JP2021086700A - Lead storage battery with handle - Google Patents

Abstract

To provide a lead storage battery in which a handle is manufactured while reducing a weight and suppressing cost even in a case where a mechanical strength is secured, work for mounting the handle to a lid is facilitated, and safety is also improved.SOLUTION: Insertion shafts 1a and 1b to which insertion holes 2a and 2b provided in both ends of a handle 2 are provided in a lid 1. The insertion shaft 1a has a shaft center in a direction in parallel with a surface of the lid 1 and is constituted of a hollow cylindrical wall which includes an opening end 1a1 opposed to the outside of the lid 1, and formed in a hollow cylindrical shape. The hollow cylindrical wall is divided into three notch pieces 1a31, 1a32 and 1a33 having a clearance 1a2 in a circumferential direction. A coming-off preventive part 1a4 protruding to the radial outside of the hollow cylindrical wall is formed in ends of the notch pieces 1a32 and 1a33 at the side of the opening end 1a1. The insertion hole 2a includes a projection 2c which is fitted to the clearance 1a2 in an inner periphery abutted to an outer periphery of the hollow cylindrical wall of the insertion shaft 1a.SELECTED DRAWING: Figure 6

Description

The present invention relates to a lead-acid battery with a handle provided with a handle for supporting the load of the lead-acid battery.

Conventionally, as a lead storage battery with a handle of this kind, for example, there is a lead storage battery disclosed in Patent Document 1. This lead-acid battery has a handle on the lid that engages with the lid at the hinge portion as a handle. The hinge portion of the carrier is formed with a shaft-shaped insertion portion and a tip portion that can be easily rotated. The engaging portion of the lid is formed with an insertion hole into which the insertion portion formed in the hinge portion is inserted and a groove portion below the insertion hole. When the carrier is raised, the tip enters the groove and is locked.

Further, conventionally, as a lead storage battery with a handle of this type, there is also a lead storage battery disclosed in Patent Document 2. This lead-acid battery has pins protruding inward at both ends of the handle, which is a handle. The lid is formed with a hole on the side surface of the high portion for inserting a pin. Further, the side surface of the pin is provided with a protrusion, and the hole is provided with a notch slightly larger than the protrusion. If the pin is inserted into the hole and the attached handle is rotated to stand upright, a phase difference is generated between the protrusion of the pin and the notch of the hole, and the handle cannot be removed from the hole.

Japanese Unexamined Patent Publication No. 2003-162988 Japanese Unexamined Patent Publication No. 61-250966

The handle of a lead-acid battery is required to be both easy to attach to the lid during assembly and difficult to remove from the lid during transportation. For this reason, in the above-mentioned conventional lead-acid batteries with handles, through holes such as insertion holes and holes are formed on the lid side, and shafts such as insertion portions and pins and retaining portions such as tip portions and protrusions are formed on the handle side. It has a structure. In the case of such a structure, in order to have sufficient mechanical strength around the through hole of the lid, the shaft of the handle, and the stopper to prevent the lead-acid battery from coming off so that the weight of the lead-acid battery can be withstood. It is necessary to reinforce by increasing the amount of resin.

However, increasing the amount of resin causes an increase in the weight and manufacturing cost of the lead-acid battery. Further, when the shaft having the above-mentioned retaining mechanism is formed on the handle, the handle has a thick and sturdy structure in which the amount of resin used is increased so that a large-weight lead-acid battery can be held and transported. Therefore, when the handle is attached to the lid, a large force is required to widen both ends of the handle, that is, a large load is required to insert the shaft of the handle into the through hole of the lid. As a result, not only the weight and manufacturing cost of the lead-acid battery are increased, but also the work of attaching the handle to the lid requires labor, and there is a risk that the operator may be injured when attaching the handle to the lid.

The present invention provides a lead-acid battery with a handle, which is lightweight and can be manufactured at a low cost even when mechanical strength is secured, and which is easy to attach to the lid of the handle and improves safety. The purpose is to do.

To this end, the present invention
It has a hollow cylindrical shape with an axial center parallel to the surface of the lid that closes the opening of the battery case and an opening end facing the outside of the lid, and has a gap in the circumferential direction to form a plurality of axial centers. A lid composed of a hollow cylindrical wall notched, and a retaining piece protruding outward in the radial direction of the hollow cylindrical wall is formed at an end of the notched pieces cut out in a plurality of hollow cylindrical walls on the opening end side. With the insertion shaft provided in
It has an insertion port at the end where the insertion shaft is inserted and fits into the insertion shaft, and the insertion port is inserted into the insertion shaft and the handle is lifted to suspend the insertion shaft and lead. A lead-acid battery with a handle was constructed with a handle that supports the load of the storage battery.

According to this configuration, the insertion shaft is formed on the lid side, and the insertion port through which the insertion shaft is inserted and fitted to the insertion shaft is formed on the handle side. Therefore, the amount of resin required for ensuring the mechanical strength of the handle can be reduced as compared with the conventional case where the through hole is formed on the lid side and the shaft is formed on the handle side. Therefore, the handle can be manufactured with light weight and low cost even when its mechanical strength is secured.

To attach the handle to the lid, insert the handle insertion port into the insertion shaft of the lid, and bend a plurality of notches formed on the insertion shaft toward the axis of the insertion shaft. Will be done. Therefore, the labor required for the operator for this insertion is a small force that widens the end where the insertion port of the handle with a small amount of resin is formed, and the notch piece is flexed toward the axis of the insertion shaft. It only requires a small amount of power. That is, when the handle is attached to the lid, the force required to insert the insertion port into the insertion shaft can be small. For this reason, the work of attaching the handle to the lid can be performed without labor even by a weak worker, and the assembly becomes easy, and there is no risk of the worker being injured when attaching the handle to the lid. It also improves the safety of installation work.

Further, in the present invention, the handle is fitted in the gap on the inner circumference of the insertion port that abuts on the outer circumference of the hollow cylindrical wall, and when the handle portion is lifted, it is received from the notch piece by the load of the lead storage battery. It is characterized by having a protrusion having mechanical strength capable of resisting a rotational moment force.

According to this configuration, when the handle portion of the handle is gripped by the operator and the lead-acid battery is lifted, a protrusion on the inner circumference of the insertion port slides on the outer circumference of the notch piece and is between the notch pieces. By fitting in the gap, the relative position of the handle with respect to the lid is fixed, and the handle does not rotate around the axis of the insertion shaft. When holding and transporting the lead-acid battery, the handle is gripped and lifted by the operator, and the protrusion receives a rotational moment force from the notch piece due to the load of the lead-acid battery. The rotation angle of the handle with respect to the lid is kept constant without being damaged by the rotational moment force. Therefore, since the handle does not run wild when the lead-acid battery is held and transported, the handle can be easily handled when the lead-acid battery is held and transported.

Further, when the lead-acid battery is stationary, the handle can be fixed and held at an arbitrary angle by fitting the protrusion provided on the inner circumference of the insertion port into the gap at an arbitrary peripheral position. Further, by locating the protrusion at an arbitrary rotation position of the handle that abuts on the outer circumference of the notch piece between the gaps, the protrusion is elastically formed from the notch piece in a direction away from the axis of the insertion shaft. It receives pressing force and stays in that position. Therefore, during the maintenance and inspection of the lead-acid battery, the handle can be held at an arbitrary rotation position, and the maintenance and inspection of the lead-acid battery can be easily performed.

Further, the present invention is characterized in that the gap is formed at each circumferential position of 11 o'clock to 1 o'clock, 2 o'clock to 4 o'clock, and 8 o'clock to 10 o'clock in the circumferential direction of the hollow cylindrical wall.

According to this configuration, the notch pieces cut out in a plurality of hollow cylindrical walls in the insertion shaft are hollow due to the gaps formed at the respective peripheral positions of 2 o'clock to 4 o'clock and 8 o'clock to 10 o'clock. One is located about the lower half of the cylindrical wall on the surface side of the lid. Further, due to the gap formed at the circumferential position from 11 o'clock to 1 o'clock, two are positioned side by side in the upper half of the hollow cylindrical wall on the side opposite to the surface side of the lid. Therefore, one notch piece located in the lower half of the hollow cylindrical wall on the surface side of the lid is not divided into two like the upper half thereof, so that the load of the lead storage battery is the load of the hollow cylindrical wall. It is supported with sufficient strength by one notch located in the lower half. On the other hand, since the hollow cylindrical wall is cut out by three notch pieces, the insertion load of the insertion port into the insertion shaft, which is required when attaching the handle to the lid, is such that the notch piece is cut out of the insertion shaft. Only a small force that bends toward the axis is required.

Further, the present invention is characterized in that the protrusion is provided at a position farthest from the surface of the lid on the inner circumference of the insertion port when the handle portion is lifted and the handle is erected.

According to this configuration, when the handle portion is lifted and the handle is erected, the protrusion fits into the gap formed at the circumferential position of the insertion shaft from 11:00 to 1:00. Therefore, when the lead-acid battery is lifted by the handle, the rotational position of the handle with respect to the insertion shaft is fixed and held in an upright state, and the handle portion is positioned at a position where the operator can easily grasp the lead-acid battery. The storage battery can be easily held and transported. In addition, when holding and transporting the lead-acid battery, the protrusion located at the upper part of the inner circumference of the insertion port, which is fitted in the gap formed at the circumferential position from 11:00 to 1:00, is between 8:00 and 4:00. Since the rotational moment force received from the two notch pieces located at the position and sandwiching the protrusion is small, it is possible to reduce the wear due to the contact with these two notch pieces.

Further, the present invention is characterized in that the protrusion has a rectangular parallelepiped shape in which the corners of the insertion port in the inner peripheral direction and the corners of the insertion port in the insertion direction to the insertion shaft are chamfered.

With this configuration, the corners of the protrusions in the inner peripheral direction of the insertion port are chamfered, so that the rotational resistance of rotation around the insertion shaft of the handle is reduced, and wear of the protrusions when the handle is rotated can be prevented. .. Further, since the corner of the protrusion in the insertion direction of the insertion port to the insertion shaft is chamfered, the insertion load of the insertion port to the insertion shaft can be further reduced, and the handle can be easily attached to the lid.

Further, the present invention is characterized in that the retaining stopper is formed only on each notch piece located at the circumferential position between 8 o'clock and 4 o'clock.

According to this configuration, the retainer is present only at the end of each notch piece located about the upper half of the insertion shaft. Therefore, it becomes easier to insert the insertion port of the handle into the insertion shaft of the lid as compared with the case where the retaining pieces are formed at the ends of all the notch pieces. Further, when the lead-acid battery is suspended by the handle, the lower end of the end portion of the handle on which the insertion port is formed is inserted into the insertion shaft due to the upward load applied to the substantially center of the handle portion when the handle portion is lifted. It bends to the tip side of. At this time, since the retainer is not formed at the end of one notch located in the lower half of the insertion shaft, the retainer is prevented by the bending force of the lower end of the end of the handle on the tip side of the insertion shaft. There is no risk of breaking.

Further, the present invention is characterized in that the insertion shaft forms a tapered shape or an arc shape with the side surface of the base of the standing portion of the lid and the standing surface of the lid.

When the insertion port is inserted into the insertion shaft, stress is generated by the tip of the notch piece bending toward the axis of the insertion shaft, and this stress is the erection point on the lid of the insertion shaft. Focus most on the root of the. However, according to this configuration, the side surface of the base of the upright portion of the lid of the insertion shaft forms a tapered shape or an arc shape with the upright surface of the lid, and the upright portion of the lid of the insertion shaft is formed. Due to the thick root, the insertion shaft will have the mechanical strength to withstand the applied stress.

According to the present invention, it is possible to manufacture a handle with light weight and low cost even when mechanical strength is secured, and a lead storage battery with a handle that is easy to attach to the lid of the handle and improves safety. Can be provided.

It is a perspective view of the lid in the lead-acid battery with a handle by one Embodiment of this invention. (A) is a perspective view of a handle in a lead-acid battery with a handle according to one embodiment, (b) is a partially enlarged perspective view of the end portion thereof, and (c) is a sectional view taken along line IIc-IIc of (a). (D) is a cross-sectional view taken along the line IId-IId of (c), and (e) is a cross-sectional view taken along the line IIe-IIe of (c). (A) is a side view of the lid shown in FIG. 1, (b) is a partially enlarged perspective view of an insertion shaft in the lid, and (c) is a sectional view taken along line IIIc-IIIc of (a). It is a partial perspective view of the handle and the lid when the handle of the lead-acid battery with a handle by one Embodiment is erected. (A) is a partial side view of the handle and the lid shown in FIG. 4, and (b) is a partial side view of the handle and the lid when the handle is laid down. FIG. 4 is a cross-sectional view taken along the line VI-VI of FIG.

Next, a lead-acid battery with a handle according to an embodiment of the present invention will be described. In the following description, the same parts will be described with the same reference numerals.

FIG. 1 is a perspective view of a lid 1 that closes an opening of a battery case (not shown) of a lead-acid battery with a handle according to this embodiment, and FIG. 2 (a) is a perspective view of a handle 2 attached to the lid.

The lid 1 is provided with two sets of a pair of insertion shafts 1a and 1b. Insertion ports 2a and 2b provided at both ends of the handle 2 are fitted to the insertion shafts 1a and 1b of each pair, and two handles 2 are attached to one lid 1. The handle 2 has the insertion ports 2a and 2b at the ends inserted into the insertion shafts 1a and 1b, and the handle portion 2d is lifted to suspend the insertion shafts 1a and 1b and load the lead storage battery. Support. The lid 1 and the handle 2 are formed by molding polypropylene resin or the like. Further, the handle portion 2d has a shaft-shaped horizontal portion parallel to the surface of the lid 1 and gripped by the operator, both end portions of the horizontal portion, and handle ends formed with the insertion ports 2a and 2b. It consists of a connecting arm. The insertion shafts 1a and 1b have the same structure, and the insertion ports 2a and 2b have a line-symmetrical structure centered on the IIc-IIc line. Will be described as representatives of each.

FIG. 3A is a side view of the lid 1, FIG. 3B is a partially enlarged perspective view of the insertion shaft 1a in the lid 1, and FIG. 3C is an enlarged perspective view of the insertion shaft 1a shown in FIG. It is a cross-sectional view taken along the line IIIc-IIIc.

The insertion shaft 1a comprises a hollow cylindrical wall having a hollow cylindrical shape having an axial center in a direction parallel to the surface of the lid 1 and an opening end 1a1 facing the outside of the lid 1 on the long side surface of the lid 1. This hollow cylindrical wall has a gap 1a2 in the circumferential direction, is cut out in three in the axial direction, and is divided into three cutout pieces 1a31, 1a32, and 1a33. At the end of the notch pieces 1a32 and 1a33 on the side of the open end 1a1, retaining stoppers 1a4 protruding outward in the radial direction of the hollow cylindrical wall are formed, respectively. In the present embodiment, the gaps 1a2 are formed at the circumferential positions of 11 o'clock to 1 o'clock, 2 o'clock to 4 o'clock, and 8 o'clock to 10 o'clock indicated by the hands of the clock in the circumferential direction of the hollow cylindrical wall. Further, the retaining 1a4 is formed only on the two notch pieces 1a32 and 1a33 located at the circumferential position between 8 o'clock and 4 o'clock.

As shown in FIGS. (B) and (c), the insertion shaft 1a has a tapered shape 1a5 formed on the side surface of the base of the standing portion of the lid 1 with the standing surface of the lid 1. .. The insertion shaft 1a may be configured such that the side surface of the base of the upright portion of the lid 1 forms an arc shape (corner R) instead of the tapered shape 1a5.

FIG. 2B is a partially enlarged perspective view of the insertion port 2a of the handle 2, and FIG. 2C is a cross-sectional view taken along the line IIc-IIc of the handle 2 shown in FIG. Is a cross-sectional view taken along the line IId-IId of the insertion port 2a shown in FIG. It is a cross-sectional view.

In the present embodiment, the insertion port 2a is provided with a protrusion 2c on the inner circumference that abuts on the outer circumference of the hollow cylindrical wall of the insertion shaft 1a. The protrusion 2c is fitted in each gap 1a2 and has mechanical strength capable of resisting the rotational moment force received from each of the notch pieces 1a32 and 1a33 by the load of the lead storage battery when the handle portion 2d is lifted.

Further, FIG. 4 is a partial perspective view of the handle 2 and the lid 1 when the handle 2d is lifted and the handle 2 is erected, and FIG. 5 (a) is a partial side view of them. Further, FIG. 6 is a partial cross-sectional view of the handle 2 and the lid 1 as viewed from the arrow-viewing direction by breaking the handle 2 and the lid 1 along the line VI-VI in FIG. As shown in each of these figures, in the present embodiment, the protrusion 2c is the farthest from the surface of the lid 1 on the inner circumference of the insertion port 2a when the handle 2d is lifted and the handle 2 is erected. It is provided at a location, that is, at the upper part of the inner circumference of the insertion port 2a. When the handle 2 is erected, the protrusion 2c fits into the gap 1a2 formed between the two notch pieces 1a32 and 1a33.

Further, FIG. 5B shows a portion of the handle 2 and the lid 1 in a state where the handle 2 is laid down and the handle 2 is stored in the handle storage groove 1c (see FIG. 1) provided on the surface of the lid 1. It is a side view. When the handle 2 is laid down, the protrusion 2c fits into the gap 1a2 formed between the two notch pieces 1a31 and 1a32.

The protrusion 2c has a pair of corners 2c1 and 2c1 (see FIG. 2C) chamfered by R (arc) in the inner peripheral direction of the insertion port 2a, and one corner of the insertion port 2a in the insertion direction into the insertion shaft 1a. 2c2 (see FIGS. 2 (d) and 2 (e)) has a rectangular parallelepiped shape with tapered chamfers.

According to the lead-acid battery with a handle of the present embodiment, the insertion shafts 1a and 1b are formed on the side of the lid 1, and the insertion shafts 1a and 1b are inserted and fitted into the insertion shafts 1a and 1b. The insertion ports 2a and 2b are formed on the side of the handle 2. Therefore, the handle 2 can reduce the amount of resin required for ensuring the mechanical strength as compared with the conventional case where the through hole is formed on the lid side and the shaft is formed on the handle side. Therefore, the handle 2 can be manufactured with light weight and low cost even when its mechanical strength is secured.

Further, to attach the handle 2 to the lid 1, the insertion ports 2a and 2b of the handle 2 are inserted into the insertion shafts 1a and 1b of the lid 1, and a plurality of notch pieces 1a31 and 1b formed on the insertion shafts 1a and 1b are formed. This is done by bending 1a32 and 1a33 toward the axes of the insertion shafts 1a and 1b. Therefore, the labor required for the operator for this insertion is the difference between the small force for expanding the ends where the insertion ports 2a and 2b of the handle 2 having a small amount of resin are formed and the notch pieces 1a31, 1a32 and 1a33. Only a small force is required to bend the built-in shafts 1a and 1b toward the axis. That is, when the handle 2 is attached to the lid 1, the force required to insert the insertion ports 2a and 2b into the insertion shafts 1a and 1b can be small. Therefore, the work of attaching the handle 2 to the lid 1 can be performed without labor even by a weak worker, and the assembly becomes easy, and there is a risk that the worker may be injured when attaching the handle 2 to the lid 1. It will not occur and the safety of the installation work will be improved.

As a result, according to the present embodiment, the handle 2 can be manufactured with light weight and cost reduction even when the mechanical strength is secured, and the work of attaching the handle 2 to the lid 1 is easy and safe. It is also possible to provide a lead-acid battery with a handle that improves.

Further, according to the lead-acid battery with a handle of the present embodiment, when the handle 2d of the handle 2 is gripped by the operator and the lead-acid battery is lifted, the protrusions 2c on the inner circumferences of the insertion ports 2a and 2b are notched. By sliding the outer periphery of the pieces 1a31 and 1a32 into contact with the gap 1a2 between the notch pieces 1a31, 1a32 and 1a33, the relative position of the handle 2 with respect to the lid 1 is fixed, and the handle 2 is inserted into the insertion shaft 1a. , 1b does not rotate around the axis. When holding and transporting the lead-acid battery, the handle 2d is gripped and lifted by the operator, and the protrusion 2c receives the rotational moment force from the notch pieces 1a32 and 1a33 due to the load of the lead-acid battery. The protrusion 2c keeps the rotation angle of the handle 2 with respect to the lid 1 constant without being damaged by the rotational moment force. Therefore, since the handle 2 does not run wild when the lead-acid battery is held and transported, the handle 2 can be easily handled when the lead-acid battery is held and transported.

Further, when the lead-acid battery is stationary, the handle 2 is fixed and held at an arbitrary angle by fitting the protrusion 2c provided on the inner circumference of the insertion ports 2a and 2b into the gap 1a2 at an arbitrary peripheral position. Can be done. Further, by locating the protrusion 2c at an arbitrary rotation position of the handle 2 that abuts on the outer periphery of the notch pieces 1a31, 1a32, 1a33 between the gaps 1a2, the protrusion 2c is the axis of the insertion shafts 1a, 1b. It receives the pressing force due to its elasticity from the notch pieces 1a31, 1a32, 1a33 in the direction away from the heart and stays at that position. Therefore, during the maintenance and inspection of the lead storage battery, the handle 2 can be held at an arbitrary rotation position, and the maintenance and inspection of the lead storage battery can be easily performed.

Further, according to the lead-acid battery with a handle of the present embodiment, the notch pieces 1a31, 1a32, 1a33 cut out in a plurality of hollow cylindrical walls in the insertion shafts 1a and 1b are from 2 o'clock to 4 o'clock and 8 o'clock. Each gap 1a2 formed at each circumferential position from 10 o'clock to 10 o'clock positions one in about the lower half of the hollow cylindrical wall on the surface side of the lid 1. Further, due to the gap 1a2 formed at the circumferential position from 11 o'clock to 1 o'clock, two are positioned side by side in the upper half of the hollow cylindrical wall on the side opposite to the surface side of the lid 1. Therefore, one notch piece 1a31 located in the lower half of the hollow cylindrical wall on the surface side of the lid 1 is not divided into two like the upper half thereof, so that the load of the lead storage battery is the hollow cylinder. It is supported with sufficient strength by one notch piece 1a31 located in the lower half of the wall. On the other hand, since the hollow cylindrical wall is notched in the three notch pieces 1a31, 1a32, 1a33, it is connected to the insertion shafts 1a, 1b of the insertion ports 2a, 2b, which are required when the handle 2 is attached to the lid 1. The insertion load of is a small force that bends the notch pieces 1a31, 1a32, 1a33 toward the axis of the insertion shafts 1a, 1b.

Further, according to the lead-acid battery with a handle of the present embodiment, when the handle 2d is lifted and the handle 2 is erected, the protrusion 2c is positioned at the circumferential position of the insertion shafts 1a and 1b from 11:00 to 1:00. It fits into the formed gap 1a2. Therefore, when the lead-acid battery is lifted by the handle 2, the rotational position of the handle 2 with respect to the insertion shafts 1a and 1b is fixed and held in an upright state, and the handle portion 2d is in a position where the operator can easily grasp it. Is located, so the lead-acid battery can be easily held and transported. Further, when holding and transporting the lead-acid battery, the protrusion 2c located at the upper part of the inner circumference of the insertion ports 2a and 2b, which is fitted in the gap 1a2 formed at the peripheral position from 11:00 to 1 o'clock, starts from 8 o'clock. Since the rotational moment force received from the two notch pieces 1a32 and 1a33 located between 4 o'clock and sandwiching the protrusion 2c is small, it is possible to reduce the wear due to the contact with these two notch pieces 1a32 and 1a33. ..

Further, the lead-acid battery with a handle of the present embodiment round-chamfers the corners 2c1 and 2c1 of the protrusions 2c in the inner peripheral direction of the insertion ports 2a and 2b, so that the insertion shafts 1a and 1b of the handle 2 are centered. The rotational resistance of rotation is reduced, and it is possible to prevent the protrusion 2c from being worn when the handle 2 is rotated. Further, the corners 2c2 of the protrusions 2c in the insertion direction of the insertion ports 2a and 2b into the insertion shafts 1a and 1b are tapered and chamfered to further increase the insertion load of the insertion ports 2a and 2b into the insertion shafts 1a and 1b. It can be made smaller, and the handle 2 can be easily attached to the lid 1.

Further, according to the lead-acid battery with a handle of the present embodiment, the retaining 1a4 exists only at the ends of the notch pieces 1a32 and 1a33 located in the approximately upper half of the insertion shafts 1a and 1b. Therefore, as compared with the case where the retaining pieces 1a4 are formed at the ends of all the notch pieces 1a31, 1a32, 1a33, the insertion ports 2a, 2b of the handle 2 are inserted into the insertion shafts 1a, 1b of the lid 1. It will be easier. Further, when the lead-acid battery is suspended by the handle 2, the handle 2d lifts the lower end 2e (see FIGS. 2A and 6) of the end of the handle 2 on which the insertion ports 2a and 2b are formed. As a result, the upward load applied to the center of the handle portion 2d causes the insertion shafts 1a and 1b to bend toward the tip ends. At this time, since a retainer is not formed at the end of one notch 1a31 located in the lower half of the insertion shafts 1a and 1b, the lower end of the end of the handle 2 is on the tip side of the insertion shafts 1a and 1b. There is no risk that the retaining 1a4 will be damaged by the bending force of 2e.

Further, in the lead-acid battery with a handle of the present embodiment, when the insertion ports 2a and 2b are inserted into the insertion shafts 1a and 1b, the tips of the notch pieces 1a31, 1a32 and 1a33 are the shafts of the insertion shafts 1a and 1b. Stress is generated by bending toward the center, and this stress is most concentrated at the base of the upright portion of the lid 1 of the insertion shafts 1a and 1b. However, according to the present embodiment, the side surface of the base of the erection portion of the lid 1 of the insertion shafts 1a and 1b forms a tapered shape 1a5 or an arc shape with the erection surface of the lid 1, and the insertion shaft The base of the upright portion of the lid 1 of 1a and 1b is thick. Therefore, the insertion shafts 1a and 1b have mechanical strength to withstand the stress. Sufficient mechanical strength can be obtained even when the temperature is low, especially in winter, and the insertion shafts 1a and 1b made of resin are easily damaged.

In the present embodiment, the insertion shafts 1a and 1b are set so that the height from the vertical surface of the lid 1 is about 8 mm, the diameter of the outer circumference of the hollow cylindrical wall is about 9 mm, and the thickness of the wall of the hollow cylindrical wall is about 2 mm. When the notch pieces 1a31, 1a32, 1a33 at the end of the hollow cylindrical wall on the side of the open end 1a1 are bent 3 mm to 5 mm toward the axis in the direction perpendicular to the axis, the tapered shape 1a5 or an arc. It has mechanical strength that does not break even when a load stress of 20 MPa or more and 25 MPa or less is applied to the shaped portion. The load-bearing stress at the base of the upright portion of the lid 1 of the insertion shafts 1a and 1b is set to 20 MPa or more and 25 MPa or less because sufficient mechanical strength cannot be obtained if it is less than 20 MPa, while if it exceeds 25 MPa. This is because the mechanical strength becomes higher than necessary, which leads to an increase in the product cost of the lead-acid battery and an increase in the amount of resin, which leads to an increase in the weight of the lead-acid battery.

When the side surface of the base of the erection portion of the lid 1 of the insertion shafts 1a and 1b forms an arc shape with the erection surface of the lid 1, the radius of the arc is preferably 2 mm or more and 5 mm or less. If the radius is less than 2 mm, sufficient strength cannot be obtained at the base of the upright portion of the lid 1 of the insertion shafts 1a and 1b, while if the radius exceeds 5 mm, the mechanical strength becomes higher than necessary, which is a lead-acid battery product. This is because an increase in cost and an increase in the amount of resin lead to an increase in the weight of the lead-acid battery.

In the above embodiment, the case where the insertion shafts 1a and 1b are cut out in the three notch pieces 1a31, 1a32 and 1a33 has been described, but the insertion shafts 1a and 1b may be cut out in three or more pieces. Further, in the above embodiment, the case where one notch piece 1a31 is formed in the approximately lower half of the hollow cylindrical wall of the insertion shafts 1a and 1b has been described, but the approximately lower half of the hollow cylindrical wall is made into a plurality. It may be configured to be cut out. In this case, the notch piece in the lower half of the hollow cylindrical wall reduces the strength of supporting the load of the lead-acid battery, but the insertion holes 2a and 2b of the handle 2 are inserted into the insertion shafts 1a and 1b of the lid 1. The load becomes smaller and it becomes easier to insert.

Further, in the above embodiment, the case where the protrusion 2c is integrally molded with the resin in the insertion openings 2a and 2b of the handle 2 has been described, but the protrusion 2c is formed by a member different from the handle 2, for example, a rubber material. It may be configured to fit into the inner circumference of the insertion ports 2a and 2b.

1 ... lid, 1a, 1b ... insertion shaft, 1a1 ... open end, 1a2 ... gap, 1a31, 1a32, 1a33 ... notch piece, 1a4 ... retaining, 1a5 ... tapered shape, 1c ... handle storage groove, 2 ... handle , 2a, 2b ... Insertion port, 2c ... Projection, 2c1, 2c2 ... Corner of protrusion 2c, 2d ... Handle, 2e ... Lower end of handle 2

Claims (8)

A hollow cylindrical shape having an axial center in a direction parallel to the surface of the lid that closes the opening of the battery case and an opening end toward the outside of the lid, and having a gap in the circumferential direction and a plurality in the axial direction. It is composed of a hollow cylindrical wall notched in the shape of a hollow cylindrical wall, and a retaining piece protruding outward in the radial direction of the hollow cylindrical wall is formed at an end portion of the notched pieces cut out in the plurality of hollow cylindrical walls on the opening end side. In addition, the insertion shaft provided on the lid and
The insertion shaft is inserted into the insertion shaft and has an insertion port that fits into the insertion shaft at the end, and the insertion shaft is inserted into the insertion shaft and the handle portion is lifted to lift the insertion shaft. A lead-acid battery with a handle that has a handle that can be suspended to support the load of the lead-acid battery. The handle fits in the gap in the inner circumference of the insertion port that abuts on the outer circumference of the hollow cylindrical wall, and when the handle portion is lifted, the rotation received from the notch piece by the load of the lead storage battery. The lead-acid battery with a handle according to claim 1, further comprising a protrusion having mechanical strength capable of resisting a moment force. Claim 1 or claim 2 is characterized in that the gap is formed at each circumferential position of 11 o'clock to 1 o'clock, 2 o'clock to 4 o'clock, and 8 o'clock to 10 o'clock in the circumferential direction of the hollow cylindrical wall. Lead-acid battery with handle as described in. 2. Citing claim 2, the protrusion is provided at a position farthest from the surface of the lid on the inner circumference of the insertion port when the handle portion is lifted and the handle is erected. The lead-acid battery with a handle according to claim 3. 2. Or claim 2, wherein the protrusion has a rectangular parallelepiped shape in which the corners of the insertion port in the inner peripheral direction and the corners of the insertion port in the insertion direction to the insertion shaft are chamfered. The lead-acid battery with a handle according to claim 3 or 4. The retaining device according to any one of claims 3 to 5, wherein the retaining member is formed only on each of the notch pieces located at the circumferential position between 8 o'clock and 4 o'clock. Lead-acid battery with handle. The insertion shaft is any one of claims 1 to 6, wherein the side surface of the base of the erection portion of the lid forms a tapered shape or an arc shape with the erection surface of the lid. The lead-acid battery with a handle according to item 1. The insertion shaft has the tapered shape or the arc when the notch piece at the end of the hollow cylindrical wall on the opening end side is bent 3 mm to 5 mm toward the axis in a direction perpendicular to the axis. The lead-acid battery with a handle according to claim 7, wherein the lead-acid battery has a mechanical strength that does not break even when a load stress of 20 MPa or more and 25 MPa or less is applied to the shaped portion.

Images