JP2019077268A - Side cart - Google Patents

Abstract

To provide a side cart, such as a shopping cart, used by a pushing operation on the side of the body, capable of facilitating setting and changing of a right-hand operation form and a left-hand operation form.SOLUTION: A shopping cart 11 having a handlebar column 13 with a handlebar 15 on its top end, on one side of a base 12 in the horizontal direction, provided so that a front wheel 23a and a rear wheel 23b are not detachable, is formed with a handlebar column fixing part 14 detachably fixing a lower end part of the handlebar column 13 on both side parts of the base 12 in the horizontal direction, thereby making the handlebar column 13 standing on either one of left and right sides of the base 12.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a side cart for pushing sideways of the body, such as a shopping cart, which can be used as a cane by an old man or the like.

  Since the side cart is used by pushing beside the body, there are a person with the right hand and a person with the left hand. For this reason, as disclosed in, for example, Patent Document 1 below, there is one configured to be able to cope with any of them.

  The shopping cart of Patent Document 1 has a base main body whose traveling direction changes in accordance with the standing position of the user, a grip portion attached to the standing position side of the user with respect to the traveling direction, and It has a front wheel unit mounted on the front side and a rear wheel unit mounted on the rear side in the direction of travel. The setting of the right-hand operation mode and the left-hand operation mode switches the mounting direction of the handle portion, and also replaces the front wheel unit and the rear wheel unit.

  However, switching between the right-handed operation mode and the left-handed operation mode is not easy, and it is difficult for the user and persons around the company to do it.

Patent No. 5568544 gazette

  The main object of the present invention is to enable easy setting and change of the right hand operation mode and the left hand operation mode.

  The means for that purpose is a side cart having a handlebar post having a handle at its upper end on one side in the left-right direction of the base, wherein the base and the handlebar post are defined forward in the traveling direction It is a side cart in which the handle | pillar support | pillar fixing | fixed part which detachably fixes the lower end part of the said handle | steering-wheel support | pillar is formed in the left-right direction both sides of the said base.

  In this configuration, the lower end portion of the handle post is fixed to the handle post fixing portion on one of the left and right sides of the base, and the desired form is set or changed. Since the base and handle post are fixed forward in the direction of travel, it is only necessary to consider the position of the handle post, that is, whether it is right or left, and it is not necessary to set or change other points. It is.

  According to the present invention, the right hand operation mode and the left hand operation mode can be easily set or changed.

The perspective view which shows the main-body part of a shopping cart. Rear view of shopping cart seen from behind. Side view of a shopping cart. The partial cross section side view of the separated state of the lower end part of a handle | steering-wheel support pillar and a base. The perspective view of a transmission part. The front view of the separated state of a driven member and a transmission part. The bottom view of a stop axis part and a stop axis fixed hole.

  One embodiment for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing the main body portion of the shopping cart 11 as a side cart, and this shopping cart 11 is set or changed when holding it with the right hand and using it with the left hand Can do that (see Figure 2). The solid lines in FIGS. 1 and 2 show the shopping cart 11 operated by the right hand. In FIG. 1, the one drawn by a virtual line is a storage container A mounted on the main body portion. The storage container A is not only a bag that is appropriately formed and made of a deformable material, but may be a rigid one.

  The shopping cart 11 has a handle column 13 on one side of the base 12 in the left-right direction, and the base 12 and the handle column 13 define the front as the traveling direction, and the base 12 On both side portions in the left-right direction of the front wheel, a handle post fixing portion 14 for detachably fixing the lower end portion of the handle post 13 is formed. The handle post 13 has a handle 15 at its upper end, and the handle 15 is supported by two posts 16 spaced apart in the front-rear direction.

  Further, neutral support posts 17 extending upward are provided at middle positions in the left-right direction of the base 12, in other words neutral positions, at the front and rear ends of the base 12, and the upper end of the neutral support 17 and the handle support 13 are arms. It is connected by a section 18. Since the distance between the two neutral support columns 17 is longer than the length of the handle support column 13 in the front-rear direction, the arm section 18 is formed in an L shape in plan view in order to mount the storage container A described above. The heights of the neutral support 17 and the support 16 are approximately the same, and the arm 18 is horizontal or substantially horizontal when used.

  The arm portion 18 connecting the upper end of the neutral support post 17 and the handle support post 13 is provided with pivoting parts 21 and 22 at both ends. Since the arm portion 18 is L-shaped in plan view, the pivoting portion 21 connected to the neutral support post 17 in the arm portion 18 is a direction orthogonal to the longitudinal direction of the neutral support post 17 and the arm portion 18 and the front and rear of the base 12 The arm 18 is pivoted in the left-right direction of the base 12 with an axis extending in the direction. On the other hand, the pivoting portion 22 connected to the handle post 13 in the arm portion 18 has an axis extending in the front-rear direction of the base 12 and is rotated around the axis of the arm portion 18. It can move to both sides in the left-right direction of the base 12 in accordance with the position of the handle post 13.

  The base 12 has a plate shape formed in a rectangular shape in plan view, and a peripheral wall 12 a is formed on the outer peripheral edge. Further, the base 12 has the longitudinal direction as the front-rear direction, and the front as the traveling direction is defined as described above. Defining the forward direction as the traveling direction naturally also defines the rear. In addition, "Additionally," the forward direction as the traveling direction is defined "means that the front and the back are fixed and it is impossible to switch the back and forth.

  Although the base 12 having directionality may be able to distinguish between front and back depending on the plan view shape etc., the shopping cart 11 in this example can be used as a cane instead, and the wheels 23 with different functions are back and forth. The front and back are defined by being fixed to. That is, it has two front wheels 23a on the left and right in front of the lower surface of the base 12 (right side in FIG. 1) and two rear wheels 23b on the left and right in rear (left side in FIG. 1). ing. The front wheel 23a is swingable, and a main part of a swing control means 25 for restricting the swing motion of the front wheel 23a is provided in the vicinity of the front wheel 23a. The rear wheel 23b can not swing and, in the vicinity of the rear wheel 23b, a main part of the rotation restricting means 27 for restricting the rotational movement of the rear wheel 23b is provided. The swing control means 25 and the rotation control means 27 described above are the control means for restricting the operation of the wheel 23 in the present invention.

  The handle support post 13 has, at its lower side, the aforementioned two support posts 16 (front support post 16a and rear support post 16b) spaced apart longitudinally, a connecting rod 31 for connecting the lower end portions of these support posts 16 back and forth, and connecting rod A locking shaft 32 is provided on the base 31, and is locked to the base 12 to prevent it from coming off. The lower end of the column 16 is inserted into the base 12, and the locking shaft 32 is also inserted into the base 12. More specifically, the lower end of the support 16 and the locking shaft 32 are both fixed through the base 12. For this reason, the above-mentioned handle post fixing part 14 will be constituted by three through holes.

  The handle 15 at the upper end of the handle post 13 is a rectangular frame shaped in an upright position, and includes a grip 15a extending in the front-rear direction, a front hanging portion 15b hanging from the front end of the grip 15a, and a rear end of the grip 15a And a connecting portion 15d that connects the lower ends of the front side hanging portion 15b and the rear side hanging portion 15c to the front and rear.

  A swing lock lever 33 is attached to the front side hanging portion 15b. The swing lock lever 33 constitutes a part of the above-mentioned swing restricting means 25 and is rotatably mounted, and a wire 34 is provided at a portion that fits within the handle 15 of the swing lock lever 33. It is connected (see FIG. 4). The wire 34 extends down the interior of the hollow front strut 16a.

  Further, a brake lever 35 extending toward the rear side hanging portion 15c below the grip portion 15a is pivotally attached to the front side hanging portion 15b. The brake lever 35 constitutes a part of the rotation restricting means 27 described above, and is formed at a position where it can be pulled up with a fingertip while holding the grip portion 15a. The rear end of the brake lever 35 is located inside the rear depending portion 15c, and the wire 36 is connected. The wire 36 extends down the interior of the hollow rear strut 16b.

  As described above, the handlebar post 13 differs in shape from front to back, and from the position of the swing lock lever 33 and the direction of the brake lever 35, the front as the traveling direction is defined.

  Here, the swing control means 25 and the rotation control means 27 will be described.

  The swing control means 25 is, as shown in FIG. 3, an upwardly convex control shaft 41 formed on the rear side of the rotating neck of the front wheel 23a, and a position and a position at which the control shaft 41 is restrained. The lock member 42 is pivoted in the vertical direction to the release position, the swing lock lever 33 described above, the wire 34 described above, and a driven member 43 connected to the lower end of the wire 34.

  The restricting shaft 41 is formed above the position directly behind the front wheel 23a, and is configured to be able to restrict oscillation when the front wheel 23a is directed straight in the traveling direction. The restraint fitting 42 is pivoted by the pivot shaft 42a at a position rearward of the front wheel 23a below the base 12 by a pivot shaft 42a, and is bifurcated fork-shaped to fit on the restricting shaft 41 when pivoted downward to the front wheel 23a side. Control claw 42b. A transmission portion 42c for driving the swing control means 25 is formed on the rear side of the pivot shaft 42a of the restraint fitting 42. The transmission part 42c is comprised by the axis | shaft which protrudes to the left-right direction outward.

  As shown in FIG. 3, the rotation restricting means 27 is pivotally attached to the rear wheel 23b and pivots in the vertical direction, the brake metal fitting 44, the aforementioned brake lever 35, the aforementioned wire 36 and the lower end of the wire 36 And a driven member 43 connected to the

  The brake metal fitting 44 is formed by bending a narrow metal plate into a crank shape, and a contact piece 44a that contacts the rear wheel 23b to stop the rotation of the rear wheel 23b is positioned behind the rear wheel 23b. A transmission portion 44c for driving the rotation restricting means 27 is formed in front of the pivoting shaft 44b of the brake metal fitting 44. The transmission part 44c is comprised by the axis | shaft which protrudes to the left-right direction outward.

  Since the swing restricting means 25 and the rotation restricting means 27 are provided on the left and right sides, the above-mentioned pivot shafts 42a and 44b are formed long in the left and right direction, and the left and right swing restricting means 25 and the left and right rotation restricting means 27 Each work in unison.

  The driven member 43 is provided at the lower end of the support column 16, penetrates under the base 12, and moves up and down by the operation of the handle 15, that is, the operation of the swing lock lever 33 and the brake lever 35. The driven member 43 is connected to the above-described oscillation restricting means 25 as the restricting means for restricting the operation of the wheel 23 provided under the base 12 and the transmission parts 42 c and 44 c for driving the rotation restricting means 27. It is done.

  Specifically, as shown in FIG. 4, the driven member 43 is attached to the lower end portion of the support 16 via the auxiliary fitting 45. That is, at the lower end of the support 16, the aforementioned auxiliary metal fitting 45, which is substantially cylindrical when combined, is fixed by the pin 46 penetrating the support 16. At the upper end portion of the auxiliary fitting 45, an insertion hole 45a for inserting the wires 34 and 36 is formed.

  The upper end portion of the driven member 43 has a cylindrical shape slidably fitted inside the auxiliary fitting 45, and a connection recess 43a for connecting the lower ends of the wires 34 and 36 is formed at the upper end. Below the connection recess 43a, a through hole 43b is formed through which a pin 46 for connecting the support 16 and the auxiliary fitting 45 is inserted. The through hole 43 b is vertically elongated relative to the pin 46 so as to be relatively movable in the vertical direction.

  The lower end portion of the driven member 43 has a hole 43 c into which the above-described transmission portions 42 c and 44 c are inserted. The hole 43c is an elongated hole which is long in the front-rear direction of the base 12 in the lateral direction, and an inclined surface 43d is formed on the lower side of the hole c43 to have a smaller thickness toward the lower side ( See Figure 6).

  The driven member 43 is also biased downward by a compression coil spring 47 built in between the auxiliary fitting 45.

  As shown in FIG. 5, the transmission portions 42 c and 44 c are formed so as to protrude and retract at both ends of the shaft portion 51 which is laterally extended and displaceably supported below the base 12. That is, the space 51a is formed at both ends of the shaft 51, and the movable transmission member 52 is inserted into the space 51a. The transmission member 52 has a large diameter portion 52a and a small diameter portion 52b. The large diameter portion 52a is accommodated in the space portion 51a, and is urged in the projecting direction by the compression coil spring 53 provided in the space portion 51a. The small diameter portion 52b functions as the transmission portions 42c and 44c.

  Holding of the transmission member 52 is performed by the operation pin 54 inserted and held from the outer periphery of the shaft portion 51, and the operation pin 54 moves in a moving groove 55 formed in the shaft portion 51. The moving groove 55 has an axial groove 55a extending in the longitudinal direction of the shaft portion 51, and a circumferential groove 55b extending in the circumferential direction from an end on the base side of the axial groove 55a.

  The axial groove 55a has a length which can avoid interference with the driven member 43 at the lower end of the support 16 as shown in FIG. 6 when the lower end of the support 16 is inserted into the handle support fixing portion 14. is there. When the operation pin 54 is pinched and retracted toward the circumferential groove 55b against the biasing force and moved toward the end of the circumferential groove 55b, the state in which the transmission portions 42c and 44c are retracted can be maintained.

  The locking shaft 32 provided between the two support columns 16 constituting the handle support column 13 is rotatably mounted around the axis as shown in FIG. 4 and has an outer peripheral surface at the lower end of the shaft section 32a. And two diametrically opposed locking projections 32b that project from the shaft (see FIG. 7). A rotation knob 32c is provided at the upper end, and when the rotation knob 32c is rotated in the left-right direction, the direction of the locking projection 32b can be switched between an attitude facing in the front-rear direction of the base 12 and an attitude facing in the left-right direction. The direction in which the locking projection 32b extends and the direction in which the rotary knob extends differ by 90 degrees.

  Of the handle support fixing portion 14 for detachably fixing the lower end portion of the handle support 13, the support fixing hole 14a for fixing the support 16 is a through hole as shown in FIG. 4 and the lower end of the support fixing hole 14a In the portion, a step-like receiving portion 61 is formed which receives the lower end of the support 16, that is, the lower end position excluding the driven member 43. The locking shaft fixing hole 14b for fixing the locking shaft 32 is also constituted by a through hole, and since the shaft portion 32a of the locking shaft 32 has the locking protrusion 32b, the locking protrusion 32b When viewed in the front-rear direction of the base 12 (see FIG. 7).

  The depth of the locking shaft fixing hole 14b is a depth at which the locking projection 32b of the locking shaft 32 protrudes downward when the handle post 13 is inserted from above into the handle post fixing portion 14 and fixed. At the outer peripheral position (lower end outer peripheral surface 62) at the lower end of the shaft fixing hole 14b, the locking shaft 32 is rotated and the locking projection 32b is rotated 90 degrees from the posture facing the back and forth direction of the base 12 and turned horizontally. A cam surface 62a is drawn to attract the locking shaft 32 when in the posture, and a concave surface 62b is formed as a moderation to stabilize the holding state of the locking projection 32b.

  The shopping cart 11 configured as described above is used by setting the position of the handle 15 on the base 12 depending on which hand the user holds with the left hand and the right hand. Also, the position of the handle 15 is changed when necessary, such as when there is a change after setting and when there is a loan.

  To set or change the position of the handle 15, the lower end of the handle post 13 is removed from the base 12, and the lower end of the handle post 13 is fixed to any desired left or right handle support fixing portion 14. When the lower end portion of the handlebar support 13 is removed from the handlebar support fixing portion 14, it is rotated in the left-right direction with the rotation knob 32c of the locking shaft 32, and the entire handlebar support 13 is pulled upward. At this time, the transmission parts 42c and 44c which the driven member 43 at the lower end of the handlebar post 13 is locked are temporarily retracted.

  Since the transmission portions 42c and 44c can be freely retracted and retracted and can be maintained in the retracted state by positioning the operation pin 54 in the circumferential groove 55b, workability is good. On the other hand, since the transmission parts 42c and 44c are biased in the projecting direction, the power can be reliably transmitted.

  When fixing the lower end portion of the handlebar support 13 to the handlebar support fixing portion 14, after rotating the rotation knob 32c so that the locking projection 32b of the locking shaft 32 faces the back and forth direction of the base 12, The locking shaft 32 and the support 16 are inserted toward the fixing portion 14. At this time, when the driven member 43 at the lower end portion of the handlebar support 13 interferes with the transmission portions 42c and 44c, the transmission portions 42c and 44c are temporarily retracted. After the insertion, the locking shaft 32 is rotated to lock the locking projection 32 b to the lower surface of the base 12, specifically to the lower end outer peripheral surface 62.

  In this way, the position of the handle 15 is set or changed, and the base 12 and the handle post 13 are fixed to the front, which is the direction of movement. It is sufficient to consider only the left or the left. That is, since setting and changing of other parts, such as arrangement of the wheel 23, is unnecessary, setting and changing of the right-hand operation form and the left-hand operation form can be easily performed.

  Moreover, the handle support fixing portion 14 for fixing the lower end portion of the handle support 13 is constituted by a hole, specifically a through hole, and the fixed state is obtained by rotating the locking shaft 32 inserted similarly to the support 16. Work is easy because it is held.

  As a result, no special tools or skills are required for setting or changing the shopping cart 11. For example, at the time of sale or loan at a store, or at home, etc., it is easy to make it an aspect suited to the user. Can.

  Further, since the base 12 is provided with the neutral support column 17 and the arm section 18 connecting the neutral support column 17 to the handle support column 13 via the pivoting parts 21 and 22, setting of the handle 15 position It is not necessary to completely separate the handlebar post 13 from the base 12 upon modification. Moreover, since the handlebar post 13 is restricted to a predetermined posture by the pivoting of the pivoting parts 21 and 22, the work for setting and changing can be performed extremely easily and quickly.

  In addition to the two support columns 16, the handle support column 13 is provided with a connecting rod 31 for connecting the lower ends of the support columns 16. Therefore, combined with the provision of the neutral support column 17, the load can be dispersed to obtain strength. Can.

  Moreover, since the locking shaft 32 is provided in the connecting rod 31, the fixed state can be held by one locking shaft 32, and the operability is good.

  In addition, since the connecting rod 31 is provided with the locking shaft 32, the support 16 is provided with a structure for driving the restricting means (the swing restricting means 25 and the rotation restricting means 27) for restricting the operation of the wheel 23. And the device can be compacted as a whole.

  Further, the lower end portion of the support 16 is provided with the driven member 43, and the transmission parts 42c and 44c connected to the driven member 43 when the handle support 13 is fixed are provided. Since there is no member connected at the time of separation from the other and no other work is required, the work of setting and changing is easy from this point as well. Moreover, power transmission for regulation can be performed reliably.

  The above configuration is one mode for carrying out the present invention, and the present invention is not limited to the above configuration, and other configurations can be adopted.

  For example, the side cart may not be the shopping cart 11 as described above, but may be something other mainly for walking assistance.

  The lower end of the handle post 13 may be configured to be detachably fixed without penetrating the base 12 up and down.

  The locking shaft 32 may be provided not only one as described above but also in plurality. Further, the portion where the locking shaft 32 locks may be the upper surface or the inner as well as the lower surface of the base 12 as described above.

  The neutral support 17 can also be omitted.

  Furthermore, the structure of the restricting means (specific structure for restricting) and the aspect of restricting (what to restrict the wheels 23) can be appropriately designed as needed.

11 shopping cart 12 base 13 handle post 14 handle post fixed part 15 handle 16 post 17 neutral post 18 arm part 21,22 pivot part 23 wheel 23a front wheel 23b rear wheel 25 ... Swing regulation means 27 ... Rotation regulation means 31 ... Coupling rod 32 ... Locking shaft 33 ... Swing lock lever 35 ... Brake lever 43 ... Driven member 42 c, 44 c ... Transmission part

Claims (5)

A side cart having a handle post having a handle at its upper end on one side in the left-right direction of the base,
The base and the handlebar post are defined to be forward in the traveling direction,
A side cart having a handle post fixing portion formed on both sides in the left and right direction of the base for detachably fixing a lower end portion of the handle support. A neutral support post is provided at an intermediate position in the left-right direction of the base, and at the front and rear ends of the base, extending upward,
At the upper end of the neutral support, an arm connected to the handle support is formed via a pivot.
The side cart according to claim 1, wherein the arm portion is movable to both sides in the left-right direction of the base in accordance with the position of the handle post. On the lower side of the handle post, two posts spaced apart in the front and rear direction and inserted into the base, a connecting rod connecting the lower ends of the posts back and forth, and a connecting rod provided on the base The side cart according to claim 1 or 2, further comprising a locking shaft that stops and stops. The lower end portion of the support is provided with a driven member which penetrates under the base and is moved up and down by the operation of the handle.
The side cart according to claim 3, wherein the driven member is connected to a transmission portion which rotates a restricting means which restricts the operation of a wheel provided under the base. The side cart according to claim 4, wherein the transmission unit is freely retractable.

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