JP4411609B2 - Stay axle support structure for transport cart - Google Patents

Description

  The present invention relates to a stay shaft support structure that is detachably mounted between front side edges of left and right side panels in a transport cart.

The stay that is detachably mounted between the front side edges of the left and right side panels in the transporting carriage, as disclosed in Patent Document 1, has a shaft support end that is supported by a front side column material of one side panel. The stay staying on the other side panel during loading and unloading work is supported on the front side of the side panel on the side supporting the stay. It will be in the state which hangs down from the said bearing means with gravity along a support | pillar material. At this time, if the stay and the front side support material of the side panel supporting the stay are in contact with each other, the stay may be caused by vibration when the stay is removed or when the carriage is moved in that state. And the front side strut material of the side panel come into contact and generate noise. In order to solve such problems, conventionally, as described in Patent Document 1, the stay directly contacts the front side strut material of the side panel that supports the stay. Attempts have been made to install cushioning materials that prevent contact.
JP 2001-213324 A

  However, in the solution means for mounting the cushioning material as described in Patent Document 1 to the front side column material of the side panel, the cushioning material as a separate part and the trouble of attaching this to the front side column material of the side panel are required. Necessary and unavoidably costly. In addition, the cushioning material attached to the front side strut material of the side panel is conspicuous in terms of the appearance of the transportation carriage, and the design is inferior.

The present invention aims to provide a stay shaft support structure for a transport carriage that can solve the above-mentioned conventional problems, and means for attaching the reference numerals of the embodiments described later. As shown, it is a shaft support structure of a stay 7 detachably mounted between the front side edges of the left and right side panels 3, 4 in the transport carriage 1, and is attached to the front side column material 3 a of one side panel 3. The stay 7 that is detached from the other side panel 4 and hangs down on the bearing means 8 on which the shaft support end portion 7a of the stay 7 is pivotally supported so as to swing up and down at a position where it does not come into contact with the front side support member 3a. In the stay shaft support structure of the transport carriage provided with the stay receiving portion 13 to be received , the bearing means 8 includes the shaft support end portion of the stay from both ends of the cross-sectional C-shaped portion 14 that is externally fitted to the front side support column 3a. A pair of bearings that support the bearing 7a. A main body 11 in which plate portions 15a and 15b are continuously provided; and a synthetic resin tubular body 10 interposed between the cross-sectional C-shaped portion 14 of the main body 11 and the front side support member 3a. The stay receiving portion 13 is configured to protrude from the synthetic resin tubular body 10 .

For carrying out the present invention configured as described above, in particular as claimed in claim 2, before Symbol stay receiving portion 13, a pair of bearing plate part 15a of the body 11, to be placed between 15b it can.

The invention according to claim 3 is a shaft support structure of the stay 7 that is detachably mounted between the front side sides of the left and right side panels 3 and 4 in the carriage 1, A stay 7 that is detached from the other side panel 4 and suspended from the other side panel 4 is attached to a bearing means 8 that is attached to the front side strut member 3a and is pivotally supported so that the shaft support end portion 7a of the stay 7 can swing up and down. In a stay shaft support structure of a transport carriage provided with a stay receiving portion 13 that is received at a position where it does not contact the material 3a, the bearing means 8 has a cross-sectional C-shaped portion 14 that is externally fitted to the front side support column material 3a. a pair of bearing plate part 15a for rotatably supporting sandwich from both ends between the shaft supporting end portion 7a of the stay 7, e Bei body 11 provided continuously to 15b, both bearing plate part 15a of the body 11, the 15b Is connected inward from the upper and lower sides of the base. Is the inward projection piece 17A～18b tip each other are brought in contact with each other are provided, of the inward projection piece 17A～18b, the stay received form the lower inwardly projecting pieces 18a, and 18b to the wide width This is a configuration in which the portion 13 is also used. When the invention according to claim 3 is carried out , the bearing means 8 has a synthetic resin cylindrical shape interposed between the cross-sectional C-shaped portion 14 of the main body 11 and the front side support member 3a. The body 10 can also be combined.

  According to the stay pivotal support structure of the transportation carriage according to the present invention having the above-described configuration, the stay side that is removed by the stay receiving portion provided in the bearing means for pivotally supporting the stay is supported on the front side column of the side panel that pivotally supports the stay. It is possible to prevent noise from coming into direct contact with the material. In addition, a stay receiving portion corresponding to a conventional cushioning material is provided in a part of the bearing means of the stay, and the parts cost and assembly cost can be reduced as compared with the case where a cushioning material independent from the bearing means is provided. Can do. Moreover, there is no possibility of impairing the design as in the case where the cushioning material is independently attached.

It should be noted that the bearing means of the stay is connected to a pair of bearing plate parts that are pivotally supported from both ends of the C-shaped cross section that is externally fitted to the front side support member of the side panel with the shaft supporting end part of the stay interposed therebetween. (1) The main body is configured by including a main body provided and a cylindrical body made of synthetic resin interposed between the cross-sectional C-shaped portion of the main body and the front side support material. It can be constructed from a metal plate to increase the axial support strength of the stay. (2) The body of the metal bearing means is prevented from coming into direct contact with the front side strut material of the side panel mainly composed of the metal pipe material by the synthetic resin cylindrical body in the middle, and the bearing means It is possible to stably attach the main body of the side panel without any backlash and to prevent the front side strut material surface of the side panel from being damaged. (3) When the bearing means is configured to be rotatable around the front side support member of the side panel, the rotation of the bearing means is facilitated by the synthetic resin cylindrical body existing between the support member, and Generation of noise and damage to the surface of the support material can also be suppressed. In particular, according to the configuration of the present invention described in claim 1, since the stay receiving portion can be integrally formed during shaping of the synthetic resin tubular body, Not only can it be implemented at a lower cost than the case where the stay receiving part is integrally formed on the main body composed of a plate, but a cushioning effect can be obtained when receiving a stay that swings due to vibration as a stay receiving part made of synthetic resin. In addition, the effect of preventing noise generation is enhanced. Furthermore, according to the configuration of the second aspect , although the stay receiving portion can be reduced to reduce the cost, the stay receiving portion can be reliably held at the stay receiving position, The stay receiving portion can be made difficult to break, and the intended purpose can be reliably achieved.

Further, a pair of bearing plates that pivotally support the main body of the bearing means, i.e., both ends of the cross-sectional C-shaped portion that is externally fitted to the front side strut member of the side panel, with the shaft supporting end portion of the stay interposed therebetween. For the pair of bearings in the body of the bearing means, by providing inwardly projecting pieces that are inwardly connected from both the upper and lower sides of the base portion and in which the tips abut against each other, are provided on both bearing plate portions of the main body The strength of the plate portion is increased, or the pair of bearing plate portions hang downward, and the inner side of the lower inward projecting piece is the surface of the front side strut member of the side panel (the synthetic resin cylindrical body When used together, it can be prevented by abutting against the surface of the synthetic resin cylindrical body), or the tightening allowance of the stay support bolts and nuts constituting the bearing means can be adjusted between the tips of the upper and lower inwardly protruding pieces. It becomes possible to restrict by contact of In this case, according to the configuration of the invention as set forth in claim 3, it is possible to alternate the stay receptacle with slightly widening the width of the lower inward projection piece, carried out very easily easily present invention can do.

  A specific embodiment of the present invention will be described below with reference to the accompanying drawings. A transport cart 1 shown in FIG. 1A includes a load support base 2 and left and right sides erected from both left and right sides of the load support base 2. Panels 3, 4, back panel 5 erected from the rear side of the load support base 2, moving wheels 6 disposed below the four corners of the load support base 2, and front sides of the left and right side panels 3, 4 The stay 7 is constructed so as to be freely detachable between the support members 3a and 4a. As is well known in the art, in this type of carriage 1, the load support base 2 is configured to be foldable so as to overlap the back panel 5, and one of the left and right side panels 3, 4. 4 is configured to be foldable so as to overlap the inside of the back panel 5. Accordingly, when the transport carriage 1 is not used, the load support base 2 is folded so as to stand up along the inside of the back panel 5, and the folded load support base 2 is sandwiched between the back panel 5. By folding the side panel 4, the entire transport carriage 1 can be folded into an L shape in plan view.

  The stay 7 is pivotally supported by a front side column member 3a of the side panel 3 on the side where one end (shaft support end) is not folded via a bearing means 8 so as to be swingable up and down, and the other end (free end portion). ) Is detachably locked to a locking member 9 attached to the front side column member 4a of the side panel 4 on the side of the side panel 4 to be folded, and is used for loading and unloading loads or as described above. Is folded from the bearing means 8 by removing the free end from the receiving member 9.

  Hereinafter, a specific structure of the bearing means 8 of the stay 7 will be described. As shown in FIGS. 1B to 4, the bearing means 8 includes a cylindrical body 10 made of synthetic resin, and a main body formed by pressing a metal plate. 11 and a spindle bolt 12a and a nut 12b. As shown in FIG. 5, the cylindrical body 10 has a cylindrical shape having a dividing portion 10a along the axial direction at one place in the circumferential direction, and has a circumferential end of approximately 180 on the dividing portion 10a side at the lower end. A notch 10b is formed by cutting out the region of the degree, and flanges 10c and 10d projecting outward are formed at both peripheral edges in the axial direction excluding the notch 10b. In the vicinity of the lower end, the stay receiving portion 13 is protruded by integral molding from the peripheral surface opposite to the side where the dividing portion 10a is located.

  As shown in FIG. 6, the main body 11 includes a cross-sectional C-shaped portion 14 that can be fitted between the upper and lower flange portions 10 c and 10 d of the cylindrical body 10, and both sides of the cross-sectional C-shaped portion 14. A pair of bearing plate portions 15a and 15b extending substantially in parallel from the side are provided, and support shaft holes 16 are provided concentrically with each other at positions near the tips of the pair of bearing plate portions 15a and 15b. In addition, inwardly bent pieces 17a, 17b and 18a, 18b that are in contact with each other from the top and bottom (both ends in the axial direction) sides of the base portions of the pair of bearing plate portions 15a, 15b are connected. A concave groove 19 is formed along the axial direction at the opposite side of the inner side surface of the C-shaped portion 14 on the side where the bearing plate portions 15a and 15b extend, and the lower end of the C-shaped portion 14 has a lower end. A notch portion 14a is formed by cutting out a region of approximately 180 degrees in the circumferential direction on the concave groove 19 side. Further, the portions 20a and 20b where the inwardly bent pieces 18a and 18b are continuously provided at the lower ends of the pair of bearing plate portions 15a and 15b are formed so as to protrude downward with a narrower interval. .

  The mounting method of the bearing means 8 having the above configuration will be described. Among the plurality of upper and lower horizontal bars constituting the side panel 3, the front side column material above the horizontal bar 21 positioned at the mounting height of the bearing means 8 is described. The tubular body 10 is externally fitted to 3a in a state where the tubular body 10 is opened to the left and right at the dividing portion 10a. The body 11 is externally fitted between the pair of bearing plate portions 15a and 15b in a state where the main body 11 is opened to the left and right using the concave groove 19 therebetween. At this time, the main body 11 is oriented so that the divided portion 10a of the cylindrical body 10 is located inside the concave groove 19 and the positions of the notches 10b and 14a coincide with each other. By doing so, the stay receiving portion 13 of the cylindrical body 10 is adjacent to the upper side of the lower inward protruding pieces 18a, 18b of the main body 11, and the lower end protruding portions 20a, 20b of the pair of bearing plate portions 15a, 15b. It is sandwiched between them and is held in a state of slightly protruding forward from between the lower end protruding portions 20a and 20b. In such a state, the cylindrical body 10 and the main body 11 are integrally lowered along the front side support material 3 a of the side panel 3, and the notches 10 b and 14 a of both are placed on the horizontal bar material 21.

  A shaft support end portion 7a formed by crushing one end of a stay 7 using a round steel pipe into an oval shape is fitted between a pair of bearing plate portions 15a and 15b of the main body 11, and penetrates the shaft support end portion 7a. In this manner, the bolt 12a is inserted into the support hole 16 of the pair of bearing plates 15a and 15b, and the nut 12b is screwed and fastened to the bolt nut 2a, so that the support end 7a of the stay 7 is supported by the bearing means 8. The main body 11 is pivotally supported so as to swing up and down. The pair of bearing plates 15a and 15b approach each other by fastening the nut 12b, and the tips of the upper and lower inwardly projecting pieces 17a and 17b and 18a and 18b come into contact with each other. Of course, the nut 12b is tightened so that the shaft support end portion 7a of the stay 7 is not sandwiched between the pair of bearing plate portions 15a and 15b and the stay 7 cannot swing up and down around the bolt 12a. The bill is limited.

  As described above, the stay 7 in which the shaft support end portion 7a is pivotally supported by the bearing means 8 has one vertical side in the circumferential direction of the notches 10b and 14a of both the cylindrical body 10 and the main body 11 being horizontal of the side panel 3. By abutting against the crosspiece 21, it can be swung up and down around the bolt 12 a that is a support shaft at a position directly inside the front side post 3 a of the side panel 3, and at the same time, the notch 10 b, It can be rotated around the front side column member 3 a of the side panel 3 together with the bearing means 8 within a range until the other vertical side of the circumferential direction 14 a contacts the horizontal crosspiece 21 of the side panel 3.

  Therefore, when the stay 7 is installed horizontally with the side panel 4, the vertical swinging around the bolt 12a as the support shaft and the bearing means 8 around the front side column member 3a of the side panel 3 are supported. The free end portion 7c of the stay 7 may be engaged downwardly with the locking member 9 on the side panel 4 side by utilizing the integral rotation. When the stay 7 is in the way for loading and unloading work, etc., the loose end portion 7c of the stay 7 is removed from the locking member 9 on the side panel 4 in the reverse procedure to the above, and the front side of the side panel 3 is removed. What is necessary is just to make it the state which hangs down from the bearing means 8 along the side support | pillar material 3a, but as shown to FIG. 1B, FIG.3 and FIG.4 at this time, the peripheral surface in the part close | similar to the axial support end part 7a of the stay 7 ( 1b (one circumferential surface in the major axis direction of the intermediate portion that transitions from the elliptical portion in the cross section to the true circular portion) abuts against the distal end surface of the stay receiving portion 13 projecting from the cylindrical body 10 in the bearing means 8, and is shown in FIG. 1B. As described above, the entire portion including the free end portion 7 c of the stay 7 is held in a hanging posture away from the front side column member 3 a of the side panel 3. In other words, even when the stay 7 hangs around the bolt 12a as the support shaft due to vibration or the like in a state where the stay 7 hangs down from the bearing means 8 along the front side support member 3a of the side panel 3, the stay 7 There is no possibility that the contact with the front side support member 3a of the side panel 3 generates noise and the free end portion 7c of the stay 7 or the front side support member 3a of the side panel 3 is damaged.

  In the above configuration, the stay receiving portion 13 on the cylindrical body 10 side is sandwiched between the lower end protruding portions 20a and 20b of the pair of bearing plate portions 15a and 15b on the main body 11 side. When 8 is rotated around the front side support member 3a of the side panel 3, the cylindrical body 10 and the main body 11 are reliably rotated integrally, and the clamping force of the main body 11 against the cylindrical body 10 is weak, so that the cylinder Only the main body 11 does not rotate with respect to the body 10.

  Further, as shown in FIGS. 7 and 8, the stay receiving portion 13 does not protrude from the tubular body 10, and the lower inwardly protruding pieces 18a and 18b of the pair of bearing plate portions 15a and 15b in the main body 11 are provided. The outer side 22 of the lower inwardly projecting pieces 18a and 18b is widened outwardly, like the stay receiving portion 13 in the above-described embodiment, along the front side column material 3a of the side panel 3, and bearing means. A stay receiving portion that receives the stay 7 that hangs down from the position 8 at a position that does not contact the front side strut material 3a may be used. Of course, since the cylindrical body 10 is not an essential requirement in the present invention, the stay receiving portions (the outer side edges 22 of the lower inwardly projecting pieces 18a and 18b are provided on the main body 11 as in the embodiment shown in FIGS. 9) and FIG. 10 with respect to the bearing means 8 having a structure in which the main body 11 is directly attached to the front side column member 3a of the side panel 3 without using the cylindrical body 10 as shown in FIGS. Also, the present invention can be implemented.

Fig. A is a perspective view showing the entire transport carriage, and Fig. B is a partially longitudinal front view showing a stay shaft support structure according to an embodiment of the present invention. It is a position part vertical section side view of Drawing 1B. It is a top view of FIG. 1B. It is a bottom view of FIG. 1B. Fig. A is a side view showing the cylindrical body of the bearing means, and Fig. B is a partial transverse plan view of the cylindrical body. Fig. A is a side view showing the main body of the bearing means, and Fig. B is a partial cross-sectional plan view of the main body. It is a partial vertical front view of the principal part which shows 2nd embodiment. FIG. 8 is a bottom view of FIG. 7. It is a partial longitudinal cross-sectional front view of the principal part which shows 3rd embodiment. FIG. 10 is a bottom view of FIG. 9.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Carriage for transport 2 Load support bases 3, 4 Left and right both-side panels 5 Back panel 7 Stay 7a Stay support end 8 Bearing means 9 Locking member 10 Synthetic resin cylindrical body 11 Main body 12a Support shaft bolt 12b Nut 13 Stay receiving portion 14 Cross section C-shaped portions 15a, 15b A pair of bearing plate portions 16 Support shaft holes 17a-18b Inwardly bent piece 21 Horizontal crosspiece

Claims (3)

This is a stay support structure that is detachably mounted between the front sides of the left and right side panels of the transport carriage, and is attached to the front side support material of one side panel so that the support end of the stay swings up and down. A stay support structure for a carriage for transportation , wherein the support means is provided with a stay receiving portion for receiving a stay that is suspended from the other side panel at a position where it does not come into contact with the front side strut material. In
The bearing means includes a main body in which a pair of bearing plate portions that are pivotally supported with both ends of the C-shaped portion of the cross section being fitted to the front side strut member sandwiching the shaft supporting end portions of the stay in between. A synthetic resin cylindrical body interposed between the cross-sectional C-shaped portion of the main body and the front side support material, and the stay receiving portion protrudes from the synthetic resin cylindrical body. The structure of the stay axle of the transport cart. The stay shaft support structure for a transport carriage according to claim 1, wherein the stay receiving portion is disposed between a pair of bearing plate portions of a body of the bearing means . This is a stay support structure that is detachably mounted between the front sides of the left and right side panels of the transport carriage, and is attached to the front side support material of one side panel so that the support end of the stay swings up and down. A stay support structure for a carriage for transportation, wherein the support means is provided with a stay receiving portion for receiving a stay that is suspended from the other side panel at a position where it does not come into contact with the front side strut material. In
The bearing means includes a main body provided with a pair of bearing plate portions that are supported from both ends of a C-shaped cross section that is externally fitted to the front side strut material with the shaft supporting end portion of the stay interposed therebetween, Both the bearing plate parts of the main body are provided with inwardly projecting pieces that are inwardly connected from the upper and lower sides of the base part and the tips are in contact with each other. the inward projection piece formed in wide width is made to serves the stay receptacle, stay pivotally supported structure luck搬用truck.