, the upper ends of the fixing screws 25, 25 inserted into the through holes 24 of the upper surface plate 5 from below are screwed into the front and rear nuts 22, 22 of the horizontal piece 19 of the pressing member 10 and tightened. Thereby, the pressing member 10 is fixed to the upper surface of the upper surface plate 5 between the front and rear operation members 9 and 9, and the lower surfaces of the front and rear upper pieces 20 a and 20 a are close to the upper surfaces of the front and rear operation members 9 and 9. Alternatively, the operation member 9 and the adjustment shaft 8 screwed to the operation member 9 are prevented from being lifted up and held on the upper surface of the upper surface plate 5.

  4 and 5 show a state in which the height of the top plate 7 is substantially at the lower limit position. To increase the height of the top plate 7 from this state, each operation member 9 is viewed in plan view. What is necessary is to rotate evenly clockwise. Then, as shown in FIG. 6, the adjustment shaft 8 moves upward with respect to the operation member 9, whereby the height of the top plate 7 is adjusted to be high. When it is desired to reduce the height of the top plate 7, the operation member 9 may be rotated counterclockwise in plan view. Therefore, the height of the top plate 7 of the article storage fixture 1 can be easily matched to the height of the top plate of the fixture such as the table 2 used as an accessory thereto.

  As shown in FIG. 3, in the vicinity of the left end portion and the center portion of the upper surface plate 5 of the fixture body 4, four spare recessed holes into which the small diameter cylindrical portion 16 at the lower end portion of the operation member 9 is fitted. 18 is provided so that the height adjusting device 6 can be mounted even when the top plate 7 is desired to be used on the left and right sides. These spare recessed holes 18 and 23 are well closed by a removable cover 26.

  More specifically, in this embodiment, the top plate 7 is provided closer to the right side of the top plate 5 of the article storage fixture 1, but the top plate 7 is provided on the left side of the top plate 5 of the article storage fixture 1. It can also be provided closer. When rearranging the top plate 7, first, the cover 26 attached to the top plate 5 is removed, and the spare concave holes 18 and 23 are opened.

  Further, the top plate 7, the adjustment shaft 8, the operation member 9, and the pressing member 10 can be collectively removed from the upper surface plate 5 by turning and removing the fixing screw 25 from the lower side of the upper surface plate 5. Next, the arrangement of the top plate 7 is changed to the left side of the upper surface plate 5, the presser member 10 is arranged corresponding to the spare concave holes 18 and 23, and the fixing screw 25 is inserted from the lower side of the upper surface plate 5. The fixing screw 25 is screwed into the nut 22 of the pressing member 10 through the through hole 24 (see FIG. 4).

  As described above, in the height adjusting device 6 of the present embodiment, only by rotating the operation member 9 placed by fitting the lower end portion into the concave hole 18 of the upper surface plate 5 of the fixture body 4, Since the adjustment shaft 8 loosely fitted in the vertical shaft hole 15 and screwed into the nut 17 moves up and down with respect to the operation member 9, the height of the top plate 7 is adjusted. In addition, it is not necessary to process a deep support hole for fitting the adjustment shaft 8 in the upper surface plate 5 of the fixture body 4 or to increase the thickness of the upper surface plate 5, thereby reducing the cost. Further, the operation member 9 is greatly exposed at a portion other than the portion held by the presser member 10, and the rotation operability of the operation member 9 by a finger is improved.

  Further, the operation member 9 opposed to the front and rear and the adjusting shaft 8 screwed to the operation member 9 are simultaneously and reliably held by the upper and lower pieces 20 a of the presser member 10 fixed to the upper surface plate 5. Can be stably supported by the fixture body 4.

  Furthermore, the operation members 9 and 9 that oppose each other in the front-rear direction are held by the upper pieces 20a and 20a facing the front and rear of the holding member 10 so that the outer peripheral surfaces of both operation members 9 are greatly exposed. Therefore, the operability of turning the operation member 9 with a finger is improved. Further, since the horizontal piece 19 which is a fixing part of the pressing member 10 is fixed to the upper surface plate 5 of the article storage fixture 1 while being separated from the upper piece 20a, even if the operation member 9 is operated, the operator's finger is not moved. There is no risk of inadvertently touching the horizontal piece 19, and there is no risk of the pressing member 10 coming off.

  Since the nut 17 is fitted to the upper end portion of the operation member 9 and the male screw 11 of the adjusting shaft 8 is screwed to the nut 17, it is not necessary to provide a long female screw hole in the vertical direction in the entire operation member 9. Cost is reduced.

  Since the holding member 10 is fixed to the upper surface of the upper surface plate 5 by screwing a fixing screw 25 inserted from below the upper surface plate 5 into the nut 22 fixed to the lower surface thereof, the holding member 10 is fixed to the upper surface of the pressing member 10. Screws are not exposed and appearance is improved.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the embodiment, in order to facilitate positioning of the operating member 9 or prevent displacement, the upper surface plate 5 is provided with a concave hole 18, and the lower end portion of the operating member 9 is provided in the concave hole 18. However, it is also possible to simply place the operation member 9 having a flat lower surface on the upper surface of the upper surface plate 5 without providing such a concave hole 18.

  Moreover, in the said Example, although the upper surface of the operation member 9 which opposes front and back is hold | maintained by the pressing member 10 of the front-back direction, the operation member 9 which opposes right and left is attached to the upper surface board 5 so that it may face the left-right direction. You may make it hold | maintain with the upper piece of the both-ends part in the fixed pressing member.

DESCRIPTION OF SYMBOLS 1 Goods storage fixture 2 Table 3 Caster 4 Fixture main body 5 Top plate 6 Height adjustment device 7 Top plate 8 Adjustment shaft 9 Operation member 10 Pressing member 11 Male screw 12 Mounting plate 13 Concave hole 14 Countersunk screw 15 Shaft hole 15a Non-circular hole 16 Small diameter cylindrical portion 17 Nut 18 Concave hole 19 Horizontal piece 20 Holding piece 20a Upper piece 21 Insertion hole 22 Nut 23 Concave hole 24 Through hole 25 Fixing screw 26 Cover

Claims (5)

  An adjustment shaft having a male screw on the outer peripheral surface is protruded downward at a plurality of locations on the lower surface of the top plate that is spaced above the fixture body, and the adjustment shaft is provided on the upper surface of the fixture body that faces each adjustment shaft. An operation member having a shaft hole to be freely fitted and having at least a part of the shaft hole as a female screw portion is placed, the adjustment shaft is screwed into the female screw portion of each operation member, and the plurality of operations facing each other The member is rotatably held by both end portions of a pressing member fixed to the upper surface of the fixture body, and the operation member is rotated around the adjustment shaft to move the adjustment shaft relative to the operation member in the vertical direction. Accordingly, the height adjustment device for the top plate can adjust the height of the top plate.   The presser member is composed of a horizontal piece fixed to the upper surface of the fixture main body, and a presser piece having an outward inverted L-shaped cross section that stands up from both ends in the longitudinal direction of the horizontal piece. 2. The height adjusting device for a top plate according to claim 1, wherein an adjustment shaft is inserted into the upper member and the upper surface of the operation member is pressed by the lower surface of the upper piece.   A member that constitutes the upper surface of the fixture main body by fixing nuts to a plurality of locations in the longitudinal direction on the lower surface of the horizontal piece of the presser member, and fitting the nuts to the upper ends of the through holes provided on the upper surface of the fixture main body. The top plate height adjusting device according to claim 2, wherein the holding member is fixed to the upper surface of the fixture body by screwing a fixing screw inserted into the through hole from below the nut.   The top plate height adjusting device according to any one of claims 1 to 3, wherein a concave hole in which a lower end portion of the operation member is rotatably fitted is provided on an upper surface of the fixture body.   The upper end portion of the shaft hole provided in the operation member is made non-circular, and the nut that is locked to the non-circular shaft hole is fitted into the female screw portion. The height adjustment device of the top plate as described in 2.

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