JP5554729B2 - Connecting material between support columns - Google Patents

Description

  The present invention relates to a connecting member between support columns of a work table that can be suitably used for a support frame constituting the work table.

In a workbench that includes a pair of support frames and a base plate supported above by both of these support frames, work at a high place on the base plate and move the work table laterally down from the base plate Since this operation may be repeated many times, a caster device may be attached to the lower end portions of both support frames for the purpose of facilitating the lateral movement.
In order to attach this caster device, an attachment member having a parallel (horizontal) surface to the ground floor is provided at the lower end of the support frame (see, for example, Patent Document 1).

  By the way, in such a work table, there is one in which the grounding angle of the pair of support frames (the angle formed between the direction of inclination so as to approach each other and the floor surface) is different (for example, Patent Documents). (See 2nd grade).

JP 10-252259 A JP 2006-31867 A

In order to attach a caster device or the like to support frames having different contact angles, attachment members having different shapes corresponding to the contact angles are required for the support frames. For this reason, the number of parts constituting the workbench has increased, resulting in troublesome parts management and assembling work, and increased costs.
In some cases, a strip (such as a square pipe) having a substantially rectangular cross section was installed at the lower end of the support frame, and the lower surface of this strip was used as a horizontal caster device mounting surface. Must be a mounting structure that does not relate to the ground angle of the support frame. In other words, since the end of the strip material is brought into contact with a pair of width direction struts constituting the support frame and only screwed from the outside of the strut, the action of preventing the strip material from rotating in the circumferential direction (the mounting surface of the caster device) In some cases, it is difficult to obtain a fixing force that keeps the

  The present invention has been made in view of the above circumstances, and is commonly used for each support frame when attaching an attachment member such as a caster device to a work table configured to have a support frame having a different contact angle. It is another object of the present invention to provide a connection member between support columns of a work table that can be easily and reliably obtained in the circumferential direction.

In order to achieve the above object, the present invention has taken the following measures.
In other words, the column-to-column connection member 1 of the work table according to the present invention includes a column 10 having a main wall 12 and a side wall 13 at least at one end thereof. The support frames 5 and 6 are formed by connecting the support columns 10 and 10, and the work table 2 is formed by connecting the pair of support frames 5 and 6 in the direction of approaching each other toward the upper part and connecting at the upper part. The support frames 5, 6 are provided with inter-strut coupling members 1 that couple the pair of width-direction struts 10, 10. The inter-strut coupling member 1 is connected to the pair of width-direction struts 10, 10 at both ends. A connecting portion 16 having a substantially square cross section to be connected is formed. The connecting portion 16 includes a first corner portion 21 having a narrow angle substantially equal to the ground contact angle α of the support frame 5, and the first corner portion 21. A second corner portion 23 having a diagonal angle different from that of the first corner portion 21 is formed, and One corner portion 22 disposed between the one corner portion 21 and the second corner portion 23 is formed at a right angle, and the surface 30 adjacent to the first corner portion 21 of the connecting portion 16 is the above-described pillar 10. It is characterized by being connected to the support column 10 in surface contact with the inner surface of the side wall 13.

The support column 10 is formed of a groove-shaped strip having a U-shaped cross section having side walls 13 at both ends of the main wall 12, and the support frames 5, 6 have a pair of the support columns 10, 10 facing the groove. The connecting member 1 between the struts is formed in a substantially square cross section that is the same as the connecting portion 16 over the entire length, and the four surfaces 27 to 30 of the connecting portion 16 are respectively larger than the groove width of the strut 10. It is also assumed that a screw threaded portion 32 to which a screw 33 penetrating the main wall 12 of the column 10 can be threaded is formed at least at two positions of the four corner portions 21 to 24 of the connecting portion 16. Is preferred.

  The work table 2 includes a main support frame 5 and a sub-support frame 6 having different ground angles α and β, and the connecting portion 16 of the inter-strut connecting member 1 has a main angle of the first corner portion 21 as a main angle. The contact angle of the support frame 5 is set to be substantially the same angle, and the included angle of the second corner portion 23 is set to be substantially the same as the contact angle β of the sub-support frame 6, and is adjacent to the second corner portion 23. It is preferable that the surface 29 is formed so as to be in surface contact with the inner surface of the side wall 13 which is the opposed inner side of the pair of support columns 10 and 10 of the sub-support frame 6.

  When connecting attachment members such as caster devices to a workbench configured to have a support frame with a different contact angle, the work strut connecting member of the workbench according to the present invention can be commonly used for each support frame, The circumferential detent can be obtained easily and reliably.

It is the side view which showed the attachment state of the connection material between support | pillars. It is a side view of the work bench | platform which attached the connection material between support | pillars to upper and lower parts. It is an AA arrow directional view of FIG. It is the BB sectional view taken on the line of FIG. It is the side view which showed embodiment of the connection material between support | pillars concerning this invention. It is the side view which showed another attachment state of the connection material between support | pillars. It is a side view of the work bench | platform which attached the connection material between support | pillars to the lower part. It is CC line arrow line view of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 thru | or FIG. 5 has shown embodiment of the connection material 1 between support | pillars which concerns on this invention. As shown in FIGS. 2 and 3, the inter-strut connecting member 1 is used as a base when attaching the attachment member 3 such as the caster device 3 a, the handrail device 3 b, and the grip bar 3 c to the work table 2.
The work table 2 has a pair of support frames 5 and 6 that incline toward each other toward the upper part, and the upper ends of the support frames 5 and 6 are connected to the base plate 7 so as to be foldable. It has become. The support frames 5 and 6 are connected by a connecting arm 9 whose middle part in the longitudinal direction is bendable. With these, the support frames 5 and 6 are opened and closed in a direction in which the base plate 7 is moved toward and away from each other. Can be made.

Each of the support frames 5 and 6 includes a pair of support columns 10 and 10 provided at predetermined intervals in the width direction, and a horizontal beam 11 that is horizontally installed so as to connect the support columns 10 and 10 to each other. And is configured.
As shown in FIG. 4, the column 10 is formed of a strip material having a main wall 12 and a side wall 13 at least at one end of the main wall 12. In this embodiment, the case where the side wall 13 is provided in the both ends of the main wall 12 and the support | pillar 10 is formed with the groove-shaped strip material of a cross-sectional U-shape is shown. When configuring each support frame 5, 6, the pair of support columns 10, 10 are arranged with the side walls 13, 13 facing each other inside (the grooves 14, 14 facing each other).

  In this work table 2, the ground contact angle α in which one support frame 5 is inclined with respect to the floor surface F and the ground contact angle β in which the other support frame 6 is inclined with respect to the floor surface F are different angles. Yes. As described above, since the support frames 5 and 6 are inclined in the direction in which they approach each other, the ground contact angles α and β are both narrow angles (acute angles) smaller than a right angle. In the illustrated example, the contact angle α is approximately 73 ° and the contact angle β is approximately 84 °. However, these angles are not limited numerically, and are approximately 45 ° to 90 ° (90 °). It may be changed within the range of “°”.

In the present embodiment, the support frame 5 having a relatively small contact angle α is used as the lifting frame (hereinafter referred to as “main support frame 5”), and the support frame 6 having a large contact angle β is the rear frame. (Hereinafter referred to as “sub-supporting frame 6”).
In the main support frame 5, a plurality of horizontal bars 11 are arranged while maintaining a constant interval in the vertical direction, and each is used as a step bar. In the sub-support frame 6, the number of crosspieces 11 is one, but two or more may be provided.

The strut connecting member 1 is provided so as to connect the pair of struts 10, 10 in the width direction in the main support frame 5 and the sub support frame 6 separately from the horizontal rail 11. Therefore, as shown in FIGS. 3 and 4, the inter-strut coupling member 1 is formed as a coupling portion 16 whose both ends are coupled to the pair of struts 10 and 10 in the width direction.
As shown in FIG. 5, the connecting portion 16 is formed to have a substantially square cross section with rounded chamfers at the four corners, and four flat surfaces between the four corners 21 to 24. 27 to 30 are formed.

  In addition, this connection material 1 between support | pillars shall be the hollow material made from an aluminum alloy, and shall be formed in the substantially square cross section same as the connection part 16 over the full length. Therefore, this inter-strut coupling material 1 can be formed by extrusion or drawing, which is preferable. Moreover, when the connection material 1 between support | pillars is formed in the substantially square cross section same as the connection part 16 over the full length direction, the both ends at the time of a cutting | disconnection can be formed as the connection part 16 as it is, There is an advantage that adaptation to a case where the mutual distance is different can be easily performed at low cost.

One corner 21 (hereinafter referred to as “first corner 21”) is formed with a included angle that is substantially the same as the ground contact angle α of the main support frame 5. In addition, a corner portion 23 (hereinafter referred to as “second corner portion 23”) that is opposite to the first corner portion 21 is formed with a narrow angle different from that of the first corner portion 21. The included angle of the second corner portion 23 is set to be substantially the same as the ground contact angle β of the sub-support frame 6.
Furthermore, one of the corners arranged between the first corner 21 and the second corner 23 is formed as a right angle corner 22 having a right angle. Further, the corner 24 that is the diagonal of the right angle portion 22 is formed to have a wider angle (obtuse angle) that is larger than the right angle.

  The four surfaces 27 to 30 of the connecting portion 16 are each formed smaller than the groove width of the groove 14 included in the support column 10. Therefore, the connecting portion 16 can be fitted into the groove 14 even if any of the surfaces 27 to 30 are matched to the groove width. That is, the connecting portion 16 is not limited in any way in the circumferential direction of rotation when fitted in the groove 14, and any of the surfaces 27 to 30 can be the upper surface.

  The first corner portion 21, the second corner portion 23, and the right-angle corner portion 22 are formed with screw screw portions 32 at the inner corner portions thereof. The screw threaded portion 32 is provided on the main wall 12 when the connecting portion 16 is fitted into the groove 14 of the support column 10 and the end portion of the connecting portion 16 is brought into contact with the inner surface of the main wall 12. This is for screwing a screw 33 penetrating through the through-hole, and is formed by a hole along the longitudinal direction of the inter-strut connecting member 1 from the end side of the connecting portion 16. The screw threaded portion 32 may have a female screw formed in advance on the inner surface of the hole, or may be a small diameter pilot hole for forming the female screw.

  The distance from the screw threaded portion 32 of the right angle portion 22 to the screw threaded portion 32 of the first corner portion 21, and the screw threaded portion 32 of the second corner portion 23 from the screw threaded portion 32 of the right angle portion 22. It is different from the distance. In this case, when the surface 27 is the top surface, the right angle corner portion 22 and the screw threaded portion 32 of the second corner portion 23 are used, and when the surface 28 is the top surface, the right angle corner portion 22 and the first corner portion 21 are The screw threaded portion 32 is used.

  If it does in this way, the hole space | interval of the two holes which penetrate the two screws 33 in the main wall 12 of the support | pillar 10 of the main support frame 5, and the two screws 33 in the main wall 12 of the support | pillar 10 of the subsupport frame 6 will be mentioned. The distance between the two holes penetrating the hole is different. Therefore, the rotational direction in the circumferential direction when the inter-strut coupling member 1 is coupled to the main support frame 5 and the circumferential rotational direction when the inter-strut coupling member 1 is coupled to the sub-support frame 6. The advantage is that there is no mistake.

In this embodiment, by using the screw 33 as a tapping screw, the screw threaded portion 32 is a pilot hole without a female screw. In order to prevent excessive machining resistance during screwing rotation (tapping), the inner peripheral surface of the screw threaded portion 32 has a small diameter portion (threaded surface) on which a female screw is formed and a female screw. The large-diameter portions (non-screw concave portions) that are not formed are arranged alternately. Further, the screw threaded portion 32 has a C-shaped cross section in which a notch groove is formed in a part in the circumferential direction. When excessive machining resistance is generated when the screw 33 is threaded, overload is released in the diameter increasing direction. The action (peripheral wall damage prevention action) is obtained.

  In the case where the inter-strut connecting member 1 is formed by extrusion or drawing, it is preferable that the screw threaded portion 32 be formed in the same cross section over the entire length of the inter-strut connecting member 1 in the longitudinal direction. is there. The reason is the same as the above-mentioned reason that it is preferable to form the entire length in the longitudinal direction of the inter-strut connecting member 1 in a substantially rectangular cross section. In addition, there is an advantage that the screw threaded portion 32 acts as reinforcement (internal rib) of the inter-strut connecting member 1.

  As shown in FIG. 1, the strut connecting member 1 having such a configuration is such that, with respect to the main support frame 5, the end of the connecting portion 16 abuts the inner surface of the main wall 12 of the strut 10 and the first corner. The connecting portion 16 is fitted into the groove 14 of the column 10 so that one surface 30 adjacent to the portion 21 is in surface contact with the inner surface of one side wall 13 of the column 10 (see FIG. 4). Then, the screw 33 is screwed into the screw screwing portion 32.

  In this way, by connecting the strut connecting member 1 to the strut 10, the strut connecting member 1 has a circumferential detent force due to surface contact between the surface 30 and the side wall 13 in addition to the fastening force by the screw 33. Will be obtained and will be securely fixed. In addition, one surface 27 adjacent to the right angle portion 22 can be arranged to be an upward horizontal plane, and the other surface 28 can be arranged to be a vertical surface. Therefore, as shown in FIGS. 2 and 3, for example, the vertical surface 28 can be used to mount the caster device 3a with the shock absorber mechanism (vertical horizontal mounting type), the gripping rod 3c, and the like. .

Similarly, with respect to the auxiliary support frame 6, the end of the connecting portion 16 abuts on the inner surface of the main wall 12 of the support column 10, and the other surface 29 adjacent to the second corner portion 23 is one side wall of the support column 10. The connecting portion 16 is fitted into the groove 14 of the support column 10 so as to be in surface contact with the inner surface of the column 13, and the screw 33 is screwed into the screw screwing portion 32 from the outside of the main wall 12.
In this way, by connecting the strut connecting material 1 to the strut 10, the strut connecting material 1 has a circumferential detent force due to surface contact between the surface 29 and the side wall 13 in addition to the fastening force by the screw 33. Will be obtained and will be securely fixed. In addition, one surface 28 adjacent to the right angle portion 22 can be disposed so as to be an upward horizontal surface, and the other surface 27 can be disposed so as to be a vertical surface. Therefore, for example, the caster device 3a with the shock absorber mechanism (vertical horizontal mounting type), the handrail device 3b, and the like can be mounted using the surface 27 which is a vertical surface.

The main support frame 5 and the sub-support frame 6 are connected to the left and right support columns 10 and 10 by the base plate 7 and the cross rail 11, and the inter-support column connecting member 1 also serves to connect the left and right support columns 10 and 10. Yes.
The support | pillar connection material 1 can also be used as shown in FIGS. That is, in the main support frame 5, one surface 30 adjacent to the first corner 21 is in surface contact with the inner surface of one side wall 13 of the column 10 and is connected to the column 10. By doing in this way, one surface 27 adjacent to the right angle portion 22 can be disposed so as to be a downward horizontal surface, and the other surface 28 can be disposed so as to be a vertical surface. Therefore, as shown in FIGS. 7 and 8, for example, a caster device 3 a that emphasizes load resistance (a flat downward mounting type) can be mounted using a surface 27 that is a horizontal plane.

  On the other hand, in the sub-support frame 6, the other surface 29 adjacent to the second corner portion 23 is in surface contact with the inner surface of one side wall 13 of the support column 10 and is connected to the support column 10. By doing in this way, one surface 28 adjacent to the right angle portion 22 can be arranged to be a downward horizontal plane, and the other surface 27 can be arranged to be a vertical plane. Therefore, for example, the caster device 3a and the like that emphasize load resistance (flat downward mounting type) can be mounted using the surface 28 that is a horizontal plane.

The present invention is not limited to the embodiment described above, and can be changed as appropriate according to the embodiment.
For example, the strut connecting material 1 may be disposed on either the main support frame 5 or the sub-supporting frame 6 either on the upper side or on the lower side thereof. May be used as both the work table 2 having the main support frame 5 with the contact angle α and the work table 2 having the main support frame 5 with the contact angle β.

  The strut connecting member 1 is used by connecting the outer surface of the connecting portion 16 to the inner side walls 13 and 13 between the struts 10 of the main support frame 5 and the struts 10 of the sub support frame 6. It is good also as what is connected and used so that the outer surface of the connection part 16 may be surface-contacted to the side walls 13 and 13 which become an outer side mutually. Depending on the case, it is also possible to use the connection so that one is inside and the other is outside.

In the connecting portion 16, the screw threaded portion 32 may be provided at all of the four corner portions 21, 22, 23, 24, or may be provided at only two of them.
In the connecting portion 16, the distances from the screw threaded portion 32 of the right angle portion 22 to the screw threaded portion 32 of the first corner portion 21 and the second corner portion 23 may be equalized. That is, when the surface 27 is the upper surface, the screwed portion 32 of the right angle portion 22 and the second corner portion 23 is used, and when the surface 28 is the upper surface, the screw of the right angle portion 22 and the first corner portion 21 is used. Even if the screwing portion 32 is used, two holes penetrating the two screws 33 in the main wall 12 of the column 10 of the main support frame 5 and two holes in the main wall 12 of the column 10 of the sub-support frame 6 are used. The two holes penetrating the screw 33 can have the same hole interval.

The cross-sectional shape of the connecting portion 16 may be changed from rounded chamfering to square chamfering, or may be a quadrangular cross section without these chamfering.
The portion in the longitudinal direction excluding the connecting portion 16 does not necessarily have a substantially rectangular cross section, and may be a circular cross section or an H-shaped or C-shaped cross section.
The work table 2 may be configured as a stepladder where the upper ends of the support frames 5 and 6 are connected to each other.

  The strut 10 is not only a groove having a cross-sectional shape, but also a material having an L-shaped cross-section or a cross-sectional shape in which one side of a quadrangle or opposite two sides extend (project) beyond the corner. It is good. In short, what is necessary is that the main wall 12 is provided with at least one side wall 13.

1 Connecting material between struts 2 Work table 5 Support frame (main support frame)
6 Support frame (sub support frame)
10 struts 12 main wall 13 side wall 14 groove 16 connecting portion 21 corner (first corner)
22 Right angle corner 23 Corner (second corner)
27-30 surface 32 screwed part

Claims (3)

A support column is formed by a strip having a main wall and at least one side wall of the main wall, and a pair of the support columns are formed with the side walls facing each other to form a support frame. Inclined in the direction to be connected at the top, a work table is formed,
The support frame is provided with a strut connecting material that connects a pair of struts in the width direction,
The connecting member between the struts is formed with a connecting portion having a substantially quadrangular cross section connected to the pair of struts in the width direction at both ends, and the connecting portion has a first included angle that is substantially the same as the contact angle of the support frame. A corner and a second corner having a different angle from the first corner at the opposite corner of the first corner are formed and disposed between the first corner and the second corner. One of the corners is formed at a right angle,
A strut connecting member for a work table, wherein a surface adjacent to the first corner of the connecting portion is in surface contact with the inner surface of the side wall of the strut and connected to the strut. The support column is formed of a groove-shaped strip having a U-shaped cross section having side walls at both ends of the main wall, and the support frame is formed by connecting a pair of the support columns with the grooves facing each other.
The strut connecting member is formed in a substantially rectangular cross section that is the same as the connecting portion over the entire length, and each of the four surfaces of the connecting portion is formed smaller than the groove width of the strut, and at least two of the four corners of the connecting portion. 2. A connecting member between support columns of a workbench according to claim 1, wherein a screw screwing portion capable of screwing a screw penetrating the main wall of the column is formed at a location. The work table has a main support frame and a sub support frame having different ground contact angles,
The connecting portion of the connecting member between the struts is set so that the included angle of the first corner is substantially the same as the contact angle of the main support frame, and the included angle of the second corner is approximately the same as the contact angle of the sub-support frame. The surface adjacent to the second corner is formed so as to be in surface contact with the inner surface of the side wall which is the opposite inner side of the pair of support columns of the sub-supporting frame. The connecting material between the columns of the work bench described in 1.

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