JP3692270B2 - Workbench coupling device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a work table connection device used for building work, indoor work, etc., and in particular, a work table in which support legs are connected to the left and right ends of a work stage plate so as to be openable and closable by rotating pivot fittings. It is related with the work-table coupling device for arranging and connecting in the left-right direction.
[0002]
[Prior art]
The above workbench usually has a substantially trapezoidal shape with support legs attached so that the legs are opened at a larger angle than the right angle to the work stage plate. There are also many opportunities to use them side by side in the direction. Thus, when using them side by side in the longitudinal direction, the support legs that open at an angle larger than a right angle interfere with each other at the end of the work table, and there is a disadvantage that a large gap is formed between the work stage plates. For this reason, conventionally, an auxiliary top plate is bridged and connected between the work stage plates of two adjacent work tables.
[0003]
In order to bridge and connect the auxiliary stage plate between the work stage plates of the two worktables as described above, the applicant of the present invention, as described in Japanese Patent No. 2997427, A shaft insertion hole is formed in the work stage plate side mounting plate of the rotary pivot fitting that connects the support leg so as to be openable and closable, and the shaft is inserted into the shaft insertion hole so that both ends of the shaft are connected to the front and rear ends of the work stage plate. A work table is provided that protrudes from the edge and suspends a holding top plate in a detachable manner by using the protruding end portion of the shaft.
[0004]
[Problems to be solved by the invention]
According to this, the problem of the gap generated between the work stage plates of the work tables to be connected is solved, but a dedicated auxiliary stage plate is required, and this auxiliary stage plate is used only when the work tables are connected. There is a problem that the cost is high. Accordingly, an object of the present invention is to provide a work table connecting device that can directly connect adjacent work stage plates of two work tables without using a dedicated auxiliary stage plate, and has a simple structure and easy connection operation. And
[0005]
[Means for Solving the Problems]
The work table coupling apparatus according to the first aspect of the present invention is a work table in which work tables 1 in which support legs 4 are pivotally attached to both left and right ends of a work stage plate 3 by a rotary pivot fitting 5 are arranged side by side in the left-right direction. A connecting device comprising a connecting tool 2 interposed between the work tables 1 and 1 at a position where the work tables 1 and 1 to be connected are close to each other and being flush with the work stage plates 3 and 3; The connecting tool 2 and the work platforms 1 and 1 are detachably connected by a connecting means S, and the connecting tool 2 is at least between the work stage plates 3 and 3 of the work tables 1 and 1 to be connected. And a pair of connecting plates 16, 16 provided before and after the connecting member 19. The connecting means S includes a connecting shaft 15, and each work table 1 is rotated. Insert the shaft into the work stage plate side mounting plate 6 of the pivot fitting 5 In addition to providing a hole 14, the connecting plate 16 of the connector 2 is provided with a hole 17 corresponding to the shaft insertion hole 14 of the rotating pivot fitting 5 of one worktable 1 and a rotating pivot of the other worktable 1. A hole 18 corresponding to the shaft insertion hole 14 of the fitting 5 is provided adjacent in the left-right direction, and both the holes 17 and 18 of the connecting plate 16 and the shaft insertion holes 14 and 14 on both the work platforms 1 and 1 are provided. Each of the connecting shafts 15 is inserted to connect the connecting plate 16 and the two mounting plates 6, 6. At this time, both supports on the opposite sides of the work platforms 1, 1 to be connected are connected. A pin hole 11 provided in the mounting plate 6 on the one work stage plate side by folding one of the support legs 4 on the back side of the work stage plate 3 by the rotating pivot fitting 5. The pin 12 that is urged by the spring and protrudes from the support leg 4 side It engaged with the engaging pin hole 13a of the biasing plate 7, whereby it is made of a structure adapted to its閉脚state is maintained.
[0006]
In the work table coupling device according to the second aspect of the present invention, the outer peripheral edge of the lower end of the connection plate 16 of the connector 2 is connected to the edge of the attachment plate 6 of the rotary pivot fitting 5 of both work platforms 1 and 1 to be connected. The support wall portion 20 on which is supported is formed with a required width in the work table width direction.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a state in which two work tables 1 and 1 are arranged in the left-right direction which is the longitudinal direction and connected by the work table connecting device 2 of the present invention, (A) is a plan view, and (B) is a front view. FIG. FIG. 2 is an external perspective view of a connecting device for connecting both work tables 1 and 1, and FIG. 3 is an enlarged detailed front view thereof. Each work table 1 includes a work stage plate 3 and support legs 4 and 4 attached to the left and right ends of the work stage plate 4 by means of rotary pivot fittings 5. The support legs 4 are provided on the work stage plate 3. It can be opened and closed between a closed leg position folded on the lower surface and an open leg position opened at an angle larger than a right angle with respect to the work stage plate 3. When the two work tables 1 and 1 are connected by the connecting tool 2, as shown in FIG. 1B, one of the adjacent support legs 4 and 4 of the both work tables 1 and 1 is in a closed leg posture. Folded.
[0008]
The work stage plate 3 of each work table 1 is composed of an expansion and contraction scaffold plate in which a pair of left and right scaffold plate bodies 3a and 3b are connected so as to be relatively movable in the length direction. In FIG. FIG. 2 shows a stretched state, and FIG. 2 shows a state in which both scaffold plate bodies 3a and 3b are contracted. Each support leg 4 includes a ladder-like leg main body 4a and a pair of extendable struts 4b and 4b connected to the leg main body 4a so as to be extendable and contractible. The work stage plate 3 and the support legs 4 are each formed of an aluminum mold, and the connector 2 and the rotary pivot fitting 5 are each formed of a steel plate or the like.
[0009]
As shown in FIG. 4, the rotary pivot fitting 5 that attaches the support leg 4 to the work stage plate 3 so as to be openable and closable is an attachment plate fixed to the support leg 4 outside the attachment plate 6 fixed to the work stage plate 3. 7 is polymerized, and these mounting plates 6 and 7 are pivotally attached by a pivot shaft 8. Specifically, a contact surface 9 is formed on the lower edge of the attachment portion 6a of the attachment plate 6 with respect to the work stage plate 3 so as to incline slightly downward from the end of the work stage plate 3 over an appropriate range. Further, a substantially fan-shaped connecting portion 7b is formed to project obliquely upward from one side of the work stage plate 3 at the upper end of the mounting portion 7a with respect to the support leg 4 of the mounting plate 7, and the other side of the upper end of the mounting plate 7b is L. A contact surface 10 is formed which is bent in a letter shape and is in contact with the contact surface 9 at the lower end of the mounting plate 6 to prevent further rotation.
[0010]
In addition, a pin hole 11 is formed at an appropriate distance diagonally upward from the pivot shaft 8 toward the edge of the work stage plate 3 at the lower portion of the mounting portion 6a of the mounting plate 6. A pin 12 biased by a spring (not shown) is provided so as to protrude from the pin hole 11 toward the mounting plate 7, and the connecting portion 7 b of the mounting plate 7 is in the open leg state and the closed leg state of the support leg 4. Engagement pin holes 13a and 13b are formed to fit the pin holes 11 and engage with the pins 12 respectively. The support leg 4 can be opened and closed by retreating the pin 12 against the urging force of the spring by operating means (not shown). That is, the support leg 4 shown in the right side of FIG. 3 or in FIG. 4A has a pin 12 protruding from the pin hole 11 of the mounting plate 6 on the work stage plate 3 side by being biased by a spring. The mounting leg 7 is engaged with the engaging pin hole 13a to maintain the open leg state, and the support leg 4 shown in the left side of FIG. 3 or FIG. The pin 12 that is urged by the spring from the pin hole 11 of the mounting plate 6 on the stage plate 3 side and protrudes is engaged with the engaging pin hole 13b of the mounting plate 7 on the support leg 4 side, thereby maintaining the closed leg state. It is like that.
[0011]
Further, a shaft insertion hole 14 is formed on the outer upper end portion of the attachment portion 6a of the attachment plate 6, and a key groove-shaped notch portion 14a is formed obliquely below the shaft insertion hole 14. As shown in FIGS. 2 and 3, the connecting shaft 15 as a connecting tool can be passed through the shaft insertion hole 14 of the mounting plate 6 in the front-rear direction through the end side of the work stage plate 3. ing. As shown in FIG. 6, engaging pins 15 a that can pass through the notches 14 a of the shaft insertion holes 14 are provided at both ends of the coupling shaft 15 so as to have a phase difference of 90 °.
[0012]
2, 3, 5, and 6, the connector 2 is a work stage plate-side mounting plate of the rotary pivot fitting 5 of one work table 1 of two work tables 1 and 1 to be connected. 6 and a work stage plate-side mounting plate 6 of the rotary pivot fitting 5 of the other workbench 1 are provided with a pair of front and rear connection plates 16, and one of the connection plates 16 is connected to each other. The hole 17 corresponding to the shaft insertion hole 14 provided in the mounting plate 6 of the rotating pivot fitting 5 of the work table 1 and the shaft insertion provided in the mounting plate 6 of the rotating pivot fitting 5 of the other work table 1. Two holes with a hole 18 corresponding to the hole 14 are provided adjacent to each other in the left-right direction, and similar notches 17a and 18a are formed in the holes 17 at positions corresponding to the notches 14a of the shaft insertion hole 14. ing.
[0013]
As shown in FIG. 6, the pair of front and rear connection plates 16, 16 of the connector 2 are formed so as to close the gap between the work stage plates 3, 3 of both work tables 1, 1 to be connected. The formed connecting member 19 and the arcuate side wall portions 19a, 19a contacting the arcuate portions 6b, 6b (FIG. 5) of the work tables 1, 1 are formed into an integral structure of a cylindrical body having a substantially triangular cross section. Has been. The connecting plates 16, 16, the connecting member 19, and the arcuate side wall portions 19 a, 19 a that form the connecting tool 2 are formed of steel plates because they require sufficient strength and rigidity. Each connecting plate 16 is attached to the ends of the connecting member 19 and the side wall 19a with screws a, but may be fixed by welding. Further, the connecting plate 16 is formed in a generally triangular shape as shown in FIGS. 3 and 5 to 7, and the outer peripheral edge of the arc-shaped portion 16 a at the lower end thereof is bent inward in the work table width direction and required. A support wall 20 having a width is formed.
[0014]
As described above, the connecting tool 2 interposed between the two work tables 1 and 1 has the front and rear connection plates 16 and 16 abutting against the front and rear side surfaces of the both work tables 1 and 1, and the left and right side walls 19a and 19a thereof. Since the end portions 6b and 6b of the work platforms 1 and 1 are in contact with each other and the connecting member 19 is in contact with the upper surfaces of the end portions of the work platforms 1 and 1, the work tables 1 and 1 are supported stably. Since it is an integral structure of a cylindrical body having a substantially triangular cross section, it has sufficient strength. Needless to say, the connector 2 does not particularly require the side walls 19a, 19a, but is preferably provided in order to provide stable support and sufficient strength.
[0015]
In order to connect the two work tables 1 and 1 using the connecting tool 2 having the above-described configuration, as shown in FIG. 5, the connecting plates 16 and 16 constituting the connecting tool 2 are connected. The integral structure with the member 19 is first straddled over the work stage plate 3 end side of the work table 1 on the right side of the work tables 1, 1, so that both connecting plates 16, 16 are the end parts of the work stage plate 3. Are attached so that both mounting plates 6 and 6 of the rotary pivot fitting 5 are sandwiched from both sides. At this time, in the connector 2, the inward support wall portion 20 of the lower end arc-shaped portion 16 a of each connection plate 16 is abutted and supported by the outer edge of the attachment portion 7 a of the attachment plate 7 and the upper end of the connecting member 19. The edge portion 19a is mounted on the rotary pivot fitting 5 in a state where the edge 19a rides on the end portion of the work stage plate 3 so that the hole 18 of each connecting plate 16 is attached to the mounting plate 6 of each rotary pivot fitting 5. It matches with the shaft insertion hole 14. In this case, as described above, the support wall portion 20 at the lower end of each connecting plate 16 that is in contact with and supported by the outer edge of the mounting plate 7 has a width that is sufficiently wider than the thickness of the mounting plate 6. The connector 2 formed of an integral structure of the plates 16 and 16 and the connecting member 19 can be slightly moved in the work table width direction, and the attachment position with respect to the rotary pivot fitting 5 can be adjusted.
[0016]
Thus after attaching the connector 2 in one of the working table 1, as shown in FIG. 5, the pins 12 provided on the rotating pivot bracket 5 two mounting plates 6a, 7 b pin holes 11 and of the engaging pin hole 13b The work table 1 on the other side (the left side in the figure) closed with the support leg 4 on one side folded to the back side of the work stage plate 3 is brought close to the work stage plate 3 at the end of the work stage plate 3. Both attachment plates 6 and 6 of the rotary pivot fitting 5 are inserted and attached to both connection plates 16 and 16 of the connector 2. At this time, the front end edge of the attachment portion 6a of each attachment plate 6 abuts and engages the opposite side surface of the connecting member 19, and the lower end edge of the attachment portion 6a supports the inward support of the lower end arc-shaped portion 16a of each connection plate 16 Supported by the wall portion 20 (see FIG. 7), the holes 17 of the connection plates 16 are aligned with the shaft insertion holes 14 of the mounting plates 6 of the rotary pivot fittings 5. At this time, since the support wall 20 at the lower end of each connecting plate 16 has a width that is sufficiently wider than the thickness of the mounting plate 6, the work table 1 on the left side in FIG. Slight movement adjustment is possible.
[0017]
When the two work platforms 1 and 1 are connected to each other as described above, the support legs 4 and 4 of the work tables 1 and 1 on the connection side facing each other out of the support legs 4 at both the left and right ends of the work stage plate 3. Among them, the work tables 3 and 3 are connected to each other in a state in which the support leg 4 on one side is folded to the back side of the work stage plate 3, so that the work stage plate is used when each support leg 4 is used alone. Even when used in a state where it is opened at an angle larger than a right angle with respect to 3, when the two work tables 1, 1 are connected, the work legs 3, 3 are folded by folding the support legs 4 on one side as described above. The other support legs 4 can be connected with the gap between them as small as possible, and the other support leg 4 supports the work tables 3 and 3 of the connection part in an open leg state. Supporting power at the connecting part of the will not decline. At this time, one of the support legs 4 folded is a pin 12 protruding from the pin hole 11 of the mounting plate 6 on the work stage plate 3 side by the spring as described above. Since the closed leg state is maintained by engaging with the engagement pin hole 13b, the support leg 4 on the side to be folded is not unexpectedly shaken or disturbed.
[0018]
Thereafter, the connecting shafts 15 and 15 are inserted from the holes 17 and 18 of the connecting plate 16 into the shaft insertion holes 14 and 14 on the rotating pivot fitting 5 side, respectively. 5 are connected to each other, and thereby both work tables 1 and 1 are connected. When inserting the connecting shaft 15, for example, the shaft insertion of the rear side mounting plate 6 from the hole 17 of the front side connecting plate 16 of both the front and rear connecting plates 16, 16 and the shaft insertion hole 14 of the front side mounting plate 6 is performed. When the connecting shaft 15 is inserted into the hole 14 and the hole 17 of the rear side connecting plate 16, one engaging pin 15a is aligned with the notches 17a and 14a of the holes 17 and 14 on the front side. After the insertion, the connecting shaft 15 is rotated by 90 ° so that the other engagement pin 15a is aligned with the notches 17a and 14a of the holes 17 and 14 on the rear side and inserted as it is. Is brought into contact with the inner surface of the mounting plate 6, the connecting shaft 15 is rotated by an appropriate angle so that both the engaging pins 15 a can be engaged with the inner surface of the mounting plate 6 and not accidentally come out. .
[0019]
In the embodiment described above, the connecting means S includes the connecting shaft 15, and the shaft insertion hole 14 is provided in the work stage plate side mounting plate 6 of the rotary pivot fitting 5 of each worktable 1 and the connection is made. The connecting plate 16 constituting the tool 2 has a hole 17 corresponding to the shaft insertion hole 14 of the rotating pivot fitting 5 of one worktable 1 and a shaft insertion of the rotating pivot fitting 5 of the other worktable 1. A hole 18 corresponding to the hole 14 is provided adjacent to each other in the left-right direction. When connecting the two work tables 1, 1, the connection plate of the connector 2 is connected to the end of the work stage plate 3 of one of the work tables 1. 16, and then the other work table 1, which is previously closed by folding the support leg 4, is brought close to the mounting plate 6 of the rotary pivot fitting 5 at the end of the work stage plate 3. 16 and both holes 17 of the connecting plate 16 18 and the shafts 14 and 14 on the two worktables 1 and 1 side are respectively inserted through the connecting shafts 15 to connect the connecting plate 16 and the mounting plates 6 and 6 on the worktables 1 and 1 side. By doing so, both the work platforms 1 and 1 can be easily connected. Further, since the connector 2 has a simple structure, it can be easily manufactured and can be provided at low cost.
[0020]
Further, a pair of front and rear connection plates 16 constituting the connection tool 2 are provided, and both connection plates 16 and 16 close the gap between the work stage plates 3 and 3 of both work platforms 1 and 1 to be connected. Since it is connected by the formed connecting member 19, it is possible to connect the two work tables 1 and 1 more easily, and there is no gap between the work stage plates 3 and 3 of the both work tables 1 and 1. It can be used more safely without the operator's feet getting caught inside.
[0021]
In addition to the connecting shaft 15 described in the above embodiment, bolts and nuts are used as the detachable connecting tool for connecting the connecting plate 16 and the mounting plates 6 and 6 on both work platforms 1 and 1. In this case, the connecting plate 16 is provided with a pair of left and right bolt insertion holes in place of the pair of left and right shaft insertion holes 14, 14, and a mounting plate for the rotary pivot fitting 5 of each worktable 1. 6 is also provided with a bolt insertion product.
[0022]
【The invention's effect】
According to the first aspect of the present invention, there is provided a work table coupling device for connecting work tables in which support legs are pivotally attached to the left and right ends of a work stage plate so as to be openable and closable by rotating pivot fittings. A connecting tool is provided between the two work benches at the position where the two work benches are close to each other and are flush with each work stage plate, and the connecting tool and the two work tables are detachably connected by a connecting means. Thus, the two work tables can be easily connected with a device having a simple structure.
[0023]
Further, according to the present invention, the connecting tool includes a connecting member that closes a gap between work stage plates of both work platforms to be connected, and a pair of connecting plates provided before and after the connecting member. The work table can be connected more easily, and there is no gap between the work stage plates of both work tables, and the surfaces of both work tables and the connecting tool are flush with each other. It can be used more safely without getting caught.
[0024]
Furthermore, according to the present invention, the connecting means comprises a connecting shaft, a shaft insertion hole is provided in the work stage plate side mounting plate of the rotary pivot fitting of each work table, and the connecting plate of the connecting tool. Are provided with a hole corresponding to the shaft insertion hole of the rotating pivot fitting of one work table and a hole corresponding to the shaft insertion hole of the rotating pivot fitting of the other work table adjacent to each other in the left-right direction. By connecting the connecting plate and the two mounting plates through the two shafts and the shaft insertion holes on the two work table sides, the two work tables can be easily and quickly operated. Can be linked to.
[0025]
Furthermore, according to the present invention, one of the support legs on opposite sides of both work platforms to be connected is folded on the back side of the work stage plate by the rotary pivot fitting. In this case, the two work platforms are connected by the connecting means, so that even when the support legs are used at an angle larger than a right angle with respect to the work stage plate, As described above, when the work table is connected, the support leg on one side can be folded so that the gap between the two work tables can be reduced as much as possible. Therefore, the supporting force at the connecting portion of the two work tables does not decrease. At this time, one of the support legs folded is operated by a pin that is urged by a spring from the pin hole of the mounting plate on the work stage plate side and engages with the engagement pin hole of the mounting plate on the support leg side. Since the folded state is maintained on the back surface side of the stage plate, the support leg on the folded side does not unexpectedly shake or get in the way.
[0026]
As described in claim 2, the support wall portion on which the mounting plate edge of the rotating pivot fitting of both work platforms to be connected is supported on the outer peripheral edge of the lower end portion of the connection plate with a required width in the work table width direction. As a result, the connecting plate side can be moved and adjusted in the width direction of the worktable relative to the rotating pivot mounting bracket side with the support wall supporting the mounting plate edge of the rotating pivot mounting bracket. Adjustments can be made.
[Brief description of the drawings]
FIG. 1 shows a state in which two work tables are arranged in the left-right direction, which is the longitudinal direction thereof, and connected by the work table connecting device of the present invention, where (A) is a plan view and (B) is a front view. is there.
FIG. 2 is an external perspective view of a connecting device that connects both work tables.
FIG. 3 is an enlarged detailed front view of the coupling device.
4A is a front view of a rotating pivot fitting on a workbench in an open leg state, and FIG. 4B is a front view of a rotating pivot fitting on a workbench in a closed leg state.
FIG. 5 is a front view illustrating a usage state of the coupling device.
FIG. 6 is a perspective view showing a connecting shaft that is an example of a connecting tool and a connecting means including a pair of front and rear connecting plates and a connecting member constituting the connecting device.
7 is a cross-sectional view taken along line XX of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Worktable 2 Connecting tool 3 Work stage plate 4 Support leg 5 Rotating pivot fitting 6 Working stage plate side mounting plate of rotating pivot fitting 7 Support leg side mounting plate of rotating pivot fitting S Connecting means 14 Shaft insertion hole 16 Connecting Plate 17, 18 hole 19 connecting member

Claims (2)

A work table coupling device for connecting work tables in which left and right support legs are pivotally attached to both left and right sides of a work stage plate by a pivoting metal fitting in a horizontal direction, and the work tables to be connected are brought close to each other. A connecting tool that is located between the two work benches in a position and is flush with each work stage plate, and that the connecting tool and the two work benches are detachably connected by connecting means, and the connecting tool is at least connected And a pair of connecting plates provided before and after the connecting member, and the connecting means includes a connecting shaft, and each working table includes: A shaft insertion hole is provided in the work stage plate side mounting plate of the rotary pivot fitting, and a hole corresponding to the shaft penetration hole of the rotary pivot fitting of one of the work tables is provided on the coupling plate of the coupling tool. The other workbench A hole corresponding to the shaft insertion hole of the rotary pivot fitting is provided adjacent in the left-right direction, and the connection shaft is inserted into both the hole of the connection plate and both shaft insertion holes on the work platform side, and the connection In this case, one of the support legs on the opposite sides of the work platforms to be connected is operated by the rotary pivot fitting. A pin that is urged by a spring from a pin hole provided on the mounting plate on the one work stage plate side by being folded to the back side of the stage plate engages with an engaging pin hole on the mounting plate on the support leg side Thus, the workbench coupling device is adapted to maintain the closed leg state .   A support wall portion is formed on the outer peripheral edge of the lower end portion of the coupling plate of the coupling tool with a required width in the width direction of the platform to support the mounting plate edge of the rotary pivot fittings of both work platforms to be coupled. The workbench coupling device according to 1.

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