JP2019083912A - Connecting structure of rod material, and top plate lifting/lowering furniture - Google Patents

Abstract

To provide connecting structure of a rod material that is constituted simply and inexpensively, and allows for improvement of work efficiency in the connection work and enables visual quality to be better.SOLUTION: Connecting structure 4 of a rod material is provided that comprises a first rod material 22 having a pair of opposite parts 22A, and a second rod material 31 housing the first rod material 22 inside, and that connects the first rod material 22 and the second rod material 31 to each other. The connecting structure also comprises: a spacer member 40 internally fitted between a pair of opposite parts 22A in the first rod material 22; and a positioning member 50 having positioning protrusions 51, and positioning a relative position between the first rod material 22 and the second rod material 31. The positioning member 50 is arranged so that the positioning protrusions 51 is communicated with a first rod material insertion hole 25 and a second rod material insertion hole 36, and connects the first rod material 22 and the second rod material 31 to each other by fixing means 60 communicated with the first rod material insertion hole 25, the second rod material insertion hole 36 and a spacer insertion hole 44.SELECTED DRAWING: Figure 6

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a connection structure of brazing material and a top-plate lifting-type fixture.

In the case of table-top-lift-type fixtures such as desks and tables used in office spaces such as offices, the timbers for supporting the top plate are divided into upper and lower timbers, and their connection position is Many things are adopted as it is possible to change the length of the wood by changing and changing the top height of the fixture.
For example, as shown in the following Patent Document 1 and the following Patent Document 2 as the connecting structure of the brazing material. Disclosed is a method of forming a cage material by a hollow outer jacket and an inner jacket, and changing the connecting position of the inner jacket inserted inside the outer jacket and the outer jacket as a height changing mechanism It is done.

Japanese Patent Application Laid-Open No. 2002-017454 Japanese Patent Laid-Open No. 2000-083743

However, with the configuration described in Patent Document 1, complicated processing is required, which requires processing man-hours and processing costs, and the processed portion is exposed to the outside, resulting in poor appearance. It was
Further, in the configuration described in Patent Document 2, since the connection is made by the fastening force of the screw, it is necessary to increase the fastening force when a large load is applied in the direction in which the brazing material is compressed. When the fastening force of the screw portion is increased too much in order to increase the strength, there is a problem that the pipe material constituting the inner weir is deformed.
Furthermore, in this structure, there is also a problem that accurate positioning of the coupling length is difficult at the time of coupling. Here, in the case where the connecting method of the brazing material is adopted for the pair of left and right top plate support legs, the length of the brazing material affects the horizontality of the surface or more of the top plate, so It needed to be the same on the left and right.

  Therefore, the present invention provides a connecting structure of ribbing materials that can be configured easily and inexpensively, and can be made to have good workability in connection work, and can be made to look better. The purpose is

  In order to achieve the above object, a connecting structure for a brazing material according to the present invention comprises: a first reinforcing material extending in a longitudinal direction and having a pair of opposing parts opposing each other in an opposing direction orthogonal to the longitudinal direction; And a second connecting member having a housing portion for receiving therein a connecting member, wherein the first connecting member and the second connecting member are connected along the longitudinal direction. A spacer member which is internally fitted between the pair of opposing portions of the first rib and a positioning projection, and positioning the relative positions of the first rib and the second rib A positioning member, and a pair of the opposing portions is formed with a first reinforcing material insertion hole penetrating the at least one opposing portion in the opposing direction, and the second reinforcing material is opposed to the second reinforcing material A second filler material insertion hole penetrating in the direction is formed corresponding to the first filler material insertion hole In the spacer member, a spacer insertion hole penetrating the spacer member in the opposite direction is formed corresponding to the first reinforcing material insertion hole, and the positioning member is the positioning protrusion is the first insulating material insertion The first wedge is disposed in communication with the hole and the second wedge material insertion hole by fixing means communicating with the first wedge material insertion hole, the second wedge material insertion hole, and the spacer insertion hole. Material and said second base material are connected.

In the present invention, since the connecting structure of the reinforcing members is constituted by the first reinforcing member, the second supporting member, the positioning member, and the spacer member, the increase in the number of parts is suppressed and the connecting structure of the reinforcing members is simplified It can be configured inexpensively.
Further, the positioning projection of the positioning member is in communication with the first wedge material insertion hole and the second wedge material insertion hole. For this reason, in a state where the relative positions of the first and second ribs are temporarily determined, it becomes possible to fix the first and second ribs by the fixing means, and in the connection length changing operation Workability can be improved.

In addition, since the spacer member is internally fitted to the first rib, even if the first rib and the second rib are firmly fixed by the fixing means, the first rib and the second rib are used. Can be suppressed from being deformed.
Further, since the spacer member is internally fitted to the first rib and the first rib is accommodated in the storage portion for the second rib, the appearance of the connecting structure of the rib can be improved.

  Further, in the connecting structure of the brazing material according to the present invention, a plurality of the first brazing material insertion holes and a plurality of the second brazing material insertion holes are provided at intervals in the longitudinal direction, respectively, The second wedge material may be connected so as to be able to change the relative position in the longitudinal direction by changing the correspondence relationship between the first wedge material insertion hole and the second wedge material insertion hole.

  In this case, since the relative position of the first and second ribs can be changed in the longitudinal direction, the first and second ribs are adjusted to the desired relative position and used. be able to.

  Further, in the connecting structure of the brazing material according to the present invention, the plurality of first brazing material insertion holes and the plurality of second brazing material insertion holes are provided at intervals in the longitudinal direction, and a plurality of mutually corresponding pairs are provided. The positioning projection may be in communication with one of the plurality of sets, and the fixing means may be in communication with another of the plurality of sets.

In this case, among the plurality of pairs corresponding to each other formed by the plurality of first rib insertion holes and the second rib insertion holes, a pair in which the positioning member is in communication and a pair in which the fixing unit is in communication; The sets are different. For this reason, by setting the diameter of each of the first wedge material insertion hole and the second wedge material insertion hole to a minimum size that allows the positioning projection and the fixing means to communicate with each other, the first wedge material insertion hole and the second wedge can be obtained. It can suppress that the hole diameter of each material penetration hole becomes large.
Thereby, it can suppress that a foreign material approachs into a 1st rib insertion hole and a 2nd rib insertion hole.

Further, in the connecting structure of wedge members according to the present invention, the positioning protrusion may be in communication with the first wedge member insertion hole and the second wedge member insertion hole, and may be in communication with the spacer insertion hole .
In this case, since the positioning projections communicating with the first and second reinforcing material insertion holes also communicate with the spacer insertion holes, the first and second reinforcing members are made of the positioning member. In addition to their relative position, the position of the spacer members relative to them can also be positioned.

Moreover, in the connection structure of the brazing material according to the present invention, the first brazing material may be a pipe, and the spacer member may close the open end in the longitudinal direction of the first brazing material.
In this case, since the spacer member closes the opening end of the first rib, it is possible to prevent foreign matter from entering from the opening end of the first rib, which is a problem in connecting the ribs. Can be suppressed.

  Further, in the wedge member connecting structure according to the present invention, the fixing means is a screwing means constituted by an external thread portion and an internal thread portion, the positioning member is provided with the internal thread portion, and has the external thread portion. A male screw member may be in communication with the first rib insertion hole, the second rib insertion hole, and the spacer insertion hole.

  In this case, since the positioning member is provided with the internal thread forming the fixing means, the number of parts can be reduced compared to the configuration in which the external thread member and the internal thread forming the fixing means are separately provided. can do.

  Moreover, in the connection structure of the filler according to the present invention, the first filler insertion hole is a first filler through hole which penetrates both of the pair of opposing parts in the opposing direction, and one of the pair of opposing parts. A first wedge positioning hole penetrating in the opposite direction, and the positioning member is disposed such that the positioning projection communicates with the first wedge positioning hole and the second wedge insertion hole; The first wedge material and the second wedge material may be connected by fixing means communicating with the first wedge material through hole, the second wedge material insertion hole, and the spacer insertion hole.

  In this case, among the first filler material insertion holes, the first filler material positioning hole in communication with the positioning protrusion penetrates only one of the facing parts. For this reason, by reducing the number of holes provided in the first reinforcing material, it is possible to improve the appearance and to suppress the entry of foreign matter from the holes provided in the first insulating material.

  Further, in the top-plate lifting type fixture according to the present invention, the lower structure mounted on the floor surface, the upper structure having the top plate portion, and the upper structure are detachably connected to the lower structure. And a connecting structure for moving the connecting structure of the upper structure to the lower structure, wherein the connecting structure is the connecting structure of the above-mentioned connecting members. It is characterized by

  In the present invention, the connection structure for detachably connecting the upper structure and the lower structure in the top-plate lifting fixture is the above-described connection structure of the brazing material. Therefore, the work of changing the height of the top plate can be easily performed.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to be comprised simply and cheaply, while being able to make workability | operativity in the change operation of connection length favorable, appearance can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows an example of the top-plate raising / lowering type fixture which employ | adopted the connection structure of the wedge member in 1st Embodiment of this invention. It is a side view of the lower structure in the top-plate lifting-type fixture shown in FIG. It is the sectional view on the AA line of FIG. It is a side view of the upper structure in the top-plate lifting-type fixture shown in FIG. It is the BB sectional drawing of FIG. It is a longitudinal cross-sectional view of the connection structure of the brazing material in 1st Embodiment of this invention. It is (a) perspective view and (b) longitudinal cross-sectional view in the spacer shown in FIG. It is the (a) perspective view and the (b) longitudinal cross-sectional view in the positioning member shown in FIG. Among the cross-sectional views of the connecting structure of the brazing material shown in FIG. 6, (a) CC cross-sectional view as viewed from arrows and (b) DD cross-sectional view as viewed from arrows. It is a longitudinal cross-sectional view which shows the modification of the positioning member shown in FIG. It is a longitudinal cross-sectional view of the connection structure of the brazing material in 2nd Embodiment of this invention.

First Embodiment
Hereinafter, the connection structure of the brazing material according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 9. First, the table-lifting type fixture 1 in which this connection structure is adopted will be described.
As shown in FIG. 1, the table-lifting type fixture 1 is a desk used, for example, in a school etc., and the height of the table-top portion 32 can be changed.

The top plate portion 32 of the top-lifting type fixture 1 according to the present embodiment is formed in a rectangular shape whose plan view shape is horizontally long. In the following description, the direction in which the short side of the rectangular shape in plan view of the top plate 32 extends is referred to as the front-rear direction, and the direction in which the long side extends is referred to as the left-right direction.
The user is set to work with the top plate portion 32 mainly in a state of facing the top-plate lifting type fixture 1 from one side in the front-rear direction. One side in the front-rear direction (the user side with respect to the table-lifting type fixture 1) is referred to as the front side, and the opposite side is referred to as the rear side.
In the following, the left and right direction of the top-lift-type fixture 1 is defined as the side with the center of the top-lift-type fixture 1 in the left-right direction with respect to the both ends of the top-lift type fixture 1 in the left-right direction. The side with both end portions in the left and right direction with respect to the center portion of is referred to as the outside.

As shown in FIG. 1, the top board lifting type fixture 1 includes a lower structure 2 installed on the floor surface 11, and an upper structure 3 having a top plate portion 32 and connected to the upper side of the lower structure 2. And a connecting structure 4 of a brazing material which releasably connects the lower structure 2 and the upper structure 3 to each other.
As shown in FIG. 1 and FIG. 2, the lower structure 2 has an upper side from a pair of base portions 21 and 21 and a pair of base portions 21 and 21 placed on the floor surface 11 at intervals in the left-right direction. And a lower reinforcing member 23 connecting the pair of base portions 21 and 21 to each other.

  The pair of base portions 21 and 21 are formed in shapes symmetrical with each other in the left-right direction. The base portion 21 is placed on the floor surface 11 and extends in the front-rear direction. In the present embodiment, a metal square tube is used for the base portion 21. The front end portion and the rear end portion of the base portion 21 are covered with a resin cap 24.

The pair of lower support legs 22 and 22 extend in the vertical direction (longitudinal direction), and have a pair of opposing portions 22A and 22A opposite to each other in the lateral direction (opposing direction) orthogonal to the vertical direction.
The pair of lower support legs 22 and 22 are formed to be symmetrical with each other in the left-right direction. In the present embodiment, a metal square tube is used for the lower support leg portion 22.

  As shown in FIG. 3, the lower support leg portion 22 has a rectangular shape in which two sides extend in the front-rear direction in top view and the remaining two sides extend in the left-right direction. The size of the lower support leg 22 in the front-rear direction is larger than the size in the left-right direction. Among the peripheral walls of the lower support leg portion 22, the peripheral walls facing in the left-right direction and facing each other form a pair of opposing portions 22 </ b> A. The facing portion 22A extends in the front-rear direction in top view.

In the pair of facing portions 22A, first rib material insertion holes 25 are formed which penetrate at least one of the facing portions 22A in the left-right direction. In the example of illustration, the 1st rib insertion hole 25 is penetrating both opposing part 22A in the left-right direction.
A plurality of first filler material insertion holes 25 are provided at intervals in the vertical direction. In the illustrated example, four first filler material insertion holes 25 are arranged at equal intervals in the vertical direction. The hole diameters of the plurality of first filler material insertion holes 25 are equal to one another. In addition, the quantity of the 1st rib insertion hole 25 can be changed arbitrarily.

  The lower reinforcing member 23 is a rod-like member and extends in the left-right direction. In the present embodiment, a metal square tube is used as the lower reinforcing member 23 and is welded to the pair of base portions 21. The lower reinforcing member 23 is formed to have substantially the same height as the pair of base portions 21, and the upper surface thereof is disposed substantially flush with the upper surface of each of the pair of base portions 21.

  As shown in FIGS. 1 and 4, the upper structural body 3 includes a pair of upper support legs (second reinforcing members) 31 and 31 connected to the lower support legs 22 and a pair of upper support legs 31. , 31 and a storage portion 34 provided on the lower side of the top plate 32, and a reinforcing member 35 for connecting the pair of upper support legs 31 and 31 to each other. There is.

The pair of upper support legs 31, 31 extend in the vertical direction. The pair of upper support legs 31 and 31 is configured to be detachable from the pair of lower support legs 22 and 22 respectively. The pair of upper support leg portions 31 and 31 are formed in shapes symmetrical with each other in the left-right direction.
In the present embodiment, the upper support leg portion 31 is formed of metal in which a cross-sectional shape is formed in a C-shape (U-shape), and an accommodation portion 31A for accommodating the lower support leg portion 22 is entirely formed therein. Channel material is used.

  The housing portion 31A of the upper support leg portion 31 opens inward in the left-right direction. The housing portion 31A is formed in a shape in which the lower support leg portion 22 can be inserted. The lower support leg portion 22 and the upper support leg portion 31 are connected in a state in which the lower support leg portion 22 is inserted into the accommodation portion 31A of the upper support leg portion 31.

  As shown in FIG. 1, FIG. 4 and FIG. 5, in the outer plate portion 31B of the upper support leg portion 31 facing in the left-right direction, the second reinforcing material insertion hole 36 penetrating the plate surface in the left-right direction It is formed in correspondence with the single-passage material insertion hole 25. A plurality of second wedge material insertion holes 36 are provided at intervals in the vertical direction.

  The intervals in the vertical direction between the plurality of second filler material insertion holes 36 are equal to the intervals in the vertical direction between the plurality of first filler material insertion holes 25. The hole diameters of the first rib insertion hole 25 and the second rib insertion hole 36 are equal to each other. In the illustrated example, 14 second wedge material insertion holes 36 are arranged at equal intervals in the vertical direction. In addition, the quantity of the second filler material insertion holes 36 can be arbitrarily changed.

As shown in FIG. 4, the top plate portion 32 is connected to the top plate main body 32A having a work surface, and the upper end portions of the pair of upper support leg portions 31 and 31, and the pair of top plate main bodies 32A is fixed. It has top plate main body fixing | fixed part 32B and 32B.
The top plate main body 32A is formed in a flat plate shape whose plate surface is rectangular, and is disposed in a direction in which the plate surface faces in the vertical direction. The upper surface of the top plate main body 32A is used by the user as a work surface. The top plate main body 32A is formed of, for example, a plate made of wood or resin.

  The pair of top plate main body fixing portions 32B, 32B extends in the front-rear direction. The middle portion in the front-rear direction of one of the pair of top plate main body fixing portions 32B, 32B is joined to the upper end portion of the upper support leg portion 31 positioned on one side in the left-right direction. A middle portion in the front-rear direction in the other of the pair of top plate main body fixing portions 32B, 32B is joined to an upper end portion of the upper support leg portion 31 positioned on the other side in the left-right direction.

As shown in FIGS. 1 and 4, the storage unit 34 is disposed between the pair of upper support legs 31 and 31 below the top plate main body 32 </ b> A.
The storage portion 34 is provided with a bottom plate portion 34A spaced below the top plate main body 32A, a rear plate portion 34B extending upward from a rear edge portion of the bottom plate portion 34A, and both lateral directions of the bottom plate portion 34A. And a pair of side plate portions 34C, 34C extending upward from the respective edge portions. In the present embodiment, the storage portion 34 is formed of a steel plate or the like.
A storage space 34D that is open to the front and surrounded by the bottom plate portion 34A, the rear plate portion 34B, the side plate portions 34C and 34C, and the top plate main body 32A of the storage portion 34 is configured to be able to store articles.

The reinforcing member 35 is formed in a rod-like member bent in a C-shape (U-shape) in a top view. As shown in FIG. 4, the reinforcing member 35 includes a pair of first rod-shaped portions 35A, 35A extending rearward from the pair of upper support legs 31, 31, and a rear end portion of the pair of first rod-shaped portions 35A, 35A. And a second rod-like portion 35B connecting the two.
In the present embodiment, the reinforcing member 35 is a metal round tube, and the pair of first rod-shaped portions 35A, 35A and the second rod-shaped portion 35B are integrally formed. Both ends of the reinforcing member 35 are welded to the upper support leg 31.

Next, the connecting structure 4 of the brazing material in the present embodiment will be described.
As shown in FIG. 1, the connection structure 4 of the cage connects the lower support leg 22 and the upper support leg 31 so that the connection height can be changed along the vertical direction.
As shown in FIG. 6, the connection structure 4 of the brazing material includes a spacer member 40 which is internally fitted between the pair of opposing portions 22A and 22A in the lower support leg 22, the lower support leg 22 and the upper support leg. And a positioning member 50 for positioning the relative position of the portion 31.

  As shown in FIG. 7, the spacer member 40 has a rectangular shape in top view, and has an axial shape extending in the vertical direction. The spacer member 40 connects the spacer main body 41 extending in the vertical direction, the upper end of the spacer main body 41, and the closing plate 42 having a rectangular shape in top view, the upper end of the spacer main body 41 and the lower surface of the closing plate 42 And a connecting rib 43.

  A spacer insertion hole 44 penetrating the spacer main body 41 in the left-right direction is formed in the spacer main body 41 in correspondence with the first filler material insertion hole 25. A plurality of spacer insertion holes 44 are provided at intervals in the vertical direction. The distance between the plurality of spacer insertion holes 44 is equal to the distance between the plurality of first filler material insertion holes 25 in the vertical direction.

  The hole diameter of the spacer insertion hole 44 is larger than the hole diameter of the first filler material insertion hole 25. In the illustrated example, four spacer insertion holes 44 are arranged at equal intervals in the vertical direction. The hole diameter of the spacer insertion hole 44 may be smaller than the hole diameter of the first filler material insertion hole 25, and the number of the spacer insertion holes 44 can be arbitrarily changed.

In the spacer main body 41, on both side surfaces facing the outside in the left-right direction, a meat theft portion 41A that is recessed toward the inside in the left-right direction is formed. The light theft portion 41A is disposed between the spacer insertion holes 44 adjacent to each other in the vertical direction, and between the spacer insertion hole 44 and the closing plate 42.
As described above, the thickness theft portion 41A is formed in the spacer main body 41, so that the thickness of the entire spacer member 40 can be made uniform, and generation of a sink at the time of manufacture by injection molding can be suppressed.

  The closing plate 42 is a plate-like member facing in the vertical direction. As shown in FIG. 6, when the spacer member 40 is fitted inside the lower support leg 22, the closing plate 42 closes the upper end opening of the lower support leg 22. The lower surface of the closing plate 42 vertically abuts on the upper end opening edge of the lower support leg 22.

As shown in FIG. 7, a pair of connection ribs 43 is disposed on both outer sides in the front-rear direction of the spacer main body 41. The dimension in the front-rear direction between the pair of connection ribs 43 is slightly smaller than the dimension in the front-rear direction inside the lower support leg portion 22.
The dimension in the front-rear direction between the pair of connection ribs 43 may be slightly larger than the dimension in the front-rear direction on the inner side of the lower support leg 22. In this case, the spacer member 40 can be firmly fitted inside the lower support leg 22 as an interference fit.

As shown in FIG. 8, the positioning member 50 is a plate-like member exhibiting an oval shape protruding upward and downward in a plan view as viewed from the left and right direction. The positioning member 50 has a positioning protrusion 51 that protrudes inward in the left-right direction.
The positioning protrusion 51 is disposed at a central portion in the front-rear direction among the inner side surfaces facing inward in the left-right direction of the positioning member 50. A plurality of positioning protrusions 51 are formed at intervals in the vertical direction. The spacing in the vertical direction between the plurality of positioning protrusions 51 is the same as the spacing in the vertical direction between the first filler material insertion holes 25 and between the second filler material insertion holes 36. In the illustrated example, two positioning protrusions 51 are arranged.

A mounting hole 52 in which a female screw portion 62 is formed is provided in a portion of the inner side surface of the positioning member 50 located above and below the positioning protrusion 51. Two mounting holes 52 are provided. The male screw member in the fixing means 60 mentioned later is attached to the attachment hole 52.
On the inner side surface of the positioning member 50, a meat theft portion 53 which is recessed inward in the left-right direction is formed. A plurality of meat stealing units 53 are arranged at intervals in the vertical direction and in the front-rear direction.
As described above, the thickness theft portion 53 is formed in the positioning member 50, so that the thickness of the entire positioning member 50 can be made uniform, and generation of a sink mark at the time of manufacture by injection molding can be suppressed.

And in the connection structure 4 of the brazing material according to the present embodiment, as shown in FIG. 6 and FIG. 9B, the positioning member 50 has the positioning protrusion 51, the first reinforcing material insertion hole 25, and the second ridge. It is disposed to communicate with the material insertion hole 36.
The positioning protrusion 51 is in communication with the first and second wedge member insertion holes 25 and 36 from the outside in the left-right direction toward the inside. In the present invention, communication means a state of being continuously passed through the inside of a plurality of members. That is, the communication in the present invention does not mean, for example, that the pair of facing portions 22A, 22A is penetrated through the entire first rib insertion hole 25 formed at an interval in the left-right direction. Therefore, the positioning protrusion 51 may be disposed in all or only a part of the first filler material insertion hole 25 formed in one of the pair of facing portions 22A, 22A.

The positioning protrusion 51 also communicates with the spacer insertion hole 44. The two positioning protrusions 51 are separately inserted into portions of the spacer insertion holes 44 disposed at an interval in the vertical direction, which are positioned inside in the vertical direction.
In the illustrated example, the tip end of the positioning protrusion 51 is located at the center of the lower support leg 22 in the left-right direction. In addition, it is not restricted to such an aspect, the front-end | tip part of the positioning protrusion 51 may penetrate the 1st rib insertion hole 25 in the left-right direction, and may protrude inside the left-right direction from the lower support leg 22 .

Moreover, in the connection structure 4 of the brazing material according to the present embodiment, as shown in FIG. 6 and FIG. 9A, in the first adhesive material insertion hole 25, the second adhesive material insertion hole 36, and the spacer insertion hole 44. The lower support leg 22 and the upper support leg 31 are connected by the communicating fixing means 60.
The fixing means 60 is a screwing means constituted by an external thread 61 and an internal thread 62. A male screw member having a male screw portion 61 is in communication with the first rib insertion hole 25, the second rib insertion hole 36, and the spacer insertion hole 44.

  Moreover, in the connection structure 4 of the cage according to the present embodiment, the lower support leg 22 and the upper support leg 31 are changed by changing the correspondence relationship between the first wedge insertion hole 25 and the second wedge insertion hole 36. The relative position can be changed in the longitudinal direction. That is, the vertical position of the upper support leg 31 with respect to the lower support leg 22 can be changed.

Further, a plurality of first rib insertion holes 25 and a plurality of second rib insertion holes 36 are provided at intervals in the longitudinal direction, and a plurality of mutually corresponding pairs are formed.
The positioning projection 51 is in communication with one of the plurality of sets, and the male screw member in the fixing means 60 is in communication with the other set of the plurality of sets.
In the illustrated example, the male screw member in the fixing means 60 communicates with the first rib insertion hole 25, the second rib insertion hole 36, and the spacer insertion hole 44 located below and above the positioning protrusion 51. There is.

As described above, according to the connecting structure 4 of the brazing material according to the present embodiment, the connecting structure 4 of the brazing material includes the lower support leg portion 22, the upper support leg portion 31, the positioning member 50, and the spacer member 40. It is configured. For this reason, the increase in the number of parts can be suppressed, and the connection structure 4 of the brazing material can be configured simply and inexpensively.
Further, the positioning protrusion 51 of the positioning member 50 is in communication with the first wedge material insertion hole 25 and the second wedge material insertion hole 36. For this reason, it is possible to fix the lower support leg 22 and the upper support leg 31 by the fixing means 60 in a state where the relative position between the lower support leg 22 and the upper support leg 31 is temporarily determined, and the connection length The workability in changing the height can be improved.

In addition, since the spacer member 40 is internally fitted to the lower support leg 22, even if the lower support leg 22 and the upper support leg 31 are firmly fixed by the fixing means 60, the lower support leg The deformation of the upper support leg 31 and the upper support leg 31 can be suppressed.
Further, since the spacer member 40 is internally fitted to the lower support leg 22 and the lower support leg 22 is accommodated in the accommodation portion 31A of the upper support leg 31, the appearance of the connecting structure 4 of the reinforcing member can be obtained. You can do better.
Further, since the relative position of the lower support leg 22 and the upper support leg 31 can be changed in the vertical direction, the lower support leg 22 and the upper support leg 31 are adjusted to a desired relative position and used. can do.

Further, among the plurality of pairs corresponding to each other formed by the plurality of first rib insertion holes 25 and the second rib insertion holes 36, a pair in which the positioning member 50 is in communication and a pair in which the fixing unit 60 is in communication , Can be in different sets. Therefore, by setting the diameter of each of the first wedge material insertion hole 25 and the second wedge material insertion hole 36 to a minimum size that allows the positioning protrusion 51 and the fixing means 60 to communicate with each other, the first wedge material insertion hole It can suppress that the hole diameter of each of 25 and the 2nd filler material penetration hole 36 becomes large.
Thereby, it can suppress that a foreign material approachs into the 1st rib insertion hole 25 and the 2nd rib insertion hole 36. As shown in FIG.

Further, positioning projections 51 communicating with the first and second wedge material insertion holes 25 and 36 are also in communication with the spacer insertion hole 44. Therefore, in addition to the relative positions of the lower support leg 22 and the upper support leg 31, the position of the spacer member 40 relative to them can be positioned by the positioning member 50.
In addition, since the spacer member 40 blocks the upper end opening of the lower support leg 22, foreign matter can be prevented from entering from the upper end opening of the lower support leg 22, and the connecting structure 4 for the ribbed material can be obtained. It is possible to suppress the occurrence of problems.

  Further, since the positioning member 50 is provided with the female screw portion 62 constituting the fixing means 60, the number of parts can be reduced in comparison with a configuration in which the male screw member and the female screw member constituting the fixing means 60 are separately provided. It can be reduced.

  Further, a connection structure for detachably connecting the upper structural body 3 and the lower structural body 2 in the top-plate lifting type fixture 1 is taken as the above-mentioned connection structure 4 of the brazing material. Therefore, the work of changing the height of the top plate 32 can be easily performed.

(Modification)
Next, with reference to FIG. 10, a modification of the positioning member 50 will be described.
As shown in FIG. 10, a positioning member 50B according to the modification includes a hook portion 54. The hook portion 54 is provided on the outer surface facing the lateral surface in the left-right direction of the positioning member 50B.
The hook portion 54 is disposed at a lower portion of the outer surface of the positioning member 50B. The hook portion 54 is integrally formed with the positioning member 50B. The user of the table-lifting-type fixture 1 can temporarily hook articles such as bags on the hooks 54.

As described above, according to the positioning member 50B according to the present modification, since the hook portion 54 is provided, the user can temporarily hold belongings. At this time, even if the position of the upper support leg 31 in the vertical direction is changed with respect to the lower support leg 22, the position of the positioning member 50B provided with the hook portion 54 does not change in the vertical direction.
For this reason, compared with the structure which provided the hook part 54 in the upper structure 3, such as a top plate, for example, the position of the up-down direction of the hook part 54 can always be fixed, and the handling property of the hook part 54 is ensured. can do.

Second Embodiment
Next, a second embodiment of the present invention will be described with reference to FIG. In the following description, the same or similar members and parts as those of the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
As shown in FIG. 11, the first filler material insertion holes 25 in the filler material connection structure 4B according to the present embodiment have a first filler material through hole 25A penetrating both of the pair of facing parts 22A in the left-right direction; And a first rib positioning hole 25B penetrating through one of the facing portions 22A in the left-right direction.
In the illustrated example, the first filler positioning hole 25B is provided in the facing portion 22A located outside in the left-right direction. Two first wedge positioning holes 25B are arranged between the pair of first wedge through holes 25A in the vertical direction.

The positioning member 50 in the connecting structure 4B of the brazing material according to the present embodiment is disposed such that the positioning protrusion 51 communicates with the first brazing material positioning hole 25B and the second brazing material insertion hole 36.
The lower support leg portion 22 and the external support member in which the external thread portion 61 of the fixing means 60 is formed communicate with the first through hole 25A, the second through hole 36 and the spacer insertion hole 44. The upper support legs 31 are connected.

  As explained above, according to the connection structure 4B of the brazing material according to the present embodiment, the first adhesive material positioning hole 25B in the first adhesive material insertion hole 25 to which the positioning protrusion 51 communicates is the opposing portion It penetrates only one of 22A. Therefore, by reducing the number of the holes provided in the lower support leg portion 22, it is possible to improve the appearance and to suppress the entry of foreign matter from the holes provided in the lower support leg portion 22.

As mentioned above, although embodiment of the top-plate raising / lowering type fixture by this invention was described, this invention is not limited to said embodiment, It can change suitably in the range which does not deviate from the meaning.
For example, in each said embodiment, although the top-plate raising / lowering type fixture 1 in which the connection structure 4 of the cage | basket material was employ | adopted showed the structure which is a desk, it is not restricted to such an aspect. For example, the connection structure 4 of the brazing material may be adopted in a fixture other than the desk such as a table on which the article is placed. In addition, the top plate portion 32 may not be provided as the fixture.

Moreover, although the lower support leg part 22 which is a 1st cage | basket material showed the structure which is a tube which makes a rectangular shape by top view in said each embodiment, it is not restricted to such an aspect. The lower support leg portion 22 may be, for example, an H-shaped steel material in a top view, or may be a cylindrical tube.
Here, when the lower support leg portion 22 is a cylindrical tube, a pair of opposing portions facing each other in the radial direction are formed in the first reinforcing material insertion hole 25, and these opposing portions are integrally formed in the circumferential direction It becomes a formed configuration.

  Moreover, although the upper support leg part 31 which is a 2nd cage | basket material showed the structure which is a channel material opened toward the inner side of the left-right direction in each said embodiment, it is not restricted to such an aspect. The upper support leg portion 31 may be, for example, a channel material opened toward the outer side in the left-right direction, or may be a rectangular tube having a rectangular shape in top view. The upper support leg 31 may be a cylindrical tube.

Further, in each of the above embodiments, the lower support leg 22 and the upper support leg 31 change the correspondence relationship between the first rib insertion hole 25 and the second rib insertion hole 36 to thereby obtain relative positions in the vertical direction. However, the present invention is not limited to such an aspect.
The lower support leg 22 and the upper support leg 31 may be connected at a predetermined relative position in the vertical direction.

  Further, in each of the above-described embodiments, the first rib insertion hole 25 and the second rib insertion hole 36 are respectively provided in a plurality at intervals in the longitudinal direction, and constitute a plurality of pairs corresponding to each other. Although the part 51 and the fixing means 60 showed the structure connected in a mutually different set, it is not restricted to such an aspect. For example, the female screw portion 62 of the fixing means 60 is formed inside the positioning protrusion 51, and the positioning protrusion 51 and the fixing means 60 are in the same set of the first rib insertion hole 25 and the second rib insertion hole 36. You may communicate.

  In each of the above-described embodiments, the positioning protrusion 51 communicates with the first rib insertion hole 25 and the second rib insertion hole 36 and communicates with the spacer insertion hole 44. It is not limited to such an aspect. The positioning protrusion 51 may not communicate with the spacer insertion hole 44.

  Moreover, in each above-described each embodiment, although the spacer member 40 showed the structure which obstruct | occludes the upper end opening part of the lower support leg part 22, it is not restricted to such an aspect. The spacer member 40 may not close the upper end opening of the lower support leg.

  In each of the above embodiments, the female screw portion 62 of the fixing means 60 is provided in the positioning member 50, and the male screw member is in the first rib insertion hole 25, the second rib insertion hole 36, and the spacer insertion hole 44. Although the structure which has connected is shown, it is not restricted to such an aspect. Apart from the positioning member 50, a bolt / nut having an external thread 61 and an internal thread 62 may be adopted as the fixing means 60.

  Moreover, in the said 1st Embodiment, although the 1st filler insertion hole 25 showed the structure which penetrates both opposing part 22A in the left-right direction, it is not restricted to such an aspect. The first rib insertion hole 25 may penetrate only one of the facing portions 22A in the left-right direction.

  In addition, it is possible to replace components in the embodiment with known components as appropriate without departing from the spirit of the present invention, and the above-described modifications may be combined as appropriate.

1 top board lifting type fixture 2 lower structure 3 upper structure 4 connection structure of wood 11 floor surface 22 lower support leg (1st wood)
22A opposite part 25 first rib insertion hole 25A first rib through hole 25B first rib positioning hole 31 upper support leg (second rib)
31A accommodation portion 32 top plate portion 36 second brazing material insertion hole 40 spacer member 44 spacer insertion hole 50 positioning member 51 positioning protrusion 60 fixing means 61 male screw portion 62 female screw portion

Claims (8)

A first reinforcing member extending in the longitudinal direction and having a pair of opposing portions facing each other in the opposing direction orthogonal to the longitudinal direction;
And a second brazing material in which a housing portion for housing the first heating material therein is formed,
A connecting structure of connecting members connecting the first connecting member and the second connecting member along the longitudinal direction,
A spacer member internally fitted between the pair of facing portions of the first brazing material;
A positioning member having a positioning projection and positioning a relative position of the first and second wedge members,
In the pair of opposing portions, a first filler material insertion hole is formed which penetrates at least one opposing portion in the opposing direction,
In the second brazing material, a second brazing material insertion hole, which penetrates the second brazing material in the opposite direction, is formed corresponding to the first brazing material insertion hole,
A spacer insertion hole which penetrates the spacer member in the opposite direction is formed in the spacer member in correspondence with the first reinforcing material insertion hole,
The positioning member is disposed such that the positioning protrusion is in communication with the first wedge material insertion hole and the second wedge material insertion hole.
The first wedge material and the second wedge material are connected by fixing means communicated with the first wedge material insertion hole, the second wedge material insertion hole, and the spacer insertion hole. Material connection structure. A plurality of the first rib insertion holes and the second rib insertion holes are provided at intervals in the longitudinal direction, respectively.
The first wedge material and the second wedge material are connected so that their relative positions can be changed in the longitudinal direction by changing the correspondence relationship between the first wedge material insertion hole and the second wedge material insertion hole The connection structure of the brazing material according to claim 1, characterized in that A plurality of the first rib insertion holes and a plurality of second rib insertion holes are provided at intervals in the longitudinal direction, and constitute a plurality of pairs corresponding to each other,
The positioning projection communicates with one of the plurality of sets,
The connecting structure according to claim 1 or 2, wherein the fixing means is in communication with another set of the plurality of sets.   The said positioning protrusion is connected to the said 1st rib insertion hole and the said 2nd rib insertion hole, and it is connected to the said spacer insertion hole while it connects in it, The said 1st projection material is characterized by the above-mentioned. The connection structure of the brazing material described in the paragraph. The first brazing material is a pipe material,
5. The connecting structure according to any one of claims 1 to 4, wherein the spacer member closes an open end of the first reinforcing member in the longitudinal direction. The fixing means is a screwing means constituted by an external thread and an internal thread.
The positioning member is provided with the female screw portion;
The external thread member which has the said external thread part is connected to the said 1st rib insertion hole, the said 2nd rib insertion hole, and the said spacer insertion hole, The any one of the Claims 1-5 characterized by the above-mentioned. The connection structure of the brazing material described in. The first filler material insertion hole includes a first filler material through hole penetrating both of the pair of opposed parts in the opposite direction, and a first filler material positioning hole penetrating one of the pair of opposed parts in the opposite direction. Equipped
The positioning member is disposed such that the positioning protrusion communicates with the first wedge positioning hole and the second wedge insertion hole.
The first wedge material and the second wedge material are connected by fixing means communicated with the first wedge material through hole, the second wedge material insertion hole, and the spacer insertion hole. The connection structure of the brazing material according to any one of Items 1 to 6. A lower structure placed on the floor,
An upper structure provided with a top plate,
And a connecting structure for detachably connecting the upper structure to the lower structure.
In the table-lifting type fixture capable of changing the connection height of the upper structure to the lower structure,
The said connection structure is made into the connection structure of the brazing material as described in any one of Claim 1 to 7, The top-plate raising / lowering type furniture device.

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