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Furniture eccentric cams are fasteners that connect two pieces of material, usually wood, in a way that allows for adjustment and a secure hold. They consist of a cam, a screw, and an eccentric disk. The eccentric disk is the distinguishing feature of an eccentric cam furniture connector. It is a small, round, flat piece of metal with a raised edge. The disk is mounted on the screw shaft. It has a notch that fits over the screw head. When the cam is turned, the eccentric disk rotates around the center of the screw shaft. This motion causes the cam to move in and out, creating an eccentric motion. This disk is what makes the cam eccentric. It allows for precise adjustments by changing the distance between the two connected pieces of material. The eccentric disk is usually made of steel or hardened metal. It is designed to be strong and durable, able to withstand repeated turning and heavy loads.
These furniture eccentric cams come in different types based on application and design. Here are some of them:
Standard Eccentric Cam Lock:
Typically used in flat-pack furniture for example cabinets. These locks consist of a metal cam, a screw, and a locking plate. The screws are inserted into pre-drilled holes in one of the connected panels. When the cam is turned using an Allen wrench or a screw driver, it will pull the other panel towards it, creating a strong and stable joint. They are designed for applications requiring quick assembly and disassembly.
Heavy-Duty Eccentric Cam Lock:
These locks are designed for applications that require high levels of security. For instance, in office and industrial furniture. They are made from hardened steel, which is more resistant to picking and drilling. They also have reinforced cams and plates to prevent tampering. Their eccentric motion creates a very strong and stable joint that can support heavy loads. They are ideal for applications requiring high levels of security and strength.
Invisible Eccentric Cam Lock:
These types of eccentric cam locks are used in high-end and custom furniture for example office desks. They are made from high-quality materials like brass or chrome. Their design allows them to be mounted internally within the panels. When locked, the joint remains flush with the surface of the furniture. They are ideal for applications where aesthetics and appearance are more important than accessibility and convenience.
Plastic Eccentric Cam Lock:
These are designed for lightweight applications. For example, in children's furniture and toys. They are made from plastic, which makes them lighter and cheaper to produce. Their eccentric motion creates a weak joint that is only suitable for lightweight applications. They are ideal for applications where cost and weight are more important than strength and security.
Eccentric cams are used to connect two pieces of wood when making furniture. The furniture is then turned to tighten the joint, camming the eccentric and pulling the two panels tightly against each other. An offset washer in the center of the cam provides leverage when the cam is turned. The washer is welded to the cam and has a hexagonal hole in it that fits over a hexagonal screw. The screw is then turned with a wrench to tighten the joint.
The main features of eccentric cams are:
The eccentric cam lock is used in a variety of applications, especially in the furniture industry. Some of the applications include:
When choosing an eccentric cam for furniture assembly, consider the following factors:
Material
The material used in manufacturing eccentric cam furniture hardware affects its strength and durability. Cams made of steel are usually stronger and durable enough for heavy-duty applications. However, zinc cams are more cost-effective and resistant to rust. Cams made of brass are aesthetically pleasing and resistant to rust. Choose the eccentric cam based on the budget and lifespan expectations.
Design and Size
The design of the eccentric cam affects the furniture's stability and the ease of assembly. Consider the size and design of the cam to ensure it fits the intended furniture. A well-designed cam provides more stable joints and improves the overall strength of the furniture.
Compatibility
Ensure that the eccentric cam is compatible with the other hardware components that will be used in the furniture assembly. Choose a cam that is compatible with the bolts, plates and other hardware components to ensure a seamless assembly process and a stable joint.
Ease of Installation
When choosing an eccentric cam, consider their ease of installation. Select the cams that will require minimal machining and provide simple assembly processes. Cams with simple installation will reduce the time spent on assembling the furniture and improve the overall efficiency of the furniture production process.
Adjustability
An eccentric cam needs to be adjustable to compensate for any misalignments or gaps in the joints. Choose a cam that provides easy and precise adjustments to improve the stability and integrity of the furniture. An adjustable cam will also improve the aesthetics of the furniture by eliminating visible gaps.
Supplier's reputation
The reputation of the eccentric cam supplier influences the quality of the product. Choose a reliable and reputable eccentric cam supplier to get quality products. Go through the reviews and testimonials of past customers to get insights into the supplier's product quality and customer service.
Q1: What is an eccentric cam furniture?
A1: An eccentric cam is a type of fastener used in the assembly of panel-based furniture such as cabinets, desks and beds. It is designed to join two or more panels together securely, providing a strong and stable connection. Eccentric cams are commonly used in the furniture industry for products that require bolts and nuts.
Q2: How does an eccentric cam work?
A2: An eccentric cam works by converting linear motion to rotary motion. It is called eccentric because the rotating shaft is off-center. When the cam rotates, the eccentric shaft moves in a circular motion, causing connected parts to move eccentrically. This arrangement provides mechanical advantage and efficient power transmission.
Q3: What are the types of cam furniture?
A3: There are several types of cam furniture, including: Eccentric cam - as discussed, is off-center and converts linear to rotary motion. Circular cam - has a round shape and operates smoothly. Square cam - provides precise movement in square-shaped applications. Triangular cam - offers three-point positioning and stability. Oval cam - distributes force evenly and reduces wear. Slotted cam - has a slot for adjustable positioning and is commonly used in machinery. Heart-shaped cam - provides consistent motion and is used in watches and clocks. Variable cam - allows for the adjustment of the degree of eccentricity to achieve different levels of force or speed.
Q4: What are the advantages of cam furniture?
A4: Some advantages of cam furniture include: Strong joints - eccentric cams provide robust panel-to-panel connections that enhance furniture durability and stability. Easy disassembly and reassembly - cam fasteners allow for the convenient breakdown and reconstruction of furniture, making it ideal for portable designs. Adjustability - cam locks offer the ability to fine-tune the tightness and alignment of joined panels, resulting in aesthetically pleasing finishes. Cost-effective manufacturing - the use of cam fasteners streamlines the assembly process, reducing labor costs and time without compromising quality.
Q5: Are cam locks removable?
A5: Yes, cam locks can be removed. Unlike traditional locks, cam locks are designed for easy installation and removal. They provide security and can be removed when access is required or the lock is replaced.