JPH0620173U - Lifting device for freight vehicle platform - Google Patents

Abstract

(57) [Summary] [Purpose] Prevents hands from being pinched and locks the tilt side plate by one-touch operation of the handle. [Composition] A tilting latch device for a cargo vehicle loading platform, which fixes a latching plate fixed to a tilting side plate of a cargo vehicle loading platform by sandwiching it with a support substrate having a fixing hook. A handle 11 rotatably attached at one end thereof to the support base 41, a bifurcated support member 13 rotatably attached to an intermediate portion of the handle 11 near both free ends with a narrow space, a ring-shaped portion and a stem. A hook member 35 slidably attached to the bifurcated support member 13 having a portion,
It also includes a compression spring 37 mounted around the stem portion. The free end side of the handle 11 connected to the forked support member 13 has a wide shape, and when the handle 11 is rotated so as to approach the support base plate 41, the handle 11 is separated from the support base plate 41 by an operator's finger. It is formed by forming a curved concave portion 12 that allows a space for the insertion of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tilting latch device for a cargo vehicle carrier, which sandwiches and fixes a latch plate fixed to a tilting side plate of a cargo vehicle carrier with a support substrate having a fixing hook.

[0002]

[Prior art]

 So-called tilt side plates are attached to the cargo bed of the freight vehicle on three sides except the driver's seat so that they can be opened and closed via a talk plate. These tilt side plates are fixed to the support substrate by a tilt latch device. This tilt latch is specially designed to prevent accidental opening while the vehicle is running.

5 and 6 show a typical example of a conventional tilt latch device. As shown in the figure, the conventional tilt latch device includes a thin plate-shaped handle 31, a bifurcated support member 33 formed by bending a thin plate, and a hooking member having a thin plate-shaped ring portion 35a and a stem portion 35b. 35 and a compression spring 37. One end of the handle 31 is attached to the support substrate 41 so as to be rotatable about a shaft 43. The wide side surface of the handle 31 is substantially at a right angle to the support substrate 41, so that it is possible to support a large moment when the handle 31 is rotated about the shaft 43. The bifurcated support member 33 is bent so that a rectangular space 33a is formed in the center thereof, and the shaft 43 and the stem portion 35b can be housed in this space 33a. The distance between the two free ends of the bifurcated support member 33 is narrowed, and it is attached to the intermediate portion of the handle 31 so as to be rotatable about a shaft 45. One free end side of the bifurcated support member 33 is a stopper 33c, which is longer than the other free end side and is bent in that direction.

The protrusions 35c provided on both sides of the free end side of the stem portion 35b enter into the elongated slot 33d formed corresponding to the bifurcated support member 33. As a result, the hook member 35 is slidably attached to the bifurcated support member 33. The ring-shaped portion 33a has a space 35d in the center thereof, into which the fixing hook 41a of the support substrate 41 is inserted. The compression spring 37 is inserted around the stem portion 35b and between the stem portion 35b and the bifurcated support member 33. In use, first, the tilt side plate 47 of the freight vehicle carrier is lifted so that the latch plate 49 fixed to the tilt side plate 47 surrounds the fixing hook 41a of the support base plate 41. Next, the handle 31 is raised about the shaft 43 in the direction of the chain double-dashed line in FIG. As a result, the bifurcated support member 33, the hooking member 35, and the compression spring 37 all move in the direction of the fixing hook 41a of the support base plate 41. Next, the ring-shaped portion 35a is hooked on the fixing hook 41a of the support substrate 41. As a result, the latch plate 49 is sandwiched between the pillar substrate and the ring-shaped portion 35a, and the tilt side plate 47 is prevented from opening. Next, the handle 31 is returned to the direction of the solid line position in FIG. At this time, since the ring-shaped portion 35a is hooked on the fixing hook 41, it cannot move. On the other hand, the bifurcated support member 33 is moved to the handle 31 side with the rotation of the handle 31 about the shaft 43. As a result, the compression spring 37 is compressed, and the ring-shaped portion 35a is prevented from coming off the fixing hook 41. When the handle 31 comes into contact with the stopper 33c, the handle 31 stops at the position indicated by the solid line in FIG. 6, and the locking is completed.

[0005]

[Problems to be solved by the device]

 In the conventional swing latch device described above, as is apparent from FIG. 6, when the handle 31 is rotated to the position indicated by the solid line in the figure for locking, if the work is performed while holding the handle 31 by hand, the index finger will be used. There is a possibility of being sandwiched between the handle 31 and the stopper 33c of the support substrate 41. For this reason, normally, the handle 31 is held and rotated to the vicinity of the alternate long and two short dashes line in FIG. 6 and then the hand is released, and the handle 31 is pressed by the palm to move the handle 31 to the solid line position in the figure.

As described above, conventionally, it has been troublesome because the lock cannot be performed by a one-touch operation. It should be noted that eliminating the stopper 33c in order to prevent the forefinger from being caught between the handle 31 and the stopper 33c of the bifurcated support member 33 has a drawback that the entire finger of the hand is sandwiched between the handle 31 and the support substrate 41. Similar problems exist. Further, in order to unlock, it is necessary to rotate the handle 31 from the solid line position in FIG. 6 in the direction of the alternate long and two short dashes line about the shaft 43. At this time, since the pressing force of the compression spring 37 acts on the handle 31, a considerable force is required to lift the handle 31. For this reason, due to excessive force, the handle 31 was excessively rotated, and there were many injuries in which the index finger was sandwiched between the handle 31 and the bifurcated support member 33.

[0007]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and provides a tilt-latch device for a freight carrier that can be locked by a one-touch operation of a handle while preventing hand pinching. The present invention relates to a tilt-latch device for a freight-carrying load carrier, in which a latch plate fixed to a tilting side plate of a cargo-carrying carrier is sandwiched between and fixed to a strut substrate having a fixing hook. A rotatably mounted handle and a thin plate-shaped bifurcated support member that is bent so that a space is formed in the center, and is rotatable in the middle of the handle near both free ends with a narrow gap. For the forked support member having the attached bifurcated support member, the thin plate-shaped ring-shaped portion having a space for receiving the hook for fixing the support substrate and the stem portion extending from the ring-shaped portion into the bifurcated support member, A slidably mounted hook member, and a compression spring mounted between the bifurcated support member and the free end side of the stem portion and around the stem portion. The free end side of the handle is wider than the connecting position with the bifurcated support member, and a space for the operator's finger to enter between the handle substrate and the support substrate when the handle is rotated to approach the support substrate. It is characterized in that a curved concave portion that can be formed is formed.

[0008]

[Action]

 Since the part of the handle that is gripped by the hand is offset in the direction away from the strut board, the operator's finger enters between the handle and the strut board even when the handle is rotated to approach the strut board for locking. Enough space is secured. Also, since the part of the handle that is gripped by the hand is wide in the width direction, there is no problem in terms of strength, and it is possible to support a large moment when the handle is rotated about its axis.

[0009]

【Example】

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tilting device for a freight vehicle carrier according to the present invention will be described below with reference to the drawings with reference to the drawings. The tilting latch device for a freight vehicle carrier according to the present invention is basically the same as the conventional tilting latch device shown in FIGS. Therefore, the same reference numerals are given to the same configurations as the conventional ones, and the detailed description thereof will be omitted. The feature of the present invention lies in a part of the handle 11 and the bifurcated support member 13. Like the conventional handle 31, the handle 11 of the present invention is rotatably attached to the support substrate 41 about the shaft 43. Similarly, the free end of the bifurcated support member 13 is attached to the intermediate portion of the handle 11 so as to be rotatable about the shaft 45.

As shown best in FIG. 2, the tip side portion 11 a between the shaft 43 and the shaft 45 of the handle 11 is a thin plate whose wide side surface is substantially perpendicular to the support base plate 41. I am in a shape. A portion 11b of the handle 11 on the free end side with respect to the shaft 45 is wide in the width direction so as to be substantially perpendicular to the distal end portion 11a, and when the handle 11 is rotated so as to approach the support base plate 41. A curved concave portion 12 is formed between the support substrate 41 and the pillar substrate 41 so as to allow a space for the operator's finger to enter. As a result, when the handle 11 is rotated around the shaft 43 so as to approach the support base plate 41, a sufficient space for the operator's finger to enter is provided between the handle 11 and the support base substrate 41. This also means that there is sufficient space between the handle 11 and the support base plate 41 for the operator's finger to enter, without providing the stopper 33c as in the conventional device shown in FIGS. Means to be done. Therefore, in the tilting device for the freight vehicle bed of the present invention, the bifurcated support member 13 does not have a stopper.

In the illustrated preferred embodiment, on the back side of the free end side portion 11b, ie, the side facing the strut base plate 41, a grip 11c in the shape of a finger from the index finger of the operator to the little finger is formed. It is formed inside the recess 12. This allows the handle 11 to be firmly gripped. Further, a thumb pressing surface 11d in the shape of the operator's thumb is formed on the front side near the shaft 45 of the handle 11, that is, on the side opposite to the support substrate 41. This makes it easy to put a big thumb on the handle 11 and apply a large force. The portion connecting the front end side portion 11a and the free end side portion 11b of the handle 11 is an abutting portion 11e, as best shown in FIG. When the handle 11 is lifted for unlocking and rotated about the shaft 43, this portion quickly comes into contact with the vicinity of the free end of the bifurcated support member 13. As a result, even if the handle 11 tries to rotate too much due to excessive force, the rotation is blocked at the initial stage, and there is no concern that the index finger will be sandwiched between the handle 11 and the bifurcated support member 33. Disappear.

Next, a method of using the tilting latch device of the freight vehicle carrier of the present invention will be described. At the time of locking, similarly to the conventional example, the tilt side plate of the cargo vehicle carrier is lifted so that the latch plate 49 fixed to the tilt side plate surrounds the fixing hook 41 a of the support base plate 41. Next, as shown in FIG. 3, the handle 11 is lifted and rotated about the shaft 43. As a result, the ring-shaped portion 35a of the hooking member 35 is hooked on the fixing hook 41a of the support substrate 41. At this time, the latch plate 49 is sandwiched between the pillar substrate 41 and the ring-shaped portion 35a. Next, holding the free end side portion 11b of the handle 11 and rotating it in the opposite direction, it is locked as shown in FIG. In the locked state, the compression force of the compression spring 37 is applied to the catching member 35, so that the ring-shaped portion 35a does not come off from the fixing hook 41a even when the vehicle is vibrating. When unlocking, the free end side portion 11b of the handle 11 is firmly gripped with fingers, and while pushing the thumb against the thumb pressing surface 11d, force is applied to lift the handle 11. As a result, the handle 11 rotates about the shaft 43, and the ring-shaped portion 35a can be removed from the fixing hook 41a. When the ring-shaped portion 35a is removed from the fixing hook 41a, there is nothing holding the latch plate 49, and the swing side plate 47 can be freely opened and closed.

[0013]

【effect】

 In the tilting device of the freight vehicle carrier of the present invention, since the curved recessed portion into which the finger is inserted is formed in the portion to be gripped by the hand of the handle, even when the handle is rotated so as to come close to the support substrate for locking. There is sufficient space between the handle and the support substrate for the operator's finger. Therefore, since the operator is completely free from worrying about finger pinching, it is possible to lock with the hand held from the beginning to the end, and it is possible to lock with one touch while preventing hand pinching. . This has the effect of speeding up the opening and closing work of the tilt side plate. Also, since the part of the handle that is gripped by the hand is wide in the width direction, there is no problem in terms of strength, and it is possible to support a large rotational force when the handle is rotated about its axis.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a tilting latch device for a freight vehicle carrier according to the present invention.

FIG. 2 is a front view of a tilt latch device of the freight vehicle carrier of FIG.

FIG. 3 is a side view showing a state in which a handle is lifted in an example of use of the tilt latch device of the freight vehicle carrier of FIG. 1.

FIG. 4 is a side view showing a locked state in an example of use of the tilt latch device of the cargo vehicle carrier of FIG. 1.

FIG. 5 is a front view showing an example of use of a conventional tilt latch device.

FIG. 6 is a side view showing a locked state in the tilt latch device of FIG. 5.

[Explanation of symbols]

 11 Handle 11a Tip side part 11b Free end side part 11c Grip 11d Thumb pressing surface 11e Abutment part 12 Curved recessed part 13 Bifurcated support member 35 Hooking member 35a Ring-shaped part 35b Stem part 37 Compression spring 41 Strut base plate 41a Fixing hook 43 , 45 Shaft 47 Tilt side plate 49 Latch plate

Claims (3)

[Scope of utility model registration request] 1. A tilt-latch device for a cargo-carrying platform, wherein a latch plate fixed to a tilting side plate of a cargo-carrying platform is sandwiched between and fixed to a supporting base plate having a fixing hook. A rotatably mounted handle and a thin plate-shaped bifurcated support member that is bent so that a space is formed in the central part, and can be rotated to the middle part of the handle near both free ends with a narrow gap. A bifurcated support member attached to the bifurcated member, a thin plate-shaped ring-shaped portion having a space for receiving a hook for fixing the support substrate, and a stem portion extending from the ring-shaped portion into the bifurcated support member. A hook member slidably attached to the support member, and a hook member provided between the bifurcated support member and the free end side of the stem portion and around the stem portion. A compression spring that is formed on the free end side of the handle, and the free end side of the handle is wider than the connecting position with the bifurcated support member. A tilting latch device for a cargo vehicle bed, which is formed by forming a curved concave portion that allows a space for an operator's finger to enter. 2. The tilting latch device for a cargo carrier according to claim 1, wherein the fingers of the operator's forefinger to little finger are provided on the backside of the free end side of the connection position of the handle with the forked support member. A tilting latch device for a freight vehicle loading platform, characterized in that a grip having a shape is formed. 3. The tilt latching device for a cargo carrier according to claim 2, wherein a thumb pressing surface in the shape of an operator's thumb is provided on the front side in the vicinity of the connection position of the handle with the forked support member. A tilt latch device for a cargo vehicle bed, which is formed.