Cutting knife rest

Abstract

The utility model discloses a cutting knife rest. The cutting knife rest comprises a handle; the knife rest connecting seat is arranged on the handle, the knife rest connecting seat is connected with a first extension rod and two second extension rods, all the extension rods are arranged in parallel, the tail ends of the two second extension rods are connected with positioning wheels, rotating shafts of the positioning wheels are parallel to the second extension rods, and the two positioning wheels are aligned to form a clamping space together; the tail end of the first extension rod is connected with a blade, the blade is closer to the handle than the positioning wheels, and the blade extends from one positioning wheel to the other positioning wheel. The two positioning wheels are clamped at the edge of the hard-wrapped furniture, a user holds the handle to move along the outer edge of the hard-wrapped furniture, and the blade is kept to abut against the outer edge of the hard-wrapped furniture so as to cut redundant hard-wrapped leather; and through the arrangement of the positioning wheel, a user can be helped to accurately control the cutting size and stabilize the cutting knife rest, so that cutting is more accurate and efficient, material waste and rework caused by size errors are reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of knives, in particular to a cutting tool holder. Background Art

[0002] Excess hard-covered leather on hard-covered furniture is mostly cut with a utility knife, which has problems such as low cutting efficiency, difficult to control precision, high labor intensity and safety hazards. In addition, since the shape of hard-covered furniture has complex curvatures, it is not convenient for mechanical large-scale operation. Utility Model Content

[0003] The utility model aims to provide a cutting tool holder with high cutting quality.

[0004] According to the first embodiment of the present invention, the cutting tool holder comprises:

[0005] handle;

[0006] A knife holder connecting seat is provided on the handle, and the knife holder connecting seat is connected to a first extension rod and two second extension rods, the first extension rod and the second extension rod are arranged in parallel, and the ends of the two second extension rods are connected to positioning wheels, the rotating shaft of the positioning wheel is parallel to the second extension rod, and the two positioning wheels are aligned and jointly form a clamping space; the end of the first extension rod is connected to a blade, and the blade is closer to the handle than the positioning wheel, and the blade extends from one positioning wheel to another positioning wheel.

[0007] The cutting tool holder according to the embodiment of the present invention has at least the following beneficial effects: when cutting excess hard-covered leather on hard-covered furniture, the two positioning wheels are first clamped at the edge of the hard-covered furniture. At this time, the edge of the hard-covered furniture is in the clamping space, and the excess hard-covered leather extends toward the handle. Since the blade is closer to the handle than the positioning wheel, the blade is on the path of the hard-covered leather to be cut. The user holds the handle and moves along the outer edge of the hard-covered furniture, and keeps the blade in contact with the outer edge of the hard-covered furniture to cut the excess hard-covered leather. Compared with the prior art, the setting of the positioning wheel can help the user accurately control the cutting size and stabilize the cutting tool holder, making cutting more accurate and efficient, reducing material waste and rework caused by dimensional errors, and improving product quality and consistency.

[0008] According to some embodiments of the present invention, the blade rotates around the first extension rod, and the blade's movement path intersects at least one of the second extension rods. Since the blade must withstand a certain reaction force during cutting, if the blade is fixed, it is very likely to cause the blade to break. Therefore, the present technology sets the blade to be rotating, and it abuts against the second extension rod during cutting, thereby transmitting the reaction force experienced by the blade during cutting to the second extension rod.

[0009] According to some embodiments of the present invention, the blade is detachably connected to the first extension rod. The blade will become blunt after being used for a period of time. In order to ensure cutting quality, the blade needs to be replaced when it becomes blunt.

[0010] According to some embodiments of the present invention, the outer surfaces of the two second extension rods are each provided with a fixing groove, and the movement path of the blade intersects the two fixing grooves. During cutting, the blade is located in the two fixing grooves, which partially restricts the blade's freedom, ensuring the blade's stability during the cutting process and further reducing the risk of damage to hard-covered leather.

[0011] According to some embodiments of the present invention, in order to facilitate mass production, the first extension rod and the two second extension rods are spaced apart along a straight line, and the two second extension rods are adjacent to each other.

[0012] According to some embodiments of the present invention, since different hard-covered furniture has different thicknesses, in order to adapt to hard-covered furniture of different thicknesses, the distance between the two second extension rods is adjustable.

[0013] According to some embodiments of the present invention, an adjustment screw is connected between the two second extension rods. The adjustment screw passes through one second extension rod and is threadedly connected to the other second extension rod. The user adjusts the distance between the two second extension rods by loosening or tightening the adjustment screw, thereby adjusting the height of the clamping space.

[0014] According to some embodiments of the present invention, a spring is provided around the outer periphery of the adjusting screw, and two ends of the spring respectively abut against the two second extension rods. The spring provides pre-pressure for the two second extension rods to prevent the adjusting screw from loosening.

[0015] According to some embodiments of the present invention, the handle has a curved surface on a side away from the blade to increase the stability of the user when holding it, reduce hand fatigue during operation, and thus improve work efficiency.

[0016] According to some embodiments of the present invention, a hand strap is connected to the handle, and a hand space is formed between the hand strap and the curved surface. When the user grips the handle, the hand strap can fit snugly against the back of the hand, reducing the probability of hand slippage during operation and allowing for more stable cutting.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the cutting tool holder provided by an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the cutting tool holder provided by an embodiment of the present utility model in another direction;

[0021] Figure 3 yes Figure 1 A front view of the cutting tool holder shown;

[0022] Figure 4 yes Figure 1 A side view of the cutting tool holder is shown;

[0023] Figure 5 yes Figure 2 The diagram shown is a schematic diagram of the three-dimensional structure of the cutting tool holder after the blade is rotated.

[0024] In the accompanying drawings: 100-handle, 200-blade holder connecting seat, 300-first extension rod, 400-second extension rod, 410-slide groove, 500-adjusting screw, 600-positioning wheel, 610-clamping space, 700-blade, 420-fixing groove, 310-detachable connection structure, 710-cutting edge, 510-spring, 110-hand strap, 101-hand space. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] like Figures 1 to 4 As shown, a cutting tool holder according to an embodiment of the first aspect of the present invention includes a handle 100 and a tool holder connecting base 200. One side of the handle 100 is flat and the other side is curved. The curved surface of the handle 100 is used for the user to grip, which can increase the user's stability when gripping, reduce hand fatigue during operation, and thus improve work efficiency. The tool holder connecting base 200 is located on the flat side of the handle 100. The tool holder connecting base 200 has a certain inclination angle with the center line of the handle 100. A first extension rod 300 and two second extension rods 400 are sequentially connected along the length direction of the tool holder connecting base 200. The first extension rod 300 and the second extension rod 400 are arranged in parallel, and both are perpendicular to the flat side of the handle 100.

[0030] Specifically, the first extension rod 300 and the two second extension rods 400 are spaced apart along the length of the tool holder connecting base 200, with the two second extension rods 400 being positioned adjacent to each other, i.e., the first extension rod 300 is not positioned between the two second extension rods 400. A sliding groove 410 is provided along the length of the tool holder connecting base 200, with one of the second extension rods 400 being provided with a sliding post slidably connected to the sliding groove 410. The first extension rod 300 and the other second extension rod 400 are both fixedly connected to the tool holder connecting base 200, making the spacing between the two second extension rods 400 adjustable.

[0031] In other embodiments, the two second extension rods 400 may also be slidably connected to the slide groove 410 of the tool holder connecting seat 200. In this case, the distance between the two second extension rods 400 is still adjustable.

[0032] To facilitate adjustment of the spacing between the two second extension rods 400, one second extension rod 400 is provided with a through hole arranged perpendicular to the length of the second extension rod 400, and the other second extension rod 400 is provided with a threaded hole arranged perpendicular to the length of the second extension rod 400, with the through hole and the threaded hole arranged opposite each other. An adjustment screw 500 is connected between the two second extension rods 400. The adjustment screw 500 passes through the through hole of one second extension rod 400 and is threadedly connected to the threaded hole of the other second extension rod 400. When the user turns the adjustment screw 500, the threaded connection adjusts the spacing between the two second extension rods 400. For example, when the user turns the adjustment screw 500 clockwise, the spacing between the two second extension rods 400 decreases, while when the user turns the adjustment screw 500 counterclockwise, the spacing between the two second extension rods 400 increases.

[0033] Furthermore, the ends of the two second extension rods 400 are connected to positioning wheels 600. Both positioning wheels 600 are freely rotatable, with their rotation axes parallel to the length of the second extension rods 400. The two positioning wheels 600 are aligned with each other. Since the spacing between the two second extension rods 400 is adjustable, the two positioning wheels 600 can be spaced apart and together form a clamping space 610. In other words, the user can adjust the height of the clamping space 610 using the tension adjustment screw 500. When using the present invention, the two positioning wheels 600 need to be clamped at the edge of the hard-covered furniture. At this time, the height of the clamping space 610 is no greater than the thickness of the hard-covered furniture, that is, the combined thickness of the density board and the upper and lower hard-covered leather. Because different hard-covered furniture has different thicknesses, in order to adapt to hard-covered furniture of different thicknesses, the user can adjust the height of the clamping space 610 using the tension adjustment screw 500.

[0034] Furthermore, a blade 700 is connected to the end of the first extension rod 300. The blade 700 is closer to the handle 100 than to the positioning wheels 600. In other words, if the handle 100 side is considered the rear and the positioning wheels 600 side is considered the front, the blade 700 is located behind the two positioning wheels 600. Furthermore, as the blade 700 extends from one positioning wheel 600 to the other, it is located directly behind the clamping space 610.

[0035] With the above structure, when cutting excess hard-covered leather on hard-covered furniture, the two positioning wheels 600 are first clamped at the edge of the hard-covered furniture. At this time, the edge of the hard-covered furniture is in the clamping space 610, and the excess hard-covered leather extends toward the handle 100. Since the blade 700 is located directly behind the clamping space 610, the blade 700 is in the path of the hard-covered leather to be cut. The user holds the handle 100 and moves along the outer edge of the hard-covered furniture, keeping the blade 700 in contact with the outer edge of the hard-covered furniture to cut the excess hard-covered leather.

[0036] It should be noted that the tilted position of the blade holder connector 200 creates a certain angle between the cutting direction of the blade 700 and the direction of the user's force. This means that when cutting excess hard-covered leather, the user's palm can naturally tilt in the cutting direction, allowing the palm to better apply force. The positioning wheel 600 helps the user accurately control the cutting size and stabilize the cutting blade holder, making cutting more precise and efficient, reducing material waste and rework caused by dimensional errors, and improving product quality and consistency.

[0037] like Figure 2 、 Figure 3 and Figure 5 As shown, in some embodiments of the present invention, due to the toughness and hardness of hard-coated leather, the blade 700 must withstand a certain reaction force when cutting. If the blade 700 is fixed, it is very likely to break. To this end, the blade 700 is configured to rotate. In this case, the blade 700 is connected to the first extension rod 300 and the movement path of the blade 700 intersects with at least one second extension rod 400. This allows the blade 700 to abut against the second extension rod 400 during cutting, thereby transmitting the reaction force experienced by the blade 700 during cutting to the second extension rod 400. Because the blade 700 has rotational freedom, the blade 700 has a directional nature when cutting. The blade 700 can only cut the hard-coated leather when moving in a specific direction. If the blade 700 moves in the opposite direction, the hard-coated leather cannot be cut.

[0038] Furthermore, in order to better fix the position of the blade 700, the outer surfaces of the two second extension rods 400 are provided with fixing grooves 420, which are adjacent to the positioning wheel 600. The moving path of the blade 700 intersects with the two fixing grooves 420, so that when the blade 700 is cutting, the blade 700 can rotate into the two fixing grooves 420 to limit part of the freedom of the blade 700, thereby ensuring the stability of the blade 700 during the cutting process and further reducing the risk of damage to hard-covered thick leather.

[0039] It should be further explained that in order to reduce the setting depth of the fixing groove 420, thereby reducing the impact of the fixing groove 420 on the structural strength of the second extension rod 400, the width of the blade 700 needs to be reduced. The position of the material reduction treatment should be away from the cutting edge 710 of the blade 700, so that the width of the blade 700 near the end of the first extension rod 300 is greater than the width of the blade 700 at other positions.

[0040] Because the blade 700 will become blunt after a period of use, it must be replaced to ensure cutting quality. To facilitate blade replacement, a detachable connection structure 310 is provided between the blade 700 and the first extension rod 300. The present invention does not specify the specific structure of the detachable connection structure 310; it can be detachably connected using a pin and pinhole in the conventional art. If the user discovers that the cutting edge 710 of the blade 700 is damaged, the detachable connection structure 310 can be used to remove and replace the blade 700.

[0041] For example, in order to improve the service life of the blade 700, the blade 700 is made of high-strength steel and has a sharp cutting edge 710. The high-strength steel has good wear resistance and durability. The blade 700 can easily cut hard-covered leather, reducing the pulling and damage to the hard-covered leather during the cutting process, thereby protecting the appearance quality of the hard-covered leather.

[0042] In addition, when the blade 700 is cutting, glue may adhere to the hard-covered leather. If the glue adheres to the blade 700, it will affect the subsequent cutting of the blade 700. Since the blade 700 is rotatably connected to the first extension rod 300, if the user finds glue adhering to the blade 700, the blade 700 can be rotated to a non-cutting position and then whitewashed on the blade 700 to remove the glue without disassembling the blade 700.

[0043] like Figure 1 and Figure 4 As shown, in some embodiments of the present invention, a spring 510 is provided around the outer periphery of the adjusting screw 500. The spring 510 is preferably a compression spring, and the two ends of the spring 510 respectively abut against the two second extension rods 400. The spring 510 remains in a compressed state, providing pre-load pressure for the two second extension rods 400 to prevent the adjusting screw 500 from loosening.

[0044] In some embodiments of the present invention, a hand strap 110 is connected to the handle 100. The hand strap 110 can be a leather belt. A hand space 101 is formed between the hand strap 110 and the curved surface of the handle 100 for placing the hand. When the user holds the handle 100, the hand strap 110 can fit snugly against the back of the hand, reducing the possibility of hand slippage during operation and allowing for more stable cutting.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. Cutting tool holder, characterized in that, include: handle (100); A knife holder connecting seat (200) is provided on the handle (100), and the knife holder connecting seat (200) is connected to a first extension rod (300) and two second extension rods (400), the first extension rod (300) and the second extension rod (400) are arranged in parallel, and the ends of the two second extension rods (400) are connected to positioning wheels (600), the rotating shaft of the positioning wheel (600) is parallel to the second extension rod (400), and the two positioning wheels (600) are aligned and jointly form a clamping space (610); the end of the first extension rod (300) is connected to a blade (700), and the blade (700) is closer to the handle (100) than the positioning wheel (600), and the blade (700) extends from one positioning wheel (600) to another positioning wheel (600).

2. The cutting blade holder according to claim 1, wherein: The blade (700) rotates around the first extension rod (300), and the movement path of the blade (700) intersects with at least one of the second extension rods (400).

3. The cutting blade holder according to claim 2, wherein: The blade (700) is detachably connected to the first extension rod (300).

4. The cutting blade holder according to claim 2, wherein: The outer surfaces of the two second extension rods (400) are each provided with a fixing groove (420), and the moving path of the blade (700) intersects with the two fixing grooves (420).

5. The cutting blade holder according to claim 1 or 4, characterized in that: The first extension rod (300) and the two second extension rods (400) are arranged at intervals along a straight line direction, and the two second extension rods (400) are arranged adjacent to each other.

6. The cutting blade holder according to claim 1, wherein: The distance between the two second extension rods (400) is adjustable.

7. The cutting blade holder according to claim 6, characterized in that: An adjusting screw (500) is connected between the two second extension rods (400), and the adjusting screw (500) passes through one second extension rod (400) and is threadedly connected to the other second extension rod (400).

8. The cutting blade holder according to claim 7, wherein: A spring (510) is sleeved on the outer periphery of the adjusting screw (500), and two ends of the spring (510) respectively abut against the two second extension rods (400).

9. The cutting blade holder according to claim 1, wherein: The handle (100) has a curved surface on a side away from the blade (700).

10. The cutting blade holder according to claim 9, characterized in that: The handle (100) is connected to a hand strap (110), and a hand space (101) is formed between the hand strap (110) and the arc surface.

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