JP4979139B2 - Lumbar burden reduction device - Google Patents

Description

  The present invention relates to a lower back burden reducing device that is used by an operator who performs a work that places a burden on the lower back and is suitable for preventing back pain.

  In the following patent documents, when a user such as a caregiver carries the back and wears it on the back, a rigid frame integrally provided with a protruding portion protruding backward at the waist of the user, and the user has both feet A pair of left and right lower limb attachment / detachment devices to be attached to the lower limb portion, and a pair of left and right elastic connection devices that connect the lower limb attachment / detachment devices to the projecting portion of the frame so that the user can move the frame. A lumbar burden reducing tool that is used by connecting the lower limb demounting device to the projecting portion of the frame by the elastic coupling device in a state where the lower limb demounting device is mounted on the lower limb portion of both feet while being mounted on the back. It is disclosed.

A waist burden reduction device configured as described above is worn by a user such as a caregiver carrying a rigid frame formed in close contact with the back like a rucksack, and the user has lower limbs on both legs. A pair of left and right lower limb attachment / detachment devices attached to the part are used by being connected to the projecting portion of the frame by an elastic connecting device that can be expanded and contracted, and the user bends forward to hold the patient and stand up. When lifting or lifting a heavy object, a bending moment that assists the user's standing is generated by the restoring force of the elastic coupling member, thereby reducing the burden on the user's waist.
JP 2005-192664 A

  The above-described lower back burden reducing device generates the bending moment that assists the user's standing motion by appropriately adjusting the length of the extendable connecting member such as each rubber tube constituting the elastic connecting device. Since it functions to reduce the burden on the user's lower back, it is extremely useful in preventing back pain. However, when walking while wearing this lumbar burden reducing device, the tension generated in the elastic coupling device is imbalanced between the left and right feet, so the stride becomes narrow and walking becomes difficult. There are difficulties such as raising and lowering the arm, tightening the knee, causing pain, and pressure on the shoulder and chest.

In order to eliminate the above-mentioned problems, the present invention has a rigid frame integrally provided with a protruding portion that protrudes rearward at the user's waist when the user carries it on his / her back and the user's both feet. A pair of left and right lower limb supporters to be attached to the lower limbs, a pair of elastic left and right elastic couplings each connected to one of these lower limb supporters, and both ends to each other end of these elastic couplings And a rope that is slidably supported by a pair of support surfaces provided on the left and right sides of the projecting portion of the frame, and the user attaches the frame to the back and attaches the lower limb supporter to both legs. It used the leg supporter by the resilient coupling rope in a state mounted on the leg portion is respectively connected to the projecting portion of the frame, the rope when the user is walking to the left and right There is provided a lumbar burden tool is characterized in that so as to movement. In carrying out the present invention, it is desirable to slidably support the rope on a pair of pulleys attached to the left and right sides of the projecting portion of the frame.

  In the use of the lower back burden reducing device according to the present invention configured as described above, the rope moves in the left-right direction according to the user's foot travel at the protruding portion of the frame when the user walks. The tension of the elastic connector applied to both feet of the user is balanced. This makes it easy to walk without being subjected to pressure on the shoulders or chest, and has the effect of eliminating troubles when moving up and down the stairs.

  An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the waist load reducing device according to the present invention has a rigid frame 10 integrally provided with a protruding portion 11 that protrudes rearward at the waist of the user when the user carries the back on the back. And a pair of left and right lower limb supporters 20, 20 that the user wears on the lower limbs of both feet, and a pair of elastic left and right elastic coupling devices 30, one end of which is connected to each of the lower limb supporters 20, 20. 30 and a rope 40 connected to the other end of each of the elastic connectors 30, 30 and supported on the protruding portion 11 of the frame so as to be movable in the left-right direction.

  The frame 10 is formed by stretching a mesh 13 made of chemical fiber on a frame body 12 made of hard synthetic resin formed in a form to be in close contact with the back of the user, and an upper overhanging portion is formed on the upper portion of the frame body 12. 14 and a downward projecting portion 15 are formed, and a lower end portion of the frame body 12 is formed as a protruding portion 11 protruding rearward. The frame 10 is used by attaching shoulder bands 16 and 16 to the upper overhanging portion 14 and both the left and right sides. The user hangs the shoulder bands 16 and 16 on both shoulders, and (a) of FIG. ) And (b) as shown in the backpack.

  Each lower limb supporter 20 has a Velcro tape (registered trademark) attached to the inner surface thereof, and as shown in FIGS. 2 (a) and 2 (b), the user wraps under the knee joints of both feet. Fixed.

Each elastic connector 30 is a rubber band having one end connected to the lower limb support 20, and each end of the rope 40 is connected to the other end.
The rope 40 is a nylon rope and, as shown in FIG. 3, pulleys 33 attached to the left and right sides of the protruding portion 11 via rope guides 32, 32 attached to the left and right sides of the protruding portion 11 of the frame 10. , 33 and the rubber bands 30 connected to the left and right lower limb supporters 20 are connected to both ends thereof. The length of the rope 40 can be adjusted by a length adjusting tool 41 having a roller with a ratchet stopper attached to an intermediate portion located on the right side of FIG.

  As shown in FIGS. 2 (a) and 2 (b), the above-described lumbar burden mitigation device is such that the user carries the shoulder straps 16 and 16 on both shoulders and the frame 10 is carried like a rucksack. The user wears the lower leg supporter 20 by winding the lower leg supporter 20 under the knee joints of both feet. In this case, the length of the rope 40 is adjusted by the adjustment tool 41 according to the user's physique. Thus, when the user walks with the lumbar burden reducing device of the present invention attached, the rope 40 having both ends connected to the left and right rubber bands 30, 30 according to the travel of the foot is shown in FIG. Move left and right as shown. For this reason, the tension of the rubber bands 30 and 30 applied to both feet of the user is balanced, the user can easily walk, and the stairs are not hindered.

  Further, as shown in FIG. 4, when the user bends to hold the patient or lifts a heavy object, the protruding portion 11 of the frame 10 protrudes upward, so that the left and right rubber bands 30, 30 are A bending moment that assists the user's standing is generated by the repulsive force when pulled. This reduces the burden on the user's waist.

  In carrying out the present invention, the shape, rigidity, material, and the like of the frame 10 constituting the above-described lower back burden reducing device are appropriately changed according to the body shape of the user, or the elastic band 30 constituting the elastic connecting device 30. Instead of another elastic material that can be expanded or contracted, or instead of supporting the rope 40 by the left and right pulleys 33, 33, a sliding surface with a U-shaped cross section formed laterally on the inner surface of the protruding portion 11 of the frame 10 You may support.

The perspective view of the waist burden reduction tool of this invention The perspective view which shows the mounting state of the waist | hip | lumbar part burden reduction tool shown in FIG. Partial enlarged view of the lower back burden reducing tool shown in FIG. The perspective view which shows the use condition of the waist | hip | lumbar part burden reduction tool shown in FIG.

Explanation of symbols

10 .. Frame, 11 .... Projection, 20 .... Lower limb supporter, 30 ... Resilient connector (rubber band), 33 ... Pulley, 40 ... Rope

Claims (5)

A rigid frame that is integrally provided with a protruding part that protrudes backward at the user's waist when the user carries it on the back and a pair of left and right leg supporters that the user wears on the lower limbs of both feet A pair of elastic left and right elastic couplings each connected at one end to these lower limb supporters, and both left and right sides of the projecting portion of the frame by connecting both ends to each other end of these elastic couplings And a rope that is slidably supported by a pair of support surfaces provided on the frame, wherein the user wears the frame on the back and the lower limb supporter on the lower limbs of both feet. used the leg supporter by coupling the rope linked respectively to the projecting portion of the frame, characterized in that the rope has to move to the left and right when the user walks Part burden tool. A rigid frame that is integrally provided with a protruding part that protrudes backward at the user's waist when the user carries it on the back and a pair of left and right leg supporters that the user wears on the lower limbs of both feet A pair of elastic left and right elastic couplings each connected at one end to these lower limb supporters, and both left and right sides of the projecting portion of the frame by connecting both ends to each other end of these elastic couplings And a rope that is slidably supported on a pair of pulleys attached to the frame, and the elasticity is obtained when the user wears the frame on the back and the lower limb supporter on the lower limbs of both feet. The lower limb supporter is connected to the projecting part of the frame by a sex connector and a rope, and the rope moves to the left and right when the user walks. Lumbar burden tool. 3. The rubber band having one end connected to the lower limb supporter and the other end connected to each end of the rope so that the length thereof can be adjusted is adopted as the elastic connection tool. The lumbar burden reducing tool described. The frame is configured by stretching a mesh on a rigid frame formed in a form that is in close contact with the back of the user, and integrally forming the protruding portion at a lower end portion of the frame. Item 1. A lower back burden reducing tool according to any one of Items 1 to 3. The frame is stretched over a rigid frame formed in close contact with the user's back, and an upper overhanging portion where a shoulder band is attached to the upper portion of the frame and a lower portion that is in close contact with the user's back The waist load reduction tool according to any one of claims 1 to 4, wherein an overhang portion is formed and the protruding portion is integrally formed at a lower end portion of the frame.

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