JP2011163068A5 - - Google Patents

Description

Portable worktable

  The present invention relates to a portable work table used when performing work such as interior finishing of a ceiling, wiring in a ceiling, piping, and the like at a construction site or the like.

  When an operator rides on the top board and performs the above-mentioned work, he / she must work while confirming the work position of his / her foot so as not to step on the top board. However, in actual work, it is difficult to check the end of the top side of the spar or the end of the wife, and the phenomenon of foot depressing from the end of the spar or end of the wife tends to occur.

  In order to prevent an unexpected fall when climbing up and down the ladder-shaped leg, the applicant first uses a clue bar that is erected at the four corners of the top plate and faces the longitudinal direction of the top plate. The girder side end sensing rod is bridged between the upper end portions of the two handholding rods, and the wife side end portion sensing rod is hung between the upper end portions of the two handholding rods facing the short direction of the top plate. When touching the girder side end sensing rod or the wife side end sensing rod, the operator senses that it is the girder side end or the wives side end of the top plate, and thereby working on the top plate In addition, we have applied for a portable workbench that prevents accidental drops from the girder side end and wife side end of the top plate.

  In the workbench of the previous application, both ends of the girder side end sensing rod are detachably attached via attachments between the upper ends of the two clasp bars facing the longitudinal direction of the top plate, Since both ends of the wife-side sensing rod are detachably attached between the upper ends of the two-handed clasp bars facing in the short direction, respectively, it takes time and effort to attach and remove the sensing rod. There was a problem.

  In view of the above circumstances, an object of the present invention is to provide a portable work table that can quickly and easily attach and detach a girder side end sensing rod and a wife side end sensing rod.

  Means for solving the above problems will be described with reference numerals in the embodiments described later. The invention according to claim 1 is provided with ladder-like legs 2 and 2 at both ends of the top plate 1 and the top. In the portable work table in which the clasp bar 5 is erected at the four corners of the plate 1, the top side of the top plate 1 is located between the upper ends of the two clasp bars 5, 5 facing the longitudinal direction of the top plate 1. In order to bridge the beam-side end sensing rod 7 for informing the rod, a rod mounting pin 11 protruding upward is provided at the upper end of each clue bar 5, and rods are provided at both ends of the beam-side end sensing rod 7, respectively. A pin hole 16 that can be inserted into the mounting pin 11 is provided, and both ends of the girder side end sensing rod 7 are connected to the rod mounting pins 11 and 11 at the upper end portions of the two handle bars 5 and 5 facing in the longitudinal direction of the top plate 1. It is characterized by being inserted through the pin holes 16 and 16 of the part.

  The invention according to claim 2 is a portable work table in which ladder-like legs 2 and 2 are provided at both ends of the top plate 1 and clasp bars 5 are erected at the four corners of the top plate 1. When bridging the wive end detection rod 8 for notifying that it is the wive end of the top plate 1 between the upper ends of the two clasp bars 5 and 5 facing in the hand direction, the upper end of each clue bar 5 A rod mounting pin 11 that protrudes upward is provided, and pin holes 16 that can be inserted into the rod mounting pin 11 are provided at both ends of the wife side end sensing rod 8 so as to oppose the top plate 1 in the short direction. The pin holes 16 and 16 of the both ends of the wife side end sensing rod 8 are inserted into the rod mounting pins 11 and 11 protruding from the upper ends of the two clasp bars 5 and 5.

  The invention according to claim 3 is a portable work table in which ladder-like legs 2 and 2 are provided at both ends of the top plate 1, and clasp bars 5 are erected at the four corners of the top plate 1. A girder side end sensing rod 7 for informing that it is a girder side end of the top plate 1 is bridged between the upper end portions of the two hand-holding bars 5 and 5 facing in the direction, and in the short direction of the top plate 1. When spanning the wive end detection rod 8 for notifying that it is the wive end of the top plate 1 between the upper ends of the opposing two clasp bars 5, 5, the upper end of each clasp bar 5 is directed upward. Protruding rod mounting pins 11 are provided, and pin holes 16 that can be inserted into the rod mounting pins 11 are provided at both ends of the girder side end sensing rod 7 and both ends of the wife side end sensing rod 8, respectively. Rod mounting pins 11 projecting from the upper ends of the two clasp bars 5, 5 facing the longitudinal direction of the plate 1, 1 is inserted through pin holes 16, 16 at both ends of the spar-side end sensing rod 7, and rod mounting pins 11, 11 projecting from the upper end portion of the two-hand hook bar 5 facing the short direction of the top plate 1. It is characterized by being inserted through pin holes 16 and 16 at both ends of the wife side end sensing rod 8.

  A fourth aspect of the present invention provides the portable worktable according to any one of the first to third aspects, wherein a pin mounting base 10 is provided at an upper end portion of each clue bar 5 and a rod mounting projecting upward on the pin mounting base 10 is provided. It is characterized by attaching a working pin 11.

  Claim 5 is the portable work bench according to any one of claims 1 to 3, wherein an extension rod having a required length is provided at the upper end portion of the existing clue bar 5 erected at the four corners of the top plate 1. 5a is added by a connecting tool 9, and a rod mounting pin 11 protruding upward is provided at the upper end portion of the adding rod 5a.

  Claim 6 is the portable worktable according to any one of claims 1 to 3, wherein an extension rod having a required length is provided at the upper end of the existing clue bar 5 erected at the four corners of the top plate 1. 5a is added by a connecting tool 9, a pin mounting base 10 is provided at the upper end of the connecting bar 5a, and a rod mounting pin 11 protruding upward is mounted on the pin mounting base 10.

  A seventh aspect of the present invention is the portable worktable according to any one of the first to sixth aspects, wherein a retaining claw 11a is protruded from the side surface of the pin 11 by a spring 11b at the upper side of each rod mounting pin 11. It is biased and attached so as to be immersed in the pin 11 by pressing the claw 11a against the spring 11b.

  The eighth aspect of the present invention is the portable work bench according to any one of the first to sixth aspects, wherein a retaining pin 21 is provided on the upper side of each rod mounting pin 11, and the rod mounting pin 11 is always attached by its own weight. It is characterized by being mounted so as to fall within the diameter of the rod mounting pin 11 by falling sideways so as to intersect and lifting one end side.

  The effect of the invention by the above-described solution means will be described with reference numerals of the embodiments described later. According to the invention according to claim 1, the rod mounting pins 11 projecting upward at the upper ends of the clue bars 5 are described. The pin 11 is normally urged to protrude from the side surface of the pin 11 by the spring 11b on the upper side of each pin 11. However, the pin 11 is pushed into the pin 11 against the spring 11b so as to be immersed inside the pin 11. Since the pin holes 16 that can be inserted into the rod mounting pins 11 are provided at both ends of the girder side end sensing rod 7, both the clasp bars 5, 5 facing the longitudinal direction of the top plate 1 are provided. By inserting the pin holes 16 and 16 at both ends of the girder side end sensing rod 7 into the rod mounting pins 11 and 11 protruding from the upper end, the girder side end sensing rod 7 can be quickly and easily attached. . Further, when removing the girder-side end sensing rod 7, it is only necessary to lift the end of the sensing rod 7, so that the sensing rod 7 can be removed quickly and easily.

  According to the second aspect of the present invention, the pin 11 for attaching the rod that protrudes upward is provided at the upper end portion of each clue bar 5, and each pin 11 is provided with a retaining claw 11 a on the upper side and the pin 11 by the spring 11 b at all times. Protrusively biased from the side, but is provided so as to be immersed in the pin 11 by pressing the claw 11b against the spring 11b, and the rod end pin 8 is inserted into the rod mounting pin 11 at each end of the wife end detection rod 8. Since the possible pin holes 16 are provided, both ends of the wife side end sensing rod 8 are connected to the rod mounting pins 11 and 11 protruding from the upper end portions of the two handle bars 5 and 5 facing in the short direction of the top plate 1. By inserting the pin holes 16 and 16 of the part, the wife end detection rod 8 can be quickly and easily attached. Further, when the wife side end sensing rod 8 is removed, the end of the wife side end sensing rod 8 may be lifted, so that the sensing rod 8 can be removed quickly and easily.

  According to the third aspect of the present invention, the pin 11 for attaching the rod protruding upward is provided at the upper end portion of each clue bar 5, and each pin 11 is provided with a retaining claw 11 a on the upper side and is always pin 11 by the spring 11 b. Protrusively biased from the side, but provided so as to be inserted into the pin 11 by pressing the claw 11b against the spring 11b, and both ends of the girder side end sensing rod 7 and both ends of the wife side end sensing rod 8 Since the pin holes 16 through which the rod mounting pins 11 can be inserted are provided in the respective portions, the rod mounting pins 11, 11 projecting from the upper ends of the two handle bars 5, 5 facing the longitudinal direction of the top plate 1 are provided. By inserting the pin holes 16, 16 at both ends of the spar-side end sensing rod 7, the spar-side end sensing rod 7 can be quickly and easily attached, and both hands facing the short direction of the top plate 1. At the upper end of hanging rods 5 and 5 By inserting the pin holes 16, 16 at both ends of the gable end sensing rod 8 to the rod mounting pins 11 and 11 to leave, the gable end sensing rod 8 rapidly, can be easily mounted. Further, when the sensing rods 7 and 8 are removed, the ends of the sensing rods 7 and 8 may be lifted, so that the sensing rods 7 and 8 can be removed quickly and easily.

  According to the invention of claim 4, the pin mounting base 10 is provided at the upper end of each clue bar 5, and the rod mounting pin 11 is mounted on the pin mounting base 10. Compared with mounting the rod mounting pin 11 directly on the part, the mounting of the pin 11 is easier, and when a ready-made crossed rod is used as the girder side end sensing rod 7 or the wife side end sensing rod 8 In addition, since the mounting position of the rod mounting pin 11 can be set in accordance with the length of the rod, a ready-made rod with crossed bars can be used effectively.

  According to the fifth aspect of the present invention, there are various lengths of the clue bar 5 installed on the top plate 1 of the work table T. When the length is short, an extension rod 5a having a required length is added to the upper end portion of the existing clue bar 5 by the connecting tool 9, and the top plate is added to the existing clue bar 5 through the connecting tool 9. The sensing rod 7 or 8 can be bridged between the extension rods 5a, 5a opposed to each other in the longitudinal direction or the lateral direction of 1 so that a good sensing action can be exhibited.

  According to the sixth aspect of the present invention, the extension rod 5a having a required length is added to the upper end portion of the existing clue bar 5 by the connector 9, and the pin mounting base 10 is provided on the upper end portion of the extension rod 5a. Since the rod mounting pin 11 is mounted on the pin mounting base 10, it is easier to install the pin 11 than the rod mounting pin 11 directly installed at the upper end of the extension rod 5a, and the girder side. When an off-the-shelf crossing rod is used as the end sensing rod 7 or the wife side end sensing rod 8, the mounting position of the rod mounting pin 11 can be set according to the length of the rod. The rods with crossed muscles can be used effectively.

  As in the invention according to claim 7, by attaching a retaining claw 11a to the upper side of each rod mounting pin 11, the girder side end sensing rod 7 or wife side end sensing inserted into the rod mounting pin 11 is provided. It is possible to easily prevent the rod 8 from coming out.

  As in the invention according to claim 8, by attaching the retaining pin 21 to the upper side of each rod mounting pin 11, the girder side end sensing rod 7 or the wife side end sensing inserted into the rod mounting pin 11 is provided. It is possible to easily prevent the rod 8 from coming out.

(a) is a top view of the portable worktable which concerns on this invention, (b) is a front view. (a) is a side view of the above portable worktable, and (b) is a front view showing a state in which folded portable worktables are stacked in a plurality of stages. (a) is an enlarged view of the part indicated by the arrow A in FIG. 1 (a), (b) is an enlarged view of the part indicated by the arrow B in FIG. 1 (b), and (c) is the portable work platform described above. FIG. A state where the end of the wife side end sensing rod and the end of the girder side sensing rod are overlapped and attached to the rod mounting pin at the upper end of the clue bar erected at the four corners of the top plate. It is a perspective view shown. (a) is a front view of a state in which an extension rod is added to the upper end of the clue bar by a connecting tool, and a rod mounting pin protrudes from the upper end of the extension rod via a pin mounting base, and (b) is a side view. (C) is a plan view, (d) is an enlarged sectional view taken along the line DD of (a), and (e) is an enlarged sectional view taken along the line EE of (a). (a) is a front view of a pin mounting base in which a rod mounting pin with a retaining claw is projected, (b) is a side view, and (c) is a plan view. (a) is a front view of a pin mounting base in which a rod mounting pin with a retaining pin protrudes, (b) is a side view, and (c) is a plan view. (a) is a plan view of the girder side end sensing rod or the wife side end sensing rod, (b) is a front view, and (c) is a side view.

  An embodiment of the present invention will be described below with reference to the drawings. In the portable work table T shown in FIGS. 1A and 1B and FIG. Each of the ladder-like legs 2 and 2 is folded by the rotating metal fitting 3 so as to extend along the lower surface of the top plate 1 and the leg-opened state in which the legs 1 and 2 are inclined and spread as shown in FIG. A stay 4 is provided so as to be openable and closable between a closed leg state (see FIG. 2B) and a bendable stay 4 is interposed between the top plate 1 and the leg 2. As shown in FIG. 2 (a), the ladder-like leg 2 is composed of a pair of leg posts 2a, 2a arranged in a slightly divergent shape, and a step rail laid in a plurality of stages between the two leg posts 2a, 2a. 2b.

  At the four corners of the top plate 1, a clasp bar 5 is provided so as to be positioned at the elevator port between the leg 2 and the top plate 1, and each clasp bar 5 has a lower end on the outer surface side of the leg 2. A standing posture as shown by a solid line in FIGS. 1 (b) and 2 (a), which is pivotally mounted by a mounting bracket 6 (see FIG. 2 (a)) mounted on the upper end, As indicated by phantom lines in the figure, the posture can be changed to a folded posture folded along the pillar 2a of the ladder-like leg 2.

  A girder side end sensing rod 7 for informing that the top side of the top plate 1 is the wife side end is bridged between the top ends of the two clasp bars 5 and 5 facing the longitudinal direction of the top plate 1. Between the upper end portions of the two clasp bars 5 and 5 facing the short direction of the top plate 1, a wive end detection rod 8 for informing that it is the wive end of the top 1 is bridged. It is like that. These girder-side end sensing rods 7 and wife-side end sensing rods 8 come into contact with the girder-side end portions of the top plate 1 when the operator working on the top plate 1 touches them. In addition, it is for detecting that it is the end on the side of the wife, and it is weak in structural strength so that it collapses when the operator puts weight on it or touches it a little strongly, and the upper end of the opposite clue bar The role is completely different from that of the upper horizontal rail that is bridged between the sections as a handrail. However, the use of a handrail member having a high structural strength is not excluded.

  The structure of the upper end part side of each clue bar 5 and the structure of the girder side end part and the wife side end part sensing rods 7 and 8 will be described in detail below.

  Since the clue bar 5 has various lengths, when the clue bar 5 is short when the clasp bar 5 is erected at the four corners of the top plate 1, As shown in FIG. 2 (a), an extension rod 5 a having a required length may be added to the upper end portion of the existing clue bar 5 by a connector 9. As an example of a specific structure of the connector 9, as shown in FIGS. 5 (a), (b), (d) and (e), the upper end of the existing clue bar 5 and the lower end of the extension bar 5a are shown. The U-shaped frame main body 9a is fitted over the upper portion, the upper side of the U-shaped frame main body 9a and the lower end of the extension rod 5a are coupled by a rivet R, and the overhang flanges 9ao, By fastening 9ao with bolts and nuts 9b, an extension bar 5a is added to and connected to the upper end of the clasp bar 5.

  As described above, the pin mounting base 10 is provided at the upper end of the extension bar 5a added to the upper end of the clasp bar 5, and the rod mounting pin 11 is provided on the pin mounting base 10 so as to protrude upward. It has been. As shown in FIGS. 5 and 6, the pin mounting base 10 has a U-shaped frame main body 12 that is long in the longitudinal direction of the top plate composed of an upper plate 12 a and both side plates 12 b and 12 b, and an upper plate portion 13 a and both sides. The base body 12 is composed of a U-shaped additional frame 13 comprising plate portions 13b and 13b. One end of the base body 12 is fitted to the upper end of the extension rod 5a and fixed by a rivet R. 13 is fixed by welding in a state where the upper plate portion 13a is flush with the upper plate 12a of the table body 12 at the outer surface tip portion of one side plate 12b of the table body 12.

  As shown in FIGS. 6A to 6C, the rod mounting pin 11 includes a cylindrical pin body 11o having a chamfered outer peripheral edge at the upper end to form an insertion guide 14, and the pin body 11o. The upper end of the stopper claw 11a is pivotally attached to the pin body 11o by the pivot 15 and is normally biased by the spring 11b. The pin 11 protrudes from the side surface of the pin body 11o, but is pushed into the recess 11c of the pin body 11o by pressing the claw 11a against the spring 11b. An upper plate 12a of the main body 12 and an upper plate portion 13a adjacent to the adjoining frame 13 are fixed upward at a boundary portion. Note that the rod mounting pin 11 has an upper plate 12a or an attached frame 13 according to the length of the crossing rod when the ready-made crossing bar is used as the sensing rods 7 and 8 as described later. It can attach to the required position of the upper board part 13a.

  The rod mounting pin 11 shown in FIG. 3 to FIG. 6 is provided with a spring-type retaining claw 11a. FIG. 7 shows a broken pin-type retaining stopper in place of the spring-type retaining claw 11a. The rod mounting pin 11 provided with the pin 11d is shown. FIGS. 7A to 7C correspond to FIGS. 6A to 6C, and FIG. 7A is a pin mounting base on which a rod mounting pin 11 with a retaining pin 11d is projected. 10 is a front view, (b) is a side view, and (c) is a plan view.

  The rod mounting pin 11 shown in FIG. 7 is tilted sideways so as to cross the rod mounting pin 11 by its own weight at the upper side of the cylindrical pin main body 11o, and the one end side of the pin is fixed. It is attached so as to fit within the diameter of the rod attachment pin 11 by lifting. The retaining pin 11d is formed in a rectangular plate shape, and has a long hole 11e nearer one end in the longitudinal direction. The pin 11d is notched from the upper end surface of the pin body 11o to the middle in the height direction. By inserting the mounting shaft 11g penetrating the pin body 11o through the elongated hole 11e of the pin 11d and inserting it into the formed groove 11f, the rod mounting pin is always under its own weight as shown in FIG. 7 (b). The pin 11d is tilted sideways so as to intersect with the cross 11 and exerts a retaining function, and as shown by the phantom line in FIG. The ends of the sensing rods 7 and 8 that have been inserted and can be extracted. The upper end portion of the cylindrical pin body 11o forms a hemispherical insertion guide 14. The mounting position of the rod mounting pin 11 with the retaining pin 11d on the pin mounting base 10 and the structure of the pin mounting base 10 are the same as those shown in FIG.

  Pin holes 16 through which the rod mounting pins 11 can be inserted are provided at both ends of the girder side end sensing rod 7 and the wife side end sensing rod 8. As shown in FIGS. 8 (a) and 8 (b), each of the sensing rods 7 and 8 is formed by cutting a steel pipe material to a predetermined length and biasing both end portions 7a and 7a or 8a and 8a, respectively. It is formed in a flat plate shape, and pin holes 16 are formed through the flat plate end 7a or 8a. Each pin hole 16 has an inner diameter slightly larger than the outer diameter of the rod mounting pin 11. . Since these girder-side end sensing rods 7 and wife-side end sensing rods 8 have the same structure as the rods used as crossing bars for the frame scaffold, it is possible to use such ready-made crossing bars as they are. it can.

  In order to bridge the girder side end sensing rod 7 between the upper ends of the cue rods 5 and 5 facing in the longitudinal direction of the top plate 1, pin holes 16 and 16 at both ends of the sensing rod 7 are opposed to each other. It is only necessary to insert the rod mounting pins 11, 11 protruding from the upper ends of the clue rods 5, 5 to be inserted from above, and the claw rod 5 that opposes the wife end detection rod 8 in the short direction of the top plate 1. The pin holes 16 and 16 at both ends of the sensing rod 8 are connected to the rod mounting pins 11 and 11 projecting from the upper ends of the opposite clasp bars 5 and 5, respectively. It only has to be inserted from above. When the pin holes 16 at the ends of the sensing rods 7 and 8 are inserted into the rod mounting pins 11 from above, in the case of the rod mounting pins 11 with the spring-type retaining claws 11a, from FIG. As can be seen, a retaining claw 11a that extends from the side surface of the pin body 11o to the upper side of the rod mounting pin 11 and projects in a tapered shape is pushed into the recess 11c of the pin body 11o against the urging force of the spring 11b. When the pin hole 16 of the sensing rods 7 and 8 passes through the retaining claw 11a and reaches the lower side of the pin 11, the retaining claw 11a returns to the original position by the urging force of the spring 11b, and the sensing rods 7 and 8 8 is prevented from coming out. When the sensing rods 7 and 8 are removed, the sensing rods 7 and 8 can be removed simply by lifting the ends of the sensing rods 7 and 8 while holding the retaining claws 11a of the rod mounting pins 11 by hand. . In the case of the broken pin type retaining pin 11d, as shown in FIG. 7, with one end of the retaining pin 11d lifted so that the pin 11d fits within the diameter of the rod mounting pin 11, After inserting the pin hole 16 at the end of the sensing rods 7 and 8 into the rod mounting pin 11 and then releasing the hand from the pin 11d, the pin 11d crosses the rod mounting pin 11 by its own weight in a cross shape. It is possible to prevent the end portions of the sensing rods 7 and 8 from falling out by falling sideways. When the sensing rods 7 and 8 are removed, they can be easily removed by lifting one end of the retaining pin 11d.

  The usage of the portable worktable T configured as described above will be described. FIG. 1 shows the use state of the worktable T. Both legs 2 and 2 are opened, and each clasp bar 5 stands up. A girder-side end sensing rod 7 is bridged between the upper ends of the clasp bars 5 and 5 facing the longitudinal direction of the top plate 1 and held in the posture, and facing the short direction of the top plate 1. The wife side end sensing rod 8 is bridged between the upper ends of the clue rods 5 and 5 to be engaged.

  As shown in FIGS. 3 (a) and 3 (b), in the embodiment shown in FIGS. 1 to 3, the girder side end sensing rod 7 and the wife side end sensing rod 8 are bridged. After the sensing rod 7 is passed over the rod mounting pins 11, 11 at the upper ends of the cue bars 5, 5 facing the longitudinal direction of the top plate 1, the wife side end sensing rod 8 is placed in the short direction of the top plate 1. Are hooked on the rod mounting pins 11 and 11 at the upper ends of the clue bars 5 and 5 facing each other. In this way, when the operator ascends to the top plate 1 using the leg 2 or descends from the top 1 using the leg 2, the one end side of the wife side end sensing rod 8 is lifted to attach the rod. If it is removed from the pin 11, it can be freely rotated around the other end of the rod 8 as shown in FIG. 3 (c), and the operator can easily open the elevator by himself / herself. It is easy to move up and down. FIG. 4 shows the girder side end sensing rod after the wife side end sensing rod 8 is hung over the rod mounting pins 11, 11 at the upper ends of the cue rods 5, 5 facing the short direction of the top plate 1. A state is shown in which the rod 7 is stretched over the rod mounting pins 11 and 11 at the upper ends of the cue rods 5 and 5 facing the longitudinal direction of the top plate 1.

  As described above, the girder side end sensing rod 7 is bridged between the upper ends of the cue rods 5 and 5 facing the longitudinal direction of the top plate 1 and the cue rods 5 and 5 facing the short direction of the top plate 1. When the operator working on the top plate 1 touches the girder side end sensing rod 7, the point touched is the top plate 1. It is possible to detect the end of the top side of the top plate 1 because it is possible to detect that it is the end of the top side of the top plate 1. Accidents such as falling from can be prevented.

  When the work table T is folded after use, first, the girder side end sensing rod 7 and the wife side end sensing rod 8 are removed. When removing the sensing rods 7 and 8, as described above, in the case of the rod mounting pin 11 with the spring-type retaining claw 11a, the rod mounting pin 11 protruding from the upper end of the clasp bar 5 is removed. In the case where the retaining claw 11a is pressed by hand, and in the case of the broken pin type retaining pin 11d, the end of each retaining rod 7 and 8 is lifted after the one end of the retaining pin 11d is lifted. Good. After removing the girder side end sensing rod 7 and the wife side end sensing rod 8 in this way, each clue bar 5 is attached to the leg 2 as shown in phantom lines in FIGS. 1 (b) and 2 (a). 2, and then, as shown in FIG. 2 (b), both legs 2, 2 are folded so as to be parallel to the lower surface of the top plate 1, and the entire work table T is closed. Fold it to a flat state. Thus, by folding the entire work table T in a flat state, it becomes convenient for transportation and storage. FIG. 2 (b) shows a state in which the work table T folded in a flat state is repeated so that the legs 2 are positioned on the upper side and stacked in a plurality of stages.

  According to the portable worktable T of the embodiment described above, the rod mounting pins 11 that protrude upward are provided at the upper ends of the clue bars 5, and the retaining claws 11a are always provided on the upper sides of the pins 11. The spring 11b is protruded and biased from the side surface of the pin 11, but is provided so as to be immersed inside the pin 11 by pressing the claw 11b against the spring 11b, and both ends of the girder side end sensing rod 7 and the wife side end sensing. Since the pin holes 16 that can be inserted into the rod mounting pins 11 are provided at both ends of the rod 8, the rod mounting pins that protrude from the upper end portions of the two-handed rods 5 and 5 that face the longitudinal direction of the top plate 1. By inserting the pin holes 16 and 16 at both ends of the spar side end sensing rod 7 into the spar 11 and 11, the girder side end sensing rod 7 can be quickly and easily attached. Two-handed clasp bar opposite to 5, By inserting the pin holes 16 and 16 at both ends of the wife side end sensing rod 8 into the rod mounting pins 11 and 11 protruding from the upper end of the wife, the wife side end sensing rod 8 can be quickly and easily attached. it can. In addition, by inserting the pin holes 16 at the ends of the sensing rods 7 and 8 into the rod mounting pins 11, it is possible to automatically prevent the locking by the action of the locking claw 11a or the locking pin 11d. When the sensing rods 7 and 8 are removed, the spring-type retaining claw 11a of the rod mounting pin 11 is pressed by hand, and in the case of the broken pin-type retaining pin 11d, one end of the pin 11d is lifted. Since the end portions of the sensing rods 7 and 8 need only be lifted in a state where the sensing rods 7 and 8 are lifted, the sensing rods 7 and 8 can be removed quickly and easily.

  In the portable work table T according to the embodiment described above, the girder-side end sensing rod 7 is bridged between the upper ends of the two handle bars 5, 5 facing the longitudinal direction of the top plate 1, and the top plate 1. The wives side end sensing rod 8 is bridged between the upper end portions of the two-handed clasp bars 5 and 5 facing each other in the short side direction. Only the sensing rod 7 may be attached. That is, the pin holes 16, 16 at both ends of the spar-side end sensing rod 7 are inserted into the rod mounting pins 11, 11 protruding from the upper ends of the two clasp bars 5, 5 facing the longitudinal direction of the top plate 1. Just be fine.

  Alternatively, the girder side end sensing rod 7 may be omitted and only the wife side end sensing rod 8 may be attached. That is, the pin holes 16, 16 at both ends of the wife side end sensing rod 8 are inserted into the rod mounting pins 11, 11 protruding from the upper ends of the both-hand holding rods 5, 5 facing the short direction of the top plate 1. You can just do it.

  Further, in the portable work table T of the above-described embodiment, the pin mounting base 10 is installed at the upper end of the extension bar 5 a that is added to the upper end of the clue bar 5, and the rod mounting pin is mounted on the pin mounting base 10. 11 is projected upward, but the rod mounting pin 11 may be projected directly on the upper end of the clasp bar 5 or the upper end of the extension bar 5a added to the upper end of the clasp bar 5.

  However, as in this embodiment, the pin mounting base 10 is installed on the upper end of the clasp bar 5 or the upper end of the extension bar 5a added to the upper end of the clasp bar 5. If the rod mounting pin 11 is provided in a projecting manner, the rod mounting pin 11 can be easily mounted, and a prefabricated crossing rod is used as the girder side end sensing rod 7 and the wife side end sensing rod 8. When using the rod, it is possible to arbitrarily set the mounting position of the rod mounting pin 11 in accordance with the length of the ready-made rod. There is an advantage that can be.

T Transportable work table 1 Top plate 2 Leg 5 Catch bar 5a Extension rod 7 Girder side end sensing rod 8 Wife side end sensing rod 9 Connector 10 Pin mounting 11 Rod mounting pin 11o Pin body 11a Retaining claw 11b Spring 11d Retaining pin 11e Long hole 11f Groove 11g Mounting shaft 12 Base body 13 Attached frame 16 Pin hole at the end of the sensing rod

Claims (8)

  In a portable work bench with ladder-shaped legs on both ends of the top plate and clasp bars upright at the four corners of the top plate, the top plate is placed between the top ends of the two clasp bars facing the longitudinal direction of the top plate. In order to bridge the beam-side end sensing rod for notifying that it is the beam-side end, a rod mounting pin that protrudes upward is provided at the upper end of each clue bar, and both ends of the beam-side end sensing rod are provided. Each has a pin hole that can be inserted into the rod mounting pin, and the pin mounting holes at both ends of the girder side end sensing rod are inserted into the rod mounting pins at the upper end of the two-way clasp bar facing the longitudinal direction of the top plate. A portable work bench.   In a portable work bench that has ladder-shaped legs at both ends of the top plate and has clue bars erected at the four corners of the top plate, the top plate is located between the upper ends of both hand-holding rods facing the short direction of the top plate. In order to bridge the wife side end sensing rod to inform that it is the wife side end, a rod mounting pin protruding upward is provided at the upper end of each clue bar, and both ends of the wife side end sensing rod Each has a pin hole that can be inserted into the rod mounting pin, and the rod mounting pin that protrudes from the upper end of the two-handed clasp bar facing the short direction of the top plate has pins on both ends of the wife side end sensing rod. A portable work bench that is inserted through a hole.   In a portable work bench with ladder-shaped legs on both ends of the top plate and clasp bars upright at the four corners of the top plate, the top plate is placed between the top ends of the two clasp bars facing the longitudinal direction of the top plate. Cross the girder end sensing rod to notify that it is the girder side end, and make sure that it is the end of the top side of the couch between the upper ends of the two clasp bars facing the short side of the couch. In order to bridge the wife side end sensing rod for notification, a rod mounting pin that protrudes upward is provided at the upper end of each clue bar, both ends of the girder side end sensing rod and both ends of the wife side end sensing rod Each pin has a pin hole that can be inserted into the rod mounting pin, and the rod mounting pin that protrudes at the upper end of the two-way clasp bar facing the longitudinal direction of the top plate has pins on both ends of the girder side end sensing rod A double-handed clasp stick that passes through the hole and faces in the short direction of the top plate Portable workbench comprising inserting the pin holes at both ends of the gable end sensing rod to the rod mounting pins projecting on the upper end.   The portable worktable in any one of Claims 1-3 which provide a pin mounting base in the upper end part of each clue bar, and attach the rod mounting pin which protrudes upwards on this pin mounting base.   At the upper end of an existing clue bar standing at the four corners of the top plate, an extension rod of the required length is added by a coupler, and a rod mounting pin that protrudes upward is provided at the upper end of the extension rod. The portable work bench according to any one of claims 1 to 3.   An extension rod of the required length is added to the upper end of an existing clue bar standing at the four corners of the top plate by a connector, and a pin mounting base is provided on the upper end of the extension bar. The portable work bench according to any one of claims 1 to 3, wherein a rod mounting pin that protrudes upward is attached to the base.   A retaining claw is attached to the upper side of each rod mounting pin so that it is normally urged from the side of the pin by a spring and pressed against the spring so as to be immersed in the pin. The portable worktable in any one of 1-6.   At the upper side of each rod mounting pin, a retaining pin is normally tilted sideways so as to cross the rod mounting pin due to its own weight, and lifted at one end so that it fits within the diameter of the rod mounting pin. The portable work bench according to any one of claims 1 to 6.