JP2006316857A - Length adjusting mechanism for telescoping member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a length adjusting mechanism for a telescoping member capable of adjusting the connection length between an outer side leg member and an inner side leg member in a small pitch and in a multi-stage method without lowering the strength of the outer side leg member. <P>SOLUTION: Adjusting hole lines 11, 12 are provided in a plurality of positions different to the circumferential direction of the outer side leg member 6 so that locations for the length adjusting hole 10 with respect to respective adjusting hole lines 11, 12 vary and in the inner side leg member 7, a plurality of piercing holes 13 are provided on the same circumferential surface so as to correspond to the respective adjusting hole lines 11, 12 and when the outer side leg member 6 and the inner side leg member 7 using a joining member 9 are joined, adjusting hole lines 11, 12 to be used and its adjusting hole 10 are chosen so that the connection length of the outer side leg member 6 and the inner side leg member 7 is adjusted in the smaller pitch than the location interval of the length adjusting hole 10 of the adjusting hole lines 11, 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  In this invention, the outer member and the inner member are fitted so as to be stretchable in the length direction, and the connection length of the outer member and the inner member is adjusted by a coupling member that penetrates the fitting portion in the direction orthogonal to the axis. The present invention relates to a length adjusting mechanism in which the connection length between an outer member and an inner member can be adjusted in a multi-step manner with a fine pitch.

  As an expansion / contraction member that fits an outer member and an inner member using a square pipe so as to be stretchable in the length direction, and the connection length can be adjusted by a coupling member, for example, a table, a bed, various furniture, etc. The height of these members needs to be adjusted depending on the conditions of use, so that the legs have a stretchable structure whose length can be adjusted up and down.

  The mechanism for adjusting the length adopted in the conventional telescopic legs is that the outer leg member and the inner leg member are formed by square pipes, and the bolts penetrate the pair of opposing surfaces of the outer leg member that is the grounding side. A plurality of adjustment holes are arranged at regular intervals along the length direction of the square pipe, and an insertion hole through which the bolt passes is provided in the inner leg member so as to correspond to the length adjustment hole. The bolt is inserted through the adjustment hole and the insertion hole matched therewith, and the outer leg member and the inner leg member are joined by screwing the nut, and the length adjustment hole used at the time of this connection is selected. Thus, the connection length between the outer leg member and the inner leg member can be adjusted in a multistage manner with the interval of the length adjusting holes.

  In the telescopic legs as described above, the portion where the bolts of the outer leg member and the inner leg member penetrate, in particular, the length adjusting hole of the outer leg member serving as the grounding side, is subjected to a pressing load by the penetrating bolt. .

  By the way, since the length adjusting holes provided in the outer leg member are arranged at regular intervals in the vertical direction, if the outer leg member is provided close to the length adjusting holes arranged in the vertical direction, the portion between the length adjusting holes is arranged. Therefore, in the conventional length adjusting mechanism, the strength is ensured by widening the arrangement interval of the length adjusting holes.

  However, if the interval between the length adjustment holes provided in the outer leg member is wide, the adjustment interval of the vertical length of the telescopic legs can be performed only with a large pitch. There is a problem that it cannot be adjusted.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a length adjusting mechanism for an expansion / contraction member that can adjust the connection length between the outer member and the inner member in a multi-step manner with a fine pitch without reducing the strength of the outer member. It is in.

  In order to solve the above-described problems, the present invention provides a connecting member that penetrates the connection length of the outer member and the inner member, which are fitted to be stretchable in the length direction, through the fitting portion in the direction orthogonal to the axis. Therefore, an adjustment hole row in which a plurality of adjustment holes penetrating the coupling member are arranged at predetermined intervals along the length direction is provided in either one of the outer member and the inner member. An insertion hole through which the coupling member passes is provided, and the outer member and the inner member are coupled by inserting the coupling member into one of the length adjustment holes and the corresponding insertion hole. In the length adjustment mechanism of the expansion / contraction member that adjusts the connection length of the outer member and the inner member by the distance between the length adjustment holes, a plurality of different locations with respect to the circumferential direction of the one member The adjustment hole row at the position of Each adjustment hole row is provided so that the arrangement of the length adjustment holes is different along the length direction, and a plurality of insertion holes are arranged on the same circumferential surface in the other member so as to correspond to each adjustment hole row. When the outer member and the inner member are coupled using the coupling member, the outer member is selected at a pitch finer than the arrangement interval of the length adjusting holes of the adjusting hole row by selecting the adjusting hole row and the adjusting hole to be used. And a configuration in which the connection length of the inner member can be adjusted.

The outer member and the inner member are formed by square pipes, the first adjustment hole row is formed on a pair of opposite surfaces of the outer member, and the second adjustment hole row is formed on the other pair of opposite surfaces. An arrangement of the adjustment holes in the second adjustment hole row is provided so as to be different by a half pitch along the length direction of the square pipe, and an insertion hole corresponding to the first adjustment hole row on a pair of opposed surfaces of the inner member; The insertion hole corresponding to the second adjustment hole row may be disposed on the same peripheral surface of the square pipe on the other pair of opposing surfaces.

  Here, the outer member and the inner member are formed by using square pipes such as aluminum, and the pitch of the adjusting holes in the first adjusting hole row and the second adjusting hole row provided in the outer member is the same as that of the outer member. The portion provided with the adjustment hole row is set at an interval that can secure the strength against the load during use, and the arrangement of the adjustment holes in the first adjustment hole row and the second adjustment hole row is along the length direction of the square pipe. Accordingly, the connection length between the outer member and the inner member can be finely adjusted at the half pitch interval of the arrangement of the adjustment holes.

  According to the present invention, since the arrangement of the length adjusting holes in the plurality of sets of adjusting hole rows is provided so as to be different along the length direction of the one member, the adjustment of the connection length between the outer member and the inner member can be used. By selecting the adjustment hole row to be adjusted and the adjustment hole, the adjustment hole row can be finely adjusted with a pitch interval smaller than the arrangement interval of the length adjustment holes, and the length can be adjusted with a fine pitch according to the use conditions.

  In addition, the pitch of the adjustment holes in the adjustment hole row can be set to an interval where the portion provided with the adjustment hole row of one member can secure the strength against the load during use, and after securing the load supporting strength of one member, The length can be adjusted with a fine pitch.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 (a) and 1 (b) show a wetting edge 1 that is installed and used on a stepped portion between a floor surface of a building and the ground, and the upper surface between parallel long side support members 2 and 2 is made of aluminum or the like. A large number of eaves members 3 made of square bars are arranged in parallel at a predetermined interval, and extendable legs 4 as extendable members are provided at the positions of both ends and an intermediate portion below the both side support members 2 and 2. The structure has a structure in which the lower part of the extensible legs 4 aligned in the direction and the lower part of the extensible legs 4 facing both sides are joined by reinforcing rods 5 and 5a, respectively.

  The support members 2 and 2 and the eaves member 3 and the telescopic legs 4 are made of aluminum or the like, and the support members 2 and 2 are formed in a U shape with a downward cross section, and the eaves member 3 is formed in a hollow or square cross section. By fixing the overlapping portions of the members 2 and 2 and the eaves member 3, they are assembled in a bowl shape with legs.

  The telescopic leg 4 is a combination of an outer leg member 6 made of a pipe having a square cross section having a predetermined length in the vertical direction and an inner leg member 7 made of a pipe having a square cross section that just fits inside the outer leg member 6. The upper end of the inner leg member 7 is fitted into the inside of the support member 2, and the inner leg member 7 is vertically arranged downward with respect to the support member 2 by screws screwed into the inner leg member 7 from above the support member 2. A grounding member 8 for height adjustment is attached to the lower end portion of the outer leg member 6 that is fixed to the inner leg member 7 and is externally fitted to the inner leg member 7.

  The telescopic leg 4 is provided with a length adjusting mechanism for connecting the outer leg member 6 and the inner leg member 7 and adjusting the vertical length, and the upper surface height of the wetting edge 1 is adjusted to the use conditions. Can be adjusted.

  As shown in FIGS. 1 to 3, the length adjusting mechanism has a plurality of adjusting holes 10 that penetrate the coupling member 9 in a pair of opposing surfaces of the outer leg member 6 along a length direction. A second adjustment hole row 11 is provided, and a plurality of adjustment holes 10 through which the coupling member 9 penetrates the other pair of opposing surfaces are arranged at predetermined intervals along the length direction. 12, the adjustment holes 10 in the first and second adjustment hole rows 11 and 12 are arranged so as to be different by a half pitch along the length direction of the outer leg member 6.

  Accordingly, the first and second adjustment hole rows 11 and 12 are arranged at right angles in the cross section of the outer leg member 6, and the first adjustment hole row 11 and the second adjustment hole row 12 provided in the outer leg member 6. The pitch of the adjustment holes 10 in the outer leg member 6 may be set to an interval at which the portion of the outer leg member 6 provided with the adjustment hole rows 11 and 12 can secure the strength against the load during use. Depending on the thickness of the outer leg member 6, the hole rows 11 and 12 are provided with three adjustment holes 10 each having a diameter of about 10 mm arranged at intervals of 40 mm, and both adjustment holes 10 are arranged in the length direction of the outer leg member 6. , The lengths of the outer leg member 6 and the inner leg member 7 can be adjusted at a pitch of 20 mm.

  The inner leg member 7 has an insertion hole 13 through which the coupling member 9 passes so as to correspond to the first adjustment hole row 11 on a pair of opposed surfaces, and a second adjustment hole on the other opposed pair of surfaces. Similar insertion holes 13 corresponding to the rows 12 are provided on the same peripheral surface of the inner leg member 7.

  As shown in FIG. 2, the coupling member 9 includes a combination of a male member 16 having a male screw shaft 15 having an operation head 14 and a female member 18 having a female screw shaft 17 having an operation head 14. If the male screw shaft 15 and the female screw shaft 17 are screwed together while being inserted into the insertion hole 13 of the inner leg member 7 from the outside of the adjustment holes 10 on both sides facing each other at the same height position of the outer leg member 6, The outer leg member 6 and the inner leg member 7 can be combined.

  Next, FIG. 4 to FIG. 6 show connections for preventing the misalignment by connecting the adjacent wetting edges 1 to each other when the above-mentioned two wetting edges 1 are used in parallel. 4 (a) to 4 (c) is an example of a metal fitting, and an upper connecting metal piece 19 shown in FIGS. 4 (a) to 4 (c) is a downward bent piece at both ends of a belt-like metal plate provided with a plurality of screw insertion holes 20 at a position where it is coupled to the telescopic leg 4. 21 is provided, and the upper connection fitting 19 is fitted into the gap between the flange members 3 adjacent to the support members 2 and 2 on both sides at the attachment portions of the telescopic legs 4. Then, the screws 22 are screwed into the inner leg members 7 of the extendable legs 4 through the support members 2 to connect the support members 2 and 2 of the adjacent wetting edges 1 to each other at the positions of the extendable legs 4. ing.

  5 (a) and 5 (b) are lower connection fittings 23 for joining the telescopic legs 4 located at both ends of the support member 2 to each other, and at one end of one rectangular metal plate, Bending notches 24 to be inserted into the screw shaft 8a of the grounding member 8 are provided at positions at intervals of the screw shafts 8a and 8a on both sides, and the grounding on both sides attached to the adjacent wetting edges 1 and 1 of the extensible legs 4 is provided. If the bent notches 24 and 24 are inserted into the screw shafts 8a and 8a of the member 8 and the lower connection fitting 23 is moved and inserted along the shape of the bent notches 24 and 24, the lower portions of the telescopic legs 4 and 4 are inserted. The lower connection fitting 23 is not easily detached from the screw shafts 8a and 8a by being caught by the bent shapes of the bent notches 24, 24.

  6 (a) and 6 (b) are intermediate connection fittings 25 that couple the telescopic legs 4 located in the middle of the support member 2 to each other, and cannot be reached when connecting the telescopic legs 4 located in the middle. Since this is a condition, when the wetting edges 1 are arranged side by side, the telescopic legs 4 and 4 at the intermediate position are placed in advance.

  The intermediate connection fitting 25 can be connected in one type by inverting the same structure upside down and arranging it on the left and right sides. A fitting insertion hole 27 for the screw shaft 8 a is provided, a step about the thickness of the plate 26 is provided in the middle of the plate 26, and a square hole 28 is formed at the other end side of the plate 26 by cutting and raising the square hole 28. It has a structure in which a joining piece 29 is provided.

  When the wetting edges 1 are arranged in parallel, by passing the screw shaft 8a of the grounding member 8 attached to the central extensible legs 4 and 4 of the adjacent wetting edges 1 and 1 through the fitting insertion holes 27, the central extensible legs 4 and 4 are arranged. The intermediate connection fittings 25, 25 are attached so as to protrude toward each other in an upside down state, and the intermediate connection fittings 25, 25 are overlapped so that the engagement piece 29 engages with the other square hole 28. The adjacent wetting edges 1 and 1 can be joined to each other at the positions of the central telescopic legs 4 and 4.

  The length adjusting mechanism of the present invention is configured as described above. In order to adjust the length of the telescopic leg 4, the inner leg member is adjusted from the adjusting holes 10 on both sides facing each other at the same height position of the outer leg member 6. 7, the male member 16 and the female member 18 are inserted and the male screw shaft 15 and the female screw shaft 17 are screwed together, and the outer leg member 6 and the inner leg member 7 can be coupled. By selecting the adjustment hole rows 11 and 12 and the adjustment hole 10 to be used at the time of coupling, the outer leg member 6 and the outer leg member 6 are arranged at a half pitch smaller than the arrangement interval of the length adjustment holes 10 in both the adjustment hole rows 11 and 12. The connection length of the inner leg member 7 can be adjusted.

  In addition, the adjustment hole rows 11 and 12 of the outer leg member 6 can be set at an interval in which the pitch of the adjustment holes 10 can ensure the strength against the load during use, and the load supporting strength of the outer leg member 6 is ensured. The length can be adjusted with a fine pitch.

  In the illustrated example, the adjustment hole rows 11 and 12 are provided in the outer leg member 6, and the insertion hole 13 is provided in the inner leg member 7. Conversely, the adjustment hole rows 11 and 12 are provided in the inner leg member 7. The insertion hole 13 may be provided in the outer leg member 6, and the use of the length adjusting mechanism is not limited to the illustrated wet edge 1, but the legs of various furniture and horizontally long members It may be used and can be widely used for the length adjusting portion of the elastic member.

(A) is a front view of a wet edge using an extensible leg, and (b) is a side view of the same. Enlarged vertical side view of telescopic legs using length adjustment mechanism Exploded perspective view of telescopic legs using length adjustment mechanism (A) is a vertical side view of a wetting edge showing a state of connection by an upper connection fitting of adjacent wetting edges arranged in parallel, (b) is a perspective view of the upper connection fitting, and (c) is a wetting edge of the upper connection fitting. Top view of connected state (A) is the front view which shows the connection state of the expansion-contraction leg by the lower connection metal fitting of the adjacent wet edge arranged in parallel, (b) is a top view of the connection state (A) is a longitudinal front view showing the connection state of the central telescopic legs by the central connection fittings of adjacent wet edges arranged in parallel, (b) is an exploded perspective view of the central connection fittings

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wetting edge 2 Support member 3 棧 member 4 Telescopic leg 5 Reinforcement 棧 5a Reinforcement 棧 6 Outer leg member 7 Inner leg member 8 Grounding member 9 Coupling member 10 Adjustment hole 11 First adjustment hole row 12 Second adjustment hole row 13 Insertion hole 14 Operation head 15 Male screw shaft 16 Male member 17 Female screw shaft 18 Female member 19 Upper connection fitting 20 Screw insertion hole 21 Bending piece 22 Screw 23 Lower connection fitting 24 Bending cutout 25 Intermediate connection fitting 26 Rectangular plate 27 Fitting Insert hole 28 Square hole 29 Engagement piece

Claims (2)

Either the outer member or the inner member is adjusted in order to adjust the connection length of the outer member and the inner member fitted so as to be stretchable in the length direction by a coupling member penetrating the fitting portion in the direction orthogonal to the axis. The member is provided with an adjustment hole row in which a plurality of adjustment holes through which the coupling member passes are arranged at predetermined intervals along the length direction, and an insertion hole through which the coupling member passes is provided in the other member. By connecting the outer member and the inner member by inserting the coupling member through the insertion hole matched with the thickness adjusting hole, and selecting the length adjusting hole to be used at the time of coupling, the connection length between the outer member and the inner member In the length adjusting mechanism of the elastic member that adjusts the length by the interval of the length adjusting hole,
The adjustment hole row is provided at a plurality of positions different from each other in the circumferential direction of the one member, and the arrangement of the length adjustment holes is different for each adjustment hole row along the length direction. A plurality of insertion holes are arranged on the same circumferential surface so as to correspond to each adjustment hole row, and the adjustment hole row to be used and its adjustment hole are used when the outer member and the inner member are joined using the connecting member. The length adjustment of the expansion / contraction member is characterized in that the connection length between the outer member and the inner member can be adjusted at a pitch finer than the arrangement interval of the length adjustment holes of the adjustment hole row. mechanism. The outer member and the inner member are formed by square pipes, the first adjustment hole row is formed on a pair of opposite surfaces of the outer member, and the second adjustment hole row is formed on the other pair of opposite surfaces. An arrangement of the adjustment holes in the second adjustment hole row is provided so as to be different by a half pitch along the length direction of the square pipe, and an insertion hole corresponding to the first adjustment hole row on a pair of opposed surfaces of the inner member; The length of the expansion / contraction member according to claim 1, wherein an insertion hole corresponding to the second adjustment hole row is arranged on the same peripheral surface of the square pipe on another pair of opposing surfaces. Adjustment mechanism.

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